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International Water Conference Proceedings - 1940-2008Listing of IWC Paper Proceedings from 1940-2008

IWC Ref. No.

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Title

Author & Affiliation List

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order

Presentation Type

IWC-00~00

Keynote Address

CHRISTIAN MAURIN, Chairman and CEO, Nalco Chemical Company, Naperville, IL

The address aims to expand awareness concerning the current worldwide water situation, and the important responsibility that water experts have to help industry use water as efficiently as possible. Integrated water management solutions will help preserve the water supply while serving all sectors and applications equally well.

http://www.eswp.com/water/proceedings_order_form.html

Keynote Address

IWC-00-01

Microbiological Control in Process Cooling Water Systems: An Overview

RICHARD W. LUTEY, Ph.D., RWLutey & Associates Inc., Memphis, TN

This report is an overview discussion of what effect recent operational and environmental changes have on the technology for microorganism control in process water systems. Non-traditional sources of make-up water and the increased importance of environmental stewardship need an assessment of the capability of current technology to control existing and future problems of uncontrolled microbiological growth, corrosion, scale, and fouling. Does state-of-the-art technology adequately provide solutions to present and future challenges of controlling microorganisms in process cooling water systems?

Make-up water, microbiological problems, MIC, alternative make-up water, environmental impact, population dynamics, ecological succession, microorganism control, biocide, biostats, biodispersants

http://www.eswp.com/water/proceedings_order_form.html

Report

IWC-00-02

The On-Line Recovery and Treatment of a Fouled Cooling System in the Presence of Environmental Constraints

STEVE WILKENS, Buckman Laboratories (Pty) Ltd., Bedfordview, South Africa, W. D. SAUNDERS, Sasol Technology (Pry) Ltd., Secunda, South Africa

A fouled recirculating cooling water was successfully recovered using on-line treatment. The system blow-down was discharged to the natural screen in a sensitive aquatic system, to which specific environmental constraints were applied by the authorities. The cleaning program was designed and implemented with an awareness of these constraints, specifically phosphorus containing compounds and metals. An application period of four months was required to ensure the success of the cleaning program.

On-line cleaning, open recirculating cooling system, deposits, bio-dispersants, corrosion inhibitors

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-02D

The On-Line Recovery and Treatment of a Fouled Cooling System in the Presence of Environmental Constraints

TONY TVEDT, JR. Puckorius & Associates, Inc., Angelton, TX

http://www.eswp.com/water/proceedings_order_form.html

Prepared Discussion

IWC-00-03

Innovations in Fill Fouling Control

F. PHILIP YU, COLEMAN ROCKWELL, MIKE KUHNE, ANDREW COOPER, MICHAEL GROSHANS, Nalco Chemical Company, Naperville, IL, GORDON CRISWELL, Montana Power Company

This paper describes a new approach to remedy and monitor the high efficiency film fill fouling problem. Two power plants that suffered from severe cooling tower fill of fouling were treated successfully with an innovative biodetergent technology. In addition, an optical fouling monitor (OFM) was developed to detect biofilm establishment. This Biofilm detection capability allowed proactive biological control program changes that prevented the occurrence of severe fill fouling.

Cooling water, film fill, biofouling, biodispersant, biodetergent, biocide, on-line monitoring, optical fouling monitor

http://www.eswp.com/water/proceedings_order_form.html

Report

IWC-00-04

Off Site Condensate Resin Regeneration by Service Contract

GREG BARTLEY, Tennessee Valley Authority, Chattanooga, TN, ROBERT T. TAYLOR, Ecolochem, Inc., Norfolk, VA

At four fossil stations, condensate polisher throughput increased by 27-37 percent after initiating offsite resin regeneration. This service improved cycle chemistry, lowered cost of treatment, eliminated lost generation from acid and and caustic ingress, and eliminated hazardous regenerant chemicals from the sites. Contract regeneration also provides the unique capability to adjust resin ratios at each regeneration to optimize polisher performance based on cycle chemistry.

Condensate polishing, Deltaflow, ion exchange, make-up, membrane treatment, off-Site regeneration, outsourcing, service contract

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-04D

Off Site Condensate Resin Regeneration by Service Contract

JIM PINKOWSKI, ABB Alstom Power, Richmond, VA

http://www.eswp.com/water/proceedings_order_form.html

Prepared Discussion

IWC-00-05

Capital versus Service Contract Make-Up Systems at Intervapeur Cogeneration Station, Verviers, Belgium

MARC BEUNEN, Ecolochem International Inc.. Peterborough, UK, STEPHANE ORLOFFE, Electrabel Intervapeur, Vetviers, Belgium

Facing the problems of an ageing makeup treatment system. The Intervapeur cogeneration plant has compared capital revamping vs. outsourced pretreatment and has chosen this last one. This paper reviews the reasons of this choice, compares the European and American situations, and finally discusses the results of one year operation.

