High performance electrocoagulation process in treating palm oil mill effluent using high current intensity application

Mohd Nasrullah; A. W. Zularisam; Santhana Krishnan; Mimi Sakinah; Lakhveer Singh; Yap Wing Fen

doi:10.1016/j.cjche.2018.07.021

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High performance electrocoagulation process in treating palm oil mill effluent using high current intensity application

Energy, Resources and Environmental Technology | Updated：2026-01-06

- High performance electrocoagulation process in treating palm oil mill effluent using high current intensity application
- Chinese Journal of Chemical Engineering Vol. 27, Issue 1, Pages: 208-217(2019)
- Affiliations：
  
  1. 2 Department of Biological and Ecological Engineering, Oregon State University,OR,Corvallis,USA,97333
  2. 3 Department of Physics, Faculty of Science, Universiti Putra Malaysia(UPM), Serdang,Selangor,Malaysia,43400
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.07.021
  CLC：
- Published：2019
- Accepted：
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Mohd Nasrullah, A. W. Zularisam, Santhana Krishnan, Mimi Sakinah, Lakhveer Singh, Yap Wing Fen. High performance electrocoagulation process in treating palm oil mill effluent using high current intensity application[J]. Chin.J.Chem.Eng., 2019, 27(1): 208-217.
DOI：

Mohd Nasrullah, A. W. Zularisam, Santhana Krishnan, Mimi Sakinah, Lakhveer Singh, Yap Wing Fen. High performance electrocoagulation process in treating palm oil mill effluent using high current intensity application[J]. Chin.J.Chem.Eng., 2019, 27(1): 208-217. DOI： 10.1016/j.cjche.2018.07.021.

摘要

Abstract

Electrocoagulation process using high current intensity to treat palm oil mill effluent (POME) was investigated in this study. Various operating parameters such as electrolysis time

inter-electrode distance and initial pH were carried out to determine the efficient process condition on the removal of chemical oxygen demand (COD)

biological oxygen demand (BOD) and suspended solids (SS). The highest treatment was achieved at 50 min with the removal efficiencies for COD

BOD and SS obtained as 85%

83%

and 84%

respectively. More than 50 min treatment showed the fluctuated trends of removal efficiencies which can be considered insignificant. The application of higher current resulted in higher removals of organics while the gas bubbles also assisted in removing the pollutant particles by floatation. In an inter-electrode distance study

the removal efficiency decreased when inter-electrode distance was either higher or lower than 10 mm due to the increase of solution resistance and the decrease of anode active surface area. In initial pH study

it was found that high removal efficiencies were achieved in slightly acidic POME sample rather than in neutral or basic condition. An electrocoagulation process by using the optimum operating parameters was able to remove COD

BOD and SS up to 95%

94% and 96% respectively. The experimental results confirm that application of high current intensity in electrocoagulation provided high treatment efficiency at a reduced reaction time.

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