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Articles
Microfiltration In the Pure Water and Industrial Water Sectors
MF plays an important role both in the water treatment process and industrial separation processes and will grow even more important as better reuse and system efficiencies are sought.
Cleaning
eBooks
Is Your Membrane System Reaching Full Potential?
Energy markets worldwide face extreme volatility driven by geopolitical tensions and a rebound in energy demand after the COVID-19 crisis. Finally, leading to extreme price increases for gas, oil, and electricity. It is has become imperative to conserve resources and optimize our consumption.
Avista™ Membrane Chemicals
Technical Guides
Normalization Technical Guide
Normalization refers to calculations that adjust recorded performance values to a common reference by accounting for variations in feed water temperature, feed water TDS, feed and permeate flowrates and the system pressures.
Avista™ Membrane Chemicals
Technical Guides
Record Keeping Technical Guide
Record keeping is important for membrane system operators, allowing the scheduling of cleaning events, aiding in proper analysis when troubleshooting and ensuring that system maintenance is carried out at timely intervals.
Avista™ Membrane Chemicals
Case Studies
Removing Silica Scale
A raw water analysis was taken and found to have high levels of silica present that had not been considered when designing the plant.
Avista™ Membrane Chemicals, Chemical Dosing, Cleaning
Case Studies
In-Depth Analysis of Changes Restores System Optimization
A brackish water reverse osmosis (BWRO) plant had been operating effectively, applying Avista antiscalant and cleaners for about a year.
Chemical Dosing, Cleaning, Troubleshooting
Case Studies
Avista OSCAR Restores Nanofiltration System
A seawater plant operator was experiencing issues with its nano-filtration plant, which showed poor permeate flow and poor rejection.
Chemical Dosing, Troubleshooting
Case Studies
Dual Scales Cause Frequent Cleans and Membrane Replacement
Rapid RO membrane scaling from silica and sulfate. Well feedwater was high in silica, sulfate, and calcium.
Chemical Dosing, Foulant Identification, Troubleshooting
Case Studies
Optimized Antiscalant Dose Results in Significant Savings
Understanding foulant composition to optimize pretreatment and cleaning chemicals.
Chemical Dosing, Foulant Identification, Troubleshooting
Case Studies
HYDRAcap 60 UF Clean
A customer in Camarillo, California approached Avista™ to help restore baseline flows on a recently commissioned ultrafiltration (UF) system using HYDRAcap™ 60 membranes.
Chemical Dosing, Cleaning, Foulant Identification
Case Studies
Improve System Performance
Avista™ was contacted by a municipal water supplier in Ohio, USA, seeking advice on their reverse osmosis (RO) system, which had been experiencing increases in delta pressure and flow losses in a matter of days.
Chemical Dosing, Cleaning, Municipal Drinking Water
Case Studies
RO System Optimization
A consulting engineering firm selected to design and oversee the construction of a 5-mgd reverse osmosis (RO) system for a Southern California military facility handed over the system to an operations management firm
Chemical Dosing, Cleaning
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