What’s the difference between MBR and MBBR?

What’s the  difference between MBR and MBBR?

With global warming, more and more ecological environmental problems are gradually exposed. The establishment of a large number of factories and the rapid development of industrialization, on the one hand, promote the process of global economy, on the other hand, industrial waste water has greatly aggravated Marine pollution and ecological environment.Since the founding of New China, the total amount of water resource in our country has shown a downward trend along with the sustained and rapid development of Chinese economy and the unceasing process of urbanization and industrialization. According to the forecast of the Ministry of Water Resources, by 2030, China's population will increase to 1.6 billion, the per capita water resources will be reduced to 1,760 cubic meters, and the total water shortage will reach 40 to 50 billion cubic meters, reaching the world recognized water shortage warning line.

I believe you have heard of MBR sewage treatment, MBBR sewage treatment, what are these? What's the difference? MBR, also known as membrane bioreactor, is mainly used to replace secondary sedimentation tank, maintain a higher concentration of activated sludge in the bioreactor, reduce the area of sewage treatment equipment, reduce the sludge volume by maintaining a low sludge load, and MBBR refers to carrier fluidized bed biofilm technology, The principle is to increase the biomass and biological species by adding some suspended carrier to the reactor, so as to improve the treatment efficiency of the reactor.

Well, one must ask, which is better? From the two aspects of cost operation and maintenance, MBR membrane life is 4-5 years, with the advantage of short replacement cycle, but on the other hand, someone needs to carry out special maintenance and maintenance of membrane components, daily operation management needs to carry out chemical cleaning, off-line cleaning and other maintenance work, operation management is more difficult. And the cost is high, the average cost of maintenance and replacement of membrane assembly is more than one million per year. MBBR is the need to strengthen the filler, increase the input, this way although the early investment cost is high, but the later operation and maintenance is simple, vigorously reduce the time cost of investment and reduce the pressure of maintenance. Finally, from the filtration effect, MBBR has a good effect on the removal of total nitrogen, and MBR has a good effect on the removal of Suspended Solids.

So what exactly is MBBR biofilm technology?

In MBBR process, a certain amount of suspended filler (biofilm carrier) is added to the reactor. In the protected area of the filler, different microorganisms are concentrated on the biofilm. Some anaerobic or facultative bacteria grow inside the carrier, and aerobic bacteria grow outside. Each carrier is a micro-reactor that ensures extensive and frequent contact between the wastewater and the biofilm on the carrier, either by blowing aeration in an aerobic treatment system or by stirring in an anaerobic treatment system. Improve the mass transfer efficiency of the system, strengthen the renewal of biofilm microorganism, maintain and improve the activity of biofilm. The suspension carrier and the original activated sludge formed a more complex complex ecosystem. The biofilm attached to the carrier greatly increased the active biomass in the reactor. Under the joint action of suspended activated sludge and biofilm on the surface of suspended carrier, the anti-impact load capacity of the system is greatly improved, and the efficiency of wastewater treatment and the ability to stabilize effluent quality are achieved.

What are the advantages of MBBR?

1. Rapid carrier film hanging mechanism

The integration of specific trace elements in the carrier and the special surface treatment technology promote the microorganisms in the corresponding water body to attach quickly on the carrier and multiply and grow rapidly, forming a biofilm. The membrane hanging progress varies with different water quality and conditions, and generally it takes 3-15 days to hang the membrane.

2. Super dephosphorization, ammonia and nitrogen removal ability

The carrier provides a comfortable and safe environment for the mass propagation of microorganisms. Not only are the biological species rich, but also nitrifying bacteria proliferate on a large scale because they are not restricted by the age of mud. The huge microbial community makes the organic matter and ammonia nitrogen in the water decompose rapidly.

3. Excellent load impact resistance and long service life

Efficient processing capacity, strong load impact resistance. MBBR biological filler modified by special technology, wear resistance, UV resistance, toughness, not easy to aging brittle, has a long service life.

4. Flexible and diverse engineering application methods, simple operation and maintenance conditions

It can be used in different stages of aerobic, anaerobic and anoxic processes. Only by adding MBBR biological fillers can easily obtain satisfactory treatment results. Without support, MBBR biological filler can be put directly, and can save sludge reflux, avoid sludge swelling, floating and loss problems, easy operation and maintenance.

Our product advantage?

1. Strict selection of materials, special modification: the use of new HDPE raw materials, and on the basis of special modification, adding hydrophilic genes, anti-ultraviolet and other special formula.

2. High-speed production line: With more than 100 high-speed extrusion lines, MBBR packing annual output of more than 150, 000 cubic meters, can quickly complete large project orders.

3. Set formula, mold design, production, logistics in one of the high-tech enterprises, can be customized according to customer requirements, fully meet the different needs of customers.

4. Different MBBR fillers are designed according to different processes of aerobic and anaerobic.

MBBR biological filler has the advantages of large surface area, good hydrophilicity, good mobility, high biological activity, easy hanging film, good treatment effect, long service life, so MBBR process will be widely used in more sewage treatment projects, so it is particularly important to choose a filler with good quality and satisfactory price.

  in short, with the rapid development of Chinese urbanization process, Underground sewage plant has become the trend of sewage treatment in large and medium-sized cities. MBR and MBBR processes are the main processes of underground sewage treatment plants at present. MBR has advantages over MBBR only from the perspective of process, but the total cost of MBR process is higher if combined with the investment cost. Therefore, the specific choice of underground sewage treatment plant which process should be determined after comprehensive comparison.