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Analysis of Food Industry Waste Management Based-On the Food Recovery Hierarchy and 3R Concept – A Case Study in Padang City, West Sumatra, Indonesia

Dewilda Yommi, Fauzi Mhd., Aziz Rizki, Utami Fahrum Dian

Journal of Ecological Engineering

2023

Vol. 24, nr 7

198--208

This research goal was to analyze food industry waste in Padang City based on Food Recovery Hierarchy and 3R concept. Waste sampling refers to SNI 19-3964-1994 with 35 sampling points spread across 6 types of food industries. According to the sampling result which includes waste generation, composition, and characteristics, the management of the food industry in Padang City was studied based on the principles of Food Recovery Hierarchy and 3R Concept. The result of the study showed that waste generated is 27.44 tons/day or equivalent to 250.31 m3/day with the organic waste as the largest contributor having percentage of 85.06%. On the basis of the chemical and biological characteristics, such as water content, C/N ratio, and biodegradability fraction, the waste shows that the most compatible treatment for the waste is biological treatment with composting. First step in the principles of Food Recovery Hierarchy is applying the concept of waste reduction to the waste resulted from each industry in as many as 2.19% or 4.83 kg/day. In the second step, 44.295 or 99.92 kg/day of the waste were given to livestock. The third step involved composting 39.27% or 86.72% of the waste. The fourth step was to do landfilling with 1.77% or 3.90 kg/day of the waste. The fifth step was selling 12.48% or 25.40 kg/day of the waste that has a recycling potential to collectors based on the 3R concept. If these concepts are applied, the waste taken to the dumpsite will decrease from 16.24 tons/day to 0.49 tons/day.

Environmental Impact Evaluation of Improved Market Waste Processing as Part of Municipal Solid Waste Management System Using Life Cycle Assessment Method

Aziz Rizki, Fitria Dina, Ruslinda Yenni

Ecological Engineering & Environmental Technology

2022

Vol. 23, iss. 2

60--69

Payakumbuh City Government has built an Integrated Waste Treatment Plant (TPST) in Ibuh Market as an effort to reduce waste through waste processing by composting. This study aimed to evaluate the environmental impact of the Ibuh Market waste management system with some solid waste management alternatives using the Life Cycle Assessment (LCA) Method. The stages of the research consisted of the measurement and analysis of waste generation, composition, and recycling potential, followed by the application of LCA for composting waste management scenario (scenario 1), with no composting (scenario 2), as well as with composting and recycling (scenario 3). The waste generated by Ibuh Market is 8.99 tons/day, food waste has the highest share in waste composition, amounting to 80.60%, and the waste with the greatest potential to recycle is an inorganic waste by 72.37%. LCA was carried out using the CML-IA impact assessment method. On the basis of the weighting results of the Global Warming Potential, Acidification Potential, and Eutrophication Potential impact categories show that scenario 2 has the highest weight, which is 4.34 × 10-7, scenario 3 has the smallest weight that is 3.73 × 10-7. Hence, scenario 3 was chosen as the best option, because it has the lowest impact weight. The study recommended using biofuels as an alternative to the fuels in the transportation process, applying a modified open windrow aeration system in the composting process at TPST, as well as practicing the sanitary landfill, for becoming a more environmentally friendly solid waste management system.