In any wet process house one comes across departments such as :
Bleaching
Dyeing
Printing
Finishing
In each of the above departments lot of chemicals , dyes are used in processing.At the end of any process , the drain liquor contains lot of unused chemicals , dyes and they go to a common tank.This is called effluent and it should be scientifically treated , before letting off.
That treatment is called Effluent Treatment Plant (ETP) , where there are settling tanks,flocculation tanks,filters , and final let out into a common drain.If we take certain steps from the beginning itself , we can reduce the quantity of effluent to a considerable extent.
They are :
1. Use of minimum quantity of water.Usage of water is essential , but control of consumption is also equally important.
2. Use of optimum quantity of chemicals.
3. Use of minimum,optimum quantities of dyes in the process.
So , the more control is exercised on these above three parameters , better will be the control on final effluent discharge from a processing unit.So, means less load on Effluent Treatment Plant (ETP).
Many units have their own effluent treatment plant . If they can not afford to have their own , they join in a Common Effluent Treatment Plant (CETP),where dye effluent from various units is treated and then only let off.
At any given time a ETP or a CETP is a must for any wet processing unit.
Can I now invite the comments from my friends from this area of specialisation.
Bleaching
Dyeing
Printing
Finishing
In each of the above departments lot of chemicals , dyes are used in processing.At the end of any process , the drain liquor contains lot of unused chemicals , dyes and they go to a common tank.This is called effluent and it should be scientifically treated , before letting off.
That treatment is called Effluent Treatment Plant (ETP) , where there are settling tanks,flocculation tanks,filters , and final let out into a common drain.If we take certain steps from the beginning itself , we can reduce the quantity of effluent to a considerable extent.
They are :
1. Use of minimum quantity of water.Usage of water is essential , but control of consumption is also equally important.
2. Use of optimum quantity of chemicals.
3. Use of minimum,optimum quantities of dyes in the process.
So , the more control is exercised on these above three parameters , better will be the control on final effluent discharge from a processing unit.So, means less load on Effluent Treatment Plant (ETP).
Many units have their own effluent treatment plant . If they can not afford to have their own , they join in a Common Effluent Treatment Plant (CETP),where dye effluent from various units is treated and then only let off.
At any given time a ETP or a CETP is a must for any wet processing unit.
Can I now invite the comments from my friends from this area of specialisation.
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