摘要
青藏高原是全球气候变暖的敏感区,具有独特的环境特征和敏感性。因此,研究高原环境中活性污泥的微生物群落组成、代谢途径和功能基因随温度变化的规律,对于稳定高效运维高海拔污水处理厂具有重要的现实意义。该文以高原城市林芝所用的A^(2)O工艺的生活污水为研究对象,探究了不同温度下该工艺的污染物处理效果,并通过微生物群落组成、微生物代谢途径及微生物群落功能基因等多种途径探究其变化原因。结果表明,高原条件温度变化导致微生物群落的变化进而影响污染物处理效果,且高原条件微生物代谢途径与主要基因同亚高原地区有着显著区别,证实了温度和环境变化对微生物生态系统的影响,为后续高原条件下A^(2)O工艺的优化升级提供了一定的理论参考。
Qinghai-Tibet Plateau is a sensitive area for global warming,with unique environmental characteristics and sensitivity.Therefore,it is of great practical significance to study the changes of microbial community composition,metabolic pathways and functional genes of activated sludge with temperature in plateau environment for stable and efficient operation and maintenance of high altitude wastewater treatment plants.The pollutant treatment effect of A^(2)O process used in the highland city of Linzhi,Tibet at different temperatures was investigated,and the reasons for the changes were explored through microbial community composition,microbial metabolic pathways and functional genes of the microbial community.The results showed that the changes in microbial community due to temperature changes in plateau conditions affect the pollutant treatment effect,and the metabolic pathways and main genes of microorganisms in plateau conditions are significantly different from those in subalpine areas,which confirmed the influence of temperature and environmental changes on microbial ecosystem,and provided some theoretical reference for the optimization and upgrading of A^(2)O process in plateau conditions.
作者
傅椿惠
宗永臣
王俊
尤俊豪
郭明哲
FU Chunhui;ZONG Yongchen;WANG Jun;YOU Junhao;GUO Mingzhe(College of Water Conservancy&Civil Engineering,Tibet Agriculture&Animal Husbandry University,Linzhi 860000,China)
出处
《环境科学与技术》
CAS
CSCD
北大核心
2023年第9期45-53,共9页
Environmental Science & Technology
基金
国家自然科学基金资助项目(51868069)
西藏自治区自然基金重点项目(XZ202301ZR0056G)
西藏农牧学院研究生创新计划资助项目(YJS2023-46)
西藏农牧学院大学生创新创业训练计划项目(ZJ2023CXCY013):乙酸钠为单一碳源条件下的脱氮除磷及微生物特性研究
关键词
高原
温度
微生物群落特征
代谢途径
基因功能
plateau
temperature
microbial community characteristics
metabolic pathway
gene function
