CN106746240A - The processing method of Ipomoea batatas alcohol waste water - Google Patents

The processing method of Ipomoea batatas alcohol waste water Download PDF

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Publication number
CN106746240A
CN106746240A CN201611254412.3A CN201611254412A CN106746240A CN 106746240 A CN106746240 A CN 106746240A CN 201611254412 A CN201611254412 A CN 201611254412A CN 106746240 A CN106746240 A CN 106746240A
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CN
China
Prior art keywords
waste water
ipomoea batatas
zinc powder
solid
treatment
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Pending
Application number
CN201611254412.3A
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Chinese (zh)
Inventor
龙炳清
王杰才
龚婕
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Sichuan Normal University
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Sichuan Normal University
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Priority to CN201611254412.3A priority Critical patent/CN106746240A/en
Publication of CN106746240A publication Critical patent/CN106746240A/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
    • C02F1/66—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
    • C02F2303/00—Specific treatment goals
    • C02F2303/24—Separation of coarse particles, e.g. by using sieves or screens
    • 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

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  • 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)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The processing method of the Ipomoea batatas alcohol waste water that the present invention is introduced includes solid-liquor separation, CO2The operations such as pressurization zinc powder reduction, anaerobism, the treatment of aerobic and biological filtering tower combined working, the waste water after treatment can stably reaching standard discharge.

Description

The processing method of Ipomoea batatas alcohol waste water
Technical field
The present invention relates to a kind of processing method of Ipomoea batatas alcohol waste water.
Background technology
Ipomoea batatas is one of primary raw material of production alcohol, 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 Ipomoea batatas alcohol waste water（Containing benzene Ring and（Or）Heterocycle organic matter）, during especially with fresh sweet potatoes for primary raw material, the concentration of persistence organic pollutant is higher, Biochemical method Ipomoea batatas alcohol waste water is thereby resulted in it is difficult to stably reaching standard is discharged.The Ipomoea batatas alcohol 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 Ipomoea batatas alcohol method of wastewater treatment, the purpose of the present invention is to find energy stably reaching standard discharge The processing method of Ipomoea batatas alcohol waste water, it is characterised in that Ipomoea batatas alcohol waste water is carried out into solid-liquor separation, the waste water isolated enters Regulating reservoir, the solid isolated makees feed.Ipomoea batatas alcohol waste water feeding voltage-resistant reactor after adjusted pond regulation, 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, the stirring reaction time be 1h~3h, reaction temperature be 25 DEG C~60 DEG C, CO2Pressure be 0.1MPa~0.6MPa.Reaction Waste water afterwards carries out solid-liquor separation, the zinc powder Returning reactor isolated.Waste water milk of lime or other alkali after solid-liquor separation Property material adjusts its pH value to 7.0~8.5, subsequently into anaerobic reactor.Waste water stops 24h~120h in anaerobic reactor, Anaerobism temperature is 25 DEG C~55 DEG C.Waste water after anaerobism into the treatment of biology aerobic pond normal temperature, the Aerobic Process for Treatment time be 4h~ 12h.Waste water after Aerobic Process for Treatment enters sedimentation basin, and the sedimentation time is 1h~3h.Irregularly extracting sludge out from sedimentation basin is carried out Filtering, filter cake makees general disposition of solid waste, and filtrate returns to Aerobic Pond.The supernatant waste water of sedimentation basin is sent at multi-layer biological filter tower Reason.The filler of biological filtering tower combined working is activated carbon or porous ceramic grain, is 0.5m~1.0m per thickness degree, and gross thickness is 1m~3m.It is biological The dominant bacteria of filter tower is the red pseudomonas in photosynthetic bacteria（Rhodopseudomonas）.The hydraulic load of biological filtering tower combined working is 50 m3/m2.d~150m3/m2.d.The standard water discharge discharge or reuse of biological filtering tower combined working.
The object of the present invention is achieved like this, and the solid matter of Ipomoea batatas alcohol waste water is more, and entering, zinc powder reduction is anti- Before answering device, solid-liquor separation is carried out, it is to avoid influence 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 matter of heterocycle etc.）Destroyed by the effect of the strong reduction free radical that zinc powder reduction is produced, be follow-up life Change treatment creates favorable conditions.It is passed through pressure CO2Purpose be maintain the suitable pH value of zinc powder reduction（2.0~5.0）, after reduction Waste water milk of lime or other alkaline matters adjust its pH, to meet the requirement of follow-up anaerobic and aerobic process.Through foregoing place In anaerobic processes, by the effect of microorganism, larger molecular organicses further become small organic molecule to the waste water of reason, after being Continuous biological oxidation creates more favorable condition.Processed by biological oxidation, remaining most of organic matters are removed, while going to denitrogenate The pollutants such as phosphorus.Waste water finally enters activated carbon or porous ceramic grain biological filtering tower combined working, in the work of microorganism, particularly red pseudomonas Under, the pollutant such as further organics removal and nitrogen phosphorus, it is ensured that the waste water stably reaching standard discharge after treatment.
Relative to existing method, outstanding advantages of the invention are to use 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 treatment；Relative at other The metal deoxidization used in wastewater treatment, using CO2Make acidulant instead of now widely used sulfuric acid, 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 Ipomoea batatas 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 stabilization after treatment Qualified discharge, with obvious economic benefit and environmental benefit.
Specific implementation method
Embodiment 1：1m is processed daily3Ipomoea batatas alcohol waste water（Composition： CODCr38500 mg/L、T-N42.2m/L、 SS28000mg/L, T-P4.5mg/L, colourity 750）, through solid-liquor separation, zinc powder reduction（1h、40℃、CO2It is pressure 0.6MPa, every Rise waste water and add zinc powder 15g）, anaerobism（PH8.5,72h, 25 DEG C~35 DEG C）, it is aerobic（4h）And biological filtering tower combined working（Porous ceramic grain filler Layer gross thickness 1m, hydraulic load 50m3/m2.d）The COD of water outlet after treatmentCrFor 54mg/L, T-N6.9mg/L, T-P0.4mg/L, Colourity 23.
Embodiment 2：5m is processed daily3Ipomoea batatas alcohol waste water（Composition:CODCr40500 mg/L、T-N45.1m/L、 SS31500mg/L, T-P4.2mg/L, colourity 780）, through solid-liquor separation, zinc powder reduction（2.5h、25℃、CO2Pressure 0.1MPa, Every liter of waste water adds zinc powder 5g）, 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）The COD of water outlet after treatmentCrFor 59mg/L, T-N7.1mg/L, T-P0.4mg/L, Colourity 24.

