生物炭固定菌强化人工湿地对低温污水中氮素去除的模拟研究

doi:10.11934/j.issn.1673-4831.2018.05.011

生态与农村环境学报 ›› 2018, Vol. 34 ›› Issue (5): 463-468.doi: 10.11934/j.issn.1673-4831.2018.05.011

生物炭固定菌强化人工湿地对低温污水中氮素去除的模拟研究

袁敏¹, 刘晓冰², 唐美珍², 杨月伟²

天津市环境保护科学研究院, 天津 300191;
2. 曲阜师范大学南四湖湿地生态与环境保护重点实验室, 山东曲阜 273165

收稿日期:2017-05-27 出版日期:2018-05-25 发布日期:2018-05-25
通讯作者: 唐美珍 E-mail:tmzh0816@163.com
作者简介:袁敏(1979-),男,湖南衡阳人,高级工程师,博士,主要从事水污染修复研究。E-mail:wetland@163.com
基金资助:
国家自然科学基金（31700433，31672314）

Study on Removal of Nitrogen From Low Temperature Sewage by Pseudomonas flava WD-3 Immobilized Biochar in Constructed Wetland

YUAN Min¹, LIU Xiao-bing², TANG Mei-zhen², YANG Yue-wei²

1. Tianjin Academy of Environmental Science, Tianjin 300191, China;
2. Key Laboratory of Nansihu Lake Wetland Ecosystem and Environment Protection, Qufu Normal University, Qufu 273165, China

Received:2017-05-27 Online:2018-05-25 Published:2018-05-25

摘要/Abstract

摘要：

以从冬季南四湖湿地底泥中分离筛选出的黄假单胞菌（Pseudomonas flava WD-3）为微生物载体，采用水稻秸秆炭化制备的优质生物炭为吸附剂，将生物炭固定化Pseudomonas flava WD-3投加到垂直流人工湿地污水处理系统中，探讨不同菌剂接种量对低温污水中氮素的去除情况；并采用简化的Monod动力学模型对人工湿地污水中污染物的去除过程进行模拟。结果表明，在水力停留时间5 d时，生物炭固定化Pseudomonas flava WD-3对人工湿地低温污水中氮素的去除效率有显著提高，且对人工湿地污水中TN、NH₄⁺-N、NO₃^--N和NO₂^--N的降解符合Monod动力学模型。

关键词: 氮, 人工湿地, Pseudomonas flava WD-3, 生物炭, 动力学模型

Abstract:

A kind of psychrophile strain named pseudomonas flava WD-3 was isolated from the sediments of Nansihu Lake in winter, and it was used as the microbial carrier. The carbonized rice straw was prepared to be biocarbon as adsorbent, and the biochar-fixed Pseudomonas flava WD-3 bacteria was added into the vertical flow constructed wetland sewage treatment system to discuss the removal efficiency of nitrogen in wastewater of low temperature and to simulate the kinetics of degradation of pollutants in constructed wetland by a simplified Monod Model. The results demonstrate that the removal efficiency of nitrogen in waste water in constructed wetland was increased significantly, when hydraulic retention time was 5 d. The degradation kinetics of TN, NH₄⁺-N, NO₂^--N, NO₃^--N were accorded with the Monod Model by biochar-fixed Pseudomonas flava WD-3.

Key words: nitrogen, constructed wetland, Pseudomonas flava WD-3, biochar, kinetics mode

中图分类号:

袁敏, 刘晓冰, 唐美珍, 杨月伟. 生物炭固定菌强化人工湿地对低温污水中氮素去除的模拟研究[J]. 生态与农村环境学报, 2018, 34(5): 463-468.

YUAN Min, LIU Xiao-bing, TANG Mei-zhen, YANG Yue-wei. Study on Removal of Nitrogen From Low Temperature Sewage by Pseudomonas flava WD-3 Immobilized Biochar in Constructed Wetland[J]. Journal of Ecology and Rural Environment, 2018, 34(5): 463-468.

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生物炭固定菌强化人工湿地对低温污水中氮素去除的模拟研究

Study on Removal of Nitrogen From Low Temperature Sewage by Pseudomonas flava WD-3 Immobilized Biochar in Constructed Wetland

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