ENVO BIO GAS PLANT

POST NUMBER :08   Date : 02/05/2004
BIO GAS PLANT PROCESS DESCRIPTION:

FLOW CHART: CRUSHER(less than 7mm particle size)----thermophilic Aerobic digester(Temp 55 degree C  )---Mesophilic Anaerobic Digester(37 Degree C )---Manure Pit

Biotechnology process

stage one : hydrolysis by hydrolytic bactaria, conversion of extracellular molecules

stage two : thermophilic fermentation based on carbohydrates

stage three : synthesis of volatile fatty acids by acetogenic bacteria

stage four : synthesis of methane by methanogenic organisms

The Principle:

Add bio degradable Solid waste  into predigestor tank. 

Use of thermophilic microbes for faster degradation of the waste. The growth of thermophiles in the predigestor tank is assured by mixing the waste with hot water and maintaining the temperature in the range of 55-60oC. The hot water supply is from a solar heater. Even one-hour sunlight is sufficient per day to meet the needs of hot water.

After the predigestor tank the slurry enters the main anaerobic tank where it undergoes mainly anaerobic degra-dation by a consortium of archae-bacteria belonging to Methanococcus group.  They produce mainly methane from the cellulosic materials in the slurry.

The undigested lignocellulosic and hemicellulosic materials then are passed on in the settling tank. After about a month high quality manure can be dug out from the settling tanks. Earth worm can be introduced to settling tank to speedup the process.There is no odour to the manure at all. The organic contents are high and this can improve the quality of humus in soil, which in turn is responsible for the fertility.The manure generated is high quality and can be used in fields.This manure can be supplied to farmers at the rate of 4-5 Rs. per Kg. Alternatively municipal gardens and local gardens can be assured of regular manure from this biogas plant.

As the gas is generated in the main tank, the dome is slowly lifted up. This gas is a mixture of methane (70-75%), carbondioxide (10-15%) and water vapours (5-10%). It is taken through GI pipeline to the gas purification unit. Drains for condensed water vapour are provided on line. This gas burns with a blue flame and can be used for cooking as well.

The gas generated in this plant is used for gas lights fitted around the plant. The potential use of this gas would be for a canteen. The purified gas can be fed to bio fuel electric generator to produce electricity. Gas can be bottled and used to run vehicles.

Tanks of Biogas Plant

1.     Mixer with stirrer to mix hot water (1:2) to form a slurry,

2.     Aerobic Digester,

3.     Anaerobic digeter

Mechanical Items :

1.Gas Holding MS Steel Dome

2.Steel Fabricated Covers on Manure Pits,

3.Mixer Stirrer ,

4.Air Compressor

5.Gas Holder and gas purification system

6.Water Pump and Slurry Pump

7.Water and Gas Pipelines on Plant area

8. Electric Fittings & Miscellaneous

Cost details, saving and payback period from a biogas plant:

The cost details and the savings envisaged from the plant are given in the following table. The life of the plant could be 20-30 years and payback period is 4-5 years.

Capacity (Tons / Day)	Installation Cost (Rs In Lacks)	Monthly Operation and Maintenance Charges (Rs)	Methane Generation M3	Manure production (tons /day)	Area Required M2	Power	Manpower	Fresh Water (KL /day)	Hot water (Ltr / day of 50-60 C0)	Cooking Fuel (Equivalent to LPG Cyl / day)
1	30-35	8,000/-	100-120	0.1	300	5hp(2hr)	2	2	200	2-3
2	36-39	12,000/-	200-240	0.2	500	5hp(3hr)	3	3	400	4-5
4	60-65	22,000/-	400-480	0.3	700	5hp(3hr)	4	5	400	8-10
5	85-87	30,000/-	500-600	0.5	800	10hp (4hr)	5	7	600	12-14 (25Kw)
10	1 cr -1.2 cr	50,000/-	1000-1200	2.5	1200	15hp (4hr)	10	15	1000	22-25 (50Kw)

* This is an approximate cost for biogas generation plant and may increase by 10%–20%, depending on location, site-specific parameters, cost of materials, labour cost, etc., in different states/cities. Cost of additional infrastructure like office space, toilets, security, Godown, Shades and power generation will be extra, if required.

Rs – rupees; m3 – cubic meters; m2 – square meters; h – hour; kL – kilolitre; LPG – liquefied petroleum gas; kW – kilowatt; cyl –

Decentralised treatment options introduced in new rules.

