A European airport chose to reduce energy consumption and CO2 emissions at its air handling plant. This required the installation of energy efficient technology and processes. Following a full review of the airport's air handling system, pocket filters were chosen which have cut maintenance time, emissions and costs. 12 August 2010
A District created to promote public health decided to scrub off-gas odours from its Vallejo wastewater treatment plant. The two open aeration basins were targeted as part of the odour control upgrade. A retractable geomembrane cover was selected for the basins, which combines a gas-tight barrier with low life cost benefits. 12 August 2010
IFAT has developed into one of the world's leading trade fairs for water, sewage, waste and raw materials management. Due to popular demand, IFAT is switching to a two year cycle, beginning with an exhibition on 13-17 September at the Munich Trade Fair Centre, Germany. Filtration +Separation canvassed some exhibitors to find out what will be on display. 12 August 2010
Stephen Coulson, chief technical officer at P2i and inventor of its liquid repellent nano-coating technology, looks at how plasma processing is transforming filtration products. 12 August 2010
In the fourth of a series of articles, Graeme Pearce looks at the issues involved in the selection of pre-treatment in seawater reverse osmosis desalination applications. 11 August 2010
In the pharmaceutical industry it is essential to eliminate pyrogens from the manufacturing process, and in particular from the water production plants they require. Claudio Maini and Luca Zonarelli of Veolia Water Solutions & Technologies explain the background and the development of new systems to minimise the risks. 11 August 2010
This fourth article, in Ken Sutherland's series on the smaller end-use equipment application sectors, features the use of filtration equipment in the medical and healthcare sectors. These are vital to life and provide a major use for membrane media. 11 August 2010
Anthony Bennett investigates advances in air filtration technologies for industrial applications, including automotive, dust collection, gas turbine, and HVAC systems. 10 August 2010
Data from existing tests are of little use to HVAC system designers. Paolo Tronville of the Politecnico di Torino and Richard Rivers of EQS Inc. discuss a set of tests which could provide data for rational system design choices. 09 August 2010
A linen supply company has increased its wastewater recycling capacity by 67 per cent with a low cost screener retrofit. 22 July 2010
Researchers at Usak University in Turkey have investigated the effect of needling intensity and knitted reinforcement fabric on some mechanical properties of needle-punched nonwoven filters. Mehmet Emin Yüksekkaya reports on the findings. 21 July 2010
Dr. M. Shirato, Emeritus Professor at Nagoya University and Honorary President of the Filtration Society — Japan Association, reviews the history, current technology and future developments of automatic filter presses in Japan. 21 July 2010
The operating environment of much modern hydraulic equipment creates an increased risk of damage due to hydraulic fluid contamination. Advanced filtration technology allows this risk to be mitigated without reducing productivity. A view from Parker Hannifin's European Hydraulic Filtration and Fluid Condition Monitoring Division. 19 July 2010
The next in Ken Sutherland's series of articles, on the smaller end-use equipment application sectors, features the use of filtration equipment in the manufacture of machinery, including the production of transport equipment as well as equipment usage in the operation of transport systems. The sector is not actually small in volume terms, but is considered in this series of articles because of its use of only a relatively narrow range of equipment types. 13 July 2010
Anthony Bennett investigates the use of membrane technology in the fine chemicals industry – in the production of the chemicals themselves and also in the generation of process water and the treatment of effluent from chemical synthesis. 06 July 2010
Efficient management of water is critical for the future of irrigated agriculture as climate change and ongoing drought reduces the amount of available water. Goulburn-Murray Water and its alliance, FutureFlow, have built the world’s largest automated channel control network, replacing a 100-year-old method of irrigation delivery. 05 July 2010
Precoat filtration using a bulk handling system for diatomaceous earth has been introduced at a desalination plant in the USA as part of an improved pre-treatment process prior to reverse osmosis. 23 June 2010
The production of alumina from bauxite is a vital first step in the production of aluminium. Filtration and separation equipment plays a significant role in this process, in particularly challenging conditions. Trevor Sparks explains. 18 June 2010
In this article, Anthony Bennett investigates the application of small scale desalination technologies for remote commercial, industrial, military, naval, marine and offshore applications. He examines the thermal and membrane technologies available and the sizes of equipment employed from portable systems to larger containerized or skid/frame mounted plant. 15 June 2010
