Sewage treatment plant is a process which separates contaminants or unwanted dissolved materials from waste-water. There are various sewage treatment plants for different purposes. Each has their own process to treat wastewater.
Let us discuss the difference between SBR, MBR, and MBBR Sewage Treatment Plants today.
SBR Sewage Water Treatment Plant (SBR-Sequencing Batch Reactor) – is an activated sludge process used for waste-water treatment. To reduce the organic matters, oxygen is bubbled through the mixture of waste-water and activated sludge.
MBR Sewage Water Treatment Plant (MBR-Membrane Bio Reactor) – is the combination of the membrane process and a biological waste-water treatment process. It is one of the most widely used processes.
MBBR Sewage Water Treatment Plant (MBBR-Moving Bed Biofilm Reactor) – is a biofilm process which requires less space than activated sludge systems. This process was invented in the late 1980s.
MBR and SBR sewage water treatment systems are type of activated sludge process. But when we talk about differences – the method used in both the processes to separate the liquid from the treated waste-water is different. The technology used by SBR is phase separation that is gravity setting method, while MBR uses the membrane – and the use of a physical barrier for separation gives more importance to this process as it increases the advantages.
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Footprint
The other difference is the ability of the sewage treatment plants to operate at high biomass concentrations (MLSS). The MBR treatment plant is considered to overpower others here as it operates at an MLSS of around 12,000 mg/l. On the other hand, the SBR treatment plan works at 3,000 mg/l. Advantages that MBR provides because of this is it takes smaller process basins as compared to others – overall resulting in smaller plant footprint (around 50-70%) as compared to SBR process.
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Less Turbidity
Less turbidity is a sign of clean water. MBR has less than 0.2 NTU effluent turbidity – Another benefit that MBR provides. It reduces the burden on the ultimate disinfection system. At the time of operation, the membrane opening is less than 0.1μm – and without dis-infection it has the capacity to achieve 6-log dismissal of bacteria and 3-log of virus. SBR system cannot get values this low. Here, the usual membrane opening is 10μm which is quite large.
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Easy Operation Process
MBR requires less involvement of the operators as the process is quite easy. Many of the plants require operators to keep an eye on the task of settling characteristics of the sludge – keeping in mind all the factors involved here. along with the analysis, adjustments have to be made to keep it settled. Lack in this process can affect the effluent quality.
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Less Water Sludge
Other difference is the amount of waste sludge produced by the plants. Again, because of the ability to operate at much higher sludge retention time, the MBR system tops the chart with lesser waste sludge than SBR.
When we talk about the MBBR process – it requires less space than the activated sludge systems because of the concentrated biomass. Moreover, the efficiency of the system is less dependent on the final sludge separation. Unlike activated sludge systems, MBBR does not require recycling of the sludge. Other advantages include – high effective sludge retention time and lower sludge production.
We see some difference in the treatment plants. However, if there are no restrictions on the footprints and a project doesn’t require any reuse – SBR is a good system. It is cost-effective and takes care of the process required. On the other hand, for reduced footprint and higher quality effluent, MBR is considered the better choice. While MBBR is also a consideration for many municipal and industrial waste-water treatment processes.
We Offer All Types of Sewage Treatment Plants
At Cleantech water, we have a wide range of water treatment products including wastewater treatment plants. We strive to provide high-quality products and reliable solutions to our clients.
If you are looking to buy SBR, MBR, or MBBR sewage treatment plant, call us at +91-9558996411 or +91-7935660299 for more details.
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What is MBR Sewage Treatment Plant?