What is the Impact of Membrane Structure on Membrane Fouling?

Membrane structural characteristics mainly refer to membrane pore size, surface roughness, symmetry, etc. These characteristics are closely related to membrane fouling. When the membrane pore size is larger than the solute molecule diameter, although the

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Influence of Membrane Material on Membrane Fouling

Membrane properties refer to the physical and chemical characteristics of the membrane material, mainly including surface charge, hydrophilicity, hydrophobicity, pore size, and surface roughness. These properties affect the degree of membrane fouling to v

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What are the main organic pollutants in landfill leachate?

Since leachate is generated during waste burial, it is considered a secondary pollutant. It typically has characteristics of significant water quality fluctuations, a wide variety and complexity of organic substances, and the composition and concentration

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Current Status of Biotechnology in Landfill Leachate Treatment?

Using biotechnology to treat landfill leachate has many advantages, such as significant effectiveness, low investment, simple operation, etc. It is suitable for treating leachate with good biodegradability and is currently the most widely applied technolo

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How Many Hazards of Landfill Leachate Do You Know?

After waste is landfilled, under the degradation action of microorganisms, inorganic substances and low-molecular-weight organic substances produced by waste degradation, along with soluble organic matter from the waste, enter the leachate, resulting in e

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How is Landfill Leachate Generated?​​

Since the 21st century, with increasing urbanization and improvements in residents' living standards, people have become more concerned about environmental quality. At the same time, however, the amount of waste generated by residents is increasing. I

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What are the methods of chemical cleaning?

There are many methods of chemical cleaning. According to the type of chemical cleaning agents, they can be divided into alkaline cleaning, acid cleaning, surfactant cleaning, chelating agent cleaning, polyelectrolyte cleaning, disinfectant cleaning, orga

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How many types of membrane cleaning are there?

1.Physical Cleaning: This is a method of cleaning membranes based on mechanical principles. It includes high-pressure water jet cleaning, implosion and explosion cleaning, ultrasonic cleaning, dry ice cleaning, and laser cleaning. In water treatment, the

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Benefits and Timing of Membrane Cleaning​

Successful pretreatment can delay scaling on the membrane surface and protect the membrane material from damage by sensitive substances. However, over time, chemical and biological fouling still occur on the membrane surface. Therefore, regular cleaning i

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Prevention and Control Measures for Membrane Fouling in DTRO Operation

I. Reducing Feed Water pH:The pH of the solution affects not only the properties of solutes, such as their charge, but also the characteristics of the membrane surface. By adding sulfuric acid or hydrochloric acid to lower the feed water pH to 6.1–6.5, ca

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Fouling of Disc-Tube Reverse Osmosis (DTRO) Membranes

Membrane fouling refers to a phenomenon that occurs during the membrane separation process, where solid particles, colloidal particles, macromolecular solutes, inorganic ions, and microorganisms present in the wastewater interact with the membrane physica

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Discussion on Zero Liquid Discharge (ZLD) Technologies for Desulfurization Wastewater

Desulfurization wastewater is characterized by high salinity, complex composition, corrosiveness, and scaling tendency, making it difficult to reuse and becoming a key factor restricting the achievement of ZLD in coal-fired power plants. So, what ZLD tech

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