Claims (1)

1. a kind of processing method of Ipomoea batatas alcohol waste water, it is characterised in that Ipomoea batatas alcohol waste water is carried out into solid-liquor separation, is isolated Waste water enter regulating reservoir, the solid isolated makees feed, and the Ipomoea batatas alcohol waste water after adjusted pond regulation sends into pressure-resistant reaction Device, adds reactor, and be passed through industrial CO by cleaning zinc powder2Reacted, the granularity of zinc powder is less than 180 mesh, and every liter of waste water adds Entering zinc powder 5g~30g, the stirring reaction time is 1h~3h, reaction temperature is 25 DEG C~60 DEG C, CO2Pressure for 0.1MPa~ 0.6MPa, reacted waste water carries out solid-liquor separation, the zinc powder Returning reactor isolated, the waste water lime after solid-liquor separation Breast or other alkaline matters adjust its pH value to 7.0~8.5, and subsequently into anaerobic reactor, waste water is stopped in anaerobic reactor 24h~120h, anaerobism temperature is 25 DEG C~55 DEG C, and the waste water after anaerobism is processed into biology aerobic pond normal temperature, during Aerobic Process for Treatment Between be 4h~12h, the waste water after Aerobic Process for Treatment enters sedimentation basin, and the sedimentation time is 1h~3h, is irregularly extracted out from sedimentation basin Sludge is filtered, and filter cake makees general disposition of solid waste, and filtrate returns to Aerobic Pond, and the supernatant waste water of sedimentation basin send multilayer to give birth to The treatment of thing filter tower, the filler of biological filtering tower combined working is activated carbon or porous ceramic grain, and filler gross thickness is 1m~3m, the advantage of biological filtering tower combined working Strain is the red pseudomonas in photosynthetic bacteria, and the hydraulic load of biological filtering tower combined working is 50 m3/m2.d~150m3/m2.d, biological filter The standard water discharge discharge or reuse of tower.
CN201611254412.3A 2016-12-30 2016-12-30 The processing method of Ipomoea batatas alcohol waste water Pending CN106746240A (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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