Cleaner Production Auditing Assessment Method Study And Application

Being as the "pollution source control" model and creative idea, Cleaner Production (CP) is widely employed. Cleaner Production Auditing (CPA), with the analysis and evaluation of current and arranged production activities in enterprises, is an effective tool of CP. Its aim is to find out the stages in production that do not meet the needs of CP in enterprises, and therefore search for solutions to solve the problems, in order to realize CP. It is the precondition of CP in enterprises.The present study was focused on CPA, with discussion of industry Cleaner Production Evaluation (CPE) and CPE indicator system in enterprise. Water utilization rate was used as the reference indicator of CP level, and a model of relationship among water drainage, wastewater treatment and water recycle was founded for quantitative description of the connection between fresh water supply and water-demand meet in reality. The model was used in Hangzhou area, parameters were got through register, and compare with the figures in China was done. It showed that water recycle use rate was not high in Zhejiang province and CP base wais weak, so there was large potential. CPE indicator system in enterprises was based on total process analysis, and it included raw material indicator, product indicator, pollute drainage indicator and management level indicator. The evaluation system was founded in 4 demonstration factories.Through CPA, environmental and economic benefit was achieved in enterprises. CPA projects analysis showed that management level of enterprise affected CP level greatly and waste recycle were important measures to realize CP. Drawbacks of persistent cleaner production was analysed and suggestions were given.The innovations of the present study was the found of quantitative description in industry and enterprise. CPA was carried out in recycled paper-making, printing and dyeing, bearing, wood industries. The result was analysed and the drawbacks was gained, and the aim of the study was to provide reference of CPA in Zhejiang province.