A novel filter-type constructed wetland for secondary effluent treatment: Performance and its microbial mechanism

被引：36
作者：
Tao, Zhengkai [1 ]
Jing, Zhaoqian [1 ]
Tao, Mengni [1 ]
Kong, Yu [2 ]
Guan, Lin [2 ]
Jia, Qiusheng [1 ]
机构：
[1] Nanjing Forestry Univ, Coll Civil Engn, Nanjing 210037, Peoples R China
[2] Nanjing Municipal Design & Res Inst Co Ltd, Nanjing 210008, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2023年 / 380卷
关键词：
Constructed wetland; Wastewater treatment; Nitrogen; Composite filler; Microbial community; BACTERIAL COMMUNITY; NITROGEN REMOVAL; WATER TREATMENT; EMISSION; CARBON;
D O I：
10.1016/j.biortech.2023.129075
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
A novel filter-type constructed wetland was constructed by combining plastic fillers and mineral fillers for secondary effluent treatment. Findings showed that TN, TP and COD removal in the constructed wetland with composite fillers (CFCW) was 3.9%, 8.0% and 3.5% higher than that of constructed wetland with ordinary gravel fillers (CW) in the stable phase, respectively. CFCW showed better pollutants removal when dealing with higher influent concentrations and hydraulic loading. The main functional bacteria in two systems were significantly different (p < 0.05). Composite fillers could change the dominant genera, enhance genera activity and increase genera quantity. Denitrification (e.g., Pseudorhodobacter, Zoogloea, Pseudarthrobacter), nitrification (e.g., Devosia, Nitrospira), heterotrophic nitrification-aerobic denitrification (e.g., Paracoccus) and partial denitrification (e.g., g__Simplicispira) in CFCW provided diverse nitrogen metabolism pathways, resulting in higher nitrogen removal. The novel filter-type constructed wetland is suitable for the advanced treatment of sewage treatment plant effluent with enhanced pollutants removal and exuberant microorganisms.
引用
收藏
页数：9
相关论文
共 35 条
[1]  
Beatriz G., 2018, BIOTECHNOL REP-AMST, V19
[2]   Unveiling changes of microbial community involved in N and P removal in constructed wetlands with exposing to silver nanoparticles [J].
Cao, Chong ;
Huang, Juan ;
Yan, Chun-Ni .
JOURNAL OF HAZARDOUS MATERIALS, 2022, 432
[3]   Treatment of heavily polluted river water by tidal-operated biofilters with organic/inorganic media: Evaluation of performance and bacterial community [J].
Chang, Junjun ;
Mei, Jian ;
Jia, Wei ;
Chen, Jinquan ;
Li, Xuan ;
Ji, Bohua ;
Wu, Haiming .
BIORESOURCE TECHNOLOGY, 2019, 279 :34-42
[4]   Optimizing of operation strategies of the single-stage partial nitrification-anammox process [J].
Chen, Guangjiao ;
Zhang, Yanlong ;
Wang, Xingfa ;
Chen, Feng ;
Lin, Lan ;
Ruan, Qizhen ;
Wang, Yuzheng ;
Wang, Feifei ;
Cao, Wenzhi ;
Chiang, Penchi .
JOURNAL OF CLEANER PRODUCTION, 2020, 256
[5]   Vertical-flow constructed wetland based on pyrite intensification: Mixotrophic denitrification performance and mechanism [J].
Chu, Yifan ;
Liu, Wei ;
Tan, Qiyang ;
Yang, Lingli ;
Chen, Jinmei ;
Ma, Lin ;
Zhang, Yi ;
Wu, Zhenbin ;
He, Feng .
BIORESOURCE TECHNOLOGY, 2022, 347
[6]   Wastewater treatment and simultaneous production of algal lipids in sequencing batch reactors containing a microalgal-bacterial consortium [J].
Du, Yuan-da ;
Qin, Meng-yu ;
Shu, Li ;
Zou, Yan-ling ;
Wang, Jie ;
Lv, Zhe ;
Xu, Fei ;
Wang, Qian ;
Zhao, Cong-cong ;
Zhang, Huan-xin ;
Kong, Qiang .
INTERNATIONAL BIODETERIORATION & BIODEGRADATION, 2022, 175
[7]   Mediation of functional gene and bacterial community profiles in the sediments of eutrophic Chaohu Lake by total nitrogen and season [J].
Fan, Yang-Yang ;
Li, Bing-Bing ;
Yang, Zong-Chuang ;
Cheng, Yuan-Yuan ;
Liu, Dong-Feng ;
Yu, Han-Qing .
ENVIRONMENTAL POLLUTION, 2019, 250 :233-240
[8]   Enhanced nitrogen removal of constructed wetlands by coupling with the bioelectrochemical system under low temperature: Performance and mechanism [J].
Fang, Ying-ke ;
Wang, Hong-cheng ;
Han, Jing-long ;
Li, Zhi-ling ;
Wang, Ai-jie .
JOURNAL OF CLEANER PRODUCTION, 2022, 350
[9]   Development of Heliconia latispatha inconstructed wetlands, for the treatment of swine/domestic wastewater in tropical climates, with PET as a substitute for the filter medium [J].
Fernandez-Echeverria, E. ;
Sandoval Herazo, L. C. ;
Zurita, F. ;
Betanzo-Torres, E. ;
Sandoval-Herazo, M. .
REVISTA MEXICANA DE INGENIERIA QUIMICA, 2022, 21 (02)
[10]   Role of heterotrophic nitrifiers and aerobic denitrifiers in simultaneous nitrification and denitrification process: a nonconventional nitrogen removal pathway in wastewater treatment [J].
Gupta, R. K. ;
Poddar, B. J. ;
Nakhate, S. P. ;
Chavan, A. R. ;
Singh, A. K. ;
Purohit, H. J. ;
Khardenavis, A. A. .
LETTERS IN APPLIED MICROBIOLOGY, 2022, 74 (02) :159-184
1234