수돗물의 淨水處理 現況과 展望 = Current Status of Drinking Water Treatment and its Countermeasure

다국어 초록 (Multilingual Abstract)

Summary1. Drinking water resources1)Korea
Tap water should be shown the complexity of measures neccessary to secure water quality, especially with respect to drinking and bathing.Designated reservoirs Paldang and Daechung as the Special Environment Protection Areas to regulate new pollution sources and to facilitate construction of wastewater treatment facilities.In this country, 91% of total drinking water resource, consist of 66% stream water, 25% dam water, 7% dune filtrate, 1% each of spring and ground water, are from the surface water. The total volume of annual mean water resources due to precipitation.
Over 8% of the total resources are class Ⅲ as shown in the table., especially the water quality of downstream of Nakdong and Yeongsan river are getting worse due to continued economic and social development.
Despite massive government investment in domestic water supplies, the rate of tap water supply is 82.9%, and the amount of water supplied for each person is 398ℓ/day in the end of 1996.


2. Pollutants and their sources of drinking waterThe quality of drinking water has been worried due to many factors such as the pollution methods and the erosion of water supply pipes. The problems can be improved by the development of the new technology and more investment in new infrastructure. Pollutants and their source are described as follows;1) Before treatment : Natural substances, chemicals, microorganismsThe natural substances in the water are nutrients mostly as iron, manganese, sulfur ets., and cause odor problem with greater concentration. Chemicals are· Waste/wastewater treatment plants, landfill site, leaking from storage tank
· Discharge from sewage treatment plants and industrial area
· toxic chemical accident
· dumpingMpst of microorganisms cause water born disease.
2) In the process :Added chemicals in the treatment process as coagulants and disinfectants and by-products such as THM

3)After treatment :

Added chemicals in the water distrbution and supply as chlorine(residual chlorine), inhibit corrosion and contaminated bacteria through point-of-use treatment device and leaking distributing pipe line

3. Environment Standard

To preserve the pleasant water environment and protect the human health from any water pollution, the environmental water quality standards in the rivers and lakes is established and standards, BOD and COD, are presented in the table.




There are 552 water works in the end of 1994, environmental water quality standards in the rivers and lakes is classified from class I to V in Korea. Four different treatment processes, A to D type, have been applied to each classified water quality as shown in the table.


A type process is applied for stream water of 173 water works and B, C type process are applied for stream water of 121 water works X and dune filtrate. And D type process is operating for ground water and clean mountain water.

목차 (Table of Contents)

• 1. 序 論
• Ⅱ. 上水原水
• 1. 上水原水의 種類 및 水質
• 2. 各國의 水質環境基準
• Ⅲ. 淨水處理方法
• 1. 上水原水의 水質에 따른 淨水處理基準
• 2. 一般的인 淨水處理方法
• 3. 高度淨水處理現況
• Ⅳ. 수돗물의 水質現況
• Ⅴ. 處理現況
• 1. 韓國의 水處理劑 指定現況
• 2. 全國淨水場의 水處理劑 使用現況
• 3. 各種 酸化劑의 特徵
• Ⅵ. 結 論