A membrane bioreactor is a wastewater treatment technology that combines biological methods with membrane-based filtration. Today, this industrial wastewater treatment method is increasingly used because it offers several advantages.
This article discusses the definition of a membrane bioreactor and its benefits for the industrial sector. So, read to the end to learn more.
What Is a Membrane Bioreactor (MBR)?
A membrane bioreactor is a technology that adds membrane filtration, such as microfiltration or ultrafiltration, into the biological treatment stages to improve wastewater treatment performance.
The filtration membrane captures solid materials produced during the biological process so that the water becomes clearer. MBR can maintain biomass, allowing the biological reactor to operate at high biomass concentrations to produce high-quality effluent.
How a Membrane Bioreactor Works
In general, a membrane bioreactor (MBR) implements two main stages, namely filtration and biological treatment. Wastewater is biologically treated by microorganisms in the aeration bioreactor.
Then, the treated water passes through a membrane that only allows clean water to pass through. That means microorganisms and solid materials are retained by the membrane. This combined method can produce clearer wastewater in a shorter time and with a more efficient process.
MBR works based on several key characteristics, including high biomass concentration, compact design, and efficient solid-liquid separation.
The membrane functions to block solids as the liquid passes through it. The MBR system can operate in a limited space because this technology eliminates the need for a secondary clarifier.
Furthermore, MBR has two main configurations, namely the submerged membrane bioreactor and the side-stream membrane bioreactor. In the submerged membrane bioreactor, the membrane is immersed in the biological reactor so that contaminants are filtered directly as wastewater passes through it. Meanwhile, in the side-stream membrane bioreactor, the membrane is placed outside the biological reactor, so the water needs to be pumped in order to pass through the membrane.
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Why Are Membrane Bioreactors Suitable for Industry?
Industries produce wastewater every time they carry out manufacturing processes. This wastewater needs to be treated effectively to be safe when returned to the environment. Membrane bioreactors (MBRs) are considered effective at treating wastewater. Besides that, here are a few reasons why MBRs are suitable for use in the industrial sector:
1. More Space- and Cost-Efficient
MBRs are considered more space- and cost-efficient because they don’t require a secondary clarification system and can be installed in tight areas. This contrasts with traditional wastewater treatment systems, which need large clarification systems and tanks.
2. Helping to Comply with Environmental Regulations
Wastewater discharged into the environment must meet the applicable regulations. To achieve this, you can use MBR because of its efficient performance in treating wastewater. Its quality can also meet the established standards.
3. Increasing Water Recycling Opportunities
Water treated with a membrane bioreactor, which is clearer and of better quality, can be reused for manufacturing needs other than drinking water.
4. Having Consistent Performance
Some industries may produce wastewater in inconsistent amounts. Even so, MBR can adjust to the load and amount of wastewater and deliver consistent results.
Membrane Bioreactor Applications
Membrane bioreactor (MBR) can be used in various sectors, such as urban infrastructure and industry. Here are some MBR applications you should know about:
- Industrial wastewater treatment: Industrial wastewater usually has high levels of specific contaminants and is difficult to treat. That's why MBR can be a good choice. MBR can also remove nitrates and Endocrine Disrupting Chemicals (EDCs) more effectively than conventional wastewater treatment.
- Urban wastewater treatment: MBR is chosen because it saves space and is ideal for recycling wastewater.
- Landfill leachate treatment: MBR can be used to treat leachate from landfills, specifically to remove heavy metals and inorganic components.
- Decentralized wastewater treatment: MBR is suitable for areas far from city centers and where access to technology for treating local wastewater is limited.
Read also: Industrial Wastewater Treatment: Definition and Process
Reliable Industrial Wastewater Treatment Services from CDI
To operate well and meet regulations, companies need to treat clean water and wastewater optimally while leveraging technology to produce high-quality effluent.
If your company needs reliable industrial wastewater treatment services, PT Chandra Daya Investasi Tbk (CDI) can be your trusted #YourGrowthPartner. Through PT Krakatau Tirta Industri (KTI), CDI offers wastewater treatment solutions, including Water Recycle Plant (WRP) facilities and Operation & Maintenance (O&M) services. KTI also provides wastewater treatment facilities using membrane bioreactor technology through PT Krakatau Blue Water (KBW).
So, don’t hesitate to rely on CDI and KTI for your company’s industrial water and wastewater treatment needs!
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