教師資料查詢 | 類別: 期刊論文 | 教師: 李奇旺 Chi-Wang Li (瀏覽個人網頁)

標題:Electrochemical crystallization for phosphate recovery from an electronic industry wastewater effluent using sacrificial iron anodes
學年
學期
出版(發表)日期2020/12/10
作品名稱Electrochemical crystallization for phosphate recovery from an electronic industry wastewater effluent using sacrificial iron anodes
作品名稱(其他語言)
著者Natacha Martina; Vinh Ya; Nattapong Leewiboonsilp; Kwang-Ho Choo; Pongsak (Lek) Noophan; Chi-Wang Li
單位
出版者
著錄名稱、卷期、頁數Journal of Cleaner Production 276, 124234
摘要With the circular economy in mind, recovery of iron phosphate, i.e., ferric phosphate or ferrous phosphate, from industrial wastewater is realized and the products recovered could be used in the synthesis of lithium iron phosphate for Li-ion secondary batteries. The formation of iron phosphate highly depends on pH and dissolved oxygen (DO) level. The present study focused on the phosphorus removal and recovery from the industrial wastewater effluent of a semiconductor plant by crystallization of iron phosphate. P recovery as iron phosphate was explored by means of electrochemical crystallization using a sacrificial iron anode under various DO levels (air sparging, mechanical mixing, and N2 purging) and pH values (both initial and fixed pH). Under the nitrogen purging condition, the P removal linearly increased with increasing of the Fe:P molar ratios, reaching 100% when the Fe:P molar ratio equals 1.5, which is the stoichiometric molar ratio of ferrous phosphate. The ferrous phosphate particles quickly settled and the crystalline structure was confirmed as vivianite. The final product obtained at pH 6.0 was composed of 82 wt% of vivianite. The operational cost of the electrochemical process was estimated to be only 23.5% of the costs required by the fluidized chemical crystallization process reported in the literature.
關鍵字Electrochemical crystallization;Electronic industry;Iron phosphate;Phosphate recovery;Vivianite
語言英文(美國)
ISSN0959-6526
期刊性質國外
收錄於SCI;
產學合作
通訊作者
審稿制度
國別荷蘭
公開徵稿
出版型式,紙本
相關連結
SDGs
  • 潔淨水與衛生
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