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Adsorption and kinetics of ammonia-nitrogen from leachate onto fly ash
Author(s): ZENG Zhengzhong, WANG Jianbo, GUO Haolei, PAN Yu, NAN Zhongren
Pages: 644-
649
Year: 2010
Issue:
5
Journal: China Environmental Science
Keyword: fly ash; leachate; ammonia-nitrogen; adsorption kinetics; effective diffusion coefficient;
Abstract: 为有效提高生活垃圾填埋场渗沥液的C/N,增加渗沥液的可生化性,应用粉煤灰吸附处理实际渗沥液中的氨氮,分别研究投加量,温度,pH值对吸附效果的影响,并在最佳吸附条件下对吸附过程进行动力学分析.结果表明,反应180min时,吸附达到平衡,氨氮去除率达到63.44%,单位吸附量为8.7428mg/g,可有效地调节渗沥液的营养比例,有利于生物处理作用;动力学数据拟合吸附过程符合伪二级动力学方程;动边界模型...
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