Sectors Served
TEXTILE INDUSTRY
In textile industry, main source of waste water is from processes like Desizing, Scouring, Bleaching, Souring, Dyeing and Printing.
Waste water generated from Dyeing and printing process is heavily coloured
Whereas from other mentioned process is less coloured.
Treatment offered for textile effluent is in following stages:
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Primary treatment Oil, colour and suspended solids
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Biological treatment to reduce BOD, COD etc.
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Tertiary treatment comprising Pressure & Activated Carbon filters to make effluent suitable for reuse.
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Reverse osmosis for Zero discharge.
ENGINEERING INDUSTRY
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Coolant recovery system has been designed to eliminate the contaminants in coolant - which are mainly tramp oil & bacteria - without altering the properties of the original emulsion. This enables increase in coolant cycle times, thereby reducing both procurement of fresh oil as well as frequency of water generated.
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Upon continuous usage in the machine, soluble cutting oils need replacement, primarily due to offensive odor (due to biological degradation) and accumulation of different types of particulate matter, each having a deterrent effect on the coolant performance and discharge life.
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We provide a combination of various stages of treatment for such effluents which includes treatment by physical, chemical, biological methods followed by pressure filtration, disinfection etc. Such treatment helps in recovery of useful by-products and reuse of treated water to maximum extent.
DYES & CHEMICALS
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Manufacture of Organic, Inorganic chemicals and dyes gives rise to pollutants, which are toxic, are difficult to biodegrade, can be harmful to flora and fauna etc. For example Mercury in chlor alkali industry, arsenic in the fertilizer manufacturing industries, red TNT and yellow TNT in the manufacture of high explosives etc.
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Upon continuous usage in the machine, soluble cutting oils need replacement, primarily due to offensive odor (due to biological degradation) and accumulation of different types of particulate matter, each having a deterrent effect on the coolant performance and discharge life.
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Wastewater generated from such industries are treated in a series of stages comprising of Neutralization, chemical treatment involving Physico-chemical process for suspended solids and colour removal followed by biological treatment and final polishing of treated water before discharging into water body.
FOOD AND DAIRY
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Food & Dairy industries are among the fastest growing industries which contribute considerable pollution to environment. Waste water source from food industries is from various stages of process, floor and equipment wash water etc. Waste water from dairy is mainly from bottle washing, can and tanker washing, floor washing, processing etc.
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As the wastewater from food and dairy industry has high BOD, COD and Oil, it is treated by aerobic or anaerobic process or a combination of both. Aerobic treatment may be activated sludge process with extended aeration, aerated lagoons etc and anaerobic treatment may involve anaerobic filter, upflow anaerobic sludge blanket etc.
PHARMACEUTICALS INDUSTRIES
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Pharmaceutical manufacturing plants generate diverse characteristics of wastes during manufacturing, maintenance and housekeeping operations.
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Typical waste streams include spent fermentation broths, process liquors, solvents, equipment wash waters, spilled materials, off-spec products, and used processing aids
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Pharmaceutical effluent consists of high organic contents with high COD.
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Thus a series of treatment is provided which involves pH neutralization, chemical treatment involving Physico chemical process, biological treatment which can be aerobic or anaerobic or a combination of both, tertiary treatment involving adsorption by activated carbon, reverse osmosis (RO) etc.
PULP & PAPER
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The manufacture of paper from pulp is a water-intensive industry. Waste water in the form of black liquor is generated from chemical pulping process, from pulp washing machines, deinking waste water having high concentration of dissolved organic matter etc.
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Waste water is subjected to colour removal, physical, chemical and biological methods, or combinations of the above, depending on the nature of waste water.
SUGAR MILLS
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Being a seasonal industry, Sugar industry presents peculiar problems for pollution control. Waste water generation is mainly from washing of sugar canes, juice extraction process, vacuum filters, carbonation, sulphitation process etc.
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Effluent from sugar mills consists of high COD and BOD. Treatment involves plain settling, biological treatment using anaerobic digestion, treatment in lagoons, activated sludge process etc.
AUTOMOBILES
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Automobile Industry is one of the major pollution contributor. Effluent is generated from various units which can be treated effectively in a combination of different stages of treatment.
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Treatment generally involves screening, chemical treatment involving physico chemical treatment, biological treatment followed by tertiary treatment.
METAL & STEEL INDUSTRIES
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Various metal industries generate various characteristics of effluent. The main sources of waste water are water generated from cooling of furnaces, from wet scrubbers, from metal casting and sintering, floor washings, canteens, toilets etc.
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Treatment methodology adopted varies from industry to industry depending on the characteristics of waste streams. Effluent is treated for removal of suspended solids, destruction of phenols, removal of ammonia, recovery of byproducts etc.
