CEM India CEM India

CEM India - Abstract

 
CEM India

 
CEM India



Abstract Title: Wastewater allocation and pricing model for the efficient functioning of CETP serving a textile industrial cluster
Session Choice: Monitoring Guidelines
Presenter Name: Prof Ajit Pratap Singh
Co-authors:Mr Deepak Chaurasia
Ms Bhoomi Shah
Company/Organisation: BITS Pilani
Country: India

Abstract Information :

Industrial wastewater is approximately 18% of the global wastewater generated. The textile industry produces 20% of the global industrial wastewater effluent, which is approximately 48.79 million km3. More than half of these pollutants are added to water in the dyeing & printing processes of fabric production. Due to improper disposal methods & non-stringent policies, the pollution of river bodies is visible & its detrimental effects are felt all over the globe. Groundwater contamination & degraded environmental flows are serious problems for human inhabitants. To hold a polluting industry responsible for such pollution, it is necessary to adopt wastewater treatment methods and mechanisms for taxing industries based on the waste they generate & enforce the replenishment of water resources to meet quality standards. This paper aims at formulating a pricing mechanism based on quota allocation of effluent discharge for individual industries being served by a CETP. Using the data available for the textile industrial cluster in Balotra, Rajasthan in India, selection of a pre-treatment module before the membrane separation process has been done through Fuzzy AHP. Criteria like pollutant removal efficiency (BOD, COD, TDS), Area of plant, Sludge generated, Operation & maintenance cost have been used for pairwise comparison of 4 alternative combinations of CETP modules for textile wastewater treatment. Zero Liquid Discharge (ZLD) has been proposed after the membrane separation process. A mathematical model (part I and part II) has been formulated to ensure that discharge & concentration of effluent to be sent to CETP by member industries is manageable. A relation between concentration, flow & cost has been framed and applied. The annual inflow values of Balotra CETP have been processed using the model and the result obtained is the number of industries and their full or fractional wastewater share. This study can serve as a guide to select a pre-treatment module, calculate the maximum discharge & concentration allocation to member industries and find the O&M cost if ZLD is adopted in textile industrial CETPs.