TREATMENT SYSTEM AND METHOD FOR TAP WATER, USING CALCIUM AGENT

WIPO Patent Application WO/2017/135762

A1

The present invention relates to a treatment system and method for tap water, using a calcium agent, wherein carbon dioxide and the calcium agent are added to post-sedimentation water in line before a filtration basin to produce purified water. The treatment system for tap water, using a calcium agent comprises: a lime water-preparing unit for injecting slaked lime into influent water flowing from the raw water which has been treated in a settling basin, to prepare lime water; a pH-adjusting unit for lowering a pH of raw water by injecting carbon dioxide into the raw water so as to prepare pH-adjusted raw water; a dispersion unit for dispersing the lime water prepared in the lime water preparation unit to produce dispersed lime water; a mixing unit for mixing the dispersed lime water produced in the dispersion unit and the raw water pH adjusted in the pH-adjusting unit at a ratio of 3-5 mL-Ca(OH)2/min : 12,000-15,000 mL-raw water/min to produce process water; a filtration unit for filtering the process water produced in the mixing unit; and a disinfection unit for disinfecting the process water filtered in the filtration unit by injecting a disinfectant thereinto.

PARK YOUNG-BOG (KR)
PARK EUNHEE (KR)
LEE JINSUK (KR)
LEE HYANG-YEON (KR)
LIM HEON-TAE (KR)
CHOI YOUNG-JUNE (KR)
CHUNG DEUK-MO (KR)

PCT/KR2017/001228

August 10, 2017

February 03, 2017

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SEOUL METROPOLITAN GOVERNMENT (KR)

C02F1/66; B01F7/16; C02F1/00; C02F1/50; C02F5/00; C02F5/06; C02F5/08

KR100573223B1	2006-04-24
KR20100054435A	2010-05-25
KR100495193B1	2005-06-16
KR100770024B1	2007-10-30
KR20030068056A	2003-08-19

YOON, Yu Kwang et al. (KR)

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