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CN102745840B - A kind of method of turmeric saponin acid hydrolysis spent acid recycling - Google Patents

A kind of method of turmeric saponin acid hydrolysis spent acid recycling Download PDF

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Publication number
CN102745840B
CN102745840B CN201210269041.1A CN201210269041A CN102745840B CN 102745840 B CN102745840 B CN 102745840B CN 201210269041 A CN201210269041 A CN 201210269041A CN 102745840 B CN102745840 B CN 102745840B
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slurry
turmeric
acidolysis
saponin
turmeric saponin
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CN102745840A (en
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潘涔轩
刘闺华
成传德
汝振广
朱克松
窦广玉
周晓艳
赵�怡
孙长顺
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SHANYANG JINCHUAN FENGXING CHEMICAL CO Ltd
Chinese Research Academy of Environmental Sciences
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SHANYANG JINCHUAN FENGXING CHEMICAL CO Ltd
Chinese Research Academy of Environmental Sciences
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Abstract

The invention provides a method for recycling diosgenin saponin acidolysis waste acid, which comprises the following steps: (a) filtering hydrolyzed slurry of the diosgenin saponin in the industry to obtain a waste acid liquor; (b) smashing turmeric, concentrating obtained diosgenin saponin slurry to enable the solid content of the diosgenin saponin slurry to be more 10wt%, and sufficiently and directly mixing the waste acid liquor with the diosgenin saponin material with the solid content more than 10wt%; and (c) carrying out acidolysis on the mixed slurry by adopting a traditional acidolysis process so as to directly recycle reacted acid in the waste acid liquor. The method can be used for directly recycling the waste acid liquor to production without any treatment after the waste acid liquor is recovered, so the generation and drainage of 80%-90% of acid waste liquid are reduced.

Description

The method of a kind of turmeric saponin acidolysis spent acid reuse
Technical field
The present invention relates to the method for a kind of turmeric saponin acidolysis spent acid reuse, be applied to turmeric saponin processing industry hydrolyzate processing link.
Background technology
The traditional technology that turmeric saponin processing industry generally takes yellow ginger pulverizing-fermentation-acidolysis-hydrolyzate-saponin to extract at present.In this technique acidolysis process, can produce a large amount of acid solutions, because wherein acid content is low, be difficult to recycle, mostly directly discharge.
This spent acid solution belongs to high density containing sour organic waste water, and because saponin content in yellow ginger is on average in 6 ‰ left and right, one ton of saponin of every production will produce 200-400m 3spent acid solution.Its biodegradability is poor, acidity is high, sugar part content is high, COD surpasses 100,000 mg/L, does not have so far economically viable treatment technology and method, is the key problem that turmeric saponin processing waste water is difficult to qualified discharge.
Summary of the invention
Main purpose of the present invention is to provide a kind of method that in the acid waste liquid that turmeric saponin machining produces, low-concentration waste acid is recycled that realizes, and the spent acid solution that the method can produce hydrolysis slurry be back in production technique, reduces the discharge of the spent acid of 80-90%.
For achieving the above object, the present invention adopts following technical scheme:
A method for turmeric saponin acidolysis spent acid reuse, comprises the following steps:
A. the slurries filtration after acidolysis in turmeric saponin industry is obtained to spent acid solution;
B. the turmeric saponin slurry obtaining after yellow ginger fragmentation is concentrated, make more than its solid content reaches 10wt%, spent acid solution directly fully to be mixed with turmeric saponin material more than solid content 10wt%;
C. then mixed slurry is adopted traditional acidolysis process to carry out acidolysis, realize the direct reuse of residual acid in spent acid solution.
In aforesaid method, described spent acid solution is to filter gained acid waste liquid after turmeric saponin acidolysis.In step a, described filter type is conventional filtration, as: plate-and-frame filter press filtration and belt filter press filtration etc.In step b, the slurry of the simmer down to of turmeric saponin slurry after to yellow ginger fragmentation utilizes plate-and-frame filter press concentrated.The mass ratio that spent acid solution mixes with more than solid content 10wt% turmeric saponin slurry is 1:1-20:1.
