CN102154373B - Treatment method of itaconic acid waste residue - Google Patents
Treatment method of itaconic acid waste residue Download PDFInfo
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- CN102154373B CN102154373B CN201010617067.1A CN201010617067A CN102154373B CN 102154373 B CN102154373 B CN 102154373B CN 201010617067 A CN201010617067 A CN 201010617067A CN 102154373 B CN102154373 B CN 102154373B
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- itaconic acid
- waste residue
- acid waste
- natural pond
- residue
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- 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
Abstract
The invention discloses a treatment method of itaconic acid waste residue, which comprises the following steps: abundantly mixing itaconic acid waste residue with industrial waste water in proportion, adjusting the PH value, the chemic oxygen requirement and the temperature of mixture, and remaining for 24 hours to obtain mixed solution; and performing the anaerobic digestion on the mixed solution to obtain methane gas and methane residue. The treatment method is used for performing the anaerobic digestion on the taconic acid waste residue and abundantly decomposing the taconic acid waste residue under a certain condition to obtain the methane gas and the methane residue. The methane gas can be further used for electricity generation, boiler combustion and the like, and the methane residue can be further treated to be an organic fertilizer, therefore, the cyclic utilization of the resource is realized, the energy sources are saved, the pollution is reduced, the environmental benefit and the social benefit are good, and the use ratio of the itaconic acid waste residue is greatly improved.
Description
Technical field
The present invention relates to a kind of method of utilizing itaconic acid waste residue Biogas, relate in particular to a kind for the treatment of process of itaconic acid waste residue.
Background technology
Methylene-succinic acid is the binary unsaturated organic acid that a kind of purposes is wider, and nature exists less, and nowadays prepared by multiplex fermentation method.In process of production, produced a large amount of itaconic acid waste residues such as methylene-succinic acid albumen slag, itaconic acid mycelia, this class material contaminative is stronger, can not directly abandon, otherwise can cause serious pollution.The technique that does not also fully utilize at present itaconic acid waste residue, as can be seen here, prior art needs further improvement and develops.
Summary of the invention
The present invention provides a kind for the treatment of process of itaconic acid waste residue for solving the defect existing in prior art, itaconic acid waste residue is carried out to scientific and reasonable processing, to improve the utilization ratio of itaconic acid waste residue.
In order to solve the problems of the technologies described above, the present invention program comprises:
A treatment process for itaconic acid waste residue, it comprises the following steps:
A, itaconic acid waste residue is fully mixed in proportion with industrial sewage, and regulate its Ph value, chemical oxygen demand (COD), temperature, indwelling twenty four hours, obtains mixing solutions;
B, above-mentioned mixing solutions is carried out to anaerobically fermenting, obtain biogas and natural pond slag.
Described treatment process, wherein, in above-mentioned steps A, the mass ratio of itaconic acid waste residue and trade effluent is 1: 1, and Ph value is 5-7, and chemical oxygen demand (COD) is 80000mg/L-160000mg/L, and temperature is 30 DEG C-35 DEG C.
Described treatment process, wherein, in above-mentioned steps B, mixing solutions carries out anaerobically fermenting 30 days, and the temperature of anaerobically fermenting is 30 DEG C-35 DEG C.
Described treatment process, wherein, above-mentioned itaconic acid waste residue is itaconic acid mycelia, methylene-succinic acid albumen slag or both mixtures.
Described treatment process, wherein, the biogas obtaining in above-mentioned steps B is stored in gas holder after processing through steam separator dehydration, thionizer desulfurization successively.
Described treatment process, wherein, the natural pond slag obtaining in above-mentioned steps B separates through solid-liquid separating machine, obtains natural pond liquid and dehydration natural pond slag, and natural pond liquid is recovered in the mixed solution in steps A.
Described treatment process, wherein, above-mentioned steps A carries out in wastewater equalization pond, and described step B carries out in anaerobic reactor.
The treatment process of a kind of itaconic acid waste residue provided by the invention, itaconic acid waste residue is carried out to anaerobism place fermentative processing under certain condition, itaconic acid waste residue is fully decomposed, obtain biogas and natural pond slag, biogas can be further used for generating, boiler combustion etc., natural pond slag can be further processed as organic fertilizer, realize the recycle of resource, saved the energy, reduced pollution, there is good environmental benefit and social benefit, increased substantially the utilization ratio of itaconic acid waste residue.
