【摘要】 研究了MAP法和电化学法对煤气洗涤废水中氨氮脱除效果,实验结果表明:对于MAP法,在pH=9.5~10,n(NH4+)∶n(PO43-)∶n(Mg2+)=1∶1.5∶1.5条件下;对于电化学法,选择投氯比为1∶5,总输入电流强度在1.7~2.0 A时,两种工艺均可将其氨氮含量脱除至15 mg/L以下,达到国家污水综合排放标准(GB8978-1996)一级。更多还原

【Abstract】 This paper studied the ammonia nitrogen removing effect from the coal gas washing wastewater by using MAP law and the electrification research method.The experimental results indicated:regarding the MAP,under the pH=9.5～10,n(NH+4)∶n(PO3-4)∶n(Mg2+)=1∶1.5∶1.5;regarding the electrification research method,the choice throws the chlorine compared to is 1∶5;total input current intensity when 1.7～2.0 A,two crafts may its ammonia nitrogen content removing to 15 mg/L below,which achieves the national sewage synthesis emission standard(GB8978-1996)first-level.更多还原