Cogeneration, Belgium, service contract, outsourcing, reverse osmosis, filtration, coagulation

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-05D

Capital versus Service Contract Make-Up Systems at Intervapeur Cogeneration Station, Verviers, Belgium

MARK CHERESNOWSKY, Infilco Degremont, Inc., Richmond, VA

http://www.eswp.com/water/proceedings_order_form.html

Prepared Discussion

IWC-00-06

Water Treatment Markets in China's Power Industry

LILI XIAO, TDC International, Montgomeryville, PA, JIUYUAN JIN, Water Treatment Technologies for Power Generation Industry, Xian, China

This paper will present extensive data to help you assess the potential market size and opportunities in the Chinese power generation markets. While China’s power industry has shown rapid growth for more than a decade (an increase in capacity of 79.3 GW from 1992 to 1997 alone), the coming economic boom after China enters WTO is expected to rival the surge of the economic development in 1992 and will further accelerate the power industry growth. Great attention is being paid to investigating effective and low cost technologies and products for power plant wastewater treatment. Although Chinese water treatment companies started entering the condensate polishing sector during recent years, power plant investors’ preference for imported condensate polishing systems will continue to prevail.

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-06D

Water Treatment Markets in China's Power Industry

DANIEL SHANNON, EWM Associates, Houston, TX

http://www.eswp.com/water/proceedings_order_form.html

Prepared Discussion

IWC-00-07

Honda of America Reuses "Gray" Water

TOM WOODROW, E. JOSEPH DUCKETT, PH.D., PE., Eichleay Environmental, Pittsburgh, PA, BILL HOLTSHERRY, Honda of America, East Liberty, OH

Honda’s “Green Factory” program aims to minimize wastes and improve the environmental performance of the entire Plant. Thanks to an innovative wastewater recycling program almost 40,000 gpd of treated effluent (“gray water”) are recycled for use other than human consumption

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-07D

Honda of America Reuses "Gray" Water

PRADEEP AMIN, Fluor Daniel Company, Aliso Fiejo, CA

http://www.eswp.com/water/proceedings_order_form.html

Prepared Discussion

IWC-00-08

Evaluation of Water Recycling Options at a Semiconductor Fabrication Plant Using Process Simulation

DEMETRI P. PETRIDES, A. KOULOURIS, J. CALANDRANIS, INTELLIGEN, INC., Scotch Plains, NJ, SCOTT HOUTHUYSEN , Lucent Technologies, Berkeley Heights, NJ

The role of process simulation in designing and evaluating the performance of water purification and wastewater treatment facilities is discussed beyond. The environmental and economic assessment of a water recycling effort at a semiconductor fabrication facility is presented.

Water purification, wastewater treatment, water recycling, computer-aided process designed, process modeling, project economic evaluation, process simulation

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-08D

Evaluation of Water Recycling Options at a Semiconductor Fabrication Plant Using Process Simulation

STEPHEN E. DOMINICK, USFilter, Rockford, IL

http://www.eswp.com/water/proceedings_order_form.html

Report

IWC-00-10

Eliminating Oxidizing Biocides from Condenser Cooling Water Systems

R. JONES, BetzDearborn, Trevose, PA, JAMES F. ECHOLS, SIDTEC Services, Inc., Houston, TX, TOM FREEMAN, Mississippi Power Co., Escatawpa, MS, M. LONG, PECO Energy, Delta, PA

Since 1992, a non-intrusive, on-line mechanical tube cleaning system (SIDTEC®) has been used to maintain main steam condenser cleanliness in the absence of oxidizing biocides, gaining over seventy five unit-years of experience. This paper examines the condenser maintenance program of three case histories of plants using the condenser maintenance program.

