Last week, WQP, Water & Wastes Digest (W&WD), and Storm Water Solutions (SWS) editors traveled to Houston to speak with water...
New system combines benefits of RO system and water softener without using salt
Pentair Inc. today unveiled its new Hybrid Deionization (Hybrid DI) system with CrossCharge technology, the first electronic water purification system that is practical for residential applications. Hybrid DI systems using CrossCharge technology will be the first to offer consumers the benefits of a reverse osmosis (RO) system as well as the benefits of a water softener without requiring salt.
The CrossCharge technology was developed through a partnership with Dutch firm Voltea, which has licensed the technology to Pentair in residential and light commercial applications for point-of-entry (POE) products. The new technology uses capacitive electrodes to remove hardness and purify water without using salt. Purification occurs as untreated water flows through the cell, where ions are drawn through the membranes and absorbed in the charged electrodes, producing high-quality treated water. The electrodes automatically regenerate when the system reverses polarity, which drives the ions out of the electrodes and flushes them from the stack core.
This technology is driven by an advanced micro-controller developed by Pentair and uses an array of sensors to monitor and manage all system and water quality parameters in real time. The technology continuously assesses the inlet and treated water quality, controls power supplied to the stack, and adjusts operating cycles and system flows to continuously optimize performance.
“Our business is providing clean, safe water for all, and we strive to manufacture products that are kind to the environment. Our Hybrid DI system achieves just that,” said Alok Maskara, president of Pentair’s residential filtration business. “Since it treats water without salt, there is no net increase in discharged total dissolved solids (TDS). It also produces 90% less wastewater than a conventional whole house RO system.”
The system is expected to become available to consumers in 2012.