Changes in the Chemical Properties of Different Co-digestion Digestates caused by Aeration

Byeon, J. E., H. J. Lee, J. W. Ryoo and S. G. Hwang

doi:10.22698/jales.20200005

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2020 Vol.32, Issue 1 Preview Page Next Page

Research Article

Changes in the Chemical Properties of Different Co-digestion Digestates caused by Aeration 상이한 혼합 혐기소화액의 폭기처리에 따른 화학적 성분 변화

March 2020. pp. 44-53

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Abstract

To evaluate the effects of aeration on co-digestates, we investigated the chemical contents of aerobic liquefying processes. The six co-digestates were continuously aerated with 0.1 m³air/m³·min for 54 days. The three measured chemical contents (T-N, BOD₅,and COD_Mn)were all decreased after aeration. Meanwhile, NO3-N, DO, and ORP were all increased after aeration. A standard procedure for fertilizers in anaerobic solutions has not yet been set in agriculture. The livestock liquid manure should have a proportion of 0.3% for T-N, T-P, and T-K. In this study, the aerobic liquid fertilizer was above the standard level(0.3%), suggesting the utilization of co-digestates.

Keywords

Aeration

Chemical content

Co-digestate

Fruits pomace

Livestock manure

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Information

Publisher :Agriculture and Life Sciences Research Institute, Kangwon National University
Publisher(Ko) :강원대학교 농업생명과학대학 농업생명과학연구원
Journal Title :Journal of Agricultural, Life and Environmental Sciences
Journal Title(Ko) :농업생명환경연구
Volume : 32
No :1
Pages :44-53
Received Date :2020. 01. 31
Revised Date :2020. 03. 16
Accepted Date : 2020. 03. 16
DOI :https://doi.org/10.22698/jales.20200005

Journal of Agricultural, Life and Environmental Sciences ISSN:2233-8322(Print) 2508-870X(Online) 농업생명환경연구

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