【摘要】 以佛山沙口水厂北江水源水为进水,考察了活性炭吸附(GAC)和臭氧-生物活性炭(O3-BAC)两种深度处理方法对氨氮的去除效果。结果表明:在低氨氮浓度下,GAC和O3-BAC对氨氮的平均去除率均为40%,最大去除率均为74%,BAC处理后的出水中三氯甲烷浓度较GAC的出水浓度低,而GAC处理成本低于O3-BAC,建议优先采用GAC工艺;在高氨氮浓度时,预氯化条件下如果控制沉淀池出水余氯≤0.1mg/L,则可以采用O3-BAC工艺除氨氮,适宜的氨氮浓度范围是0.59～0.62mg/L。更多还原

【Abstract】 Ammonia nitrogen removal for Foshan Water Plant by both advanced treatment of GAC and O3-BAC was investigated.It was shown that,at low ammonia nitrogen concentration,average ammonia nitrogen removal rate both by GAC and O3-BAC was 40%;the maximum removal rate was 74%;chloroform concentration in effluent after treating by O3-BAC was lower than that by GAC,while treating cost by GAC was lower than that by O3-BAC.It is recommended first to adopt GAC technique,if controlling residual chlorine in effluent from sediment tank to be less than 0.1mg/L;O3-BAC process can be adopted for ammonia nitrogen removal,suitable scope of ammonia nitrogen concentration is 0.59～0.62mg/L.更多还原