Open Access

ARTICLE

Optimizing Household Wastes (Rice, Vegetables, and Fruit) as an Environmentally Friendly Electricity Generator

by Deni Ainur Rokhim^1,2, Isma Yanti Vitarisma¹, Sumari Sumari^1,*, Yudhi Utomo¹, Muhammad Roy Asrori¹

1 Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Malang, 65145, Indonesia
2 Chemistry and PKWU, SMAN 3 Sidoarjo, Sidoarjo, 61215, Indonesia

* Corresponding Author: Sumari Sumari. Email:

(This article belongs to the Special Issue: Special Issue in Celebration of JRM 10 Years)

Journal of Renewable Materials 2024, 12(2), 275-284. https://doi.org/10.32604/jrm.2023.043419

Received 02 July 2023; Accepted 09 November 2023; Issue published 11 March 2024

Abstract

The high consumption of electricity and issues related to fossil energy have triggered an increase in energy prices and the scarcity of fossil resources. Consequently, many researchers are seeking alternative energy sources. One potential technology, the Microbial Fuel Cell (MFC) based on rice, vegetable, and fruit wastes, can convert chemical energy into electrical energy. This study aims to determine the potency of rice, vegetable, and fruit waste assisted by Cu/Mg electrodes as a generator of electricity. The method used was a laboratory experiment, including the following steps: electrode preparation, waste sample preparation, incubation of the waste samples, construction of a reactor using rice, vegetable, and fruit waste as a source of electricity, and testing. The tests included measuring electrical conductivity, electric current, voltage, current density, and power density. Based on the test results, the maximum current and voltage values for the fruit waste samples were 5.53 V and 11.5 mA, respectively, with a current density of 2.300 mA/cm² and a power density of 12.719 mW/cm². The results indicate the potential for a future development. The next step in development involves determining the optimum conditions for utilizing of rice, vegetable, and fruit waste. The results of the electrical conductivity test on rice, vegetable, and fruit waste samples were 1.51, 2.88, and 3.98 mS, respectively, with the highest electrical conductivity value found in the fruit waste sample.

---

Keywords

---