Toray UF membrane modules were piloted over a fifteen-week period to help service the growing demand for clean water in southwest North Dakota. The outcome, as part of the Southwest Pipeline Project (SWPP), would be construction of the Oliver-Mercer-North Dunn (OMND) Water Treatment Plant.
Many manufacturing processes, analytical measurements, and other industrial processes that involve aqueous solutions are adversely affected by bubbles in the fluid stream. 3M™ Liqui-Cel™ SP Series Membrane Contactors provide a very simple, cost effective solution to help eliminate bubbles from such processes.
ShenLan Environment Inc. located in Shanghai, China uses 3M™ Liqui-Cel™ Membrane Contactors in their boiler feed water treatment systems. These systems realize lower operating costs with the added benefit of reducing the chemicals added to the boiler feed water.
Dissolved gases like NH3, H2S or NOx in waste water lead to contamination in the sewage system and high treatment costs for municipal waste water treatment plants.
Electrodeionization (EDI) is a widely used water treatment process. EDI technology is an electrochemical process that uses ion selective membranes and an electrical current to continuously remove ions from water. The process uses ion exchange resin to remove the ions from the feed stream, producing pure water.
Walnut Valley Water District spans a 29 square mile area in semi‐arid southern California about 20 miles east of Los Angeles. Like many water districts planning for growth amid periodic droughts is challenging and compounded by the need to deliver high quality water throughout the district of over 100,000 people and more than 26,000 service connections. Read the full case study to learn how Walnut Valley aggressively pursued operational strategies in their water storage tanks to limit nitrification risk.
The Francis L. Hatch water filtration plant is in the coastal town in York county Maine and has an average capacity of 2.6 MGD. This is a surface water plant that utilizes hydrated or “slaked” lime (calcium hydroxide) to maintain the pH level around 7.0. For over 25 years, the district has used two of the UGSI Chemical Feed model 32‐055 Feeders to mix dry hydrated lime with water to create a lime slurry solution that can then be added to the finished water treatment.
As engineers come under increasing pressure to reduce maintenance and operating costs, inefficient combination double-pass reverse osmosis and electrodeionization (RO/EDI) water treatment systems have begun to lose popularity as a means of providing ultra-pure water. Integrated membrane systems (IMS), on the other hand, combine multiple membrane-based water treatment processes into a single system. In this case study, find out how a heat and power plant in Northeast China lowered capital costs and energy use by adopting an IMS to replace its conventional water treatment system.
Small batches and multiple products in the same plant — these are the market demands to which more and more manufacturers need to adjust. The answer is based on the "Lego principle."
A potable water plant in Eastern Angelina County, Texas, serves over 2,000 rural customers.
A chemical company which specializes in Clean-In-Place (CIP) systems, contacted Mazzei to discuss the use of ozone as an alternative to peracetic acid sanitation or heat sterilization at their customers’ plants.
Need to speed up your settling process? Brentwood tube settlers can help you do that while also improving overall plant efficiency for potable water and wastewater applications. By expanding settling capacity, Brentwood tube settlers increase flow rates and improve effluent water quality. They also save you money on operating costs by reducing the frequency of filter backwashing.
Don’t pay double for steel. Go blue!
The AltaPac™ Ultrafiltration Package System is designed as an economical ultrafiltration membrane treatment system that is both easy to use and simple to install. This versatile system can process flows up to 100 gpm on surface waters and 180 gpm on ground waters.
Technology pilot demonstrations can be beneficial to wastewater treatment plants by providing a snapshot of essential process operating conditions and allowing the customer to interact with the technology and factory personnel.
Whether used in the pharmaceutical, electronics, or other industries, ultrapure water systems rely on ultraviolet energy to produce and maintain the highest possible standard of water quality. UltraDynamics® has been providing UV systems for the treatment of ultrapure water for over 20 years. Our series 8102-HIE (standard intensity) and 8102-HO (High Output) offers the flexibility demanded by these industries. Our equipment for ultrapure water applications uses electropolished 316 stainless steel chambers (both inside and out), with removable flanged heads for easy disassembly. All interior welds are ground smooth, passivated, and polished.
