3种填料对集装箱循环水养殖废水处理的初步研究

发布时间：2018-05-12 02:07

本文选题：集装箱循环水养殖 + 生物填料　；参考：《渔业现代化》2017年05期

【摘要】：为探讨聚丙烯塑料发泡材料(EPP)、悬浮球填料和海绵填料对集装箱循环水养殖废水中细菌吸附性能的差异,以及3种填料挂膜启动和挂膜成熟后对氨氮(NH_4~+-N)、亚硝酸盐氮(NO_2~--N)和硝酸盐氮(NO_3~--N)的净水效果,以集装箱循环水养殖废水为研究对象,采用自然挂膜的方式进行了为期3个月的试验,并对相关指标进行测定。结果显示:EPP填料对养殖废水中细菌的吸附能力最好,另外两种填料对细菌的吸附能力次之并且差异不显著(P0.05);3种填料自然挂膜成熟的时间分别为21 d、26 d和30 d;各填料挂膜成熟后处理高浓度NH_4~+-N养殖废水时,NH_4~+-N浓度与NO_2~--N浓度之间的关系可以用多项式y=ax~2+bx+c进行拟合,NH_4~+-N浓度与NO_3~--N浓度之间的关系可以用对数式y=aln(x)+b进行拟合。研究表明:EPP填料、悬浮球填料和海绵填料均可作为生物填料用于集装箱循环水养殖系统。
[Abstract]:In order to study the difference of bacteria adsorption performance of polypropylene (PP) foaming material EPPN, suspended ball packing and sponge packing for container circulating water culture wastewater. The effects of three kinds of fillers on the purification of NH _ 4 ~ -N ~ -N, no _ 2N _ 2N _ 2N) and no _ 3-N _ 3-N) after the start-up and maturation of three kinds of fillers were studied. The container circulating water culture wastewater was used as the research object, and the experiment was carried out for three months by using the method of natural membrane hanging. The related indexes were determined. The results showed that the microbes in the culture wastewater could be adsorbed best by the Filler:% EPP. The adsorption ability of the other two fillers to bacteria was the second and the difference was not significant. The maturation time of the three kinds of fillers was 21 d ~ 26 d and 30 d respectively, and the concentration of NH _ 4 ~ -N in the treatment of high concentration NH _ 4 ~ -N culture wastewater after maturation of each packing was compared with that of the control group. The relationship between NO_2~--N concentration and NO_3~--N concentration can be fitted by polynomial y=ax~2 BX c. The results showed that the fraction EPP, suspension ball and sponge fillers could be used as biological fillers in the container recycling water culture system.
【作者单位】：中国海洋大学水产学院;广州华大锐护科技有限公司;
【基金】：国家自然科学基金青年基金(31502212)
【分类号】：X714

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