CN106673354A - Method for treating wastewater produced in production of acetone, butanol and ethyl alcohol - Google Patents

Method for treating wastewater produced in production of acetone, butanol and ethyl alcohol Download PDF

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Publication number
CN106673354A
CN106673354A CN201611259087.XA CN201611259087A CN106673354A CN 106673354 A CN106673354 A CN 106673354A CN 201611259087 A CN201611259087 A CN 201611259087A CN 106673354 A CN106673354 A CN 106673354A
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CN
China
Prior art keywords
waste water
solid
zinc powder
propyl
total solvent
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Pending
Application number
CN201611259087.XA
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Chinese (zh)
Inventor
龙炳清
韩燕霜
孙彦君
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Sichuan Normal University
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Sichuan Normal University
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Priority to CN201611259087.XA priority Critical patent/CN106673354A/en
Publication of CN106673354A publication Critical patent/CN106673354A/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
    • 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
    • C02F2101/32—Hydrocarbons, e.g. oil
    • C02F2101/322—Volatile compounds, e.g. benzene
    • 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

Abstract

The invention introduces a method for treating wastewater produced in the production of acetone, butanol and ethyl alcohol. The method comprises separation of solid and liquid, CO2 pressurized reduction of a zinc powder, anaerobic treatment, aerobic treatment, biological filtration tower treatment and the like, and the treated wastewater can be stably discharged to reach the standard.

Description

Propyl-butyl total solvent produces the processing method of waste water
Technical field
A kind of processing method of the waste water the present invention relates to be produced as main material production propyl-butyl total solvent with Ipomoea batatas.
Background technology
Acetone, butanol, ethanol are referred to as propyl-butyl total solvent, are medicine, agricultural chemicals, plastics, paint, national defence and light industry Important source material, early stage is mainly that raw material produces propyl-butyl total solvent with oil.The third fourth to be produced using biomass ferment always molten in recent years Agent has turned into a kind of development trend.Ipomoea batatas is one of primary raw material of production propyl-butyl total solvent, the organic wastewater that its production is produced Middle pollutant COD concentration is high, and complicated component, intractability is big.If the waste water is not processed is directly discharged into environment, environment will be caused Severe contamination.The processing method of the waste water produced currently with Ipomoea batatas production propyl-butyl total solvent is mainly biological treatment.Due to Contain persistence organic pollutant in the waste water（Containing phenyl ring and（Or）Heterocycle organic matter）, it is main former especially with fresh sweet potatoes During material, the concentration of persistence organic pollutant is higher, thereby results in the Biochemical method waste water it is difficult to stably reaching standard is discharged.Exploitation The processing method of the waste water that the utilization Ipomoea batatas production propyl-butyl total solvent of energy stably reaching standard discharge is produced has larger practical value.
The content of the invention
It is of the invention for the problem that the processing method of the waste water produced currently with Ipomoea batatas production propyl-butyl total solvent is present Purpose is the processing method of the propyl-butyl total solvent waste water for finding energy stably reaching standard discharge, it is characterised in that by propyl-butyl total solvent waste water Solid-liquor separation is carried out, the waste water isolated enters regulating reservoir, the solid comprehensive utilization isolated.The third fourth after adjusted pond regulation Total solvent waste water sends into voltage-resistant reactor, cleaning zinc powder is added into reactor, and be passed through industrial CO2Reacted, the grain of zinc powder Degree is less than 180 mesh, and every liter of waste water adds zinc powder 5g~30g, and the stirring reaction time is 1h~3h, and reaction temperature is 25 DEG C~60 DEG C, CO2Pressure be 0.1MPa~0.6MPa.Reacted waste water carries out solid-liquor separation, the zinc powder Returning reactor isolated. Waste water milk of lime or other alkaline matters after solid-liquor separation adjust its pH value to 7.0~8.5, subsequently into anaerobic reaction Device.Waste water stops 24h~120h in anaerobic reactor, and anaerobism temperature is 25 DEG C~55 DEG C.Waste water after anaerobism enters biological good The normal temperature treatment of oxygen pond, the Aerobic Process for Treatment time is 4h~12h.Waste water after Aerobic Process for Treatment enters sedimentation basin, the sedimentation time be 1h~ 3h.Irregularly extract sludge out from sedimentation basin to be filtered, filter cake makees general disposition of solid waste, filtrate returns to Aerobic Pond. The supernatant waste water of sedimentation basin send multi-layer biological filter tower to process.The filler of biological filtering tower combined working is activated carbon or porous ceramic grain, per thickness degree It is 0.5m~1.0m, gross thickness is 1m~3m.The dominant bacteria of biological filtering tower combined working 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 water outlet of biological filtering tower combined working reaches Mark discharge or reuse.
The object of the present invention is achieved like this, and the solid matter of propyl-butyl total solvent waste water is more, is entering zinc powder reduction Before reactor, 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 Recycle.After waste water enters Zinc Powder Reduction device, the larger molecular organicses in waste water, particularly persistence organic pollutant （Containing 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 Biochemical treatment creates favorable conditions.It is passed through pressure CO2Purpose be maintain the suitable pH value of zinc powder reduction（2.0~5.0）, reduction Waste water milk of lime or other alkaline matters afterwards adjusts its pH, to meet the requirement of follow-up anaerobic and aerobic process.Through foregoing In anaerobic processes, by the effect of microorganism, larger molecular organicses further become small organic molecule to the waste water for the treatment of, are More favorable condition is created in subsequent bio oxidation.Processed by biological oxidation, remaining most of organic matters are removed, while removal The pollutants such as nitrogen phosphorus.Waste water finally enters activated carbon or porous ceramic grain biological filtering tower combined working, in microorganism, particularly red pseudomonas Under effect, 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 propyl-butyl total solvent factory, and fuel combustion is produced Raw CO2Waste gas can make full use of, and can not only reduce processing cost, and can reduce carbon emission；Waste water energy after treatment is steady Qualified discharge is determined, with obvious economic benefit and environmental benefit.
Specific implementation method
Embodiment 1：1m is processed daily3Propyl-butyl total solvent waste water（Composition：CODCr39000 mg/L、T-N40.8 mg/L、 SS29000mg/L T-P4.2mg/L, colourity 720）, 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 48mg/L, T-N6.2mg/L, T-P0.4mg/L, Colourity 24.
Embodiment 2：5m is processed daily3Propyl-butyl total solvent waste water（Composition: CODCr41000 mg/L、T-N38.5mg/L、 SS31500mg/L, T-P4.7mg/L, colourity 760）, 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 52mg/L, T-N5.0mg/L, T-P0.4mg/L, Colourity 26.