The earlier rules relied on costly centralised facilities for treating and disposing municipal wastes while approximately 50 per cent of it can be easily turned into compost at the local level. Thus, the draft rules have made the much-needed provision for providing incentives to decentralised waste treatment facilities. 

http://www.downtoearth.org.in/blog/a-clean-country-in-the-offing-with-new-solid-waste-rules-49484

Considering an average garbage generation per capita per day as 0.450 Kg, we can assume a total garbage generation for a population of 100,000 as 45,000 Kg per day

Proven on wide range of wastes and feedstocks including

• Livestock and agricultural wastes
• Biomass
• Sewage and industrial sludges
• MSW and catering wastes
• Food industry wastes
• Vegetable market waste
• Restaurant Waste
• Farm House/Cattle manure waste
• Slaughter House/Tannery waste
• Presumed waste

Suitable locations for installation of plant

Hotel premises, army/big establishment canteens (private/ government), residential schools/colleges, housing colonies, religious places / temple trusts, hospitals, hotels, sewage treatment plants, villages, etc.

Decentralised integrated solid waste, waste water and solar energy project at New Motibagh, New Delhi

decentralised integrated solid waste, waste water and solar energy project at New Motibagh, New Delhi

please read http://www.downtoearth.org.in/blog/the-waste-conundrum-44092

Waste Water Management: About 70% of the 8 lakh litres of water supplied to the residents, that is, 5.6 lakh litres of waste water generated is treated in a decentralized waste water treatment plant within the campus using the Moving Bed Bio-reactor (MBBR) technology. There is a net savings of Rs.5 lakhs per annum due to direct and indirect savings from a decentralized Waste Water Treatment plant (WWTP) in the campus whose running cost is Rs.55.55 lakhs as opposed to the centralized sewerage system costing Rs.60.62 lakhs.  

The energy savings from 300 solar street lights at the GPRA complex, covering internal roads, common areas, parking lots and bunglows, help in saving Rs.32.28 lakhs per annum. Along with solar water heaters, the savings on electricity is close to Rs.35 lakhs a year.     

Therefore, a decentralised integrated solid waste, waste water and energy project for about 1000 households can achieve clean and green surroundings and financial savings to the tune of Rs.40-50 lakhs per annum

Bio Remediation--Microbes Cleaning Up the Environment

Bioremediation is a waste management technique that involves the use of organisms to remove or neutralize pollutants from a contaminated site. According to the EPA,bioremediation is a “treatment that uses naturally occurring organisms to break down hazardous substances into less toxic or non toxic substances”.

Microbes are often used to remedy environmental problems found in soil, water, and sediments. 

We have done the following Technologies in bioremediation

1. Composting for MSW 

2. Aerated Lagoon for waste water

3.Rotating biological contactor for waste water
Watch videos:
https://vimeo.com/tag:bioremediation

waste to energy plants consultancy providing design and supply of Biogas plants, Anaerobic Digestion (Bio Methanation)

http://www.wasteworks.ie/   Wasteworks international consultancy providing design and supply of
Biogas, Anaerobic Digestion and Reedbeds and Wetlands systems

ANAEROBIC DIGESTER SYSTEMS

Proven on wide range of wastes and feedstocks including

• Livestock and agricultural wastes
• Biomass
• Sewage and industrial sludges
• MSW and catering wastes
• Food industry wastes
• Vegetable market waste
• Restaurant Waste
• Farm House/Cattle manure waste
• Slaughter House/Tannery waste
• Presumed waste

Biogas

www.biogasproducts.co.uk
Wasteworks is process consultant to UK Biogas Supplier Biogas Products Ltd,

www.epswater.com
Wasteworks is a long-term AD consultant to EPSwater

www.enviroserv.co.za
Wasteworks is biogas design consultant to Enviroserv of South Africa developing and supplying AD plants in Africa

Quantity of Solid Waste Generation

Considering an average garbage generation per capita per day as 0.450 Kg, we can assume a total garbage generation for a population of 100,000 as 45,000 Kg per day

MSW CONSULTANT

Plastic waste recycling industry in DELHI : The quantity of plastic wastes generated in Delhi is estimated to be 300 mt per day.Plastic waste collection and segregation, recycling and reprocessing systems and promoting end-product applications with desired recyclable component based on Guidelines for Recycling of Plastics to be issued by the Bureau of Indian Standards.

we do consultancy for that.

