Impact of carbonatation lime addition on composting of vegetable oil refining sludge

The aim of the present work is to evaluate how the vegetable oil refining sludge produced by the agro-food industry could be composted using carbonatation lime and green waste as bulking agents. To achieve this goal, three windrows were prepared with different mixtures: windrow 1 contained oil sludge and green waste (20:10 on a wet mass basis) while windrow 2 contained oil sludge, green waste and carbonatation lime (20:10:10, on a wet mass basis). The composition of windrow 3 was: oil sludge, green waste and carbonatation lime (20:10:20, on a wet mass basis). The results showed that the use of carbonatation lime for composting vegetable oil refining sludge was able to regulate the high acidity of the sludge and thus to obtain an optimal pH value for the launching and maintenance of the composting process. The addition of carbonatation lime also gave better reduction of microbial activity without any negative effect on composting. The compost prepared with oil refining sludge (49% fresh mass), carbonatation lime (27%) and green waste (24%) exhibited the best quality with C/N ratio and pH values within the norm NFU44-051. These promising results could be a sustainable solution for the valorization of both oil refining sludge and sugar carbonatation lime.

[1]  A. Nagpal,et al.  Analysis of Genotoxicity of Agricultural Soils and Metal (Fe, Mn, and Zn) Accumulation in Crops , 2018, International Journal of Environmental Research.

[2]  M. Soto,et al.  Composting of pig manure and forest green waste amended with industrial sludge. , 2017, The Science of the total environment.

[3]  M. Bustamante,et al.  Agri-food sludge management using different co-composting strategies: study of the added value of the composts obtained , 2016 .

[4]  O. Ahmed,et al.  Compost maturity and nitrogen availability by co-composting of paddy husk and chicken manure amended with clinoptilolite zeolite , 2015, Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA.

[5]  C. Mehta,et al.  Compost: its role, mechanism and impact on reducing soil-borne plant diseases. , 2014, Waste management.

[6]  J. Leahy,et al.  Effect of sawdust addition on composting of separated raw and anaerobically digested pig manure. , 2012, Journal of environmental management.

[7]  M. Ferchichi,et al.  Co-composting of spent coffee ground with olive mill wastewater sludge and poultry manure and effect of Trametes versicolor inoculation on the compost maturity. , 2012, Chemosphere.

[8]  J. Leahy,et al.  Characterization of compost produced from separated pig manure and a variety of bulking agents at low initial C/N ratios. , 2011, Bioresource technology.

[9]  Joan Colón,et al.  Possibilities of composting disposable diapers with municipal solid wastes , 2011, Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA.

[10]  A. V. Van Bruggen,et al.  Influence of aerobic and anaerobic conditions on survival of Escherichia coli O157:H7 and Salmonella enterica serovar Typhimurium in Luria-Bertani broth, farm-yard manure and slurry. , 2011, Journal of environmental management.

[11]  D. Raj,et al.  Evaluation of maturity and stability parameters of composts prepared from agro-industrial wastes. , 2011, Bioresource technology.

[12]  K. Marešová,et al.  Influence of compost covers on the efficiency of biowaste composting process. , 2010, Waste management.

[13]  J. A. Alburquerque,et al.  Composting of animal manures and chemical criteria for compost maturity assessment. A review. , 2009, Bioresource technology.

[14]  E. Pinelli,et al.  New direct contact approach to evaluate soil genotoxicity using the Vicia faba micronucleus test. , 2009, Chemosphere.

[15]  E. Ammar,et al.  Biological activity during co-composting of sludge issued from the OMW evaporation ponds with poultry manure-Physico-chemical characterization of the processed organic matter. , 2009, Journal of hazardous materials.

[16]  J. Cegarra,et al.  Aerobic biodegradation of sludge from the effluent of a vegetable oil processing plant mixed with household waste: physical-chemical, microbiological, and spectroscopic analysis. , 2008, Bioresource technology.

[17]  T. Hernández,et al.  Composting anaerobic and aerobic sewage sludges using two proportions of sawdust. , 2007, Waste management.

[18]  Katia Lasaridi,et al.  Quality assessment of composts in the Greek market: the need for standards and quality assurance. , 2006, Journal of environmental management.

[19]  M. Lemunier,et al.  Long-Term Survival of Pathogenic and Sanitation Indicator Bacteria in Experimental Biowaste Composts , 2005, Applied and Environmental Microbiology.

[20]  M. Hafidi,et al.  Chemical and spectroscopic analysis of organic matter transformation during composting of sewage sludge and green plant waste , 2005 .

[21]  G. Merlina,et al.  Sequential extraction of heavy metals during composting of sewage sludge. , 2005, Chemosphere.

[22]  Jiří Jaromír Klemeš,et al.  Overview of the environmental problems in beet sugar processing: possible solutions , 2005 .

[23]  M. Benito,et al.  Chemical and microbiological parameters for the characterisation of the stability and maturity of pruning waste compost , 2003, Biology and Fertility of Soils.

[24]  J. Kohda,et al.  Effects of C N ratio and pH of raw materials on oil degradation efficiency in a compost fermentation process. , 2003, Journal of bioscience and bioengineering.

[25]  L. Harvey,et al.  Effect of process temperature, pH and suspended solids content upon pasteurization of a model agricultural waste during thermophilic aerobic digestion , 1999, Journal of applied microbiology.

[26]  R. Haug.  The Practical Handbook of Compost Engineering , 1993 .