The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 05, 2008
Filed:
Jun. 28, 2006
Huey-song You, Yilan, TW;
Kuan-foo Chang, Changhua, TW;
Sheng-shin Chang, Miaoli, TW;
Shwu-huey Perng, Hsinchu, TW;
Shu-kang Hsu, Hsinchu, TW;
Huey-Song You, Yilan, TW;
Kuan-Foo Chang, Changhua, TW;
Sheng-Shin Chang, Miaoli, TW;
Shwu-Huey Perng, Hsinchu, TW;
Shu-Kang Hsu, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
The present invention relates to a wastewater treating system and method for removing pollutants of carbon, nitrogen, phosphorous, comprising: a first reactor contains methanogenic bacteria, PAO and denitrifying bacteria for eliminating the 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 first reactor, second reactor treats the effluent from first reactor by denitrifying bacteria and PAO, denitrifying bacteria is able to denitrifying the nitrate and PAO is able to process the phosphorous releasing; a third reactor disposed rearward of second reactor, which comprises PAO, heterotrophic bacteria and nitrifying bacteria, wherein PAO is applied for phosphorous accumulating process, the heterotrophic bacteria is applied for carbon removal process, the nitrifying bacteria is applied for nitrifying process; and a membrane separation reactor disposed inside or rear of third reactor to separate various microorganisms and the treated effluent. The present invention applies methanogenic bacteria in the system for decreasing the amount of waste sludge efficiently and reduce power consuming.