A growing demand for optimal efficiency in desalination means the use of energy recovery devices has become common practice. Not only is this economical, it reduces the carbon footprint in the face of ever increasing plant size. Jeremy Martin from Energy Recovery Inc explains how these benefits are achieved. 15 June 2010
Developers were required to provide a Chilean mine with its own drinking water supply, due to the constraints of the desert area. The successful pilot of a seawater membrane system led to a permanent solution which provides drinking water for the mining camp and process water for the filter units. 15 June 2010
Test methods and standards for evaluating the filter media for air filtration applications are now being formulated by the industry. Paolo Tronville of the Politecnico di Torino and Richard Rivers of EQS Inc. describe the current status of media testing in air filtration. 14 June 2010
Activated carbon is widely used as a sorbent media in purification and filtration methods. However, its traditional method of manufacture can be unfriendly to the environment through the release of greenhouse gases. KC Perera of Eurocarb Products describes a new project in Sri Lanka that is securing supplies of activated carbon for the future while dramatically reducing the impact of its manufacture on the environment. 09 April 2010
In the third of a series of articles, Graeme Pearce looks at the issues involved in the selection of pre-treatment in seawater reverse osmosis desalination applications. 09 April 2010
Winemaking by-products are a low-cost and rich source of valuable phenolic compounds with widely recognised health benefits. Membrane separation processes are ideal for recovering these compounds, ensuring high quality of the extracts produced. As a result of the gentle nature of membrane processing, the final products can justify the label ‘natural’, which is essential for most food and cosmetic markets. Carla Brazinha explains. 08 April 2010
In the second of his series of articles on the smaller end-use equipment application sectors, Ken Sutherland reviews the equipment marketplace for the processing and production of human and animal foodstuffs, and in the production of beverages, both soft and alcoholic. 08 April 2010
Storm flows during wet weather can cause major problems in wastewater plants. A team put together by Veolia Water Solutions and Technologies describe how the BioACTIFLO process can provide biological treatment with high-rate clarification in such circumstances. 08 April 2010
Biofouling is a major and very expensive problem for the water industry. Biofilm resulting from the growth of microorganisms on reverse osmosis and ultrafiltration membranes is a serious issue in desalination and water treatment plants, requiring a variety of pretreatment strategies to minimise the problem. Tom Berman of the Kinneret Limnological Laboratory describes the latest thinking on the subject. 07 April 2010
A novel biocidal method for disinfecting drinking water has been developed by HaloSource Incorporated. Jeff Williams and Michael Bridges describe the development, effectiveness and applications for HaloPure Br. 07 April 2010
Reverse osmosis technology has been used to recover valuable water from the cooling towers of the Datong Power Plant in Shanxi, China for use as a source of boiler make-up water. 06 April 2010
In the first of a series of articles, Graeme Pearce looks at the issues involved in the selection of pre-treatment technology in seawater reverse osmosis applications. 09 March 2010
More than 300,000 people in a remote district of Sri Lanka are today enjoying quality drinking water for the first time due to a turnkey project undertaken by Outotec for Sri Lanka's National Water Supply and Drainage Board. 03 March 2010
A waste management company has created a high-grade fuel oil made from waste oil, using a self-cleaning filter that reduces labour by 75%, maintenance by 50%, in 60% less production space. 03 March 2010
Numerically optimised cyclones and recirculation systems have been shown to be highly efficient for the capture of fine particles, such as those occurring in the production of active pharmaceutical and food ingredients. Romualdo Salcedo and Júlio Paiva describe some of the recent developments in this area. 02 March 2010
In the second of a series of articles, Graeme Pearce looks at the issues involved in the selection of pre-treatment technology in seawater reverse osmosis applications. 01 March 2010
Filtration and separation processes are widely employed in the automotive industry. Anthony Bennett reviews some of these processes used in engine manufacture, vehicle production and car assembly. 26 February 2010
In the first of a series of articles, Ken Sutherland looks at one of the minor end-use sectors, which, although important industries in their own right, actually have relatively small shares of the filtration and other separation equipment market. In the present case, the review is of the production of minerals, other than fuel materials, and the making of metals, both ferrous and non-ferrous. 26 February 2010
