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This study examined a combined potassium permanganate (KMnO₄) and polyaluminium chloride (PAC) process for treating karst waters, with experiments simulating the seasonal variations in manganese concentration. Using algal organic matter (AOM) from Chlorella sp. and Pseudoanabaena sp., the mechanisms for Mn(II) removal, AOM transformation, and DBPs control were investigated. The results indicated that KMnO₄ oxidized Mn(II) to MnO₂, while PAC promoted the co-precipitation of MnO₂ with AOM through adsorption and bridging. TEM analysis confirmed that MnO₂ was encapsulated by PAC flocs and associated with AOM. FTIR and ICP-MS analyses demonstrated enhanced Mn(II) adsorption via coordination with algal surface functional groups. The combined process reduced the formation of carbonaceous DBPs (C-DBPs) and nitrogenous DBPs (N-DBPs) by 16% and 18.5%, respectively. Notably, trichloromethane (TCM) formation was reduced by 51%, underscoring the process's effectiveness against C-DBPs. Compared to KMnO₄ alone, the combined process reduced N-DBPs formation by only 0.6% in the Chlorella sp. system but by 27% in the Pseudoanabaena sp. system. This disparity suggests that DBP formation pathways are differentially regulated by AOM components, which vary with algal species.

, authors=Jun-chen LUO¹, Mao-fei NI¹, Cheng-cheng FU², Run-yu ZHANG³, Xiao-yong LUO⁴, Zhi-kang WANG^{1, *}, authorsList=Jun-chen LUO, Mao-fei NI, Cheng-cheng FU, Run-yu ZHANG, Xiao-yong LUO, Zhi-kang WANG, authorCompany=null, correspAuthors=Zhi-kang WANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1314923033786155929, articleId=1314923033249285015, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=高锰酸钾-聚合氯化铝对水体锰离子及消毒副产物的协同调控, columnId=1234106386565624579, journalTitle=中国环境科学, columnName=水污染与控制, runingTitle=null, highlight=null, articleAbstract=

本研究通过高锰酸钾（KMnO₄）预氧化耦合聚合氯化铝（PAC）混凝联用工艺，模拟喀斯特水体不同水文季节锰离子浓度动态变化，以小球藻（Chlorella sp.）和伪鱼腥藻（Pseudoanabaena sp.）的藻源有机物（AOM）为研究对象，探究联用工艺对Mn（II）的氧化去除、AOM降解转化和消毒副产物（DBPs）的调控机制．结果表明：KMnO₄将Mn（II）氧化生成MnO₂，PAC通过吸附架桥促进MnO₂与AOM共沉淀；同时TEM表征证实了MnO₂被PAC包裹并富集于AOM絮体中．FTIR和ICP-MS表征验证了藻类表面多糖及蛋白质官能团通过配位作用增强对Mn（II）的吸附．联用工艺使含碳消毒副产物（C-DBPs）和含氮消毒副产物（N-DBPs）生成量分别降低16%和18.5%；其中三氯甲烷（TCM）的生成量降低达51%，揭示KMnO₄-PAC联用工艺能有效抑制C-DBPs生成．同时，相较投加KMnO₄，联用工艺仅使小球藻体系的N-DBPs生成量降低0.6%，而伪鱼腥藻体系降幅达27%；这一现象反映不同藻种体系AOM组分转化对DBPs路径的差异化调控．

, authors=骆隽辰¹, 倪茂飞¹, 傅成诚², 张润宇³, 罗小勇⁴, 王志康^{1, *}, authorsList=骆隽辰, 倪茂飞, 傅成诚, 张润宇, 罗小勇, 王志康, authorCompany=null, correspAuthors=王志康, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=189rDa+m7+juke5BQcpS/g==, magXml=mzzTM4nJr2iiEEcvOUZdPw==, pdfUrl=null, pdf=uExn3eq38B9gdn/pKgSpRA==, pdfFileSize=2063512, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=miZ//CE151ftoAbK9amqpw==, mapNumber=null, fund=null)}, authors=[Author(id=1314923034352386983, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314923033249285015, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=2225447568@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1314923034440467369, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314923033249285015, authorId=1314923034352386983, language=EN, stringName=Jun-chen LUO, firstName=Jun-chen, middleName=null, lastName=LUO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1.College of Eco-Environmental Engineering, Guizhou Minzu University, Guiyang 550025, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1314923034515964842, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314923033249285015, authorId=1314923034352386983, language=CN, stringName=骆隽辰, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1.贵州民族大学生态环境工程学院，贵州 贵阳 550025, bio={"content":"

骆隽辰（2000-），男，浙江丽水人，贵州民族大学硕士研究生，主要从事水处理技术研究．发表论文1篇．2225447568@qq.com.

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骆隽辰（2000-），男，浙江丽水人，贵州民族大学硕士研究生，主要从事水处理技术研究．发表论文1篇．2225447568@qq.com.

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