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All Journal Jurnal Sains Teknologi dan Lingkungan (JSTL) Jurnal Gema Ngabdi
Suwardji Suwardji
Program Studi Ilmu Tanah Fakultas Pertanian Universitas Mataram
Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Education Environmental Science Public Health Social Sciences

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Sosialisasi dan Pelatihan Pemanfaatan Sampah Anorganik Menjadi Media Tanam Vertikultur pada Masyarakat di Gili Air Sukartono Sukartono; Siska Ita Selvia; Lalu Arifin Aria Bakti; Bambang Hari Kusumo; Suwardji Suwardji
Jurnal Gema Ngabdi Vol. 5 No. 3 (2023): JURNAL GEMA NGABDI
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jgn.v5i3.333

Abstract

Gili Air as one of the Small Islands in West Nusa Tenggara (NTB) has various geographical limitations and even has economic dependence on the tourism industry. The large number of tourists has an impact on the amount of waste generated every day. This is not balanced with optimal waste management in Gili Air, where waste from each household and tourism supporting facilities is just piled up, then taken by the transportation service (Gili Care) and disposed of in the TPA (Final Disposal Site) in Lombok Big Island. Waste management on Gili Air requires a large amount of money because you have to pay for transportation by boat. Some local people and owners of tourism-supporting facilities manage their waste by dumping it in pits or burning it. Some of them who know the economic value of inorganic waste sell directly cardboard, used bottles, iron and others to collectors or scavengers themselves. The waste bank in Gili Air has not run optimally, so the reduction in waste generation only comes from selling used goods individually. Based on these various problems, the service team carried out community service activities through outreach and training on the use of inorganic waste to become verticultural planting media which indirectly contributed to household-scale greening in Gili Air. The goal of this activity is to generate enthusiasm and participation from Karang Taruna Gili Air (KTGA) in terms of waste management. This service activity took place enthusiastically and actively involved KTGA, where the evaluation results showed that there was an increase in knowledge of 47%. The community's activeness in providing questions and responses is an asset for participatory community empowerment in Gili Air.
Pengaruh Biochar Terhadap Mobilitas Merkuri (Hg) Pada Percobaan Pencucian (Leaching) Tertutup: Effect of Biochar on Mercury (Hg) Mobility in a Closed Leaching Experiment Baiq Eliza Prizma Mahardhika; Sukartono Sukartono; I Gusti Made Kusnarta; Suwardji Suwardji; Fahrudin Fahrudin
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 3 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v9i3.485

Abstract

This study aims to determine the effect of biochar application on Hg mobility in a closed leaching experiment using gold processing tailings contaminated soil. The factorial experiment was set up using a Completely Randomized Design (RBD) which tested three types of biochar (rice husk biochar, coconut shell, and corncob biochar) and three doses of biochar (0.10 tons ha-1 and 15 tons ha-1). The PVC column containing a mixture of polluted soil and dibiochar was washed four times with deionized water for a total of 1090 ml of watering. The results showed that the application of biochar can reduce the mobility of mercury (Hg) in small scale gold processing tailings polluted soils. The dissolved Hg concentration in the leachate decreased with increasing dose of biochar application. Leachate from corn cob biochar (15 tons ha-1) treatment showed the lowest Hg concentration of 0.0012 ppm but was not significantly different from leachate from the soil column that was applied coconut shell and rice husk biochar. The concentration of Hg in the leachate for all biochar treatments ranged from 0.0012 - 0.0062 ppm, significantly different from the leachate concentration of the soil column without biochar, which was 1.62 ppm. This provides an indication that biochar can reduce the leaching rate, so that the concentration of Hg is not much leached into the soil. Therefore, biochar can be used as a soil enhancer in remediation of mercury (Hg) polluted soil so that it can slow down the mobility of mercury (Hg) so that it has a small impact on the environment.
Co-Authors Baiq Eliza Prizma Mahardhika Bambang Hari Kusumo Fahrudin Fahrudin I Gusti Made Kusnarta Lalu Arifin Aria Bakti Siska Ita Selvia Sukartono Sukartono Sukartono