Water is not normally associated in many people's minds with the production of oil and gas from underground reservoirs. Consequently, with no energy potential or sales value, is its separation, treatment and disposal important? David Robinson discusses issues surrounding the handling of water in the production of oil and gas. 24 February 2010
In his series of articles, Ken Sutherland covers new developments in a number of broad classes of filtration and separation. 24 February 2010
The quality of oil extracted from the Peng Lai oil field in China was such that a complete new centrifuge had to be designed and created to successfully process it. GEA stepped up to the challenge for installation in one of the world's largest FPSO vessels. 19 February 2010
The installation of self-cleaning filters from Russell Finex helped clean debris from mixers before liquid fuel was pumped into tankers, resulting in increased productivity and a safer working environment for operators. The filters have also significantly improved the final quality of the liquid fuel product. 19 February 2010
US-based UV disinfection specialist Aquionics met with an unusual request when it was asked to help design a mobile UV disinfection system with in-house engineering staff for a Native American tribal reservation in rural Montana, USA. 18 February 2010
A UK sheep pelt tannery required a DAF sludge dewateringsystem that could cut costs while dealing effectively withvery wet, fatty animal waste. GEA installed a system featuring a decanter which reduced sludge by 90% and made a positive environmental impact. 12 February 2010
An IChemE-award winning ion exchange system which removes nitrate from groundwater with minimum use for chemicals, reduced power consumption and waste volumes has been installed by ACWA Services at a number of UK water treatment works. 12 February 2010
When a major steel plant on the east coast of Sweden installed a new rolling mill its managers decided to recycle 100% of both the process water and the slag resulting from the cooling process. Installation of a DynaSand filtration plant helped them reach this goal. 12 February 2010
A novel underground solution to locating the Besos Wastewater Treatment plant in Barcelona, Spain required additional measures to deal with offensive odours. 12 February 2010
Chivas Brothers' Glenallachie Distillery near Aberlour in North East Scotland has installed a new wastewater treatment facility. Commissioned in late 2008, the distillery chose a system from Wehrle Environmental that comprises of an advanced membrane bioreactor treatment system incorporating cross-flow ultrafiltration technology. 12 February 2010
A Netherlands-based chemicals manufacturer has installed a water treatment system combining ultrasonic microbiological control and corrosion inhibitors, and has reaped environmental and economic benefits. 11 February 2010
A city in the USA needed to replace its aging water softening technology. After considering the options, a new reverse osmosis system was selected. 11 February 2010
The filtration stage in the manufacture of sodium hypochlorite bleach can be severely hampered by the build-up of gas. The US chemical manufacturer Olin Corporation used specialist degassing valves to solve the problem and improve the effectiveness of the filter cartridges. 11 February 2010
Counting and classifying foreign particulate materials on filters is essential in pharmaceutical manufacturing. Traditional techniques are lengthy and difficult. Ulf Willén of Malvern Instruments describes an automated method for improved statistical sampling. 01 February 2010
A transition to integrated single-use technologies is helping to adapt to the challenges of bringing biotechnology drugs to market. Christine Valle explains the approach being taken at Millipore. 26 January 2010
Filter integrity testing is critically important in biopharmaceutical production processes. However, when large numbers of filters need to be tested daily, it can be a time-consuming and costly business. Dr. Jens Meyer of Sartorius Stedim Biotech describes how this situation can be improved by parallel testing. 19 January 2010
In minerals processing, choosing a suitable concentrate launder design in separation by flotation requires a number of issues to be considered. Dr Rob Coleman of Outotec Pty Ltd explains. 12 January 2010
Despite the tight credit markets and challenging global economy, 2008 saw further consolidation within the filtration and separation sector. Listed below are the mergers and acquisitions that took place during 2008. 18 December 2009
How can disc filtration make an impact in continuous wastewater treatment? Miguel Gutierrez of Siemens Water Technologies explains the fundamentals of disc filtration and how it can provide an economical and sustainable solution for municipal tertiary treatment applications. 24 November 2009
