摘要
采用在缺氧/好氧膜生物反应器(A/O-MBR)内投加聚合氯化铁进行同步生物脱氮和化学除磷的方法处理城镇生活污水。结果表明,在水力停留时间为5.8h、泥龄为20d、聚合氯化铁投量(以全铁计)为10~15mg/L的条件下,系统对COD、NH3-N、TN和TP的平均去除率分别达到86.2%、98.8%、52%和91%;在进水水质正常的条件下,出水各项指标均能达到《城镇污水处理厂污染物排放标准》(CB18918-2002)的一级A标准。
Poly-ferric chloride (PFC) in the anoxic/oxic membrane bioreactor (A/O -MBR) was adopted for simultaneous nitrogen and phosphorus removal from domestic wastewater. The results show that the average removal rates of COD, NH3 - N, TN and TP reach 86.2%, 98.8%, 52% and 91% respectively under the conditions of HRT 5.8 h, SRT 20 d and PFC dosage ( in terms of total iron) 10 to 15 mg/L. The effluent quality satisfies the first level A criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002).
出处
《中国给水排水》
CAS
CSCD
北大核心
2010年第11期68-70,共3页
China Water & Wastewater
基金
江苏省太湖专项(BM2007159)
国家水体污染控制与治理科技重大专项(2008ZX07101-003)
关键词
城镇生活污水
A/O—MBR
同步脱氮除磷
municipal domestic sewage
A/O -MBR
simultaneous nitrogen and phosphorus removal