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Recovery phosphate and ammonium from aqueous solution by the process of electrochemically decomposing dolomite
Li, Xuewei1,2; Zhou, Xiaowen3; Yang, Bo1; Wen, Zhen1
2021
Source PublicationCHEMOSPHERE
ISSN0045-6535
Volume262Pages:8
AbstractThe cost-effective recovery of phosphate is of great significance to the mitigation of phosphorus resource depletion crisis. The electrochemical-decomposition of dolomite was developed to recover phosphate and ammonium from aqueous solution. The dolomite ore is mainly composed of CaMg(CO3)(2) (53.73%), CaCO3 (28.93%) and SiO2 (16.59%). The continuous release of Mg2+ and Ca2+ were achieved by electrochemically decomposing dolomite ore, accompanied by the generation of base solution (9.0-10.5). The main factors affecting the recovery performance of phosphate (PO4-P) and ammonium (NH4 -N) are current, initial concentration of PO4-P and NH4-N, initial pH of feed solution and feed rate. For a 30d operation, the recovery rate of PO4-P was maintained at 90-97% and that of NH4-N at 50-60% under optimized operating conditions. The recovered product had low water solubility but high citric-acid-soluble, and was proposed as a slow-release fertilizer for crops. The proposed process as a simple, effective and green route may serve as a new strategy for recovering PO4-P and NH4-N from wastewaters. (C) 2020 Elsevier Ltd. All rights reserved.
KeywordPO4-P and NH4-N recovery Dolomite Electrochemistry Natural minerals
DOI10.1016/j.chemosphere.2020.128357
Language英语
WOS KeywordSWINE WASTE-WATER ; PHOSPHORUS RECOVERY ; STRUVITE CRYSTALLIZATION ; CALCIUM-PHOSPHATE ; MAGNESIUM ; PRECIPITATION ; FERTILIZER ; REMOVAL ; HYDROXYAPATITE ; CHALLENGES
Funding ProjectNational Natural Science Foundation of China[21777106] ; National Major Science & Technology Program for Water Pollution Control Treatment[2017ZX07202] ; Natural Science Foundation of Guangdong Province, China[2017A030313046] ; Basic Research Project of Shenzhen city, China[JCYJ20170818093429961]
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
Funding OrganizationNational Natural Science Foundation of China ; National Major Science & Technology Program for Water Pollution Control Treatment ; Natural Science Foundation of Guangdong Province, China ; Basic Research Project of Shenzhen city, China
WOS IDWOS:000587290300161
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/42620
Collection中国科学院过程工程研究所
Corresponding AuthorYang, Bo
Affiliation1.Shenzhen Univ, Coll Chem & Environm Engn, Shenzhen 518061, Guangdong, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, Beijing 100085, Peoples R China
Recommended Citation
GB/T 7714
Li, Xuewei,Zhou, Xiaowen,Yang, Bo,et al. Recovery phosphate and ammonium from aqueous solution by the process of electrochemically decomposing dolomite[J]. CHEMOSPHERE,2021,262:8.
APA Li, Xuewei,Zhou, Xiaowen,Yang, Bo,&Wen, Zhen.(2021).Recovery phosphate and ammonium from aqueous solution by the process of electrochemically decomposing dolomite.CHEMOSPHERE,262,8.
MLA Li, Xuewei,et al."Recovery phosphate and ammonium from aqueous solution by the process of electrochemically decomposing dolomite".CHEMOSPHERE 262(2021):8.
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