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Sulwiyatul K Sani
Universitas Qamarul Huda Badaruddin Bagu
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Journal : Jurnal Sains dan Teknologi

 1 
Analisis Kualitas Air Hygiene Sanitasi Secara Fisika dan Kimia di Perumahan Green View Sunggal Devi Lestari; Imas Masriah; Sulwiyatul Kamariah Sani; Siti Mahmudha; Adelia Yesya Putri Hasibuan
INSOLOGI: Jurnal Sains dan Teknologi Vol. 4 No. 3 (2025): Juni 2025
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v4i3.5309

Abstract

This study analyzed the quality of borehole water in Green View Sunggal Housing located in a rice field area. This research used a descriptive analytical method with a cross-sectional design. Samples were taken from 25 boreholes through a purposive sampling technique divided into three zones: north (8 wells), middle (7 wells), and south (10 wells). The parameters evaluated included physical aspects (temperature, odor, taste, color, turbidity) and chemical aspects (pH, hardness, Fe, Mn, nitrate, nitrite, chloride). Laboratory analysis was carried out at the Medan State Polytechnic following SNI standards and the APHA method, with statistical analysis using SPSS for Pearson correlation and linear regression. The results showed that the majority of parameters met the standards of Permenkes No. 32 of 2017. The parameters of temperature, odor, taste, hardness, manganese, nitrate, nitrite, and chloride reached a compliance level of 100%. However, there were discrepancies in color (92%), turbidity (84%), pH (64%), and iron content (80%). Samples from the southern zone adjacent to rice fields within a 200-meter radius showed significant problems with acidic pH (5.8-6.4) and excessive iron content (1.12-1.42 mg/L). Statistical analysis revealed significant correlations between well depth, distance from rice fields, and water quality. Distance from rice fields was the strongest predictor for nitrate (R² = 0.475) and iron (R² = 0.374). The study concluded that better environmental management is needed to maintain and improve water quality in the residential area.
A Review of Maghemite Nanoparticles as Environmental Sensors Imas Masriah; Devi Lestari; Prisca Caesa Moneteringtyas; Siti Mahmudha; Sulwiyatul Kamariyah Sani
INSOLOGI: Jurnal Sains dan Teknologi Vol. 4 No. 3 (2025): Juni 2025
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v4i3.5354

Abstract

The increasing urgency to monitor and mitigate environmental pollution has driven significant interest in the development of advanced sensing technologies. Nanotechnology presents promising solutions through the application of nanoscale materials, among which maghemite nanoparticles (γ-Fe2O3) have garnered considerable attention due to their unique physicochemical properties, high chemical stability, a large specific surface area, and superparamagnetic behavior, making them suitable for separation, target deployment, and sensor regeneration. It functionalized maghemite nanoparticles to enhance their selectivity toward specific pollutants, including heavy metals ( e.g., Pb2+ and Cd2+) and toxic gases (e.g., NO, NH3, and H2S). These articles present a review of the structural and physicochemical characteristics of maghemite nanoparticles, including commonly applied synthesis methods, sensor mechanism, and their applications in pollutant detection, such as heavy metals and toxic gases. The review also highlights current challenges and outlines future directions for the development of more efficient, affordable, and sustainable maghemite-based sensors for next-generation environmental monitoring systems.
Pengaruh Variasi Konsentrasi Asam pada Pembuatan Bioetanol dari Buah Kumbi (Voacanga foetida (Bl.) ROLFE) melalui Proses Hidrolisis Sulwiyatul Kamariyah Sani
INSOLOGI: Jurnal Sains dan Teknologi Vol. 4 No. 4 (2025): Agustus 2025
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v4i4.5702

Abstract

Currently, the availability of petroleum and natural gas as non-renewable energy sources is steadily decreasing. One alternative energy source that can be developed for the future is bioethanol, as it is renewable and environmentally friendly. The kumbi fruit (Voacanga foetida (Bl.) ROLFE) is a potential raw material for bioethanol production due to its cellulose content, which can be converted into bioethanol. The objective of this study was to investigate the effect of acid concentration on the hydrolysis process in the production of bioethanol from kumbi fruit. In this study, hydrolysis was carried out using HCl at concentrations of 1%, 2%, 3%, 4%, and 5% (v/v) at 70°C for 90 minutes. To determine the reducing sugar content produced, the hydrolysate was analyzed using UV-Vis spectrophotometry. The hydrolysate was then fermented using baker's yeast containing Saccharomyces cerevisiae for 72 hours. The fermentation product was distilled at 78°C, and the obtained bioethanol was analyzed using GC-MS. The results showed that the highest reducing sugar concentration was obtained at 2% acid concentration, amounting to 7.18 g/L, while the highest crude bioethanol yield was 47.64%, achieved at 4% acid concentration with a reducing sugar content of 1.04 g/L.
Co-Authors Adelia Yesya Putri Hasibuan Atri Sri Ulandari Aulia Fitri, Aulia Baiq Erna Devi Lestari Dikki Miswanda Dinda Sari Utami Eka Susilawati Eva Irawati Fitri, Raissa Gabena Indrayani Dalimunthe Haris Munandar Nasution Imas Masriah Lalu Hersika Asmawariza Lalu Muhammad Sadam Husen Lalu Sulaiman Lalu Sulaiman Lalu, Sulaiman Lubis, Minda Sari Menap Muslim Tasim Pangestika, Inten Pratiwi, Pina Budiarti Prisca Caesa Moneteringtyas Robi Febrian Sapitri, Shally Sastrawan, Sastrawan Siti Mahmudha Sulaiman Lalu Tasim, Muslim Vera Yulandasari Yayan Hardiansah Yuniarti, Rafita Zulmai Rani