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Every industry, be it in Textile, Paper, Tannery, Pharmaceutical, Distilleries etc, generates effluent. These effluents pose a serious problem if disposed into water courses or on land.
These effluents contain a wide variety of both organic and inorganic salts which when discharged with or without treatment in to surface waters or lands resulting in contamination of environment.
Hence various pollution control boards have stringent laws to monitor the surface water quality by limiting COD, BOD, pH, suspended solids, temperature, heavy metals etc. In extreme case, Zero Effluent Discharge Policy is enforced to run the industry.
UNITOP – a chemical engineering organization specializes in heat transfer designs for Evaporation & Drying makes Turn-key supplies for plants connected with Zero Effluent Discharge Systems. |
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EFFLUENT FILTRATION EQIPMENT
It is necessary to clean it off any fibers / insolubles, so that they don’t interfere the working of the Evaporation Plant by clogging the small sized devices such as Spray Nozzles, Pump Impellers, Heat Exchanger tubes etc.
HEAT RECOVERY SYSTEM
Effluents, if at high temperature pose problems during Effluent Treatment Plant, because of high BOD. Hence, Effluent has to be cooled. Heat Recovery System, when provided, not only cools the Effluent but also produces Hot Water suitable for Process / Boiler use.
CHEMICALS RECOVERY:
With proper studies, Effluent containing expensive Chemicals can be isolated and can be sent to a separate Evaporation System to recover Chemicals like: Caustic Soda, Sodium Sulfate, Soda Ash, Glycerine etc.
With such recovery plants, not only we save Treatment Costs but also earn profits by recovering these expensive chemicals. Hence, such plants have highly attractive payback periods. |
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