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Caracterização de compostos e de materiais orgânicos para a formulação de subst...
Cunha-Queda, C.; Morais, M.C.; Ribeiro, H.M.; Almeida, M.H.Present work aimed the physic-chemical and biological characterization of products obtained from composting of several organic wastes: sewage sludge produced at wastewater treatment plants (WWTP), organic fraction of municipal solid waste (MSW) and, green waste from parks and gardens. A commercial substrate used at nursery plants was also characterized. The compost that presented minor potentiality to be used o...
Remediation of a mine soil with insoluble polyacrylate polymers enhances soil q...
Guiwei, Q.; Varennes, A.; Cunha-Queda, C.We investigated the effects of different application rates of insoluble hydrophilic polyacrylate polymers on plant growth and soil quality from a Pb-contaminated mine soil. The polymer increased the waterholding capacity of the soil from about 250 g ⁄ kg in unamended soil to almost 1000 g ⁄ kg in soil with 0.6% polymer. However, the capacity of the polymer to retain water decreased progressively, presumably as ...
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