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Monday, September 22, 2014

DAIRY ETP ONE MLD CAPACITY UASB BHOLA BABA DAIRY ALIGARH

DAIRY EFFLUENT TREATMENT PLANT (ETP) ONE MLD CAPACITY.BHOLA BABA DAIRY ALIGARH, 2007

TREATMENT FLOW CHART: DAF, UASB FOLLOWED BY ASP & FILTERS

Ms Bhole Baba Milk food Industries Ltd. is situated at khair road, Aligarh

The Dairy  handle about 10-lac litre of milk every day. Depending on the season, major differences occur in the quantities of milk received from cooperative milk federation and in the use of butter, butter oil and milk powder. The value added products manufactured will be Casein,Milk Protien Concentrate,Lactose-Both Food &Pherma,Demineralised Whey Protien,Whole Milk Powder,Skimmed Milk Powder, & White Butter In Bricks Form, with future planning to produce processed Cheese/Mozerella.

Generation of Waste Water:

Waste water is generated mainly from Receiving Station, Bottling plant, Cheese Plant, Butter Plant, Casein Plant, Condensed Milk Plant, Dried Milk Plant, Ice Cream Plant, Water Softening units, Cooling towers, Bottle and can washing sections and Various CIP systems,
Normally it is Cleaning of floors, equipment, etc., and domestic waste from the dairy and staff quarters.

The unit will release an amount of estimated 10-lac litre of effluent every
BASIS & DESIGN DATA:
The designing of the plant is based on the basis of parameters of generated effluent from similar type of plant, which engaged in processing of milk and manufacturing Pure Ghee & Milk powder.
CHARACTERISTICS OF GENERATING EFFLUENT WATER:
The values of incoming wastewater at ETP is as under:
S.No.
Parameter
Unit
Value
1.      
pH

                        6.0 – 10.5
2.      
Total Suspended Solids
Mg/l
                1500.0 – 2000.0
3.      
B.O.D.
Mg/l
                1500.0 – 1800.0
4.      
C.O.D.
Mg/l
                2500.0 – 3500.0
5.      
Oil & Grease
Mg/l
                   150.0 – 250.0
6.      
Rated capacity of ETP
KL/Day
                            1,000.0




What is Upflow Anaerobic Sludge Blanket?
Upflow anaerobic sludge blanket, or UASB, is a form of anaerobic (oxygen-free) digester used in wastewater treatment. It is a methane-producing digester which uses an anaerobic process and forming a blanket of granular sludge and is processed by anaerobic microorganism.
UASB was developed in 1970s by Letinga in the Netherlands. It is essentially a suspended growth system in which proper hydraulic retention time (HRT) and organic loading rate (OLR) is maintained in order to facilitate the dense biomass aggregation known as granulation.
In the UASB process, the whole waste is passed through the anaerobic reactor in an upflow mode, with a hydraulic retention time (HRT) of only about 8-10 hours at average flow. No prior sedimentation is required. The anaerobic unit does not need to be filled with stones or any other media; the upflowing sewage itself forms millions of small "granules" or particles of sludge which are held in suspension and provide a large surface area on which organic matter can attach and undergo biodegradation. A high solid retention time (SRT) of 30-50 or more days occurs within the unit. No mixers or aerators are required. The gas produced can be collected and used if desired. Anaerobic systems function satisfactorily when temperatures inside the reactor are above 18-20°C. Excess sludge is removed from time to time through a separate pipe and sent to a simple sand bed for drying.

The design of UASB pond is a function of:
§  COD input of wastewater
§  Flow of wastewater
§  Organic loading rate
§  Hydraulic retention time

These are the 4 top applications of the UASB reactors:
o    Breweries and beverage industry
o    Distilleries and fermentation industry
o    Food Industry,Dairy, Slaughter Houses.
o    Pulp and paper
Together, these four industrial sectors account for 87% of the applications. However, the applications of the technology are rapidly expanding, including:
1.      treatment of chemical and petrochemical industry effluents
2.      textile industry wastewater
3.      landfill leachates
4.      Conversions in the sulfur cycle and removal of metals.

BHOLA BABA DAIRY GAS PRODUCTION & POWER GENERATION:

STREAM –I :

Process Flow= 900 KLD having COD 3300ppm

Influent COD@ 3300 ppm = 2970 Kg
COD removed in a day (60% reduction) = 1782 kg

Bio gas produced @ 0.1 cu mtr per kg of COD removed = 178.2 cu mtr per day.