Landfill Leachate Treatment

Landfill Leachate Treatment

Landfill leachate is generated from liquids existing in the waste as it enters a landfill or from rainwater that passes through the waste within the facility. The leachate consists of different organic and inorganic compounds that may be either dissolved or suspended. An important part of maintaining a landfill is managing the leachate through proper treatment methods designed to prevent pollution into surrounding ground and surface waters

The physical appearance of leachate when it emerges from a typical landfill site is a strongly odoured black, yellow or orange coloured cloudy liquid. The smell is acidic and offensive and may be very pervasive because of hydrogen, nitrogen and sulfur rich organic species such asmercaptans.

If leachates have a distinguishing characteristic, it is that they are variable.  Flows change based on the weather  – increasing during rainy periods, decreasing during dry and waste concentrations can change dramatically over the life of the landfill.   As a result, no landfill leachate is constant over time, and no two leachates are the same.

When the landfill is a few years old the dominated fermentation phase is acidogenic and the leachate generated is generally referred as “young”.In that case, COD and BOD reaches very high concentrations. The ratio of BOD/COD is higherthan 0.7 and pH is low due to the high concentrations VFAs. Landfill grater than 10 years old aregenerally in the methanogenic phase and theleachate generated is referred to as “old”. Duringthe methanogenic phase, bacterias are degradingthe VF-acids and reduce the organic strength ofleachate, leading to the pH value higher than 7.In “old” leachate BOD decreases faster than CODand the radio BOD/COD is stabilized on the levelless than 0.2 [2,4].Anaerobic treatmentprocess is used mainly for young landfill leachate,which BOD5 and BOD5/COD ratio is very high[2]. However, Kettunen, et al. [10] performedthe treatment with UASB reactor were municipal landfill leachate was having COD higher than800 mg × dm−3 and the BOD/COD radio washigher than 0.3.Anaerobic processes of landfill leachate inUASB reactor allow complete removal of CODfrom 65 to 76% and BOD5 removal beyond90% [11].

 

Table 1

Characteristics of landfill leachate 

Parameter Value

COD, mg O2 × dm−3 3500–4200

BOD5, mg O2 × dm−3 380–420

pH 8.2–8.4

Alkalinity mg CaCO3 × dm−3 4900–5200

Chloride mg Cl−× dm−3 1800–2500

Ammonia nitrogen, mg NH4+× dm−3890–994

VFA, mg CH3COOH × dm−3 500–900

landfill leachate  quantity , 5%

UNITS OF TREATMENT OF LANDFILL LEACHATE:

1.      Collection Sump: Areas in which rainfall is higher than average typically have larger sumps. A further criterion for sump planning is accounting for the pump capacity. The relationship of pump capacity and sump size is inversed. If the pump capacity is low, the volume of the sump should be larger than average. It is critical for the volume of the sump to be able to store the expected leachate between pumping cycles. This relationship helps maintain a healthy operation. Sump pumps can function with preset phase times. If the flow is not predictable, a predetermined leachate height level can automatically switch the system on. Other conditions for sump planning are maintenance and pump drawdown. Collection pipes typically convey the leachate by gravity to one or more sumps, depending upon the size of the area drained. Leachate collected in the sump is removed by pumping.

2.    UASB Reactor:

3.     Clarifier Tank :

4.    Clear Water Tank:

5.     Activated Carbon Filter:

LITERATURE STUDY: WASTE TO ENERGY CONCEPTS

Energy recovery as electric power is a feature of all waste-to-energy systems.

Evaluation of the applicability of the technologies of biomethanation, gasification/pyrolysis,incineration and landfilling as Waste-to-Energy options, and their comparison against composting as a competing technology for waste disposal, has shown the following:

• Biomethanation has emerged as a favoured technology for various urban and industrial waste.

• Gasification/pyrolysis have a distinct promise, and although there are limitations to its uptake, these can be overcome as the technology matures.

• Incineration is a mature technology for energy recovery from urban and industrial wastes and has been sucessfully commercialized in the developed countries. The recent focus has been on environmental compliance due to which it will become an expensive option.

• The present trend is in favour of material recovery facilities and a shift away from landfills for MSW disposal in developed countries.

• Compositing is not a WTE option and does not come out as worthwhile waste treatment process.

• Technologies like landfill with gas recovery and composting can become viable options for certain locations in India, as a short to medium term option.

