【Author】 Zhong Shaofen1,Liu Yuping1,Li Yangping1,Cai Zhuodi2(1.Dongguan Cleaner Production Center,Institute of Engineering & Technology,Dongguan University of Technology, Dongguan 523808,China; 2.Dongguan Cleaner Production Center,Chemical Industry and Engineering Society of Dongguan,Dongguan 523808,China)