Performance and Bacteria Communities of a Full-Scale Constructed Wetland Treating the Secondary Effluent after Multi-Years' Operation

被引：2

作者：

Song, Siyuan ^{[1
,2
]}

Wang, Baogui ^{[3
]}

Yang, Tangwu ^{[1
,4
]}

Gu, Yumei ^{[1
]}

Sheng, Sheng ^{[2
]}

Zhao, Dehua ^{[1
]}

An, Shuqing ^{[1
,4
]}

Li, Aimin ^{[1
]}

机构：

[1] Nanjing Univ, Sch Environm, Sch Life Sci, State Key Lab Pollut Control & Resource Reuse, Nanjing 210046, Peoples R China

[2] PowerChina Huadong Engn Corp Ltd, Hangzhou 311122, Peoples R China

[3] Cent Plains Environm Protect Co LCD, Zhengzhou 450000, Peoples R China

[4] Nanjing Univ Ecol Res Inst Changshu NJUecoRICH, Changshu 215500, Peoples R China

来源：

PROCESSES | 2023年 / 11卷 / 05期

关键词：

full-scale constructed wetland; secondary effluent; bacterial community; multi-years' of operation; WASTE-WATER TREATMENT; NITROGEN REMOVAL; MICROBIAL COMMUNITY; PHOSPHORUS REMOVAL; AERATION; RIVER;

D O I：

10.3390/pr11051469

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Constructed wetlands (CWs) had been widely used to treat the tailwater from sewage treatment plants. However, the enduring effectiveness of CWs was still unclear. Therefore, this study aimed to investigate the chemical oxygen demand (COD), ammonia nitrogen (NH4+-N), and total phosphorus (TP) removal efficiencies (RE) of the Hongze CW (HZ-CW) after multi-years' operation. The average COD RE were 7.6% and 15.14% in the 4th and 5th year, respectively. The NH4+-N RE was 78.33% and 46.04% in the 4th and 5th year, respectively, while the TP RE remained high at 66.86% and 64.68%. The high-throughput sequencing analysis revealed that the bacterial community of HZ-CW at the end of the 5th year exhibited a substantial abundance and diversity, and Proteobacteria and Bacteroidota were the dominant phyla with a relative abundance of 33.75-71.8% and 11.28-24.53% in different zones of HZ-CW. Ammonia oxidizing organisms (AOMs) presented much higher relative abundance (0.43-0.79%) in aerated pond (AP) and four free water surface flow CWs (FWS1-FWS4) than those of anammox bacteria, indicating the dominant role of nitrification in NH4+-N removal.

引用

页数：12

共 42 条

[41] Ultrafiltration membrane full-scale experience status after 9 years of operation and large scale plant capacity 100 000 m3/day
Laîné, JM
Vial, D
22ND INTERNATIONAL WATER SERVICES CONGRESS AND EXHIBITION, 2000, 18 (1-2): : 419 - 421
[42] Ultrafiltration membrane full-scale experience:: status after 10 years of operation and large-scale plant capacity 100,000 m3/day
Laîné, JM
Durand-Bourlier, L
Vial, D
WATER SCIENCE & TECHNOLOGY: WATER SUPPLY, VOL 1, NO 4, 2001, : 265 - 270

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