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All Journal Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology Environmental and Toxicology Management (ETM) Industrial and Domestic Waste Management
Wardhani, Widhowati Kesoema
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Immunology & microbiology Public Health

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The Relationship between Households Average Formal Education Levels and Sanitation Practices in Mojo, Surabaya, Indonesia Wardhani, Widhowati Kesoema; Harmin Sulistiyaning Titah; Mas Agus Mardyanto; Eddy Setiadi Soedjono
Industrial and Domestic Waste Management Volume 5 - Issue 1 - 2025
Publisher : Tecno Scientifica Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53623/idwm.v5i1.600

Abstract

This study explored the relationship between households’ average formal education levels and sanitation practices. Although formal education was intended to prepare individuals for personal and professional life situations, local habits and cultural practices could sometimes be more influential than educational background, as evidenced by urinary habits practiced in the country. These habits played a crucial role in determining whether urine was disposed of in the toilet, processed in a septic tank, or directly entered the drainage system when spilled on the bathroom floor. In this study, the definition of sanitation differed from that previously outlined by the Sustainable Development Goals (SDGs). The SDGs defined sanitation based on the percentage of households that used safely managed services, including handwashing facilities. This study, however, focused on excreta disposal, desludging intervals, septic tank types, and urinary habits, such as whether urine was disposed of on the bathroom floor or in the toilet. These factors were chosen for their ability to accurately reflect the actual conditions observed in the study area. A survey was conducted among 100 households, and data were analyzed using Analysis of Variance (ANOVA). The results revealed no relationship between households’ average formal education levels and sanitation practices. This analysis suggested that other factors, such as cultural beliefs and environmental habits, may have influenced sanitation practices.
The Effect of Aeration and Chlorella vulgaris Initial Cell Density on Mercury Removal Dienullah, R Mohammad Alghaf; Titah, Harmin Sulistiyaning; Pratikno, Herman; Purwanti, Ipung Fitri; Wardhani, Widhowati Kesoema
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 20, No 1 (2025): May 2025
Publisher : :Agency for Marine and Fisheries Research and Human Resources, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/squalen.921

Abstract

Research on Chlorella vulgaris is vital due to its rapid growth and versatile habitat adaptability. C. vulgaris is a fast-growing green microalga used for phycoremediation of heavy metals such as mercury which is usually found in gold mining wastewater. This research aims to determine the best mercury removal efficiency with variations in aeration rate, medium concentration, and C. vulgaris inoculum concentration. This research was conducted by cultivating C. vulgaris and examining its response to various parameters in an artificial mercury (II) chloride (HgCl2) solution. Moreover, other parameters such as cell density, pH, temperature, bicarbonate, and dissolved oxygen were monitored over a seven-day experimental period. The highest removal efficiency (61.34%) at a mercury concentration of 0.3 mg/L was found in the variant with a walne medium dose of 1 mL/L, inoculum concentration of 10%, and aeration rate of 3 L/min. This study confirmed the potential of C. vulgaris as an effective agent for heavy metal removal, particularly mercury, and contributed to bioremediation.
Water quality in Malaysia: review Manik Urai, Durian and Geh rivers Zaidi, Nur Syamimi; Tangahu, Bieby Voijant; Ersa, Ghina Rizqina; Wardhani, Widhowati Kesoema; Ramadhany, Putri; Hadibarata, Tony
Environmental and Toxicology Management Vol. 2 No. 2 (2022): Environmental flows and natural resources management
Publisher : Universitas Nahdlatul Ulama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (267.911 KB) | DOI: 10.33086/etm.v2i2.3409

Abstract

Water pollution issues and clean water needs have forced developing countries, such as Malaysia. Relating to clean water demand for covering human activities, water quality index determine several water parameter that presents pollution problem in water. As a water source, clean water in river is a critical concern. River water quality is according to natural process and anthropogenic activities. River water is potential to be contaminated by industrial, domestic and agricultural activities. Thus, in this study, water quality and availability in Manik Urai, Durian and Geh rivers were reviewed. Each pollutants was investigated, for instance BOD, COD, DO, SS, and pH. Range of river water flow was also examined. Total water demand was mentioned. In addition, the impacts of drought in 1990-2016 were assessed. However, review resulted that climate change has severe impact in water supply system.
Co-Authors Dienullah, R Mohammad Alghaf Eddy Setiadi Soedjono Ersa, Ghina Rizqina Harmin Sulistiyaning Titah Herman Pratikno, Herman Ipung Fitri Purwanti Mas Agus Mardyanto Ramadhany, Putri Tangahu, Bieby Voijant Titah, Harmin Sulistiyaning Tony Hadibarata, Tony Zaidi, Nur Syamimi