Invention Grant
- Patent Title: Mine drainage remediation using barium carbonate dispersed alkaline substrate
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Application No.: US15508757Application Date: 2015-09-04
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Publication No.: US10245626B2Publication Date: 2019-04-02
- Inventor: Esta Van Heerden , Julio Hernandez Castillo , Alba Gomez , Rohan Posthumus , Walter George Van Der Hoven
- Applicant: UNIVERSITY OF THE FREE STATE
- Applicant Address: ZA Bloemfontein
- Assignee: UNIVERSITY OF THE FREE STATE
- Current Assignee: UNIVERSITY OF THE FREE STATE
- Current Assignee Address: ZA Bloemfontein
- Agency: Saliwanchik, Lloyd & Eisenchenk
- Priority: ZA2014/06507 20140904
- International Application: PCT/IB2015/056760 WO 20150904
- International Announcement: WO2016/035045 WO 20160310
- Main IPC: B09C1/08
- IPC: B09C1/08 ; C02F1/66 ; C02F1/52 ; C02F3/10 ; C02F3/34 ; B09C1/00 ; B09C1/02 ; B09C1/10 ; C02F3/28 ; C02F3/30 ; C02F101/10 ; C02F101/16 ; C02F101/20 ; C02F103/10
Abstract:
The present invention relates to a treatment system having a barium carbonate (BaCO3) dispersed alkaline substrate (BDAS) for use in the remediation or at least partial remediation of mine drainage (MD) and/or environmental media contaminated with a source of MD. The invention utilizes chemical, biological and combined treatment systems remove high concentrations of sulfates, hardness, heavy metals and N-compounds, that may exist in the MD as well as high concentrations of alkalinity produced during the remediation process. The invention further extends to a process for treating MD and/or environmental media contaminated with MD and to an apparatus for use in this process.
Public/Granted literature
- US20170274431A1 Mine Drainage Remediation Using Barium Carbonate Dispersed Alkaline Substrate Public/Granted day:2017-09-28
Information query
