Menu
Search
Filters
Close
Menu

10048 The Role of Water Chemistry on Preventing Silica Fouling in Industrial Water Systems

Picture for 10048 The Role of Water Chemistry on Preventing Silica Fouling in Industrial Water Systems
Available for download
Product Number: 51300-10048-SG
ISBN: 10048 2010 CP
Author: Z. Amjad, Ph.D. and R. W. Zuhl
Publication Date: 2010
$0.00
$20.00
$20.00
Deposition of silica and silicate based foulants in industrial water systems (e.g., cooling, desalination, geothermal) and in reverse osmosis systems continues to be one of most difficult challenges for water technologists. The complexity of controlling silica stems from the limited solubility of both amorphous (polymerized) silica and metal silicates in the feed waters. Once formed, silica scale is extremely difficult to remove and often requires the use of mechanical and/or chemical methods; fluoride-based chemicals which present environmental and safety concerns. Therefore, industrial water systems using silica fouling prone feed waters typically employ conservative operating criteria; e.g., cooling systems limit cycles of concentration and desalination systems limit recovery. This paper and results presented herein:

• Compare the performance of polymeric additives as silica polymerization inhibitors.

• Show the impact of impurities (i.e., inorganic and organic coagulant/flocculant) on the performance of silica inhibitors.

• Illustrate the effect of water chemistry (type and concentration of cations) on the performance of silica inhibitors.

• Characterize the composition of silica precipitates formed during the experiments.

Keywords: silica polymerization, inhibitors, iron, aluminum, cationic polymer, water chemistry
Deposition of silica and silicate based foulants in industrial water systems (e.g., cooling, desalination, geothermal) and in reverse osmosis systems continues to be one of most difficult challenges for water technologists. The complexity of controlling silica stems from the limited solubility of both amorphous (polymerized) silica and metal silicates in the feed waters. Once formed, silica scale is extremely difficult to remove and often requires the use of mechanical and/or chemical methods; fluoride-based chemicals which present environmental and safety concerns. Therefore, industrial water systems using silica fouling prone feed waters typically employ conservative operating criteria; e.g., cooling systems limit cycles of concentration and desalination systems limit recovery. This paper and results presented herein:

• Compare the performance of polymeric additives as silica polymerization inhibitors.

• Show the impact of impurities (i.e., inorganic and organic coagulant/flocculant) on the performance of silica inhibitors.

• Illustrate the effect of water chemistry (type and concentration of cations) on the performance of silica inhibitors.

• Characterize the composition of silica precipitates formed during the experiments.

Keywords: silica polymerization, inhibitors, iron, aluminum, cationic polymer, water chemistry
Product tags
Also Purchased
Picture for 00332 Recent Trends In Cooling Water
Available for download

00332 Recent Trends In Cooling Water lnhibitors

Product Number: 51300-00332-SG
ISBN: 00332 2000 CP
Author: M A Quraishi, I.H.Farooqi and P.A.Saini
$20.00
Picture for 00322 SCALE CONTROL IN GEOTHERMAL
Available for download

00322 SCALE CONTROL IN GEOTHERMAL SYSTEMS

Product Number: 51300-00322-SG
ISBN: 00322 2000 CP
Author: Libardo A. Perez
$20.00
Picture for 00438 DEVELOPMENT OF PRETREATMENTS FOR
Available for download

00438 DEVELOPMENT OF PRETREATMENTS FOR COOLING WATER SYSTEMS

Product Number: 51300-00438-SG
ISBN: 00438 2000 CP
Author: Mark A. Moore, Abdullah I. Mahrous, Paul Frazer and Sulaiman A1-Jutaily
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support