Wastewater reuse is becoming increasingly important in many parts of the world. Anthony Bennett describes the role of regulators in this area and highlights how advances in filtration technology are driving the market. 17 November 2009
The integration of nanofibres into production processes is increasing as more businesses strive for improved profitability and performance in end filter products. The key to their successful introduction is the identification of a suitable product and clear objectives at the outset of the product design phase. 09 October 2009
Improvements in RO membrane elements have provided a threefold increase in the amount of treated water per element while reducing energy costs in desalination and water purification projects around the world. Currently, desalination plants with Dow Water & Process Solutions technology enable more than 218 million gallons of freshwater to be produced every day. 08 October 2009
To match the series of articles appearing through 2009 in Filtration + Separation covering separation equipment, Ken Sutherland looks at recent developments in the key component of filtration equipment, namely the various types of filter media. His examination includes ceramics, nonwovens and polymeric membranes and their place in future industry. 08 October 2009
Mark Hadley, senior process engineer at Severn Trent Services, looks at how rapid gravity filters have developed to meet the demands for efficient solids removal at the pre-treatment stage of desalination plants. 25 September 2009
Until recently, Scottish based manufacturer Enfilter used a third party to pleat and glue the longitudinal seams of its liquid and gas filter cartridges. The company began using Sonobond SeamMaster™ High Profile Ultrasonic Bonder in its filtration assembly and reported a faster and more efficient assembly process. 17 September 2009
Efficient recovery of water and waste is something that membrane technology excels at. In this short article, we take a look at some new uses of membranes developed by a Dutch firm that specialises in innovative recovery applications. 11 September 2009
Pennaire Filtration has recently supplied an advanced filtration solution involving an automated multi-chamber reverse jet bag filter to a metal powder production plant in the United Kingdom. 08 September 2009
Effective air filtration is highly desirable in hospitals, in particular in areas with critical air quality requirements, such as childrens' wards and Cancer Research Centres. Hospitals are often located in congested urban areas which poses the problem of preventing smoke, diesel and other hydrocarbon emissions from entering the hospital environment. Mycelx undertook studies at a hospital in Georgia, USA to check the effectiveness of its air filtration systems. 08 September 2009
This article, by John Wertz and Immo Schneiders of Hollingsworth & Vose, looks at the advantages of a new and advanced nanofibre coating technology for filtration media compared to the electrospinning process, and introduces a next-generation nanofibre technology specifically designed to enhance filtration media. 07 September 2009
Is it possible to test air cleaning or disinfection devices used in air conditioning systems? We look at a potential testing system, and see if it is possible to compare different devices and determine optimum operating conditions. 24 August 2009
The next in Ken Sutherland's series of articles, covering progress in a number of broad classes of filtration and other separation equipment types, looks at recent developments in air and other gas filtration, from the smallest to the largest applications. 24 August 2009
In the oil and gas industry, specifically the filtration and separation of produced water and sand management generated by oil production, engineering simulation can enhance the operational performance and effectiveness of equipment. In this article, Ahmad H. Haidari of ANSYS, Inc. explains how it can assist with extraction. 24 August 2009
This article, from a team at Agrilectric, looks at the filtration properties of rice hull ash, including several examples of its successful use as a filter medium with water and wastewater. 21 August 2009
The US Army have deployed a new generation of water purification technology during their military operations: an ultrafiltration pretreatment for portable water purification unit. In this article, we take a look at the technology and how it works. 20 August 2009
Ian Dunn explains the importance of using thickening technologies – especially lime - during the desalination process. Using several examples from Australia, he examines the importance of this technology for urban desalination provision. 15 August 2009
In May 2009 the spa town of Baden Baden, Germany, played host to the European Desalination Society’s Conference and Exhibition on Desalination for the Environment - Clean Water and Energy. Discussions focussed on the problems that many countries face in providing water for their populations, industries and agriculture. Bryan Orchard reports. 13 August 2009
