Swimming Pools Articles

  • Test of precoat filtration technology for treatment of swimming pool water

    The technical performance of a precoat filter was compared with that of a traditional sand filter. Particle concentration and size distribution were measured before and after the filtration of swimming pool water. Both the sand and precoat filters could reduce the particle concentration in the effluent. However, higher particle removal efficiency was generally observed for the precoat filter, ...


    By IWA Publishing

  • Sources of pharmaceuticals and personal care products in swimming pools

    Pharmaceuticals and personal care products (PPCPs) in swimming pool water are hypothesized to originate from fill water and anthropogenic sources like urine, sweat, swimwear and body surfaces. However, research exploring PPCP origins in pools is lacking. This research investigates PPCP sources at 31 swimming pools. Pool water was analyzed for 24 representative PPCPs using advanced liquid ...


    By IWA Publishing

  • Ingestion of swimming pool water by recreational swimmers

    The volume of water ingested by swimmers while swimming is of great interest to individuals who develop risk assessments using quantitative microbial risk assessment or epidemiological approaches. We have used chloroisocyanurate disinfected swimming pool waters to determine the amount of water swallowed by swimmers during swimming activity. The chloroisocyanurate, which is in equilibrium with ...


    By IWA Publishing

  • Removals of cryptosporidium parvum oocysts and cryptosporidium-sized polystyrene microspheres from swimming pool water by diatomaceous earth filtration and perlite-sand filtration

    Removal of Cryptosporidium-sized microspheres and Cryptosporidium parvum oocysts from swimming pools was investigated using diatomaceous earth (DE) precoat filtration and perlite-sand filtration. In pilot-scale experiments, microsphere removals of up to 2 log were obtained with 0.7 kg·DE/m2 at a filtration rate of 5 m/h. A slightly higher microsphere removal (2.3 ...


    By IWA Publishing

  • Limiting swimming pool outbreaks of cryptosporidiosis – the roles of regulations, staff, patrons and research

    Cryptosporidium is the leading cause of swimming pool outbreaks of gastroenteritis. Transmission occurs through the ingestion of oocysts that are passed in the faeces of an infected person or animal when an accidental faecal release event occurs. Cryptosporidium parasites present specific challenges for infection control as oocysts are highly resistant to chlorine ...


    By IWA Publishing

  • A full-scale study of Cryptosporidium parvum oocyst and Cryptosporidium-sized microsphere removals from swimming pools via sand filtration

    Removal of Cryptosporidium parvum oocysts and Cryptosporidium-sized microspheres was evaluated in full-scale swimming pools via high-rate sand filtration (31–34 m/h) with coagulation. Results showed that at least 90% of C. parvum oocysts and microspheres were removed by filtration with an initial dosage of coagulant B (1.56 mg/L), D (1.9 mg/L or 305 ...


    By IWA Publishing

  • DBPs in a chlorinated indoor swimming pool: occurrences and modeling

    Swimming pool water contains higher chlorine residual and is maintained at a higher temperature than tap water. It constitutes environments with high levels of disinfection byproducts (DBPs) in water and air due to continuous disinfection and constant organic loading from the bathers. Exposure to DBPs is inevitable for any bather or trainer while such exposure can have cancer and non-cancer ...


    By IWA Publishing

  • Case study - Synapsys - Making a splash in energy excellence

    Synapsys makes a splash in energy excellence Synapsys, UK leader in developing and supplying innovative communication interfaces for the built environment, is at the high-tech heart of a low carbon leisure centre building which has received a top accreditation for energy saving and attracted half a million visitors in its first year. The £7million new Wolverton Leisure ...

  • How UV can reduce corrosion in swimming pool structure - Case Study

    In 1985, twelve people were killed in Uster, Switzerland when the concrete roof of a swimming pool collapsed after only thirteen years of use.  The roof was supported by stainless steel rods in tension, which failed.  The Federal Materials Testing Institute, based in Duebendorf, Switzerland, and the Federal Materials Research and Testing Institute of Berlin concluded that the collapse ...


