BIOS, ABSTRACTS, PHOTOS

August 15, 2013

“Control and Treatment Technology for FGD Wastewater”

WILLIAM A. SHAW - VEOLIA WATER SOLUTIONS & TECHNOLOGIES

BIO: William A. Shaw is a Senior Process Engineer for HPD^® Evaporators and Crystallizers at Veolia Water Solutions & Technologies North America.  He holds a B.S. in Chemical Engineering from Cornell University and an M.S. from the University of Wisconsin – Madison.  

He has 35 years experience in process design of evaporator and crystallizer systems in the chemical, pulp and paper, and food & beverage industries.  In the power generation industry, he has designed zero liquid discharge systems for wastewater from cooling towers, FGD scrubbers, and gray water from coal and petcoke gasification plants. 

He published recent articles in journals such as POWER, CHEMICAL ENGINEERING, WATER WORLD, and ULTRAPURE WATER. 

ABSTRACT:  “Zero Liquid Discharge Systems for FGD Wastewater”

In light of proposed EPA Effluent Limit Guidelines, many coal-fired power plants are considering ways to reduce their water discharges. Zero liquid discharge (ZLD) processes are being studied in anticipation of even more restrictions on water discharges in the future. Closing the loop by adopting a ZLD treatment scheme will usually involve consideration of evaporation and crystallization technologies as these have had and will continue to play an important role in the recovery and re-use of water from industrial wastewater streams. However, ZLD systems can be very expensive from both a capital and operational perspective. New approaches to evaporator system design, especially the recently patented CoLD^® crystallization technology, provide additional options to power plants which are looking for methods to effectively and economically reduce or eliminate their water discharges from FGD scrubbers.  

GORDON MALLER – URS CORPORATION

BIO: Mr. Maller serves as a Principal Project Manager and Business Development Manager for URS Corporation – Process Technologies Office.  As a Project Manager, he has directed projects, managed resources, and directed engineers and scientists in programs aimed at upgrading, optimizing, and testing flue gas desulfurization and wastewater treatment processes, .  Mr. Maller’s responsibilities as a Business Development Manager are to develop work opportunities, identify and develop new technologies and provide overall technical and business leadership.

ABSTRACT: Wastewater Treatment and Zero Liquid Discharge Technologies – Overview and New Technology

New effluent limitation guidelines (ELG) have been proposed by the EPA which will require utilities to provide significantly higher levels of treatment prior to discharge for a number of wastewater streams in contact with coal combustion residuals (CCR) including FGD wastewater. This presentation will provide an overview of the new rules as well as an overview of existing and emerging WWT and ZLD technology to comply with the new rules. New technology and strategies for plants to operate as ZLD at a much lower cost, optimize water usage, and accomplish necessary improvements such as closing waste impoundments will also be discussed.

NORIKAZU INABA – ADVATECH (A URS AND MHIA CO.)

BIO: Manager of Process Engineering at MHIA /Advatech (A URS & MHIA Company)

ABSTRACT:  “Simple Zero Liquid Discharge System for FGD Wastewater”

MHI has developed low CAPEX/OPEX technology for truly achieving zero liquid discharge (ZLD) from wet FGD to meet the stringent effluent limits.

PAUL CHU - EPRI

BIO: Program Manager at EPRI

Past:  Research Engineer at Babcock & Wilcox

Education: The University of Texas at Austin

University of Arkansas at Fayetteville

ABSTRACT: Paul Chu will present the work EPRI has been doing to evaluate wastewater treatment options.