The application of electro-coagulation in biodiesel wastewater treatment

Syed Mohd, Syed Ahmad Fauzan and Daud, Zawawi and Mohd Asharuddin, Syazwani and Hassan, Azrul (2020) The application of electro-coagulation in biodiesel wastewater treatment. In: Water and Environmental Issues. Penerbit UTHM, pp. 76-83. ISBN 978-967-2183-94-5

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A large quantity of oily wastewater is generated by biodiesel refineries which results in terrible environmental pollution and resource utilization problems. This wastewater must be treated before being released into the environment due to it normally rich in biological oxygen demand (BOD) and chemical oxygen demand (COD) which usually have damaging and harmful effects on plants, sea, river as well as surface and groundwater sources. Conventional biodiesel wastewater treatment methods such as gravity separation and skimming, air flotation, coagulation, de-emulsification and flocculation, posses several disadvantages including high operation cost, low efficiency, corrosion and recontamination problems. Indeed, most of these conventional methods unable to remove the micron or submicron sized oil droplets efficiently. Currently, new processes for efficient and adequate treatment of various industrial wastewaters with relatively low operating costs have been developed to meet the strict environmental regulations. At this point, the electrocoagulation process has attracted a great deal of attention in treating industrial wastewaters because of its versatility and environmental compatibility. Therefore, in this chapter, the advatages and application of electro-coagulation techniques were reviewed and discussed.

Item Type: Book Section
Uncontrolled Keywords: Water Quality Management; Natural resources—Management; Air quality management; Conservation of natural resources; Environmental protection; Government publications-- Malaysia
Subjects: T Technology > TD Environmental technology. Sanitary engineering
T Technology > TD Environmental technology. Sanitary engineering > TD201-500 Water supply for domestic and industrial purposes
Divisions: Faculty of Civil Engineering and Built Environment > Department of Civil Engineering : Water and Environmental Engineering
Depositing User: Mrs. Siti Noraida Miskan
Date Deposited: 23 Nov 2021 07:10
Last Modified: 23 Nov 2021 07:10

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