[1]徐金兰,张 晶,刘爱萍,等.挂膜沸石覆盖层持续抑制底泥氨氮释放的影响因素研究[J].西安建筑科技大学学报(自然科学版),2016,48(04):579-584.[doi:10.15986/j.1006-7930.2016.04. 020]
　XU Jinlan,ZHANG Jing,LIU Aiping,et al.Sustainable inhibition of ammonium release from sediments[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2016,48(04):579-584.[doi:10.15986/j.1006-7930.2016.04. 020]
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挂膜沸石覆盖层持续抑制底泥氨氮释放的影响因素研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
48
期数:
2016年04期
页码:
579-584
栏目:
出版日期:
2016-08-31

文章信息/Info

Title:
Sustainable inhibition of ammonium release from sediments
文章编号:
1006-7930(2016)04-0579-06
作者:
徐金兰; 张 晶; 刘爱萍; 李 凯
（西安建筑科技大学环境与市政工程学院，陕西 西安 710055）
Author(s):
XU Jinlan;  ZHANG Jing;  LIU Aiping;  LI Kai
( of Environmental and Municipal Engineering, Xi’an Univ. of Arch. &Tech., Xian 710055, China)
关键词:
沸石类型氨氮释放; 持续抑制; 覆盖密度; 再生
Keywords:
zeolite type;  sediment ammonium release;  sustainable inhibition;  coverage density; zeolite regeneration in situ
分类号:
X55
DOI:
10.15986/j.1006-7930.2016.04. 020
文献标志码:
A
摘要:
研究了沸石类型、覆盖密度及上覆水氨氮浓度对挂膜沸石层持续抑制底泥氨氮释放的影响．结果表明：沸石类型直接决定挂膜沸石覆盖层能否持续有效抑制底泥氨氮释放，孔径在8 nm左右的沸石有效降解氨氮的微生物，具有较强的再生能力，通过不断削减底泥氨氮23~30 mg）和上覆水氨氮持续抑制底泥氨氮释放上覆水氨氮浓度控制在0.4 ~0.8 mg/L达到地表水III类水体水质标准．挂膜沸石持续抑制氨氮覆盖密度和上覆水氨氮浓度，覆盖密度上覆水氨氮浓度mg/L时，覆盖挂膜沸石持续氨氮释放地表水III类水体水质标准
Abstract:
The effect of zeolite type, coverage density and ammonium concentration of overlying water on sustainable inhibition of ammonium release from sediments and improvement of water quality by capping bio-zeolites were studied. The results showed that the sediment ammonium release can be sustainably inhibited depending on zeolite types directly. The surface of zeolite F1 whose aperture was at around 8 nm was conducive to adsorption of microorganism which can degrade ammonium efficiently, so bio-zeolite F1 has strong ability of regeneration in situ. Through continuous cutting sediment ammonium (sediment ammonium reduction amount of each round was 23~30 mg) and overlying water ammonium (reduction amount was up to 18 mg) ,bio-zeolite F1 can suppress the sediment ammonium release?sustainably so that the concentration of ammonium in the overlying water was 0.4 mg/L ~0.8 mg/L in capping bio-zeolite F1 system, to meet surface water quality standard of class III. In addition, the sustainable inhibition of ammonium release by bio-zeolite F1 was affected by coverage density and ammonium concentration of overlying water. The release of ammonium was inhibited sustainably so the concentration of ammonium in the overlying water met the surface water quality standard of class III when the coverage density of bio-zeolite F1 was greater than 1.46 kg/m2 and ammonium concentration of overlying water was lower than 4.28 mg/L

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备注/Memo

备注/Memo:
收稿日期：2015-10-06 修改稿日期：2016-08-12
基金项目：国家自然科学基金项目（51378413；51208416）
作者简介：徐金兰（1973?），女，教授，博导，主要研究方向为石油污染土壤修复. E-mail：xujinlan@xauat.edu.cn
更新日期/Last Update: 2016-10-30