June 19, 2019: Clean TeQ Holdings Limited (ASX/TSX:CLQ; OTCQX:CTEQF) is pleased to announce the successful completion of its hardness removal demonstration project in Inner Mongolia for Jiutai New Material.
The aim of the project was to confirm, at demonstration scale, the cost effectiveness of Clean TeQ’s continuous ion exchange process to remove hardness from high saline brines to increase the recovery rates of subsequent membrane systems and thus improve water recoveries for recycling and reduce the volume of polluting waste brine.
Membrane systems (including reverse osmosis and nanofiltration) are abundant throughout the world for water treatment and water recovery. One common challenge, especially for high water recovery systems, is the presence of water hardness (ie high mineral content) that causes membranes to foul, which increases costs and limits water recovery. The Jutai project confirmed that the Clean TeQ Continuous Ionic Filtration (CIF®) system cost effectively removes hardness entirely, allowing membranes to run at close to maximum capacity without fouling.
During the demonstration project Clean TeQ’s mobile demonstration unit treated reverse osmosis (RO) filtration brine continuously for two weeks, consistently removing hardness (Calcium and Magnesium) down to zero to allow the subsequent second step RO to significantly increase water recovery.
The demonstration program treated wastewater from a large coal-to-chemical refinery, producing DME (Dimethyl Ether) owned by Jiutai located about 100 km from Hohhot, China. The process requires large volumes of industrial grade water, putting a strain on sources of water supply in this water scarce region. The demonstration program confirmed that increasing water recovery by adopting Clean TeQ’s CIF® system could substantially reduce the plant’s net water use.
Willem Vriesendorp, General Manager of Clean TeQ’s Water Division, commented, “The results from this project convincingly demonstrate our ability to remove hardness from brines at low cost, allowing substantial improvement in the efficiency of existing or new membrane systems. Clean TeQ has commenced discussions with Jiutai over potential commercial scale application of the CIF® technology at Jiutai’s planned new water treatment facilities. The market for this application is very large, as hundreds of factories throughout China have implemented complex membrane systems over the past decade, and many are facing challenges with fouling or are looking to improve the operations of these systems.”
Successful completion of this campaign provides valuable demonstration of yet another application for the Clean TeQ water technology in addition to the commercial scale plants currently nearing completion in Australia, Oman and DRC. Over the coming months, the Company plans to expand this marketing and technology demonstration campaign by deploying the mobile CIF® unit to other facilities in China which have similar issues as Jiutai with a view to generating additional sales.
Clean TeQ Continuous Ionic Filtration (CIF®) Mobile Demonstration Plant