pH and Total Solids Control for Ready Mixed & Precast Concrete Manufacturers
Fortrans Model 5000B pH control and monitoring system installed at a ready mixed concrete plant. System does not include the large CO2 tank.
Ready Mix and Precast concrete producers generate high pH industrial process wastewater that has high levels of dissolved and suspended solids.
Fortrans Inc. uses a patented Di-Jet gas injector to efficiently mix low cost carbon dioxide gas to lower pH in process water or wastewater where conventional diffusers or injectors and aspirators may be subject to failure caused by solids build up in the devices. The Dif-Jet™ Injector is more efficient and uses less carbon dioxide than spargers or diffusers.
Fortrans’ Dif-Jet™ gas injectors allow use of safe, efficient, carbon dioxide gas. Treating high pH and high solids wastewater with carbon dioxide also costs less than dosing with mineral acids such as sulfuric or hydrochloric acid. Sulfuric acid may actually increase total suspended solids requiring a separate filter before discharge.
A huge benefit of treatment with carbon dioxide is that the carbonic acid produced by carbon dioxide will react with the calcium hydroxide (from cement) and produce calcium carbonate which is not soluble in water and will precipitate out of the water. The TSS of treated water is typically 7 mgl to 15 mg/l well below the EPA standard of 30 mg/l for discharge. Treated water can replace fresh water at truck wash racks, batching of fresh concrete or irrigation. Treated water may also be returned to municipal wastewater systems.
Carbon dioxide is less expensive than granular pH reducers such as such as sodium bisulfate or citric acid.
Lowering pH with carbon dioxide is inherently safer for personnel by eliminating handling of hazardous materials. Reporting requirements on hazardous materials required by the EPA and local agencies are greatly reduced or eliminated. Specialized storage and spill containment equipment is not necessary for carbon dioxide storage.
Carbon dioxide is not corrosive to sensitive equipment such as circuit boards in PLC’s and other electronic controls. Dif-jet gas Injectors are incorporated into self-contained pH control systems complete with control instrumentation and full enclosures or skid mounted for interior applications. All systems are basically “plug and play” requiring only a supply of carbon dioxide gas and a regulator.
Meeting Your Concrete Mixing Truck Cleaning Needs
For over a decade, Fortrans has provided the concrete industry and other businesses with first-rate, cost-effective products all designed to save you time, energy and expense.
Easy Way To Clean Ready Mix Washout Pits And Settling Basins
Clean in place and eliminate pumping of clear water from the basins or pits.
- Broadcast 1 lb of Slurry Sep non-pH sensitive flocculent per 5000 gallons of water in the pit or basin.
- Use bucket loader to mix into water. Run loader into pit 3 times – agitate water as much as possible
- After 10 minutes, all slurry will settle to the bottom and will not remix.
- Use submersible mud pump or above ground diaphragm pump with 2” suction hose with wand strapped to hose and suction settled slurry from bottom of pit. Pump slurry to main washout pit or mixer truck.
- Transport slurry to drying area. Slurry Sep prevents leaching of heavy metals into the groundwater promoting environmentally safe disposal of dried slurry.
All of our products are available to companies in the United States and Canada. If you have questions, or if you’d like to place an order, fill out the form to your right or call us at 866-958-7267.
May 20, 2013
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Read what our customers are saying
"Lane Construction Corporation uses technology that provides solutions to uphold our commitment to Environmental stewardship. This is why we use Fortrans, a proven leader in the construction wastewater industry. Through our experience, Fortrans provides equipment that is sound in construction, operation, and maintenance. This is further complemented by good customer relations and technical support for a reasonable price."
Chris D. Monahan, Lane Construction
“Carolina Sunrock has been very pleased with our Fortrans pH Control systems. We have three units and their ease of operation and the exceptional Customer Service the Company provides is greatly appreciated. We couldn’t be happier and highly recommend these units!”
Tony L. Sample, Carolina Sunrock LLC