公开(公告)号：US20170355979A1

公开(公告)日：2017-12-14

申请号：US15361539

申请日：2016-11-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyokwan BAE ,  Seockheon LEE ,  Yunchul CHUNG ,  Jin Young JUNG ,  Dae Hee CHOI ,  Dong Ryeol LEE

IPC: C12N11/10 ,  C02F3/28 ,  C02F3/10 ,  C02F101/16

CPC classification number: C12N11/10 ,  C02F3/106 ,  C02F3/107 ,  C02F3/108 ,  C02F3/302 ,  C02F3/303 ,  C02F3/307 ,  C02F3/348 ,  C12N11/04 ,  C12N11/08 ,  Y02W10/15

Abstract: Disclosed is a method for preparing the same. The method for preparing a carrier including ammonium oxidizing bacteria immobilized therein includes: preparing a PVA-alginate mixed solution containing PVA mixed with alginate; adding sludge containing ammonium oxidizing bacteria and sodium bicarbonate (NaHCO3) to the PVA-alginate mixed solution to obtain a foaming-beading solution; and dropping the foaming-beading solution to a saturated boric acid solution to obtain beads including sludge immobilized therein, wherein sodium bicarbonate (NaHCO3) is decomposed to produce carbon dioxide (CO2) which is discharged to the exterior of the beads to form pores in the beads, when the foaming-beading solution is dropped to the saturated boric acid solution to obtain beads including sludge immobilized therein.

公开(公告)号：US20160176743A1

公开(公告)日：2016-06-23

申请号：US14840664

申请日：2015-08-31

Applicant: Korea Institute of Science and Technology

Inventor： Hyokwan BAE ,  Seockheon LEE ,  Yun Chul CHUNG ,  Jin-Young JUNG ,  Hee Jeong YANG

IPC: C02F11/04

CPC classification number: C12M25/16 ,  C02F3/307 ,  C02F3/34 ,  C12M27/02 ,  C12N1/20 ,  C12N11/10

Abstract: The present disclosure provides an apparatus for enrichment culturing of anaerobic ammonium-oxidizing bacteria, including: a reactor containing a culture medium containing ammonium and nitrite; and activated sludge beads in which the anaerobic ammonium-oxidizing bacteria in the culture medium are supported, wherein the amount of the activated sludge beads is 25-35% based on the volume of the culture medium. Because loss of the anaerobic ammonium-oxidizing bacteria is minimized and the beads have good mechanical strength, the apparatus for enrichment culturing of anaerobic ammonium-oxidizing bacteria can be operated for a long time.

Abstract translation: 本公开内容提供了一种富氧培养厌氧氨氧化细菌的装置，包括：含有含有铵和亚硝酸盐的培养基的反应器; 和负载培养基中的厌氧性氨氧化细菌的活性污泥珠，其中活性污泥珠的量相对于培养基的体积为25-35％。 由于厌氧氨氧化细菌的损失最小化，珠粒具有良好的机械强度，厌氧氨氧化细菌的富集培养装置可以长时间运转。

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。