Effluent Generated at various Processes of Textile Manufacturing
Textile manufacturing involves conversion of Fibers into garments. At each process some amount of liquid is used. However, it is not that each process leads to generation of efflents. Typically coversion to yarn involves no generation of effluents. It is the sizing and processing where most of the efflent is generated which needs to be treated. Given below is a list of the processes along with the information about effluent generated.
1. Fiber Preparation and Yarn Spinning:
There is very little effluent generated in these processes.
2. Slashing/Sizing
The Effluent contains BOD, COd, metals, cleaning waste and size.
3. Weaving, Knitting and Tufting
There is very little effluent generated in these processes.
4. Desizing
The effluent contains BOD from water-soluble sizes, synthetic size, lubricants, biocides and anti-static compounds.
5. Scouring
The effluent contains disinfectants and insecticide resudes, NaOH, detergents, fats, oils, pectin, wax, knitting lubricants, spin finishes and spent solvents.
6. Bleaching
The effluent contains hydrogen peroxide, sodium silicate or organic stabilizer. The effluent also contains high pH.
7. Singeing and Heat Setting
There is very little effluent generated in these processes.
8. Mercerising
The effluent contains high pH and Sodium Hydroxide.
9. Dyeing
The effluent contains metals, salts, surfacftants, toxics, organic processing assistants, cationic material, color, BOD, sulfide, acidity or alkalinity and spent solvents.
10. Printing
The effluent contains suspended Solids, urea, solvents, color, metal, heat , BOD and foam.
11. Finishing
The effluent contains BOD, COD, suspended solids, toxics and spent solvents.
Read Also
Textile Effluent Treatment-1
Textile Effluent Treatment-2
Now that you've finished reading this post, what are you going to do? You should join the Forum.
Textile manufacturing involves conversion of Fibers into garments. At each process some amount of liquid is used. However, it is not that each process leads to generation of efflents. Typically coversion to yarn involves no generation of effluents. It is the sizing and processing where most of the efflent is generated which needs to be treated. Given below is a list of the processes along with the information about effluent generated.
1. Fiber Preparation and Yarn Spinning:
There is very little effluent generated in these processes.
2. Slashing/Sizing
The Effluent contains BOD, COd, metals, cleaning waste and size.
3. Weaving, Knitting and Tufting
There is very little effluent generated in these processes.
4. Desizing
The effluent contains BOD from water-soluble sizes, synthetic size, lubricants, biocides and anti-static compounds.
5. Scouring
The effluent contains disinfectants and insecticide resudes, NaOH, detergents, fats, oils, pectin, wax, knitting lubricants, spin finishes and spent solvents.
6. Bleaching
The effluent contains hydrogen peroxide, sodium silicate or organic stabilizer. The effluent also contains high pH.
7. Singeing and Heat Setting
There is very little effluent generated in these processes.
8. Mercerising
The effluent contains high pH and Sodium Hydroxide.
9. Dyeing
The effluent contains metals, salts, surfacftants, toxics, organic processing assistants, cationic material, color, BOD, sulfide, acidity or alkalinity and spent solvents.
10. Printing
The effluent contains suspended Solids, urea, solvents, color, metal, heat , BOD and foam.
11. Finishing
The effluent contains BOD, COD, suspended solids, toxics and spent solvents.
Textile Effluent Treatment-1
Textile Effluent Treatment-2
Now that you've finished reading this post, what are you going to do? You should join the Forum.
