苇浆CEH漂白废水的毒性及毒性排放负荷  

Toxicity and toxicity emission load of reed pulp CEH bleaching effluents

作　　者：方战强[1] 李友明[2] 陈中豪[2] 

机构地区：[1]华南师范大学环境科学研究所,广东广州510631 [2]华南理工大学造纸与环境工程学院,广东广州510641

出　　处：《化工学报》2005年第6期1086-1090,共5页CIESC Journal

基　　金：国家高技术研究发展计划(2002AA647010);广东省自然科学基金(04300019);广州市科技攻关计划(2004Z3-E0431).~~

摘　　要：采用发光细菌法对苇浆CEH三段漂白废水进行了毒性研究,其中C段废水的毒性最大,其EC50为17.39%,属于强毒级别;E段、H段废水的EC50分别为163.6%、252.4%,均属于无毒级别.苇浆CEH漂白工艺总毒性排放因子(TEF)为472.021TU·m3·(吨浆)-1,其中C段废水的毒性最大,其TEF为393.88TU·m3·(吨浆)-1,约占总量的83.45%,其次是E段废水,约占10.03%,H段最小,约占6.52%.The toxicity of CEH bleaching effluents was studied with photobacteria. The toxicity of C stage was the strongest, its EC50 was 17.39%, belonging to the strongest toxicity level. The EC50 of E, H stages were 163.6% and 252.4% respectively. Both belonging to the no toxicity level. The total toxicity emission factor (TEF) of CEH was 472.021 TU&middotm3&middott-1. The TEF of C stage was 393.88 TU&middotm3&middott-1, about 83.45% of the total toxicity emission factor. The TEF of E and H stages was 10.03% and 6.52% respectively.

关 键 词：发光细菌 毒性 漂白废水 毒性排放负荷 

分 类 号：X17[环境科学与工程—环境科学] TQ92[轻工技术与工程—发酵工程]