SEOUL TAP WATER Arisu.Pdf
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MADE BY SEOUL, RECOGNIZED BY THE WORLD. Contents What is ? 05 General Status of Arisu 06 Past Seoul Waterworks 08 History of Seoul Waterworks 10 Vision 12 Seoul Waterworks Policy 1. Strict Raw Water Management and Cutting-Edge Water Arisu is the name of Seoul’s tap water, which is a compound word of Purification Technology 2. Stable Water Supply by Optimized Waterworks Network the Korean word ‘Ari’ meaning big, which was also the old name of the 3. IT-Based Scientific and Systematic Waterworks Operation Hangang River, and the Chinese character ‘Su (水)’ meaning water. 28 Technology Patents and Overseas Entry 32 Future Arisu 34 Q&A Seoul Tap Water Arisu 01. General Status of Arisu Production and Supply 3.2 million㎥ in average daily production, and 4.8㎥ in production facility capacity! Seoul Arisu takes responsibility for 10 million people in Seoul and the Seoul metropolitan area. Furthermore, with facility maintenance, anti-leakage, and scientific supply management, it maintains the world’s highest revenue water ratio (95.1%). Water Quality Seoul Arisu pursues the world’s safest water. We strictly manage the water quality from raw water to the water tap and disclose water quality information through the Seoul Water-Now System in real time. In addition, with advanced water purification, we are producing healthy and tasty tap water. Strict water quality management Raw Purification Tap water water 24-hour real-time 450 locations for Water quality 171 items the Arisu quality confirmation system monitoring above WHO criteria 220,000 households every year Arisu is moving beyond safe water to seek tasty water. Arisu selects guidelines for safe and tasty water and strictly reviews and manages nine items. Guidelines for safe and tasty water Drinking water Category Item Unit Guideline Background quality standard Minerals Essential for the human (Ca, Mg, Na, K) mg/L - 20~100 body Health Total organic 5.0 Good for health by removing carbon mg/L (monitoring item) 1.0 or less disinfection byproducts items Good for health by removing Turbidity NTU 0.5 0.3 or less microorganisms (protozoa, virus, etc.) Residual chlorine mg/L 4.0 0.1~0.3 Causing disinfection odor 20 Arisu! 2-MIB ng/L (monitoring item) 8.0 or less Causing moldy odor Geosmin ng/L 20 8.0 or less Causing soil-like odor The world’s safest and tastiest water consumed Taste (monitoring item) by 10 million Seoul citizens. items Copper mg/L 1.0 0.05 or less Causing green water Causing red water and Iron mg/L 0.3 0.05 or less metallic odor o Appropriate to drink with Temperature C - 4~15 fresh taste 05 Seoul, ready to share with the world! Seoul Tap Water Arisu It is not that people in Seoul drank this tasty and safe water from the beginning. Just 50 years ago, waterworks were not properly In the past, there used to be people who fetched water distributed, which made it difficult to from faraway places and sold access safe drinking water. it. In Seoul, they were called “Bukcheong water sellers.” Tap water in Seoul was not very clean up until the 1950s when there were still such water sellers. 06 07 Seoul, ready to share with the world! Seoul Tap Water Arisu Rapid urbanization and growing population! Yesterday The first thing necessary to make Seoul a sustainable city was to provide clean and safe water in a stable manner. and Today 1900 1960 1980 1989 2000 2010 Introduced waterworks Expanded waterworks facilities Stabilized the tap water supply Launched Seoul Waterworks Made tap water high quality Strengthened international technology and overcame 1961 1981 Authority 2001 competitiveness difficulties Created 5 offices Launched the Bureau of Waterworks 1991 Produced Arisu water bottles 2010 1908 and Sewage Reached 100% in the water Constructed the Yeongdeungpo 1962~ 67 2004 Provided Seoul’s waterworks for the penetration rate Advanced Water Purification Center Expanded and increased the Ttukdo, 1981~ 89 Registered the Arisu trademark first time Received Project Innovation Noryangjin, and Guui Water Purification Expanded the Paldang, Guui, 1996 2006 Award from the International Water 1941 Plants, and constructed the Bogwang Yeongdeungpo, Amsa, and Ttukdo Conducted Phase 1 research on Provided tap water one-stop civil Association (IWA) Constructed the Guui Water Purification Water Purification Plant Water Purification Plants advanced water purification services Plant 2012 1971 1986 1998 2007 Acquired National Science Foundation 1948 Constructed the Yeongdeungpo Water Constructed the Amsa Water Completed the Gangbuk Water Implemented the Arisu quality (NSF) Quality Assurance as bottled tap Established the Bureau of Waterworks Purification Plant Purification Plant Purification Plant, and conducted confirmation system water for the first time in the world in Seoul water quality control assessment on 1972 Won a consulting project to establish each water purification plant 2008 Created civil service centers in Automatically measured water quality infrastructure in Pulau Muara Besar waterworks offices 1999 for 24 hours a day (PMB), Brunei Conducted Phase 2 