Preparation of artificial MSW leachate for treatment studies: Testing on black soldier fly larvae process

Abstract

When approaching the study of new processes for leachate treatment, each influencing variable should be kept under control to better comprehend the treatment process. However, leachate quality is difficult to control as it varies dramatically from one landfill to another, and in line with landfill ageing. To overcome this problem, the present study investigated the option of preparing a reliable artificial leachate in terms of quality consistency and representativeness in simulating the composition of real municipal solid waste (MSW) leachate, in view of further investigate the recent treatment process using black soldier fly (BSF) larvae. Two recipes were used to simulate a real leachate (RL): one including chemical ingredients alone (artificial synthetic leachate-SL), and the other including chemicals mixed with artificial food waste (FW) eluate (artificial mixed leachate-ML). Research data were analysed, elaborated and discussed to assess simulation performance according to a series of parameters, such as Analytical representativeness, Treatment representativeness (in this case specific for the BSF larvae process), Recipe relevance, Repeatability and Flexibility in selectively modifying individual quality parameters. The best leachate simulation performance was achieved by the synthetic leachate, with concentration values generally ranging between 97% and 118% of the RL values. When feeding larvae with both RL and SL, similar mortality values and growth performance were observed.

An investigation into the aging of disposable face masks in landfill leachate

“…An artificial leachate was synthesized to simulate landfill conditions according to previous studies with modifications by supplementing the phenolic compounds [12] , [19] . The components of the synthetic leachate are shown in Table S1 (Supplementary).…”

Thermal Characterization of Biochars Produced in Slow Co-Pyrolysis of Spent Coffee Ground and Concentrated Landfill Leachate Residue

“…The SLC was prepared following the procedure proposed in [15]. Hereafter, the sample was oven-dried at 105 • C for 24 h. The oven-dried SLC presented water content and VS/TS (volatile solids/ total solids) ratios of 2% and 51%, respectively.…”