Brief description of the drawings
Fig. 1 is the general flow chart of methylene-succinic acid waste slag treatment method in the present invention.
Embodiment
The invention provides a kind for the treatment of process of itaconic acid waste residue, in order to make object of the present invention, technical scheme and advantage clearer, clear and definite, below with reference to accompanying drawing and embodiment, the present invention is described in more detail.
The invention provides a kind for the treatment of process of itaconic acid waste residue, after itaconic acid waste residue is mixed with trade effluent, carry out anaerobically fermenting processing, obtain biogas and natural pond slag, improved the utilization ratio of itaconic acid waste residue.As shown in Figure 1, it mainly comprises the following steps:
A, itaconic acid waste residue is fully mixed in proportion with industrial sewage, and regulate its Ph value, chemical oxygen demand (COD), temperature, indwelling twenty four hours, obtains mixing solutions;
B, above-mentioned mixing solutions is carried out to anaerobically fermenting, obtain biogas and natural pond slag;
C, the biogas obtaining in step b is stored in gas holder after processing through steam separator dehydration, thionizer desulfurization successively, for generating, boiler combustion etc.;
D, the natural pond slag obtaining in step b is separated through solid-liquid separating machine, obtain natural pond liquid and dehydration natural pond slag, natural pond liquid is recovered to the mixed solution in step a, and dehydration natural pond slag is for the manufacture of organic fertilizer.
In above-mentioned steps a, the mass ratio of itaconic acid waste residue and trade effluent is 1: 1, and Ph value is 5-7, and chemical oxygen demand (COD) is 80000mg/L-160000mg/L, and temperature is 30 DEG C-35 DEG C.
In above-mentioned steps b, mixing solutions carries out anaerobically fermenting 30 days, and the temperature of anaerobically fermenting is 30 DEG C-35 DEG C.
Above-mentioned itaconic acid waste residue is itaconic acid mycelia, methylene-succinic acid albumen slag or both mixtures.
Above-mentioned steps a carries out in wastewater equalization pond, and described step b carries out in anaerobic reactor.
Known by above description, itaconic acid waste residue is carried out to anaerobically fermenting processing under certain condition, and the biogas obtaining, for fields such as generating, boiler combustions, has been realized the recycle of resource, the natural pond slag obtaining can be made as organic fertilizer, has improved the utilization ratio of itaconic acid waste residue.
Embodiment 1
1000 kilograms of methylene-succinic acid albumen slags are fully mixed in wastewater equalization pond with 1000 kilograms of trade effluents, be 6 in Ph value, temperature is under 32 DEG C of conditions, in wastewater equalization pond, stop and within 24 hours, form the mixing solutions that chemical oxygen demand (COD) is 160000mg/L, so this mixing solutions is injected to continuously stirring formula anaerobic reactor, 35 DEG C of condition bottom fermentations 30 days, obtain biogas and natural pond slag, biogas is entered after liquid packing to steam separator and remove water of condensation, then enter thionizer and slough hydrogen sulfide, prevent that follow-up unit is corroded, dry, biogas after desulfurization enters biogas cabinet, enter biogas generator generating through spark arrester, also can be by biogas for boiler combustion, natural pond slag solid-liquid separating machine is separated, obtain natural pond liquid and dehydration natural pond slag, natural pond liquid is recovered in above-mentioned mixing solutions, and dehydration natural pond slag is for the manufacture of organic fertilizer.Realized the recycle of methylene-succinic acid albumen slag, improved the utilization ratio of methylene-succinic acid albumen slag, the utilization ratio that makes methylene-succinic acid albumen slag is 85%-95%.Condition in certain above-mentioned flow process can be adjusted in suitable scope, and such as being 5 or 7 in Ph value, temperature can be 30 DEG C, 31 DEG C, 33 DEG C, 34 DEG C or 35 DEG C, and chemical oxygen demand (COD) can be 140000mg/L.