Capacity of gas holder:
Provide a gas holder of 200 cu mtr capacity.

POWER GENERATION:
The bio gas produced in UASB process should be utilized for production of electric power. The amount of electric power generated shall be as under:
Bio Gas production = 178.2 cu mtr /day
Methane content (65.75%) = 117.16 cu mtr
Calorific value =28.9 MJ/N.cu mtr
Energy content 117.16x28.9x273/(273+30)=3050.85 MJ/Day
Generator efficiency--- 30%
Electricity generated =0.3x3050.85x1000000/3600x1000
                                                = 254.23
Electric power generated = 254.23x0.04167=10.59 kw  say 10 kw 
                                     = 1.25x 10= 12.5 kva.

STREAM –II :

Mother Liquor= 100 KLD having COD 3,28,000 ppm will be fed to the UASB reactor separately from the 900 kLD flow.

Influent COD@ 3,28,000 ppm = 32800 Kg
COD removed in a day (60% reduction) = 19680 kg

Bio gas produced @ 0.1 cu mtr per kg of COD removed = 1968 cu mtr per day.

Capacity of gas holder:
Provide a gas holder of 2000 cu mtr capacity.

POWER GENERATION:
The bio gas produced in UASB process should be utilized for production of electric power. The amount of electric power generated shall be as under:
Bio Gas production = 1968 cu mtr /day
Methane content (65.75%) = 1293.96 cu mtr
Calorific value =28.9 MJ/N.cu mtr
Energy content 1293.96x28.9x273/(273+30)=33692.92 MJ/Day
Generator efficiency--- 30%
Electricity generated =0.3x33692.92x1000000/3600x1000
                                                = 2807.74
Electric power generated = 2807.74x0.04167=116.99 kw  say110 kw 
                                     = 1.25x 110= 137.5 kva.

TOTAL KW= 10+110 = 120 KW

We can go for a gas engine of capacity 65 KW  If any gas is left , it will be flared or supplied to staff quarters. Before the gas can be supplied, it has to be scrubbed in a scrubber.
Capacity of gas holder:

Provide a gas holder of 2200 cu mtr capacity.


CLARIFIER

UASBR


PANEL BOARD

DAF AND INTAKE

FILTERS

SCRAPPER IN CLARIFIER

FILTERS

DIFFUSERS IN AERATION TANKS

AIR BLOWER

AERATION TANKS

GAS PIPES IN UASBR

OPENING IN UASBR


GAS HOLDER

BIRDS EYE VIEW OF THE PLANT




FLARE STACK FOR GAS FLARING

LABORATORY ROOM



VIDEO OF THE PLANT
  
Our Project photo and Video in our facebook page https://www.facebook.com/envoprojects


                                                         Some Of the UASB Projects


NAME OF COMPANY
SCOPE OF WORK
Year
HMA FROZEN FOOD EXPORTS,AGRA
SLAUGHTER HOUSE ETP  WITH UASB,450KLD
2007
AL HAMD FROZEN FOODS, ALIGARH
ETP PROJECT, 200 KLD UASB
2004
Bhola baba Dairy Ind Limited,Aligarh
1 MLD ETP with UASB         
2007
SARASWATI SUGAR MILLS,HARYANA
Suger mill ETP Project,UASB,500KLD
1998
Namaste India Dairy, Kanpur, UP
1MLD DAIRY ETP Project with UASB
2010
Malhotra Gelatine and Bones,Unnao
Rendering plant ETP Project with UASB,1MLD
2010
AOV Exports, Unnao,UP
Slaughter House ETP Project with UASB,750KLD
2010
Mash Agro Pvt Ltd, Unnao
Slaughter house ETP with UASB, 1 MLD
2013
Rustam Foods, Unnao, UP
Slaughter house ETP with UASB, 1 MLD
2013
Al Laham Food Exports,Khurja,UP.
Slaughter House ETP with UASB,750 KLD
2014
Al  Huda Frozen Foods, Khurja
Slaughter House ETP with UASB,750 KLD
2014
Al Halal Foods (Link Lock Company),Aligarh
Slaughter House ETP with UASB,1 MLD
2016
Al Ammar Exports, Aligarh
Slaughter House ETP with UASB,600 KLD
2016
Agrotec Foods Ltd, Kanpur
Food processing waste, 200 KLD,UASB
2015
Bholebaba  Dairy,Kanpur
500KLD DAIRY ETP Project with UASB
2016


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