Study On The Reduction Plan Of Chlor-Alkali Wastewaster In A Chemical Plant

With the rapid development of the national economy, the PVC industry in Chinahas been in the rapid development accompanied with more intense competition ineach other. Although this industry technology is improving, the chloric alkalineenterprise production process produces a large amount of chemical wastewater, howto treat and recycle wastewater is a big puzzled problem for a long time for theseenterprises. Due to the cost of energy and raw material prices rising, the chlor-alkaliproduction costs increases; the waste water discharge is facing more strict control forthe national and local law of the environmental protection is enhanced, Therefore, thedomestic chlor-alkali manufacturers make every attempt to develop wastewater reusetechnology through reducing sewage emissions and decreasing production cost inorder to improve the environmental and social benefit. the study on the deeperwastewater treatment and resource utilization technology of chlor-alkali enterprise hasimportant significance.This paper is accomplished through the massive materials consulting and fieldinvestigation, on the basis of full investigation and chlor-alkali production processanalyses, the paper includes drawing production sketch, analyzing every workshop’sinterior raw material consumption quantity, water supply and discharge, watercirculating and pollutant characteristics of wastewater on the basis of water balanceanalysis; summarizing the treatment and deeper treatment technologies of thechlor-alkali and PVC wastewater; putting forward measures of water saving;investigating wastewater discharge node, monitoring waste water quality and quantityand characteristics of pollution, the wastewater reduction scheme is proposedaccording to the principle of repeated use and wide range reuse of water; an economicand effective wastewater reuse technology plan study is put forward for higherrecovery value wastewater...