Implementation of Biological Effluent Treatment Plant for Waste Water Treatment in the Wet Process Textile Industry "Wash & Wear Ltd of Natural Group".

Paper Published Link: http://www.ijsred.com/volume2/issue5/IJSRED-V2I5P88.pdf Abstract Industrial wastewater treatment describes the processes used for treating wastewater that is produced by industries as an undesirable by-product. After treatment, the treated industrial wastewater may be reused or released to a sanitary sewer or to surface water in the environment. The textile dyeing and washing industry plays an important role in the economic growth as well as the environmental sectors of Bangladesh. Effluent Treatment Plants or (ETPs) are used by leading companies in the pharmaceutical and chemical industry to purify water and remove any toxic and non-toxic materials or chemicals from it. These plants are used by all companies for environment protection. Effluent Treatment Plant (ETP) is one of the most important & prominent part of Textile dyeing / Wet process industry. In Bangladesh many industrial units are located near the banks of the rivers and they do not use Effluent Treatment Plant (ETP) for wastewater treatment. As a consequence, industrial units dump effluent directly into the river water without consideration of the environment. To combat ecological degradation it is mandatory for textile dyeing / wet process industry to install an effective effluent treatment plant (ETP). This study, focused on investigating the best possible solution to install the most economic and effective effluent treatment plantof textile dyeing / wet process industries in Bangladesh. None of the methods except biological method can satisfy discharge standard. Combined physico-chemical and biological method is considered as the most efficient method. The discharged water is properly treated in the ETP plant to ensure that the discharged waste water is not harmful for environment.Important water quality parameters like pH, TSS, BOD, COD and presence of metals were measured by testing samples. The samples were collected from effluent water of a renowned and international buyer recognized industry named Wash & Wear Ltd in Ashulia, Savar, Bangladesh. The results show that all the water quality parameters are within the permissible limits. Keywords—Waste water, Effluent treatment plant (ETP), Biological treatment, efficiency, water quality, Lab type ETP, BOD, COD, PH, Environment, etc.

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