Thursday, November 16; 1:00 – 5:00 p.m.
W02A: Ion Exchange Technology and Practical Operating Practices (repeats from Sunday)
This workshop provides a detailed review of the various ion exchange processes for softening and demineralizing water as well as preparation for boilers, cooling, and process applications. A section on how to evaluate systems, their resin, operation, and water quality of ion exchange units is an excellent troubleshooting and informative portion of this workshop. A review of the different types of ion exchange resins available along with the newest developments and how those can be applied to provide specific water quality is a must for water treatment system operations. This is a great opportunity to ask questions and solve problems.
Wayne Bernahl, W. Bernahl Enterprises, Ltd., Elmhurst, IL
W16: Thermal and Hybrid Zero Liquid Discharge Processes
This course is designed to give a basic understanding of the information required for the selection and design of a Zero Liquid Discharge (ZLD) system in a wastewater application. ZLD represents the ultimate in water utilization efficiency. ZLD systems can recover nearly every drop of water entering the site, “future proofing” owner concerns from variable and increasingly stringent discharge requirements. ZLD selection and configuration depend on numerous factors including fuel source, water chemistry, climate, environmental requirements, CapEx, and OpEx. Hybrid ZLD systems utilizing membranes and thermal components with appropriate physical, chemical, and/or biological pre-treatment processes to mitigate scaling and fouling are becoming the norm. Further alternative ZLD options include utilizing a Spray Dryer Evaporator (SDE), which evaporates this wastewater in a hot flue gas stream, or the long-term sequestration of residual constituents by creation of encapsulated materials or solidification of residual brines. The design basis will cover various treatment applications such as Flue Gas Desulfurization (FGD) wastewater, cooling tower blowdown, Produced Water, and others.
Joe Tinto and Dave Ciszewski, GE Power, Water & Process Technologies, Bellvue, WA
W17: Water Distribution System Monitoring and Optimization Utilizing Analytical Testing
The objective of the workshop is to communicate the significance of maintaining the drinking water distribution system through analytical testing and improved optimization practices. Participants will increase awareness of the regulatory monitoring requirements and gain knowledge of problems often encountered in distribution grids and storage. Additional workshop topics offer a review of potable water chemistry testing methods and how interpreting sample results can facilitate sustaining water quality within the distribution system. Workshop attendees will acquire current updates on emerging analytical water testing methods and products intended for potable water. And how those products could be applied to better maintain water quality and prevent distribution system issues. Workshop attendees will have an opportunity to interact with presenters who are industry leading regulators, expert water utility managers, drinking water scientist and a Certified Water Utility Operator. Additional benefits include hands-on demonstrations of analytical testing kits and in-depth discussions among participants and presenters in a receptive learning forum.
- Keith McLeroy, RETEGO Labs, College Station, TX
W18: UF, RO and EDI Maintenance and Cleaning
This presentation covers the following topics for ultrafiltration (UF), reverse osmosis (RO), and continuous electro-deionization (CEDI)
- A very brief description of the technologies
- Best practices for extending membrane/module life
- Common practices in data collection and interpretation
- Best practices for off-line clean-in-place (CIP) processes, including why cleaning is important, what should trigger CIP, common foulants, preparation of cleaning solutions, standard cleaning procedures, tips and shortcuts, and when off-site membrane cleaning should be considered.
- Membrane and module autopsies, when they are needed, and how to interpret the results.
Robert Cohen, Evoqua Water Technologies LLC, Rochester, NY
W19: Water and Wastewater Treatment for Natural Gas Development
The ongoing development of the unconventional natural gas market was made possible by developments in the fields of directional drilling and hydrofracturing. Hydrofracturing requires large volumes of water, processing of that water to use in hydrofracturing, and handling of the return water from the well after Completion of hydrofracturing. As hydrofracturing water comes in contact with shale, some of the soluble shale constituents dissolve into the hydrofracturing water. Current options for handling of hydrofracturing water include treatment for reuse, treatment for discharge, and deep well disposal. The focus of this course is to provide a foundational understanding of the use of water in hydrofracturing, and the disposition of return water (flowback and produced water) from hydrofractured wells. Areas of emphasis include hydrofracturing water preparation, treatment of flowback water for reuse, evaporation-crystallization of hydrofracturing water, and overall economics of water management. The course serves as a sound introduction to the area for those wishing to learn about shale gas development, and provides detailed information for professionals who may be working with shale gas water.
John Schubert, P.E., HDR Engineering, Sarasota, FL
W20: Legionella Risk Management
Recent regulations, updated guidelines and the first published U.S. standard have placed the spotlight on managing risks associated with Legionellosis and other waterborne pathogens. New guidelines and proposed standards are near completion, that will add much more information available to the public. A comprehensive understanding of these issues and how to manage the associated risks is now an essential tool for water treatment professionals, building owners and facility managers. This short course will provide the basic tools to understand Legionella, current methodologies for microbial control and especially Legionella, an overview of ASHRAE/ANSI 188-2015, and current guidelines with a focus on cooling water systems. Information on how to prepare for water management plans and Legionella response will be provided. Other new and upcoming standards and guidelines will be discussed, with a comparison against previously released documents.
Jon Cohen, ChemTreat, Inc., Richmond, VA
W21: Algae Based Treatment or Bioremediation of Wastewater: Possibility, New Trends and Technology
- To establish with details the potential of algae based treatment (or bioremediation) in wastewater treatment and reuse possibilities
- To compare the strengths and weaknesses of algae based treatment to conventional wastewater treatment processes: costs , energy demand and sustainability
- To describe the algae mode of operation in removing pollutants from wastewater, the operating conditions and list algae species that can remove effectively pollutants from wastewater
- To elaborate on possibilities of using algae biomass after wastewater treatment for green energy production purpose.
- To describe problems with current wastewater treatment practices.
- To show where do algae fit or play a role when used for wastewater treatment.
- To describe some issues related to Costs and economy regarding algae based treatment
- To discuss some aspects of design and construction
- To present some case studies, on-going research and development in the field.
Joseph Kapuku Bwapwa, Mangosuthu University of Technology, South Africa