What are the Benefits of MBR for water and wastewater treatment?
Membrane bioreactors are employed globally for both municipal and industrial wastewaters. In a range of industrial sectors, including food, petrochemicals, pharmacy, electronics, laundries, paper, textile, agricultural, percolate waters from disposal sites, and hospitals, MBR has numerous full-scale applications for industrial wastewater.
Other industries where MBR may be used include metal processing, refineries, the processing of finished oil, sludge from wastewater purification, car body repair and car body companies, car and truck washes, the graphics industry, tank and barrel cleaning, paint, glaze, varnish, and printing ink production, etc.
Benefits of Membrane biological reactors (MBRs) for water and wastewater treatment
The advantages of membrane bioreactors over other wastewater technologies are commonly accepted. However, in general, MBRs:
· Allowsthe HRT and SRT to be decoupled
MBRs allow it in order to produce high-quality effluent, with a small environmental impact and improved bio-treatment.
· Separating SRT and HRT
The total retention of the biological solids (mixed liquor or sludge), in the bioreactor is a key benefit of the membrane bioreactor method. This means that the bioreactor's solids retention time (SRT) can be managed separately, from its hydraulic retention time (HRT).
The concentration of biological solids increases with an increase in the SRT, or the period of time the biological solids are kept in the bioreactor.
· Superior effluent
The treated effluent has a much lower pathogen concentration, due to the membrane's small pore size (0.5 m).
The effluent produced by MBR procedures is sufficiently cleared and disinfected, to be discharged to sensitive receiving bodies, or to be reclaimed for uses like urban irrigation, utilities, or toilet flushing. Additionally, it is of a high enough calibre to be fed directly into a reverse osmosis system.
· Limited footprint
The plant footprint is impacted by the retention of the solids in the reactor, and the increase in SRT to produce larger biomass solids concentrations. The footprint is reduced because, the greater concentrations result in the same total mass of solids being trapped, in a smaller container.
· Improved bio-treatment
Last but not least, longer solids retention durations typically result in better bio-treatment all around. The environment favours the growth of nitrifiers, which are slower-growing microorganisms. MBRs are very good at biologically removing ammonia, also known as "nitrification".
MBR technology is increasingly the preferred option for water and wastewater applications, where high quality treated water is required or where space is at a premium.
MBRs have now been adopted in more than 200 nations, and various market evaluations frequently report global market growth rates of up to 15%. With more plants exceeding 100 MLD in capacity, confidence in the process still seems to be growing, as the number and size of reference installations increases.
How can we assist?
For the client's project, the system designers at Netsol Water will be able to examine all input and output requirements, and choose the most practical and effective MBR treatment system, for your wastewater treatment.