发光细菌法研究纸浆CEH漂白废水的毒性  

TOXICITY STUDY ON THE PHOTOBACTERIUM PHOSPHOREUM TOXICITY TEST METHOD FOR PULP CEH BLEACHING EFFLUENTS

作　　者：方战强[1] 李友明[2] 曾志勇[1] 

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510640

出　　处：《华南师范大学学报（自然科学版）》2004年第4期84-88,共5页Journal of South China Normal University(Natural Science Edition)

基　　金：国家高技术研究发展计划(863计划)资助项目(2002AA647010)

摘　　要：采用发光细菌法对纸浆CEH漂白废水进行毒性研究,其中C段废水的毒性最大,其EC50为28 83%,属于强毒级别;E段、H段废水的EC50分别为68 92%、267 9%,分别属于毒、无毒级别;其中C段的毒性排放负荷约占总废水毒性排放负荷的67 5%左右;结果表明,漂白废水的毒性排放负荷较大,约为423 92TU·m3·t(浆)-1,相当于42 93gHgCl2·t(浆)-1,对其治理不容忽视.The toxicity of CEH bleaching effluents were studied with photobacteria in this paper. The toxicity of C stage was the strongest, and its EC(50) was 2883%, belong to strongest toxicity level. The EC(50) of E and H were 6892% and 2679%, belonging to toxicity and no toxicity level respectively. The toxicity emission load of C stage was about 675% of the total toxicity emission load. The results showed that the toxicity of bleaching effluent was strong, which was about 42392 (TU·m^3/t pulp), and equivalent to 4293(g HgCl2/t pulp). Therefore the treatment of bleaching effluent could not be ignored.

关 键 词：漂白废水 发光细菌法 EC50 排放 毒性研究 治理 负荷 忽视 左右 CL2 

分 类 号：X832[环境科学与工程—环境工程] X703