Technical evaluation of leachate treatment plant at Klotok Landfill Kediri in 2017

Landfilling is a conventional waste treatment method that is widely used in Indonesia because of its technical feasibility, ease of operation, minimum supervision, and low operating costs. However, landfilling processing techniques lead to more leachate production than other processing methods. The Klotok Landfill in Kediri City has a leachate treatment plant that has been operating since 2016. The monitoring of leachate quality is important to be performed in order to evaluate the leachate treatment process. The leachate treatment plant consists of an anaerobic, a facultative, and a maturation ponds. The first year of monitoring was conducted in 2017 with two times of sampling, February and May. The results of the leachate quality monitoring in Klotok Landfill showed that quality were not yet optimal because some effluent parameters of leachate treatment plant were still above the quality standard as regulated in the Indonesian Minister of Environment and Forestry Regulation P.59/Menlhk/Setjen/Kum.1/7/2016. The parameters that did not meet the quality standards were BOD₅, COD, TSS, and Total N. Therefore, it is necessary to improve the efficiency of processing at Klotok Landfill. The improvements that need to be made are measuring the daily parameters and monitoring the microorganisms growing in the treatment unit.