What are the advantages and disadvantages of Membrane Bioreactors?

Organic molecules (COD and BOD), suspended matter (SS), nutrients (nitrogen and phosphorus), and bio-accumulative or bio-degradable micro-contaminants are all targets for MBR technology.

Role of Membranes in Membrane Bioreactors

Membrane filtration is linked to a biological active sludge system by a membrane bioreactor. In traditional biological purification, the membranes help to separate the sludge from the effluent by replacing the sedimentation basin. This ensures that all floating materials is kept, and sedimentation is no longer a sludge concentration limiting factor. In comparison to conventional systems, a membrane reactor can process substantially greater sludge concentrations (10 to 20 g/l) while using significantly less reactor volume.

Placement of membranes in MBR systems

The membranes can be positioned outside or inside the biological basin (external or separate system) or inside the basin (internal or submerged system). Continuous cross-flow circulation along the membranes is required in external systems. This is accomplished using both tubular and flat plate membranes. Hollow fibres or flat plate membranes are commonly used in this process.

Advantages and Disadvantages of MBR Systems

When compared to traditional active sludge systems, MBRs from Netsol Water Solutions offer the most significant advantages:

1: Higher sludge concentrations of 10 to 20 g/l can be treated, resulting in a more compact system and a faster rate of degradation, thanks to the optimization of the sludge retention period.

2: In terms of suspended matter content, pathogenic bacteria, and COD, the effluent quality is excellent.

The quality of effluent is frequently so high that:

1: In sensitive places, discharge is conceivable;

2: The expense of the levy is decreased;

3: It is feasible to use it directly as process water in a variety of applications;

4: For the removal of salts or resistant organic compounds, direct post-purification through reverse osmosis or nanofiltration is conceivable.

Due to the obvious high sludge contents and rate of breakdown, the biomass has a very high oxygen demand. However, the thick sludge mass (high viscosity) makes oxygen transmission difficult. It is suggested that modern aeration systems with excellent oxygen transport should be used.

What should be the goal of MBR Systems?

Although the goal should be to achieve a healthy sludge structure, the sedimentation capacity of the sludge is no longer an issue. A lack of nutrients or oxygen, as well as over- or under-loading of the sludge and severe shear stress, can cause the sludge flake to disintegrate, thread-formers to appear, and slime components to be discharged. As a result, membrane contamination occurs more quickly, and fluxes decrease.

Where can be MBR systems employed?

Membrane reactors are utilized for both industrial and municipal wastewaters all over the world. Few examples of full-scale industrial wastewater applications are:

-  Food,

-  Chemicals (petro),

-  Pharmacy,

-  Electronics,

-  Laundries,

-  Paper & textile,

-  Agriculture,

-  Abattoirs,

-  Percolate waters from disposal sites, and

-  Hospitals.

Other industries where MBR could be used are-

1:Processing of finished oil,

2: Sludge from wastewater purification,

3: Car body repair,

4: Car body companies,

5: Car and truck wash,

6: The graphics industry,

7: Tank and barrel cleaning,

8: Paint, glaze, varnish, and printing ink production,

9: Foundries,

10: Metal processing, and refineries

If you want to know more about Netsol’s range of Membrane Bioreactors, thenyoucan have an expert solution upon contacting Netsol Water, a leading manufacturer of Industrial and Commercial Water Treatment Plants and Wastewater Treatment Plants, among other services. Our treatment systems are very effective at removing all types of chemical, physical, and biological pollutants.

Netsol Water is Greater Noida-based leading water & wastewater treatment plant manufacturer. We are industry's most demanding company based on client review and work quality. We are known as best commercial RO plant manufacturers, industrial RO plant manufacturer, sewage treatment plant manufacturer, Water Softener Plant Manufacturers and effluent treatment plant manufacturers. Apart from this 24x7 customer support is our USP. Call on +91-9650608473, or write us at enquiry@netsolwater.com for any support, inquiry or product-purchase related query.