Urban sewage nitrogen and phosphorus removal system and technology coupled with side flow phosphorus recovery

Urban sewage nitrogen and phosphorus removal system and technology coupled with side flow phosphorus recovery

The invention relates to an urban sewage nitrogen and phosphorus removal system and technology coupled with side flow phosphorus recovery. The urban sewage nitrogen and phosphorus removal system coupled with sidestream phosphorus recovery comprises a mainstream improved A2O nitrogen and phosphorus r...

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Hauptverfasser: SUN YONGLI, XIA QIONGQIONG, LI PENGFENG, SHANG WEI
Format: Patent
Sprache:chi ; eng
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator SUN YONGLI
XIA QIONGQIONG
LI PENGFENG
SHANG WEI
description The invention relates to an urban sewage nitrogen and phosphorus removal system and technology coupled with side flow phosphorus recovery. The urban sewage nitrogen and phosphorus removal system coupled with sidestream phosphorus recovery comprises a mainstream improved A2O nitrogen and phosphorus removal unit and a sidestream phosphorus recovery unit, the main stream improved A2O nitrogen and phosphorus removal unit completes nitrogen removal by denitrification, anaerobic phosphorus release, phosphorus removal by denitrification and aerobic phosphorus uptake, and an aluminum salt or ferric salt phosphorus removal agent is added into the side stream phosphorus recovery unit to generate a phosphate precipitation product and recover the phosphate precipitation product. According to the urban sewage nitrogen and phosphorus removal process coupled with side flow phosphorus recovery, the defects of synergistic phosphorus removal and post phosphorus removal are overcome, the carbon source utilization efficiency of
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subjects CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title Urban sewage nitrogen and phosphorus removal system and technology coupled with side flow phosphorus recovery
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