Claims (1)

1. a kind of utilization Ipomoea batatas is the processing method of the waste water that main material production propyl-butyl total solvent is produced, it is characterised in that will Propyl-butyl total solvent waste water carries out solid-liquor separation, and the waste water isolated enters regulating reservoir, the solid comprehensive utilization isolated, adjusted Propyl-butyl total solvent waste water feeding voltage-resistant reactor after the regulation of pond, adds reactor, and be passed through industrial CO by cleaning zinc powder2Carry out Reaction, the granularity of zinc powder is less than 180 mesh, and every liter of waste water adds zinc powder 5g~30g, and the stirring reaction time is 1h~3h, reaction temperature Spend for 25 DEG C~60 DEG C, CO2Pressure be 0.1MPa~0.6MPa, reacted waste water carries out solid-liquor separation, the zinc isolated Powder Returning reactor, waste water milk of lime or other alkaline matters after solid-liquor separation adjust its pH value to 7.0~8.5, then Into anaerobic reactor, waste water stops 24h~120h in anaerobic reactor, and anaerobism temperature is 25 DEG C~55 DEG C, useless after anaerobism Water is processed into biology aerobic pond normal temperature, and the Aerobic Process for Treatment time is 4h~12h, and the waste water after Aerobic Process for Treatment enters sedimentation basin, is sunk The shallow lake time is 1h~3h, irregularly extracts sludge out from sedimentation basin and is filtered, and filter cake makees general disposition of solid waste, filtrate Aerobic Pond is returned to, the supernatant waste water of sedimentation basin send multi-layer biological filter tower to process, and the filler of biological filtering tower combined working is activated carbon or porous pottery Grain, filler gross thickness is 1m~3m, and the dominant bacteria of biological filtering tower combined working is the red pseudomonas in photosynthetic bacteria, the water of biological filtering tower combined working Power load is 50 m3/m2.d~150m3/m2.d, the standard water discharge discharge or reuse of biological filtering tower combined working.
CN201611259087.XA 2016-12-30 2016-12-30 Method for treating wastewater produced in production of acetone, butanol and ethyl alcohol Pending CN106673354A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01224096A (en) * 1988-03-04 1989-09-07 Kurita Water Ind Ltd Treatment of organic waste water
CN101234812A (en) * 2008-02-05 2008-08-06 中国科学院沈阳应用生态研究所 Method for decoloring burned waste water by using zero-valent iron/ultrasonic wave synergistic reaction
CN102757158A (en) * 2012-08-07 2012-10-31 常州大学 Residence community domestic sewage treating system and method
CN103755102A (en) * 2014-01-24 2014-04-30 常州大学 Garlic wastewater treatment method and device
CN104986919A (en) * 2015-06-29 2015-10-21 常州大学 Wastewater advanced treatment system for corn processing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01224096A (en) * 1988-03-04 1989-09-07 Kurita Water Ind Ltd Treatment of organic waste water
CN101234812A (en) * 2008-02-05 2008-08-06 中国科学院沈阳应用生态研究所 Method for decoloring burned waste water by using zero-valent iron/ultrasonic wave synergistic reaction
CN102757158A (en) * 2012-08-07 2012-10-31 常州大学 Residence community domestic sewage treating system and method
CN103755102A (en) * 2014-01-24 2014-04-30 常州大学 Garlic wastewater treatment method and device
CN104986919A (en) * 2015-06-29 2015-10-21 常州大学 Wastewater advanced treatment system for corn processing

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
冯晓西等: "《精细化工废水治理技术》", 31 March 2000, 北京：化学工业出版社 *
张小凡等: "《环境微生物学》", 30 April 2013, 上海交通大学出版社 *
湖南省爱国卫生运动委员会办公室等编: "《爱国卫生运动工作手册》", 31 July 1986, 湖南人民出版社 *
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Application publication date: 20170517