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Enhancing the co-composting of olive mill wastes and sewage sludge by the addition of an industrial waste.
Bioresour Technol 2008; 99(14):6346-53BT

Abstract

In this work, the effect of incorporating an acidic ferrous sulphate waste (SF) over co-composting process of sewage sludge and olive mill solid wastes in a 1:2 v/v wet basis was investigated. The SF used was an industrial by-product of titanium oxide synthesis and its addition resulted in a chemical stabilisation of the wastes at low pH. The optimum dose of SF to enhance the composting of the studied biowastes was a 20% v/v (wet basis) and the best moment for the addition turned out to be whenever the composting piles had achieved the thermophilic range. The addition of SF over the composting process made possible a faster stabilisation, increasing the composting rate from 0.033 to 0.13 d(-1), and leading to a Fe and S rich compost. All composts obtained fulfilled the limits determined by current European and Spanish regulations and presented better characteristics for its use as soil amendment and organic fertilizer than the traditional composts without SF. The optimum dose of compost containing SF was determined through agronomic tests being its value about 18 Ton ha(-1).

Authors+Show Affiliations

Chemical Engineering Department, ITQUIMA, University of Castilla-La Mancha, Avda. Camilo José Cela S/N 13071, Ciudad Real, Spain.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

18194860

Citation

Sánchez-Arias, Virginia, et al. "Enhancing the Co-composting of Olive Mill Wastes and Sewage Sludge By the Addition of an Industrial Waste." Bioresource Technology, vol. 99, no. 14, 2008, pp. 6346-53.
Sánchez-Arias V, Fernández FJ, Villaseñor J, et al. Enhancing the co-composting of olive mill wastes and sewage sludge by the addition of an industrial waste. Bioresour Technol. 2008;99(14):6346-53.
Sánchez-Arias, V., Fernández, F. J., Villaseñor, J., & Rodríguez, L. (2008). Enhancing the co-composting of olive mill wastes and sewage sludge by the addition of an industrial waste. Bioresource Technology, 99(14), pp. 6346-53. doi:10.1016/j.biortech.2007.12.013.
Sánchez-Arias V, et al. Enhancing the Co-composting of Olive Mill Wastes and Sewage Sludge By the Addition of an Industrial Waste. Bioresour Technol. 2008;99(14):6346-53. PubMed PMID: 18194860.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Enhancing the co-composting of olive mill wastes and sewage sludge by the addition of an industrial waste. AU - Sánchez-Arias,Virginia, AU - Fernández,Francisco J, AU - Villaseñor,José, AU - Rodríguez,Lourdes, Y1 - 2008/01/14/ PY - 2007/03/13/received PY - 2007/11/23/revised PY - 2007/12/01/accepted PY - 2008/1/16/pubmed PY - 2008/8/21/medline PY - 2008/1/16/entrez SP - 6346 EP - 53 JF - Bioresource technology JO - Bioresour. Technol. VL - 99 IS - 14 N2 - In this work, the effect of incorporating an acidic ferrous sulphate waste (SF) over co-composting process of sewage sludge and olive mill solid wastes in a 1:2 v/v wet basis was investigated. The SF used was an industrial by-product of titanium oxide synthesis and its addition resulted in a chemical stabilisation of the wastes at low pH. The optimum dose of SF to enhance the composting of the studied biowastes was a 20% v/v (wet basis) and the best moment for the addition turned out to be whenever the composting piles had achieved the thermophilic range. The addition of SF over the composting process made possible a faster stabilisation, increasing the composting rate from 0.033 to 0.13 d(-1), and leading to a Fe and S rich compost. All composts obtained fulfilled the limits determined by current European and Spanish regulations and presented better characteristics for its use as soil amendment and organic fertilizer than the traditional composts without SF. The optimum dose of compost containing SF was determined through agronomic tests being its value about 18 Ton ha(-1). SN - 0960-8524 UR - https://www.unboundmedicine.com/medline/citation/18194860/Enhancing_the_co_composting_of_olive_mill_wastes_and_sewage_sludge_by_the_addition_of_an_industrial_waste_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(07)01024-3 DB - PRIME DP - Unbound Medicine ER -