International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 05 | May 2023
p-ISSN: 2395-0072
www.irjet.net
Treatment of Hospital Wastewater by Electro-Coagulation Technique Lins Paul Kuriakose1, Muhammed Jefin S2, Rose Mariya Vincent3, Roshna Liss Mathew4, Stephen P Santhosh5 1Assistant professor, Department of Civil Engineering Viswajyothi College of Engineering and Technology,
Vazhakulam, Kerala, India
2,3,4,5UG scholars Department of Civil Engineering, Viswajyothi College of Engineering and Technology,
Vazhakulam, Kerala, India ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - In addition to using a lot of water, hospitals
refractory substances like antibiotics, heavy metals, and petroleum, electrocoagulation has drawn increasing attention because to its low cost, in-situ generation of coagulants, high adsorption capacity, requirement for less land, and ecologically benign characteristics.
also generate a lot of wastewaters that contains several dangerous substances. Not disposing of medical waste appropriately can have detrimental impacts on both neighborhood residents and those who work in clinical institutions. Therefore, this kind of contamination cannot be discharged into the sewer system as untreated effluent.
1.2 Objectives a) To investigate the characteristics of hospital
Our project involves employing electrocoagulation to treat hospital wastewater. Hospital wastewater is treated with aluminum electrodes. After the completion of initial wastewater characteristics study COD and Iron content were 1220 mg/l and 3.32 mg/l. Electrode distance, pH and Electrolysis Time where taken as varying parameters and each parameter had three different values. The optimum value obtained is 4 cm distance, 7 pH and 45 min time. The COD and Iron content after the electrocoagulation was reduced to 230 mg/l and 0.04 mg/l.
wastewater. b) To estimate the concentration of COD & other contaminants in the wastewater. c) To optimise the different factors, including time, pH, and electrode distance. d) To analyse to what extend the purity is achieved by the electro coagulation process using aluminium electrodes.
2. MATERIALS AND METHODS
Key Words: Hospital wastewater, Electrocoagulation, Aluminium electrodes, Contaminants, Optimization
2.1 Sample collection
1.INTRODUCTION
HWW was collected from a hospital in Thodupuzha. 5 liters of water was taken for initial wastewater characteristics study and later 1 liter was taken for electrocoagulation process.
1.1 General Hospital wastewater is one of the most dangerous sources of pollution. The prevalence of pathogens in hospital wastewater highlights the importance of the pollution causes. Electrical coagulation, an electrochemical waste-water treatment method, uses direct current electricity to draw contaminants out of the solution. In this process, a suitable anode is electrolytically oxidized to create a coagulant there instead. Then, it is possible to remove charged ionic species by either letting the waste produce metal hydroxides or by enabling a reaction to the opposite charge. Due to the need for straightforward and simple operation, good sludge settling ability, lower sludge production, larger produced flocks compared to chemical treatment, and reducing secondary pollution by not using chemical compounds, electrocoagulation technology has recently grown in popularity for waste-water treatment. Pollutants like heavy metals can be removed with this technique. To treat synthetic solutions containing
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Fig -1: Effluent collected from Hospital
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