公开(公告)号：US20140138311A1

公开(公告)日：2014-05-22

申请号：US13928051

申请日：2013-06-26

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yong Su CHOI ,  Jae Shik CHUNG ,  Hyokwan BAE ,  Hwa Yeon JEON ,  Seockheon LEE

IPC: C02F3/34

CPC classification number: C02F3/346 ,  C02F3/2806 ,  C02F2305/06

Abstract: Disclosed herein are an apparatus and method for reducing nitrate using iron-oxidizing microorganisms, which can easily reduce nitrate using iron-oxidizing microorganisms. The apparatus includes: a nitrate-reducing reactor which is operated under anaerobic conditions and provides a space for reduction of nitrate; and an iron-oxidizing microorganism provided in the nitrate-reducing reactor, wherein the iron-oxidizing microorganism releases divalent iron (Fe2+), the released Fe2+ is converted to Fe3+ by microbial oxidation under anaerobic conditions while releasing an electron, and the released electron is used in the reduction of nitrate into nitrogen gas by the iron-oxidizing microorganism.

Abstract translation: 本文公开了使用铁氧化微生物还原硝酸盐的装置和方法，其可以使用铁氧化微生物容易地减少硝酸盐。 该装置包括：硝酸盐还原反应器，其在厌氧条件下操作并提供用于还原硝酸盐的空间; 和在硝酸盐还原反应器中提供的铁氧化微生物，其中铁氧化微生物释放二价铁（Fe2 +），释放的电子在释放电子的同时通过微生物氧化将释放的Fe 2+转化为Fe3 +，释放的电子为 用于通过铁氧化微生物将硝酸盐还原成氮气。

公开(公告)号：US20180086653A1

公开(公告)日：2018-03-29

申请号：US15377319

申请日：2016-12-13

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Chan Hyuk PARK ,  Yeong Mi JEONG ,  Sang Hyup LEE ,  Jae Woo CHOI ,  Yong Su CHOI

IPC: C02F3/28 ,  C02F3/06 ,  C02F1/20 ,  C02F3/12 ,  C02F3/20 ,  B01D71/02

CPC classification number: C02F3/2853 ,  B01D61/14 ,  B01D67/0041 ,  B01D69/02 ,  B01D69/046 ,  B01D71/025 ,  B01D71/027 ,  B01D2311/263 ,  B01D2315/06 ,  B01D2323/12 ,  B01D2325/24 ,  C02F1/20 ,  C02F3/06 ,  C02F3/1273 ,  C02F3/201 ,  C02F3/2893 ,  C02F2101/16 ,  C02F2101/32 ,  C02F2209/03 ,  C02F2209/04 ,  C02F2209/06 ,  C02F2209/22 ,  C02F2209/42 ,  Y02E50/343 ,  Y02W10/15

Abstract: The present invention relates to water treatment process using pyrophylite ceramic membrane which purifies contaminant from wastewater by applying the pyrophylite ceramic membrane with immersion type, more particularly, in the water treatment process using the pyrophylite ceramic membrane including pyrophylite with 80 weight and alumina with 20 weight, characterized that comprises a S-1 step which pyrophylite ceramic membrane 10 is embedded and raw water is supplied to a reactor 100 blocked from outside, a S-2 step which obtains permenate water by operating suction pump 130 connected with the pyrophylite ceramic membrane 10, a S-3 step which recovers gas generated from the reactor 100 and a S-4 step which circulates part of gas generated from the reactor 100 to the reactor 100.