移床式生物載體過濾反應器

Principle for biological carrier filtration reactor of movable bed-type

The Bio-Filter Reactor (DBF, Dynamic Bio-Filter Reactor) can be designed to form a bioadsorption reactor or a biological desulfurization and denitrification reactor. Biochemical reactor is built for simultaneous biodegradation, carrier filtration, and carrier cleaning capability.

It is combined with UFBR or IC bioreactor to form a two-phase high-efficiency treatment system with biosorption, which leads to high efficiency, energy saving and excellent effluent quality.

MAIN FEATURES OF THE REACTOR

(1) Bio-absorption ability

Adsorption of microorganisms on biological carriers – in a state of high-speed proliferation, can effectively remove 4560% of BOD in sewage. It has strong ability to coagulate, adsorb and degrade organic matter, and can absorb suspended solids and colloidal organic pollutants in sewage.

(2) Sedimentation basin and sludge refund will not be needed

The bio-carrier in the reactor has the function of filtering and decomposing organic contaminants, so the sedimentation basin will not be needed.

(3) No sludge puffing

The biosorption on the surface of the carrier forms a stable bio membrane and a complete bio-chain, it has strong adaptability to environmental variability. The system does not cause system failure due to sludge puffing in environmental variation.

(4) Modularized structure system

The system does not require a sedimentation basin, which is the key to solving the modularization of biological treatment systems. Its advantages are:
(1) It can easily be flexable in settling and expansion according to its quantity of water.
(2) The biological system can continue to operate during maintenance.

(5) Low operating energy consumption

The gaseous liquid contact of the surface is large, which greatly reduces the consumption requirement for aeration (50~60% of the traditional activated sludge treatment method). The carrier has the function of cutting bubbles and diffusing, and has high oxygen transmission efficiency, also the sludge load is up to 2-6 kg.BOD/KgMLSS-d. In addition, there is no need to refund sludge to maintain fixed biomass, meanwhile, a large amount of electricity for processing is saved.

Technical characteristics

Traditional biological treatments (activated sludge process, oxidized deep channel or SBR) have the following drawbacks:

(1) It is prone to sludge bulking, which causes the treatment system to fail.
(2) The volumetric load is low (only about 0.5 kg/m3), and the treatment efficiency is low.
(3) Large area.
(4) High operating energy consumption.
(5) Not resistant to impact load.

This technology reforms the above-mentioned shortcomings and creates a biological treatment system with high efficiency, stable operation, good effluent quality and no secondary pollution:

1. No need for sedimentation tanks, modularization of processing systems

MIC anaerobic bioreactor, ICFB biological fluidized bed and DBR biological filtration reactor are modular reactors. Various types of wastewater characteristics are combined into a highly efficient biological treatment system for high-concentration organic wastewater, high-concentration nitrate wastewater,Treatment of high ammonia nitrogen wastewater and high concentration sulfate wastewater.

2. Small footprint, no odor

The floor space is 1/3 to 1/2 of the traditional treatment system, and the reactors are all airtight and will not produce odor during operation.

3. No blower, no noise problem

The aerobic aeration of the treatment system uses high-efficiency negative pressure jet aeration, no need to set the blower, and there is no noise problem.