Evac Building

1EVAC GRAVITY FREE SOLUTIONS for BUILDINGSBuilding SectorEvac is a company of the Zodiac Marine & Pool Group2Evac – The World LeaderEvac designs, manufactures and markets environmentally friendly waste and wastewater collection and treatment solutions for the marine and building industry worldwide.Evac offers total wastewater management systems for building and marine. Current technology and continued innovation are the cornerstones for this international business and its market-leading position. Vacuum TechnologyThe vacuum system is independent of gravity. The sewage is transported by air pressure instead of water and gravity. Water is used only for rinsing the bowl, not for transporting the waste. A vacuum system can also lift the waste vertically. How does it work?The Evac wastewater handling solution is a closed system, which consists of vacuum toilets, vacuum interface units, vacuum piping, vacuum collection tanks and wastewater treatment plants. The solution is based on vacuum, not gravity, which makes it possible to flush the waste horizontally or even vertically into overhead piping and, if needed, also around obstacles.The Evac solution is environmentally friendly. With low water use – up to 80 % less than used in traditional toilets - it reduces sewage volumes and thus meets the requirement of small environmental footprint. The grey waters, originating from washbasins and being flushed through the Evac wastewater handling system, are clean enough to be used for irrigation or toilet flushing.Heathrow Airport During the building of the new terminal at Heathrow, British Airways decided to create 100 private bathrooms for its business and first-class customers. However, conservation issues were central to the planning on this project.The Evac Vacuum toilet with its 1.2 liter flush was the obvious choice for water conservation. In addition to this, the constraints of the building meant that no drainage pipes were able to enter the floors below. The answer was a vacuum drainage system which allowed maximum flexibility of layout but contained all of the pipework within the BA domain and with no floor penetration.St. Pancras Railway Station While providing the most modern up-to-date facilities for its users the redevelopment of St. Pancras required preservation of the historical nature of the building.The flexibility of the Evac Vacuum Drainage System meant that both these criteria could be met. A drainage system which was not dependant on falls meant that toilets could be located at either end of the building without the need for major excavations or ground works. The high volume of passengers would mean that toilet flushing would be a major use of water. With 1.2 litres per flush the Evac Vacuum toilet reduced toilet flushing water by 80%.Where to use it?Because of their versatility and low water use the Evac applications can be implemented in numerous areas:Supermarkets• Railway stations, airports, schools and universities, medical • care buildings etc., where the use of toilet and sanitary facilities is very heavyOther public buildings, such as historic buildings, high-rise • buildings, shopping malls, exhibition centers, prisons etc.Why to use it?The Evac solution minimizes the use of fresh water for toilet flushes. At the same time it offers you ultimate freedom of piping design. Additionally, the reuse of grey water contributes to a smaller water footprint at your building.The Evac vacuum toilet uses only 1,2 liters per flush as opposed to 6 -7 liters for the conventional toilet. This means dramatic reduction in water consumption, savings in water rates and also reduction in the amount of sewage produced. The Evac solution also makes it possible to recycle grey waters to be used as toilet flush water.During each flush the Evac solution consumes 60 liters of air. This removes viruses, bacteria and odors from the bowl and simultaneously enhances hygiene and personal comfort in the sanitary facilities. Each Evac solution forms a closed loop. This is particularly important in certain organizations, e.g. hospitals, research facilities and prisons, where the waste must be contained or is considered high-risk.3Unbeaten Evac benefitsEnvironmentally friendlyAs conventional toilet consumes seven litres of water every time it is flushed the Evac toilet uses just over one litre of water per flush.Maximum FreedomEvac gives the building designer complete freedom from the restrictions of gravity fed pumping. Bathrooms and toilets do not need to be tied into a services core but can be located where they best suit the design.Design FlexibilityEvac system offers space planning freedom. In speculative buildings, a prospective tenant will often wish to plan the space available in a building to suit its business operation. The Evac system gives him/her the extra capability. Final decisions on the floor plan can be delayed leaving maximum room to manoeuvre and giving the client maximum flexibility to plan space.Savings in Costs and TimeOne of the main benefits of installing an Evac system is the real cost savings that can be made. The time required to design and install an Evac system is significantly shorter