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Title: CHARACTERIZING THE MEMBRANE CONCENTRATE FROM LEACHATE TREATMENT: HAZARDOUSNESS EVALUATION AND ITS POTENTIAL TO LANDFILL RECIRCULATION
CHARACTERIZING THE MEMBRANE CONCENTRATE FROM LEACHATE TREATMENT: HAZARDOUSNESS EVALUATION AND ITS POTENTIAL TO LANDFILL RECIRCULATION

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Lidia Kim; Razvan Laurentiu Dinu; Adriana Cuciureanu; Georgiana Cernica; Valeriu Badescu
10.5593/sgem2023V/4.2/s18.01
10.5593/sgem2023v/4.2
1314-2704
978-619-7603-65-1
English
23
4.2
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Recycling
One of the main challenges in treating landfill leachate through membranes is managing the resulting concentrate. Depending on the membrane installation's performance and the stored waste's characteristics, significant quantities of concentrate may remain after leachate treatment. Therefore, it is necessary to identify an optimal disposal or treatment method for it. In the European Union List of Waste, the membrane concentrates are associated with leachates and are classified as either hazardous or non-hazardous waste and assigns them "mirror entries" codes: 19 07 02* or 19 07 03. Consequently, it is crucial to evaluate their hazardousness for proper management. If the concentrate is non-hazardous, it can be recirculated to the waste deposit under certain conditions. However, legislation only permits the storage of solid waste or sludge from the treatment plant with humidity < 60%. The paper refers to the characterization and evaluation of the hazardous properties of three liquid wastes, known as membrane concentrates, from treating municipal waste deposits leachates by reverse osmosis. In this study, the concentrations obtained for the main indicators in the three concentrates were found to be within the following ranges: ammonium (620 - 1120 mg/L); chlorides (12114 - 21349 mg/L); dissolved organic carbon (4270 - 10450 mg/L); total dissolved solids (60840 - 81000 mg/L). Reporting these concentrations to the limits imposed on the hazardous properties HP1-HP15, the wastes fall under code 19 07 03, related to nonhazardous waste. Even if the treatment facility would handle the treatment of a more polluted leachate resulting as concentrate is recirculated to the landfill, according to the legislation, due to the high concentrations of dissolved organic carbon, the three wastes cannot be eliminated on the waste deposits.
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This work was carried out through the Core Program within the National Research Development and Innovation Plan 2022-2027, with the support of the Ministry of Research, Innovation and Digitization, the projects PN 23 22 03 01 and PN 23 22 03 02.
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https://doi.org/10.5593/sgem2023V/4.2/s18.01
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Proceedings of 23rd International Multidisciplinary Scientific GeoConference SGEM 2023
23rd International Multidisciplinary Scientific GeoConference SGEM 2023, 28-30 November, 2023
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference-SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
3-12
28-30 November, 2023
website
9427
membrane concentrates, hazardousness evaluation, municipal waste landfill, recirculation, reverse osmosis