Properties of slate mining wastes incubated with grape marc compost under laboratory conditions

Waste Management
Remigio ParadeloMaría Teresa Barral

Abstract

The effect of the addition of spent grape marc compost (GMC) and vermicompost (GMV) as amendments to slate mining wastes was evaluated in a laboratory incubation experiment. Mixtures of slate processing fines (SPF), with three doses of each amendment (4%, 8% and 16% compost, dry weight), plus a control were incubated at 25 degrees C in the laboratory for 90 days. The changes in the chemical and biological properties of the mixtures (pH, total C, total N, inorganic N, available nutrients, microbial biomass carbon and dehydrogenase activity) were investigated during the incubation period, and once it was finished, the phytotoxicity of the mixtures was determined by the germination of Lolium multiflorum Lam. seeds. The addition of the amendments significantly increased the nutrient concentrations of the SPF and enhanced biological activity by increasing microbial biomass and enzymatic activity. Results improved with higher doses; within the composts, GMV showed a better performance than GMC. These results prove the suitability of grape marc-derived amendments for the biochemical amelioration of mining wastes, and highlight the benefits of organic amendment in restoration projects.

References

Jul 13, 2004·Bioresource Technology·E BertranI Trillas
Jul 29, 2005·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Rogelio NogalesEmilio Benítez
Nov 1, 2005·Chemosphere·M T Barral SilvaN Vázquez Freire
Apr 19, 2007·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·María Teresa Barral SilvaFrancisco Díaz-Fierros Viqueira

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Citations

Jan 1, 2013·Journal of Environmental Management·Remigio ParadeloMaría Teresa Barral
Sep 15, 2010·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Remigio ParadeloMaría Teresa Barral
Jul 4, 2012·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Remigio ParadeloMaría Teresa Barral
Apr 4, 2019·Critical Reviews in Biotechnology·María Gómez-BrandónJorge Domínguez
May 28, 2019·Environmental Science and Pollution Research International·Remigio ParadeloMaría Teresa Barral
May 9, 2009·Journal of Agricultural and Food Chemistry·Remigio ParadeloMaría Teresa Barral
Feb 6, 2010·Journal of Agricultural and Food Chemistry·Remigio ParadeloMaría T Barral

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