CN106673323A - Sweet potato alcohol wastewater treatment method - Google Patents

Sweet potato alcohol wastewater treatment method Download PDF

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Publication number
CN106673323A
CN106673323A CN201611255021.3A CN201611255021A CN106673323A CN 106673323 A CN106673323 A CN 106673323A CN 201611255021 A CN201611255021 A CN 201611255021A CN 106673323 A CN106673323 A CN 106673323A
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CN
China
Prior art keywords
waste water
solid
zinc powder
aerobic
radix ipomoeae
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611255021.3A
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Chinese (zh)
Inventor
龙炳清
曾伟
舒曼
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Sichuan Normal University
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Sichuan Normal University
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Priority to CN201611255021.3A priority Critical patent/CN106673323A/en
Publication of CN106673323A publication Critical patent/CN106673323A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
    • C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/70—Treatment of water, waste water, or sewage by reduction
    • C02F1/705—Reduction by metals
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
    • C02F2003/003—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms using activated carbon or the like
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/04—Flow arrangements
    • C02F2301/046—Recirculation with an external loop
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/28—Anaerobic digestion processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physical Water Treatments (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

The invention introduces a sweet potato alcohol wastewater treatment method. The method comprises the procedures of solid-liquid separation, CO2 pressurized reduction of zinc powder under the action of ultrasonic waves, anaerobic treatment, aerobic treatment, biological filtration tower treatment and the like, and the treated wastewater can be stably discharged to reach the standard.

Description

The processing method of Radix Ipomoeae alcohol waste water
Technical field
The present invention relates to a kind of processing method of Radix Ipomoeae alcohol waste water.
Background technology
Radix Ipomoeae is to produce one of primary raw material of ethanol, and the organic waste water pollutant COD concentration that its production is produced is high, into Divide complexity, intractability is big.If the waste water is not processed is directly discharged into environment, severe contamination will be caused to environment.Current sweet potato wine The processing method of smart waste water is mainly biological treatment.Due to containing persistence organic pollutant in Radix Ipomoeae alcohol waste water（Containing benzene Ring and（Or）Heterocycle Organic substance）, especially with fresh sweet potatoes be primary raw material when, the concentration of persistence organic pollutant is higher, Thereby result in Biochemical method Radix Ipomoeae alcohol waste water and be difficult stably reaching standard discharge.The Radix Ipomoeae ethanol of exploitation energy stably reaching standard discharge gives up The processing method of water has larger practical value.
The content of the invention
For the problem of current Radix Ipomoeae ethanol method of wastewater treatment, the purpose of the present invention is to find energy stably reaching standard discharge The processing method of Radix Ipomoeae alcohol waste water, it is characterised in that Radix Ipomoeae alcohol waste water is carried out solid-liquor separation, the waste water isolated are entered Regulating reservoir, the solid isolated make feedstuff.Radix Ipomoeae alcohol waste water after adjusted pond is adjusted sends into voltage-resistant reactor, will clean zinc Powder adds reactor, and is passed through industrial CO2Reacted.The granularity of zinc powder is less than 180 mesh, every liter of waste water add zinc powder 5g~ 30g.Under ul-trasonic irradiation, the stirring reaction time is 10min~40min.Reaction temperature is 25 DEG C~60 DEG C.CO2Pressure be 0.1MPa~0.6MPa.The ultrasonic power of every cubic metre of waste water input is 2kW~8kW.Reacted waste water carries out liquid and divides admittedly From the zinc powder Returning reactor isolated.Waste water lime cream or other alkaline matters after solid-liquor separation adjusts its pH value and arrives 7.0~8.5, subsequently into anaerobic reactor.Waste water stops 24h~120h in anaerobic reactor, and anaerobism temperature is 25 DEG C~55 ℃.Into the process of biology aerobic pond room temperature, the Aerobic Process for Treatment time is 4h~12h to waste water after anaerobism.Waste water after Aerobic Process for Treatment Into sedimentation tank, the sedimentation time is 1h~3h.Irregularly extract sludge out from sedimentation tank to be filtered, filter cake is made general solid and given up Gurry is disposed, and filtrate returns Aerobic Pond.The supernatant waste water of sedimentation tank send multi-layer biological filter tower to process.The filler of biological filtering tower combined working is work Property charcoal or porous ceramic grain, be 0.5m~1.0m per thickness degree, gross thickness is 1m~3m.The dominant bacteria of biological filtering tower combined working is photosynthetic thin Rhodopseudomonas in bacterium（Rhodopseudomonas）.The hydraulic load of biological filtering tower combined working is 50 m3/m2.d~150m3/m2.d。 The standard water discharge discharge of biological filtering tower combined working or reuse.
The object of the present invention is achieved like this, and the solid matter of Radix Ipomoeae alcohol waste water is more, anti-into zinc powder reduction Before answering device, solid-liquor separation is carried out, it is to avoid impact of the solid matter to zinc powder reduction, be also beneficial to the complete zinc powder of unreacted and reclaim again Utilize.After waste water enters Zinc Powder Reduction device, the larger molecular organicses in waste water, particularly persistence organic pollutant（Contain Phenyl ring and（Or）The Organic substance of heterocycle etc.）Destroyed by the effect of the strong reduction free radical that zinc powder reduction is produced, be follow-up life Change is processed and is created favorable conditions.It is passed through pressure CO2Purpose be to maintain the suitable pH value of zinc powder reduction（2.0~5.0）；Input is super The effect of sound wave is the mass transport process of Accelerating reduction reaction.Waste water lime cream or other alkaline matters after reduction adjusts which PH, to meet the requirement of follow-up anaerobic and aerobic process.The premenstrual waste water for stating process in anaerobic processes, by the work of microorganism With larger molecular organicses further become small organic molecule, are that more favorable condition is created in subsequent bio oxidation.By biological oxygen Change is processed, and remaining most of Organic substances are removed, while going to denitrogenate the pollutant such as phosphorus.Waste water finally enters activated carbon or porous Ceramic aggregate biological filter tower, in the presence of microorganism, particularly rhodopseudomonas, the pollution such as further organics removal and nitrogen phosphorus Thing, it is ensured that the waste water stably reaching standard discharge after process.
Relative to existing method, the outstanding advantages of the present invention are to adopt zinc powder reduction, by the persistent pollutant in waste water Destruction, is that subsequent biological treatment creates favorable conditions, so as to ensure the waste water stably reaching standard discharge after processing；Relative at other Metal deoxidization used in wastewater treatment, using CO2Replace now widely used sulphuric acid to make acidulant, do not introduce SO4 2-From Son, eliminates generation H2The material base of S, so as to avoid H2The pollution of S, while it also avoid SO4 2-To anaerobic and aerobic mistake The inhibitory action of microorganism in journey, greatly improves the efficiency of biological treatment；Boiler is all had in Radix Ipomoeae Alcohol Plant, and fuel combustion is produced CO2Waste gas can make full use of, and can not only reduce processing cost, and can reduce carbon emission；Waste water energy after process is stable Qualified discharge, with obvious economic benefit and environmental benefit.
Specific implementation method
Embodiment 1：1m is processed daily3Radix Ipomoeae alcohol waste water（Composition： CODCr38500 mg/L、T-N42.2m/L、 SS28000mg/L, T-P4.5mg/L, colourity 750）, Jing solid-liquor separations, zinc powder reduction（10min、40℃、CO2Pressure 0.6MPa, every liter of waste water add zinc powder 15g, the ultrasonic power 4kW of every cubic metre of waste water input）, anaerobism（pH8.5、72h、25 DEG C~35 DEG C）, it is aerobic（4h）And biological filtering tower combined working（Porous ceramic grain packing layer gross thickness 1m, hydraulic load 50m3/m2.d）Go out after process The COD of waterCrFor 49mg/L, T-N6.2mg/L, T-P0.4mg/L, colourity 22.
Embodiment 2：5m is processed daily3Radix Ipomoeae alcohol waste water（Composition:CODCr40500 mg/L、T-N45.1m/L、 SS31500mg/L, T-P4.2mg/L, colourity 780）, Jing solid-liquor separations, zinc powder reduction（25min、25℃、CO2Pressure 0.1MPa, every liter of waste water add zinc powder 5g, the ultrasonic power 2kW of every cubic metre of waste water input）, anaerobism（pH7.0、24h、35 DEG C~55 DEG C）, it is aerobic（6h）And biological filtering tower combined working（Active carbon filler layer gross thickness 2m, hydraulic load 150m3/m2.d）Go out after process The COD of waterCrFor 44mg/L, T-N6.7mg/L, T-P0.4mg/L, colourity 25.

