Sludge by-products from the metalworking industry have a high potential for recycling. Prolonged grinding processes can generate large amounts of highly valuable, alloy-rich sludge; consisting of metal powder and cooling lubricants. Inside our VacuDry system, the thermal separation of the liquids (hydrocarbons, eventually water) and solids (metal powder) takes place in an oxygen free atmosphere. This absence of oxygen ultimately eliminates material degradation by oxidation, and self-ignition or explosion risks. Operation under a low vacuum ensures the possibility to recover the cooling lubricants for later reuse. After the thermal treatment, for appropriate handling in the melting process, the metal powder is pressed into briquettes. With the econ VacuDry technology, 100% recycling of all ingredients is possible.
By econ industries services GmbH based in Starnberg, GERMANY.
Equipment and systems for Kraft and Sulfite mills. Control chlorine and chlorine dioxide emissions from bleaching operations. Brown stock washer emissions. Control particulate emissions from lime kilns, lime slakers, black liquor recovery boilers, furnaces and gasification units. Particulate from bark and sludge boilers and sulfur dioxide and trioxide removal from those sources. Control of hydrogen sulfide, TRS and methanol emissions from LVHC and HVLC gas streams. Complete fugitive lime dust collection systems to handle emissions from conveyors, elevators and feeders. Smelt dissolving tank particulate and TRS gases. Direct contact waste heat recovery. Black liquor evaporation. Treatment and subcooling of boiler and kiln gases to remove particulate, sulfur dioxide and TRS for precipitated calcium carbonate production (PCC). Dust from tissue and paper rollers and dryers. NASH and sodium hypochlorite scrubbing. Waste heat recovery with direct contact heat exchangers.
By Bionomic Industries Inc. based in Mahwah, NEW JERSEY (USA).
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