摘要
针对小城镇污水的水质特点及处理难点,开发了一套集生物流化床和斜板沉淀工艺于一体的污水处理一体化装备。研究了该装备在设计参数下的运行效果及运行参数对去除效果的影响。结果表明,在进水流量为3 m3/d、气水比为5:1、回流比为200%的条件下,处理COD、NH_4^+-N、TN、TP含量分别为(78~244)、(9.0~24.3)、(22.7~55.7)、(3.4~6.4)mg/L的小城镇污水,平均去除率分别可达到88.6%、84.3%、46.7%、52.0%。该装备的最佳运行参数为:水力停留时间HRT 8 h、气水比5:1、回流比300%。该装备具有结构紧凑、占地少、运行管理简便、除污能力强等优点,非常适合小城镇污水处理。
According to the characteristics of small town wastewater treatment , an integrated wastewater trea tment equipmen t including biological fluidized bed and incl ined plate sedimentation was designed. The removal efficiency of the equipment and the influence of operation parameters were studied in this paper. The influent concentrations of C0D,NH4^＋-N, TN and TP were 78 to 244 mg/L, 9. 0 to 24. 3 mg/L, 22. 7 to 55. 7 mg/L and 3. 4 to 6. 4 mg/L respectively. Under the conditions of influent 3 m^3/d, gas-water ratio 5 ： 1 and reflux ratio 200% , the average removal rates of COD, NH4^＋ -N, TN and TP were 88. 6% , 84. 3% , 46. 7% and 52. 0% respectively. HRT of 8 h, gas-water ratio 5 ： 1 and reflux ratio 300% were the be st operation parameters. The integrated equipment has the advantages of compact st ructure, less land occupat ion, easy management and high efficiency, so it is sui table for small town wastewater treatment.
作者
江竹青
李果
毛圆翔
邓若愚
陈宇
唐立展
何强
JIANG Zhu-qing LI Guo MAO Yuan-xiang DENG Ruo-yu CHEN Yu TANG Li-zhan HE Qiang(a. Key Laboratory of Three Gorges Reservoir Region＇s Eco-Environment , Ministry of Education b. Facul ty of Urban Construction and Environmental Engineering , Chongqing University, Chongqing 400045 , Chin 2. School of Chemical ＆ Environmental Engineering, China University of Mining ＆ Technology（ Beijing） , Beijing 100083, China)
出处
《环境影响评价》
2017年第3期66-69,共4页
Environmental Impact Assessment
基金
"国家水体污染控制与治理科技重大专项":小城镇污水处理成套设备产业化与整装集成应用(2015ZX07319-001)
关键词
小城镇污水
污水处理
一体化装备
生物流化床
small town wa stewater
wastewater treatment
integrated equipment
biological fluidized bed
