生态与农村环境学报 ›› 2014, Vol. 30 ›› Issue (6): 744-748.doi:

• 污染控制与修复 • 上一篇    下一篇

聚乙烯醇凝胶包埋固定化细菌联合植物的除氮研究

张永栋,汪龙眠,张毅敏,高月香,杨飞,车昱晓,周创,刘其根   

  1. 上海海洋大学农业部淡水水产种质资源重点实验室
  • 收稿日期:2014-03-05 修回日期:2014-08-21 出版日期:2014-11-25 发布日期:2014-12-05
  • 通讯作者: 张毅敏 环境保护部南京环境科学研究所 E-mail:zhangymzym@163.com
  • 作者简介:张永栋(1986—),男,山东潍坊人,硕士生,主要从事水体富营养化控制与生态修复方面的研究。E-mail:zyd19861114@163.com
  • 基金资助:

    国家水体污染控制与治理科技重大专项(2012ZX07101-007,2008ZX07101-007)

Nitrogen Removal of Polyvinyl Alcohol(PVA) Gel Embedded With Nitrifying/Denitrifying Bacteria Coupled With Plant

ZHANG  Yong-Dong, WANG  Long-Mian, ZHANG  Yi-Min, GAO  Yue-Xiang, YANG  Fei, CHE  Yu-Xiao, ZHOU  Chuang, LIU  Qi-Gen   

  1. Key Laboratory of Freshwater Fishery Germplasm Resources,Minsitry of Agriculture,Shanghai Ocean University
  • Received:2014-03-05 Revised:2014-08-21 Online:2014-11-25 Published:2014-12-05
  • Contact: ZHANG Yi-Min Nanjing Institute of Environmental Sciences,Ministry of Environmental Protection E-mail:zhangymzym@163.com

摘要: 为了解聚乙烯醇(PVA)凝胶包埋固定化菌在富营养化水体生态修复中的效果,利用PVA 凝胶包埋固定硝化和反硝化细菌并联合水芹(Oenanthe clecumbens)和蕹菜(Ipomoea aquatica)2 种植物进行21 d 的除氮试验。结果表明,加菌试验组TN、NH?N、NO?N、NO?N 及TP 去除率显著高于无菌试验组(<0.05);各试验组N 的去除效率与添加PVA 凝胶包埋固定硝化和反硝化细菌呈显著正相关(<0.05)。添加PVA 凝胶固定硝化和反硝化细菌的蕹菜和水芹试验组植物的平均生长速率(GR)分别为38.5 和19.6 mg·g-1 ·d-1,而单纯蕹菜和水芹试验组GR分别为29.9 和9.5 mg·g-1·d-1

关键词: 聚乙烯醇凝胶, 硝化细菌, 反硝化细菌, 富营养化, 除氮

Abstract: To explore effect of polyvinyl alcohol(PVA) gel embedded with nitrifying/denitrifying bacteria in remedying ecology of eutroficated waterbody, a 21-day N-removal  experiment was conducted using the gel coupled with two species of plants (Oenanthe clecumbensand Ipomoea aquatica). Results show that the concentration of TN, NH4+-N, NO3--N, NO2--N and TP in the group added with bacteria was significantly lower than that in the group without bacteria, respectively(P<0.05). Correlation analysis shows that nitrogen removal efficiency in the experimental groups was significantly and positively related to the addition of nitrifying bacteria and denitrifying bacteria embedded in PVA Gel(P<0.05). The mean growth rate of Oenanthe clecumbensand Ipomoea aquatica was 38.5 and 19.6 mg·g-1·d-1, respectively, in the experimental group added with the gel(RGR)and 29.9 and 9.5 mg·g-1·d-1, respectively. in the group without the gel.

Key words: PVA ge, nitrifying bacteria, denitrifying, eutrophication, nitrogen removal

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