首页|High-efficiency contaminant removal from hospital wastewater by integrated electrocoagulation-membrane process

High-efficiency contaminant removal from hospital wastewater by integrated electrocoagulation-membrane process

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In this work, high removal of contaminants in hospital wastewater has been achieved using an integration of electrocoagulation (EC) with ultrafiltration (UF) and reverse osmosis (RO). In EC system, Al electrodes were arranged in a monopolar-parallel and bipolar configuration. There are two parameters studied in the EC system, i.e., the configuration of electrodes (2A-2C-2B and 4A-2C-2B) and current densities. The EC-UF system with a configuration of 4A-2 C-2B and a current density of 88.5 A.m~(-2) resulted in high removal of TSS, TDS, BOD, and COD by 95.12 %, 97.53 %, 95.18 %, and 97.88 %, respectively. The effluent quality of the EC-UF was improved by substituting UF with RO membrane. The TSS, TDS, BOD, and COD removal were enhanced to 97.64 %, 99.85 %, 97.88 %, and 98.38 %, respectively. The permeate flux decline in UF membrane system was 47.83 % during 60 min of filtration time due to cake layer fouling on the membrane surface, while in the RO membrane system was 29.49 %. Since the EC-UF and EC-RO showed high efficiency in contaminants removal, these configurations could be used as clean technology to produce clean water for water reuse purposes. At a wastewater capacity of 5 m~3.day~(-1), the operating cost for the EC-UF system was 3.92 US$.m~(-3), while the EC-RO system was 4.02 US$. m~(-3). The increase of wastewater capacity to 50 m~3.day~(-1) reduced the operating cost to 0.89 US$.m~(-3) for the EC-UF system and 0.93 US$.m~(-3) for the EC-RO system.

Clean technologyElectrocoagulationHospital wastewaterUltrafiltrationReuse water

Daswara Djajasasmita、Sutrisno、Alfathah Bania Lubis

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Physiology Department, Faculty of Medicine, Universitas Jenderal Achmad Yani, JL Terusan Jenderal Achmad Yani, Cimahi 40531, Cibeber, Indonesia

Forensic dan Medicolegal Department, Faculty of Medicine, Universitas Jenderal Achmad Yani, JL Terusan Jenderal Achmad Yani, Cimahi 40531, Cibeber, Indonesia

Anesthesiology Department, Faculty of Medicine, Universitas Jenderal Achmad Yani, JL Terusan Jenderal Achmad Yani, Cimahi 40531, Cibeber, Indonesia

2022

10.1016/j.psep.2022.05.071

Transactions of The Institution of Chemical Engineers

Transactions of The Institution of Chemical Engineers

ISSN：0957-5820
年,卷(期)：2022.164
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