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Water Treatment : Total Dissolved Solids

What are Total Dissolved Solids?

The expression, "total dissolved solids" (TDS), refers to the total amount of all inorganic and organic substances – including minerals, salts, metals, cations or anions – that are dispersed within a volume of water. TDS concentrations are equal to the sum of positively charged ions (cations) and negatively charged ions (anions) in the water. Sources for TDS include agricultural run-off, urban run-off, industrial wastewater, sewage, and natural sources such as leaves, silt, plankton, and rocks. Piping or plumbing may also release metals into the water.

What are Drinking Water Effects of Total Dissolved Solids?

While TDS is not considered a primary pollutant, high TDS levels typically indicate hard water and may lead to scale buildup in pipes, reduced efficiency of water filters, hot water heaters, etc., and aesthetic problems such as a bitter or salty taste. TDS is the sum of the mineral salts in water and if too high can result in objectionable taste, cloudy ice, interference with the flavor of foods and beverages and scale left behind in cookware. Generally speaking, the lower the TDS the more acceptable the drinking water. Reverse Osmosis (RO) process has proven itself as the most practical and cost effective method of correcting problems caused by high TDS. High TDS content in water will exhibit a salty or brackish taste.

The United States Environmental Protection Agency (EPA) recommends treatment when TDS concentrations exceed 500 mg/L, or 500 parts per million (ppm). The TDS concentration is considered a Secondary Drinking Water Standard, which means that it is not a health hazard. However, further testing may be warranted, as water with a high TDS concentration may indicate elevated levels of ions that do pose a health concern, such as aluminum, arsenic, copper, lead, nitrate and others.


How does high TDS Effect Commercial Business ?

High levels of total dissolved solids can adversely industrial applications requiring the use of water such as cooling tower operations; boiler feed water, food and beverage industries, and electronics manufacturers. High levels of chloride and sulfate will accelerate corrosion of metals.

We have treated residential and commercial total dissolved solids from as little as 750ppm to brackish 10,000ppm to high 35,000ppm sea water sources.

Residential TDS Filtration Systems:

Under the sink reverse osmosis water systems

Whole house reverse osmosis water filters

Commercial Total Dissolved Solids Water Filter Systems:

Commercial reverse osmosis  

 
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