公开(公告)号：US09963360B2

公开(公告)日：2018-05-08

申请号：US15026871

申请日：2014-10-03

Applicant: BIOTEQ ENVIRONMENTAL TECHNOLOGIES INC.

Inventor： David Kratochvil ,  Farzad Mohammadi ,  Patrick Littlejohn ,  David Sanguinetti

IPC: C02F1/42 ,  C02F1/44 ,  C02F1/52 ,  C02F1/467 ,  B01J41/05 ,  B01J49/57 ,  C02F1/04 ,  C02F1/463 ,  C02F1/66 ,  C02F101/10 ,  C02F103/18

CPC classification number: C02F1/42 ,  B01J41/05 ,  B01J49/57 ,  C02F1/04 ,  C02F1/441 ,  C02F1/442 ,  C02F1/463 ,  C02F1/4678 ,  C02F1/5245 ,  C02F1/66 ,  C02F2001/422 ,  C02F2001/5218 ,  C02F2101/106 ,  C02F2103/18 ,  C02F2303/16

Abstract: Processes for treating aqueous solutions to remove dissolved selenium species, for example in the presence of an excess of sulphate anions, which include the use of strongly basic anion exchange resins, or co-precipitation and adsorption of the selenate (and selenite) with mixed ferrous and ferric iron, or combinations thereof. Co-precipitation and adsorption of selenate may take place in an electrolytic cell in the presence of ferrous and/or ferric iron.

公开(公告)号：US08840793B2

公开(公告)日：2014-09-23

申请号：US14046695

申请日：2013-10-04

Applicant: Bioteq Environmental Technologies Inc.

Inventor： Michael Bratty ,  David Kratochvil

IPC: C02F1/42 ,  B01J49/00 ,  B01J41/04 ,  C02F1/44 ,  C02F101/10 ,  C02F103/10

CPC classification number: C02F1/42 ,  B01J41/05 ,  B01J49/07 ,  C02F1/441 ,  C02F2101/101 ,  C02F2103/10 ,  C02F2209/06 ,  C02F2303/16

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.

Abstract translation: 本发明提供利用离子交换树脂去除硫酸根阴离子的废水处理方法，同时用二氧化碳气体调节离子交换负载溶液的pH。 树脂负载反应的影响是在处理过的水中溶解的硫酸盐被替换为以溶解的碳酸氢盐的形式的螯合的二氧化碳气体，并且不从溶液中除去阳离子。

公开(公告)号：US20140034575A1

公开(公告)日：2014-02-06

申请号：US14046695

申请日：2013-10-04

Applicant: BIOTEQ ENVIRONMENTAL TECHNOLOGIES INC.

Inventor： Michael Bratty ,  David Kratochvil

IPC: C02F1/42

CPC classification number: C02F1/42 ,  B01J41/05 ,  B01J49/07 ,  C02F1/441 ,  C02F2101/101 ,  C02F2103/10 ,  C02F2209/06 ,  C02F2303/16

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.

Abstract translation: 本发明提供利用离子交换树脂去除硫酸根阴离子的废水处理方法，同时用二氧化碳气体调节离子交换负载溶液的pH。 树脂负载反应的影响是在处理过的水中溶解的硫酸盐被替换为以溶解的碳酸氢盐的形式的螯合的二氧化碳气体，并且不从溶液中除去阳离子。