Engineering & Mining Journal

NOV 2018

Engineering and Mining Journal - Whether the market is copper, gold, nickel, iron ore, lead/zinc, PGM, diamonds or other commodities, E&MJ takes the lead in projecting trends, following development and reporting on the most efficient operating pr

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68 E&MJ • NOVEMBER 2018 SUPPLIERS REPORT Mineral processing specialist Multotec Group reported it began commissioning a DeSALx plant to treat waste water from a flue gas desulphurization scrubber at a minerals processing plant in Oman. At the plant, DeSALx technology was paired with traditional technologies to achieve water recoveries exceeding 90%, said Carien Spagnuolo, senior process engineer, Multotec Process Equipment. "The pyro-metallurgical antimony plant in which we are installing at this facili- ty, is located in a very water-constrained area, requiring a high level of water recov- ery and permitting no liquid effluent from the site," Spagnuolo said. "The antimony roaster produces waste water with high levels of heavy metals, including antimo- ny and arsenic, which need to be precipi- tated in a pre-treatment phase." Based on the Continuous Ionic Fil- tration (CIF) process from Multotec's Australian technology partner CleanTeq Water, DeSALx uses two stages of CIF to desalinate brackish water, and enables this effluent treatment process to operate at a much higher water recovery rate than conventionally possible. The CIF system consists of a series of columns, each designed for a specific function: ion exchange and filtration; res- in washing; and resin regeneration. In the DeSALx desalination process, a cationic resin is used in the first stage to remove cations from water. In the second stage, an anionic resin is used to remove anions. DMT Models Water Treatment in Ukraine DMT reported it prepared a feasibility study for the optimization of mine water management in Kriwoi Rog, Ukraine, as part of the Program to Support the Green Modernization of the Ukrainian Economy. DMT engineers explored technical opti- mization measures to reduce water pol- lution in the area, where multiple mines are sited. DMT deployed its Boxmodell simulation software to calculate water flow and particle concentration levels. The resulting feasibility study-stage water treatment concept could reduce chloride contamination from 2,500 miligrams per liter (mg/l) to 350 mg/l, DMT reported. Separately, DMT announced it was contracted by Rock Tech Lithium Inc. to continue to support the development of the Georgia Lake lithium project. DMT will continue to assess the lithium content of the deposit to provide data for a prelim- inary economic assessment. The deposit was discovered in the Thunder Bay Min- ing District in northwestern Ontario in the mid-1950s. Rock Tech Lithium stepped up exploration of the deposit in 2016. Pilbara Mine Gets H-E Parts Chute Liners H-E Parts International won a three-year contract with Roy Hill, which includes a two-year extension based on perfor- mance, to supply rotable transfer chutes, liners and refurbishment services to Roy Hill Holdings Pilbara mine site and port facility in Western Australia. The contract will be managed by H-E Parts Crushing Solutions division and in- corporates rotable services and the supply of the company's ProTech wear products offering. This includes a full range of overlay wear plate, Q&T wear plate, Ni- Hard and ceramic liners, all of which can be customized to suit any application, H-E Parts reported. Multotec Group Commissions Waste Water Treatment Plant The water treatment plant, with the above design, will produce 10 cubic meters per hour of potable quality water for reuse within the antimony recovery plant. (Photo: Multotec Group) H-E Parts chute liners will be deployed to the Roy Hill mine. (Photo: H-E Parts International)

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