COMPARISION AMONG ASP, MBBR, SBR AND MBR

 

COMPARISION AMONG ASP, MBBR, SBR AND MBR 

 

Technology	ASP	MBBR	SBR	MBR
Aeration Unit	Needs a Big Aeration Tank with surface aerators or diffused aeration.	Floating media is used providing a surface for microbial growth	Operates in batch where waste water is added to the reactor, treated and discharges.	Normal biological treatment like MBBR
Settling Unit	Uses a Common circular Settling Tank	A tube settler is used for high sludge removal rate.	NIL	Membrane filtration process in place of Settler.
Efficiency	Average Efficiency	High Treatment efficiency. Robust against fluctuation flow and load	Flexibility in Treatment. High Nutrient removal	Superior effluent quality due to membrane barrier.
Area	Largest Area	Most compact system	Requires less area than ASP	50% less area then SBR
Uses	Used in Municipal waste water treatment plant	Used in Decentralized waste water treatment plant and Industries.	Suitable for smaller STP. It has some constraints in Municipal waste water treatment plant	Used in Decentralized waste water treatment plant and Industries, especially when plant is to be designed for zero discharge.
Cost	Medium Cost EASY TO MAINTAIN	Lowest capital and maintenance cost, EASY TO MAINTAIN	High maintenance cost	High Energy Load, Maintenance cost 20% lower than SBR

 

ALUM dosing AND POLY DOSING IN ETP

 ALUM DOSING AND POLY DOSING IN ETP

                                         DOSING FOR ETP

Bleaching powder dosing for disinfection in waste water treatment plant

Bleaching powder dosing for disinfection in waste water treatment plant

Sources of Informations given below
Manual  http://cpheeo.gov.in/upload/uploadfiles/files/Chapter%206-9.pdf

1. https://www.epa.ie/pubs/advice/drinkingwater/Disinfection2_web.pdf
2.http://jeb.co.in/journal_issues/200710_oct07/paper_04.pdf

 The pilot scale disinfection units located at two different UASBR based STPs have been selected for this study. One of these pilot plants has been constructed after 27 MLD UASBR based STP, Noida (Uttar Pradesh, India) and is based on chlorination using calcium hypochlorite (either slurry form or liquid high test hypochlorite, HTH) with a capacity of 2 million liter per day (MLD). The other 1 MLD DHS-biotower pilot plant, developed by Prof. H. Harada (Machdar et al., 1997), is based on fixed film aerobic process and has been constructed after 40 MLD UASBR based STP, Karnal (Haryana, India). These STPs, based on UASBR technology, consists of preliminary treatment (Screen and Grit Chamber), UASBR and final polishing pond (Fig. 1). A schematic diagram of the pilot plants at Noida and Karnal is presented in Fig. 2 and 3 respectively. The chlorination unit of 2 MLD consists of a sump, mixing unit and baffled contact chamber (3m x 7m) and a specific dose of chlorine was mixed with a separate pipe. The 1 MLD DHS-biotower based on fixed film aerobic process consists of a sump and reactor having plastic rectangular sheets onto which triangular prism polyurethane foams were tiled. Raw sewage after UASBR treatment was supplied to the chlorination unit and DHS-biotower
In case of chlorination unit, initially the bleaching powder was used as a disinfectant from day 1 to day 48 and later on it was found that there was no residual chlorine in the bleaching powder, so the bleaching powder was replaced with calcium hypochlorite as disinfectant after 48th day. The dose of disinfectant was 5 mgl-1 from day 1 to day 16 and was increased to 20 mgl-1 from day 20. The contact time for the reaction between wastewater and disinfectant was 30 min throughout the study.
 Results and Discussion Reduction of fecal coliform: To achieve good disinfection, the contact time and dose are extremely important. A longer contact time is required for complete disinfection to occur. As per Lindsay (2004), a contact time of 30 minutes is a minimum, and if the dose remains constant, the contact time may necessitated to be increased at low temperatures or higher pH to obtain the same level of disinfection. Typical chlorine doses for municipal wastewater disinfection are about 5-20 mgl-1 with a contact time of 30 to 60 min (Lazarova et al., 1999). During this study, 5 and 20 mgl-1 of disinfectant doses for a fixed contact time of 30 min was applied. It was observed that a dose of 20 mgl-1 was very effective for the reduction in indicator microorganism (fecal coliforms). Initially when a dose of 5 mgl-1 was used, the reduction in fecal coliforms count was less than 90%. It may be attributed to the fact that the minimum dose required for the killing of microorganism was not sufficient as there was high chlorine demand due to the presence of high concentration of organic matter and suspended solids in the UASBR effluent. The average fecal coliforms count was reduced from 3.58 x 105 (± 1.02 x 105 ) MPN/ 100ml to nil at a dose of 20 mgl-1 and 30 min contact time (Fig. 4a). Thus the results shows that almost 100% removal of fecal coliforms has been observed after chlorination; however at certain days i.e., from day 7 to day 14 and from day 44 to day 53 (Fig. 4a), the number of fecal coliforms present in the wastewater effluent after disinfection was increased. It could be explained on the basis of type of chemical used for the chlorination. During this period, bleaching powder was used. Later on it was found that the chemical used at the plant does not have any residual chlorine. Chlorination was switched to the fortified brand of the calcium hypochlorite, high test hypochlorite (HTH). It indicated that chlorination was very effective in the removal of fecal coliforms if the regular operation and maintenance (O and M) is ensured.

