不同填料对阶梯式人工湿地降解农业废水的影响  

Effect of different matrix in steps constructed wetland system for degradation of agricultural waste water

作　　者：裴亮[1] 孙莉英[1] 梁晶 麦荣幸 PEI Liang1, SUN Liying1, LIANG Jing2, MAI Rongxing1(1. Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences ,Beijing 100101, China; 2. Xinhua Hydropower Company Limited, Beijing 100070, China.)

机构地区：[1]中国科学院地理科学与资源研究所陆地水循环及地表过程重点实验室,北京100101 [2]新华水力发电有限公司,北京100070

出　　处：《水资源与水工程学报》2018年第1期232-235,241,共5页Journal of Water Resources and Water Engineering

基　　金：国家高技术研究发展计划项目(2011AA100507);国家自然科学基金青年基金项目(41471229;51109197);国家科技支撑计划课题(2012BAD08B02;2013BAC02B02)

摘　　要：针对人工湿地填料对农业废水污染物降解效果不稳定的问题,采用阶梯式人工湿地方法对农业废水进行降解,选择钢渣、石灰石、麦饭石、竹炭粒4种常见填料用于阶梯式人工湿地,研究了它们对农业废水中主要污染物的降解能力。试验结果表明:当污水停留时间(HRT)为7 d时,对污水中COD、浊度、TP、TN和NH3—N的降解率,钢渣分别为79.7%、88.7%、83.5%、74.4%和81.2%,石灰石分别为73.6%、70.7%、55.2%、50.1%和56.9%,麦饭石分别为81.3%、89.7%、78.6%、79.2%和81.5%,竹炭粒分别为67.6%、88.5%、68.3%、69.2%和73.2%,出水水质基本达到城镇污水处理厂污染物排放标准(GB 18918-2002)的一级A标准的要求。In view of the unstable effects of artificial wetland system on the degradation of agricultural wastewater pollutants,a steps constructed wetland system was used to degrade agricultural wastewater.Four kinds of common stuffing slag,such as steel slag,limestone,maifanite and bamboo charcoal,were selected as the steps constructed wetland matrix. Their degradability to the main pollutants in agricultural waste water was studied. The results showed that when the water retention time（ HRT） was seven days,the degradation rates of COD,turbidity,TP,TN and NH3—N in waste water were 79. 7%,88. 7%,83. 5%,74. 4% and 81. 2% for steel slag,respectively. For limestone,the degradation rates of COD,turbidity,TP,TN and NH3—N were 73. 6%,70. 7%,55. 2%,50. 1% and 56. 9%,respectively. And for maifanite were 81. 3%,89. 7%,78. 6%,79. 2% and 81. 5%,respectively. And for bamboo charcoal were 67. 6%,88. 5%,68. 3%,69. 2% and 73. 2%,respectively. The indicators of the final effluent basically met the requirements of the A level of discharge standard of the urban sewage treatment plant pollutant discharge standard（ GB 18918-2002）.

关 键 词：农业废水处理 阶梯式人工湿地 钢渣 石灰石 麦饭石 竹炭粒 

分 类 号：X703[环境科学与工程—环境工程]