Water / Wastewater Treatment Purification Plant to the World’s Most Spectacular Aquarium
ELGA Process Water (UK), a Veolia Water Solutions & Technologies company, has supplied a second MidiRO reverse osmosis system to The Deep, in Hull. The Deep is a state of the art aquarium that combines education, conservation and research and is home to over 3,500 freshwater and sea fish including spectacular sharks and rays.
The welfare of the fish is of paramount importance and water treatment is critical. Ben Jones, The Deep’s Senior Aquarist, explains: “Fish excrete high levels of ammonia. The water is continuously circulated through a biological treatment plant that converts the ammonia into nitrate but we have to control the nitrate concentration by discharging some of the water to waste and replacing it with make-up water.” And this is where the reverse osmosis system comes in. Make-up water is taken from the mains supply, pre-treated by a Selectron low salt usage softener before passing through the MidiRO’s low pressure reverse osmosis membrane which removes over 95% of the dissolved salts whilst minimising energy consumption and thus helping to keep operating costs low. The Deep can then re-mineralise the purified water under controlled conditions to give the precise chemical constituents for their freshwater or seawater aquaria. As a bonus, the reverse osmosis treated water is pure enough to be used in The Deep’s laboratories for glassware washing and reagent preparation.
The new compact treatment plant serves The Deep’s quarantine facility, where sick fish can be isolated and treated. “We decided to install a dedicated treatment system for the isolation tank,” says Ben. “We were very satisfied with the ELGA Process Water unit on the main aquaria so it was logical to use the same technology, and it means that both plants are covered by a single AQUAservice service contract.”
Reader Reply Card No 36
Largest Water Upgrade In Europe Completes
The largest water enhancement project in Europe worth €60m has been completed benefiting around 900,000 residents in Warsaw, Poland. Global consultancy, WYG(UK) was appointed as contract engineers on the new water improvement plant by the Central Water Management Administration in Warsaw.
The new plant will provide the area with modernised technological lines equipped with the latest water processing technology, benefiting over half of the Warsaw residents located in the central and southern part of the city in addition to residents of Pruszkow, Piastów, Piaseczno, Lesznowola, Stare Babice, Raszyn and Michałowice.
Andrzej Dziurdzik, Managing Director of WYG Poland said: “We are a team of over 2,000 professional consultants providing technical excellence to support the world’s built environment and future global developments in a sustainable manner with this WYG is well positioned to be working on a project of this scale.
“The project did have its complexities with the various technologies applied and due to its location being in the heart of the city within the National Heritage protection facility. This required the highest standards and hand- on expertise while the project was undertaken.”
The upgrade has improved the quality of water by 50 per cent with the new process that has been introduced of intermediate ozonising and water filtration process based on activated carbon and the decrease in the level of chlorine dioxide used to disinfect water to over 50 per cent. The other immediate benefits of the project are stable deliveries, and increasing water supply to up to 200,000 cubic metres per day.
Andrzej Dziurdzik continued: “The new treatment process introduced is very modern and a high-end concept as it includes improvements to the treatment in both treatment lines which are constituted by more effective aeration to improve removal of iron, manganese and ammonium nitrogen. This concept involves ozonation and activated carbon processes.”
Arkadiusz Małecki, Project Manager, Central Water Management Administration said: “I am pleased that the work on the new water improvement plant is now complete. WYG is a reliable and knowledgeable company to work with and the quality of work has been produced to a high standard.
“The new plant is seeing many improvements already across the board from control, analysis and monitoring equipment, rehabilitation of clean water tanks, to improvement of the infiltration intakes and modernisation and expansion of rapid filters.”
Over 60 per cent of the new water improvement plant was funded by the European Union with the Municipal Water Supply and Wastewater Treatment Company of the Capital City of Warsaw making up the other 38 per cent.
Reader Reply Card No 37
WASSER BERLIN
INTERNATIONAL Trade Fair and Congress Water and Wastewater
02–05 May 2011
Highlights:
Trade Convention of the Water Industry
Messe Berlin GmbH · Messedamm 22 · 14055 Berlin · Germany Tel. +49(0)30/3038-2148 · Fax +49(0)30/3038-2079
www.wasser-berlin.de ·
wasser@messe-berlin.de
Reader Reply Card No 38
www.pollutionsolutions-online.com • February / March 2011
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