Claims (1)

1. a kind of processing method of Radix Ipomoeae alcohol waste water, it is characterised in that Radix Ipomoeae alcohol waste water is carried out into solid-liquor separation, is isolated Waste water enter regulating reservoir, the solid isolated makees feedstuff, and the Radix Ipomoeae alcohol waste water after adjusted pond is adjusted sends into pressure reaction Cleaning zinc powder is added reactor, and is passed through industrial CO by device2Reacted, the granularity of zinc powder is less than 180 mesh, and every liter of waste water adds Enter zinc powder 5g~30g, the stirring reaction time is 10min~40min under ul-trasonic irradiation, and reaction temperature is 25 DEG C~60 DEG C, CO2Pressure be 0.1MPa~0.6MPa, the ultrasonic power of every cubic metre of waste water input is 2kW~8kW, reacted waste water Solid-liquor separation is carried out, the zinc powder Returning reactor isolated, the waste water lime cream or other alkaline matters after solid-liquor separation are adjusted Its pH value is saved to 7.0~8.5, subsequently into anaerobic reactor, waste water stops 24h~120h, anaerobism temperature in anaerobic reactor For 25 DEG C~55 DEG C, into the process of biology aerobic pond room temperature, the Aerobic Process for Treatment time is 4h~12h to the waste water after anaerobism, aerobic place Waste water after reason enters sedimentation tank, and the sedimentation time is 1h~3h, irregularly extracts sludge out from sedimentation tank and is filtered, and filter cake is made General disposition of solid waste, filtrate return Aerobic Pond, and the supernatant waste water of sedimentation tank send multi-layer biological filter tower to process, biological filtering tower combined working Filler be activated carbon or porous ceramic grain, filler gross thickness is 1m~3m, during the dominant bacteria of biological filtering tower combined working is photosynthetic bacteria Rhodopseudomonas, the hydraulic load of biological filtering tower combined working is 50 m3/m2.d~150m3/m2.d, biological filtering tower combined working standard water discharge discharge or Reuse.
CN201611255021.3A 2016-12-30 2016-12-30 Sweet potato alcohol wastewater treatment method Pending CN106673323A (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101665311A (en) * 2009-09-24 2010-03-10 中南大学 Catalysis and micro-electrolysis combined technology for high-concentration refractory organic wastewater

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101665311A (en) * 2009-09-24 2010-03-10 中南大学 Catalysis and micro-electrolysis combined technology for high-concentration refractory organic wastewater

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Application publication date: 20170517