Condenser, tube cleaning, heat rate, performance, oxidizing biocide

http://www.eswp.com/water/proceedings_order_form.html

Report

IWC-00-10D

Eliminating Oxidizing Biocides from Condenser Cooling Water Systems

EDWARD S. BEARDWOOD, Drew Industrial Division of Ashland Canada, Ajax, Ontario, Canada

http://www.eswp.com/water/proceedings_order_form.html

Prepared Discussion

IWC-00-11

Mixed-Oxidant Application in Cooling Tower Maintenance

WESLEY L. BRADFORD, Ph.D., Los Alamos Technical Associates, Inc., Los Alamos, NM, PAUL PETERSON, Trident Technologies, Inc., San Diego, CA

Tests using mixed-oxidant solution instead of oxidizing biocides for cooling tower maintenance found: (1) aerobic bacteria counts consistently less than 1000/mL in the cooling water; (2) ease in maintaining FAC concentrations at 0.2 - 0.3 mg/L using an ORP controller; and (3) removal of biofilms from cooling surfaces, reducing microbiologically-induced corrosion

Mixed oxidants, cooling tower maintenance, aerobic bacteria, biofilms, corrosion control

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-11D

Mixed-Oxidant Application in Cooling Tower Maintenance

EDWARD S. BEARDWOOD, Drew Industrial Division of Ashland Canada, Ajax, Ontario, Canada

http://www.eswp.com/water/proceedings_order_form.html

Prepared Discussion

IWC-00-12

Algicidal Performance of Bromine Biocides and Recommendations for Algae Control in Cooling Water Systems

ANDREW J. COOPER, ANTHONY W. DALLMIER, Nalco Chemical Company, Naperville, IL

This paper presents results of laboratory and field studies that evaluated algicidal properties of stabilized and unstabilized halogen biocides. These studies also evaluated the algicidal properties of isothiazolone-based non-oxidizing biocide composition. Also presented are results of field studies to evaluate efficacy of stabilized alkaline liquid bromine antimicrobial at controlling algae fouling in open recirculating cooling water systems. Mechanical, operational, and chemical recommendations for algae control are summarized to serve as a reference for end-users who require solutions to algae control problems.

Cooling water, algae control, bromine, biocide

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-12D

Algicidal Performance of Bromine Biocides and Recommendations for Algae Control in Cooling Water Systems

ROBERT D. BARTHOLOMEW, PE, Sheppard T. Powell Associates, LLC, Baltimore, MD

http://www.eswp.com/water/proceedings_order_form.html

Prepared Discussion

IWC-00-13

Dosing Liquid Disinfection Chemicals under Vacuum: Experiences from within the UK and USA Water Industry

ANDREW W. COURT, DAVID GRANT, A. G. CALLERY, Portacel Disinfection Systems, Hampshire, UK

This paper describes the Portacel pumpless process of disinfectant liquid dosing under vacuum conditions, and identifies the salient design features of this new dosing system. It focuses on the lessons learned through the design, installation and operation of a number of sites within the UK and USA where liquid chemicals, sodium hypochlorite and sodium bisulfite, are used for disinfection of consumer water supplies. It discusses delivery systems, full scale operational experience and problems encountered under site-specific conditions to chemical reactions of the liquid with water

http://www.eswp.com/water/proceedings_order_form.html

Report

IWC-00-14

The Impact of Eliminating Softeners as a Pre-Treatment for Reverse Osmosis Systems

BRETT ANDREWS, JOSEPH MAZUR, PermaCare US A Inc., San Diego, CA

Sodium Zeolite Softeners are often seen as the most efficient method of scale control for reverse osmosis plants and are widely used for pre-treatment. The paper looks at the impact on economics and system performance by replacing ion exchange softening with chemical antiscalant

http://www.eswp.com/water/proceedings_order_form.html

Report

IWC-00-15

Interstage Energy Recovery Turbine Application - Marco Island, Florida

JULIA E. NEMETH, P.E., Ham R/O Systems, Inc., Venice, FL, STEVEN DURANCEAU, Ph.D., PE, Boyle Engineering Corporation, Orlando, FL

Marco Island, Florida operates a 6 MGD reverse osmosis plant. The brackish water feed TDS can vary from 7000 to 11,000 mg/l. The utility incorporated inter-stage energy recovery boosters in the RO skids during an expansion and later added boosters to the second stage. The RO plant has been operating for two years with the energy recovery turbines. Data will be presented on capital costs versus energy savings and on improved performance and membrane life.

