2020 is here and industries are gearing up for a truly
sustainable future. Green initiatives
have become a strong part of the consensus and various new technologies have
emerged to replace the conventional ones in every aspect… especially in
wastewater treatment.
Wastewater treatment is a major influencer of the
environmental changes that we are witnessing today. The amount of water retained is itself a big
topic of discussion when it comes to conserving earth’s resources. Apart from
that, there are various factors like energy consumption and effluent quality,
that decide the wastewater
treatment plant’s eco-friendliness and future dependability.
Membrane Bioreactor
When we think of the future, we need to think long ahead.
Something that can prove to be truly viable for this decade and decades to
come. Membrane Bioreactors have proven to be a suitable choice to build the
wastewater treatment plants of the new world.
MBRs have been in use for quite some time and have become extremely
popular over the last couple of years.
Membrane bioreactor is the combination of a membrane
process like microfiltration or ultrafiltration and a biological wastewater
treatment process. It is now widely used for municipal and industrial
wastewater treatment. When used with domestic wastewater, MBR processes can
produce effluent of high quality enough to be discharged to a coastal surface
or into waterways. They offer a plethora of benefits and show very promising
results in terms of water retention and future dependability
Here are 5 advantages of Membrane Bioreactors
1.
Independent
SRT Control:
A significant advantage of the membrane
bioreactor process is that the biological solids (mixed liquor or sludge) are
completely retained in the bioreactor. This means the solids retention time
(SRT) in the bioreactor can be controlled independently from the hydraulic
retention time (HRT).
2.
Smaller
Footprint:
Along with the environmental challenges
linked with wastewater treatment, a big underlying challenge is the area of land
required. A typical wastewater
treatment plant consumes a lot of space, due to which it is
becoming more and more difficult to build one in metro areas. That’s where MBRs
help us the most as they can be erected in small spaces. The increased
concentrations of the biomass solids allow the plant to operate with small
footprints.
3.
High
Effluent Quality:
MBRs consist of filtration membranes of small
pore size (<0.5 µm). This means that the treated effluent is of very high
clarity and contains significantly reduced pathogen concentration compared with
the classic activated sludge (CAS) process. Due to this, MBR processes can
generate a substantially purer effluent which can be reclaimed and reused for
applications such as urban irrigation, utilities or toilet flushing.
4.
Proper
biological treatment
The anaerobic process in MBR works as a
secondary treatment for wastewater. This process uses bacteria and other
microorganisms to break down waste solid into finer particles. This allows for
easy collection and management of decomposed waste.
5.
Lower
oxygen demand
The presence of membrane ensures certain
macromolecular metabolites are screened out and gradually degraded. This
generates a final chemical oxygen demand that is lower than that
achieved with classic activated sludge.
Membrane Bioreactors are definitely on the path to
becoming the top alternative CAS plants. The global market share of MBR is
expected to go up to 3.8 Billion USD by the year 2023. With the ongoing
industrializations and rapid development schemes, India will too witness a
staggering rise in the demand for MBRs in various cities.
Praj Industries is a
prominent name in wastewater treatment landscape and a major manufacturer of
MBR systems. It also one of the leading Heat
exchanger suppliers in India. It offers highly advanced and
reliable solutions for bioenergy, high-purity systems, Distillation
Columns and more. To learn more about their products, visit
their websiteà www.praj.net 
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