Journal of Applied Science, Engineering and Technology (J. ASET)
Vol. 2 No. 1 (2022): June 2022

The Coagulation-flocculation Process of the Liquid Waste Treatment Plant at a Diagnostic Center in Yogyakarta, Indonesia

Doddy Irawansyah (Inspectorate Office, Tulang Bawang Barat, Lampung Province)
Muhammad Hanif (Unknown)
Sugiyanto Sugiyanto (Unknown)
Dikpride Despa (Unknown)

Article Info

Publish Date
30 Jun 2022

Abstract

The study aimed to obtain the optimum dose of Al2(SO4)3 coagulant, which would be added to the coagulation-flocculation process to redesign a liquid waste treatment plant at a diagnostic center in Yogyakarta, Indonesia. The redesign aims to reduce the content of Chemical Oxygen Demand (COD) contaminants based on Provincial Decree number 65/Y1999 which concerns the Liquid Waste Quality Standards for Health Service Activities in the Province of the Special Region of Yogyakarta. The case was studied at the diagnostic center on Dr. Soetomo street, Bausasran Village, Yogyakarta City. The research method used is quantitative, with data collection techniques in the form of primary and secondary data through survey activities on the research objects in the field. The test and analysis were carried out at the environmental laboratory in Yogyakarta. Based on the jar-test analysis, the redesign process may significantly decrease the COD pollutant from 471.94 mg/liter to 140.763 mg/ liter or 70.17%. By getting the optimum dose of the Al2(SO4)3 coagulant. 

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Journal Info
Journal of Applied Science, Engineering and Technology (J. ASET)
Website

Abbrev

jaset

Publisher

INSTEP Publishing

Subject

Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering

Description

J.ASET is published by INSTEP Publishing Indonesia and it focuses on all subjects in engineering, applied sciences, and vocational studies, they are including but not limited to: Mechanical and Manufacturing Industrial Engineering Chemical and Environmental Engineering Computer and Information ...