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模拟太湖水中阿特拉津浓度突增的情况,研究了臭氧氧化、生物活性炭吸附降解及臭氧/生物活性炭联用工艺对其去除效果,并初步分析了各工艺参数的影响。结果表明,单独臭氧氧化对阿特拉津的去除率约为31%,而生物活性炭工艺的去除率则可达到73%;臭氧氧化可强化生物活性炭对阿特拉津的去除效果,两者联用对阿特拉津的去除率高达95%;破碎炭上的生物量明显高于柱状炭,针对水中阿特拉津的去除,破碎炭更为适用;臭氧/生物活性炭工艺的炭层厚度建议采用150 cm,此值可在保证阿特拉津去除效果的同时,保障出水水质安全性。
To simulate the abrupt increase of the concentration of atrazine in Taihu Lake, the effects of ozone oxidation, biological activated carbon adsorption and degradation and ozone / biological activated carbon combined process were studied, and the effects of various process parameters were analyzed. The results showed that the removal rate of atrazine by ozone alone was about 31%, while the removal rate of bioactive carbon was 73%. Ozone oxidation could enhance the removal of atrazine by bioactive carbon, The removal rate of atrazine was as high as 95%; the biomass on the broken carbon was obviously higher than that of the columnar carbon, which was more suitable for the removal of atrazine in water, and the carbon thickness of the ozone / bio-activated carbon process With 150 cm, this value ensures the effluent safety while ensuring the removal of atrazine.