Application of SiC MembraneUltrafiltration

in Power Plantsh2osystems.ca

Water Treatment in Power Generation

Facilities

• Significant volumes of water are used in power plants for cooling, scrubbing, or boiler feed water purposes.

• Proper filtration must be provided in order to treat the waste effluent.

SiC Membrane Ultrafiltration

• Wtih water scarcity challenges at an all time high -> long term re-use of water is required

• H2O Systems SiC Membrane Ultrafiltration has proven itself in filtering waste effluent for re-use in German & Danish Powerplants

How it works Feed flow is tangential to the

surface of the membrane in order to sweep rejected particles and solutes away

CROSS FLOW FILTRATION

Application of SiC Membranes in Power Plants

Scrubber Effluent

Treatment

Scrubbing liquid from wet scrubbers in coal fired power plants contain heavy metals, ash, and soot.

Current Treatment systems rely heavily on chemical dosing, handling, and sludge disposal -> $$$ OPEX

• SiC Membranes have a smaller footprint with 99% recovery rate-> reduced OPEX• High flux & robustness can handle

highly fluctuating heavy metal concentrations to meet regulatory compliance in 1 step• Can handle highly corrosive

scrubber liquid

Cooling Tower Filtration

Circulating process water is cooled and re-used to extract heat in condensers.Variation in water quality, source, and heat transfer surfaces subject to corrosion, scaling, and microbiological fouling

• SiC Membranes can be used for sidestream ultrafiltration to continuously filter TSS and Mircobioligical organisms• Ideal in scenarios with high bio-

fouling potential -> can be cleaed with any chemical or strong oxidizer

Boiler Feed Water Treatment

Feed water of high purity is required to ensure proper heat transfer in a steam generation facility. Reduction of impurities entering the boiler system reduces scale buildup on heat transfer surfaces which would also reduce fouling.

• RO system is used to treat feed water -> SiC Membrane Ultrafiltration used as pre-treatment before RO system • Filters TSS and TOC to reduce

subsequent RO membrane fouling• Can be accomplished in a single

step without any added chemicals, reducing the OPEX over its lifespan

Boiler Blowdown Treatment

Blowdown water has TDS & heavy metals that need to be filtered out and treated for re-use

• SiC Membrane UF can handle varied feed conditions with upsets in TDS/TSS in feed water• Can retain fine particulate and

heavy metals at high flux conditions• Effective pre-treatment + RO solution

to conventional treatment options -> reduced chemical reagents, process steps, and OPEX

Next steps

• Let’s chat about our Pay by the Gallon pricing model!

• Submit water for analysis • Proposal & Optimization of installation time/cost

• Pilot Unit Trial• Full systems integration• Start-up and commissioning

Contact us!

info@h2osystems.ca