| Effect of sawdust addition on composting of separated raw and anaerobically digested pig manure. | |
| | |
MedLine Citation:
|
PMID: 22824375 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
Manures need the addition of carbon-rich bulking agents to conserve N during composting, which increases the cost of the composting process. The recommended proportion of manure/sawdust, based on a carbon (C):nitrogen (N) ratio, is approximately 3:2. Two composting experiments were conducted to determine the impact of varying the proportion of sawdust to either separated raw, or separated anaerobically digested pig manures. To determine stability and maturity of the final compost, oxygen uptake rate (OUR) and germination index (GI) tests were conducted. For both experiments, three treatments were employed: manure-only (Treatment A), manure/sawdust mixed 4:1, fresh weight (Treatment B), and manure/sawdust mixed 3:2, fresh weight (Treatment C). The mixtures were composted in tumblers for 56 days with regular turning. The composting material was tested over the study duration for temperature, pH, water content, organic matter, C:N ratio and bulk density. For both Treatments B and C, the GI indicated low levels of phytotoxicity, and OUR values were lower than the recommended Irish threshold of 13 mmol O(2) kg OM(-1) h(-1), indicating that a high quality compost was produced. The proportion of sawdust to separated manure used can be reduced to make a cost saving, while still producing a stable end-product: 60% less sawdust is required to compost at a manure-to-sawdust ratio of 4:1 compared to the previously recommended ratio of 3:2. |
| | |
Authors:
|
Shane M Troy; Tereza Nolan; Witold Kwapinski; James J Leahy; Mark G Healy; Peadar G Lawlor |
Related Documents
:
|
22892215 - Leonurenones a-c: labdane diterpenes from leonotis leonurus. 22870305 - Variation in mycorrhizal associations with tulasnelloid fungi among populations of five... 22706045 - Archaeal abundance across a ph gradient in an arable soil and its relationship to bacte... 22819645 - Atomic force microscopy of the fungi-mineral interface: applications in mineral dissolu... 19826225 - The na(+)/h(+) exchanger sos1 controls extrusion and distribution of na(+) in tomato pl... 22892215 - Leonurenones a-c: labdane diterpenes from leonotis leonurus. |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2012-7-21 |
Journal Detail:
|
Title: Journal of environmental management Volume: 111C ISSN: 1095-8630 ISO Abbreviation: - Publication Date: 2012 Jul |
Date Detail:
|
Created Date: 2012-7-24 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0401664 Medline TA: J Environ Manage Country: - |
Other Details:
|
Languages: ENG Pagination: 70-77 Citation Subset: - |
Copyright Information:
|
Copyright © 2012 Elsevier Ltd. All rights reserved. |
Affiliation:
|
Teagasc, Pig Development Department, Animal & Grassland Research & Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland; Civil Engineering, National University of Ireland, Galway, Co. Galway, Ireland. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Hormonal therapies for new onset and relapsed depression during perimenopause.
Next Document: Exploring how IBCLCs manage ethical dilemmas: a qualitative study.