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采用活性无烟煤滤池与高压增氧系统联用技术,研究其处理排涝期原水氨氮与亚硝酸盐氮的效果,并与常规砂滤池进行了对比。结果表明,活性无烟煤滤池在排涝期对氨氮与亚硝酸盐氮的去除效果优于砂滤池,对氨氮的平均去除率为63.56%,当待滤水氨氮≤2.5mg/L时,活性无烟煤滤池出水氨氮均能小于0.5mg/L;对亚硝酸盐氮的平均去除率为73.88%。运行3年的活性无烟煤滤池在排涝期的处理效果与往年相比有所下降。
The technology of active anthracite filter combined with high pressure oxygen system was used to study the effect of treating ammonia nitrogen and nitrite nitrogen of raw water in drainage period and compared with conventional sand filter. The results show that the active anthracite coal filter drainage effluent is better than the sand filter in the ammonia nitrogen and nitrite nitrogen removal, the average removal rate of ammonia nitrogen is 63.56%. When the ammonia nitrogen to be filtered ≤ 2.5mg / L, the active anthracite Ammonia nitrogen can be less than 0.5mg / L for effluent from the filter and 73.88% for nitrite. Active 3 years of active anthracite filter in the drainage period of the treatment effect compared with previous years decreased.