The concentrated of described turmeric saponin slurry comprises the steps:
The concentrated method of material before turmeric saponin acidolysis, comprises the following steps:
A. at yellow ginger, clean after fragmentation, by physical method for separation, obtain robust fibre and lower concentration turmeric saponin slurry;
B. in slurry, add a certain proportion of flocculating aids, utilize plate-and-frame filter press to carry out filtering and concentrating, more than solid content is increased to 10wt%.
The concentrated method of material before turmeric saponin acidolysis, comprises the following steps:
A. at yellow ginger, clean after fragmentation, by physical method for separation, obtain robust fibre and lower concentration turmeric saponin slurry;
A1. lower concentration turmeric saponin slurry is carried out to fermentative processing;
B. in slurry, add a certain proportion of flocculating aids, utilize plate-and-frame filter press to carry out filtering and concentrating, more than solid content is increased to 10wt%.
The concentrated method of material before turmeric saponin acidolysis, comprises the following steps:
A. at yellow ginger, clean after fragmentation, by physical method for separation, obtain robust fibre and lower concentration turmeric saponin slurry;
A2. robust fibre is mixed with lower concentration turmeric saponin slurry, obtain mixed slurry;
B. in mixed slurry, add a certain proportion of flocculating aids, utilize plate-and-frame filter press to carry out filtering and concentrating, more than solid content is increased to 10wt%.
The concentrated method of material before turmeric saponin acidolysis, comprises the following steps:
A. at yellow ginger, clean after fragmentation, by physical method for separation, obtain robust fibre and lower concentration turmeric saponin slurry;
A3. robust fibre is mixed with lower concentration turmeric saponin slurry, then carry out fermentative processing;
B. in mixed slurry, add a certain proportion of flocculating aids, utilize plate-and-frame filter press to carry out filtering and concentrating, more than solid content is increased to 10wt%.
In steps A 2, A3, the mass ratio of described robust fibre and lower concentration turmeric saponin slurry is 0.01:1~5:1, is preferably yellow ginger is cleaned to robust fibre and all mixing again of slurry that broken rear separation obtains.
The concentrated method of material before turmeric saponin acidolysis, comprises the following steps:
A. at yellow ginger, clean after fragmentation, by physical method for separation, obtain robust fibre and lower concentration turmeric saponin slurry;
A4-1. robust fibre is adopted to common process acidolysis, lower concentration turmeric saponin slurry is carried out to fermentative processing simultaneously;
A4-2. the complete robust fibre of acidolysis is filtered with plate-and-frame filter press, after filtration, filter cake is carried out to break process, make vegetalitas flocculating aids;
B. the vegetalitas flocculating aids and/or other flocculating aidss that in the slurry after fermentative processing, add above-mentioned gained, utilize plate-and-frame filter press to carry out filtering and concentrating, more than solid content is increased to 10wt%.
The concentrated method of material before turmeric saponin acidolysis, comprises the following steps:
A. at yellow ginger, clean after fragmentation, by physical method for separation, obtain robust fibre and lower concentration turmeric saponin slurry;
A5-1. robust fibre is adopted to common process acidolysis;
A5-2. the robust fibre after acidolysis is filtered with plate-and-frame filter press, after filtration, filter cake is carried out to break process, make vegetalitas flocculating aids;
B. the vegetalitas flocculating aids and/or other flocculating aidss that in lower concentration turmeric saponin slurry, add above-mentioned gained, utilize plate-and-frame filter press to carry out filtering and concentrating, more than solid content is increased to 10wt%.
In aforesaid method, described slurry can be the separated robust fibre slurry that do not ferment, and also can be separated robust fibre fermentation slurry; Can also, for mixing with robust fibre the slurry that do not ferment, also can be and robust fibre mixed fermentation slurry simultaneously.
In aforesaid method, described physical method for separation is that conventional mechanical is separated: as separated with whizzer etc. in belt filter press is separated, plate-and-frame filter press is separated.