The Type 578 Lug Butterfly Valve has several beneficial design features unique to the Georg Fischer butterfly valve line. The double eccentric operating principle has an off-center disc and shaft that disengages the disk from the seal with only 3 degrees of rotation.
The H2Zero Backwash Recycle Systems configuration can be designed for arsenic adsorption or iron & manganese oxidation & filtration systems. Whether backwashing is infrequent (every 45-60 days in the case of adsorption for "fluffing" the media beds or performed one or more times per week using AdEdge can customize a solution to fit your need.
Want to shift the process of changing module suppliers from complicated and time-consuming to easily-managed and economical?
Water quality is getting a lot more scrutiny these days. And that’s a good thing says Russ Swerdfeger, Global Director of Memcor Product Management with Evoqua. Alongside his colleague Daryl Weatherup, Director of Marketing with Evoqua, Swerdfeger recently discussed the future of drinking water and the key issues and concerns facing the water industry right now with Water Talk.
Over the past two years, no groundwater issue has perhaps received as much community focus and attention as polyfluoroalkyl and perfluoroalkyl substances like PFOA and PFOS, often referred to as perflourinated compounds (PFCs). The U.S. EPA issued a health advisory, limiting the amount of these compounds to 70 parts/trillion which kicked off a nationwide evaluation of local water sources.
With 29 locations, 1,600 employees and research facilities in Japan, Italy and the United States, DeNora is one of the largest disinfection and filtration companies in the world. As Gary Lohse, Regional Sales Manager for De Nora, explains in this Water Online Radio interview, the acquisition of the former Severn Trent manufacturing division coupled with De Nora’s product innovation strength is driving enhancements to some of the most respected brands in the water industry.
In this Water Online Radio exclusive interview, Fred Wiesler, Global Director of Sales for the QUA Group, discusses some of the company’s key products, including the EnviQ that uses a flat sheet PVDF membrane, and has a .04-micron pore size. It provides ultrafiltration quality water, with the strength of a PVDF flat sheet membrane.
PPG Industries has spent the last four years developing and field testing a membrane-based filtration technology that has arrived in the market as both a flat sheet and a spiral on filter cartridge.
Born out of UCLA and the California Inner Systems Institute, Water Planet is focused on revolutionizing water reuse through next generation membrane technology. As Erik Hoek, CEO of Water Planet, explains in this Water Online Radio interview, the company has two core technologies.
RWL Water and Emefcy have merged to create Fluence Corporation, bringing together breakthrough, energy-saving technologies and proven delivery platforms that optimize treatment solutions for the complete water cycle. Fluence products address all segments of the water value chain, including desalination, reuse, wastewater treatment, freshwater treatment, and waste-to-energy — making it one of the world’s most comprehensive distributed water services firms. Visit us at WEFTEC booth #7135.
The Amiad AMF2 automatic self-cleaning filter series provides polishing filtration using microfiber cassettes with filtration degrees from 20 to 2 micron. Appropriate for fine filtration applications where disposable cartridges would typically be used, NF/RO pre-filtration and iron or manganese removal.
The Amiad Arkal Spin Klin automatic self-cleaning filters utilize disc elements, offered with filtration degrees from 400 to 20 micron. The innovative disc technology offers superior removal of algae and organics in municipal, industrial and irrigation applications, and the polymeric construction makes these filters ideal for use in seawater or corrosive environments.
Veolia Water Technologies offers comprehensive water and wastewater solutions for industrial and municipal customers. With unique technologies and process expertise, Veolia specializes in engineering, design, and project management, construction and execution.
AdEdge Technologies, Inc specializes in the development and supply of innovative technologies, adsorbent-based products, and systems that remove contaminants from process or aqueous steams. We are an organization based on solid deliverable, scalable, scientifically proven technology and experience for the removal of arsenic and other contaminants from water
Since 1969, Aqua-Aerobic Systems, Inc. has been a leader in the design and manufacture of wastewater treatment equipment and systems for both municipal and industrial markets, worldwide.
