四联活菌制剂对养殖水体中氨氮及亚硝酸盐的降解

利用四联活菌制剂,在室内进行了对养殖池塘水体中氨氮及亚硝酸盐的降解试验.结果表明,光合细菌、纳豆芽孢杆菌、乳酸菌、硝化细菌具有较好的氨氮、亚硝酸盐降解性能,随着添加质量浓度的增加,氨氮、亚硝酸盐的去除率增加;各菌株氨氮降解能力依次为:乳酸菌＞光合细菌＞硝化细菌＞纳豆芽孢杆菌;亚硝酸盐降解能力依次为:硝化细菌＞纳豆芽孢杆菌＞光合细菌＞乳酸菌.四联活菌制剂对养殖水体中氨氮及亚硝酸盐降解试验结果表明,乳酸菌、光合细菌、硝化细菌、纳豆芽孢杆菌的协同作用对氨氮、亚硝酸盐的降解效果更显著、快速.当制剂添加量分别为1.5、3.0、4.5 kg/hm~2时,5 d氨氮的去除率分别为52%、80%、74%,亚硝酸盐的去除率接近100%,结果均显著高于添加同剂量单一菌株时的氨氮、亚硝酸盐的去除率.

Tetragenus Active Bacterial Agent for Degradation of Ammonia Nitrogen and Nitrite

The active bacterial tetragenus agent with four available microbes was added to the water in aquaculture ponds to decrease the contentss of ammonia nitrogen and nitrite in the ponds. The results showed that the contents of ammonium nitrogen and nitrite were decreased by the microbes. The more microbes was added, the faster ammonium nitrogen and nitrite decreased. The rank of elimination of the ammonium nitrogen by the microbes was ranged in a descendant order as the following:Lactobacillus ＞ photosynthetic bacteria ＞nitrobacteria＞ Bacillus natto. For nitrite, the rank of elimination of the ammonium nitrogen by the microbes was ranged in a descendant order as the following:nitrobacteria ＞ bacillus natto ＞photosynthetic bacteria ＞ Lactobacillus. 52%, 80% and 74%of the ammonium nitrogen were eliminated 5 days after the active bacteria tetragenus agent was added at a rate of 1.5×10~(-7), 3.0×10~(-7), and 4.5×10~(-7) g/ml, respectively, significantly higher than that by the single microbes at the same dose.