Design and development of a website-based palm oil industry liquid waste monitoring system

Abstract

Liquid waste produced by palm oil mills needs to be monitored regularly to avoid pollution and negative impacts of waste before being discharged into rivers. Monitoring of pollution levels of palm oil effluent is carried out in wastewater disposal ponds. In this study, a website-based prototype of a palm oil effluent monitoring system was designed and built. This prototype monitors the level of pollution of liquid waste in the liquid waste disposal pond. Monitoring the level of pollution of this liquid waste takes a sample of waste at one of the palm oil mills located in Kuantan Singingi, Riau. This research uses a pH sensor and a water turbidity sensor. Provision of calcium oxide is carried out if the level of acidity of the liquid waste and the level of turbidity of the liquid waste is in poor condition. The measurement results are then displayed directly on the website that was built. From the results of field tests, it was found that the liquid waste is very acidic, so it is necessary to add calcium oxide to reduce the acid content.