How to calculate area requirement for a WETLAND STP

How to calculate area requirement for a WETLAND STP

PHILOSOPHY BEHIND ENVO PROJECTS

PHILOSOPHY BEHIND ENVO PROJECTS

Saleem Asraf Syed Imdaadullah, Founder, Syed Envo Protect (I) Pvt Ltd in the year 1994 & ENVO PROJECTS in the year 2001https://yourstory.com/2009/07/saleem-asraf-syed-imdaadullah-founder-syed-envo-protect-i-pvt-ltd/

ITS NOT POSSIBLE TO FOLLOW ALL THE THINGS THAT OUR PROPHET (Peace be upon him PBUH) HAD DONE, HE IS MODEL FOR ALL PEOPLE IN THIS WORLD.

When I was 10-12 yrs old, i heard Maulana Madani (Senior) RA say that if somebody follows just one sunnah steadfastly throughout his life thats sufficient for him. And pray for me that I can do something for the betterment of this world before I die.... Otherwise there is no meaning of my existence in this world. Doctors are making peoples health better...engineers are making living conditions better.... Alims are making spiritual lives better.

The philosophy behind my work in environmental engineering

NOW HAVE I DONE SOMETHING OR STILL DONT HAVE ANY GOAL IN LIFE.no, I have found in Quran majeed myself that the world is a gift from Allah and nobody has the right to destroy it… .So we don't have any right in making our rivers into drain (read yamuna river,bhorolu river), polluting our air with our car exhaust, littering the greens with solid waste…. I am trying my best in this regard …after forming ENVO.

PREAMBLE OF ENVO

Nature is a gift to us . No individual or organisation has the right dto utilise its resources in such a way that damage or inconvenience is caused  to  people of society . we all have a social responsibility to protect and preserve a clean and green environment. The goale of profit maximisation and customer satisfaction should be surbordinate to the social need and responsibilities. The present concern has been brought about by the health of humans, living being, tree , structures, monuments and all other things.It was repeatedly mentioned in the Qur'an: Forbidding from spoiling the earth after Allah (Exalted and Almighty) has created it suitable and well prepared for the successive human generations. It announced that Allah does not like spoiling or those who spoil in life, this includes spoiling environment, polluting it or being aggressive with it. Also it is forbidden to abuse it in any way that would make it deviate from the purpose of Allah created it for. This would be like showing ingratitude to Allah, that would cause vengeance from Allah, and becomes like a warning to those who perpetrated this, that severe penalty will almost come upon them as what happened before to the `Aad and the Thamud and those who came after them.
"Who did transgress beyond bounds in the land (in the disobedience of Allah) and made therein much mischief. So your Lord poured on them different kinds of severe torment. Surely your Lord is Ever-Watchful." (89:11-14) Islam urges its followers to have great concern for everything created by Allah, for it is part and parcel of "submission to Allah" to show reverence to all what the Almighty Allah created.

