Artist's impression of Castelão stadium

Castelão stadium - the world's largest vacuum sanitary installation

Originally built in the 1970’s the Castelão stadium in Brazil is undergoing a complete renovation in preparation for the 2014 FIFA World Cup. A Jets™ vacuum sanitary system will ensure the 70,000 spectators have access to reliable and hygenic toilets at every match.

Challenges that faced the designers

  • Brazil is facing a water crisis in urban areas, and infrastructure for water and sewage is being overloaded. Stadiums add considerably to this strain on infrastructure, when tens of thousands of fans flush toilets during half time.
  • It is common for stadiums to have water tanks holding millions of litres of water, as the public water supply simply cannot cope with this demand.
  • Laying new 110mm soil pipes that rely on gravity for sewage transport is often difficult in renovation projects, especially in heavy concrete structures such as stadiums.
  • With Brazil’s high water prices, operating a traditional toilet system with large numbers of users is very costly.

 

Jets™ solution

  • Using just 1 litre of water per flush, Jets™ vacuum systems reduce the volumes of water and sewage associated with toilet flushing by up to 90%.
  • The size of water tanks in the stadium can be considerably reduced.
  • 50mm pipes used in vacuum systems are easier to install when renovating. Pipes can be laid horizontally or even upwards if need be.
  • The low water consumption of Jets™ systems means their ROI time is remarkably short in areas such as Brazil where water is pricey.

 

Results for the Castelão stadium

Even conservative estimates indicate savings in excess of 500,000 litres (about 130,000 gallons) of fresh water at every match, when the renovation is completed using Jets™. When finished, the stadium building will have the world’s largest onshore vacuum sanitary installation. The increased hygiene of vacuum toilets compared to traditional toilets, is an added bonus for spectators.

Click here to download case study (PDF 1.2 Mb).

 

Headed for Brazil

 

This photo shows Lennart Korsnes of Jets Vacuum doing final assembly on one of the very vacuum units used at the Castelão stadium. An eager football fan himself, he would ideally have liked to accompany the unit all the way to the stadium in Brazil.

Six Jets™ 130MBA vacuum units comprising a total of 12 Jets™ 65MBA Vacuumarator™ pumps were supplied for the stadium along with 906 Jets™ 50M vacuum toilets.

 
 
 

More about stadium sanitation

 

Vacuum toilet systems help the Castelão stadium save water and money, and provide a higher level of hygiene than traditional toilets.

If you'd like even more information about the challenges stadiums face, and how Jets™ works to solve those challenges, read on below.

 
 

Extreme sanitary challenges in all stadiums

When thousands of fans visit the toilets within a few minutes, you need enormous water and sewage capacity - unless you install a vacuum sanitary system. Costly infrastructure needs can now be replaced with cost-effective vacuum solutions.

FIFA recommendations

Stadiums should have at least 20 toilets for each 1000 women, and 15 toilets and/or urinals for each 1000 men, with a higher ratio in VIP areas. The infrastructure required to achieve this may be difficult to provide.

Jets™ meets the recommendations

Jets™ vacuum systems can meet the recommended specifications and cope with high flushing rates in short periods, proven for decades on the world’s largest cruise liners. The small footprint of the system, simpler logistics, less need for core drilling and sewerage trenching make it easier to install vacuum toilets. Small-diameter vacuum piping can be routed upward and around obstacles.

Water savings

Gravity toilets for stadiums need large volumes of water. Using vacuum systems, water consumption can be reduced by up to 90% compared with gravity toilets.

Sewerage

The volume of sewage from the stadium may overload the existing infrastructure. Vacuum toilets reduce sewage volumes by up to 90%, reducing the load on the existing public network.

Difficult terrain

Geological conditions at stadiums can make excavation difficult. Vacuum piping can be laid in shallow trenches in flat, rocky, sandy, or swampy terrain, reducing installation and maintenance costs. The built-in vacuum can also be used to pump sewage to the nearest connection point.

Hygiene

Inadequate, unhygienic and dirty toilets may be a health risk and encourage anti-social behaviour. In Jets™ systems, the powerful vacuum draws the waste along with more than 60 litres of air into the piping with every flush, reducing aerosols and odours. Spectators respect clean and efficient toilet facilities.

 
 
 
 
 
 
 
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