Position: Home > Articles > Effect of purification system combined with electrical floatation, electrochemical oxidation and constructed wetland on rural black water with different pollution loads
Journal of Fujian Agriculture and Forestry University(Natural Science Edition)
2023,52
(4)
533-539
电气浮—电化学氧化—人工湿地系统对不同污染负荷下农村黑水的净化效果
作 者：
王铁运;郑淑君;王妍;刘云根
单 位：
西南林业大学生态与环境学院
关键词：
电气浮;电化学氧化;人工湿地;污染负荷;农村黑水
摘 要：
以 3 种污染负荷的农村黑水为研究对象,研究电气浮—电化学氧化—人工湿地系统对不同含量氨氮(NH4+-N)、总氮(TN)、正磷(PO43--P)、总磷(TP)和化学需氧量(COD)的净化效果.结果显示:(1)系统对不同污染负荷下农村黑水的净化效果存在显著差异(P<0.05),在ρ(NH4+-N)= 27.18 mg·L-1、ρ(TN)= 32.48 mg·L-1、ρ(TP)= 3.60 mg·L-1、ρ(PO43--P)= 3.59 mg·L-1、ρ(COD)= 95.34 mg·L-1的情况下,系统对农村黑水的净化效果较好,出水TN和COD的质量浓度达到国家一级排放标准;(2)系统对 3 个污染负荷下黑水中NH4+-N的去除率分别达到 80.81%、61.25%和 62.02%,对TP的去除率分别达到 65.92%、52.49%和 55.84%;(3)在 ρ(NH4+-N)= 60.29 mg·L-1、ρ(TN)= 60.69 mg·L-1、ρ(TP)= 7.71 mg·L-1、ρ(PO43--P)= 7.55 mg·L-1、ρ(COD)= 196.59 mg·L-1 的情况下,系统对 PO43--P 和 COD 的去除率分别达到 52.71%和66.07%.结果表明系统微环境指标、内部基质表面特征和元素含量受到污染负荷的影响,污染负荷对系统处理效率的影响显著.
译 名：
Effect of purification system combined with electrical floatation, electrochemical oxidation and constructed wetland on rural black water with different pollution loads
作 者：
WANG Tieyun;ZHENG Shujun;WANG Yan;LIU Yungen;College of Ecology and Environment, Southwest Forestry University;Yunnan Key Laboratory of Ecological Environment Evolution and Pollution Control in Mountainous Rural Areas;
关键词：
electrical floatation;;electrochemical oxidation;;constructed wetland;;pollution load;;rural black water
摘 要：
To investigate the effect of purification system combined with electrical floatation, electrochemical oxidation and constructed wetland on treating rural black water, water quality indicators, including ammonia nitrogen(NH_4~+-N), total nitrogen(TN), positive phosphorus(PO_4~(3-)-P), total phosphorus(TP) and chemical oxygen demand(COD), were evaluated before and after the purification treatment and under 3 pollution loads. The results showed that the pollutant removal effect of the purification system varied significantly among different pollution loads. The system showed good effect on black water with pollution load [ρ(TN)=32.48 mg·L~(-1), ρ(TP)=3.60 mg·L~(-1), ρ(PO_4~(3-)-P)=3.59 mg·L~(-1) and ρ(COD)=95.34 mg·L~(-1)], and the contents of TN and COD in the effluent met the national first-degree emission standard. The removal rates of NH_4~+-N for the system reached 80.81%, 61.25% and 62.02% under the 3 different pollution loads, and those of TP were 65.92%, 52.49% and 55.84%, respectively. Under pollution load[ρ(NH_4~+-N)=60.29 mg·L~(-1), ρ(TN)=60.69 mg·L~(-1), ρ(TP)=7.71 mg·L~(-1), ρ(PO_4~(3-)-P)=7.55 mg·L~(-1) and ρ(COD)=196.59 mg·L~(-1)], the removal rates of PO_4~(3-)-P and COD arrived at 52.71% and 66.07%, respectively. Pollution load exerted significant influences on microenvironment index as well as the surface characteristics and element content of the internal substrate, and thus the efficiency of the treatment system.
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