Water treatment, reverse osmosis, energy recovery, Interstage boost

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-15D

Interstage Energy Recovery Turbine Application - Marco Island, Florida

GEOFFREY K. HART, Montgomery Watson, Sunrise, FL

http://www.eswp.com/water/proceedings_order_form.html

Prepared Discussion

IWC-00-16

Pilot Testing High Efficiency Reverse Osmosis on Gas Well Produced Water

ROBERT BRADLEY, Hydrometrics, Inc., Houston, TX

This paper describes the design, development, pilot testing and scale-up of a new process to clean up the highly saline produced water at natural gas wells involving ion exchange and reverse osmosis. This process removes the salts, organics, and metal ions so that 80% of the treated water meets drinking water standards allowing it to be used for irrigation or discharged to streams and fishing ponds. The remaining 20% is disposed of in the original deep wells. The process is environmentally beneficial and is less expensive than transporting all of the water to disposal wells.

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-16D

Pilot Testing High Efficiency Reverse Osmosis on Gas Well Produced Water

BRIAN POWERS, The Dow Chemical Company, Kingwood, TX

http://www.eswp.com/water/proceedings_order_form.html

Prepared Discussion

IWC-00-17

System Monitoring for Chemistry Control

SARA JANE GEARY, JAMES BELLOWS, Siemens Westinghouse Power Corp., Orlando, FL

The logic to simplify monitoring in a modern combined cycle plant is given. Examples with silica and sodium show that for relatively non-volatile species, the HP boiler water can be used as the plant control sample and will indicate that equipment protection requirements are met. Other parameters will require more direct monitoring. The relationships among various samples are used to select the plant control parameters. The relationships must be periodically confirmed.

Monitoring, sample system, power cycle, cross control, steam purity, boiler water

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-17AC

System Monitoring for Chemistry Control

SARA JANE GEARY, JAMES BELLOWS, Siemens Westinghouse Power Corp., Orlando, FL

http://www.eswp.com/water/proceedings_order_form.html

Authors Closure

IWC-00-17D

System Monitoring for Chemistry Control

WILLIAM MOORE, Calpine Corp., Houston, TX

http://www.eswp.com/water/proceedings_order_form.html

Prepared Discussion

IWC-00-18

Nuclear Plant Steam Generator Deposit Management

KARA PRENTICE, PHILIP BATTAGLIA, ART BYERS, , DEBORAH FARNSWORTH, JONNA PARTEZANA, Westinghouse Electric Co., Pittsburgh, PA

The kinetics and mechanism of dissolved oxygen reduction by hydrazine and hydrogen were studied over noble metal and transition metal oxide catalysts supported on activated carbon fiber (ACF). The activity of prototype Pt/ACF cartridge catalyst and the feasibility of its field application were examined with good results by a pilot scale reactor.

http://www.eswp.com/water/proceedings_order_form.html

Report

IWC-00-18D

A Study on the Application of a New Dissolved Oxygen Removal System Using Activated Carbon Fiber Cartridge Catalyst

RONALD D. WINE, Ronald D. Wine Consulting, Harrisburg, PA

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-19

A Study on the Application of a New Dissolved Oxygen Removal System Using Activated Carbon Fiber Cartridge Catalyst

JEON-SOO MOON, KWANG-KYU PARK, SEOK-WON YUN, Korea Electric Power Research Institute, Taejon, South Korea, GON SEO, Chonnam National University, Taejon, South Korea

Technologies that allow nuclear plant steam generator tubing to operate without corrosion over the life of the plant are critical. By extending steam generator lifetime, nuclear utilities achieve increased operating performance and economic benefits. This paper discusses several engineering evaluations that comprise an approach known as Steam Generator Deposit Management.

Steam generator, deposit management, deposit analysis, deposit profiling, visual inspection

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-20

Maintaining Storage Tank Dissolved Oxygen Levels Utilizing Gas Transfer Membranes

J. HELMRICH, Florid a Power & Light, Florid a City, FL, WILLIAM E. HAAS, Ecolochem, Inc., Norfolk, VA, JAIME STATON, Ecolochem Inc., Miami, FL

A gas Transfer Membrane, operating on a kidney loop, continuously maintains dissolved oxygen levels in a storage tank to less than 100 ppb. Initially, the tank required a seven x turn over rate to bring the dissolved oxygen from 3.0 ppm dissolved oxygen to less than 100 ppb. The data shows that this process is an acceptable substitute for a nitrogen blanket or other technology that prevents oxygen ingress into a storage tank.

