Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

32results about How to "Reduce bioburden" patented technology

Sewage treatment method and treatment equipment of urban river sewage outlet

The invention relates to a city watercourse drain outlet sewage treatment method. The method mainly comprise the steps of regulation, wherein sewage is introduced into a regulating reservoir for regulation; mixing with flocculant, wherein sewage in the regulating reservoir is led out to be mixed with flocculant; flocculent settling, wherein sewage mixed with flocculant is sequentially introduced into a baffle flocculation reaction tank and a settling tank for sewage flocculation and sludge precipitation separation; denitrification, wherein water discharged from the settling tank and part of water discharged from a nitration aerating filter are introduced into a denitrification filter for denitrification; aerobiotic nitration, wherein water discharged from the denitrification filter is introduced into a nitration aerating filter for nitration; filtration, wherein part of water discharged from the nitration aerating filter is introduced into a filtering device for filtration. The invention further provides a sewage treatment device adopting the method. The sewage treatment device comprises a regulating reservoir, a pipeline mixer, a baffle flocculation reaction tank, an oblique plate settling tank, a denitrification filter, a nitration aerating filter and a clear water pond which are connected in series, wherein a water outlet pipeline of the clear water pond is connected to a filter device.
Owner:BEIJING HEHAIQINGYUAN ENVIRONMENTAL PROTECTION SCI & TECH CO LTD

Diversion based biological film waste water integrated treatment process

The invention provides a diversion based biological film waste water integrated treatment process, which comprises the following steps of S1, building a diversion based biological film waste water treatment system which comprises a grid, a regulating tank, an anaerobic tank, a hydrolysis acidification tank, a secondary aerobic tank, a sedimentation tank, a rapid filter tank, an ozone tank, an ultraviolet disinfecting pipe and a clean water discharge pipe; S2, removing float in the waste water via the grid, performing primary sedimentation, separation and adjustment of water quality and water volume via the regulating tank, performing anaerobic treatment via the anaerobic tank, and carrying out hydrolysis acidification via the hydrolysis acidification tank; S3, performing aerobic treatmentvia the secondary aerobic tank, treating via the sedimentation tank, the rapid filter tank, the ozone tank and the ultraviolet disinfecting pipe, and discharging from the clean water discharge pipe, thereby completing the diversion based biological film waste water integrated treatment process. The treatment process completes the effective treatment of the waste water via the built diversion basedbiological film waste water treatment system., and has the advantages of wide application, operation convenience and high performance to cost.
Owner:河南海天环境科技有限公司

Carbon and nitrogen removal device and method of high ammonia-nitrogen and high organic matter wastewater

The invention discloses a carbon and nitrogen removal device of high ammonia-nitrogen and high organic matter wastewater, which comprises an anaerobic fermentation tank, a high DO (dissolved oxygen) decomposition tank, a middle DO nitrification tank, a denitrification filter tank, a settling tank and a disinfection tank that are sequentially communicated, wherein the top of the anaerobic fermentation tank is communicated with the bottom of the denitrification filter tank; sludge discharge ports are formed at the bottoms of the anaerobic fermentation tank, the high DO decomposition tank, the middle DO nitrification tank and the settling tank and communicated with a sludge storage tank through sludge discharge pipes; a sludge discharge port of the sludge storage tank is communicated with a sludge hydrolysis tank; and the sludge hydrolysis tank is communicated with the denitrification filter tank. The device has the benefits that the raw wastewater is treated by anaerobic fermentation; biodegradability of the wastewater is improved; a biological load of later treatment is reduced; inhibition of nitration due to the excessive organic load can be avoided since a COD (chemical oxygen demand) removal process and a nitrification process are performed separately; hydrolysate of methane generated by the anaerobic fermentation and excess sludge serves as a denitrification carbon source; the operation cost is saved; and energy conservation and emission reduction are also facilitated.
Owner:WUHAN UNIV OF TECH

Urban sewage SDA+BAF treatment system and treatment process thereof

The invention relates to an urban sewage SDA+BAF treatment system. The system comprises a fine separation device, an adjusting buffer tank, a facultative tank, an ultrasonic vibration sedimentation tank, an SND reactor, an SAD reactor, a BAF reactor, a clean water tank, an ozone disinfection tank and a metering discharge channel which are connected in sequence, the fine separation device is a finesilk screen filtering mechanism and has a self-cleaning function; an ultrasonic vibration separation plate is arranged in the ultrasonic vibration sedimentation tank, the SND reactor, the SAD reactorand the BAF reactor are respectively of fluidized bed type structures, and a water distribution layer, a water distribution layer and a packing layer are specially designed, and packing with specificproportions and components is arranged in each reactor. The invention also discloses a treatment process for an urban sewage SDA+BAF treatment system. The Urban sewage SDA+BAF treatment system and the treatment process thereof have the beneficial effects that the power consumption is low, the effluent quality stability is high, the physical suspended matter removal and sludge generation amount issmall, an additional carbon source is not needed, and the medicament cost is saved.
Owner:四川人福生物环保有限公司

A carbon and nitrogen removal device and method for wastewater with high ammonia nitrogen and high organic matter

The invention discloses a carbon and nitrogen removal device for waste water with high ammonia nitrogen and high organic matter, which comprises an anaerobic fermentation tank, a high DO decomposition tank, a medium DO nitrification tank, a denitrification filter tank, a sedimentation tank and a disinfection tank connected in sequence; The top of the oxygen fermentation tank communicates with the bottom of the denitrification filter; the bottoms of the anaerobic fermentation tank, high DO decomposition tank, medium DO nitrification tank and sedimentation tank are all equipped with mud discharge ports, and each mud discharge port is connected to the denitrification tank through the mud discharge pipe respectively. The mud storage tank is connected; the mud discharge port of the mud storage tank is connected with the sludge hydrolysis tank, and the sludge hydrolysis tank is connected with the denitrification filter tank. The beneficial effects of the present invention are: the use of anaerobic fermentation to treat the original wastewater not only improves the biodegradability of the wastewater, but also reduces the biological load of subsequent treatment; the process of removing COD and the nitrification process can be separated to avoid the excessive organic load on the nitrification reaction Inhibition; the methane produced by anaerobic fermentation and the hydrolyzate of excess sludge are used as denitrification carbon sources, which not only saves operating costs, but also contributes to energy conservation and emission reduction.
Owner:WUHAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products