In aforesaid method, described flocculating aids is for conventional flocculating aids, as vegetalitas flocculating aids, perlite and diatomite etc.Described vegetalitas flocculating aids is the robust fibre after hydrolyzate, lignin residue or acidolysis.Robust fibre after described acidolysis is that the robust fibre going out by physical method for separation after yellow ginger cleaning fragmentation filters the solid substance obtaining under sour environment after acidolysis; Described hydrolyzate is that in yellow ginger processing, slurry filters the solid substance obtain after by acidolysis; Described lignin residue is that hydrolyzate extracts the residue after saponin.
In aforesaid method, described flocculating aids and the mass ratio of slurry are 0.01:1~5:1.
In aforesaid method, plate-and-frame filter press is conventional plate-and-frame filter press.
In step c, described acidolysis process is in the acid hydrolysis solution that is 4-5wt% in acidity, and temperature is at 90-130 ℃, acidolysis 1-4 hour.Preferred temperature is 120 ℃ of left and right, acidolysis approximately 2 hours.
The present invention obtains spent acid solution after filtration by the slurry after acidolysis, then adds solid content to be not less than the Turmeric slurry of 10wt%, regulates acidity to processing requirement, by traditional technology requirement, carries out acidolysis.After the method can reclaim spent acid solution without any processing direct reuse in producing, reduce generation and the discharge of the acid waste liquid of 80-90%.
The invention provides a kind of concentration method of turmeric saponin material, can efficiently to Turmeric slurry, concentrate.The present invention has improved the solid content of turmeric saponin slurry, reduces the total amount of acidolysis, thereby reduces acid black liquor generation.The vegetalitas flocculating aids that the method is made the robust fibre that before turmeric saponin acidolysis, slurry interpolation yellow ginger self produces, utilizes plate-and-frame filter press to carry out filtering and concentrating, improves the solid content of acidolysis material.The method, guaranteeing, under the prerequisite that saponin does not lose, to have realized the efficient concentration of saponin in Turmeric slurry, reduces the generation of acid black liquor.
The invention provides the method for a kind of turmeric saponin acidolysis spent acid reuse, can significantly save sour consumption, significantly reduce the discharge of the spent acid solution of acidolysis generation, realize turmeric saponin wastewater qualified discharge on the basis of existing waste water treatment process.
Embodiment
Embodiment mono-
A. by the slurries filtration after acidolysis in turmeric saponin industry, obtain 5t spent acid solution;
B. turmeric saponin slurry 3t(3m will be obtained after yellow ginger fragmentation 3) and the robust fibre 1.2t of solid content 30wt%;
C. 1.2t robust fibre is made to the vegetalitas flocculating aids of 0.5t solid content 30wt% after by acidolysis, simultaneously by 3t turmeric saponin slurry fermentation 24h;
D. the above-mentioned vegetalitas flocculating aids making is all added in the 3t turmeric saponin slurry after fermentation, utilize plate-and-frame filter press concentrated, obtain the concentrate feed of 0.6t solid content 30wt%;
F. above-mentioned whole concentrate feed and 5t spent acid solution are mixed, and the sulfuric acid of supplementary 100kg98wt%, adopt traditional acidolysis process acidolysis, filter and obtain solid content 30wt% hydrolyzate 0.5t and spent acid solution 5t(5m 3).
Embodiment bis-
A. by the slurries filtration after acidolysis in turmeric saponin industry, obtain 5.1t spent acid solution;
B. the robust fibre 1.1t of turmeric saponin slurry 3t and solid content 30wt% will be obtained after yellow ginger fragmentation;
C. by the acidolysis of 1.1t robust fibre, make the vegetalitas flocculating aids of 0.5t solid content 30wt%;
D. the above-mentioned vegetalitas flocculating aids making is all added in unfermentable 3t turmeric saponin slurry, utilize plate-and-frame filter press concentrated, obtain the concentrate feed of 0.6t solid content 31wt%;
F. above-mentioned whole concentrate feed and 5.1t spent acid solution are mixed, and the sulfuric acid of supplementary 95kg98wt%, adopt traditional acidolysis process acidolysis, filter and obtain solid content 30wt% hydrolyzate 0.5t and spent acid solution 5.1t.
