摘要
近年来,由于水产养殖尾水中的氮元素日益增多,利用生物脱氮的技术已逐渐成为热门研究课题之一。采取效率高、成本低、无二次污染且操作简单的生物工艺对水产养殖尾水进行治理是当今的研究热点。文章研究构建了一种新型生物荚膜球高效脱氮技术,并在此基础上进行了淡水池塘养殖尾水模拟实验,以期建立一种以荚膜球为基础的智能化养殖废水处理系统,能够对今后养殖尾水治理技术的研究提供一定的参考价值。文章通过在不同因素的影响下探究得到荚膜球的最佳脱氮条件为:以硝酸钠作为唯一氮源,配制250 m L浓度为10 mg/L的模拟养殖废水,乙酸钠为碳源、C/N为6、p H为7.5、荚膜球投加量为50 g/L时能在高效重复使用后去除含氮物质,其结构稳定,为应用在养殖尾水处理的实际工程中提供了可能。
In recent years, due to the increasing number of nitrogen elements in aquaculture tail water, the use of biological nitrogen removal technology has gradually become a hot topic. It is a hot research topic to adopt high efficiency, low cost, no secondary pollution and simple operation of the biological process to control the aquaculture tail water. In this paper, a new type of biological capsule sphere efficient nitrogen removal technology is studied and constructed, and a simulation experiment of freshwater pond aquaculture is carried out to establish an intelligent aquaculture wastewater treatment system based on capsule sphere, so as to provide some reference value for future research on aquaculture tail water treatment technology. This paper explores the optimal denitrification conditions of capsule sphere under the influence of different factors: sodium nitrogen as the sole nitrogen source, the concentration of 10 mg/L with 250 mL of simulated aquaculture wastewater, sodium acetate as the carbon source, C/N ratio of 6, pH value of 7.5, capsule sphere to add 50 g/L can remove nitrogen substance;its structure is stable, which is possible for the practical engineering application of aquaculture tail water treatment.
作者
高雅姝
季延滨
孙学亮
黄晶晶
薛亮
张咪
GAO Yashu;JI Yanbin;SUN Xueliang;HUANG Jingjing;XUE Liang;ZHANG Mi(College of Fisheries,Tianjin Agricultural University,Tianjin 300392,China)
出处
《工业微生物》
CAS
2023年第1期33-38,共6页
Industrial Microbiology
关键词
反硝化微生物
生物膜脱氮
荚膜球
脱氮工艺
尾水处理
水产养殖
denitrifying microorganisms
biofilm nitrogen removal
capsular bulb
nitrogen removal process
tail water treatment
aquaculture
