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Title: Chemical processing of synthetics and blends-Impact on environment and solutions
Authors: Gandhi, R S
Keywords: Environment protection;Pollution control;Waste minimization
Issue Date: Mar-2001
Publisher: NISCAIR-CSIR, India
Abstract: Chemical processing of synthetic textiles and blends generates significant air/water pollution. Through judicious selection and optimum usage of inputs (energy, water and substances) in processing, it is possible to minimize waste/ pollution substantially. This will reduce the pollution load of an effluent to such a level at which it would be feasible to effectively operate the effluent treatment plant (ETP) and satisfy the norms of Pollution Control Boards (PCBs). Judicious se lection of inputs will also take care of ecofriendliness of finished textiles to meet the eco-Label requirement and tackle environmental problems. Waste minimization is achieved by pre-care and care during processing. Unavoidable minimum waste generated is then treated in after-care step to remove colour, toxicity and heavy metal ions to reduce the levels of total dissolved solids (TDS). COD/BOD, etc by primary/secondary/tertiary treatments before recycling the treated water. Sludge (solid waste) is disposed off by either land-filling or incineration depending on the extent of toxicity. The solutions offered aim at decreasing the hazardous character of sludge by eliminating the use of banned, red- listed chemicals/dyestuffs which have carcinogenic, allergenic and toxic characteristics.
Page(s): 125-135
Appears in Collections:IJFTR Vol.26(1-2) [March-June 2001]

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