LYC 0.63% $6.41 lynas rare earths limited

dr looi on fb malaysia, page-415

  1. RVR
    6,296 Posts.
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    So here, of course, is one very obvious source of the heavy metals in the ground water around Kuantan - NOT the LAMP, whose raw material and residues do NOT contain any significant heavy metals.
    I understand this old mine is about 43 km from the Lynas industrial estate at Gebeng. So why is the Minister falsely accusing our company of polluting the environment?

    Risk assessment at abandoned tin mine in Sungai Lembing, Pahang, Malaysia Electronic Journal of Geotechnical Engineering 14:1-9 January 2009.
    By:
    Fares Yahya Alshaebi 5.32Petroleum & Natural Gas Higher Institute of Technology and Training Wan Zuhairi Yaacob 25.5Universiti Kebangsaan Malaysia Abdul Rahim Samsudin 26.32Universiti Kebangsaan Malaysia E. Alsabahi

    Abstract
    The Sungai Lembing abandoned tin mining and processing activities 77 years lease to mine the area have resulted in the production of hazardous wastes, which contain high residual concentrations of heavy metals.

    Heavy metals (As, Pb, Zn, Cu, Cr and Ni) contained in the tailings are mobilised, migrate to the surroundings and cause severe and widespread contamination of soils, surface and ground waters and to river. For the purpose of this study, eight holes were drilled using hand auger, and sampling of contaminated soil was conducted at different depths and collected samples from surface for the tailings. The concentrations of heavy metals in this area exceed the limit allowed by Dutch list and Kelly Indices.

    Results showed that the concentrations of heavy metals in contaminated soils range between 101.71 mg/kg for Cr and 250311.4 mg/kg for Pb. Meanwhile, the maximum concentration of heavy metals in tailing deposits is 151839.32 mg/kg for Pb near the main potential sources of pollution (i.e. near the abandoned processing structure), and the minimum concentration is 96.04 mg/kg for Cr.

    The results suggest that there is a vital increase of heavy metal risk in this area. Polluted heavy metals dispersion (for examples from historical and active tailings impoundments and waste rock dumps), are mainly associated, at this site, with water transportation of mine waste through the flowing streams. Control measures of pollution routes and remediation measures at the site are urgently required.“

    https://www.researchgate.net/publication/279593033_Risk_assessment_at_abandoned_tin_mine_in_Sungai_Lembing_Pahang_Malaysia


    Last edited by RVR: 22/04/19
 
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