Current Status of Landfill Leachate Treatment Using Biotechnology

​The use of biotechnology for landfill leachate treatment offers many advantages, such as significant effectiveness, low investment, and simple operation. It is suitable for treating leachate with good biodegradability and is currently the most widely used technology. Generally, there are three common methods for biolo……

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Working Principle of Disc-Tube Reverse Osmosis (DTRO)

Disc-Tube Reverse Osmosis (DTRO) is a form of reverse osmosis technology where the disc-tube membrane modules feature a special open channel design. The feed fluid enters the DTRO membrane column through the inlet, flows through the channel between the guide discs and the column housing to the other end, where at the f……

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Characteristics of the Disc-Tube Reverse Osmosis (DTRO) System?

1.Treatment efficiency is independent of influent biodegradability:Stable system operation, high-quality effluent.2.Treatment efficiency is independent of pretreatment:The open flow channel can treat wastewater with high colloidal and suspended solids con

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Factors Affecting the Treatment Efficiency of DTRO Process (Part 2)​

1. Operating PressureOperating pressure consists of osmotic pressure and the pressure drop of the net driving force. Osmotic pressure is related to the salt content and temperature of the feed water, but is independent of the reverse osmosis membrane. The

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Factors Affecting the Treatment Efficiency of DTRO Process (Part 1)

1. Influent pH ValueThe ammonia nitrogen content in landfill leachate is very high, and how to effectively remove ammonia nitrogen has always been a challenge in leachate treatment. The DTRO membrane has a very low rejection rate for free ammonia. Therefo

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What Problems Are Encountered When Treating Municipal Solid Waste (MSW) Leachate?​

Based on the current status of MSW leachate treatment in China, there are mainly three aspects of problems:1.Problem of Activated Sludge Treatment Efficiency: Leachate is a high-concentration organic wastewater. Theoretically, using biological treatment p

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Classification of Membrane Fouling

1. By Form of Fouling:Membrane Pore Blocking: Caused by small molecular substances.Gel Layer on Membrane Surface: Formed due to concentration polarization of large molecular substances.Sludge Cake (Filter Cake): Deposition of particulate matter.Floating M

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How to Perform Physical Cleaning of Membranes?

Physical cleaning refers to methods of cleaning membranes based on mechanical principles, mainly including hydraulic cleaning, ultrasonic cleaning, and gas pulse cleaning. Physical cleaning technology does not change the molecular structure of pollutants,

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Influence of Feed Water Quality on Membrane Fouling

The quality of landfill leachate feed water is complex and varies significantly with seasons and climatic conditions. Research indicates that feed water quality has a crucial impact on membrane fouling. Identifying the types of pollutants in the feed wate

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Influence of Membrane Module Design on Membrane Fouling​

A membrane module is a device that assembles a certain area of membrane in a specific form. When the membrane material and structure are the same, different module designs result in varying membrane operational efficiency and fouling resistance. For all m

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Why is Membrane Cleaning Necessary?

Membrane cleaning is performed to remove deposits on the membrane surface, restore and enhance its permeability, which can be regarded as the reverse process of membrane fouling. Effective membrane cleaning not only ensures the continuous operation of the

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Why is Membrane Cleaning Necessary?

Membrane cleaning is performed to remove deposits on the membrane surface, restore and enhance its permeability, which can be regarded as the reverse process of membrane fouling. Effective membrane cleaning not only ensures the continuous operation of the

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