安徽农业科学2016，Vol.44Issue(17)：127-129,3.
碳酸钠对生物滤池硝化作用及水体pH的影响
Effect of Na2 CO3 on Nitrification and Water Body pH in the Biofilter
摘要
Abstract
Objective] To correctly understand and rationally use Na2CO3 as alkaline additives in the closed recirculation aquaculture systems (RAS).[Method] By adding Na2CO3 at a gradient of concentrations to the biofilter, the effects of Na2CO3 on biofilter nitrification process and the changes of pH value in the water were preliminarily studied.[Result] Compared to the control group, adding proper amount of Na2CO3 did not significantly enhance the removal effect of TAN and NO2--N in the biofilter, but accelerated the nitration reaction in a short time.After 6h of reaction, the nitrification rates of treatments C and D were faster than the other three treatments .By the end of the experiment, there was almost no difference between the treatments.In addition, adding Na2CO3 delayed the downtrend of pH in the water, and the degree of delay increased with the adding of Na2CO3.[Conclusion] This research provides theoretical foundation for the rational utilization of Na2CO3 in RAS system.关键词
循环水养殖系统(RAS)/pH/生物滤池/硝化反应Key words
Recirculation aquaculture system/pH/Biofilter/Nitrification分类
农业科技引用本文复制引用
刘峙岳,程海华,朱建新,曲克明,徐勇..碳酸钠对生物滤池硝化作用及水体pH的影响[J].安徽农业科学,2016,44(17):127-129,3.基金项目
国家科技支撑计划项目（2011BAD13B04，2011BAD13B07）。 （）
