Potential Fruit and Vegetable Waste as Laundry Liquid Waste Treatment

Abstract

The laundry industry is one of the largest producers of wastewater and contains high concentrations of chemicals that are not environmentally friendly. Fruit and vegetable waste can be reused through recycling to produce products with higher use and economic value. One of the steps to utilize fruit and vegetable waste is to convert it into eco-enzyme through a simple fermentation technology. This research aims to study the eco-enzyme stability in treating liquid laundry waste. This research is an experiment in a laboratory. The treatments are eco-enzyme raw materials made from fruit oranges waste (E1), vegetables kale waste (E2), and fruits oranges and vegetables kale waste (E3). Then the dilution is carried out with the ratio of eco-enzyme: laundry liquid waste = 1:40. The results showed that: E1 eco-enzyme fruit (orange) can process laundry wastewater phosphate (PO4) of 41.81%, pH of 6.66, BOD of 23.53%, COD of 23.54%, and a TSS of 32.95%. Phosphate (PO4) and pH values have met the quality standards of the Regulation of the Minister of the Environment of the Republic of Indonesia Number 5 of 2014 concerning Wastewater Quality Standards for Business and/or Industrial Activities of Soaps, Detergents, and Vegetable Oil Products.