Performance Comparison between Anaerobic Hybrid Reactor and Anaerobic Continuous Stirred-Tank Reactor for High-Strength Fresh Leachate Treatment
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Author list: Sutthiprapa, Sakulrat; Towprayoon, Sirintornthep; Chiemchaisri, Chart; Chaiprasert, Pawinee; Wangyao, Komsilp
Publication year: 2024
Volume number: 33
Issue number: 3
Start page: 2307
End page: 2315
Number of pages: 9
ISSN: 1230-1485
eISSN: 2083-5906
Languages: English-Great Britain (EN-GB)
Abstract
This study aimed to examine the performance of an anaerobic hybrid reactor (AHR) and an anaerobic continuous stirred tank reactor (CSTR) for treating high-strength fresh leachate. As the organic loading rate (OLR) was increased in both systems, the pH decreased, with the lowest pH corresponding to an OLR of 25-30 kgCOD/m3·d. The AHR system demonstrated instability in total volatile fatty acids when the OLR increased to 20 kgCOD/m3·d. The highest methane (CH4) content was achieved when the OLR was 15 kgCOD/m3·d. Moreover, the AHR showed excellent sediment retention. When the OLR increased, volatile suspended solids (VSS) in the system increased. The CH4 content tended to increase as the OLR increased up to 20 kgCOD/m3·d. The highest CH4 content in the AHR was 68%, which was higher than that of the CSTR. The CSTR could not produce biogas when the OLR was 20 kgCOD/m3·d. The optimal OLR for the operation of AHR and CSTR treating fresh leachate was found to be 15 and 10 kgCOD/m3·d respectively. © 2024, HARD Publishing Company. All rights reserved.
Keywords
waste transfer station
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