Water / Wastewater Treatment
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Many New Products from WEDECO & LOWARA at Wasser Berlin Innovations dominate this year’s ITT presence at Wasser Berlin. The company is exhibiting on two booths in the areas Pumps & Water treatment as well as Analysis.
On a common booth in hall 4.2, number 404, the brands WEDECO, LOWARA and LEOPOLD are showing well-engineered UV, ozone, and filtration systems, high-efficient pumps, borehole pumps, booster sets as well as many new products. The absolute highlight of the brand WEDECO is a new developed hydraulically perfected UV system presented the first time.
With these high-performance systems for disinfection of drinking water at limited space, WEDECO is completing its UV portfolio focused on highest efficiency. Additionally, WEDECO is presenting ECORAY® installations.
, a new generation of low pressure high-intensity UV lamps which promise - in connection with unique services - operation costs savings of up to 20 % at existing
Parties interested in disinfection of waste water acc. to EC bathing water directive do have the unique chance to visit the new WEDECO UV system at the Ruhleben wastewater treatment plant in Berlin. For more information, visit
wwww.wedeco.com
Besides the new 10” borehole pump, series Z10, one of the LOWARA highlights is the new vertical multistage pump e-SV™ series, which is easy to install and economical to maintain, enabling lower operational and lifecycle costs.
The new e-SV™ pumps also have a number of design innovations that allow easy installation and significantly reduce maintenance time. The “O” ring seal is designed to allow easy disassembly of the outer sleeve, and the mechanical seal can be replaced without removing the motor. The new hydraulic design provides superior NPSHr levels; additionally, the all-stainless steel construction and NSF certification allow the e-SV pump to meet municipalities’ requirements for pure water while providing superior corrosion resistance. For more information, visit
www.lowara.com.
Reader Reply Card No 45
Ozone/Biofiltration Process Improves Tap Water Quality
HydroGroup (Germany) has built a new water work for the Romanian city Jimbolia (round 13,000 inhabitants). Since the middle of last year the inhabitants have been enjoying significantly better drinking water. Prior to the new plant being commissioned, untreated well water disinfected only with chlorine was fed into the network.
The reduced, low-oxygen water indicates an increased content of ammonia, hydrogen sulphide, iron, manganese, TOC/DOC and in some cases arsenic. The existing wells are poorly sealed and in need of renovation, so that the regular occurrence of coliform germs is more the rule than the exception. The technology for treating this raw water mix was difficult and the budget of the city limited. The engineers of the HydroGroup/Hydro-Elektrik GmbH have solved this problem with a special treatment concept.
A two-phase pre-ventilation with atomisation for the removal of hydrogen sulphide as well as an oxidation stage with ozone for oxidation
and disinfection with a subsequent biological filtration stage was defined for the treatment process based on these water parameters. Disinfection at the end of the plant is carried out with chlorine (as required in Romania).
The hydrotechnics system was mainly divided into two stainless-steel raw water tanks with a capacity of 100 m³ each, a three-line filter system with a treatment capacity of up to 65 m³/h each and two stainless-steel pure water tanks with a capacity of 570 m³ each.
The contract for the turn-key production of the entire plant was awarded to the Romanian company HES from Timisoara together with HydroGroup in Ravensburg, Germany, as a sub-contractor. Here HydroGroup was responsible for the project planning of the plant and for the delivery of all hydraulic and electrical components.
The independent, family-controlled HydroGroup is a leader particulary in oxidative ozone processes, multi-layer filtration and ozone biofiltration processes.
Reader Reply Card No 46
The National Oceanography Centre, in Southampton, England is the integrated collaboration between the Southampton-based part of the Natural Environment Research Council’s National Oceanography Centre and the University of Southampton’s School of Ocean and Earth Science, at the Waterfront Campus in the docks.
New Filter Press Launched
In May 2010 FILTRATEC (Germany) was able to launch a new mobile filter press. This is the completely restored Press No. 20, a mobile membrane filter press with an output chamber volume of 1.3 m³. Even during the last economic crises FILTRATEC has pushed forward its way of innovation and investments for the ongoing modernisation of the engaged machinery. “Our customers require modern and well developed equipment at the state of the art. Therefore this investment was the absolutely right decision, although the economic circumstances were difficult”, Gerd Brückerhoff, technical directing manager of FILTRATEC, is convinced.
By constructing the new plant completely new ideas have been implemented. At the first time the filter press itself is not
placed in the middle of the trailer but moved to one side. For this reason a new trailer with an “intelligent” chassis was necessary to compensate the uneven weight distribution with the help of a modern air suspension. In the result the operators benefit from a relevant increase of the ease of movement at the operating-side of the filter press.
“With this filter press we set a new standard regarding safety and ergonomics at work within the mobile sector”, Dr. Dorothee Yzermann, responsible for quality, health & safety and environmental protection, is pleased about the new plant.
The new filter press is constructed for the super-mobile operations and carries the basis equipment, e. g. feeding pump, filtrate pump, forklift for the filter cake as well as flexible pipes on board. The customers benefit from the fast installation and reduced transportation costs. Therefore this plant is well prepared for missions far away from the home base. Following this the first destination is located abroad.
Reader Reply Card No 47
One of the world’s top five oceanographic research institutions, NOCS is home to some 520 research scientists, lecturing support and seagoing staff as well as over 700 undergraduate and postgraduate students.
NOCS has taken advantage of its dockside location to help reduce energy consumption by means of a unique seawater cooling system (SWC). The cooling system – which is the only one of its kind in the UK – utilises seawater during the winter months to indirectly cool the building via a heat exchanger. The Centre has several laboratories and cold stores that require cooling even in winter.
The SWC uses raw seawater taken from the dock. A Bollfilter 6.18 automatic self cleaning filter has been fitted prior to the heat exchanger. This operates continually to remove marine detritus, such as seaweed, from the water and helps maintain the efficiency of the system. Although the filter is designed to operate with minimal maintenance, Bollfilter provided on-site training for NOCS’s engineering staff to allow in-house adjustment and cleaning if necessary.
Candice Snelling, NOCS Environment & Energy Advisor noted
that “The system will reduce annual electricity demand by approximately 5% per year, saving an estimated 117 tonnes in carbon dioxide emissions a year. It also helps maintain a comfortable environment for our staff and students.”
Reader Reply Card No 48
Automatic Filter Installed at National Oceanography Centre
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www.pollutionsolutions-online.com • February / March 2011
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