| 不同印染硫酸盐废水处理方式对微生物结构及硫循环功能基因的影响 |
| 摘要点击 268 全文点击 7 投稿时间：2025-10-13 修订日期：2026-01-10 |
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| 中文关键词 印染废水 宏基因组测序 微生物群落 微生物功能 硫循环 |
| 英文关键词 printing and dyeing wastewater metagenomic sequencing microbial community microbial function sulfur cycle |
| DOI 10.13227/j.hjkx.202510110 |
| 作者 | 单位 | E-mail | | 陈静 | 新疆大学生态与环境学院, 绿洲生态教育部重点实验室, 乌鲁木齐 830017
新疆精河温带荒漠生态系统教育部野外科学观测研究站, 精河 833300 | 3575900485@qq.com | | 江宜霖 | 新疆生产建设兵团生态环境第二监测站, 阿拉尔 843300 | | | 吕杰 | 新疆大学生命科学与技术学院, 新疆生物资源基因工程重点实验室, 乌鲁木齐 830017 | | | 马媛 | 新疆大学生态与环境学院, 绿洲生态教育部重点实验室, 乌鲁木齐 830017
新疆精河温带荒漠生态系统教育部野外科学观测研究站, 精河 833300 | xjmayuan@xju.edu.cn | | 杨曦 | 新疆大学生态与环境学院, 绿洲生态教育部重点实验室, 乌鲁木齐 830017
新疆精河温带荒漠生态系统教育部野外科学观测研究站, 精河 833300 | | | 沈畅 | 新疆大学生态与环境学院, 绿洲生态教育部重点实验室, 乌鲁木齐 830017
新疆精河温带荒漠生态系统教育部野外科学观测研究站, 精河 833300 | | | 郭芳莉 | 新疆大学生态与环境学院, 绿洲生态教育部重点实验室, 乌鲁木齐 830017
新疆精河温带荒漠生态系统教育部野外科学观测研究站, 精河 833300 | | | 杨志龙 | 新疆大学生态与环境学院, 绿洲生态教育部重点实验室, 乌鲁木齐 830017
新疆精河温带荒漠生态系统教育部野外科学观测研究站, 精河 833300 | |
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| 中文摘要 |
| 新疆原棉资源优势已逐渐转化为纺织印染为主的制造优势，而纺织印染业高耗水与新疆水资源短缺产生巨大冲突. 在新疆印染废水处理达标后外排利用是否会对荒漠生态系统产生影响，缺乏研究支撑. 以新疆阿拉尔市某工业园区印染废水处理系统为研究对象，综合分析排水口（PSK）、人工湿地（RGSD）及氧化塘（YHT）底泥理化因子、微生物群落和功能结构、硫循环功能基因特征及相关驱动因子. 印染废水经RGSD和YHT处理后，水中Na+、Cl-、SO42-和电导率显著升高. PSK处底泥中含有较高含量的TN、SOC、SO42-和TDS；RGSD底泥中Ca2+、SO42-、TDS和TP含量较高，TN和SOC显著下降. YHT中Na+和Cl-含量较高，Ca2+和SO42-显著下降. 底泥中微生物群落以细菌为主，其α和β多样性在不同处理单元间差异显著，RGSD微生物多样性最低. 硫循环功能基因分析表明，同化硫酸盐还原途径为优势途径，异化硫酸盐还原基因在RGSD最高，硫氧化基因在PSK处最丰富. 结构方程与Mantel分析表明，底泥中养分促进微生物多样性及同化硫酸盐还原过程，而离子浓度对其具有抑制作用，TP、TDS和SO42-是驱动微生物群落结构变异的关键因子. 不同离子对硫代谢途径有不同影响，TN和SOC抑制异化硫酸盐还原而促进同化硫酸盐还原与硫氧化，Cl-、Na+、K+和Mg2+离子抑制硫氧化和同化硫酸盐还原过程. 从微生物生态与功能基因层面揭示了硫酸盐印染废水不同处理方式中微生物硫代谢协同机制，可为今后新疆地区印染废水处理外排综合利用及黑臭水体污染防控提供理论依据. |
| 英文摘要 |
| The advantages of Xinjiang raw cotton resources have gradually transformed into manufacturing advantages dominated by textile printing and dyeing， while the high water consumption of the textile printing and dyeing industry conflicts sharply with the water shortage in Xinjiang. The time for comprehensive utilization after the treatment of printing and dyeing wastewater in Xinjiang meets the standards is relatively short， and there is a lack of research support on whether the discharge and utilization will have an impact on the desert ecosystem. This study takes a printing and dyeing wastewater treatment system in an industrial park in Alar City， Xinjiang as the research object and comprehensively analyzes the characteristics and related driving factors of physical and chemical factors of sediment， microbial community， functional structure， sulfur cycle functional genes in drainage outlet （PSK）， constructed wetland （RGSD）， and oxidation pond （YHT）. After the printing and dyeing wastewater was treated by RGSD and YHT， the Na+， Cl-， SO42-， and electrical conductivity in the water increased significantly. PSK had higher contents of TN， SOC， SO42-， and TDS in sediment， and RGSD had higher contents of Ca2+， SO42-， TDS， and TP in sediment， while TN and SOC decreased significantly. YHT had higher contents of Na+ and Cl-， while Ca2+ and SO42- decreased significantly. The microbial community in sediment was dominated by bacteria， and its α and beta diversity varied significantly among different treatment units， with RGSD having the lowest microbial diversity. Sulfur cycle functional genes analyses showed that assimilatory sulfate reduction was the dominant pathway， dissimilatory sulfate reduction genes were the highest in RGSD， and sulfur oxidation genes were the most abundant at PSK. Structural equation and Mantel analysis indicated that nutrients in sediment promoted microbial diversity and assimilatory sulfate reduction process， while ion concentration had an inhibitory effect on them， and TP， TDS， and SO42- were the key factors driving the variation of microbial community structure. Different ions had different effects on the sulfur metabolic pathway. TN and SOC inhibited dissimilatory sulfate reduction while promoting assimilatory sulfate reduction and sulfur oxidation. Cl-， Na+， K+， and Mg2+ ions inhibited sulfur oxidation and assimilatory sulfate reduction processes. This study reveals the microbial sulfur metabolism synergy mechanism in different treatment methods of sulfate printing and dyeing wastewater from the perspectives of microbial ecology and functional genes， providing a theoretical basis for the effluent comprehensive utilization of printing and dyeing wastewater treatment and prevention and control of black and odorous water pollution in the Xinjiang Region in the future. |
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