Gas transfer membrane, GTM, deoxygenation, nitrogen blanket, storage tank, dissolved oxygen, the gassing

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-21

Quad Polymer Technology - Advances and Benefits for High Alkaline / High Cycle Cooling Water Treatment

JOHN RICHARDSON, MICHAEL G. TRULEAR, Chem Treat, Inc., Richmond VA

A new Quad polymer technology designed for acid free high LSI cooling system operation has been developed. Benefits, including direct measurability of key actives and superior performance at high calcite and magnesium-silicate saturation levels, are discussed. Results of laboratory research and field experience are presented.

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-21D

Quad Polymer Technology - Advances and Benefits for High Alkaline / High Cycle Cooling Water Treatment

THOMAS W. WOLFE, Puckorius & Associates, Baton Rouge, LA

http://www.eswp.com/water/proceedings_order_form.html

Prepared Discussion

IWC-00-22

Chemical Conditioning Programme for an Evaporative Tower Cooling Circuit

FABIO GIGLI, CHIMEC S.p.A., Rome, Italy

The chemical conditioning program for cooling circuits of a plant was producing phosphoric and sulfuric acid has been presented. The choice of the program also takes into account the particular environmental situations, as well as the characteristics of the plant and the makeup water. Treatment has been defined after a practical and theoretical study using software and the pilot cooling tower.

Water shortage, stand storms, plate heat exchangers, bacteria growth, algae growth, scale, corrosion, pilot heat exchanger, pilot cooling tower

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-23

Part II: Cooling Water Deposits - Calcium Phosphate Prediction Tools: Those that Work and Those that don't: Guidelines

PAUL R. PUCKORIUS, Puckorius & Associates, Inc., Evergreen, CO

Phosphate use in cooling systems is extensive and requires knowledge of when deposits will occur and how to predict their occurrence. Guidelines for both useful predictive and impact of water quality are provided along with those that are not useful.

Indices, scale, phosphate, calcium phosphate, cooling water

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-23D

Part II: Cooling Water Deposits - Calcium Phosphate Prediction Tools: Those that Work and Those that don't: Guidelines

ROBERT FERGUSON, French Creek Software, Kimberton, PA

http://www.eswp.com/water/proceedings_order_form.html

Prepared Discussion

IWC-00-24

Calcium Carbonate Deposition from Industrial Process Water and It's Mitigation on Heated and Unheated Surfaces

GORDON BURTON, M. E. BLIMKIE, C. W. TURNER, Atomic Energy of Canada, Chalk River, Ontario, Canada, MICHAEL ROGERS, Syncrude Canad a Ltd., Fort McMurray, Alberta, Canada

Increased hardness of the process water at Syncrude Canada Ltd. is expected to result in increased deposition on their process heat exchangers and piping. The ability to predict and mitigate the deposition from process water has been investigated by a radiotracer technique using a model heat exchanger fouling loop. Deposition on the heated and downstream isothermal surfaces was dominated by precipitation and particulate fouling respectively. The rate of precipitation fouling was significantly higher than the rate of particle deposition, and both rates increased with increasing temperature. The results were incorporated a preliminary model to predict deposition rates as a function of water chemistry and heat exchanger temperature.

Process water, scaling inhibitor, scaling, heat exchanger, oil sands, modeling, radioactive tracing

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-24D

Calcium Carbonate Deposition from Industrial Process Water and It's Mitigation on Heated and Unheated Surfaces

ROBERT ZUHL, BF Goodrich Co/Specialty Additives Group, Cleveland, OH

http://www.eswp.com/water/proceedings_order_form.html

Prepared Discussion

IWC-00-25

Reverse Osmosis Pretreatment of High Silica Waters

SIMON G. GARE, Ecolochem International, Inc., Peterborough, UK, MATTHEW J. WHITE, Ecolochem International, Inc., Philippines, JORGE L. MASBATE, JR., Pilipinas Shell Petroleum Corp., Philippines

To reduce the high silica content in their feedwater, a single-pass RO system with ion exchange softening pretreatment was installed in a petroleum refinery in South East Asia. The results of this outsourced installation will be discussed.

http://www.eswp.com/water/proceedings_order_form.html

Report

IWC-00-26

Treatment of Smelter Wastewater Using an Innovative Reverse Osmosis Process Allows Zero-Liquid Discharge

BOB KIMBALL, Hydrometrics, Inc., Helena, MT

An innovative RO process was successfully pilot-tested and is being installed at a metals smelter to treat process wastewater for zero liquid discharge. This paper presents the results of the pilot test activities.

http://www.eswp.com/water/proceedings_order_form.html

Paper

IWC-00-26D

Treatment of Smelter Wastewater Using an Innovative Reverse Osmosis Process Allows Zero-Liquid Discharge

