Evaluation of pilot-scale in-vessel composting for Hanwoo manure management
| Autor: | Duu-Jong Lee, Jung-Hoon Kwag, Balasubramani Ravindran, Ammaiyappan Selvam, Obuli. P. Karthikeyan, Jung Kon Kim, Kwang-Hwa Jeong, Jonathan W C Wong |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Manure management
Environmental Engineering Nitrogen 020209 energy In-vessel composting chemistry.chemical_element Bioengineering 02 engineering and technology 010501 environmental sciences engineering.material complex mixtures 01 natural sciences Soil Animal science Republic of Korea 0202 electrical engineering electronic engineering information engineering Waste Management and Disposal 0105 earth and related environmental sciences Renewable Energy Sustainability and the Environment Compost Composting fungi Temperature General Medicine Manure Agronomy chemistry Germination visual_art Hanwoo engineering visual_art.visual_art_medium Sawdust |
| Zdroj: | Bioresource technology. 245 |
| ISSN: | 1873-2976 |
| Popis: | 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 42days. 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect