Lalu Muhammad Aby Dujana
Department of Environmental Science, Faculty of Mathematics and Natural Sciences, University of Mataram, Indonesia

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Analysis of Liquid Waste Processing in the Animal Skin Cracker (Krupuk Kulit) Industry (Case Study in Seganteng Sub-District) Risma Indriana; Supardiono Supardiono; Lalu Muhammad Aby Dujana
English and Tourism Studies Vol. 4 No. 1 (2026): May
Publisher : Tinta Emas Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59535/ets.v4i1.664

Abstract

Household-scale food industries can contribute to local livelihoods but often generate wastewater that is difficult to manage when treatment facilities are limited. This study analyzed the quality of liquid waste produced by the animal skin cracker (krupuk kulit) industry in Seganteng Urban Village, Cakranegara District, Mataram City, and formulated feasible treatment strategies using a SWOT approach. Wastewater samples were examined for pH, biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), oil and grease, ammonia (NH3-N), and total chromium (Cr). The results were compared with the relevant Indonesian effluent quality standard for leather-related wastewater parameters. The findings showed that pH (7.43), TSS (35.00 mg/L), and total chromium (<0.040 mg/L) complied with the standard, whereas BOD (72.50 mg/L), COD (482.0 mg/L), oil and grease (899 mg/L), and ammonia (5.805 mg/L) exceeded the allowable limits. The SWOT calculation produced X = -0.85 and Y = -1.05, placing the industry in Quadrant IV, which indicates a defensive strategy. Therefore, the recommended actions emphasize gradual improvement through operator awareness, basic source reduction, low-cost treatment units, and technical assistance from government, universities, and environmental stakeholders.
Environmental Health Governance and Human Well-Being in an Urban Transport Terminal: Evidence from Mandalika Terminal, Mataram, Indonesia Dania Hasim; Qisty Dita Amalia; Ifad Wijdan; Lalu Muhammad Aby Dujana; Ernawati Ernawati
Socio-Economic and Humanistic Aspects for Township and Industry Vol. 4 No. 2 (2026): Socio-Economic and Humanistic Aspects for Township and Industry
Publisher : Tinta Emas Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59535/sehati.v4i2.667

Abstract

Public transport terminals are high-exposure urban spaces where mobility, informal economic activity, sanitation, air pollution, noise, and public-service governance intersect. This study evaluated the implementation of five environmental-health principles at Mandalika Terminal, Sandubaya, Mataram, Indonesia, and interpreted the findings as indicators of passenger well-being, occupational exposure, urban service quality, and sustainable transport-tourism connectivity. A descriptive observational design was applied using field observation, structured interviews, questionnaires, checklist scoring, and direct measurements of wastewater, ambient air, and noise parameters. The overall environmental-health score was 73%, indicating good basic performance but incomplete exposure control. Wastewater management was generally adequate, with pH values of 7.40 and 6.79, water temperatures of 30.3 and 29.9 °C, and total dissolved solids of 917 and 138 ppm at the initial and downstream observation points, respectively. This condition was supported by closed drainage, the absence of visible stagnant water, and the absence of strong odour. Solid-waste management was also satisfactory because waste bins, waste segregation, routine collection, and relatively clean public areas were observed. Conversely, air and noise conditions were critical: PM10 (52 ug/m3), PM2.5 (504 ug/m3), CO (78 ppm), and noise (83.3 dBA) exceeded the operational benchmarks used in the assessment. Environmental-health education and community participation were present but remained dependent on static signage and informal compliance. The study shows that Mandalika Terminal has basic environmental-health capacity but requires stronger idling control, periodic emission testing, vegetative buffers, active education, waste standardisation, and cross-sector governance to protect passengers, workers, vendors, and tourists.