than the time needed for traditional gravity systems. This reduces on site costs and helps meet construction deadlines.1 Bligh Street, Sydney, Australia1 Bligh Street is a green building with unrivalled sustainable features. It is under construction in Sydney, Australia, and has already been awarded the 6 Star Green Star rating. One of the innovations contributing to the rating is the black water treatment system to be delivered by Evac. The building is scheduled to be ready on December 2010.Mahoning county jail“The original design using the Evac Vacuum Toilet System was primarily due to high water/sewer costs and inproved security. Our experience (installed in 1995) is that the predicted savings are very much in line with the original estimate…and if I had the choice of a(n Evac ) Vacuum Toilet System over gravity in my next jail, I would choose (Evac),” says Mr. Ed Drennen, Facilities Maintenance Manager/ Mahoning Country Jail.Administrativo do Governo de Estado de Minas Gerais, BrazilThis building complex is designed by the world famous architect Oscar Niemeyer. The reason for choosing Evac was water shortage and flexible piping allowing innovative design.The complex consisting of the State Administrators Offices, Governors Palace and workers residences is prepared to receive a population of 10.000 people a day and is equipped with over 1500 Evac Vacuum Toilets.4Green Building,also known as green construction or sustainable building, is the practice of creating structures and using processes that are environmentally responsible and resource effi cient throughout a building’s life-cycle.The new technologies are constantly being developed to complement current practices in creating greener structures. However, the common objective is that the green buildings are designed to reduce the overall impact of the built environment on human health and the natural environment. This is made by effi ciently using energy, water, and other resources.5Water CycleWhile the vacuum toilet system has several advantages over a gravity system, the most noticeable benefi t is the fact that it uses up to 80% less water, even when compared with a low fl ush toilet. This brings many direct and indirect advantages. Due to the fact that the vacuum toilet system is more effi cient and has a lower level of water consumption, less water has to be pumped to the building. Once that water has been pumped to the building, it is to be distributed to various locations. In larger buildings water has to be pumped over greater distances; smaller quantities of water reduces the amount of power required to distribute it.If the building stores it’s own water, Evac’s vacuum toilet system offers several advantages. The reduced amount of water usage means that a smaller water storage tank is needed. With smaller dimensions it directly affects the amount of free fl oor space, or in case of underground storage tanks, the amount of excavation needed to be done. Due to the reduced weight it may possibly reduce structural requirements, if the tank is to be placed on the roof of the building.Once used, the fl ushed toilet water has to be disposed of. Large buildings using conventional gravity systems need several sewage pumping stations, all of which require the initial investment, take up space and consume power to transfer the black water to the main sewage line. Evac’s vacuum operated systems do not require any additional pumping stations, and due to lesser quantities of water used in the process, smaller amounts of sewage is produced. A vacuum drainage system is able to transfer all the waste in a building to any single location without additional pumping stations.A vacuum system also benefi ts possible in-house black water treatment. Lower sewage levels allow for a smaller and cheaper treatment plant, consequently saving space and reducing operational costs due to the lowered power consumption.Vacuum systems also lend themselves to the recycling of gray water. As with black water, the vacuum system is able to collect all gray water to a single location, such as an Evac gray water treatment plant. Recycled gray water may be used for a variety of purposes, such as toilet fl ush water, technical water or for irrigation.A vacuum system typically has pipe sizes that are 50% smaller than a gravity system’s. Since they replace the old gravity system’s pipes, they don’t take up additional space in the ceiling, nor do they require new service ducts – even if a black and gray water separation system has been used.6Evac system saves environment, resources and moneyEvac systems are very environmentally friendly. One of the biggest savings on natural resources is the dramatic reduction in water consumption. A typical Evac vacuum toilet requires just over one litre of water per flush which means one sixth of that is used by conventional systems. Using less water will bring significant cost savings as the cost of water rises. Reduced water volume means reduced sewage volume and reduced sewage volume means reduced operating costs. Evac systems are also cleaner than conventional systems. Environmentally friendly• Increased hygiene• Reduced Sewage Loading• Reduced Water