洸府河入湖口人工湿地污染物去除特征  

POLLUTANTS REMOVAL CHARACTERISTICS OF ESTUARY CONSTRUCTED WETLAND OF GUANGFU RIVER

作　　者：王良杰 高奔 文湘华[2] 宋永会[1] 马慧 WANG Liang-jie;GAO Ben;WEN Xiang-hua;SONG Yong-hui;MA Hui(State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of EnvironmentalSciences, Beijing 100012, China;School of Environment, Tsinghua University, Beijing 100084, China;Jining Environmental Protection Bureau, Jining 272100, China)

机构地区：[1]中国环境科学研究院环境基准与风险评估国家重点实验室,北京100012 [2]清华大学环境学院,北京100084 [3]济宁市环境保护局,山东济宁272100

出　　处：《环境工程》2019年第4期74-79,共6页Environmental Engineering

摘　　要：分析了2017年9月—2018年6月,洸府河入湖口人工湿地的运行情况。结果表明:COD、TN、NH_3-N和TP的各月平均出水浓度均达到GB 3838—2002《地表水环境质量标准》Ⅲ类标准;其中,出水COD未出现超标天数,其余3项指标均存在不同程度超标天数。对于COD和TN,在各月进水浓度相差较大时,进水浓度对去除率的影响较大;温度对去除率的影响不明显。2017年12月—2018年6月,湿地对COD、NH_3-N、TN和TP的削减量分别为45. 13,1. 02,20. 65,0. 40 t/月。但夏季6月的NH_3-N平均去除率为负值,可能是由于未收割的植物在湿地中腐烂成为内源污染源;在温度快速升高时,污染物释放速度加快。建议在湿地管理中,重视湿地植物的收割与妥善处置。This paper analyzed the performance of estuary constructed wetland of Guangfu River from September 2017 to June 2018.The results showed that the average monthly effluent quality of COD, ammonia nitrogen, total nitrogen, and total phosphorus from the wetland could meet the quality requirements of the class Ⅲ Environmental Quality Standards for Surface Water (GB 3838-2002) in China, including COD of the effluent met the standard quality every day, but the other three indexes exceeded the standard values sometimes with different frequencies.As for COD and total nitrogen, when the monthly average influent concentration varied greatly, the removal rate was largely influenced by the influent concentrations but was not significantly influenced by temperature.From December 2017 to June 2018, the COD, total nitrogen, ammonia nitrogen and total phosphorus were reduced by 45.13, 1.02, 20.65, 0.40 t/month respectively by wetlands.However, the average removal rate of ammonia nitrogen in June was negative, which might be the results of accelerated pollutants release from the un-harvested plants which had been rotten in wetland as endogenous pollution sources when the temperature rose rapidly in June.Harvesting and disposing the plants in time were suggested for the wetland management.

关 键 词：人工湿地 内源污染 氨氮 温度 污染物削减 

分 类 号：X703[环境科学与工程—环境工程]