厌氧硫酸盐还原-氨氧化的研究  

Study of anaerobic sulfate-reducing ammonium oxidation reaction

作　　者：刘福鑫[1] 黄勇[1] 袁怡 李祥[1] 张春蕾 张丽[1] 

机构地区：[1]苏州科技学院环境科学与工程学院,苏州215011 [2]同济大学环境科学与工程学院,上海200092 [3]上海浦东星火开发区联合发展有限公司,上海201419

出　　处：《环境工程学报》2015年第2期699-704,共6页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(51008202);江苏省环保厅重大项目(201104);江苏省2012年度普通高校研究生科研创新计划项目(CXZZ12_0858)

摘　　要：采用厌氧序批式反应器,在无机营养条件下培养历时354 d,成功实现了SO2-4和NH+4的同步生物去除。结果表明,提高进水的TN负荷有利于促进硫酸盐还原-氨氧化的发生,当进水TN负荷提高到120 mg/(L·d)时,对TN的平均去除速率和硫酸盐硫的平均去除速率达到了最大,分别为64.43 mg/(L·d)和44.82 mg/(L·d);在同步生物脱氮除硫前期生成了大量的NO-3-N,平均浓度为53.88 mg/L,远大于由Anammox反应生成的量,推测部分NO-3是直接由NH+4和SO2-4发生氧化还原反应生成。该体系中存在单质硫的自养反硝化,可以解释反应后期硫酸盐重生成的现象。The anaerobic sequencing batch reactor was employed and Anammox sludge was cultured for 354 d with inorganic nutrients,then the synchronous biological removal of SO2-4and NH+4was successful observed.The results showed that increasing influent TN load is beneficial for the reaction of sulfate reducing-ammonium oxidation.When the influent TN load increased to 120 mg/(L·d),the average removal rates of TN and SO2-4-S both reached the maximum,64.43 mg/(L·d) and 44.82 mg/(L·d),respectively.A large amount of NO-3-N(average concentration of 53.88 mg/L) was generated during the early experiments of simultaneous removal of ammonium and sulfate,which was far more than the amount of generated by the Anammox reaction.That could be speculated that some of NO-3was generated directly from the NH+4oxidation by SO2-4.The elemental sulfur autotrophic denitrification was happened in the system,which could explain the phenomenon of sulfate regeneration in the late reaction period.

关 键 词：无机营养条件 硫酸盐还原-氨氧化 自养反硝化 

分 类 号：X703[环境科学与工程—环境工程]