We cant be all rounder like our Prophet (PBUH),but atleast we can excel in one field and serve humnanity as he did.

May Allah accepts my hard work and bestow his blessings on me and forgive me for the major and minor SINS I make in every steps

My own DREAM---"ENVO" : and to have its presence in every state of India. (Your time is limited, so don't waste it living someone else's life. Don't let the noise of others' opinions drown out your own inner voice.have the courage to follow your heart and intuition. They somehow already know what you truly want to become. Everything else is secondary.

 My Passion: My work. of water treatment, to clean the world gifted by god of the mess humans created.  ( Don't lose faith. I'm convinced that the only thing that kept me going was that I loved what I did. You've got to find what you love. And that is as true for your work as it is for your lovers. Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work. And the only way to do great work is to love what you do. If you haven't found it yet, keep looking. Don't settle. As with all matters of the heart, you'll know when you find it. And, like any great relationship, it just gets better and better as the years roll on. So keep looking until you find it. Don't settle.)

There is still a lot to learn, I try to learn from everybody and atleast one new thing every day : Stay Hungry. Stay Foolish

The World Only Cares About What It Can Get from You.

Change your attitude towards life. Do not look for perfection and CONTROL in everything in life. I understood that my livelihood (RIZQ)  cant be  taken away by  anyone.  Put your  best  efforts in what you do and than leave the result to ALLAH. I have plan but Allahs plan is much much better than mine. I have firm belief in ALLAH.  

During this journey many people came and left me. I thank all of them for their contribution for my growth. They are destined to be with me for that particular period. This is Allah’s plan.

Always sleep with a clean heart. I know many of us get wronged throughout the day or have gotten wronged in the past. Forgive. Not only forgive, but forgive and forget. Dont even hold a grudge against that person in your heart. Keep your heart completely pure.Forgive brothers and sisters before you sleep each night. this is one of the practices of the greatest people ever to live and this is how we will reach those highest levels of spirituality.

Forgiveness is good for your own well being, its about giving yourself permission to let go of the painful past. Forgiveness is not something we do for that particular toxic person,it is something we do for ourselves so we can move on to a better future.We forgive,not because that toxic person deserves it,but because we deserve peace, for a pure heart.
Read quran ,Sura 24:22 , sura 2:263 , sura3:133-134  , sura7:199, sura 15:85, sura 45:14

Ending this article with a hadith
Narrated by Abdullah ibn Amr, Prophet Muhammad (PBUH) stated:"Show mercy and you shall be shown mercy.Forgive others and you shall be forgiven by Allah."(Musnad Ahmad)

LOVE HUMANITY IRRESPECTIVE OF RELIGION, LOVE ANIMALS, TREES AND ALL OF GODS CREATIONS. IF YOU CAN NOT LOVE AND ADMIRE GODS CREATION, HOW CAN YOU THINK ABOUT ADMIRING THE GREATNESS OF GOD. 

PRIMARY EFFLUENT TREATMENT PLANT (PETP)

PRIMARY EFFLUENT TREATMENT PLANT (PETP)

PARAMETERS OF TREATED WATER for HOTELS , HOSPITALS and other industries currently accepted by Pollution Control Board of Assam. (PCBA)

The parameters of the treated effluent water will be  as under meeting norms of Pollution control Board (PCBA) .
pH Between 5.5 to 9
TSS (Total suspended solid below 150 mg/liter
BOD( Biological oxygen demand) less than 30 mg/liter
COD(Chemical oxygen demand) less than 250 mg/liter
Oil & grease less than 10 mg/liter

IF WASTE WATER FROM HOTEL, HOSPITAL EXCEEDS THE ABOVE VALUE, ONE PETP IS TO BE INSTALLED FOR TREATING WASTE WATER AND BRING IT WITHIN LIMITS MENTIONED ABOVE.

