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Industrial Membrane BioReactor (MBR) Systems

Modular Sewage Treatment Plant 6,250 to 75,000 GPD / 24 to 284 M3/D

The Membrane BioReactor (MBR) is a pre-engineered sewage treatment system utilizing Pure Aqua's water treatment expertise with Toray's submerged membrane technology. MBR combines conventional activated sludge treatment with a membrane liquid-solid separation process. The membrane separation process eliminates the clarifier and allows high volumetric loading, resulting in a smaller footprint. The MBR can produce high quality effuent with high BOD5 removal (about 98%) and virtually complete TSS removal.

Submerged Flat Sheet Membrane Technology

The MBR unit uses Toray flat sheet membranes immersed in the process tank in direct contact with the mixed liquor. Air injected from a manifold at the bottom of the membrane assembly help keep the membrane surfaces clean as well as supply oxygen for the "bugs". The MBR unit is equipped with a high level of automation, ensuring the plant's simple operation and low maintenance cost.

Higher Efficiency

Using membranes to separate sludge ensures higher quality treated water free from suspended solids. Membranes can retain activated sludge at high concentrations (MLSS), resulting in more efficient BOD and nitrogen removal (higher solids retention time). The membrane has an immense number of minuscule pores delivering stable and high water permeability with minimal clogging and higher permeated water quality.


Benefits of MBR

  • Reduced space requirements
  • Increased solids removal (elimination of bulking)
  • Pathogen reduction through removal of Cryptosporidium and Giardia
  • Increased volumetric loading
  • Production of less sludge due to high sludge age
  • High SRT which allows the development of slow-growing
  • microorganisms such as nitrifying bacteria
  • Retention of high molecular weight organic compounds
  • that can increases product water quality

The modular concept allows for phased construction of wastewater treatment plants and makes it adaptable to a wide range of sizes and 􀅛ow rates. Pure Aqua units can be containerized which has number of advantages:

  • Limited site work
  • Quick installation
  • Easy to relocate

How the Membrane BioReactor System Works

The membrane modules are placed directly in the bioreactor. Each
module configuration comprises an element block and an aeration
block. The element block contains a number of membrane
elements stacked at equal intervals, each of which has flat sheet
membranes attached on both sides of a supporting panel. Each
element is connected via a tube to a permeated water manifold.
The aeration block consists of air diffusers used to supply air.


 

Model# Flow Rate

Approx. Populations

(50GPD/Person)

Number of

Membranes

Number of

Containers
GPD
M3/D
MBR-6.26K-1
6,250
24
125
1
20'X1
MBR-12.5K-1
12,500
47
250
1
40'X1
MBR-25.0K-2
25,000
95
500
2
40'X2
MBR-50.0K-4
50,000
189
1,000
4
40'X2
MBR-75.0K-6
75,000
284
1,500
6
40'X3

All specifications are subject to change without notice

We also supply Custom Engineered Solutions the following:
  • Multi-Media Pretreatment
  • Carbon Pretreatment
  • Water Conditioning
  • Chemical Metering Pumps
  • Ultra-Violet Sterilizers
  • Ozone Sterilization

 
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