Nutrient conversion and recovery from wastewater using electroactive bacteria

被引：57
作者：
Li, Nan [1 ]
Wan, Yuxuan [2 ]
Wang, Xin [2 ]
机构：
[1] Tianjin Univ, Sch Environm Sci & Engn, 92 Weijin Rd, Tianjin 300072, Peoples R China
[2] Nankai Univ, Coll Environm Sci & Engn, MOE Key Lab Pollut Proc & Environm Criteria, Tianjin Key Lab Environm Remediat & Pollut Contro, 38 Tongyan Rd, Tianjin 300350, Peoples R China
来源：
SCIENCE OF THE TOTAL ENVIRONMENT | 2020年 / 706卷
基金：
中国国家自然科学基金;
关键词：
Nitrogen recovery; Ammoniation; DNRA; Phosphorus recovery; Vivianite; Electroactive bacteria; MICROBIAL FUEL-CELL; DISSIMILATORY NITRATE REDUCTION; BIOELECTROCHEMICAL SYSTEMS; SIMULTANEOUS NITRIFICATION; ELECTROLYSIS CELL; AMMONIA RECOVERY; NITROGEN REMOVAL; DENITRIFICATION; PHOSPHORUS; URINE;
D O I：
10.1016/j.scitotenv.2019.135690
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Wastewater is widely recognized as a sink of active nitrogen and phosphorus, and the recovery of both nutrients as fertilizers is widely studied in recent years. Electroactive bacteria increasingly attract attentions in this area because they are able to produce an electric field in microbial electrochemical systems to concentrate ammonium and phosphate for recovery. Importantly, these unique bacteria are able to convert nitrate and nitrite directly to ammonium, maximizing the active nitrogen species capable of recovery. Ferric ions produced by electroactive bacteria can be precipitated with phosphate to recover as vivianite in neutral wastewaters. All these processes employed electroactive bacteria as both nitrate and iron reducer and bioelectric field generator. The mechanism as well as technologies are summarized, and the challenges to further improve their performance are discussed. (C) 2018 Elsevier B.V. All rights reserved.
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页数：9
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