Innovative Technology Helps Wastewater Treatment Plants Lower Costs: When a world-class casino, hotel and spa resort in California wanted to build an efficient and easy to operate wastewater treatment plant, it chose an innovative technology that could handle high-strength wastewater from the hotel and the large weekly variations in flows and loadings.  The technology, a combination of sequencing batch reactor and solids reducing technologies, provided an ideal solution for this resort, which has saved on solids handling and energy costs since the new plant was started up.

Membranes for Reuse - Industrial Applications using Microfiltration as RO Pretreatment: As water shortage problems become more widespread, with traditional water supplies either dwindling in supply and/or quality and water costs increasing, communities and business alike are seeking alternative, sustainable water sources to meet their increasing needs.

Water Reuse and Conservation in the CPI: The petroleum and petrochemical industries are one of the largest users of water for a variety of purposes, including steam generation, cooling water and utility water.  For larger facilities, the need for fresh water can be as high as 10,000 gallons per minute.  A significant amount of this water is returned to the environment in various water and wastewater streams that are treated to meet environmental discharge standards.  In areas where renewable water resources are limited or where there are significant environmental concerns or costs associated with wastewater discharges, the reuse of wastewater may be a valid option to conserve valuable water resources and reduce overall water treatment costs.

Zero Liquid Discharge System Maximizes Recycling Success: Declining water reserves and high costs make water a valuable resource in Mexico where it is considered a key manufacturing resource.  International Truck and Engine’s truck manufacturing facility in Escobedo, Nuevo Leon, Mexico, reduced its fresh water demands and eliminated wastewater discharges into local waterways by installing the zero liquid discharge (ZLD) system, which produces more than 119,000 gallons per day (gpd) for water reuse. 

Filtration Techniques: Changes Over Time Make Disc Filters a Good Option for Treatment: Over the last decade, disc filters have been increasingly used in North America for municipal tertiary treatment, recycle/reuse, retrofit of conventional filters, and process water filtration. Elsewhere, they are also used for pretreatment of ultrafiltration (UF) membranes, product recovery, and industrial reuse. The difference in woven filtration media and flow pattern makes each type of disc filter unique to each application.

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