Suspended media membrane biological reactor system including suspension system

Abstract

A wastewater treatment system is provided comprising a biological reactor having a separation subsystem, a suspension system and a membrane operating system. The separation subsystem is constructed and arranged to maintain adsorbent material in the biological reactor with a mixed liquor. The suspension system is positioned in the biological reactor and is constructed and arranged to maintain adsorbent material in suspension with mixed liquor. The membrane operating system is located downstream of the biological reactor and is constructed and arranged to receive treated mixed liquor from the biological reactor and discharge a membrane permeate.

1 . A wastewater treatment system for treating wastewater comprising:
 a biological reactor with a wastewater inlet, a mixed liquor outlet, and a separation subsystem associated with the mixed liquor outlet;   a suspension system for adsorbent material positioned in the biological reactor;   a membrane operating system located downstream of the biological reactor having
 an inlet in fluid communication with the mixed liquor outlet, and 
 a treated effluent outlet. 
   
     
     
         2 . The wastewater treatment system of  claim 1 , wherein the suspension system comprises a gas lift suspension system. 
     
     
         3 . The wastewater treatment system of  claim 1 , wherein the suspension system comprises a jet suspension system.