The activated sludge process 

The activated sludge process is one of the most widely used wastewater treatment processes. It successfully treats municipal and industrial wastewater globally. While there are many benefits to the process it has high operational costs due to both the energy required for the process and the volume of sludge produced.

A treatment method that reduces the amount of sludge produced will have massive benefits to the industry.

Sludge is the residue generated during the treatment of wastewater. It is a major environmental challenge for wastewater treatment plants as they need to ensure they correctly disposal of excess sludge produced during the process. Safe and long-term solutions for the destination of sludge produced by wastewater treatment plants are a vital element of a sustainable functioning facility. MABR technology can considerably reduce the volume of sludge produced during the treatment process in comparison to traditional methods.

OxyMem MABR and Sludge Production

A key advantage of the OxyMem MABR system is it is an aerobic system that can achieve the same or in some cases better effluent quality of an activated sludge system without the need to use bubbles - a highly energy intensive process. Instead oxygen is provided, through dense silicone membranes, fueling the biomass which grows as a biofilm on the membrane.

MABR can produce up to 50% less sludge compared to conventional activated sludge systems. As the biomass in an OxyMem MABR is attached to the membrane surface there is a much lower concentration of suspended solids in the bulk liquid. The sludge yield in an OxyMem system is less than 0.2 kg TSS per kg of COD removed.

There are many benefits for a treatment plant when they reduce the volume of sludge produced.
-Less pumping is required
-Less sludge to store, transport and disposal off.
-An added environment benefits as there is less tankers being on the road.

 

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