Invention Grant
US08840793B2 Selective sulphate removal by exclusive anion exchange from hard water waste streams
有权
通过从硬水废物流中排除阴离子交换来选择性硫酸盐去除
- Patent Title: Selective sulphate removal by exclusive anion exchange from hard water waste streams
- Patent Title (中): 通过从硬水废物流中排除阴离子交换来选择性硫酸盐去除
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Application No.: US14046695Application Date: 2013-10-04
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Publication No.: US08840793B2Publication Date: 2014-09-23
- Inventor: Michael Bratty , David Kratochvil
- Applicant: Bioteq Environmental Technologies Inc.
- Applicant Address: CA Vancouver
- Assignee: Bioteq Environmental Technologies Inc.
- Current Assignee: Bioteq Environmental Technologies Inc.
- Current Assignee Address: CA Vancouver
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Main IPC: C02F1/42
- IPC: C02F1/42 ; B01J49/00 ; B01J41/04 ; C02F1/44 ; C02F101/10 ; C02F103/10
Abstract:
The invention provides waste water treatment processes utilizing an ion exchange resin to remove sulphate anions, while adjusting the pH of the ion exchange loading solution with carbon dioxide gas. The effect of the resin loading reactions is that dissolved sulphate is replaced with sequestered carbon dioxide gas, in the form of dissolved bicarbonate, in the treated water and the cations are not removed from the solution.
Public/Granted literature
- US20140034575A1 SELECTIVE SULPHATE REMOVAL BY EXCLUSIVE ANION EXCHANGE FROM HARD WATER WASTE STREAMS Public/Granted day:2014-02-06
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