Membrane bioreactor (MBR) is a new wastewater treatment technology that organically combines membrane separation technology and biotechnology. Combined with traditional biochemical treatment, membrane separation equipment is used to intercept macromolecular organic substances and eliminate the secondary sedimentation tank. The concentration of activated sludge is greatly increased, and the difficult-to-degrade substances are continuously reacted and degraded in the reactor, so the biochemical treatment effect is greatly improved, the turbidity of the water produced is reduced, and the floor area is reduced. The water produced by the MBR process can be directly used for general miscellaneous water reuse such as greening, watering, car washing, sanitation, toilet flushing, etc. The disadvantages of MBR system are that the initial investment is large and the MBR membrane module needs to be replaced regularly.
Wastewater treatment process of high-efficiency membrane bioreactor
Composition and production of high-efficiency membrane bioreactor sewage treatment system
A complete integrated sewage treatment system consists of lifting pump, grille filtration, treatment tank, filling and aeration device, self-priming pump, sludge discharge device, sludge return device, disinfection and other components. The main materials of the pool body are carbon steel, epoxy anti-corrosion, and 304 stainless steel.
Features of high-efficiency membrane bioreactor sewage treatment system
●The water quality is good, and the turbidity is ≤5
●Small footprint, saving civil engineering investment
●The system operates stably and has strong impact resistance
●The system mud age is long, which greatly improves the degradation efficiency of refractory substances
●Easy to automate, easy to operate and manage
Selected specifications and parameters of the integrated treatment system
| Equipment process | Specification size （m） | Throughput （m3/d） | Running power （kw/h） | Floor area （m2） | Running weight （t） |
| MBBR | 4×1.8×2.6 | 25 | 0.95 | 25 | 16 |
| 5×1.8×2.6 | 35 | 0.95 | 35 | 21 | |
| 6×1.8×2.6 | 50 | 0.95 | 40 | 28 | |
| 8×2×3 | 80 | 1.2 | 50 | 48 | |
| 10×2×3 | 120 | 1.5 | 75 | 85 | |
| 11.5×2.1×3 | 150 | 1.8 | 80 | 95 | |
| MBR | 4×1.8×2.6 | 30 | 1.35 | 25 | 17 |
| 5×1.8×2.6 | 40 | 1.85 | 35 | 22 | |
| 6×1.8×2.6 | 60 | 2 | 40 | 29 | |
| 8×2×3 | 125 | 3 | 60 | 50 | |
| 10×2×3 | 180 | 5 | 70 | 90 | |
| 11.5×2.1×3 | 250 | 5.5 | 75 | 115 |
Inlet and outflow indicators
| project | COD | BOD | SS | PH | TP | NH3-N |
| Water | 300 | 140 | 180 | 45086 | 3 | 25 |
| 产水 | 60 | 20 | 10 | 45086 | 2 | 8 |
MBR处理系统
