The project details:
The project: Sanitary landfill leachate treatment
The treatment process: Pretreatment and the STRO
The output water standard: Completed water production of 23,000 tons, and the effluent quality reached the limit value standard of Table 2 of the “Pollution Control Standard for Domestic Waste Landfill” (GB16889-2008)
The photos taken at site
The photos taken at site
The photos taken at site
The introduction of STRO treatment-Space tube reverse osmosis
STRO (Space Tube Reverse Osmosis) is a pipe network reverse osmosis sewage treatment equipment that combines the advantages of spiral membrane and disc membrane, has an open flow channel design, and has better pollution resistance than traditional spiral reverse osmosis membrane.
Working principle-The working principle of STRO is similar to that of spiral reverse osmosis membrane. It is driven by pressure to make water molecules pass through the membrane, while pollutants such as salt and organic matter are intercepted. Its membrane assembly adopts a spiral structure, and the internal grid channel is a trapezoidal structure. The resistance of wastewater is small when it flows in the grid. At the same time, the transverse reinforcement ribs can increase turbulence and reduce concentration polarization, thereby improving pollution resistance.
Equipment composition-STRO equipment usually consists of a feed pump, a booster pump, a membrane element, a piping system, a control system and a cleaning system.
Advantages-Strong anti-pollution ability: the open flow channel design can effectively avoid physical blockage and reduce scaling and pollution on the membrane surface.
High desalination rate: the desalination rate can reach 99% under standard test conditions.
Small footprint: the membrane assembly has a high filling density, which reduces the equipment footprint.
Easy maintenance: The membrane components are removable and easy to clean and maintain.
Application areas–STRO equipment is widely used in the following areas:
Leachate treatment.
High-salt wastewater treatment.
Industrial wastewater reduction and zero discharge.
Seawater desalination.
STRO is a highly efficient and anti-pollution reverse osmosis wastewater treatment equipment suitable for treating difficult wastewater.
We are professional factory and can do the customized service, please contact us for more details:
STRO vs DTRO
| Option | Notes |
|---|---|
| STRO | Tubular/pipe membrane, often chosen for high-fouling or high-COD leachate, typically used after pretreatment. |
| DTRO | Disc-tube high-pressure RO, also used for high-salinity or high-COD leachate, compact stack design. |
The final choice depends on the actual leachate analysis.
Frequently Asked Questions
What is STRO used for in leachate treatment?
STRO is a high-pressure reverse osmosis configuration used to treat high-COD, high-salinity leachate after pretreatment, producing a clear permeate and a concentrated reject stream.
How is STRO different from DTRO?
Both are high-pressure RO options for difficult leachate. STRO uses tubular membranes; DTRO uses a disc-tube stack. We select between them from your leachate analysis, fouling risk and recovery target.
Does STRO replace the need for pretreatment?
No. Equalization and pretreatment are still required to protect the membranes. The membrane train is the core concentration step, not a standalone plant.
Learn more about the containerized landfill leachate treatment system.
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