EFFECTS OF CHLORINATED BENZENES ON AQUATIC BIOCOMMUNITY IN SIMULATION STABILIZATION POND SYSTEM
几种氯苯对模拟氧化塘系统生物群落的影响

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.