钙化对生产性厌氧反应器中颗粒污泥特性的影响  

Effect of Calcification on the Characteristics of Granular Sludge in Anaerobic Reactor

作　　者：彭玲 张健[1] 王双飞 PENG Ling;ZHANG Jian;WANG Shuangfei(School of Light Industry and Food Engineering,Guangxi Key Lab of Clean Pulp&Papermaking and Pollution Control,Guangxi University,Nanning,Gaungxi Zhuang Autonomous Region,530004;School of Chemical and Biological Engineering,Yichun University,Yichun,Jiangxi Province,336000)

机构地区：[1]广西大学轻工与食品工程学院,广西清洁化制浆造纸与污染控制重点实验室,广西南宁530004 [2]宜春学院化学与生物工程学院,江西宜春336000

出　　处：《中国造纸》2024年第11期148-156,共9页China Pulp & Paper

基　　金：国家重点研发计划(2022YFC2105505);国家自然科学基金(22208066);广西南宁市创新创业领军人才项目(2021001);江西省教育厅科技项目(GJJ2201725、GJJ151029);江西省学位与研究生教育教学研究项目(JXYJG2016160)。

摘　　要：本研究以某废纸制浆企业的钙化厌氧反应器为背景,跨年度采集了厌氧颗粒污泥样本,系统分析了其理化和生物特性的差异。结果表明,钙化过程中颗粒污泥内碳酸钙持续累积,导致Ca2+含量、灰分增加,并加快了颗粒沉降速度,同时伴随着污泥粒径增加。长期暴露于高钙废水中,细菌群落中产氢产乙酸菌的相对丰度显著提升,而水解酸化菌的丰度显著降低;古菌群落中,原有优势菌Methanobacterium(产甲烷杆菌属)减少,而适应新环境的Bathyarchaeia、Methanolinea(产甲烷八叠球菌属)和Candidatus_Methanofastidiosum等菌群显著增加。通过解析钙化对颗粒污泥特性及微生物群落的影响,可为解析生产性反应器中高钙环境对颗粒污泥响应提供相关信息。This study investigated a calcified anaerobic reactor at a waste paper pulping company,where granular samples were collected over a year.Systematic analysis of the physicochemical and biological properties of the granules revealed that calcium carbonate accumulation during calcification led to increased Ca2+content,higher ash content,accelerated settling velocity and larger diameter.Prolonged exposure to high-calcium wastewater significantly enhanced the relative abundance of hydrogen-producing acetogens in the bacterial community,while the abundance of hydrolytic bacteria and acidogens declined.In the archaeal community,the original dominant methanogens Methanobacterium decreased,while archaea adapted to the high-calcium environment showed significant growth,such as Bathyarchaeia,Methanolinea,and Candidatus_Methanofastidiosum.These changes in physicochemical properties and microbial community succession provided critical insights into the response mechanisms of granular sludge under calcification stress.

关 键 词：废纸制浆废水 钙化 颗粒污泥 微生物群落 

分 类 号：X793[环境科学与工程—环境工程]