Putra, Heri Shatriadi Candra
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Styrofoam Biodegradation By Soil Bacteria Isolated From Landfill Site In Hospital: Literature Review Putra, Heri Shatriadi Candra; Rashid, Norhashima Abd; Said, Faridah Mohd
International Journal of Health Sciences Vol. 3 No. 1 (2025): IJHS : International Journal of Health Sciences
Publisher : Asosiasi Guru dan Dosen Seluruh Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59585/ijhs.v3i1.587

Abstract

Introduction: Styrofoam is commonly used in food and beverage packaging. Styrofoam or polystyrene is made from styrene and benzene. The migration of benzene from packaging materials into foods can cause various diseases. One effort to reduce styrofoam waste is possible by searching for bacteria that can degrade styrofoam naturally. Potential source of place where the bacteria will be discovered is the landfill site in hospital. Material and Methods: This research applied exploratory methods through descriptive qualitative analysis. The stages of the study consisted of biodegradation testing using the Winogradsky method, calculation of the percentage of dry weight loss of Styrofoam, physical analysis using Scanning Electron Microscope (SEM), and analysis of changes in functional groups using FTIR. This study discovered 4 species of polystyrene degrading bacteria, namely Pseudomonas aeruginosa, Bacillus amyloliquefaciens, Bacillus cereus and Bacillus firmus. Results: The percentage of dry weight reduction of polystyrene was shown in the eighth week which reached 18.23% and physical analysis by Scanning Electron Microscope (SEM) indicated that the process of degradation by soil bacteria resulted in formation of pores on the surface of styrofoam. Conclusion: Functional group analysis produced a simpler functional groups after the degradation as marked by the appearance of C-O functional groups at wavenumber of 1,030.02 cm-1. The use of these polystyrene degrading bacteria from Sarimukti landfill can be recommended as an environmentally friendly method for reducing styrofoam waste.
Performance of Waste Water Treatment Plans in Hospitals : Literature Review Putra, Heri Shatriadi Candra; Rashid, Norhashima Abd; Said, Faridah Mohd
International Journal of Health Sciences Vol. 1 No. 4 (2023): IJHS : International Journal of Health Sciences
Publisher : Asosiasi Guru dan Dosen Seluruh Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59585/ijhs.v1i4.204

Abstract

Introduction: Hospitalrecyclingwhich cannot function normally and there are calculation errors in thewater mass balanceTo minimize the impact of waste water on environmental pollution, an evaluation of the IPAL unit is carried out. The aim of this research is to evaluate the IPAL and provide suggestions related to optimizing wastewater treatment at Hospital to improve wastewater removal performance. Material and Methods: This study refers to design criteria and quality standards based on literature review with PICO Analysis and evaluation of existing conditions using secondary and primary data. Based on the results of the Wastewater Treatment Plant (WWTP) evaluation, it was found that the waste water discharge was 166.3 m3/day, had an efficiency that was in the very efficient and efficient category in processing waste water pollutant parameters so that the waste water treatment process ran well, and there was equalization of the first and second settling tanks. , activated sludge, trickling filter, filtration, disinfection and recycling did not meet the design criteria so recalculations were carried out.. Results: The solution provided is to tighten monitoring and testing of the condition of the quality of wastewater coming out of the WWTP unit by changing the sampling test method, re-measuring the quality of influent wastewater, improving the workings of the IPAL unit according to the applicable Standart Operation Procedure (SOP). Conclusion: After evaluating the waste water treatment unit, conclusions can be drawn, among others, based on the results of water quality tests and the work performance of the waste water quality parameters. The waste water quality parameter degradation efficiency is very effective, effective and quite effective and all parameters tested are in accordance with applicable quality standards.