Embodiment 2
3500 kilograms of itaconic acid mycelias are fully mixed in wastewater equalization pond with 3500 kilograms of trade effluents, be 7 in Ph value, temperature is under 35 DEG C of conditions, in wastewater equalization pond, stop and within 24 hours, form the mixing solutions that chemical oxygen demand (COD) is 80000mg/L, so this mixing solutions is injected to continuously stirring formula anaerobic reactor, 33 DEG C of condition bottom fermentations 30 days, obtain biogas and natural pond slag, biogas is entered after liquid packing to steam separator and remove water of condensation, then enter thionizer and slough hydrogen sulfide, prevent that follow-up unit is corroded, dry, biogas after desulfurization enters biogas cabinet, enter biogas generator generating through spark arrester, also can be by biogas for boiler combustion, natural pond slag solid-liquid separating machine is separated, obtain natural pond liquid and dehydration natural pond slag, natural pond liquid is recovered in above-mentioned mixing solutions, and dehydration natural pond slag is for the manufacture of organic fertilizer.Realized the recycle of itaconic acid mycelia, improved the utilization ratio of itaconic acid mycelia, the utilization ratio that makes itaconic acid mycelia is 90%-96%.Condition in certain above-mentioned flow process can be adjusted in suitable scope, and such as being 6 or 7 in Ph value, temperature can be 30 DEG C, 31 DEG C, 32 DEG C, 33 DEG C or 34 DEG C, and chemical oxygen demand (COD) can be 90000mg/L.
In embodiment 1 and embodiment 2, can also be wastewater equalization pond, the heat supply of continuously stirring formula anaerobic reactor for boiler combustion by the biogas obtaining, to maintain the temperature of mixed solution, further improve the utilization ratio of methylene-succinic acid albumen slag.
Should be understood that; the above-mentioned description for preferred embodiment is comparatively detailed; can not therefore think the restriction to scope of patent protection of the present invention; those of ordinary skill in the art is under enlightenment of the present invention; do not departing from the scope situation that the claims in the present invention protect; can also make the various deformation such as replacement, simple combination, within these all fall into protection scope of the present invention, request protection domain of the present invention should be as the criterion with claims.
Claims (2)
1. a treatment process for itaconic acid waste residue, it comprises the following steps:
A, itaconic acid waste residue is fully mixed in proportion with industrial sewage, and regulate its Ph value, chemical oxygen demand (COD), temperature, indwelling twenty four hours, obtains mixing solutions;
B, above-mentioned mixing solutions is carried out to anaerobically fermenting, obtain biogas and natural pond slag;
In above-mentioned steps A, the mass ratio of itaconic acid waste residue and trade effluent is 1: 1, and Ph value is 5-7, and chemical oxygen demand (COD) is 80000mg/L-160000mg/L, and temperature is 30 DEG C-35 DEG C;
In above-mentioned steps B, mixing solutions carries out anaerobically fermenting 30 days, and the temperature of anaerobically fermenting is 30 DEG C-35 DEG C;
Above-mentioned itaconic acid waste residue is the mixture of itaconic acid mycelia and methylene-succinic acid albumen slag;
The natural pond slag obtaining in above-mentioned steps B separates through solid-liquid separating machine, obtains natural pond liquid and dehydration natural pond slag, and natural pond liquid is recovered in the mixed solution in steps A;
Above-mentioned steps A carries out in wastewater equalization pond, and described step B carries out in anaerobic reactor.
2. treatment process according to claim 1, is characterized in that: the biogas obtaining in above-mentioned steps B is stored in gas holder after processing through steam separator dehydration, thionizer desulfurization successively.
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| CN102586333B (en) * | 2012-01-16 | 2016-03-30 | 北京化工大学 | A kind of method being improved stalk marsh gas output and reduction of discharging natural pond liquid by the circulation of natural pond liquid |
| CN103254019B (en) * | 2013-05-16 | 2015-02-18 | 辽宁普天科技有限公司 | Method for preparing soil conditioner by using ultrafiltration egg white dregs |
| CN105174622A (en) * | 2015-09-16 | 2015-12-23 | 杭州鼎隆环保科技有限公司 | System and method suitable for treating high concentration organic wastewater |
| CN105174621A (en) * | 2015-09-16 | 2015-12-23 | 杭州鼎隆环保科技有限公司 | System and method for treating wastewater by applying activated sludge |
| CN110482816B (en) * | 2019-08-29 | 2022-02-22 | 合肥徽锐工程科技有限公司 | Dehydrated sludge dry fermentation treatment device and method |
| CN112676318B (en) * | 2021-01-04 | 2022-04-19 | 尹海 | Resource utilization method for household garbage |
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