title: Evaluation and modification of existing CETP.
abstract: For the development of small and medium scale industries in various Gujarat industrial development corporation (GIDC) areas and in clusters of industrial areas, the common effluent treatment plant (CETP) has always been found advantageous in view of cost of treatment, operation and maintenance and disposal of residues being produced. In small scale industrial units due to market requirement, product changes and quantity enhancement are taking place. Due to such changes, the effluent characteristics are continuously changing which affects performance of CETP. Hence it has been found necessary to study continuously the performance, evaluation and modification in the working of the CETP. This paper contains a case study of one of the existing CETP near Baroda which is facing the problem of disposal of treated effluent in which the important parameters like COD, BOD, Suspended Solid, NH3-N and oil and grease were analyzed. Based on the characterization of wastewater, the various treatability studies were carried out on CETP wastewater. To comply with disposal standard prescribed by Effluent Channel Project Ltd.(ECPL)* and Gujarat Pollution Control Board (GPCB) for discharge of industrial effluent into channel, various treatments in form of ammonia stripping, coagulation and flocculation, biological treatment, filtration and chlorination are suggested.
authors.forename: Bhavisha
authors.initials: B
authors.lastname: Sharma
authors.forename: A R
authors.initials: AR
authors.lastname: Shah
mesh_terms: D002947:Cities; D007194:India; D014865:Waste Disposal, Fluid; D062065:Wastewater / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification
chemical_list: D062065:Wastewater; D014874:Water Pollutants, Chemical