When considering reverse osmosis (RO) for water treatment, there are several things that should be taken into account. One of the most important things to consider is the quality of the water to be treated. RO is widely used to remove harmful inorganic contaminants; however, due to the limitations and higher operating cost, pretreatment of the water may be necessary. For example, hardness minerals are common in groundwater, and at high levels, pretreating with a softener is often recommended.
Environmental World Products focuses on component distribution, sourcing and new product development for commercial and industrial water treatment applications. Its product line includes RO system components, such as membrane housings, filter housings, bag housings, filter cartridges, couplings, control valves, flowmeters, solenoid valves, needle valves, controllers/monitors and pressure gauges.
The Complete RO Screen was developed with input from membrane manufacturers and treatment professionals. This package tests for most factors that can reduce the life of an RO membrane. Due to the nature of RO produced water, the testing was designed to provide lower detection levels. This test package is also beneficial for other applications that require pure water. New and improved compact packaging will reduce shipping costs.
SWI industrial-sized seawater RO systems have capacities ranging from 8,000 to 500,000 gpd. They feature duplex stainless steel multistage high-pressure pumps, FRP membrane housings, 8-in. TFC membranes, a non-corrosive prefilter and an advanced PLC-based control panel with touch screen, all mounted on a powder-coated steel frame that supports all instruments, piping and valves. Custom-made systems are available.
A wide range of research and development is being conducted to solve the challenges of providing clean water, with a significant emphasis on drinking water. The research focus has included advanced membrane technology; changing water chemistry to suit the remediation technology of choice; and media modification for increased selectivity, activity and capacity.
The purpose of this study is to focus on sorptive media modification for improved performance.
Treatment media advancements through application of nano-science
Today, beverage production facilities make a wide range of products, including carbonated soft drinks, energy drinks, juices, teas and purified drinking water. The number one ingredient in all of these products is water. Naturally, the quality of the water, as well as the operation of the water treatment system, are key to the quality and profitability of the facility.
Ultra-low-energy RO membranes help beverage facilities save energy and costs
Axeon CRO Reverse Osmosis Systems feature a sleek, ultra-compact design manufactured for residential applications and for feedwaters up to 1,000 total dissolved solids (TDS). The systems utilize a single-cartridge design, which allows for high-flow membrane performance. The large-diameter tubing of the CRO systems provides a 30% faster flow rate from the faucet. The unique flow path of these systems can reduce water waste by 50%, resulting in more water to the tank and less water down the drain.
Fractional electrodeionization and ultrafiltration membranes featured at booth #1150
QUA, a developer of advanced membrane products for water and wastewater treatment applications, will showcase two high performance membrane products – FEDI fractional electrodionization and Q-SEP hollow-fiber ultrafiltration (UF) modules – at booth #1150 at WQA Aquatech USA 2012.
R2 and M2-Series RO systems are engineered and manufactured for commercial and light industrial applications and for feed waters up to 10,000 TDS. These high-efficiency systems use low-energy membrane elements that deliver high quality water at low operating pressures. This in turn makes AXEON R2 and M2-Series the first low-energy brackish water systems in the marketplace.
American Water and Drexel University will partner for study
American Water Works Co. Inc. announced that it received a grant from the WateReuse Research Foundation to conduct a joint research project with Drexel University to measure and reduce biological fouling on membrane filters in desalination applications. The project is titled, "Application of the Bioluminescent Saltwater Assimilable Organic Carbon (AOC) Test as a Tool for Identifying and Reducing Reverse-Osmosis (RO) Membrane Fouling in Desalination."