Abstract
: The possibility of joint utilization of municipal solid waste (MSW) slag and drill cuttings by their recycling into complex mineral fertilizers through the use of lean-grade phosphorite as a source of phosphorus has been considered. Also, the recycling of three-component raw materials has been carried out with 50-65% sludge sulfuric acid from the propylene hydration process at 80°C. The consumption rate of sulfuric acid required to obtain mineral fertilizers with a sufficient content of Р2О5assim. has been determined with due regard for the presence of the increased content of sesquioxides in the drill cuttings. Comparative results of the recycling MSW with phosphorite and three-component raw materials confirming the absence of harmful effect of drill cuttings on the recycling process and the role of the nature of the used sulfuric acid on the parameters of the recycling process have been shown.
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