公开(公告)号：US20170283293A1

公开(公告)日：2017-10-05

申请号：US15381177

申请日：2016-12-16

Applicant: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES (KIGAM)

Inventor： Hee-Young SHIN ,  Sang-woo JI ,  Young-soo HAN

IPC: C02F11/12 ,  C04B7/40 ,  C02F11/14

CPC classification number: C04B7/40 ,  C01F11/18 ,  C01P2006/80 ,  C02F1/5236 ,  C02F1/66 ,  C02F11/127 ,  C02F2101/10 ,  C02F2103/12 ,  C04B14/28 ,  C04B18/0418 ,  C04B18/16 ,  C04B20/023 ,  C04B28/02 ,  Y02W30/91 ,  Y02W30/95

Abstract: The present disclosure relates to a method for treating and recycling, in an environment-friendly manner, sludge and waste water generated in a process for crushing waste concrete and recycling waste concrete into aggregates. Sand is separated from sludge configured from cement components and sand components and is recycled as fine aggregates, and the cement components can be used as concrete admixtures. Furthermore, the present invention introduces a mineral carbonation technique and thereby allows pH of waste water to satisfy an environmental standard and allows high value calcium carbonate to be produced.

公开(公告)号：US20160244344A1

公开(公告)日：2016-08-25

申请号：US15052136

申请日：2016-02-24

Applicant: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES (KIGAM)

Inventor： Sang-min PARK ,  Sang-woo JI ,  Kitae BAEK ,  Chamteut OH ,  Gil-jae YIM ,  Young-wook CHEONG

IPC: C02F1/461 ,  C21B15/00 ,  C22B61/00

CPC classification number: C02F1/46104 ,  C02F1/463 ,  C02F1/4672 ,  C02F1/5209 ,  C02F1/66 ,  C02F2001/4619 ,  C02F2001/5218 ,  C02F2101/20 ,  C02F2101/203 ,  C02F2101/206 ,  C02F2103/10 ,  C02F2209/04 ,  C02F2209/06 ,  C02F2301/08 ,  C21B15/00

Abstract: The present invention relates to an apparatus and a system for treating acid mine drainage. The apparatus includes first and second reaction baths for receiving acid mine drainage, wherein the first and second reaction baths are provided with inlets and outlets and are separated from each other to prevent communication between acid mine drainages, an electrically connected anode and a cathode installed in each of the first and second reaction baths, and an electron transport medium for connecting the first reaction bath receiving the anode and the second reaction bath receiving the cathode. The electron transport medium blocks the transport of metal cations and allows the transport of electrons between acid mine drainages in the first and second reaction baths. Ferrous ions are oxidized to ferric ions in the acid mine drainage to precipitate hydroxides in the first reaction bath, and hydroxide ions are produced in the second reaction bath.

Abstract translation: 本发明涉及一种用于处理酸性矿井排水的装置和系统。 该装置包括用于接收酸性矿井排水的第一和第二反应槽，其中第一和第二反应槽设置有入口和出口，并且彼此分离，以防止酸性矿井排水之间的连通，安装在电气连接的阳极和阴极 第一反应槽和第二反应槽中的每一个以及用于连接接收阳极的第一反应槽和接收阴极的第二反应槽的电子传输介质。 电子传输介质阻止金属阳离子的运输，并允许在第一和第二反应槽中的酸性矿井排水之间传输电子。 在酸性矿井排出中，亚铁离子被氧化成铁离子，在第一反应槽中沉淀氢氧化物，在第二反应槽中产生氢氧根离子。