An alternating anaerobic contact system for treating wastewater through an apparatus including one enclosed vessel partitioned into two or more enclosed chambers wherein each chamber is flow connected to other chambers by conduits or an apparatus including two or more enclosed vessels wherein each vessel...http://www.google.es/patents/US6096214?utm_source=gb-gplus-sharePatente US6096214 - Process for applying alternating anaerobic contact processing for the treatment of wastewater
Process for applying alternating anaerobic contact processing for the ...