[1]柴宏祥,陈一凡,邵知宇,等.硫铁矿基质生物滞留系统对雨水径流的处理效能[J].中国给水排水,2022,38(3):112-117.
　CHAIHong-xiang,CHENYi-fan,SHAOZhi-yu,et al.Performance of Pyrite Substrate Bioretention System for Treatment of Rainfall Runoff[J].China Water & Wastewater,2022,38(3):112-117.
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硫铁矿基质生物滞留系统对雨水径流的处理效能

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第38卷 期数: 2022年第3期 页码: 112-117 栏目: 出版日期: 2022-02-01
Title:
Performance of Pyrite Substrate Bioretention System for Treatment of Rainfall Runoff
作者:
柴宏祥1,2， 陈一凡1,2， 邵知宇1,2， 孔政1,2， 古励1,2， 袁云松1,2， 方俊华1,2
（1.重庆大学 三峡库区生态环境教育部重点实验室，重庆 400045；2.重庆大学 低碳绿色建筑国际联合研究中心，重庆 400045）
Author(s):
CHAI　Hong-xiang1，2， CHEN　Yi-fan1，2， SHAO　Zhi-yu1，2， KONG　Zheng1，2， GU　Li1，2， YUAN　Yun-song1，2， FANG　Jun-hua1，2
（1. Key Laboratory of the Three Gorges Reservoir Region’s Eco?Environment ， Chongqing University， Chongqing 400045， China； 2. National Centre for International Research of Low?carbon and Green Buildings， Chongqing University， Chongqing 400045， China）
关键词:
生物滞留系统;  雨水径流;  硫铁矿;  反硝化;  低影响开发
Keywords:
bioretention system;  rainfall runoff;  pyrite;  denitrification;  low impact development
摘要:
针对传统生物滞留系统因缺乏有机碳源而导致的脱氮性能不稳定问题，开发了一种基于自养反硝化的硫铁矿改良生物滞留系统，研究了以硫铁矿代替电子供体的生物滞留系统对无碳源雨水径流的脱氮除磷效能，并对系统中的微生物种群结构进行了分析。结果表明，在雨水径流中无有机碳源的情况下，硫铁矿基质生物滞留系统仍可实现反硝化脱氮，对NO3--N和TN的平均去除率分别可达到89%和86%，同时亦有高效稳定的除磷效果，TP去除率达到81%。硫铁矿基质可提高生物滞留系统内部微生物的反硝化能力，反硝化相关菌种Pseudomonas和Thiobacillus的相对丰度分别为5.7%和1.6%。
Abstract:
A modified pyrite bioretention system based on autotrophic denitrification was developed to solve the problem of unstable denitrification performance caused by the lack of organic carbon source in traditional biological retention system. The performance of nitrogen and phosphorus removal in rainfall runoff by the bioretention system with pyrite as electron donor was investigated, and the microbial community in the system was analyzed. In the case of no organic carbon source in rainfall runoff, the pyrite substrate bioretention system could still achieve nitrogen removal through denitrification, and the average removal efficiencies of nitrate nitrogen and total nitrogen reached 89% and 86%, respectively. In addition, it also had efficient and stable phosphorus removal ability, and the removal efficiency of total phosphorus reached 81%. Pyrite substrate promoted the denitrification capacity of microorganisms in the bioretention system, and the relative abundance of related denitrifying bacteria Pseudomonas and Thiobacillus was 5.7% and 1.6%, respectively.

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更新日期/Last Update: 2022-02-01