Our Consultancy & Supervision scope:

We offer our  work on consultancy basis for the Hotels ,hospitals, restaurants, wedding hall, ccar service station, tea garden and other industries. . All the civil & execution work will be done by the respective Hotel  , under our guidance from initial survey to the final report submission to the Pollution Control Board of Assam (PCBA).

1.Preparation of  drawing as per site condition for each location of hotels , it’s size , their  complexity and need of the hotel   . Thus there is no common solution for all hotels if Customized concept is adopted ,  So will  provide customized system plant for each site. Also, at various sites there are exiting septic tanks and other tanks ,pipes etc which can be adjusted in our proposed system which will reduce construction cost.

2 . We shall Provide a Flow Chart & project  report for submission to the PCBA

3.We will supervise the progress of the civil works during construction time of the ETP.

4.We will provide you a list of  dealers from where you can buy the pump , blower and chemicals.

5..We will train your staff for first 3 days how to run the plant & provide a maintenance manual for the plant

6. We will provide a first  water test report to be submitted to pollution board

7. We shall help in filling of the Documents to be submitted to the PCBA . All the legal fees & dues needs to be cleared by the client . The extra cost for Consent to operate or NOC is not included in the Consultancy

DATA REQUIRED:

a)Quantity of waste water generated liter per day

b) Waste Water test report .

.

TREATMENT METHOD OF PETP:

Chemical pre treatment followed by filtration

Flow Chart of PETP:

IN-Screen—Oil Trap---Collection Tank---Primary Sedimentation--— ------Disinfection Tank—Pump---Filter ----Out to drain

Details of different units of the proposed system

A)CHEMICAL TREATMENT OF WASTE WATER IN PETP

a)    Screen   :Waste water will flow through these drains by gravity flow from the inlet manhole. To remove large floating objects , bar screens and oil traps are provided inside the incoming drain itself .

b)    Collection tank: All waste water will be collected here .Lime and Alum will be added here and mixed by air bubbling from a air blower..Waste water will flow by gravity to the next unit.

c)    Primary Sedimentation tank(PST): The chemical sludge will be settled here. Waste water will flow by gravity to the next unit. Sludge is removed by sludge pump to sludge drying beds.

d)Disinfection tank : Disinfection is done here with bleaching powder to remove colour,  bactaria and other contaminants and  than pumped  to the pressure sand filter and finally released to drain.

what is a wastewater treatability study and how does it work?

 what is a wastewater treatability study and how does it work?

A wastewater treatability study is a study or a test that tells us if the wastewater can be treated and how it needs to be treated. If the study is done correctly, it will clearly identify the problem you’re seeing in your wastewater stream, helping ensure the proper treatment solutions are considered.

Let’s just say, for example, that a plant processes metals—maybe a metal plating facility like a chrome plater or zinc plater—and all of the sudden, they realize residual metals are present in their wastewater, which are prohibited to discharge in just about any receiving watershed or municipality.

The company performing the study would start by taking a sample of their wastewater, analyzing it (called a characterization study) so they can identify what they think is the problem through analytical means.

Once the treatability study is complete and the problem is identified, sometimes a plant will opt to test different solutions by initially using some conventional technologies to remove the contaminants from the solution.

Once they establish that they can removed the contaminants successfully, they will then scale up the scope of the technology to sufficiently handle the full scale of the process. 

keep in mind that there is usually more than one treatment available for your problem. A reputable company will perform the treatability study and recommend different solution for you.