Storage• Less Pump Stations• Secure Enclosed System• Water consumption creates water footprintThe water footprint is a concept to describe personal water consumption. Since fresh water makes up only a fraction of all water on Earth and there are limits to its renewal, the future challenge is to pay more attention to the consumption of water and keeping water clean, in other words, manage our water footprint.Meridien Bora Bora Waste water collection of 100 luxury straw hat cabins all along the blue lagoon is taken care by Evac’s vacuum drainage system. The system consists of 1 vacuum station and 50 sump and interface units.InraThe French Virus Research Center selected Evac’s vacuum drainage system for collection of infected waste because of the absolute air tightness of the Evac pipework. Any leakage from the piping system to the premises of the Virus Research Center would jeopardize the sterility of the research premises.As the Evac pipe work system is under a permanent vacuum, any leakage in the system is always directed inward. The system eliminates the waste from spilling outward onto the floor.SupermarketsThe Evac vacuum system enables remodeling of the existing floor plan. Closure time of the store during the refurbishment is greatly reduced as no underground condensate drainage lines are required. Based on these reasons major supermarkets across Europe, the US and worldwide have chosen the Evac vacuum drainage system.An average household in industrialized countries consumes 250 litres of water every day. We use water for drinking, cooking and washing. However, most of the water we consume is “hidden water”.Hidden water and prediction for water consumptionHidden water means the amount of water a product requires during its entire life cycle. For example, water for irrigation is hidden water. The global average for hidden water consumption is 3406 litres/person/day.In the past 100 years, the global water consumption grew by 750 percent. At the same time, the global population grew by 410 percent. The water consumption in households has grown by 2100 percent. According to the UN forecast, the global population will continue to grow until 2050, from the present 6.8 billion to over 9 billion, and will slowly start to decrease thereafter.7Health and HygieneEvac’s vacuum toilets are significantly cleaner than conventional toilets, which permit bacteria and odours to enter the atmosphere. The Evac toilets enhance both hygiene and personal comfort within washrooms by using up to 60 litres of air with each flush, removing viruses, bacteria and odours from the bowl. By encouraging the cycle of air, washrooms will stay ventilated and fresh.Every Evac vacuum system is a closed loop that is kept under a vacuum at all times, which makes it impossible for pests to live and breed in the drainage, and securely contains all and any waste. This is imperative – especially in facilities with a high risk of contamination such as hospitals, prisons and research facilities.Water Saving and Energy ConsumptionA building’s water consumption is dependent on a number of factors: the size, the type, the function, and the installed drainage system. The following examples concern a building with 100 toilets and an average of three flushes an hour per toilet.Special Low Flush Gravity ToiletsWater consumption: 6 litres/flush• 100 toilets x 3 flushes/hour x 6 litres/flush = 1800 litres/• hourEvac’s Vacuum ToiletsWater consumption: 1.2 litres/flush• 100 toilets x 3 flushes/hour x 1.2 litres/flush = 360 litres/• hourTotal amount of saved water: 1440 litres/hour 80%Evac’s vacuum system dramatically reduces water consumption by 80% per hour.Since Evac’s vacuum toilets are purely pneumatic, no electrical connections are required. The whole system is operated by a Vacuum Collection Unit, which creates and maintains the vacuum, and is the only part of the system that consumes energy.A vacuum toilet uses 60 litres of air per flush at an • operating pressure of -0.5 bar100 toilets x 3 flushes/hour x 60 litres/flush = 18,000 litres/• hour (at one atm)18,000 litres/hour • 18 cubic metres/hour18 cubic metres/hour x 2 (for operating at -0.5 bar) = 36m3 • cubic metresA 100 cubic metres/hour range vacuum pump is rated at • 2.2 kilowattsThe pump’s operating time is 21.6 minutes per hour, • consuming 0.792 kilowattsData collected from various projects give us an average power consumption of 1 kilowatt hour. The system’s design, operating conditions, control panel and discharge function of the Vacuum Collection Unit has been taken into account. If the system is used less frequently, the hourly power consumption will drop accordingly.8Evac OySinimäentie 1402630, EspooFinlandTelephone: +358 20 763 0200Telefax: +358 20 763 0222Email: evac.buildingfi@zmp-zodiac.comEvac E.U.R.L.35/37 Avenue du Gros Chêne Parc d’Activités des BellevuesBP 50098, EragnyF-95613 Cergy-Pontoise CedexFranceTelephone: +33 1 3421 9988Telefax: +33 1 3464 3900Email: evac.buildingfr@zmp-zodiac.comEvac North America Inc.1445 Huntwood DriveIL 61016-9560Cherry ValleyUSATelephone: +1 815 654 8300Telefax: +1 815 654 8306Email: evac.buildingus@zmp-zodiac.com www.evac.com 08/2010/500Evac representative