Pilot-scale test process for NMP wastewater recycling based on VBBR (Vapor Bed Biofilm Reactor)

Pilot-scale test process for NMP wastewater recycling based on VBBR (Vapor Bed Biofilm Reactor)

The invention relates to the technical field of sewage treatment, and discloses a VBBR-based NMP wastewater recycling pilot plant test process, which comprises: (1) a sludge domestication stage: domesticating sludge by using NMP as a carbon source to obtain aerobic sludge and anaerobic sludge suitab...

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Hauptverfasser: WANG WANSONG, LIANG BIN, ZHAO KAICHUAN, LU JINLI, LIANG YAJUAN, GAO SHUANG, TAN XUEJUN, ZHANG YONGMING, CHEN LINA
Format: Patent
Sprache:chi ; eng
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CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator WANG WANSONG
LIANG BIN
ZHAO KAICHUAN
LU JINLI
LIANG YAJUAN
GAO SHUANG
TAN XUEJUN
ZHANG YONGMING
CHEN LINA
description The invention relates to the technical field of sewage treatment, and discloses a VBBR-based NMP wastewater recycling pilot plant test process, which comprises: (1) a sludge domestication stage: domesticating sludge by using NMP as a carbon source to obtain aerobic sludge and anaerobic sludge suitable for using NMP as the carbon source; and (2) a sewage treatment stage: mixed sewage composed of NMP wastewater and town sewage is circularly introduced into the anaerobic VBBR and the aerobic VBBR which are connected in series, and the carbon nitrogen ratio of the mixed sewage is controlled to be 4.5-5.5. According to the scheme, the NMP wastewater is recycled to replace methanol, ethylene glycol, sodium acetate and other organic matters used by a sewage plant, deep denitrification is performed on the town sewage, and the total nitrogen in the town sewage is remarkably reduced, so that the town sewage meets the national sewage discharge standard. The applicant finds that the total nitrogen in the town sewage trea
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subjects CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title Pilot-scale test process for NMP wastewater recycling based on VBBR (Vapor Bed Biofilm Reactor)
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