    By atg UV Technology

  • Reference: It's much nicer to bathe in your own pool

    These days the dream of your own swimming pool is cheaper and easier to achieve than you may think. In a private pool in the picturesque district town of Lörrach, the metering system DULCODOS® Pool Comfort ensures enjoyment in crystal-clear water. More information at ...

  • The best alternative to the protection of the UF membranes - Case Study

    Advance solutions to the recirculation of water in swimming pools. Problem The public swimming pools are continuously used during all the week for many people for making sport, amusement or relax. In these installations, the visual aspect and the sanitary conditions must be guaranteed all the time. In indoor public pools, even with the mandatory previous shower and the use of ...


    By Sistema Azud, S.A.

  • Water consumption in a public swimming pool

    Swimming pools are heavy consumers of potable water and energy in cities. Despite this, the lack of monitoring requirements produces a lack of references for their water consumption. This paper aims to fill this gap by presenting a case-study water consumption analysis of a public swimming pool in the city of Bologna (Italy). After upgrading the water fixtures and filters in summer 2012, ...


    By IWA Publishing

  • The application of computational fluid dynamics and small-scale physical models to assess the effects of operational practices on the risk to public health within large indoor swimming pools

    Swimming pools provide an excellent facility for exercise and leisure but are also prone to contamination from microbial pathogens. The study modelled a 50-m × 20-m swimming pool using both a small-scale physical model and computational fluid dynamics to investigate how water and pathogens move around a pool in order to identify potential risk spots. Our study revealed a number of lessons for ...


    By IWA Publishing

  • An overview of pool and spa regulations in Mediterranean countries with a focus on the tourist industry

    The Mediterranean area is densely populated and a very popular tourist destination. This study aimed at gathering up-to-date information on current national pool and spa regulations. We formulated and duly distributed to 20 Mediterranean countries a questionnaire divided into two sections: for pool and spa facilities, respectively. The questionnaire was formulated in such a way that a positive ...


    By IWA Publishing

  • Anglo-Continental - Case Study

    Project: Dining Hall Client: Anglo-Continental School of English Completed: July 2014 Floor area: 180m² Duration: 7 weeks Value: £137k Turnkey service elements completed: ...


    By Modulek

  • Ainslie Park Leisure Centre - Case Study

    5 years on: atg UV systems stand the test of time Ainslie Park Leisure Centre atg UV Technology, market leaders in the design and manufacture of Ultraviolet technology systems prides itself on its level of workmanship and quality. Five years ago atg UV Technology, replaced the existing ozone system at Ainslie Park Leisure Centre in Edinburgh with an atg UV ...


    By atg UV Technology

  • New York city leisure operators - Case Study

    New York City vs. Cryptosporidium Following major Cryptosporidium outbreaks in the UK and USA, Cryptosporidium has become a major concern for the leisure industry. Commonly found in lakes and rivers, Cryptosporidium has a thick outer shell, making it highly resistant to traditional methods of chemical disinfection such as chlorine, vastly increasing the risk of infection and illness, that ...


    By atg UV Technology

  • How UV disinfection can benefit your aquatic facility - Case Study

    The London Aquatics centre saw no less than nine world records broken in what has been described as the greatest sporting event of our time.   Whilst American Michael Phelps became the worlds’ greatest Olympian, history of a different kind was being made, quietly behind the scenes in the plant rooms of the London Aquatics Centre. Whilst an established technology in the swimming ...


    By atg UV Technology

  • Swimming Pool Chemistry made easy

    A new way to control biological activity in your swimming pool without using chemicals.  Healthier to you, savings in chemicals, savings in time and easy pool management.  Take a look at the full article and please contact me any where in the world if you would like to set up a similar system in your pool.  Waterdoc Limited is continuing to use this technology to improve water ...


    By Waterdoc Limited

  • Swimming Pool Chemistry Management Made Easy

    A new way to control biological activity in your swimming pool without using chemicals.  Healthier to you, savings in chemicals, savings in time and easy pool management.  Take a look at the full article and please contact me any where in the world if you would like to set up a similar system in your pool.  Waterdoc Limited is continuing to use this technology to improve water ...


    By Waterdoc Limited

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