摘要
采用活性砂过滤器对城镇污水处理厂二沉池出水进行深度处理,考察了以活性砂过滤器为深度处理工艺时,城镇污水处理厂出水水质的稳定性及其达到一级A排放标准的可能性。结果表明:活性砂过滤器的出水水质稳定,其出水的SS、TP浓度分别为(1～5)、(0.2～1.1)mg/L,优于《城镇污水处理厂污染物排放标准》的一级A标准;出水的氨氮浓度为4～8 mg/L,达到《城镇污水处理厂污染物排放标准》的一级B标准;出水的COD浓度为55～75 mg/L,接近于《城镇污水处理厂污染物排放标准》的一级B标准。可见,将活性砂过滤器作为新建或已建污水厂的深度处理工艺,可在一定程度上达到节能减排的目的。
Active sand filter was used for advanced treatment of secondary effluent from municipal wastewater treatment plants, and the effluent quality stability and the possibility of reaching the first level A standard were investigated. The results indicate that the effluent quality is steady, and the effluent SS and TP are l to 5 mg/L and 0.2 to 1.1 mg/L respectively, which arc superior to the first level A criteria speci- fied in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant. The effluent ammonia nitrogen is 4 to 8 mg/L, which reaches the first level B criteria. The effluent COD is 55 to 75 mg/L, which is near the first level B criteria. It is concluded that the energy-saving and emission reduction targets can be achieved when this filter is used as advanced treatment process in newly constructed or existing wastewater treatment plants.
出处
《中国给水排水》
CAS
CSCD
北大核心
2010年第1期57-59,共3页
China Water & Wastewater
关键词
活性砂过滤器
深度处理
节能减排
active sand filter
advanced treatment
energy-saving and emission reduction