Working with Water spoke to some of the exhibitors who will be attending the US water event, about their new products and what they hope to gain from the water quality exhibition and conference. 04 August 2009
Ned Galka and Abhishek Saxena of Lydall Filtration examine the growing impact of membranes in the high efficiency air filtration sector – and see what future developments may be in store. 30 July 2009
Anthony Bennett looks at the major sources of indoor air quality problems, reviews the regulatory strategies being adopted to mitigate these problems, and examines the technical approaches to abate unacceptable IAQ, particularly those involving filtration. 23 July 2009
Is it possible to test air cleaning or disinfection devices used in air conditioning systems? We look at a potential air testing system, and see if it is possible to compare different devices and determine optimum operating conditions for the air cleaning devices. 30 June 2009
In the oil and gas industry, specifically the filtration and separation of produced water and sand management generated by oil production, engineering simulation can enhance the operational performance and effectiveness of equipment. In this article, Ahmad H. Haidari of ANSYS, Inc. explains how it can assist with extraction. 25 June 2009
Ken Sutherland looks at the importance of filters in the production of crude oil, both on- and offshore. 05 June 2009
Continuing his series of articles covering new developments in a number of broad classes of filtration and other separation equipment types, Ken Sutherland looks now at recent developments in centrifuges, operating both by sedimentation and filtration. 22 May 2009
Tightened emission requirements on diesel engines mean the use of fuel injection equipment that is vulnerable to contaminants. Mandatory fuel sulphur reduction and biodiesel inclusion induce chronic field failures of fuel-water separators that are not yet modelled in industry test standards. This article, by Christine Stanfel of Ahlstrom, considers the hurdles to diesel engine protection in today’s fuels. 07 May 2009
ACHEMA is the world forum for the process industries. The city of Frankfurt hosts ACHEMA – the largest international meeting for the process industries, encompassing everything from oil and gas processing, through power generation, base chemicals and pharmaceuticals, to biotechnology. 08 April 2009
Nearly a mile long and 40 metres below ground, a key section of Belfast’s deepest tunnel was completed earlier this year, boosting Northern Ireland Water’s efforts to tackle river pollution and reduce flooding. 27 March 2009
The challenges of changing regulations and standards can mean difficult situations for water companies. As new discharge limits and controls come into force, traditional treatments can become redundant. Severn Trent Services explain how they have been using filtration technology to meet the challenges. 27 March 2009
In the quest for efficient and economical water use and land footprint in water production, membrane bioreactors (MBR) have been leading the way. In this article, we look at how the membranes in an MBR work, and some recent developments in this sector of the water industry. 27 March 2009
The subject of butterfly valve technology and its suitability for desalination plants raises a number of issues in respect of providing adequate protection against corrosion. Bryan Orchard visited the KSB Amri Water Valve Division Competence Centre in France to learn more about their technologies. 27 March 2009
There is an increasing requirement for sustainable treatment options to deal with the various types of emissions to the environment, including the bad smells occasionally generated by wastewater treatment processes. This article takes a look at a technology that can reduce and eradicate odour emissions. 27 March 2009
There is no doubt that efficient filtration is essential when dealing with industrial wastewater issues. In this article, Cat Pumps explain why the successful creation of a filter cake is the result of an effective filter cloth, and how regular washing can assist with ensuring this happens. 26 March 2009
Membrane Bioreactors (MBR) with submerged membrane modules are being adopted in many areas of the globe as the next generation of biological water treatment technology. We take a look at some of KMS’s recent projects. 26 March 2009
The town of Gillingham, England has responded to growing population and increased treatment standards by installing four of Nordic Water’s Dynasand moving sand bed filters. The installation in its present configuration is designed to meet anticipated needs till 2013 – but with additional media and designed capacity for a potential fifth unit, it is expected to meet Gillingham’s needs until the year 2020. 26 March 2009
Water pollution – especially as a result of oil production and storage – is an unfortunate fact of life. Finding a solution is not as obvious, especially if it has to fit around an existing infrastructure. We take a look at a development by BPC, which looks at bioremediation as a solution. 26 March 2009
