填料配比及环境因素对人工湿地去除氨氮效果的影响

Effect of filling ratio and environmental factors to artificial wetland removal ammonia nitrogen

选择火山灰、沸石和无烟煤作为人工湿地除氨氮填料，对不同比配的填料进行污水除氨氮吸附实验，筛选出最优填料配比。并对最优配比方案进行了pH值、有机质对去除氨氮的影响实验。实验结果证明火山灰、沸石和无烟煤的配比为1：1：2时处理污水中的氨氮效果最好。pH值在4～7范围内去除氨氮效果理想，有机质草酸对去除氨氮影响不大、但有葡萄糖存在时去除氨氮效果明显降低。

To select the volcanic ash, zeolite and anthracite as artiifcial wetland removal ammonia nitrogen iflling, it is carried out that experimental of sewage different proportion of ifller for removing ammonia nitrogen adsorption. Selected optimal ratio of ifller, made an experiment for pH value, the inlfuence of the organic matter to remove ammonia nitrogen. Experimental results show that the volcanic ash, zeolite and anthracite coal ratio for 1：1：2 ammonia nitrogen in the sewage treatment effect is best. The pH value in the range of 4-7 ammonia nitrogen removal effect is ideal, organic matter oxalic acid to remove ammonia nitrogen had little impact, but the presence of glucose effect of removing ammonia nitrogen reduced obviously.