Membrane Bio Reactor

The company offers high quality Membrane Bio Reactor that is basically used for wastewater treatment. This Membrane Bio Reactor has a high pollutants removal rate & renders steady operation. We are even a single supplier in India that provides high quality membrane bio-reactor at low cost. Membrane Bio Reactor (MBR) technique is a new method for wastewater treatment that integrates membrane separation and biotechnology, rejects activated sludge and macromolecular organic matter in aerobic tank or MBR tank with membrane separation plant, thus saving the use of secondary sedimentation tank. Consequently, the concentration of activated sludge rises greatly, the HRT and the SRT could be controlled separately, and difficult degraded matters are constantly degraded and reacting in reactor. Therefore, compared to traditional biological treatment methods, MBR technique greatly strengthens the function of the bioreactor with the using of membrane separation, it has advantages as follows: high biochemical efficiency, strong load impact resistance, stable effluent quality, smaller foot print, long period of sludge discharging, easily automatic control, etc. MBR is a high effective combination with membrane separation and biological treatment instead of secondary sedimentation tank of activated sludge process to separate.
Features :

• High pollutants removal rate, strong capacity of sludge bulking resistant, steady treated effluent quality, suspend solid (ss) in effluent near to zero.
• Accomplish complete separation between hydraulic retention time (hrt) and sludge retention time (srt). Operation is simple and flexible.
• Stop loss of activate organism by membrane mechanical interception. Keep high concentration of activated sludge in bioreactor so that enhance volume load largely and reduce sludge load. Membrane reactor integrates traditional aeration tank and secondary sedimentation tank into one system and displaces all equipment after secondary sedimentation tank which in conventional process. Largely reduce foot print, and save investment of civil works.
• Due to the function of membrane interception, srt is prolonged, this process create good growing environment for microorganism (example: nitrobacteria) which grow slowly. It can enhance system nitrification ability. It will enhance efficiency of big molecular organism degradation. Lead them to degrade completely.
• Due to very long srt, membrane bioreactor can be role of sludge nitrification tank so that it’s remarkable to reduce sludge production, decrease disposal cost of sludge.
• Activated sludge in bioreactor will not be lost during treated water production. Concentration of sludge will be along with organism concentration change to change, and reach a dynamic balance. So, the treated water quality is steady and the system has strong impact load tolerant capability.
• The reactor special structure causes wastewater mix uniformly, so activated sludge has good dispersibility, largely increase sludge specific surface area. This is another reason of our system has good efficiency. This is also the characteristic which conventional biological methods cannot compare with it because conventional biological methods will easily cause larger bacteria & colloid bulk in the wastewater.
• Material polypropylene (PP)

We have two types of MBR system to suit different client’s requirement. First, is a small capacity compact steel tank MBR system for private parties, such as hotel, villa, car wash workshop, house to treat shower & bath grey water, domestic wastewater, car wash wastewater, etc. The treated effluent can be used to garden, landscape, car wash, toilet flush, irrigation, other recycling utilization. This system can be designed to fit international container size, ship easily. We also accept to supply our full design to guide you build RCC STEEL FRP tank in your place. Below photo is system RCC MBR for hotel wastewater treatment. Another is big capacity MBR system for government tenders; RCC tank is in client’s scope as per our drawing. For equipment in system, clients also can follow specification we submit to purchase locally, we will supply complete technical support, if necessary we can send engineer to give training at your place. hydrophilic before using the membrane, it should be treated by the hydrophilic process, the method is as follows first keep it in 95% industrial alcohol for about 2 minutes (attention: avoid the water collecting tubes of both sides be immersed in the alcohol), then use clean water to immerse and flush it for 13 minutes. If the membrane is not used immediately after the process, it should be packed hermetically, to keep the membrane fiber wet. Fouling prevents and membrane cleaning micropore air diffuser is recommended. The bubbles and stream produced from aeration can shake membrane fiber and scour it. Meanwhile using intermittent operation process, self-suction pump works for 13 minutes and stops for 2 minutes, to prevent membrane clogging and guarantee the long stable running. Before running the membrane, we should make sure that microorganisms in the biochemical tank grow activated and low stickiness. During operating, keep flow constant, strictly prohibit product water flow is non-stable. The suction negative pressure could be read out through electrical-touched pressure gauge, the operating negative pressure of membrane is -0.01 ~ -0.03mpa; if condition permitted, draw off water using a siphon type, and keep water level difference between biochemical tank and treated water tank is 3.0~4.0m, thus membrane slice could not be polluted easily and the using period could be longer. When the operating negative pressure is over 0.05mpa, membrane slice should be cleaned. Take off the membrane slice from the frame, wash its surface with clean water, clean away the activated sludge stuck on the surface; and then immerse the membrane slice in 3-5% naoh for over 2 hours (overnight is better), clean away organic matters and colloids on the surface, again wash the membrane slice with clean water, then the flux will be recovered. If wastewater contains high content of calcium, magnesium ion and metal hydroxid, after naoh solution cleaning, should immerse membrane in 2-3% hcl solution for 1-2 hours (better shake membrane in order to make Hcl and pollutants mix and react fully). And then wash it with clean water. In order to prevent corrosion, demount all metallic connection fitting before acid cleaning. If effect of above two ways is not ideal, could immerse membrane in 0.5% naclo for 0.5-1 hour, eliminate all organism on the surface, then washed by clean water. But, do not immerse membrane for so long time to avoid damage from oxidation, and it will reduce strength. During cleaning process, handlers are required to be careful to avoid fiber damage. Meanwhile, keep surface of membrane wet, prevent freezing and dry which will affect flux even no effluent.
Note :

• Keep membrane wet at any time, because if dry, it will cause irreversible damage.
• Whatever naoh solid or solution and naclo, HCL solution all have high corrosiveness. Handlers should put on prevention things, avoid touching them directly.
• Naclo solution has strong oxidation, it will affect membrane life, only use it if acid and alkaline methods are not ideal
• Others make sure hydrophilic membrane and equipment be kept in 5-40 during the process of transporting and storing to avoid damaging the membrane. Prevent the equipment from long-time sunshine to avoid plastic damage by ultraviolet ray. If the site temperature is below 0, we suggest conducting hydrophilization process on site, if not use it immediately, should keep the membrane wet by sealing up and keeping warm; prevent freezing during hydrophilization and cleaning process.