News | July 5, 2018

De Nora Develops Innovative Solution To Address Public Safety Concerns In Hong Kong


Lands order for packaged disinfection systems at 10 Water Treatment PlantsincludesDE NORA CECHLO®-OSCG disinfection and adaptation to Capital Controls® technology

De Nora, a leading designer of safe, innovative, and sustainable water disinfection and oxidation, filtration and electrochlorination solutions, will supply water disinfection systems forten water treatment plants to the Water Supplies Department of Hong Kong S.A.R. The packaged systems feature CECHLO® - On-Site Chlorine Generation (OSCG) technology using Capital Controls® chlorine injection equipment, and EST™ scrubbers for emergency chlorine abatement. The decision for a territory-wide conversion was made to address safety concerns associated with liquid chlorine containers being transported and stored around the highly populated waterworks. The ten water treatment plants –seven with contractor REC-Chevalier JV and three with Torishima (Hong Kong) Limited - include two CECHLO OSCG trains at each of the potable water treatment plants, one primary and one standby, and will have a combined generation capacity of 16,920 kg/day chlorine. All systems are expected to be operational by 2020.

“Decades of experience and pioneering technologies allow us to go beyond simply providing equipment; we strive to find a unique and bespoke solution to our customers’ problems,” saidMarwan Nesicolaci, Sr. VP Global Sales & Operations Asia, Water Technologies Business. “Developing innovative solutionsthat can change the narrative around water-related security issuesis really exciting. The collaboration between the consulting engineers, contractors, the municipality, and very experienced De Nora engineers resulted in a solution that alleviates safety concerns usingon-site technology, while keeping the Capital Controls injector equipment that has been performing successfully there for ten years.”

Alternative disinfection technologies including ozone, chlorine dioxide, on-site hypochlorite generation at a low concentration, and bulk hypochlorite, were evaluated by the project’s engineering consultant. The selected De Nora CECHLO system is an Ion Exchange Membrane Electrolytic Technology to produce a chlorine gas and a 12.5% high-concentration hypo on site. Benefits of the system include no safety risk associated with transportor storage of hazardous chemicals, no cost for staff to handle hazardous chemicals, and low production costs.

Developed more than 35 years ago, with continued investment in reliability and performance improvements, the CECHLO electrolyzer uses De Nora proprietary, patented DSA® anodes, which have low power requirements with high performance, proven durability, and low operating costs.

About De Nora
De Nora is an Italian multinationalleader in sustainable technologies that offers energy saving products and water treatment solutions. Globally De Nora is the pre-eminent provider of electrodes for electrochemical processes (for clients in the Chlorine & Caustic, Electronics & Surface Finishing, Pool Electrochlorination and Specialties sectors) and is among the leaders in technologies and processes for the filtration and disinfection of water (for clients in the industrial, municipal water and wastewater, power and energy, and marine sectors). The Company has grown organically by continuous innovation and externally through major acquisitions in the USA, United Kingdom Japan, and Italy. It serves clients in 119 countries and has a physical presence in 11 countries worldwide with 19 offices, 12 manufacturing facilities, and three research & development centers in Italy, the USA and Japan. The Group intellectual property portfolio currently contains 355 patent families with more than 3,000 territorial extensions.

Source: De Nora