Bioconversion of industrial wastes: Paint sludge from automotive manufacturing
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Date
2018-07-24
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Springer
Abstract
The compostability of water-based paint sludge originating from the automotive industry was investigated. Six reactors were operated. Wastewater treatment sludge from the same industry was used as additional substrate, and corncob was used as a bulking agent. The level of paint sludge within the compost mixtures varied between 55 and 85%. All reactors yielded a temperature increase up to thermophilic phase levels (>40 degrees C) for a minimum of 5days, and organic matter and C/N losses were observed. BTEX concentrations decreased during composting. Nickel and tin levels in the final product exceeded the legal compost limits. The calorific value of the compost mixtures increased from 9532 to 18774kJ/kg at the end of the composting process. It was seen that the process applied in this study can be utilized as a biodrying step before the usage of paint sludge at cement kilns as additional fuel.
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Keywords
Environmental sciences & ecology, Biodrying, Composting, Treatment plant sludge, Waste management, Moisture-content, Melamine resin, Manure, Air pollution control, Automotive industry, Brickmaking, Cements, Industrial wastes, Kilns, Mixtures, Paint, Automotive manufacturing, Wastewater treatment, Bio-drying, Cement kiln, Temperature increase, Thermophilic phase, Wastewater treatment sludge, Water-based paints, Industrial wastes, Waste treatment
Citation
Salihoğlu, N. K. vd. (2018). ''Bioconversion of industrial wastes: paint sludge from automotive manufacturing''. Journal of Material Cycles and Waste Management, 20(4), 2100-2109.