Patent ID: 7407580
Filing Date: 2008-08-05
Classification: C02F,Y02E,Y02W,Y10S

Abstract:
1. A wastewater treating system for removing pollutants of carbon, nitrogen, phosphorous, comprising: a first reactor, which contains methanogenic bacteria, PAO and denitrifying bacteria for reactions of eliminating organic carbon in denitrification by denitrifying bacteria, adsorbing partial organic carbon and releasing phosphate by PAO and; metabolizing organic carbon to form methane gas by methanogenic bacteria; a second reactor disposed at the rearward of said first reactor, said second reactor treats an effluent from said first reactor by denitrifying bacteria and PAO, said denitrifying bacteria is able to denitrifying nitrate and the PAO is able to release the phosphate; a third reactor disposed rearward of said second reactor, which comprises PAO, heterotrophic bacteria and nitrifying bacteria, wherein said PAO is applied for phosphorous accumulation process, said heterotrophic bacteria is applied for carbon removal process, said nitrifying bacteria is applied for nitrifying process; and a membrane separation reactor disposed inside said third reactor or the rearward of said third reactor in order to separate a plurality of microorganisms and treated effluent.