WAYNE BATES, Hydranautics, Rockton, IL

http://www.eswp.com/water/proceedings_order_form.html

Prepared Discussion

IWC-00-27

Low Fouling Polyamide Reverse Osmosis Membranes: A Comparison of Manufacturers' Products and a Comparison to Cellulose Acetate Membranes on a High Fouling Surface Water

PATRICK H. KINGHORN, Ecolochem, Inc., Baytown, TX, WILLIAM E. HAAS, Ecolochem, Inc., Norfolk, VA

Sets of cellulose acetate membranes, low fouling polyamide membranes from one manufacturer, and low fouling polyamide membranes from another manufacturer were operated under virtually identical conditions. The fouling nature and salt rejection for each were compared and contrasted. There were unremarkable differences in salt rejection over time. Both low fouling polyamide membranes demonstrated greater fouling than the cellulose acetate membranes. After almost one year, the low fouling polyamide membranes continued to require less pressure than the cellulose acetate membranes.

Reverse osmosis, membranes, polyamide, cellulose acetate, fouling

http://www.eswp.com/water/proceedings_order_form.html

Report

IWC-00-28

Enhancing the Measurement of Silt Density Index by Chemical Modification of the Sample Stream

STAN LUECK, RODI Systems Corp., Aztec, NM

Cases have been documented in which the conventional silt density index (SDI) test was not effective in identifying the fouling potential of RO Feedwater as it does not simulate the chemical changes which occur in the RO systems. RODI Systems Corp. is currently developing a method of SDI testing in which a small amount of reagent is injected into the sample stream before it passes through the filter. This simulates the change in chemistry occurring on the surface of the membrane and allows the SDI test to detect a wider range of potential RO foulants.

Reverse osmosis, desalination, monitoring, silt density index, SDI, membrane fouling

http://www.eswp.com/water/proceedings_order_form.html

Report

IWC-00-29

An Examination of the Use of Vibrational Shear in Ultra-filtration, Nano-filtration and Reverse Osmosis Membrane Water Treatment

GLENN REYNOLDS, ROBERT GLOD, New Logic International, Emeryville, CA

This report will discuss the use of vibrational shear in UF, NF and RO membrane water treatment. This will cover the process & effectiveness. Basis is case study & prior performance

http://www.eswp.com/water/proceedings_order_form.html

Report

IWC-00-30

Boiler Failure Mechanisms

DOUGLAS DEWITT-DICK, STEPHEN MCINTYRE, JOSEPH HOFILENA, Ashland Specialty Chemical Co., Boonton, NJ

Providing explanations of in-service boiler tube failures may be delayed pending complete metallurgical analysis. Field observations in conjunction with central records may be useful in preliminary failure assessment. This paper will present several case studies and provide information to assist the operator in preliminary failure assessment. The mechanisms reviewed include overheating, hydrogen damage, chemically induced corrosion, and corrosion fatigue.

Deposit weight density, hydrogen damage, caustic gouging, departure from nuclear boiling, DNB, Larson-Miller parameter, flow assisted corrosion

http://www.eswp.com/water/proceedings_order_form.html

Panel Report

IWC-00-31

The Impact of Water Treatment System Design and Operation on Boiler Feedwater Purity and Boiler Tube Failures

ROBERT HOLLOWAY, Holloway Associates, Etobicoke, Ontario, Caanada

This report describes conditions and occurrences in feedwater treatment systems that can contribute to boiler tube deposition, corrosion and possible failure. The information is based on many years of personal observation of the design and operation of all types of make-up water and condensate treatment equipment.

http://www.eswp.com/water/proceedings_order_form.html

Panel Report

IWC-00-32

Determining the Need for Chemically Cleaning a Boiler

K. ANTHONY SELBY, Water Technology Consultants, Inc., Evergreen, CO

Boilers begin to accumulate deposits as soon as they are placed in service. In some cases the impact of deposit accumulation is a loss of efficiency. In other cases, however, the deposits may insulate the tubes and cause boiler tube failures. There are several methods that can be used to determine if a boiler needs to be cleaned. Included are the occurrence of boiler tube failures, inspections, non-destructive testing, a review of water chemistry trends and “deposit weight density” (deposit mass loading) determinations.

Boiler, cleaning, chemical cleaning, deposits, boiler failure, deposit weight density

http://www.eswp.com/water/proceedings_order_form.html

Panel Report

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