Evaluation of pilot-scale in-vessel composting for Hanwoo manure management. (December 2017)

• Record Type: Journal Article
• Authors: Jeong, Kwang-Hwa; Kim, Jung Kon; Ravindran, Balsubramani; Lee, Dong Jun; Wong, Jonathan Woon-Chung; Selvam, Ammaiyappan; Karthikeyan, Obuli P.; Kwag, Jung-Hoon
• Is Part Of: Bioresource technology. Volume 245:Part A(2017)
• Page Start: 201
• Page End: 206
• Publication Date: 2017-12
• Subjects: In-vessel composting -- Hanwoo manure -- Physico-chemical changes -- Phytotoxicity; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2017.08.127
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: In-vessel composting process was effective in Hanwoo manure management. Both South Korea regions Hanwoo manure yielded matured and phytotoxic-free composts. Key process parameters were within the relevant compost standards. Abstract: The study investigated the effect of in-vessel composting process on Hanwoo manure in two different South Korea regions (Pyeongchang and Goechang) with sawdust using vertical cylindrical in-vessel bioreactor for 42 days. The stability and quality of Hanwoo manure in both regions were improved and confirmed through the positive changes in physico-chemical and phytotoxic properties using different commercial seed crops. The pH and electrical conductivity (EC, ds/m) of composted manure in both regions were slightly increased. At the same time, carbon:nitrogen (C:N) ratio and ammonium nitrogen:nitrate nitrogen (NH4 + -N:NO3 − -N) ratio decreased to 13.4–16.1 and 0.36–0.37, respectively. The germination index (GI, %) index was recorded in the range of 67.6–120.9%, which was greater than 50%, indicating phytotoxin-free compost. Although, composted manure values in Goechang region were better in significant parameters, overall results confirmed that the composting process could lead to complete maturation of the composted product in both regions.