lehu乐虎

1、 What is ultrafiltration membrane Ultrafiltration membrane is one of the earliest developed polymer membranes, and it is a microporous filter membrane with a rated pore size range of 0.001-0.02 μ M. The solvent in the solution and some of the solutes with low molecular weight penetrate the oth...

1. Why do COD and BOD are often used in wastewater analysis? There are many organic substances in the wastewater, including more than ten, dozens, and even hundreds of organic substances, which can be often encountered. If the qualitative and quantitative analysis of organic substances in the waste...

How often should the RO system be cleaned Generally, when the standardized flux decreases by 10-15%, or the desalination rate of the system decreases by 10-15%, or the operating pressure and the pressure difference between sections increase by 10-15%, RO system should be cleaned. The cleaning frequ...

Membrane bioreactor (MBR) has been widely used in wastewater treatment and resource engineering due to its high efficiency, energy saving, no phase change, no secondary pollution, good water quality, less land occupation and high degree of automation. Membrane bioreactor is used to treat municipal w...

01. What kinds of chemicals are commonly used in wastewater treatment? In order to meet the discharge standard or reuse after wastewater treatment, a variety of chemicals need to be used in the treatment process. According to different uses, these chemicals can be divided into the following categor...

Ultra pure water equipment adopts advanced reverse osmosis membrane water treatment technology and mature ion exchange water treatment technology, which is an irreplaceable means in the current process of producing high purity water. Ultra pure water production equipment has the advantages of high w...

1. causes of reverse osmosis membrane pollution one point one The damage of the performance of RO membrane, which causes membrane pollution 1. Polyester reinforced non-woven fabric, ca. 120 μ M thick; 2. Polysulfone material porous intermediate support layer, ca. 40 μ M thick; 3. Ultra thi...

Let's first understand what softened water is In our daily life, we often see scale formation on the inner wall of the kettle after long use. What is the reason for this? It turns out that the water we use contains many inorganic salts, such as calcium and magnesium salts. Once they are heated ...