 

Landfill Leachate Treatment Technologies

Landfill leachate may be characterized as a water-based solution of four groups of contaminants ; dissolved organic matter (alcohols, acids, aldehydes, short chain sugars etc.), inorganic macro components (common cations and anions including sulfate, chloride, Iron, aluminium, zinc and ammonia), heavy metals (Pb, Ni, Cu, Hg) , and xenobiotic organic compounds such as halogenatedorganics, (PCBs, dioxins, etc.).^[4]

Leachate treatment technologies fall into two basic types, biological and physical/chemical. In larger systems and depending on the treatment goals, integrated systems which combine the two are often used.
The typical processes used for pretreatment include equalization, aeration, pH adjustment and metals removal.

The most common biological treatment is activated sludge - a suspended-growth process that uses aerobic microorganisms to biodegrade organic contaminants in leachate. With conventional activated-sludge treatment, the leachate is aerated in an open tank with diffusers or mechanical aerators. After the aeration phase, the mixed liquor of microorganisms and leachate is pumped to a gravity clarifier.

The rotating biological contactor (RBC) is an attached-growth, aerobic, biological treatment process in which a series of discs are partially submerged in a tank of leachate. The disks eventually develop a slime layer, then rotational shear forces strip off the excess solids and carry them with the effluent to a clarifier, where they are settled and separated from the treated waste.

The carbon technique removes dissolved organics from the leachate. Although carbon systems may be useful with some older leachates, the cost of the carbon in the regeneration stage can make the process one of the most expensive treatment options.

Advanced Treatment The new landfill regulations have made some treatment systems obsolete. Many landfill operators are now choosing new systems that produce a cleaner effluent and can reduce capital and operating expenses. Such systems include:

* Recirculation and Injection. Direct recirculation distributes the leachate onto the landfill in a semi-closed loop process. While promising, this system has limitations of recirculating 100 percent of the leachate without literally soaking the landfill.

* Membrane Solution. Membrane technology can be adapted to many steps of purification and keep clean-up standards at a high level. Membranes can remove contaminants without extensive biological infrastructure or toxic chemicals.

* Reverse Osmosis (RO). Prior to 1988, reverse osmosis wasn't able to treat leachate successfully due to the core membrane design of spiral-wound modules, which were state-of-the-art at that time. While this method produced efficient results, it also promoted bio-fouling and premature clogging.

Disc Tube technology, developed by the Rochem Group, has been installed in more than 35 European landfills to treat feed waters that would foul conventional RO configurations. After the contaminated water is fed into the tubular chamber, its flow is controlled as it passes through a system of discs and over flat membrane cushions, removing clean water and concentrating the waste material. The turbulent flow reduces the membranes' tendency to scale or foul and requires cleaning less frequently.

The system removes heavy metals, suspended solids, ammonia and hazardous non-degradable organics including pesticides and herbicides without extensive pre-treatment systems. The pure water is clean enough for direct discharge into the environment and accounts for 75 to 92 percent of the leachate. The remaining concentrate can then be recycled to the landfill or further processed.

Siemens Water Technologies' PACT® systems combine biological treatment (activated sludge) with adsorption (powdered activated carbon) so that physical and biological treatment occur simultaneously. The system removes biodegradable and non-biodegradable pollutants in a single process

The most cost effective form of treatment for high levels of BOD, COD and ammonia is intense biological oxidation, and in the UK the sequential batch reactor is the most common technology used. The sequence batch reactor (SBR) is a form of activated sludge treatment.

Granular activated carbon, in combination with biological pretreatment, is a proven and economical technology which is effective in reducing Chemical Oxygen Demand (COD), Adsorbable Organic Halogens (AOX), pesticides, solvents, organic compounds and other toxic substances to the strictest legal National and EC norms. The chemical composition and content of landfill leachate can vary greatly between landfill sites. The age of the landfill, type of waste and treatment processes already in operation are the parameters to be considered.

COD levels can range from 200mg/l to 2000mg/l. Carbon consumption is normally dependent upon the COD adsorption rather than the AOX. Therefore COD will be the determining factor in estimating carbon consumption.

However, an aerobic system must be used after the UASB reactor for the effluent to meet the standards defined for the proposed disposal method.

 

Combined treatment of leachate from sanitary landfill and municipal wastewater by UASB reactors

This study showed the potential of anaerobic treatment in an UASB reactor treating a combination of domestic wastewater and leachate in a 5% volumetric ratio of leachate. Under these conditions the reactor assimilated properly the leachate fraction incorporated. With a HRT of 8 h and a mean volumetric organic load of 2.84 kg m(-3) d(-1) COD removal efficiencies around 70% were obtained,

When installing a leachate treatment system, choose a plan that will provide the maximum amount of long-term flexibility to assure compliance with future regulations and discharge standards.

