单级自养脱氮体系对石墨烯基材料的响应特征

郭丽莎; 宋炳皞; 朱雷; 陈婧; 吴莎; 陈宏; 张静

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中国环境科学 ›› 2026, Vol. 46 ›› Issue (1) : 178-187.

水污染与控制

单级自养脱氮体系对石墨烯基材料的响应特征

郭丽莎¹, 宋炳皞^1,2, 朱雷³, 陈婧^1,4, 吴莎^1,4, 陈宏^1,4, 张静¹

作者信息 +

Response characteristics of a single-stage autotrophic nitrogen removal system to graphene-based materials

GUO Li-sha¹, SONG Bing-hao^1,2, ZHU Lei³, CHEN Jing^1,4, WU Sha^1,4, CHEN Hong^1,4, ZHANG Jing¹

Author information +

文章历史 +

摘要

：通过水热法制得氧化石墨烯复合材料(GO-CS),构建单级自养脱氮反应器,结合批次试验来验证其浓度响应特征,并利用分子生物学手段揭示微生物群落演替规律,系统探究投加GO-CS对单级自养脱氮性能的影响机制.研究表明:20mg/LGO-CS通过促进电子传递来促进厌氧氨氧化;50mg/L时因电子竞争抑制AnAOB活性;而100mg/L长期暴露下,AnAOB通过增加EPS分泌和群落结构适应性调整实现适应性恢复.

Abstract

Graphene oxide-chitosan (GO-CS) composite materials were prepared using the hydrothermal method, and a single-stage autotrophic nitrogen removal reactor was constructed for continuous experiment. Batch experiments were conducted to evaluate its concentration-response characteristics, and molecular biology method was applied to elucidate the succession patterns of microbial communities. The effect of GO-CS addition on the performance of single-stage autotrophic nitrogen removal was systematically investigated. The results showed that 20mg/L GO-CS promoted anaerobic ammonium oxidation by facilitating electron transfer; at a concentration of 50mg/L, the activity of AnAOB was inhibited which might be there were other reactions which competing for the use of GO-CS as an electron transfer; and after long-term exposure to 100mg/L GO-CS, AnAOB achieved adaptive recovery by increasing the secretion of extracellular polymeric substances (EPS) and regulating functional genes.

导出引用

郭丽莎, 宋炳皞, 朱雷, 陈婧, 吴莎, 陈宏, 张静. 单级自养脱氮体系对石墨烯基材料的响应特征[J]. 中国环境科学. 2026, 46(1): 178-187

GUO Li-sha, SONG Bing-hao, ZHU Lei, CHEN Jing, WU Sha, CHEN Hong, ZHANG Jing. Response characteristics of a single-stage autotrophic nitrogen removal system to graphene-based materials[J]. China Environmental Science. 2026, 46(1): 178-187

中图分类号： X703

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