Mbbr Bio Filter HDPE Filter Media For Industrial Wastewater
Treatment
Product Description
Fluidized bed packing, also known as MBBR packing, is a new type of
bioactive carrier. It adopts scientific formula, according to
different water quality requirements, integrates different kinds of
Microelements in polymer materials, which are conducive to the
rapid growth of microorganisms. After special process modification
and construction, it has the advantages of large specific surface
area, good hydrophilicity, good fluidity, high biological activity,
easy to hang membrane, good treatment effect, long service life and
so on.
Principle of action of fluidized bed packing when sewage passes
through the fluidized bed packing reactor, microorganisms in the
water continuously adhere to and grow on the inner and outer
surfaces of the fluidized bed packing to form a biofilm. The fluid
bed packing rotates freely under the agitation of the mixed liquid
in the reactor. The biofilm fully contacts and decomposes the
pollutants in the water body, so that the water quality can be
purified. The turnover of mixed liquid and the movement of carrier
are realized by aerobic aeration or anaerobic agitation.
Characteristics
1. With high-quality copolymers, long-term immersion in waste water
will not degrade, nor will it have toxic effects on microorganisms.
2. Special structure, the hollow packing structure has three layers
of hollow circles inside and outside, each circle has one edge
inside and 36 edges outside. It has been successfully researched
and developed for many times and adopts one-time forming.
3. With high specific surface area, the specific surface area of
ordinary microorganism is 90-180, the specific surface area of
hollow filler can reach 600, and the double specific area can reach
more than 860. Because of the high specific surface area, the
biomass in unit volume is high, and the purpose of short hydraulic
retention time can be achieved.
4. High activity of microorganisms. The biofilm growing on the
surface of the packing is due to the fluidization collision of the
packing. Aeration scour makes the microorganism in the logarithmic
growth period with high activity and high treatment efficiency.
5. Hollow packing is floating type, easy to replace and long
service life.
6. The ability of denitrification and decomposition of organic
matter is strong, so as to achieve the purpose of removing ammonia
nitrogen
Discriminant index
1. Adhesion of biofilm
Adhesion capacity of biofilm - the most important index to evaluate
the quality of fillers: biological adhesion = protected surface
area (connected with the design of fillers
running state
running state
Structure related) × bioadhesion per unit surface area (related to
the performance of filler)
2. Filler performance
Performance of packing - the most important index to evaluate the
biological adhesion of packing
(1) Surface properties of fillers
1. Surface structure: it is generally considered that the surface
roughness is large and the film hanging speed is fast.
2. Surface potential: generally, microorganisms are negatively
charged, and the surface of filler is positively charged, which is
suitable for microbial growth. 3. Hydrophilicity: the microorganism
is hydrophilic particle, and the filler has good hydrophilicity and
is suitable for microorganism growth.
Film hanging state
Film hanging state
(2) Hydraulic properties
1. Porosity: volume occupied by filler, high porosity.
2. Shape and size: affect the flow pattern of water and air flow.
(3) Fluidization performance: it is related to the density of
filler. The density of the packing should be 0.97-1.03, and
fluidization can be achieved with less aeration or agitation.
Technology Parameter
| Type | Hole number | Density | Packing numbers | Menbrane-forming time | BOD5 Oxidation efficiency | Applocable temperature |
| PE05/K3 | 19 | 0.96-0.98 | >97000 | 3-15days | 2000-10000 | 5-60℃ |
| Size | Effictive surface | Porosity | Dosing Rate | Nitrification efficiency | COD Oxidation efficiency | Life-span |
| 25*12mm | >500 | >90 | 15%-68% | 400-1200 | 2000-15000 | >15years |