LEACHATE RECYCLE  CONCEPT :The major objective of gas studies is directed towards maximizing production rates of gas by biodegradation of the waste while simultaneously reducing the period of time that gas is evolved by recycling leachate. It describes potential means of managing both leachate quality and quantity by leachate recirculation to aid in decomposition of the waste while also treating the organic material in the leachate and reducing the quantity of leachate that must be treated and hauled away from the site.

MSW PROJECTS IN INDIA & BIO GAS PLANT

----- Original Message -----

From: saleem asraf syed imdaadullah

To: goswami vivek

Sent: Sunday, September 14, 2008 2:42 PM

Subject: ITS A GAS BIO GAS

http://timesofindia.indiatimes.com/Its_A_Gas/rssarticleshow/3477605.cms

San Antonio in the United States could become the first city to draw all its energy requirements from methane gas generated from the city's water treatment system through recycling 14,000 tonnes of biosolids in sewage annually. The methane source includes human waste that, if left untreated and unutilised, would only pollute soil and water.

Treating bio-waste, however, could generate an average of 1.5 million cubic feet of gas a day - enough to fill 1,250 tanker trucks daily - according to the system's chief operating officer. A by-product of human and organic waste, methane is the chief component of natural gas that can fuel generators, power plants and furnaces.

Closer home, gobar gas - natural gas obtained from methane released by cattle waste - as a green alternative to diesel and other fossil fuels has been taken up seriously, particularly in rural households. However, a lack of adequate hygiene is a constraint because the gas formation - in the large containers filled with gobar - makes the drum's lid rise, and there is spillage all around the plant. So, in India gobar gas plants are fertile breeding grounds for mosquitoes and other pests. But this is not an insurmountable problem. Gobar gas plants could be expanded and diversified to include energy extraction from all kinds of biomass and the gas so produced could fuel power stations - as San Antonio proposes to do - and with improved sanitation, the experiment could yield good results for several Indian cities.

As a renewable resource, biomass - either from plants, agriculture and forestry residues, animal or human waste - is biodegradable and so is far more eco-friendly than petroleum-derived fuels. And they are relatively easier to source and process, unlike the sophisticated instruments and know-how required to extract oil or refine coal. Ethanol derived from biofuels has a very high octane rating. It might deliver less energy than gasoline, but by blending about 10 per cent ethanol and petrol or diesel together, a feasible balance is achieved with no perceptible effect on fuel economy.

America's space agency NASA is sponsoring a joint project to turn human waste into a power source for spaceships using a process that could also produce other chemicals that can be used on board. Instead of turning up our noses at the idea of recycling human waste and other biosolids in sewage, it would be worthwhile to explore fully and exploit the immense potential hidden in what we routinely regard as being useless.

MSW projects ndia & leachate management

 

 

 

 

Source of article: http://greenenergysk.com/?p=14

Name of Project "SGRRL Municipal Solid Waste Project" at Mandur Village, Hoskote Taluk, Bangalore (East) District, Karnataka by M/s Srinivasa Gayathri Resource Recovery Ltd (SGRRL).

Location of the Project (Village / District / State) Mandur Village, Hoskote Taluk, Bangalore (East) District, Karnataka

Brief Description of the Project SGRR Ltd. is in the process of establishing and managing and integrated waste to energy facility comprising of a 1000 Tons Per Day (TPD) RDF (Refuse Derived Fuel) Plant and a power plant of 8 MW in its Phase I activity. The RDF plant would be a Municipal Solid Waste (MSW) treatment facility capable of producing a minimum of 300 TPD RDF which will be used for generating electricity.

Estimate of GHG abatement in tCO2 eq. 414601

Host Country Approval Status Approved

Project Owner / Proponent Srinivasa Gayathri Resource Recovery Ltd (SGRRL), No.87, KR Road, #303, Shreshta Bhumi Complex Bangalore-560 004, Karnataka Contact Person: Mr. B.R. Ashirwad Joint Managing Director

Baseline Methodology "Avoided emissions from organic waste through alternative waste treatment processes" – AM0025- Version 9, Sectoral Scope – 1, 13 dated 10th August, 2007.

