BIOLOGICAL TREATMENT SYSTEM FOR REMOVAL OF NITROGEN AND PHOSPHORUS IN WASTEWATER ACCORDING TO FLUCTUATION IN NITROGEN CONCENTRATION

PURPOSE: Provided is a biological treatment system for removal of nitrogen and phosphorus contained in wastewater according to nitrogen concentration changes, which is characterized in that raw wastewater is distributed to anaerobic reactor, aerobic reactor, or anoxic reactor on the basis of nitroge...

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Bibliographic Details
Main Author LEE, EUNG TAEK
Format Patent
LanguageEnglish
Korean
Published 22.11.2001
Edition7
Subjects
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:PURPOSE: Provided is a biological treatment system for removal of nitrogen and phosphorus contained in wastewater according to nitrogen concentration changes, which is characterized in that raw wastewater is distributed to anaerobic reactor, aerobic reactor, or anoxic reactor on the basis of nitrogen concentration in wastewater. CONSTITUTION: The biological system comprises an anaerobic reactor(T1), aerobic reactor(T3), or anoxic reactor(T2). When BOD/N in raw wastewater(Q) is 4, the wastewater is totally introduced to anoxic reactor, whereas BOD/N in raw wastewater(Q) is 25, the wastewater is totally introduced to anaerobic reactor. Also, in case that the BOD/N in raw wastewater(Q) is between 4 and 25, according to equation 'r'=1+(4-BOD/N), 'r' portion of wastewater is introduced to anoxic reactor, and the rest is distributed to anaerobic reactor.
Bibliography:Application Number: KR19980014696