当前位置: 首页 > 文章 > 碳酸钠对生物滤池硝化作用及水体pH的影响 安徽农业科学 2016,44 (17) 127-129
Position: Home > Articles > Effect of Na_2CO_3 on Nitrification and Water Body pH in the Biofilter Journal of Anhui Agricultural Sciences 2016,44 (17) 127-129

碳酸钠对生物滤池硝化作用及水体pH的影响

作  者:
刘峙岳;程海华;朱建新;曲克明;徐勇
单  位:
上海海洋大学水产与生命学院;中国水产科学研究院黄海水产研究所;烟台涌勤海洋科技有限公司
关键词:
循环水养殖系统(RAS);pH;生物滤池;硝化反应
摘  要:
[目的]寻找适合在RAS系统的碱性添加剂,为在封闭式循环水养殖系统中(RAS)合理使用Na2CO3提供理论依据。[目的]通过设置不同梯度的Na2CO3添加量,研究其对生物滤池硝化反应的影响过程和引起水体p H变化的情况。[结果]与对照组相比,添加适量Na2CO3不会显著增强生物滤池对TAN和NO-2-N的去除效果,但会在短时间内加快硝化反应的进行,其中添加量分别为80和160mg/L的C组和D组在反应6 h时,硝化反应速率比其他3组更快,试验结束时各组之间几乎没有差异。此外,添加Na2CO3还会延缓水体p H随着反应的进行下降的趋势,而延缓程度随着Na2CO3添加量的增加而增大。[结论]该研究可为Na2CO3在RAS系统中的合理使用提供理论依据。
译  名:
Effect of Na_2CO_3 on Nitrification and Water Body pH in the Biofilter
作  者:
LIU Chi-yue;CHENG Hai-hua;ZHU Jian-xin;Yantai Yongqin Marine Science and Technology Co.,Ltd.;College of Fisheries and Life Science,Shanghai Ocean University;Key Laboratory of Sustainable Development of Marine Fisheries,Ministry of Agriculture,Yellow Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences;
关键词:
Recirculation aquaculture system;;pH;;Biofilter;;Nitrification
摘  要:
[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 p H 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 NO-2-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 p H 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.

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