& Publication] [Guest
Waste Water treatment for the Largest Bakery Plant in Hong
Engineering Co., Ltd. successfully completed a trial on adoption
of Membrane Bio-reactor (MBR) to treat the high concentration
wastewater generated from the largest Bakery Plant in Hong
Kong. The trial was undertaken from Jan to Mar. of 2007. Comparing
with the existing wastewater treatment in the Bakery Plant,
Dunwell’s Membrane Bio-reactor could help them to save the
wastewater treatment cost of HK$240,000 per year.
the saving in wastewater treatment cost, Dunwell's Membrane
Bio-reactor is more compact than the traditional wastewater
treatment plant, so the user could use the saved space for
other manufacturing applications.
Membrane Bio-reactor for food processing wastewater have three
main steps : Physio-chemical treatment, Biological treatment
and Membrane separation. Wastewater firstly passes through
two automatic screens so as to remove the coarse suspended
solids. Afterwards the wastewater will enter the aeration
tank. Inside the aeration tank, the activated sludge (suspended
microorganisms) will absorb and digest the organic matter
inside the wastewater. The treated water will be finally extracted
through a submersible membrane with 1.4um, and separated from
the activated sludge.