Strategy for Utilizing Liquid Waste in the Implementation of Green Productivity in the Palm Oil Industry

Abstract

The crude palm oil industry generally faces problems in managing liquid waste. It can produce a very pungent odour, pollute river flows, damage the air ecosystems, and cause health problems for communities around the river, such as skin irritation. Therefore, there needs to be an alternative technology for processing liquid waste to create zero waste and increase company productivity. This study proposes a liquid waste processing strategy to support the implementation of Green Productivity by considering two alternative liquid waste processing methods, namely (1) processing liquid waste into biodiesel and (2) building a biogas power plant (PLTBg). One of the waste processing techniques is chosen based on the calculation of the Environment Performance Indicator (EPI) index and the Green Productivity Ratio (GPI). The GPI indicators include materials, labour, energy, maintenance and waste. The EPI indicators considered include relevance, accuracy analysis, measurability and comparability. The results of measuring these five indicators indicate that the second alternative delivers the highest total productivity value, making it feasible for implementation. Furthermore, steps to improve the company's productivity are proposed. Applying this technology will increase the industry's role in running green businesses and sustainable practices.