MBR biological sewage treatment plant

Membrane bioreactor

MBR is new type high efficient sewage treatment process which combine membrane separation technique and traditional activated sludge, with the unique structure immersed membrane module into aeration pond, after aerobic aeration and biological treatment, water is extract out by pump after membrane filtration.

  Membrane Modules

The principle of membrane filtration is based upon the separation of solids suspended in a watery solution by means of a pressure difference. While the water permeates through the membrane, the solids, bacteria and even most viruses are retained on the concentrate side on the membrane surface where they are removed by relative movement. The MBR system is provided with multiple membrane elements in an integrated membrane module in 2 or 3 stages in an aerobic tank. The MBR systems utilize side-stream cross-flow membrane configuration. The wastewater is filtrated using suction filtration, and the filtered water becomes treated. Air is supplied from the air diffuser installed on the bottom of the membrane module to prevent sludge from adhering to the membrane surface. Thus, the system can perform stable treatment without getting clogged.

 Water Treatment Quality

High Water Quality

BOD < 5 mg/L

TSS < 1 mg/L

Turbidity < 1 N.T.U

Total bacterial removal 99.99% virus removal

Key Benefit of MBR

 High efficiency / Low maintenance

Membrane modules are backflushable

Easy to clean

Yield 60-80% less sludge than conventional system

Compact design – footprint 75% smaller than conventional

Possibility of direct and indirect water reuse

Modes (All customized models are available by online inquiry)