Good Quality Film Bio Filter Media Carrier Mbbr
Product describe：
Oxygen required for the process is provided through the diffusers installed at the bottom of the reactor. The treated wastewater then flows through the screens to the downstream clarifier where the biomass and solids are separated from the wastewater.
Tube settlers which are also known as plate settlers or lamella clarifiers are used in drinking- and wastewater treatment plants to settle out suspended solids. Depending on the application the TSS (total suspended solids) loading can vary between 50 to 500mg/l or more. When the solid settling force is higher as all drag forces, solids will settle down on the channel surface of the tube settler, accumulate with other solids and slide down as sludge.
Rusten et al. [5] used a MBBR pilot plant to treat dairy wastewater, reaching COD removal efficiencies above 85% for organic loads up to 500 g CQO/m3 h and a hydraulic retention time (HRT) of 7 h. A MBBR was also used to treat paper mill wastewater [6] with an organic matter removal efficiency of 98.7%. Vaidhegi [7] analyzed the same type of effluent and observed a maximum degradation when using 50% of FR in 8 h, pointing out that the filling ratio is an important factor because the organic removal depends on the biomass attached to the biocarriers. De Oliveira et al.
There you have it. Four misconceptions about MBBR in wastewater treatment. Hopefully, this clears things up for those that need it.
We are a big manufacturer and supplier of MBBR media, bio media, fab media, bio media and reactors media.
The MBBR system is considered a biofilm process. Other conventional biofilm processes for wastewater treatment are called trickling filter, rotating biological contactor (RBC) and biological aerated filter (BAF). Biofilm processes in general require less space than activated sludge systems because the biomass is more concentrated, and the efficiency of the system is less dependent on the final sludge separation. A disadvantage with other biofilm processes is that they experience bioclogging and build-up of headloss.
MBBR systems don't need a recycling of the sludge, which is the case with activated sludge systems.
The MBBR system is often installed as a retrofit of existing activated sludge tanks to increase the capacity of the existing system. The degree of filling of carriers can be adapted to the specific situation and the desired capacity. Thus an existing treatment plant can increase its capacity without increasing the footprint by constructing new tanks.
Product Advantage:
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Minimum Area required
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Less manual intervention
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Nominal price
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Easy to handle and Easy to stabilize
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Minimum sludge production
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Lower sludge production
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High efficiency and performance
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Bod and Cod reduced to greater extend
AquaSust MBBR:
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The advantages and disadvantages of MBBR
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Advantages |
Disadvantages |
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(1) Packing characteristics The fillers are mostly made of polyethylene, polypropylene and their modified materials, polyurethane foam, etc. The specific gravity is close to that of water, mainly cylindrical and spherical. It is easy to hang the film, does not agglomerate, does not block, and is easy to peel off. (2) Good denitrification ability An aerobic, anoxic and anaerobic environment is formed on the packing, and nitrification and denitrification reactions can occur in one reactor, which has a good effect on the removal of ammonia nitrogen. (3) Good effect of removing organic matter The sludge concentration in the reactor is relatively high, and the general sludge concentration is 5-10 times that of the ordinary activated sludge method, which can be as high as 30-40g/L. Improve the efficiency of organic treatment, and strong impact load resistance. (4) Easy to maintain and manage There is no need to install filler brackets in the aeration tank, which facilitates the maintenance of the filler and the aeration device at the bottom of the tank, and saves investment and floor space at the same time. |
(1) The filler in the reactor is in a fluidized state by the lifting effect of aeration and water flow. In actual engineering, the phenomenon of local filler accumulation is prone to occur. In order to avoid packing accumulation, it is necessary to improve the arrangement of the aeration pipeline and the structure of the reactor. The structure of the reactor largely determines its hydraulic characteristics. In actual engineering, when the aspect ratio of a single reactor is about 0.5 and the length is not more than 3m, it is beneficial for the filler to move completely. In actual engineering design, a large number of experiments should be conducted to optimize the structure and hydraulic characteristics of the reactor, reduce energy consumption, and further improve the economic benefits of MBBR. (2) The effluent of the reactor is often equipped with grids or grids to avoid the loss of fillers, but it is easy to cause blockage. In the actual project, movable grids can be set up for regular manual cleaning, or an air blowback device can be set up to prevent clogging. |
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