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经臭氧—生物活性炭与膜组合工艺处理 ,将自来水浊度从 0 .3～ 0 .8NTU降至 0 .1NTU以下 ;高锰酸盐指数由 1.5～ 4mg/L降至 0 .5～ 1.5mg/L ,去除率达 6 8.0 % ;UV2 54 由 0 .0 7～ 0 .12cm- 1降为 0 .0 0 9～ 0 .0 2 0cm- 1,去除率为 83% ;TOC由 2 4 0 0～ 2 90 0 μg/L降为 70 0～ 16 0 0 μg/L ;Ames试验由阳性转变为阴性 ;将 0 .1～ 0 .4 5mg/L的亚硝酸盐氮和 0 .0 3～ 0 .35mg/L的氨氮降至检测限以下 ,同时出水硝酸盐氮浓度≤ 10mg/L ,说明该系统具有良好的运行效能。
By ozone - biological activated carbon and membrane combination process, the tap water turbidity decreased from 0 .3 ~ 0. 8NTU 0. 1NTU below; permanganate index from 1.5 ~ 4mg / L down to 0.5 ~ 1.5mg / L, the removal rate reached 6 8.0%; UV2 54 was reduced from 0.07 ~ 0.12cm-1 to 0.09 ~ 0.020 cm-1, the removal rate was 83%; TOC was 2400 ~ 2 90 0 μg / L decreased to 70 0 ~ 16 0 0 μg / L; Ames test turned from positive to negative; 0 .1 ~ 0.45mg / L of nitrite nitrogen and 0. 03 ~ 0 .35mg / L ammonia nitrogen fell below the detection limit, while nitrate nitrogen concentration effluent ≤ 10mg / L, indicating that the system has good operating performance.