Constructed wetlands for sewage treatment

A traditional septic tank or DEWATS will be  the primary means of treatment. The effluent from the septic tank / DEWATS can then flow to secondary  constructed wetlands and even tertiary treatments with a combination of reeds, typha, and sphagnum.

constructed wetlands for sewage treatment

Sewage Treatment all over the world requires large amounts of energy and/or chemicals to treat the waste water.There are a number of solutions to lessen the waste water load while at the same time producing a net benefit. Systems that include the collection of urine to be used as fertilizer and methane digesters that create fuel from feces [see ‘Biogas).Another solution — constructed wetland filtration systems for homes, communities, and industrial sectors — are efficient in both processing ability and energy requirements.The economic and environmental benefits of constructed wetlands filtration systems for small scale use are recognized in chemical- and odor-free treatment, creation of habitat, low setup/maintenance costs of the system, as well as a number of other natural benefits.

Source of the Article : http://permaculturenews.org/2012/03/22/constructed-wetlands-treat-waste-water-with-weeds/

In-ground installations are usually of the horizontal flow variety. This means that effluent enters at one end of a bed and flows, horizontally, under the surface of the bed (gravel, sand, etc). The micro organisms clean the water as it flows through, eventually exiting at the opposite end of the container as treated water.

To install a basic bed, simply dig an appropriate sized hole for your application and fill it with a liner to prevent any waste-water from seeping into the environment. The beds should be deep enough to accommodate at least 30cm of water depth. Fill the bed with gravel, sand, etc. Another few centimeters of substrate above this 30cm area is suggested to accommodate the variance in the water levels that result from rains or heavy use of the waste-water system.

The level of the water can be allowed to rise higher than the substrate, and can even be maintained to create a pond like environment by allowing the water to flow on the surface rather than in the subsurface.

Container

Vertical flow systems instead introduce effluent through the top of the container. Gravity then feeds the effluent down through various layers of filtration-assisting substrates. The container traps oxygen and aids in breaking down ammonium. Vertical flow units can process stronger effluents in a smaller footprint than horizontal flow units. Combination systems can be installed to achieve even higher levels of filtration.

REED

Phragmites australis is one of the main wetland plant species used for phytoremediation water treatment.

Waste water from lavatories and greywater from kitchens is routed to an underground septic tank-like compartment where the solid waste is allowed to settle out. The water then trickles through a constructed wetland or artificial reed bed, where bioremediation bacterial action on the surface of roots and leaf litter removes some of the nutrients in biotransformation. The water is then suitable for irrigation, groundwater recharge, or release to natural watercourses. 

https://en.wikipedia.org/wiki/Constructed_wetland

Micro organisms

The microscopic life in the bed is a main processor of the pollutants. While living in the substrate and oxygen-rich root systems, these micro organisms metabolize the chemicals in the effluent, effectively mineralizing them. With longer processing times, even hard to remove pollutants such as polycyclic aromatic hydrocarbons (PAH), polychlorinated biphenyl (PCB), dyestuffs, amines and glycols can be treated. At the end of the first Gulf War, oil polluted sands in Kuwait were treated with oil metabolizing organisms that live on the roots of the plants in the area.

Reed

The 4m tall common reed, Phragmites australis, is most commonly used in these wetland filter systems, mimicking the natural habitat of flood plains and estuaries. They have the most extensive root system for micro organisms to colonize. This root system increases the porosity of the substrate in which it is grown, resulting in a patchwork of aerobic, anoxic, and anaerobic conditions. There are many other varieties of reed that can thrive in just about any climate. During the growing season the chemical-resistant reeds themselves can account for about 15% of the pollutant removal, taking up and concentrating pollutants. Take proper care to dispose of the tainted reeds; avoid feeding them to livestock and the compost heap if pollutant levels are high.

Reeds can be good for finishing off the treatment of effluent to help reach regulatory levels, or to deal with seasonal use. Off season use, as in a caravan park, can mitigate runoff entering sensitive water courses while guests are using the property whilst still allowing the treated water to eventually reach its water course.

