3000tpd Sewage Treatment System, MBR Membrane, River/Hospital/Rural
MBR sewage treatment is a common method of modern sewage treatment. It
adopts membrane bioreactor (Membrane Bioreactor, referred to as
MBR) technology, which is a new technology that combines biological
treatment technology and membrane separation technology, which
replaces the two in the traditional process. Sedimentation tank,
which can efficiently separate solid and liquid to obtain stable
reclaimed water for direct use. It can also maintain a high
concentration of microbial biomass in the biological tank, with
less residual sludge in the process, and extremely effective
removal of ammonia nitrogen, effluent suspended solids and
turbidity Close to zero, the bacteria and viruses in the effluent
are greatly removed, the energy consumption is low, and the area is
small. In the 1970s, membrane bioreactors have been used for sewage
and wastewater treatment in the United States, Japan, South Africa
and many European countries. Work. The water source is taken from
domestic sewage (such as shower drainage, toilet drainage, laundry
drainage, kitchen drainage, toilet drainage, etc.) and cooling
water.
Process flow:
Raw water → grille → regulating tank → lifting pump → bioreactor →
circulating pump → membrane module → disinfection device →
reclaimed water storage tank → reclaimed water water system
Process characteristics
Membrane biological treatment technology is applied to wastewater
recycling and has the following characteristics:
(1)Solid-liquid separation can be carried out efficiently, and the
suspended matter, colloidal matter, and microbial flora lost by the
biological unit in the wastewater can be separated from the
purified water. The separation process is simple, occupies a small
area, and the effluent quality is good. Generally, it can be reused
without tertiary treatment.
(2)The biomass in the biological treatment unit can be maintained
at a high concentration, which greatly increases the volume load.
At the same time, the high efficiency of membrane separation
greatly shortens the hydraulic residence time of the treatment unit
and reduces the area of the bioreactor accordingly.
(3)Because it can prevent the loss of various microbial flora, it
is conducive to the growth of slow-growing bacteria (nitrifying
bacteria, etc.), so that various metabolic processes in the system
can proceed smoothly.
(4)Make the residence time of some macromolecules difficult to
degrade organics longer, which is beneficial to their
decomposition.
(5)Membrane treatment technology is the same as other filtration
and separation technologies. In the long-term operation process,
the membrane is blocked as a filter medium, and the water flow rate
of the membrane gradually decreases during the operation time.
Effective backwashing and chemical cleaning can slow down the
membrane flux. The decline in the MBR system maintains the
effective service life of the MBR system.
(6)MBR technology is applied in urban sewage treatment. Because of
its simple process and convenient operation, it can realize fully
automatic operation and management.
Scope of application
Residential districts, office buildings, shopping malls, hotels,
restaurants, offices, schools, troops, factories and other domestic
sewage and similar industrial organic wastewater, such as textile,
beer, paper, leather, food, chemical and other industries
