Towards a method for optimized extraction of soluble nutrients from fresh and composted chicken manures

Ksheem, Abdalhakim M. and Bennett, John McL. and Antille, Diogenes L. and Raine, Steven R. (2015) Towards a method for optimized extraction of soluble nutrients from fresh and composted chicken manures. Waste Management, 45. pp. 76-90. ISSN 0956-053X

Abstract

A preliminary method for extraction of soluble nutrients from organic materials is presented that investigates important characteristics of design for efficient extraction. The study was conducted in Polyvinyl Chloride (PVC) columns (length: 50 and 100 mm, diameter: 87.5 mm) filled with fresh and composted chicken manures, packed to densities in the range of 0.2–0.6 g cm−3. The columns were leached with distilled water. A total of 5 cm3 of water per cm3 of material was applied. Leachate collection was sequentially partitioned to enable determination of soluble nutrients throughout time, including: total dissolved nitrogen (TDN), water soluble phosphorus (P) and potassium (K). Waste material state, density of packing and lengths of column all significantly (P < 0.05) affected the concentration of ions in the leachate. In general, longer contact time between the percolating water and the material resulted in higher (P < 0.05) concentration of ions in the leachate. Cumulative TDN and water soluble-P were greater (P < 0.05) in fresh manure leachates, compared with compost leachates. Although, compost leachates provided relatively greater (P < 0.05) concentration of K. Salinity ionic concentration of leachates, determined as Na and Cl, was consistently greater from fresh manure as compared to that from mature compost. Fresh manure and mature compost were determined to provide different responses to nutrient leaching because of differences in physico-chemical characteristics. Saturated hydraulic conductivity in fresh manure columns reduced rapidly with application of water to the columns. The mechanisms involved in this process are discussed with the implication for nutrient extraction and use of leachate from chicken manure waste sources.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions. This article belongs to a Special Issue 'Urban Mining' published in 2015 in Waste Management.
Faculty / Department / School: Current - USQ Other
Date Deposited: 02 Jun 2016 06:07
Last Modified: 13 Mar 2017 04:40
Uncontrolled Keywords: fresh chicken manure; leaching efficiency; liquid fertiliser; mature compost; soluble nutrients extraction
Fields of Research : 05 Environmental Sciences > 0503 Soil Sciences > 050399 Soil Sciences not elsewhere classified
07 Agricultural and Veterinary Sciences > 0799 Other Agricultural and Veterinary Sciences > 079902 Fertilisers and Agrochemicals (incl. Application)
Socio-Economic Objective: D Environment > 96 Environment > 9614 Soils > 961402 Farmland, Arable Cropland and Permanent Cropland Soils
Identification Number or DOI: 10.1016/j.wasman.2015.02.011
URI: http://eprints.usq.edu.au/id/eprint/29223

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