Industries today rely on a continuous supply of high purity water to achieve their mission. The high purity water is often produced onsite, starting with raw water or a municipal supply and removing from it various impurities, including biologicals, gases, suspended solids, and, most commonly, dissolved solids. Reverse osmosis is often part of a complete treatment system that includes pre-pretreatment and sometimes post treatment polishing by ion exchange.
Our customers most frequently use reverse osmosis to prepare water for these applications:
Industries that rely on steam as a driving force for turbines, an energy source for heating, or product processing know that suspended and dissolved solids in a steam generator case scale and can lead to tube failure. Poor boiler feedwater quality increases energy consumption, reduces steam quality and purity, and can reduce both production rates and product quality. Including reverse osmosis systems in the boiler feedwater makeup circuit to replace or pretreat for ion exchange increases production reliability and significantly reduces operating and maintenance cost.
For microelectronics and pharmaceutical manufacturing, potable water supplied by a local municipality is not nearly pure enough. Their product specifications require water free of bacteria and organics, with dissolved solids levels that are 10,000 times lower than those found in potable drinking water. The first step in reducing the suspended solids levels is reverse osmosis where 98% of the influent water salts can be removed before additional treatment with advanced ion exchange or continuous deionization systems produce the ultrahigh purity water they need.
High quality water is a critical ingredient in the food and beverage processing industry. Not only is it the obvious foundation of the bottled water industry but it is also important in beer production, where high quality water is used in the proofing process for alcohol beverage production. Meat and poultry processing as well as fresh pack and processed food production also need high quality water requirements. RO product water can meet all these needs. In addition to the ability to reduce dissolved solids, reverse osmosis can also remove pollutants and microorganisms.
Water Reuse and Recycling
The assumption that an unlimited quantity of affordable raw water is available to industry is no longer valid. Manufacturers are looking for alternate water sources to assure operational reliability and reduce potable water consumption. Spent process streams and plant wastewater effluent are now considered as possible water supplies and reverse osmosis can be an important technology in reducing dissolved solids levels and enabling these water streams to be reused and recycled back into the plant.
Although the earth is covered primarily by water, much of this water has a high salt content and cannot be used for either potable consumption or industrial processing. However, in certain regions, the only available water source is either brackish or seawater. Reverse osmosis systems can reduce the dissolved solids level of brackish water (2,000-10,000 mg/l) and seawater (30,000-40,000 mg/l) to potable levels and further treatment can generate the higher purity waters needed for industry, medical care, and institutional use.
Temporary Mobile RO Systems for Industrial and Mining Waste Retention Ponds
A number of industries collect excess process water and rainwater contaminated by pollutants into catchment basins. During storm events these basins can be in danger of overflowing and creating an environmental impact by polluting nearby surface and groundwater. Portable reverse osmosis systems are used to reduce the volume of water in these basins, thereby allowing the facility to discharge clean unpolluted water while retaining the contaminants in the basin.
Spot Free Rinse
In parts manufacturing as well as building, vehicle, and aircraft maintenance, surface cleaning is an important practice. However if the rinse water used during the cleaning has hardness and the surface is allowed to air dry then white and gray mineral spots will be left. These spots are due to the high levels of calcium and magnesium salts present in even potable water. Their presence not only is visually unappealing but also can interfere with operation. Treatment of final rinse water using RO processes can remove the minerals that cause spotting to occur.