A Study on the Water Quality of Indoor Swimming Pools and Waterscape Facilities

다국어 초록 (Multilingual Abstract)

Waterscape facilities and swimming pools are popular spaces for leisure and exercise. In particular, in the case of waterscape facilities, the number of new apartment buildings and park sites has increased, and indoor swimming pools have become leisure facilities that many people enjoy due to the increase in the number of users because of the activation of sports-for-all. For these facilities, clean water quality control is most important because tap water and underground water come into direct contact with the human body.
A survey of 200 samples of swimming pools showed that no P. aeruginosa and E. coli were detected, but the nonconformity rate due to free residual chlorine and combined residual chlorine was 6.5%. Since there is a high possibility of contamination by users, it is necessary to set the measurement cycle of free residual chlorine and combined residual chlorine for clean water quality management.
A water quality analysis result of waterscape facilities showed that no P. aeruginosa were detected. But P. luteola was detected once in the early stages of operation in the stream type with slow water flow and low water depth, and was not detected again after disinfection treatment. B. cepacia was detected once in the waterfall fountain and twice in the stream. The nonconformity rate of E. coli was 5% for waterfall fountain, 19% for stream and 6% for general fountain. Due to the nature of the facility, the free residual chlorine was quickly consumed by the water's aeration and turbulent action. In this study, the concentration of free residual chlorine decreased to 0 mg/L in about two days, the disinfection effect is reduced, more than two times a week is needed.