A client needed a cost effective solution for the re-use or disposal of large stockpiles of coal waste. These stockpiles posed an environmental, space, and economic liability. The challenge was developing an agglomeration process to convert the coal waste into a value-added product solving the potential liabilities and creating an additional revenue stream for the client. - The client engaged hrl: to provide comprehensive technical expertise and develop a briquetting product right through from concept to pilot scale demonstration, and finally, a commercial plant producing and selling briquettes.

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