As we are all aware, water is becoming a scarce and expensive commodity. The beverage and food industries, looking to increase the recycling of their process water to keep costs low, are turning towards membrane bioreactors for water treatment. Alfa Laval's Detlef Ahrens explains how it works. 25 March 2009
The need to remove pathogens from potable water supplies is long recognised. In this article the characteristics of pathogen groups are outlined alongside an overview of the approaches used to remove or otherwise deactivate pathogens from water. The effectiveness of these approaches and any significant drawbacks are also considered. 23 March 2009
After millennia of evolution, water filtration technologies face many challenges, from increasing demand to new contaminants. But perhaps the biggest challenge is reducing the environmental footprint of water treatment systems. Jim Lauria of Amiad Filtration Systems discusses the past, present and future of water filtration. 23 March 2009
There are different designs for underdrains – important when removing suspended solids from potable water. David Shepherd of Severn Trent Services Ltd takes us through some recent developments. 23 March 2009
The membrane bioreactor has become an important processing tool in the treatment of waste liquids. Ken Sutherland looks at its technology and applications. 23 March 2009
Ken Sutherland considers the various ways — such as reverse osmosis and nanofiltration — to filter fresh and waste waters, discusses the purposes for that filtration, and looks at the equipment used in the various methods. 23 March 2009
Can old tyres be an effective filter medium? Yue-Feng Xie, Bryon A. Killian and Andrew S. Gaul look at using crumb rubber from waste tyres when filtering wastewater. 23 March 2009
Ken Sutherland looks at the characteristics of depth filtration, at the range of equipment used to implement the filtration process, and at how it is used, with a special look at biotechnological applications. 23 March 2009
The Water Corporation of Western Australia turned on the country's largest seawater reverse osmosis (SWRO) plant back in November 2006, starting the delivery of a planned 45 gigalitres of drinking water a year into the Perth public supply system. Bryan Orchard looks at the technologies involved. 20 March 2009
Hal Alper and H. Parthasarathy from Mycelx Technologies Corporation look at the problem of ‘oily mists' – secondary aerosols found in a range of industries that can significantly decrease air quality and which require specialised filter technology to be removed. 18 March 2009
As membranes become more common in every aspect of the filtration industry, Ken Sutherland examines the bulk chemicals and petrochemicals industrial sector to see how membrane separation processes are involved. 18 March 2009
Ralf Krüger from inge watertechnologies describes the growing popularity of ultrafiltration as pre-treatment in seawater desalination and looks at its successful application at an Italian power plant that required an efficient and low-maintenance ultrafiltration solution. 18 March 2009
A relatively recent development in membrane processes, Ken Sutherland looks at the rapidly expanding field of nanofiltration, its characteristics and its applications. 18 March 2009
The Harnaschpolder wastewater treatment plant, based in the Netherlands and run by Veolia, is a great example of a modern filtration system with a look to the future. Filtration+Separation visited the plant to find out how it operates. 18 March 2009
A team from the Belgian company Bekaert explain the development of an enhanced surface filter medium based on short metal fibres, specifically designed for applications in the food and beverage and chemical and pharmaceutical industries. 18 March 2009
The production processes for beverages demand that the final result is a drink that meets the expectations of customers, both visually and gastronomically. Ulrich Braeutigam of Sartorius explains how the last step in this process could be the most important, and how a new product could help. 18 March 2009
Until recently the nuclear industry in the United States and parts of Western Europe has been dormant or in decline. At the same time, nuclear capacity has been expanding in Eastern Europe and Asia. We examine the part that filtration technology can play in the nuclear industry, and the future of this market. 18 March 2009
Lon Edelman of Kimberley-Clark believes that filter media is no longer just a commodity, and that its true value can be determined by life cycle costing. This article looks at the evolution of filter media in the air sector, with a particular focus on North America. 18 March 2009
Dr Graham Rideal, founder and senior scientist of Whitehouse Scientific, explains the importance of a correctly calibrated filter when involved in oil production. As prices per barrel continue to increase, every drop does count – what role can a filter play in getting more oil for the production dollar? 18 March 2009
Peter Rose of Alfa Laval takes a look at one of the growth areas of biopharmaceutical filtration and separation: the harvesting of mammalian cells to produce new drugs and medicines. The article examines the origines of the technology used in this sector of the industry, and considers recent developments. 18 March 2009
