Troubleshooting Foaming in Membrane Bioreactor: Review of Foam Analysis, Causes and Remedies

Membrane Bioreactors have proved to be a useful alternative conventional activated sludge systems for wastewater treatment. Merits of membrane bioreactors include more compact design saving significant amount space and lower production due longer retention time. This system unfortunately has downside with it comes excessive foaming. often act as foam traps leading overflowing, wastage difficulty in process control. Pre-Treatment proven significantly reduce foaming caused by surfactants. Generally, physical methods are considered economical operationally convenient compared techniques including chemical treatment advanced like biological Polyaluminium chloride coagulant is recommended economic effectiveness considerations. It been concluded that the remedies issue case specific should determined causes paper aims at reviewing analyse phenomenon, its manage or eliminate foam.