When establishing the reed bed, weeding will likely be required until the reeds have completely colonized the bed. Ideally 70% or more of the bed will be covered with reeds. The other 30% should include some combination of sphagnum or typha for best results. After 3-5 seasons the reeds can be cut back and allowed to regrow from their rhizomes.

Article source:
https://sidcgl.com/phytorid-waste-water-treatment/

Phytorid – Waste water treatment
NGAD – Septic Solution
Ekogea – Odour Control

Waste Water TreatmentExisiting Methods

Activated Sludge process
Conventional Process
MBBR Process
RBR Process
SBR Process

Complex Process
Skilled People
Machines
Chemicals
Electricity

We have a unique process PHYTORID
No electricity required
No Chemicals required
No machines involved in process

Components of PHYTORID system

Processes
Sedimentation
Bacterial action
Filtration
Adsorption
Precipitation
Decomposition
Nutrient uptake
Vegetation system

Phytorid Details

Various Plant Types

Water Hyacinths	Eichhornia crassipes
Forage Kochia	Kochia spp
Poplar Trees	Populus spp
Willow Trees	Salix spp
Alfalfa	Medicago sativa
Cattail	Typha latifolia
Coontail	Ceratophyllum demersvm L
Bullrush	Scirpus spp
Reed	Phragmites spp.
American pondweed	Potamogeton nodosus
Common Arrowhead	Sagittaria latifolia

ADVANTAGES

• Cost-effective
• Operation and maintenance expenses are negligible.
• Minimum electricity requirement
• Smaller footprint (Retention time: Typically less than 24 hrs.)
• Facilitates recycle and reuse of water
• No foul odor and No Mosquito Nuisance.
• Tolerates fluctuations in operating conditions such as flow, temperature and pH

Cost of Operation for typical STP Activated Sludge Process

• Electricity-4000/ Month
• Chemicals-1500/ Month
• Maintenance-
• Operator-
• Sludge Removal and –Disposal

Electricity +Chemicals=5500/month
5500*12= 66000/ Annum

When we operate this Plant for 7 years   
66000 *7=462000/-
All calculations made for 10KLD Plant

Green points

• Best Adoptable technology for in-situ treatment and reuse of waste water
• Phytorid Technology carryout on-site treatment and reuse of grey water up to 95%, which would attract total of 5 credits on Indian Green Building Certification (IGBC).

Aesthetics

Phytorid installation

Typical Sewage Treatment Plant

Performance of PHYTORID for urban waste

Pollutant	Performance (% removal)
Total suspended solids	75 – 95
Biochemical oxygen demand	70 – 80
Chemical oxygen demand	60 – 75
Total nitrogen	60 – 70
Phosphate	50 – 60
Fecal coliform	85 – 95

Treated water quality will meet the  specified norms of CPCB/MPCB for water reuse

Product Water quality

• Treated water complies to the regulations laid down by MPCB/CPCB(Table IV fresh water category) to reuse the water for the purpose of discharge, gardening agriculture etc.

APPLICATION
PHYTORID system is useful for treatment of waste water in following applications

1. Domestic wastewater (including decentralized Municipal waste water treatment)

• Colonies, Airports, Commercial complexes, Hotels
• Open drainage
• Cleaning of nallah water

2. Fish Market waste (waste water)

3. Slaughter House Waste

4. Fish pond discharges

5. Municipal Landfill leachates

6. Several other applications

Inaugurated by
Shri Suresh Shetty(Honbl’e State Minister)

Medical Education Higher & Technical Education On World Environment Day 5th June, 2006 at Kalina Campus, Mumbai University

Nalla and Treatment Scheme

• Floating matters removal
• No treatment in terms of TSS, BOD, N, P, FC and TC
• Only banking done
• Plant species were placed on the soil near the periphery

After Implementation