There is increasing inter-dependency between new filtration technologies and renewable energy. In this article, Dr Mike Coffey looks at the growing use of renewable energy in systems such as wastewater treatment and biogas combustion, and integrating sustainable power into energy intensive reverse osmosis systems. 18 March 2009
The growing number of biogas plants makes it increasingly difficult to return the fermentation residue substrates to green spaces or arable land. We take a look at a way of treating the fermentation residue substrates so that they can be discharged and re-used. 18 March 2009
Engineers set out to design a cartridge filter that could work efficiently to provide compressed air to international quality standards. The design involved looking at critical areas, such as air flow management, filtration media selection and construction and the efficient removal of coalesced liquid. 04 March 2009
A long with black coal, natural gas and nuclear power, one of the most important sources of energy is brown coal. But one of its by-products, gypsum, has to be dealt with in an environmentally friendly way before it can be re-used. That's where GKD's filter belts and meshes come in. 04 March 2009
A Mexican power plant was in need of a system that could effectively and efficiently treat its secondary wastewater stream. The plant turned to a manufacturer of water purification and chemical recovery equipment for a new system which could find a more economical and efficient method of tertiary treatment, primary demineralisation, and polishing. 04 March 2009
Renovated in 2005, a sewage plant in Sweden invested to make operations more efficient and reliable. A specialist offering solutions in machines and electric motored processes provided a range of equipment that could ensure the plant's flow consistency, reduction in energy consumption and low maintenance. 04 March 2009
Lyco Manufacturing was called upon to create a screening system to deal with the troublesome organic contaminants that are released as a result of turkey processing and can lead to companies having to pay additional discharge fees. 04 March 2009
A major food company was experiencing screen blockage problems when filtering rapeseed oil for biodiesel production. It decided to purchase a Self-Cleaning Filter from separation specialists Russell Finex. By installing the filter the company hoped for an increase in productivity and improvement in product quality. 03 March 2009
Despite extreme drought conditions and a rapidly growing population, the Western Australia city of Perth is getting water to its residents due to a groundbreaking desalination plant which uses low-pressure membranes and renewable energy to achieve its results. 03 March 2009
Ultra-violet disinfection and a rehaul of filters was key to solving the problems of a water treatment facility in Poughkeepsie, USA, that needed to upgrade its existing treatment technology to meet new US disinfection standards. 03 March 2009
Producing fuel ethanol can be expensive, but with the right technology a company can reduce costs and save energy. A designer and manufacturer of gas separations systems created a membrane separation technology as an alternative to distillation and molecular sieve dewatering solutions. The company decided to put it to the test at an ethanol manufacturing plant. 03 March 2009
The elimination of total organic solids (TOC) from feedwater is vital to ensure the long term performance of a high-pressure boiler. At a power plant in Thailand, a ‘two pronged’ application of UV technology from Hanovia reduced TOC by 68% and helped the plant on the way to meeting the country’s growing electricity demand. 03 March 2009
Crossflow filtration has been used for many years in food and beverage applications. Now French filtration specialists SIVA have improved the technology, ensuring that this method of filtration can meet oenophiles’ high standards for wine quality – and save energy in the process. 03 March 2009
The city of Atlanta is growing rapidly, which has led to increasing waste gases being emitted from wastewater plants. Following vociferous complaints from residents living near these plants, clean air specialist Purafil was called upon to install temporary and permanent contamination control units to remove the unpleasant odours. 03 March 2009
Seawater pre-treatment is an integral part of every seawater reverse osmosis (SWRO) desalination plant, used to remove particulates, debris, micro-organisms, suspended solids and silt from the source seawater. But with conventional and membrane filtration to choose from, which is right for you? Nicolay Voutchkov compares the two options. 09 February 2009
Nikolay Voutchkov takes us through one of California’s most advanced desalination projects – the Carlsbad seawater desalination plant – and explains the associated climate action plan in order to keep the plant as carbon neutral as possible. 04 October 2008
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