Water Treatment Equipment |Wastewater Treatment Equipment |Sludge Management Equipment
Amiad Water Systems is a world leader in water filtration equipment and treatment solutions.
For over 50 years Amiad has been committed to developing a comprehensive line of robust water filtration equipment and integrated treatment packages for water applications in the industrial, municipal (potable and wastewater), oil and gas, commercial HVAC, ballast water, agriculture, irrigation, and aquaculture markets. Our filters are in use in over 70 countries around the world. Every Amiad system is built for efficiency, effectiveness and reliability and is backed by our commitment to excellence and dedication to customer service.
Ovivo brings together more than 200 years of collected experience, process expertise and proven technologies; but that doesn’t mean that we’re complacent. Over past centuries of growth, development and refinement we have been guided by the principle of delivering value to our clients. Our equipment and technologies already have a reputation for long-term durability and reliability, offering decades of use and leading to lasting relationships with key customers.
Manufacture of filter housings and elements|Pleated membrane and high efficiency cartridges|Bag housings and bags
Filtronics has manufactured water and waste water treatment systems for industrial and municipal applications since 1974
Leopold Universal Type S and SL Underdrain|Leopold IMS Cap|Leopold DAF - Dissolved Air Flotation|Leopold Clari-Trac (CT2) Submerged Sludge Collector|Leopold Clari-Vac Floating Sludge Collector|Leopold Engineered Filter Media Products|Leopold Instruments And Controls| Leopold Ultrafiltration Membrane Systems
De Nora Water Technologies is a leading supplier of water and wastewater treatment solutions. We provide our clients with some of the industry’s brightest minds, advanced technologies, and quality products to provide you with truly efficient, cost-effective solutions to your water and wastewater challenges
Evoqua Water Technologies, formerly Siemens Water Technologies, is a leader in water and wastewater treatment products, systems and services for industrial and municipal customers. We offer a wide range of proven product brands and advanced water and wastewater treatment technologies, mobile and emergency water supply solutions and service contract options.
3M Liqui-Cel Membrane Contactors are used for degassing liquids. They are most commonly used for O2 removal from water and CO2 removal from water, but they are also capable of controlling a variety of other dissolved gasses as well, such as Nitrogen.
WRT provides effective processes for removing radium, uranium and other contaminants from water. Our complete package of services includes process equipment, proprietary treatment media, safe exchange of media, and proper handling and disposal of used media
QUA® is a leading-edge developer and manufacturer of advanced membrane products, which includes fractional electrodeionization (FEDI) and hollow fiber ultrafiltration module (Q-SEP). These are engineered with innovative technologies, which are used to treat challenging waters. QUA is leveraging its deep roots in R&D, the expertise of staff that is highly experienced in water treatment technologies, and its significant financial resources to become a global technology leader in the development of products for water and wastewater treatment applications.
Water treatment filtration involves the removal of suspended particles from water by passing the water through a filtration medium. As the water passes through the filter, floc, minerals, microorganisms and other impurities get stuck in the filter and are removed from the filtered water. Passage can be blocked by physical obstruction, biological action, adsorption, absorption or a combination of ways. Filtration is usually the final step in the solids removal process during water treatment which typically begins with coagulation and advances through flocculation and sedimentation.
Unfiltered or turbid water is difficult to disinfect because microorganisms growing on suspended particles are often harder to kill than when they are separated from the particles. Turbidity can also cause unwanted taste and odor issues in the potable water supply. Drinking water filtration is also used to remove microorganisms that are resistant to traditional methods of disinfection such as chlorination. By requiring a low turbidity in finished water, water treatment plants are ensuring that few or no microorganisms such as Giardia are present in finished drinking water.
There are three typical methods of clean water filtration used during the water treatment process. Conventional filtration follows coagulation, flocculation and sedimentation and precedes disinfection. Direct Filtration follows coagulation and flocculation when there is no sedimentation step. The final method called In-Line Filtration takes place without flocculation or sedimentation. A coagulant chemical is added to the water just before filtration and coagulation occurs in the filter.
There are many types of filter media being used in today’s water treatment industry.
