20.03.2014
The Caribbean island of Aruba situated just off the coast of Venezuela has a semi-arid climate, caused by the north-westerly trade winds dropping most of their rain on the Windward Islands to the north-east. The desalination plant is situated in Balashi, the site of old gold mill ruins and is located inland of Aruba’s capital, Oranjestad. Following the desalination process the water passes through five UV systems before being transported to a number of large storage tanks situated at elevated locations around the island. Two of the storage tanks situated around the island are also fitted with UV systems, which provide an additional disinfection step prior to distribution. Commenting on the installations, Project Manager Mr Ruiz says, “Chlorine was originally considered as an alternative to UV but was rejected after concerns over costs and safety.
Aruba is currently served by two wastewater treatment plants (WWTPs), one at Parkietenbos on the west coast and another Zeewijk on the east of the island. Both WWTPs use UV as a final treatment step prior to discharge, following various filtration and treatment steps including grit and fat removal, screening, SBR (sequencing batch reactor) biological treatment and tertiary disc-type filtration. The quality of the final effluent from both sites is so good that some of the wastewater is used to irrigate two golf courses on the island.
As the innovator in ultraviolet water treatment and disinfection Aquionics, along with its sister Halma companies in the United Kingdom and the Netherlands, has led the way in UV technology since 1924. Aquionics' UV systems provide non-chemical disinfection of water, air and surfaces in a diverse range of applications. The urban houses are connected with the government sewage plants and they may not need the home septic system or sewage treatment plant for waste disposal but still big buildings are now opting for their exclusive waste water plant in order to conserve water and use it effectively for other washing and flushing needs. The main application of the sewage treatment system is to clean the waste water disposed while carrying out various household and sanitary tasks.
The sewage or waste water treatment plants are also being installed in the buildings located in the urban areas.
The process of sewage treatment in the sewage treatment system is the three staged process where every stage has its significance.
The installation is done by experts and usually it is done 10 meters away from the residential localities.
The above facts are the general facts that hold true for almost all sewage treatment systems but if you are installing the new system in your building or home then check for the crucial details beforehand to get positive results. In most municipalities, wastewater treatment plants typically account for the highest energy usage.


A popular tourist destination because of its dry, sunny climate, the island has experienced rapid growth in recent years, putting severe stress on its water supply system.
Seven are used for disinfecting drinking water prior to distribution and a further two are used for treating wastewater prior to discharge. One of these UV-fitted storage tanks is situated in the harbor and supplies cruise ships with UV treated drinking water. The Parkietenbos WWTP processes wastewater brought in by septic tank trucks from the whole of the island, while the Zeewijk WWTP treats wastewater from San Nicolas, Aruba’s second largest city, located in the south of the island. The systems are also fully validated in accordance with the USEPA UV Disinfection Guidance Manual (UVDGM).
The company’s products employ both conventional UV lamps and breakthrough UV-C LEDs for disinfection, chemical, or contaminant destruction.
Halma makes products for hazard detection and life protection and is a market leader in specialist electronic, safety and environmental technologies. If you have planned to install this sewage treatment system in your home or building then the below given vital facts may help you know the waste water treatment plant better. The sewage that is the combination of solid and liquid waste would easily get decomposed when allowed to stand in the stationary position for long time. The first stage cleans the sewage of any visible wastes while the second stage treats the sewage against the biological wastes. It is recommended that no buildings, car parking, or any other construction is made around the treatment plant. The cleaning process can be carried out by pumping the storage tank and chemical treatment of the pipelines if required.
This project works with the wastewater industry (trade allies and plant managers) to determine specific process improvements that also reduce overall energy usage.
As there are virtually no naturally occurring sources of fresh water on the island, it relies exclusively on the world’s second largest desalination plant to supply its population with potable water. Occupying a space equivalent to half the length of a football or soccer field, the plant consists of plate heat exchangers in titanium installed in a vessel of considerable size. UV technology from Aquionics, manufactured by its Dutch sister company Berson UV-techniek, was selected for the project.
In addition, one system is used by the Dr Horatio Hospital to treat incoming drinking water as a precaution against Legionella.


In particular, a lot of businesses are interested in using UV-treated wastewater for hosing down their buildings.
From its standard products for low flows, to the most cost effective technologies for large flow and special applications, Aquionics delivers the best systems and the best solutions. The water that comes out of this system after treatment is clean enough to enter the natural sources of water. The regular inspection is also mandatory if you want the treatment plant to work efficiently. To that goal we provide marketing to trade allies and WWT facilities to increase awareness of the program and foster greater buy-in. We have authorized warranty and service repair stations located throughout the United States.
It was constructed in three 67 foot (20 meter) sections in Germany and shipped to Aruba, where it was assembled.
The company was chosen because it is at the forefront of UV technology for municipal applications globally. This water cannot be used for drinking as it needs to undergo natural cleaning before becoming potable. The last stage cleans the water to the maximum possible extent and then the treated water is disposed to the natural water sources.
We work with clients to estimate savings and incentive amounts while our Evaluation, Measurement, and Verification contractor ensures savings attribution to the program. The UV systems are controlled by Aquionics’ ECtronic+ and UVtronic+ microprocessors – allowing the units to be linked to control systems. In such cases, the water used in shower area and kitchen is taken to local treatment plant installed in the building and the treated water is again supplied to the flush tanks in the toilet. We also provide technical support to individual facilities to compare various energy efficiency alternatives and then to help the staff or poject engineers complete the DCEO application.
The flushed water is then taken to the government sewage treatment plant from where it is disposed in the natural water sources.



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