2023-05-06
Engineers develop a new water treatment technology to completely remove
Hongjie Water, March 26: Engineers at the University of British Columbia have developed a new water treatment method that can safely and efficiently remove "permanent chemicals" 【PFAS】 from drinking water - and is permanently effective.
The full English name of PFAS is per/polyfluoroalkyl derivativ...
2023-05-06
Working principle of dosing in various stages of reverse osmosis
Working principle of reverse osmosis dosing
01
Various raw water contains certain concentrations of suspended solids and soluble substances. The suspended solids are mainly inorganic salts, colloids, and biological particles such as microorganisms and algae. Soluble substances mainly include solub...
2023-05-06
Which is better, reverse osmosis+EDI or traditional ion exchange
01
What is EDI?
The full English name for EDI is electrode ionization, which translates into electrodesalting, also known as electrodeionization, or packed bed electrodialysis.
Electrodeionization technology combines ion exchange and electrodialysis. It is a desalination technology developed on t...
2023-05-06
Control Measures for Inlet Water Quality Index of EDI Ultrapure Water System
Control Measures for Inlet Water Quality Index of EDI Ultrapure Water System
The control measures for the inflow water quality indicators of EDI ultra-pure water system are as follows:
1. Control of inlet water conductivity. Control the conductivity during the pre-treatment process so that the EDI...
2023-05-06
Precautions for adding acid to reverse osmosis inlet water to prevent scaling
Hydrochloric acid and sulfuric acid can be added to the influent water to reduce the pH. Sulfuric acid is more commonly used than hydrochloric acid because it is cheap, does not emit smoke and corrodes surrounding metal components, and the membrane has a higher removal rate of sulfate ions than chlo...
2023-03-16
10 water treatment knowledge
1. What is COD (chemical oxygen demand)?
Chemical oxygen demand (COD) refers to the amount of oxygen required by the oxidizable substances in the wastewater when they are oxidized by chemical oxidants, in mg/L of oxygen. It is the most commonly used method to determine the content of organic matter...
2023-03-14
Several treatment technologies of membrane water treatment
Membrane separation technology is a high and new technology that has risen rapidly in the past 40 years. It has developed into an industrialized high-efficiency energy-saving separation process and an advanced unit operation process.
At present, technologies such as microfiltration, ultrafiltratio...
