J9九游国际真人

混凝？絮凝？助凝？ 在水处理药剂中，应用最广泛的是当属混凝与絮凝、聚合氯化铝与聚丙烯酰胺了。那么两者在使用过程中具体有哪些注意事项？让我们一来一探究竟。 凝聚：投加混凝剂后水中的胶体失去稳定性，胶体颗粒互相凝聚，结果形成众多的“小矾花”。 絮凝：凝聚过程中形成的“小矾花”通过吸附、卷带、架桥等作用，形成颗粒较大絮凝体的过程。 混凝：是凝聚、絮凝两个过程的总称。是水中胶体粒子及微小悬浮物的聚集过程。 也就是说，“混凝”包含了从原水投药到水混合、药反应（脱稳、絮凝）再到形成大颗粒的絮凝物的整个过程。 而絮凝是指胶体...

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、 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...