APPLICATION HOT WATER RECYCLE WATER SOURCE FILTERED WASTEWATER YEAR INSTALLED 2014 INDUSTRY COMMERCIAL LAUNDRY
INTRODUCTION & PROCESS DESCRIPTION
CAPDI © SOLUTION PROVEN RESULTS Voltea’s CapDI technology cost-effectively removes dissolved salts from recycled laundry water resulting not only in white linens and water savings, but also significantly reduces heating costs. Traditional desalination technologies require the water to be cooled before TDS removal, which means it must be reheated for laundering. This is expensive, time consuming, and now unnecessary. CapDI removes TDS at high laundering water temperatures and recovers up to 90% of the treated water. Voltea closely monitored the laundry facility installation for a period of 6 months. This laundry facility achieved significant cost savings and could double their daily throughput without exceeding daily discharge permit limits. This was attained because of the ability to utilize recycled water more effectively. The addition of CapDI to the laundry wastewater treatment system delivered TDS removal at laundering temperatures, high water recovery, and enabled efficient recycling of spent laundry water. Commercial laundries consume and discharge large volumes of water. Due to the nature of this water, many regulatory authorities enforce stringent water quality standards and regulate discharge volumes. As a result, commercial laundry operations are under ever increasing pressure to reduce water consumption and minimize discharge volumes, all while delivering whiter, brighter linens. It is generally accepted that TDS (Total Dissolved Solids) above 750 - 1,000 ppm causes dull linens; TDS includes iron, manganese, calcium, alkalinity, and other dissolved salts, all of which are known to cause linens to gray. Consequently, effective use of recycled laundry water has been limited by the inability to affordably and reliably remove TDS at high temperatures. Due to the local regulations, this specific site was limited to an 8 hour work shift due to discharge limits.
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