TITLE

Review of swimming-associated cryptosporidiosis and Cryptosporidium oocysts removals from swimming pools

AUTHOR(S)
Lu, Ping; Yuan, Tao; Feng, Qiyan; Xu, Aiqin; Li, Jiayuan
PUB. DATE
January 2013
SOURCE
Water Quality Research Journal of Canada (IWA Publishing);2013, Vol. 48 Issue 1, p30
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this paper, outbreaks of cryptosporidiosis in swimming pools in the last 20 years are summarized. Cryptosporidium oocysts are very resistant to many disinfectants, including chlorine, one of the most widely-used disinfectants in swimming pools. Ozone or UV is shown to inactivate Cryptosporidium, while not effective to newly introduced Cryptosporidium and bacteria because of no residual ozone or UV in the treated swimming pool water. Additionally, swimming pool sand filters or cartridge filters are not able to effectively remove Cryptosporidium (removal rate <50%). Above 99% Cryptosporidium removals are achieved in drinking water treatment, but swimming pool water treatment is different from drinking water treatment: no coagulation is performed prior to filtration in most US swimming pools, filtration rate is four to five times higher for swimming pool water treatment compared with drinking water treatment, and the input compounds and microorganisms from bathers continuously recirculate in the swimming pool. Moreover, up-to-date Cryptosporidium or Cryptosporidium surrogate removals from swimming pools are discussed, and alternative swimming pool treatment techniques are reviewed.
ACCESSION #
94753637

 

Related Articles

  • Selecting Mechanical Dewatering Equipment Guidance for Drinking Water Systems. Civardi, John // WaterWorld;May2003, Vol. 19 Issue 5, p83 

    Presents a guide in selecting mechanical dewatering equipment for drinking water systems. Assessment of the impact of recycle streams on the treatment plant in terms of turbidity and filter run length; Characterization of the quality of residuals; Identification of the end users.

  • Solve those pool-treatment issues. Williams, Tom // Water Technology;Mar2008, Vol. 31 Issue 3, p48 

    The article presents tips on treating residential-pool water, according to Dennis Ashworth of SP&S Water Treatment Specialists. Unlike single-pass drinking water systems, in which all of the water in the system is treated shortly before it is consumed, a pool system only treats a small fraction...

  • 'Piggyback' business with a hospital account. Marowitz, Norm; Unger, Kevin // Water Technology;Mar2008, Vol. 31 Issue 3, p40 

    The article discusses the advantages of having additional water-supply equipment in a hospital. By incorporating additional equipment, purified drinking water can be treated further, producing deionized (DI) water of various qualities. Total water quality management should include recycling or...

  • AROUND THE INDUSTRY.  // Water Technology;May2012, Vol. 35 Issue 5, p6 

    The article presents water technology news briefs from the U.S. A plan to implement safer drinking water has been launched by the Student Government at the University of Texas (UT). Scientists from UC Davis have said that residents in the southern San Joaquin and Salinas valleys could be in...

  • California sets 6 ppb perchlorate maximum.  // Water Technology;Nov2007, Vol. 30 Issue 11, p10 

    The article reports that California's new statewide standard for the presence of perchlorate in drinking water took effect on September 19, 2007. The rule sets the California maximum level for perchlorate at 6 parts per billion, or 6 micrograms per liter. There is no federal maximum contaminant...

  • UF -- a global technology. Wheeler, Susan V. // Water Technology;Dec2009, Vol. 32 Issue 12, p31 

    The article offers information on ultrafiltration (UF) technology for the purification of water. As a pretreatment, UF is gaining ground in municipal drinking water systems, displacing conventional technologies such as clarifiers, sand filters and multimedia filters, says Sean Caughron, sales...

  • ANYTHING BUT DRY. JAMES, RYAN; BRIGHTBILL, NATHAN // Landscapes/Paysages;Fall2013, Vol. 15 Issue 4, p9 

    An introduction to the journal is presented in which the editor discusses various reports within the issue on topics including the supply of clean drinking water as well as the ability of water in unifying a campus, captivating children and lending a fleeting voice.

  • Research on micro-particles distribution character in water treatment processes. Liu Guangqi; Xu Yongpeng; Kong Yanhong; Jiang Lihui // Water Science & Technology: Water Supply;2008, Vol. 8 Issue 1, p25 

    In this paper we studied the particle size and distribution (PSD) character during conventional water treatment process. By measuring the particle size and distribution of raw-water, settled water and filtered water, we developed a log-log model between particle diameter and amount, which can be...

  • Considerations for Single-Use Arsenic Adsorption System. Aguirre, Roman J.; Ross, Richard R. // WaterWorld;Jan2006, Vol. 22 Issue 1, p22 

    The article reports on the revised arsenic rule that will reduce the acceptable levels of arsenic in drinking water in the U.S. The rule requires water systems to further enhance their ability to reduce arsenic levels. Although, there has been full documentation on the operating benefits of...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics