A study of centrifugation technology for reducing microbial contamination in surface water sample

Jihan Callistasya Purnomo, Rijal Hakiki


Abstract.Cikarang is the largest industrial city in Southeast Asia, making it particularly susceptible to pollution and a decline in the quality of river water. Wastewater from industry, medical waste, and other sources is discharged into the Cilemhabang River, which is black and smells rotten. Monitoring and analyzing data on water quality can help determine the extent of industrial activity-related pollution and the capacity of river water flow to mitigate pollution. The environment, particularly river water resources, can be preserved by further evaluation actions. Objectives:To test for biological parameter in water after centrifugation treatment, the TPC method is used. Centrifugation is a separator that utilizes the difference between the effects of centrifugal force on each molecule of a substance. The examination seeks to reveal the quantity of microorganisms that proliferate and cluster into colonies. Method and results: This study is a laboratory scale research using a centrifuge as the main tool. River water was treated at 6000 rpm and centrifuged 1 minute duration without the addition of Kaolin. Conclusion: The result is in removal efficiency in the range of 81% - 83% for the turbidity parameter and 18% - 28% for the Total Plate Cont of microbial removal. Based on statistical tests using paired T-test, it has a large effect for reducing microbe although it still shows below the quality standard


Centrifuge; River Water; Turbidity; Total Plate Count; Centrifugation Technology

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DOI: http://dx.doi.org/10.33021/jenv.v9i1.4749

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Journal of Environmental Engineering and Waste Management Published by PresUniv Press, in collaboration with IESA and APIK Indonesia Network