Embodiment tri-
A. by the slurries filtration after acidolysis in turmeric saponin industry, obtain 5.0t spent acid solution;
B. the robust fibre 1.1t of turmeric saponin slurry 3t and solid content 30wt% will be obtained after yellow ginger fragmentation;
C. by the acidolysis of 1.1t robust fibre, make the vegetalitas flocculating aids of 0.5t solid content 30wt%;
D. the above-mentioned vegetalitas flocculating aids making is all added in unfermentable 3t turmeric saponin slurry, and the hydrolyzate 0.1t of supplementary solid content 30wt%, utilize plate-and-frame filter press concentrated, obtain the concentrate feed of 0.7t solid content 30wt%;
F. above-mentioned whole concentrate feed and 5.0t spent acid solution are mixed, and the sulfuric acid of supplementary 100kg98wt%, adopt traditional acidolysis process acidolysis, filter and obtain solid content 30wt% hydrolyzate 0.6t and spent acid solution 5.1t.
Embodiment tetra-
A. by the slurries filtration after acidolysis in turmeric saponin industry, obtain 5.0t spent acid solution;
B. the robust fibre 1.1t of turmeric saponin slurry 3t and solid content 30wt% will be obtained after yellow ginger fragmentation;
C. by the acidolysis of 1.1t robust fibre, make the vegetalitas flocculating aids of 0.5t solid content 30wt%, simultaneously by 3t turmeric saponin slurry fermentation 24h;
D. the above-mentioned vegetalitas flocculating aids making is all added in unfermentable 3t turmeric saponin slurry, and the xylogen 0.2t of supplementary solid content 30wt%, utilize plate-and-frame filter press concentrated, obtain the concentrate feed of 0.8t solid content 30wt%;
F. above-mentioned whole concentrate feed and 5.0t spent acid solution are mixed, and the sulfuric acid of supplementary 100kg98wt%, adopt traditional acidolysis process acidolysis, filter and obtain solid content 30wt% hydrolyzate 0.7t and spent acid solution 5.0t.
After the present invention reclaims spent acid solution without any processing direct reuse in producing, reduce generation and the discharge of the acid waste liquid of 80-90%.

Claims (9)

1.一种黄姜皂素酸解废酸回用的方法,包括以下步骤:  1. A method for reusing turmeric saponin acidolysis waste acid, comprising the following steps: a.将黄姜皂素工业中水解后的浆料过滤得到废酸液;  a. Filtrate the slurry after hydrolysis in the turmeric saponin industry to obtain waste acid; b.将黄姜破碎后得到的黄姜皂素浆料进行浓缩,黄姜皂素浆料的浓缩方式为对黄姜破碎后的浆料利用板框压滤机浓缩,使其含固量达到10wt%以上,将废酸液直接与含固量10wt%以上的黄姜皂素物料充分混合;  b. Concentrate the turmeric saponin slurry obtained after the turmeric is crushed, and the concentration mode of the turmeric saponin slurry is to utilize a plate and frame filter press to concentrate the slurry after the turmeric is crushed, so that its solid content reaches more than 10wt%, The waste acid solution is directly fully mixed with the turmeric saponin material with a solid content of more than 10wt%; c.然后将混合浆料采用传统的酸解工艺进行酸解,实现废酸液中残酸的直接回用。  c. Then, the mixed slurry is acid-hydrolyzed by the traditional acid-hydrolysis process, so as to realize the direct reuse of the residual acid in the waste acid solution. the 2.