MBR – ( MEMBRANE BIOREACTOR ) by A3S Enviro
The Membrane Bio Reactor (MBR) is a biological system coupled with a membrane to enhance solid-liquid separation and filtration. The membrane is made of cost-effective non-woven fibrous material. It has many outstanding properties, such as controllable pore sizes and easy fabrication of the membrane module to achieve the desired surface area. The MBR can achieve the desired permeation rate at low transmembrane pressure.a3s Enviro offers a wide range of MBR based ETP/STP plants which is compact & energy saving.
Principles of MBR Technology
Membrane bioreactors (MBRs) are a relatively new wastewater treatment technology, which promises exceptional treatment efficiency and a reduced footprint compared to conventional treatment process trains.
MBRs are quite simply an activated sludge process in which the conventional secondary clarifier is replaced by a membrane separation process (either micro- filtration or ultra-filtration). The MBR can be operated without primary clarification, but always requires fine screening (3 mm or smaller) to protect the membranes from abrasive waste components.
Due to the presence of an absolute barrier for suspended solids, MBRs are able to maintain very high solids concentrations (8000 to 12000 mg/lit) and solids retention times which allow for smaller aeration basins and high BOD removals.