不同微生物制剂对恶臭水体中氨氮去除效果的比较  

Different Microbial Preparations for Malodorous Water Bodies Comparison of Ammonia Removal Effect

作　　者：龙跃飞 马赟花 张义敏 LONG Yue-fei;MA Yun-hua;ZHANG Yi-min(School of Ecological Engineering,Guizhou University of Engineering Science,Bijie,Guizhou 551700,China)

机构地区：[1]贵州工程应用技术学院生态工程学院,贵州毕节551700

出　　处：《贵州工程应用技术学院学报》2023年第3期153-160,共8页Journal of Guizhou University Of Engineering Science

基　　金：国家级大学生创新创业训练计划项目“微生物在城市生活垃圾恶臭污染中的研究”,项目编号:2021110668041;贵州工程应用技术学院科研经费结余项目“毕节市食用菌资源的调查与开发利用”。

摘　　要：实验选取了菌有效生物群(EM)、复合芽孢杆菌(F)和硝化细菌(X)三种微生物制剂,通过不同投加量的单类菌群投放实验和不同菌剂组合的复合菌群投放实验,探究不同处理对氨氮的去除效果。结果表明:(1) EM菌、复合芽孢杆菌、硝化细菌最佳投加量分别为5g/L、3.75g/L和2.5g/L,对应的有效活菌数分别为1500亿CFU/L、3750亿CFU/L和500亿CFU/L。(2)三种菌剂最佳投加量的氨氮去除率表现为EM菌>硝化细菌>复合芽孢杆菌,去除率分别为69.3%、67.5%、40.2%。(3)复合菌群投放最优组合为5g/L(有效活菌数1500亿CFU/L)的EM菌和投加2.5g/L(有效活菌数500亿CFU/L)的硝化细菌,其氨氮去除率为51.7%,显著大于其它组合的去除率,但弱于单类菌群的去除率。Three microbial agents,EM bacteria(effective bacteria),Bacillus complex(F)and nitrifying bacteria(X),were selected in the experiment.The removal effects of different treatments on ammonia nitrogen were explored through single bacterial community delivery experiment with different dosage and compound bacterial community delivery experiment with different bacterial combinations.The results showed that:(1)The optimal dosage of EM bacteria was 5g/L,Bacillus complex was 3.75g/L,and nitrifying bacteria was 2.5g/,while the effective viable bacteria count is 150 billion CFU/L,375 billion CFU/L and 50 billion CFU/L respectively.(2)In the experiment,the removal rates of the optimal dosage of three kinds of bacteria were compared.The removal rates were as follows:EM bacteria>nitrifying bacteria>complex Bacillus,and the removal rates were 69.3%,67.5% and 40.2%,respectively.(3)The optimal combination selected by the compound bacteria delivery experiment was(E2g+X1g),that is,the combination of EM bacteria is 5g/L(the effective viable bacteria count is 150 billion CFU/L)while the combination of nitrifying bacteria is 2.5g/L(the effective viable bacteria count is 50 billion CFU/L),whose combined ammonia nitrogen removal rate was 51.7%.The results showed that all three kinds of microbial preparations had the degradation effect on ammonia nitrogen in malodorous water,among which EM bacteria and Bacillus bacteria had the best degradation effect on ammonia nitrogen,and the combined degradation effect was lower than that of single bacteria.

关 键 词：微生物制剂 EM菌 复合芽孢杆菌 硝化细菌 投加量 氨氮降解 

分 类 号：Q89[生物学]