几种氯苯对模拟氧化塘系统生物群落的影响

研究一氯苯，１，２，３－三氯苯及六氯苯对模拟氧化塘系统生物群落结构的影响及其净化机制。结果表明，在５．６０９５ｍｇ／ｌ的一氯苯，１．９２９２ｍｇ／ｌ的１，２，３－三氯苯及０．１３６３ｍｇ／ｌ的六氯苯实验条件下，系统中杆菌属、微球菌属及酵母菌属的种类、密度影响不明显；对浮游藻类的种、数量及叶绿素ａ的合成有明显地抑制作用，其影响大小的顺序为：六氯苯〉１，２，３－三氯苯〉一氯苯。在模拟氧化塘系统中，氯苯

EFFECTS OF CHLORINATED BENZENES ON AQUATIC BIOCOMMUNITY IN SIMULATION STABILIZATION POND SYSTEM

This paper deals with the effects of chlorobenzene (CB), 1, 2, 3-trichlorobenzene(1,2, 3-TCB) and hexachlorobenzene (HCB) on aquatic community structure (and function) in simulation 4-cell stabilization pond systems. The purification of three chlorobenzenes in systems are also discussed. The results show that the specific diversity and densities of Bacterium,Micrococcus and Saccharomyces species of microorganisms were not affected while the specific diversity, density and chlorophyll a synthesis of the algae were inhibited significantly. The inhibition order was: HCB>1, 2, 3-TCB>CB.Chlorobenzenes could be removed in high rate in the simulation pond systems. The remove rate reached as high as >99% of all 3 pollutants in effluents after 7 day retention time.Most of chlorobenzenes were emitted into the air and some were degraded by organisms and algae.