Project Start date 22.06.2005 (Agreement signed with BBMP)

Project completion date Feb. 2009 (Financial closure document)
========http://indscanblog.com/2009/04/19/municipal-solid-waste-based-composting-at-kolhapur/
Estimate of GHG abatement in tCO2 eq. 96893

Host Country Approval Status Approved

Project Owner / Proponent Zoom Bio-Fertilizers Private Limited (ZBPL), Shivsagar Estate, Dr Annie Besant Road, 6th Floor, Devchand House, C Block, Worli, Mumbai- 400 018, Maharashtra. Contact Person: Mr. Samuel Kurian Sr. Manager Environment

Baseline Methodology Approved Small Scale Baseline Methodology AMS III F: "Avoidance of methane production from decay of biomass through composting", Version
=============
Name of Project "SESL 6 MW Municipal Solid Waste based power Project" at Vijayawada & Guntur, Andhra Pradesh by M/s Shriram Energy Systems Limited.

Location of the project (village / District / State) Vijayawada & Guntur, Andhra Pradesh

Brief Description of the project This first-of-kind project uses TIFAC assisted technology for refinement of MSW to produce fuel grade pellets and fluff. The plant processes the waste to generated RDF fluff, which is combusted, in a 28 TPH capacity boiler with 65 ata and 485 C configuration, as main fuel in the steam generator, the steam passes through steam turbine to generate power. For processing MSW, specially designed shredders, air density separators, conveyors and rotary screens are used. The power is sold to APTRANSCO.

Estimate of GHG abatement in tCO2 eq. 423368

Host Country Approval Status Approved

Project Owner / Proponent M/s Shriram Energy Systems Limited. Ameerpet, G-1, B Block, United Avenue (North End), Hyderabad 500 016 Andhra Pradesh Contact Person: Mr. Gopala Krishna Murthy, Managing Director, Fax: +91 (040) 2372 9551

Baseline methodology Approved AMS- III E: "Avoidance of Methane Production from Biomass decay through controlled combustion" AMS- ID: "Renewable Electricity Generation for the Grid"
=========http://indscanblog.com/2008/11/30/municipal-solid-waste-treatment-cum-energy-generation/
Brief Description of the project The project is based on the Municipal Solid Waste/ Land disposal (MSW). It contributes to environmental improvement and social development in many ways while also extracting the economic value of wastes. The project proposes to provide opportunity to the rag pickers who can collect the same recyclables from the plant thereby providing employment to poor local folks specially women. The project helps in bettering the environment in the city by a hygiene treatment of solid waste, therefore improve health standards. Global benefits associated with the project are the ones associated with the reduction of green house gases (methane & CO2) which cause global warming.

Estimate of GHG abatement in tCO2 eq. 1620000

Host Country Approval Status Approved

Project Owner / Proponent Asia Bioenergy India Limited (ABIL), 824, Pooonamallee, Near KMC Kilpauk, Chennai-600010 Tel: +91 (044) 26427577/26414705-08 Contact person: Mr. P. Subramani, M.D. Email: subbu@asiabioenergy.com

ABIL is the consortium of following three companies:
1. Enkem Engineers Private Limited (Enkem) 824, Pooonamallee, Near KMC
High Road, Chennai-600010 Tel: +91 (044) 6411362, 6428992 Email: enkem99@md3.vsnl.net

2. Entec UGM BH of Austria (Entec) Entee-Environment Technology UMWELTTECNIK GMBH Austria, 6972 FUSSACH, SCHILFWEG 1 (RSB-HAUS) Tel: +43-55783646

3. Jurong Engineering Limited, Singapore (Jurong), 25, Tanjong Kling Road, Jurong Town, Singapore 628050 Tel: +65-2653222 Fax: +65-2684211 Email: info@jel.com.sg
===============http://indscanblog.com/2009/05/15/methane-recovery-and-power-generation-from-sewage-treatment/
Name of Project "Methane recovery and power generation from sewage treatment plant by Surat Municipal Corporation, Gujarat, India" at Bhatar, Karanj and Singanpore of Surat District by M/s Surat Municipal Corporation.

Location of the Project (Village / District / State) Bhatar, Karanj and Singanpore of Surat District, Gujarat.

Brief Description of the Project The proposed project is planning to install a 3MW power plant based on Sewage gas obtained during sewage treatment process. Biogas is generated from the digesters during the anaerobic sludge treatment process in the sewage treatment plant. This biogas contains 60-75%CH4, 25-40%CO2 and H2S well below 0.5%. The H2S contained in biogas is highly corrosive and it is required to remove this hydrogen sulphide to the desired limit. The Biogas collecting blowers are used to collect the gas from the digesters, which blow the biogas to H2S scrubbing system to remove H2S from biogas. Then biogas could be used to generate electricity. The biogas holder is provided to boost the pressure of biogas to desired level for the biogas engine. Biogas engine type is spark ignited internal combustion engine. The electricity generated by biogas engine generator set is used to run various units of sewage treatment plant.

