摘要
净化和处理海水养殖废水的研究已经系统而深入,实现同步短程硝化反硝化的污水生物脱氮处理已成为可能。本研究通过SND工艺实现了海水养殖废水的短程同步硝化反硝化去氮效果,为集约化养殖废水处理提供了方便快捷的方法。研究结果表明,在本试验装置和条件下,最佳短程硝化反硝化时间是0.5~4h;在温度为14~20℃的条件下,用醋酸钠作碳源,亚硝酸钠作氮源,利用反硝化作用可达到有效脱氮的目的,且最佳C/N比为0.8~1.2。
With the Systematic and in-depth studies of purification and treatment of marine aquaculture wastewater,the achievement of simultaneous short-cut nitrification-denitrification in biological wastewater nitrogen removal process has become possible.The experiment has achieved the denitrification effect of simultaneous short-cut nitrification-denitrification of mariculture wastewater by SND process,and it provided a convenient approach for the treatment of mariculture wastewater. The results showed that： the optimal time of shortcut nitrification and denitrification was 0. 5 ~ 4 h,under the conditions of temperature 14 ~ 20℃,using sodium acetate as carbon source,sodium nitrite as nitrogen source,it could take advantage of denitrification to achieve the purpose of nitrogen removal,and the best C/N ratio was about 0. 8 ~ 1. 2.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
2017年第5期1-6,共6页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
基金
内蒙古自治区自然科学基金(2016MS0339)
内蒙古自治区科技计划项目(NO201502072)
关键词
海水养殖废水
短程硝化反硝化
生物脱氮
C/N比
温度
Marine aquaculture wastewater
short - cut nitrification and denitrification
biological nitrogen removal
C/N ratio
temperature
