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、 Introduction to water treatment resin Water treatment resin is divided into cationic resin and anionic resin. Cationic resin is subdivided into sodium type and hydrogen type. Sodium type resin exchanges calcium and magnesium ions in water into sodium ions to soften water. Hydrogen resin is to ex...

1、 Noun interpretation (this paper summarizes from eight aspects) 1. Raw water Raw water: refers to the natural water without any treatment or the tap water of the city, etc. is also called raw water 2. Clear water clear water: water that removes suspended impurities from raw water. 3. Desalted w...

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...

Wastewater treatment process 1. Technological process of sewage treatment plant picture 2. Wastewater treatment process of diversion biological aerated filter picture 3. Traditional activated sludge process for nitrogen removal picture 4. Two stage biological nitrogen removal process picture...

01 Introduction of application requirements of FRP membrane shell FRP membrane shell, also known as membrane pressure vessel, is a supporting product of reverse osmosis, sodium filtration, ultrafiltration and other devices. It is made of computer program-controlled winding unit and high-performanc...

Among them, there are three core subsystems 1、 Centralized water supply system in hospital The hospital centralized water supply system mainly includes medical pure water centralized supply system and acid oxidation potential water centralized supply system, which basically covers all kinds of med...

Water treatment professional terms, involving chemical water treatment, circulating water treatment, sewage treatment and other fields of water treatment, the author through many years of water treatment work experience summary, edited 180 water treatment professional name analysis, some names for t...

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...

There are many brands in the water purification industry, and the water treatment methods are complex. Some rely on a single treatment method, while others rely on a variety of filter membranes and filter media. But from a technical point of view, all changes are inseparable from its origin. Today, ...

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...