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Implementasi Sistem Hidroponik Ramah Lingkungan Menggunakan Galon dan Botol Bekas untuk Peningkatan Produksi Tanaman Sayur di Desa Balongwono Nur Mila Eka Zaliyanty; Ivan Ardiansyah; Ananda Asa Firstha Affandi; Hendra Maulana
Jurnal Kabar Masyarakat Vol. 2 No. 3 (2024): Agustus : JURNAL KABAR MASYARAKAT
Publisher : Institut Teknologi dan Bisnis Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/jkb.v2i3.2297

Abstract

In 2023, Indonesia generated 32.035 million tons of waste per year, with 49.6% coming from household waste (SIPSN, 2023). Balongwono Village in Mojokerto Regency, East Java, also faces waste problems and is an agricultural area with the majority of the population working as farmers. Vegetable production in this village is often suboptimal due to limited land and conventional farming methods. To overcome this problem, a socialization on the benefits and basic techniques of hydroponics was conducted, training on making hydroponic installations from used items, and mentoring to ensure the success of the system. The hydroponic system that utilizes used gallons and bottles as growing media aims to increase vegetable production in Balongwono Village. The results show that plants such as kale and pakcoy grow faster and fresher than conventional methods. In addition to increasing yields, this system also reduces plastic waste and lowers production costs. The implementation of this hydroponic method provides double benefits: increasing vegetable production and reducing waste. This method can be a reference for other villages with similar problems, contributing to environmental sustainability at large.
Characterization of Activated Carbon from Palm Oil Solid Waste Using HCl Activation and Carbonization Technique Sani Sani; Nurul Widji Triana; Ika Nawang Puspitawati; Nur Mila Eka Zaliyanty; Mochammad Arip Pancar Agung
Jurnal Teknik Kimia Vol. 20 No. 2 (2025): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnaltekkim.v20i2.41

Abstract

The increasing volume of palm oil solid waste in Indonesia offers an opportunity for valorization into high-value materials. This study explores the potential of converting palm oil waste—comprising empty fruit bunches, shells, and fibers—into activated carbon through hydrochloric acid activation. The carbonization process was varied across five temperature levels (250–450 °C) and durations (60–120 minutes) to determine optimal conditions that meet the criteria of SNI 06-3730-2021. Post-carbonization, chemical activation was conducted using a 20% HCl solution. The most favorable result was obtained at 450 °C for 105 minutes, yielding activated carbon with 81.68% fixed carbon, 3.85% moisture, 10.29% volatile matter, and 4.18% ash content. Furthermore, adsorption capacities reached 763.98 mg/g for iodine and 178.82 mg/g for methylene blue. These findings suggest that palm oil waste can be effectively transformed into activated carbon that satisfies national quality standards.