Estimate of GHG abatement in tCO2 eq. 281275
===========http://www.ipsnews.net/news.asp?idnews=36677
Converting Waste to Energy – Not So Green
By Keya Acharya

BANGALORE, Feb 22, 2007 (IPS) – A stream of protests has hit India's Ministry of New and Renewable Energy (MNRE) for sanctioning municipal waste-to-energy (MWTE) projects that are collapsing under an avalanche of incombustible wastes.
=========
Brief Description of the project The purpose of the project essentially is to utilize available biomass in the region effectively for generation of electricity energy. This emphasis on conservation of environment through use of biomass fuel and Green House Gas (GHG) emission reduction, economic growth. The project has also reduced the ever-increasing demand and supply gap of electricity. The project has increase employment, create business opportunity for local stakeholders. Beside these, there are many benefits like:
• Proper utilization of surplus biomass.
• Generation of Eco-Friendly green power.
• Reduction of CO2 emission etc.
Therefore this project has excellent environment benefits in terms of reduction of carbon emission and coal resource conservation.

Estimate of GHG abatement in tCO2 eq. 178433

Host Country Approval Status Approved

Project Owner / Proponent Rithwik Energy Systems Limited (RESL) Lanco House, 141, avenue #8, Road No.2, Banjara Hills, Hyderabad-500 034 Contact person: Mr. Satya Ravula Sreenivas, Direcctor, Tel: +91 (040) 23556029 Fax: +91 (040) 23540438 Email: rssreenivas@lancogroup.com
=============================http://www.indiaprwire.com/pressrelease/environmental-services/2010060552845.htm
a2z Infrastructure commissions Asia's largest Integrated Municipal Solid Waste Management Project in Kanpur ~ To set up India's first solid waste to power project in Kanpur; substantially powered by Refuse Derived Fuel (RDF) ~

The technology adopted by the company to produce RDF is organic and ensures that the fuel is homogeneous in nature. RDF is also considered as a better replacement for coal and has much lesser emissions than coal.
a2z Infrastructure had earlier commenced the processing and disposal of the solid waste in October 2009 and currently processes 1,500 tonnes of municipal solid waste per day from a population of 31,16,263 in the city. This project has contributed to the reduction of Green House Gas (GHG) emissions by avoiding the methane generation from the wastes at the landfills. The entire project complies with all specifications and norms of the Central Public Health and Environmental Engineering Organisation (CPHEEO). The project is the only Integrated Resource Recovery Facility (IRRF) with varied portfolio of derivatives from the garbage.

The company also produces 150 tonnes of compost per day from municipal solid waste under the brand name of Vasundhara. This is the largest quantity of compost being produced by a single MSW player in the country. The quality of compost generated is as per the FCO (Fertilizer Control Order) Amendment, 2009 and is the only government certified compost in the country. The company also plans to scale compost production to 300 tonnes per day by August, 2010
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Project Salient Features- (i) A unique project and first of its kind in the Municipal Solid Waste (MSW) sector in India, where in the entire aspects of MSW management i.e from Primary collection to disposal, including storage, secondary transportation, integrated processing and disposal are being planned together. (ii) A SPV in name of in name of Guwahati Waste Management Company Private Limited (GWMCPL) (100% shareholding of which shall be taken over by the successful developer) has been set up for implementing an integrated waste management facility including an integrated waste processing facility at Boragaon in Guwahati. The project would process 350 tonnes of waste per day. The Project Cost is estimated at Rs.(INR) 5200 Lakhs with a construction period of two years. Under "Jawahar Lal Nehru National Urban Renewal Mission (JNNURM)"Scheme of Ministry of Urban Development, GoI the Grant of Rs (INR) 3516.71 Lakhs is approved for Solid Waste Management component. Out of total approved amount, approximately Rs31Crores of the grant is available to selected developer. (iii) The integrated waste processing facility would include conversion of Municipal Solid Waste into Compost, Refuse Derived Fuel (RDF) and generation of power using RDF at the Boragaon landfill site on Public- Private-Partnership (PPP) basis.
The Scope of Selected developer will include following (iii) Segregated collection of MSW through door-to-door waste collection system in Municipal boundaries of Guwahati city. (iv) Street Sweeping and Drain de-silting activities in Municipal boundaries of Guwahati city. (v) Storage of collected segregated waste from door-to-door waste collection, street sweeping and drain desilting in Secondary Collection Points. (vi) Transportation of waste from Secondary Collection Points to Project Site. (vii) Establishment of a project facility for conversion of Municipal Solid Waste into Compost Plant, Refuse Derived Fuel (RDF) and for generation of power using RDF at the Boragaon landfill site on Public Private Partnership (PPP) basis; (viii) To develop the Sanitary Landfill Site during the Term of the project (ix) To transport and dispose the Residual Inert Matter at the Landfill Site
For More Details Contact: Chief Executive officer, Infrastructure Development Corporation of Assam Limited Mezzanine Floor, Hotel Brahamputra Ashok Guwahati (Assam) Ph-0361-2731807 (D), 2732266,2732904, (M) 91-9954714226 Fax-0361-2731840 Email: shyam.mahanta@ilfsindia.com, manoj.panigraghi@ilfsindia.com, manoj.panigraghi@gmail.com
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Jaypee's Municipal Solid Waste Processing Plant inaugurated

