CN106673314A - Treatment method of sweet potato alcohol wastewater - Google Patents

Treatment method of sweet potato alcohol wastewater Download PDF

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Publication number
CN106673314A
CN106673314A CN201611254393.4A CN201611254393A CN106673314A CN 106673314 A CN106673314 A CN 106673314A CN 201611254393 A CN201611254393 A CN 201611254393A CN 106673314 A CN106673314 A CN 106673314A
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China
Prior art keywords
waste water
solid
aluminium powder
radix ipomoeae
combined working
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Pending
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CN201611254393.4A
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Chinese (zh)
Inventor
龙炳清
邓其娟
聂付江
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Sichuan Normal University
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Sichuan Normal University
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Priority to CN201611254393.4A priority Critical patent/CN106673314A/en
Publication of CN106673314A publication Critical patent/CN106673314A/en
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/62—Carbon oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • 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
    • 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
    • C02F2103/32—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters
    • C02F2103/325—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters from processes relating to the production of wine products
    • 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
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/16—Total nitrogen (tkN-N)
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/18—PO4-P
    • 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
    • C02F3/02—Aerobic processes
    • C02F3/10—Packings; Fillings; Grids
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Physical Water Treatments (AREA)

Abstract

The invention provides a treatment method of sweet potato alcohol wastewater. The treatment method comprises the following procedures of carrying out solid-liquid separation, reducing by CO2 pressurized aluminum powder under the action of ultrasonic waves, carrying out anaerobic treatment, carrying out aerobic treatment, treating by a biological filter tower and the like; treated wastewater can stably reach emission standards and then is discharged.

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 one of primary raw material of production 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, Biochemical method Radix Ipomoeae alcohol waste water is thereby resulted in it is difficult to 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 into solid-liquor separation, the waste water isolated is entered Regulating reservoir, the solid isolated makees feedstuff.Radix Ipomoeae alcohol waste water after adjusted pond is adjusted sends into voltage-resistant reactor, will clean aluminum Powder adds reactor, and is passed through industrial CO2Reacted.The granularity of aluminium powder is less than 180 mesh, every liter of waste water add aluminium powder 5g~ 30g.The stirring reaction time is 10min~40min under ul-trasonic irradiation.Reaction temperature is 25 DEG C~60 DEG C. CO2Pressure For 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 consolidates Separate, the aluminium powder Returning reactor isolated.Waste water lime cream or other alkaline matters after solid-liquor separation adjusts its pH value To 7.0~8.5, subsequently into anaerobic reactor.Waste water anaerobic reactor stop 24h~120h, anaerobism temperature be 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.It is useless after Aerobic Process for Treatment Water enters sedimentation tank, and the sedimentation time is 1h~3h.Irregularly extract sludge out from sedimentation tank to be filtered, filter cake makees general solid Waste treatment, 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 Activated carbon or porous ceramic grain, are 0.5m~1.0m per thickness degree, and gross thickness is 1m~3m.The dominant bacteria of biological filtering tower combined working is photosynthetic Rhodopseudomonas in antibacterial（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 aluminum reduction Before answering device, solid-liquor separation is carried out, it is to avoid impact of the solid matter to aluminum reduction, be also beneficial to the complete aluminium powder of unreacted and reclaim again Utilize.Waste water is entered after aluminum reduction reactor, 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 aluminum reduction is produced, be follow-up life Change is processed and created favorable conditions.It is passed through pressure CO2Purpose be to maintain the suitable pH value of aluminum 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 it 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 aluminum 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 stablized 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, aluminum reduction（10min、40℃、CO2Pressure The ultrasonic power 4kW that 0.6MPa, every liter of waste water add aluminium powder 15g, every cubic metre of waste water to be input into）, 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 58mg/L, T-N7.7mg/L, T-P0.3mg/L, colourity 26.
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, aluminum reduction（25min、25℃、CO2Pressure The ultrasonic power 2kW that 0.1MPa, every liter of waste water add aluminium powder 5g, every cubic metre of waste water to be input into）, 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 63mg/L, T-N8.3mg/L, T-P0.3mg/L, colourity 28.

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 Device, by cleaning aluminium powder reactor is added, and is passed through industrial CO2Reacted, the granularity of aluminium powder is less than 180 mesh, and every liter of waste water adds Enter aluminium 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 aluminium powder Returning reactor isolated, the waste water lime cream or other alkaline matters after solid-liquor separation is 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 returns 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, and the dominant bacteria of biological filtering tower combined working is in 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.
CN201611254393.4A 2016-12-30 2016-12-30 Treatment method of sweet potato alcohol wastewater Pending CN106673314A (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