Maintenance of submersible pumps is complex due to the depth at which they are installed, which makes access difficult. Correct facility design to extend the time between failures and the monitoring of several parameters to determine the pumps’ performance during operation are therefore vital factors, as Miguel Ortiz from FACSA and Alejandro Palomo from Salinas y Perez report.
17 April 2012
Members' Content
A South African initiative to encourage load shifting prompted an in-depth review of pumping processes at the Tugela paper mill’s water supply plant. After a general overview of the project, the first part of this two-handed case study1 focused on the plant’s high-lift pumping station. In this concluding part, Graeme Harding from the Magnet Engineering Division considers flow control, and assesses the transfer and low-lift pumping stages, and plant piping and instrumentation, before presenting the final solution.
10 April 2012
Members' Content
When the fountains in the Trocadero Gardens near the Eiffel Tower in Paris needed extensive renovation work, it was not only a question of what equipment to choose but also how to get it through very restricted access routes. KSB's solution was to dismantle and then rebuild the machines powering the fountains in situ.
10 April 2012
Members' Content
Caprari’s recent announcement of a strategic alliance with French manufacturer Peme Gourdin to launch the new High Flow Line range demonstrates a double move. It is aimed at satisfying both the demand for pumps capable of conveying high water capacities and at supplying high-end engineered products to various demanding industrial markets. World Pumps talked to Dr Luca Pellegrini, about this alliance and why it is a milestone in the company’s strategic direction.
03 April 2012
Members' Content
World Pumps takes a look at the key themes covered by German water and sewage trade fair IFAT which in 2012 promises to be the biggest ever.
03 April 2012
Members' Content
In South Africa, a major initiative to encourage load shifting and reduce strain on the electricity grid prompted one paper mill to investigate the pumping processes at its water supply plant. In this detailed two-part case study, Graeme Harding from Magnet Engineering Division takes us through the investigative process leading to the final solution, which has yielded a 25% energy saving since implementation.
06 March 2012
Members' Content
The manufacturing of wafers for photovoltaic (PV) solar panels requires a precise process that puts production equipment to the test. Several of these processes involve highly abrasive slurries, which are a mixture of glycol and powdered silicon carbide. The challenge is to find equipment that can handle both wet and dry applications in a corrosive environment.
23 February 2012
Members' Content
The splitting off by ITT Corporation of some of its most well known brands to form Xylem, a company dedicated to the water and wastewater industry, did take some people by surprise. However, the move has proved to be a shrewd one and holds great promise for the future as Mike Kuchenbrod explained to World Pumps.
21 February 2012
Members' Content
The South and Central American markets have experienced tremendous growth over the last decade creating opportunities for domestic and international companies. A number of trade associations are emerging making the region attractive – not only for the oil & gas and mining companies – but also in water, wastewater, biofuels and other sectors.
07 February 2012
A water services provider in Kenya's coast province has installed a new set of vertical multistage pumps at its water treatment plant following a failure. Mawasco, based in Malindi, Kenya, procured a set of Poldap Dalgic Pump sets from Konya in Turkey as replacements. Shem Oirere tells the story.
31 January 2012
Here are the nominees for the 2012 Pump Industry Awards.
25 January 2012
When a US wastewater treatment plant in South Carolina saw lower flows than expected, due to a delayed housing project, the facility experienced repeated vapour lock resulting in higher operational and chemical costs. The manual dilution operation resulted in increased operational and chemical costs, so a solution was sought in Grundfos' digital dosing technology.
24 January 2012
Energy savings can be obtained in several ways, but before manufacturers turn to hydraulic optimisation of units or apply new electrical drives or powerful control systems, they should look at the dimensions of the pipelines and make sure they get the duty point specifications right. This can be done with the aid of web-based tools from Vogel Software.
24 January 2012
Bedford Pumps contributed to an extensive refurbishment of Ashton Avenue sewage pumping station, one of Wessex Water's largest and most critical facilities in the Bristol region. Included was the installation of three storm pumps and two dry-weather flow pumps, plus condition monitors, on time and under budget.
10 January 2012
As water companies reduce water pressure in the domestic mains to reduce leakages, tall buildings are becoming reliant on booster pumps to provide water at sufficient pressure to enable normal daily living. This has revealed a potential threat – hydraulic shock, says Gary Wheatley from Wilo (U.K.) Ltd.
29 November 2011
Increasingly, cities and low-lying areas are at risk of sewer overflow from extreme rainfall. Stormwater tanks can help reduce the impact of extreme climatic events by holding back excess stormwater and contaminants. This protects the environment and makes possible the intelligent management of stormwater flows, resulting in savings on infrastructure investments. Now Grundfos has developed a handbook informing engineers about tank design and optimisation.
18 October 2011
Tasked with replacing ageing pumps at a UK Advanced Water Treatment Works (AWTW), engineering, consulting and construction company Black & Veatch opted to install a number of peristaltic models from Watson-Marlow. Offering continuous, high pressure and quick release functionality, the new pumps have slotted comfortably into their high-tech surroundings, which is one of Thames Water's flagship process plants.
11 October 2011
To keep wastewater lifting stations operating at peak efficiency it is necessary that they remain clean. Caprari with more than 60 years in designing, manufacturing and installing pumping, mixing and aeration equipment, has contributed towards the creation of a ‘flushing system’. It includes a number of features that are designed to offer significant improvements.
16 September 2011
When the wastewater and effluent infrastructure of the historic city of Krakow in Poland was in urgent need of renewal and updating, the main objectives being to improve the treatment of sewage which eventually flows into the Baltic Sea. A number of KSB's sewage submersible pumps and mixers were used to fulfil this objective.
14 September 2011
Residents of Elbow Cay, Bahamas rely on reverse osmosis for most fresh water, often supplied by fixed displacement axial piston pumps for new and retrofit installations. One Danfoss unit recently attained 23,000 hours of use – 15,000 more than its guarantee and is still in excellent shape. World Pumps talks to James Graham and Gary Ford.
13 September 2011