This presentation discusses beneficial ways to reuse the concentrate from inland desalination facilities. It covers the actual byproducts of the process, the possible beneficial uses as well as chemicals that can be derived from the concentrate and the product and industries that may be served. Covered in more detail are examples on dust control, r...

The San Antonio Water System (SAWS) is investigating the treatment of brackish water desalination to augment its water portfolio. Because off the stringent pilot testing requirements required in Texas a thorough pilot test must be conducted with no shutdowns for more than 24 hours. Because issues are bound to come up in pilot testing a list of less...

San Antonio, along with many parts of Texas is experiencing double digit growth rates every 10 years. San Antonio Water System (SAWS) must be able to provide adequate water supplies in order to meet this growth. SAWS, currently gets the majority of their drinking water from the Edwards Aquifer, but water levels are decreasing, resulting in limitati...

In order to diversify their water supplies, SAWS has inaugurated a brackish desalination project to supply over 10 MGD initially to later be expanded to 25 MGD of treated potable water to the City of San Antonio. The first phase will have thirteen production wells completed into the lower Wilcox Sands at depths from 1,200 to 1,800 feet. The brackis...

The paper describes the pilot testing for San Antonio Water System?s (SAWS) Brackish Groundwater Desalination Program. The primary goals in the pilot testing effort were to obtain a TCEQ capacity rating and approval of the use of membranes from three manufacturers for the full scale facility and to evaluate certain pre-membrane processes. However, ...

This presentation provides insight on the San Antonio Water System (SAWS) project including facility planning and programming considerations, as well as a review of the proposed treatment process design. It includes information on the source water quality and proposed pretreatment and the unique approach proposed for the 3-stage RO treatment proce...

This paper presents the effort of the San Antonio Water System to meet their water supply needs. SAWS has implemented a Brackish Groundwater Desalination Program consisting of a reverse osmosis (RO) treatment facility utilizing groundwater from the Wilcox Aquifer and moving forward in the construction of a facility....

This paper presents the capitol cost for a phased expansion for the San Antonio Water Systems ( SAWS) program to integrate 30 million gallons per day of desalinated brackish groundwater into their overall water supply strategy. The Brackish Groundwater Desalination (BGD) program is anticipated to be constructed in three phases. Phase one will del...

Reverse osmosis (RO) permeate is aggressive, corrosive since it is soft, low alkalinity water with slightly acidic pH. Unless properly post-treated, finished water from RO facilities can cause corrosion to downstream fixtures and piping including the distribution system. Post-treatment includes chemical addition to adjust water quality. Blending a ...

San Antonio, along with many parts of Texas is experiencing double digit growth rates every 10 years. San Antonio Water System (SAWS) must be able to provide adequate water supplies in order to meet this growth. SAWS, currently, gets the majority of their drinking water from the Edwards Aquifer, but water levels are decreasing, resulting in limitat...

At its proposed buildout capacity of 30 MGD, the SAWS BGD project will be the largest municipal RO treatment facility in the state of Texas and one of the largest in-land potable desalination facilities in the United States. This is the only municipal RO treatment plant in Texas that uses a three-stage RO system with an overall feed water recovery ...