Version 1
: Received: 26 July 2023 / Approved: 27 July 2023 / Online: 28 July 2023 (12:34:58 CEST)
How to cite:
Kim, S.; Park, S.; Lee, S.; Jung, J.; Ahn, S.; Ham, K.; Lee, M. Evaluation of Physicochemical Separation Characteristics of Pig Manure According to the Type of Solid-Liquid Separator Processes. Preprints2023, 2023071949. https://doi.org/10.20944/preprints202307.1949.v1
Kim, S.; Park, S.; Lee, S.; Jung, J.; Ahn, S.; Ham, K.; Lee, M. Evaluation of Physicochemical Separation Characteristics of Pig Manure According to the Type of Solid-Liquid Separator Processes. Preprints 2023, 2023071949. https://doi.org/10.20944/preprints202307.1949.v1
Kim, S.; Park, S.; Lee, S.; Jung, J.; Ahn, S.; Ham, K.; Lee, M. Evaluation of Physicochemical Separation Characteristics of Pig Manure According to the Type of Solid-Liquid Separator Processes. Preprints2023, 2023071949. https://doi.org/10.20944/preprints202307.1949.v1
APA Style
Kim, S., Park, S., Lee, S., Jung, J., Ahn, S., Ham, K., & Lee, M. (2023). Evaluation of Physicochemical Separation Characteristics of Pig Manure According to the Type of Solid-Liquid Separator Processes. Preprints. https://doi.org/10.20944/preprints202307.1949.v1
Chicago/Turabian Style
Kim, S., Kwon-Woong Ham and Myung-Gyu Lee. 2023 "Evaluation of Physicochemical Separation Characteristics of Pig Manure According to the Type of Solid-Liquid Separator Processes" Preprints. https://doi.org/10.20944/preprints202307.1949.v1
Abstract
This study evaluated various solid-liquid separation (SLS) processes used in pig farms for wastewater and livestock manure. SLS is crucial for recycling and purifying pig manure. Seven SLS processes were tested on 11 farms: centrifuge, centrifuge with coagulation agent, belt press with coagulation agent, drum screen, inclined screen, vibration screen, and screw press. Samples collected included raw manure, separated liquid, and solid manure after SLS processing, analyzed for pH, EC, moisture, CODMn, BOD5, TN, TP, K, TS, SS, NaCl, and heavy metals. Belt press with coagulation agent showed highest TS and SS reduction (78.8% and 96.9%). For TN and TP removal, belt press and centrifuge with coagulation agents achieved 41.0% and 94.2%, respectively. Belt press with coagulation agent removed 59.4% BOD5 and 66.0% CODMn. Centrifuge with coagulation agent removed 100% Zn and 98.6% Cu. Drum screen, inclined screen, vibration screen, screw press, and centrifuge without coagulation showed lower removal efficiency for nutrients, solids, Zn, and Cu compared to centrifugal and belt press with coagulation. Centrifugal and belt press with coagulation showed higher efficiency in removing nutrients, solids, and metals. Further studies are needed to understand its impact on linked biological or chemical processes.
Keywords
livestock; pig manure; solid–liquid separations
Subject
Environmental and Earth Sciences, Waste Management and Disposal
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