Jaypee Associate has set up a municipal solid waste processing plant in Chandigarh, India, in association with Municipal Corporation Chandigarh, as a public-private partnership.
The plant shall be operational after about three months when complete process gets stabilised, he informed. Set up at a cost of Rs.30 crores on a 10 acres land, the plant which is one of its kind in northern India, has the installed capacity to process 500 ton per day of municipal solid waste, which will be converted into refuse-derived fuel to be used in a thermal power plant in Ropar and a cement plant of Jaypee Group in Himachal Pradesh. Mr. Pradeep Mehra, Advisor to the Administrator, said that the leaves sheded by trees in the city, which is the greenest city in the country today, shall also be processed in the plant for converting to fuel pellets.
The plant is fully-covered to minimise exposure to atmosphere, and arrangements to spray culture on the garbage to eliminate insects, flies and odour have also been made. All critical equipment have been imported from Dopastadt Germany and the plant has been commissioned successfully in the supervision of German engineers, which has a fully-equipped laboratory, a workshop, and a fully-automatic control room, effluent treatment plant and fire safety equipment.
Notes to Editor
Jaypee Associates Limited is a Rs.4500 crore company that has set up in Chandigarh, the north India's first municipal waste processing plant at a cost of Rs.30 crore, in association with the Municipal Corporation Chandigarh.
All critical equipment i.e. primary shredder, secondary shredder, and ballistic separator have been imported from world renowned M/s Dopastadt Calbe Gmbh, Germany
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Jaiprakash Associates Ltd

63, Basant Lok
Vasant Vihar
New Delhi -110 057
India
Tel: 91/1126141540
URL: http://www.jilindia.com
================http://www.pbsj.com/Contact_Us/Pages/default.aspx
Bioreactor Landfills

PBS&J is very familiar with a wide range of leachate treatment technologies, including recirculation, in which leachate is transferred from the bottom of the landfill to the top. We have been closely involved with organizations that are refining the process of leachate recirculation to create landfills that are "bioreactors," using leachate and other sources of liquid to maximize the decomposition process and thereby extending the life of a landfill.

Leachate Evaporation and Cotreatment

Landfills that collect and flare their landfill gas have an opportunity to use this energy to economically manage leachate via evaporation. PBS&J assists landfill owners in evaluating the cost-effectiveness of this disposal alternative and in implementing leachate evaporation systems. PBS&J also offers experience in cotreating leachate with other wastewaters, including domestic wastewater and septage.
Comprehensive Services

PBS&J provides comprehensive leachate management services, including:

* Leachate collection system design
* Leachate quality and quantity characterization
* Leachate permitting services
* Negotiation assistance with receiving utilities
* Treatment/pretreatment facility design
* Leachate evaporation
* Leachate recirculation and bioreactor landfill design
* Storage and truck loading facilities
* Construction administration
* Start-up assistance
* Operations and maintenance services
———–http://www.mswmanagement.com/march-april-2009/gas-leachate-management.aspx
Tony Maxson is a client manager with the Cornerstone Environmental Group, an engineering consulting, and field service company serving the solid waste industry. He also chairs a bioreactor committee for SWANA.
=====http://www.compost.org/pdf/sheet_6.PDF
THE COMPOSTING PROCESS : Leachate Management
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