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：US20200325043A1

公开(公告)日：2020-10-15

申请号：US16677679

申请日：2019-11-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seong Pil JEONG ,  Kyungjin CHO ,  Jae Woo CHOI ,  Seok Won HONG ,  Seunghak LEE ,  Eun-Ju KIM ,  Jae Shik CHUNG ,  Hien Thi NGUYEN ,  Youngjae KIM

IPC: C02F1/52 ,  E03B3/34

Abstract: The present invention is an aquifer storage and recovery system using a natural coagulant, in which in purifying raw water through aquifer storage and recovery, assimilable organic carbon (AOC) included in the raw water is effectively removed using a natural coagulant produced in the aquifer storage and recovery process, thereby reducing the time required to purify raw water by aquifer storage and recovery.