A novel integrated thiosulfate-driven denitritation (TDD) and anaerobic ammonia oxidation (anammox) process for biological nitrogen removal

作者

Qian, Jin; Zhang, Mingkuan; Pei, Xiangjun; 更多内容

期刊:BIOCHEMICAL ENGINEERING JOURNAL ISSN:1369-703X , 年:2018 . 卷:139 页码:68-73

语种: English

原文链接:http://dx.doi.org/10.1016/j.bej.2018.07.025

摘要

An integrated system by combining the thiosulfate-driven denitritation (TDD) and anaerobic ammonia oxidation (anammox) was established for high-rate biological nitrogen removal (BNR) and less N2O generation under 35 degrees C. The anammox contribute to 27% nitrogen removal in the system. The anammox activity was enhanced by four times as temperature increased from 20 to 35 degrees C. The less N2O emission at 35 degrees C compared with that at 20 degrees C is attributed to the involvement of anammox (characterized as no N2O generation) function rather than higher N2O reducing rate under the thermophilic condition. The produced NO3- in anammox can be readily reduced by thiosulfate. The results of this study could enlighten us how to induce a high nitrogen degradation activity with lower sludge yield, in the meanwhile to minimize the greenhouse gas emission and the nitrogenous residues in the BNR process. (C) 2018 Elsevier B.V. All rights reserved.

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关键词
Thiosulfate-driven denitritation (TDD); Nitrous oxide (N2O); Anaerobic ammonia oxidation (anammox); Temperature; Co-existence

附加关键词:
AUTOTROPHIC DENITRIFICATION; SLUDGE TREATMENT; WASTE-WATER; METHANE PRODUCTION; PERFORMANCE; TEMPERATURE; SULFIDE; SYSTEM; PRETREATMENT; GRANULES

作者信息

通讯作者:
     Qian, J , Northwestern Polytech Univ, Res & Dev Inst Shenzhen, Xian, Shaanxi, Peoples R China.; Qian, J , Northwestern Polytech Univ, Sch Nat & Appl Sci, Xian, Shaanxi, Peoples R China.
作者机构:
     [1] [ Qian, Jin; Zhang, Mingkuan; Niu, Juntao ] Northwestern Polytech Univ, Res & Dev Inst Shenzhen, Xian, Shaanxi, Peoples R China.
     [2] [ Qian, Jin; Zhang, Mingkuan; Niu, Juntao ] Northwestern Polytech Univ, Sch Nat & Appl Sci, Xian, Shaanxi, Peoples R China.
     [3] [ Qian, Jin; Pei, Xiangjun ] Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu, Sichuan, Peoples R China.
     [4] [ Pei, Xiangjun ] Chengdu Univ Technol, Sch Environm, Chengdu, Sichuan, Peoples R China.
显示更多 作者邮箱:
     qianjin@nwpu.edu.cn