K1 MBBR Filter Media Biofilm Carrier For Water Treatment Made Of
HDPE
Product Description
Biofilm reactors are divided into fixed bed and flow bed. In the
fixed bed, the biofilm carrier is fixed. In the traditional sewage
treatment system, the main technology is the fixed bed biofilm
technology. However, there are some problems in the traditional
fixed bed biofilm process, such as less effective contact between
microorganisms and sewage, easy blockage of filter material,
periodic back washing, and difficult replacement of fixed packing
and aeration equipment under packing. In recent years, the
performance and stability of MBBR have been improved continuously,
which has become an important technology of sewage treatment.
It not only integrates the advantages of activated sludge process
and biofilm process, but also overcomes the disadvantages of both.
It has the advantages of high processing capacity, low energy
consumption, no blockage, compact structure, no sludge reflux,
simple maintenance and management.
Biological treatment conditions
Anaerobic tank: Banana agitator is used to rotate the tank body at
a low speed, so that the filler can form a fluid in the tank body.
Aerobic tank: through continuous aeration. More aeration can
shorten the time needed for biological treatment.
Water retention time: the longer the wastewater stays in the
reaction tank, the more thorough the treatment. However, when the
COD of sewage is relatively low, the treatment efficiency will also
decline.
Water temperature: generally, the biological activity is relatively
high. When the water temperature drops below 12 ℃, the treatment
capacity can be maintained by increasing the aeration capacity.
Aeration capacity: the increase of aeration is beneficial to the
rapid growth of heterologous organisms and the denitrification of
inner denitrifying bacteria.
Technology Parameter
| Type | Hole number | Density | Packing numbers | Menbrane-forming time | BOD5 Oxidation efficiency | Applocable temperature |
| PE02/K1 | 4 | 0.96-0.98 | >830000 | 3-15days | 2000-10000 | 5-60℃ |
| Size | Effictive surface | Porosity | Dosing Rate | Nitrification efficiency | COD Oxidation efficiency | Life-span |
| 11*7mm | >900 | >85 | 15%-68% | 400-1200 | 2000-15000 | >15years |
Disadvantages of low price fillers
As we all know, filler is the core of MBBR Process. Therefore, the
performance of the filler directly affects the difficulty of
membrane hanging, the amount of biomass in the reactor and the
treatment effect of the reactor.
For low-cost fillers, the factory may use recycled materials, or
the wall thickness is very thin, or add fillers such as calcium
carbonate. During the operation, with the passage of time, the
agitator stirs, the fillers may be broken in the reaction tank.
However, the filler is a kind of non degradable material, which is
difficult to clean in the reaction tank, but becomes a kind of
pollution.
