1 July 2016 Installation of Evoqua’s Ionpure brand continuous electro-deionization (CEDI) modules is in progress as part of the Quassim Power Plant conversion project, on the Arabian Peninsula. The Saudi Arabian Electrical Company (SEC) project will convert two power generation extensions from simple cycle to combined cycle operation, adding over 120MW output from each of three new steam turbine generators.

The CEDI modules, in a system supplied by Pure Water Group of The Netherlands, are integral to a 6,168 m³/day reverse osmosis desalination and ultra-purification plant designed and constructed by WETICO (Riyadh). They will ensure maximum removal of ions capable of promoting corrosion in the Quassim plant’s supercritical steam generators.

Specifically, two skids of four Ionpure® VNX55-EP modules will provide the high level of demineralization efficiency required. Less than 3ppb sodium and chloride is demanded for steam generator feed water at the Quassim Extensions II and III sites.

Designed to meet extremely low sodium, chloride and sulfate specifications, along with greater than 95% silica and boron removal, the VNX55-EP module consistently produces a 0,1 µS/cm conductivity (10 Megohm-cm resistivity) measure of product water quality.

In order to further increase boiler corrosion protection, dissolved oxygen is removed downstream of the CEDI modules using Gas Transfer Membrane Deoxygenation units. The units reduce oxygen content to less than 100ppb.

As an Ionpure ‘Master Service Provider’, Pure Water Group, is extremely experienced in supplying high purity and ultrapure water applications featuring CEDI systems. The company was involved in shaping the requirements of an Enhanced Performance (EP) module, with a wide tolerance for feed water hardness and quality variation, which resulted in the development of Ionpure® VNX55-EP.

Ionpure® VNX55-EP module
Ionpure® VNX55-EP module

Qassim Power Plant serves the people of Buraydah, the capital of the Qassim region, in the heart of the Arabian Peninsula. The power plant is being expanded to meet the increasing demand of power in this region through a conversion from simple cycle operation to combined cycle operation. The project will convert 12 oil fired simple cycle combustion turbines to combined cycle operation, increasing generation capacity by approximately 360 MW. The combined cycle plant will comprise three blocks of four gas turbine generators, four heat recovery steam generators and one steam turbine generator.

The Ionpure brand is synonymous with sustainable, post-RO electrochemical solutions for industrial, power generation, pharmaceutical, high purity, and reject water recovery. The new enhanced performance VNX and LX modules continue the Ionpure tradition of continual improvement to retain leadership in water purification technology. Full details, including new model numbers and discontinued products can be found at: http://www.evoqua.com/en/brands/IonPure

About Evoqua Water Technologies

Evoqua Water Technologies is the global leader in helping municipalities and industrial customers to protect and improve the world’s most fundamental natural resource: water. Evoqua has a more than 100-year heritage of innovation and industry firsts, market-leading expertise, and unmatched customer service, where it continues to transform water and wastewater. Its cost-effective and reliable treatment systems and services ensure uninterrupted quantity and quality of water, enable regulatory and environmental compliance, increase efficiency through water reuse, and prepare customers for next-generation demands. Evoqua’s unparalleled portfolio of proven brands, advanced technologies, mobile and emergency water supply solutions and service helps cities across the world provide and discharge clean water, and enable leisure and commercial industry to maximize productivity and profitability. For more information, visit www.evoqua.com.

*Ionpure is a registered trademark of Evoqua Water Technologies LLC in some countries

Product contact: Nick Armstrong (Nicholas.Armstrong@evoqua.com)
Global Product Manager (Ionpure EDI & Laboratory Water Systems)
Evoqua Water Technologies, LLC
Tel. +1 978 614 7302