以亚硫酸钙为电子供体的自养反硝化研究  

Study on Autotrophic Denitrification with Calcium Thulfite as An Electron Donor

作　　者：叶一舟 倪伟敏[1] 余德波 YE Yi-zhou;NI Wei-min;YU De-bo(Key Laboratory of Ecosystem Conservation and Restoration,Hangzhou Normal University,Zhejiang Hangzhou 310036,China)

机构地区：[1]杭州师范大学生态系统保护与恢复杭州市重点实验室,浙江杭州310036

出　　处：《广州化工》2023年第12期70-72,共3页GuangZhou Chemical Industry

基　　金：杭州师范大学本科生创新创业能力提升工程(sk2021007)。

摘　　要：亚硫酸盐自养反硝化是一种新型低碳源含硝废水的处理方法,亚硫酸盐代替碳源作为电子供体被脱氮硫杆菌利用进行硫自养反硝化作用,将水中的硝酸盐去除。本项目探讨了以不溶性亚硫酸钙作为电子供体,研究反硝化菌去除硝态氮的主要影响因素,以及硫酸盐积累。试验结果表明,以亚硫酸钙为电子供体,在pH为6.0~7.0范围内,经过21 h反应,反硝化污泥在CaSO3∶NO_(3)^(-)-N摩尔比=2∶1的条件下对100 mg/L的NO_(3)^(-)-N废水的NO_(3)^(-)-N去除率可达到77%。Sulfite autotrophic denitrification is a new low-carbon source nitrate-containing wastewater treatment method.Sulfite replaces carbon source as an electron donor and is used by Thiobacillus denitrificans to perform sulfur autotrophic denitrification and remove nitrate in water.The main influencing factors of the removal of nitronitrogen was investigated using insoluble calcium sulfite as an electron donor.Sulfate accumulation was also considered simultaneously.The results showed that NO_(3)^(-)-N removal of 100 mg/L NO_(3)^(-)-N wastewater could be 77%after 21 h reaction in pH range of 6.0~7.0 and at a molar ratio of calcium sulfite to nitrogenous nitrogen of 2.

关 键 词：自养反硝化 亚硫酸钙 硫酸盐积累 

分 类 号：X703[环境科学与工程—环境工程]