Envirotect Water and Wastewater Engineering and Consultants
  • External Membrane Airlift MBR
  • Membrane tank not required
  • Membrane bioreactors are water and waste water treament technology
  • flat sheet membranes have planar configuration
  • flat sheet membranes which are semi rigid but some could be flexible
  • hollow fibre membranes are normally vertically oriented
  • hollow fibre membranes are most commonly referred to as a module
  • multi tube tubular membranes are the only mbr membrane product which are standardized
  • for air lift side stream systems of multi tube tubular membranes the modues are discrete
  • multi tube tubular membranes are vertically oriented and longer than most pump type membranes
  • multi tube tubular air lift membranes have a compact footprint
  • multi tube tubular air lift membranes eliminate secondary clarifier and tertiary filtration
  • multi tube tubular air lift membranes treat water reuse and increase quality vs other technologies
  • immersed tank mbr have an inlet and permeate
  • multi tube tubular air lift membranes use a side stream approach using activated sludge and membrane module
  • immersed membranes are directly immersed in activated sludge
  • immersed membranes require a tank to house the membrane
  • tubular membranes are arranged horizontally in series on skids
  • multi tube tubular air lift membranes are pumped mixed liquor at a high cross flow velocity through mf/uf
  • multi tube tubular air lift membranes have a relatively high energy draw due to reliance on pumping
  • multi tube tubular air lift membranes utilize air to create cross flow velocity
  • multi tube tubular air lift membranes reduce draw compared to immersed and horizontal crossflow mbr
  • vertical tubular membranes have ras backwash permeate mlss feed
  • vertical membranes are placed on a smooth dry surface
  • vertical membranes are arranged to allow plenty of air flow around each tube
  • multi tube tubular air lift membranes are made from PVDF and have a tube diameter of 5.2 mm
  • multi tube tubular air lift membranes have an effective membrane area of 355 ft with inside to out configuration