The nickel extraction efficiency by means of liquid-liquid extraction (LLE) method was studied using response surface methodology; six parameters were identified as influential factors on nickel removal efficiency as the response. However, on screening experiments, only two factors were selected: pH and di-(2-ethylhexyl) phosphoric acid (D2EHPA) concentration. Face-centered composite design (FCCD) was applied in order to determine the optimum conditions for nickel removal by LLE. The results of FCCD showed that a second-order model described the relationship between the factors and nickel removal properly. Results showed that the optimum conditions are pH 1.1 and D2EHPA concentration 0.2 M, where 95.57% of nickel removal was achieved.
机构:
Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Chinese Res Inst Environm Sci, Dept Urban Water Environm Res, Beijing 100012, Peoples R ChinaChinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Song, Yonghui
Wei, Jian
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Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Chinese Res Inst Environm Sci, Dept Urban Water Environm Res, Beijing 100012, Peoples R ChinaChinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Wei, Jian
Ma, Yinchen
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Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Chinese Res Inst Environm Sci, Dept Urban Water Environm Res, Beijing 100012, Peoples R ChinaChinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Ma, Yinchen
Zeng, Ping
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Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Chinese Res Inst Environm Sci, Dept Urban Water Environm Res, Beijing 100012, Peoples R ChinaChinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Zeng, Ping
Kong, Minghao
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Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
Chinese Res Inst Environm Sci, Dept Urban Water Environm Res, Beijing 100012, Peoples R ChinaChinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
机构:
Sichuan Univ, Dept Chem Engn, Chengdu 610065, Peoples R ChinaSichuan Univ, Dept Chem Engn, Chengdu 610065, Peoples R China
Liu, Hui
Dai, Shuang
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Sichuan Univ, Dept Chem Engn, Chengdu 610065, Peoples R ChinaSichuan Univ, Dept Chem Engn, Chengdu 610065, Peoples R China
Dai, Shuang
Li, Jun
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Sichuan Univ, Dept Chem Engn, Chengdu 610065, Peoples R ChinaSichuan Univ, Dept Chem Engn, Chengdu 610065, Peoples R China
Li, Jun
Ma, Rui
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Sichuan Univ, Dept Chem Engn, Chengdu 610065, Peoples R ChinaSichuan Univ, Dept Chem Engn, Chengdu 610065, Peoples R China
Ma, Rui
Cao, Yan
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Sichuan Univ, Dept Chem Engn, Chengdu 610065, Peoples R ChinaSichuan Univ, Dept Chem Engn, Chengdu 610065, Peoples R China
Cao, Yan
Wang, Gang
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Shandong Univ Sci & Technol, Mine Disaster Prevent & Control Minist, State Key Lab Breeding Base, Qingdao 266590, Peoples R ChinaSichuan Univ, Dept Chem Engn, Chengdu 610065, Peoples R China
Wang, Gang
Komarneni, Sridhar
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Penn State Univ, Dept Ecosyst Sci & Management, University Pk, PA 16802 USA
Penn State Univ, Mat Res Lab, Mat Res Inst, University Pk, PA 16802 USASichuan Univ, Dept Chem Engn, Chengdu 610065, Peoples R China
Komarneni, Sridhar
Luo, Jianhong
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Sichuan Univ, Dept Chem Engn, Chengdu 610065, Peoples R ChinaSichuan Univ, Dept Chem Engn, Chengdu 610065, Peoples R China