Aquabio’s AMBR LE™ system is optimised to provide low energy use, compared with conventional crossflow or submerged membrane separation systems. By employing intermittent back flushing of membranes, fouling is controlled, enabling a reduction in crossflow velocity and a significant saving in energy. Variable speed recirculation pumps provide a variable flux rate that is used to optimise energy use relative to the plant throughput. Plants remain very compact, with low membrane area and optimal membrane replacement costs.
The cross flow ultrafiltration (UF) membranes provide a complete barrier to suspended solids resulting in a high quality, solids free permeate which can either be sent as a low cost discharge to sewer or water course or ideally applied directly to Aquabio’s RO/UV technology to provide potable water re-use.
|Low/medium flow and low/medium strength industrial wastewaters|
|Variable wastewater flows, high peak or seasonal loads, or when electricity costs are moderate to high|
|Secondary wastewater treatment to sewer or surface water|
|Nutrient removal, nitrification and denitrification|
|Combined with Aquabio’s RO/UV water re-use technology for potable/demineralised applications|
|High biomass concentration enables a smaller plant footprint compared with other systems||Automatic Backflush - controls fouling without high scouring velocities|
|Deep bioreactor tank provides higher aeration efficiency and lower energy usage for UF membranes||Low energy use comparable with submerged membrane systems|
|Low loading rate providing robust process and low sludge production||System can ramp-up for higher demand without additional membrane area or ramp-down to save energy at lower demand|
|Robust treatment for removing > 99 % COD and BOD||Optimised installed membrane area|
|‘Out-of-tank’ and low level installation of equipment provides ease and safety of maintenance||Ideal pre-treatment for direct application to Aquabio’s RO/UV water re-use technology|
|Modular design allows for ease of expansion||Advanced pretested, standardised software and control system|
|Can be easily retrofitted to existing systems||Remote access functionality|