research on 1978 ~79 Disclose in real time on the Internet 2016 advanced water purification Constructed the Seonyu, Paldang, and Opened the Waterworks Museum Ensured ISO 22000 (food safety Sinwol Water Purification Plants 2009 management) production and supply Received UN Public Service Award Effectively managed hazards across the process 08 09 Seoul, ready to share with the world! Seoul Tap Water Arisu Clean water 水 1990s · Established the water supply system that has no outage · Expanded quantitative supply across the city Safe water 水 · Tested water quality in real time by supply stage 2000s · Introduced 60 water quality items + 111 internal monitoring items (171 water quality test items) Tasty water 水 2010s · Introduced advanced water purification facilities 100% · Removed substances creating unpleasant taste and odor Continued expansion of water purification plants, an expanding waterworks network, systematic revenue water ratio management, and strict water quality management! As a result, Seoul has become a city where its citizens drink the world’s best water. 10 11 Seoul, ready to share with the world! Seoul Tap Water Arisu Clean, safe, To get clean, safe, and tasty tap water, it is crucial to manage raw water from the 01. beginning. In particular, Seoul with four distinctive seasons has large variability in the and tasty water quality of raw water due to different levels of precipitation according to the season, and Raw Water the river closest to the large city of Seoul has many potential pollution sources. In this Management regard, by scientifically managing and measuring the water quality, we manage raw Arisu! water strictly from the beginning. What has made it possible? Pursue projects to protect • Operate the Hangang River Environment Monitoring Group to manage water sources Hangang River water • Limit pollutant littering and development projects by law sources and improve the • Fund projects to improve the water quality in water sources water quality Operate the scientific raw • Operate the biological early warning system that uses microorganisms and water condition closteriaceae (algae) in water intake plants measurement system • Install oil barriers around water intake plants • Reinforce the response system for the deterioration of raw water including odorous Know-How 1 substances - Operate the ‘algae warning system’ to prevent harm from green algae Strict Raw Water Management and Cutting-Edge Water - Use Seoul’s internal ‘taste and odor substance management standards’ due to Purification Technology limitations in managing odorous substances Attention Alert Management level 2-MIB Geosmin 2-MIB Geosmin Odorous substance (ng/L) 20 100 100 300 Operate biological early warning systems in water intake plants - Number of biological early warning systems: 4 Gangbuk, Jayang, and Pungnap Water Amsa Water Intake Station Intake Stations (closteriaceae) (electrochemically active microorganism) Heavy metals, pesticides, etc. Household wastewater, etc. ※Gwangam Water Purification Plant: Use monitoring data (water flea, closteriaceae) from K-water at Paldang Dam Continuously check the water quality and install automatic water quality meters • Regularly conduct water quality tests on 29 items at 32 water sources and 158 items at five Applicable Acts for the protection of water sources water intake locations • Article 38 of the Framework Act on Environmental Policy • Install automatic water quality meters that can monitor eight items including algae (Chlorophyll a) and phenol at water sources 24 hours a day (Paldang Lake designated as a special measure area) • Article 8 of the Water Supply and Waterworks Installation Act Strengthen water purification in response to raw water changes by season (Paldang managed as a water-source protection area) • Reinforce water purification in each process when there are multiple algae and odorous • Article 4 of the Act on the Improvement of Water Quality and Support for Residents of substances in the dry season the Han River Basin (designating and operating riparian zones) • Obtain water purification chemicals in preparation for high turbidity in the monsoon season and inspect chemical injectors • Article 13 of the Act on the Improvement of Water Quality and Support for Residents of the Han River Basin (projects for improvement of water quality) 12 13 Seoul, ready to share with the world! Seoul Tap Water Arisu Arisu does not have any odor. Advanced Water Purification • Advanced water purification is a technology that removes unpleasant taste and odor, 02. There is no chemical odor, which usually comes from tap water, no soil-like taste, System existing tap water’s biggest drawbacks, and gets rid of environmental pollutants. and no environmental hormones such as antibiotics. Arisu’s own advanced water • This system adds ozone and granular activated carbon processing to the existing Purification purification system, re-chlorination injection system, and membrane filtration system standard water purification, completely removes 2-MIB and geosmin, and gets rid of Technology remove odor and hormones and produce the word’s tastiest water.