Pre-treatment potential of electro-coagulation process using aluminum and titanium electrodes for instant coffee processing wastewater
This study aimed at investigating the potential of electrocoagulation (EC) process using Al-Al and Al-Ti electrodes for the pre-treatment of instant coffee processing wastewater. Effects of various operating conditions, including cell voltage, time of treatment, inter-electrode distance, pH of solu...
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Centre for Science and Technology, IAIN Surakarta
2019-12-01
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doaj-29ec28c571fd4ca7995b6e8dbb63b0b52021-02-02T10:55:42ZengCentre for Science and Technology, IAIN SurakartaSustinere: Journal of Environment and Sustainability2549-12452549-12532019-12-013310.22515/sustinere.jes.v3i3.8787Pre-treatment potential of electro-coagulation process using aluminum and titanium electrodes for instant coffee processing wastewaterHoang Quang Huy Phan0Nguyen Xuan Hoan1Nhat Huy Nguyen2Nguyen Duc Dat Duc3Nguyen Thi Ngoc Anh4Nguyen Thi Que5Nguyen Thi Thuy6Faculty of Environment - Natural Resources and Climate Change, Ho Chi Minh City University of Food Industry, VietnamFaculty of Environment - Natural Resources and Climate Change, Ho Chi Minh City University of Food Industry, VietnamFaculty of Environment and Natural Resources, Ho Chi Minh City University of Technology, VietnamFaculty of Environment - Natural Resources and Climate Change, Ho Chi Minh City University of Food Industry, VietnamFaculty of Environment - Natural Resources and Climate Change, Ho Chi Minh City University of Food Industry, VietnamFaculty of Environment - Natural Resources and Climate Change, Ho Chi Minh City University of Food Industry, VietnamFaculty of Environment - Natural Resources and Climate Change, Ho Chi Minh City University of Food Industry, Vietnam This study aimed at investigating the potential of electrocoagulation (EC) process using Al-Al and Al-Ti electrodes for the pre-treatment of instant coffee processing wastewater. Effects of various operating conditions, including cell voltage, time of treatment, inter-electrode distance, pH of solution, solution conductivity and agitation speed on the removals of chemical oxygen demand (COD) and color were considered. The maximum removal of COD and color was achieved at 87% and 99%, respectively, corresponding to COD and color in the effluents of 359-384 mg/L and 58-101 Pt-Co. Biodegradability of treated wastewater was significantly improved since BOD5/COD increased from initial value of 0.42 to 0.65 after treatment. Nether mixing nor adding of electrolyte was recommended. Moreover, the COD removal kinetics during EC process appeared to follow the first-order kinetic model. The operating costs were also determined as a reference for cost assessment of the treatment. https://sustinerejes.com/index.php/a/article/view/87ElectrocoagulationCoffee wastewater (CFW)COD removalColor removalOperating cost |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hoang Quang Huy Phan Nguyen Xuan Hoan Nhat Huy Nguyen Nguyen Duc Dat Duc Nguyen Thi Ngoc Anh Nguyen Thi Que Nguyen Thi Thuy |
spellingShingle |
Hoang Quang Huy Phan Nguyen Xuan Hoan Nhat Huy Nguyen Nguyen Duc Dat Duc Nguyen Thi Ngoc Anh Nguyen Thi Que Nguyen Thi Thuy Pre-treatment potential of electro-coagulation process using aluminum and titanium electrodes for instant coffee processing wastewater Sustinere: Journal of Environment and Sustainability Electrocoagulation Coffee wastewater (CFW) COD removal Color removal Operating cost |
author_facet |
Hoang Quang Huy Phan Nguyen Xuan Hoan Nhat Huy Nguyen Nguyen Duc Dat Duc Nguyen Thi Ngoc Anh Nguyen Thi Que Nguyen Thi Thuy |
author_sort |
Hoang Quang Huy Phan |
title |
Pre-treatment potential of electro-coagulation process using aluminum and titanium electrodes for instant coffee processing wastewater |
title_short |
Pre-treatment potential of electro-coagulation process using aluminum and titanium electrodes for instant coffee processing wastewater |
title_full |
Pre-treatment potential of electro-coagulation process using aluminum and titanium electrodes for instant coffee processing wastewater |
title_fullStr |
Pre-treatment potential of electro-coagulation process using aluminum and titanium electrodes for instant coffee processing wastewater |
title_full_unstemmed |
Pre-treatment potential of electro-coagulation process using aluminum and titanium electrodes for instant coffee processing wastewater |
title_sort |
pre-treatment potential of electro-coagulation process using aluminum and titanium electrodes for instant coffee processing wastewater |
publisher |
Centre for Science and Technology, IAIN Surakarta |
series |
Sustinere: Journal of Environment and Sustainability |
issn |
2549-1245 2549-1253 |
publishDate |
2019-12-01 |
description |
This study aimed at investigating the potential of electrocoagulation (EC) process using Al-Al and Al-Ti electrodes for the pre-treatment of instant coffee processing wastewater. Effects of various operating conditions, including cell voltage, time of treatment, inter-electrode distance, pH of solution, solution conductivity and agitation speed on the removals of chemical oxygen demand (COD) and color were considered. The maximum removal of COD and color was achieved at 87% and 99%, respectively, corresponding to COD and color in the effluents of 359-384 mg/L and 58-101 Pt-Co. Biodegradability of treated wastewater was significantly improved since BOD5/COD increased from initial value of 0.42 to 0.65 after treatment. Nether mixing nor adding of electrolyte was recommended. Moreover, the COD removal kinetics during EC process appeared to follow the first-order kinetic model. The operating costs were also determined as a reference for cost assessment of the treatment.
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topic |
Electrocoagulation Coffee wastewater (CFW) COD removal Color removal Operating cost |
url |
https://sustinerejes.com/index.php/a/article/view/87 |
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