根据权利要求1所述的黄姜皂素酸解废酸回用的方法,其特征在于:所述过滤方式为采用板框压滤机过滤和带式压滤机过滤。  2. the method for reusing turmeric saponin acidolysis waste acid according to claim 1, is characterized in that: described filtering mode is to adopt plate and frame filter press to filter and belt type filter press to filter. the 3.根据权利要求1所述的黄姜皂素酸解废酸回用的方法,其特征在于:所述黄姜皂素浆料的浓缩包括如下步骤:  3. the method for turmeric saponin acidolysis spent acid recycling according to claim 1, is characterized in that: the concentration of described turmeric saponin slurry comprises the steps: A.在黄姜清洗破碎后,通过物理方法分离,得到粗纤维和低浓度黄姜皂素浆料;  A. After the turmeric is washed and broken, it is separated by physical methods to obtain crude fiber and low-concentration turmeric saponin slurry; B.在浆料中添加一定比例的助滤剂,利用板框压滤机进行过滤浓缩,将含固量提高至10wt%以上。  B. Add a certain proportion of filter aid to the slurry, and use a plate and frame filter press to filter and concentrate to increase the solid content to above 10wt%. the 4.根据权利要求1所述的黄姜皂素酸解废酸回用的方法,其特征在于:所述黄姜皂素浆料的浓缩包括如下步骤:  4. the method for turmeric saponin acidolysis spent acid recycling according to claim 1, is characterized in that: the concentration of described turmeric saponin slurry comprises the steps: A.在黄姜清洗破碎后,通过物理方法分离,得到粗纤维和低浓度黄姜皂素浆料;  A. After the turmeric is washed and broken, it is separated by physical methods to obtain crude fiber and low-concentration turmeric saponin slurry; A4-1.将粗纤维采用常规工艺酸解,同时将低浓度黄姜皂素浆料进行发酵处理;  A4-1. The crude fiber is acid-hydrolyzed by a conventional process, and the low-concentration turmeric saponin slurry is fermented; A4-2.将酸解后的粗纤维用板框压滤机进行过滤,过滤后对滤饼进行破碎处理,制成植物性助滤剂;  A4-2. Filter the crude fiber after acid hydrolysis with a plate and frame filter press, and then crush the filter cake to make a vegetable filter aid; B.在发酵后的浆料中添加上述所得的植物性助滤剂和/或其他助滤剂,利用板框压滤机进行过滤浓缩,将含固量提高至10wt%以上。  B. Add the vegetable filter aid and/or other filter aids obtained above to the fermented slurry, and use a plate and frame filter press to filter and concentrate to increase the solid content to above 10wt%. the 5.根据权利要求1所述的黄姜皂素酸解废酸回用的方法,其特征在于:所述黄姜皂素浆料的浓缩包括如下步骤:  5. the method for turmeric saponin acidolysis spent acid recycling according to claim 1, is characterized in that: the concentration of described turmeric saponin slurry comprises the steps: A.在黄姜清洗破碎后,通过物理方法分离,得到粗纤维和低浓度黄姜皂素浆料;  A. After the turmeric is washed and broken, it is separated by physical methods to obtain crude fiber and low-concentration turmeric saponin slurry; A5-1.将粗纤维采用常规工艺酸解;  A5-1. The crude fiber is acid-hydrolyzed by a conventional process; A5-2.将酸解后的粗纤维用板框压滤机进行过滤,过滤后对滤饼进行破碎处理,制成植物性助滤剂;  A5-2. Filter the crude fiber after acid hydrolysis with a plate and frame filter press, and then crush the filter cake to make a vegetable filter aid; B.在低浓度黄姜皂素浆料中添加上述所得的植物性助滤剂和/或其他助滤剂,利用板框压滤机进行过滤浓缩,将含固量提高至10wt%以上。  B. Add the vegetable filter aid and/or other filter aids obtained above to the low-concentration turmeric saponin slurry, and use a plate and frame filter press to filter and concentrate to increase the solid content to more than 10 wt%. the 6.根据权利要求3-5中任一项所述的黄姜皂素酸解废酸回用的方法,其特征在于:所述助滤剂为植物性助滤剂、珍珠岩和/或硅藻土。  6. according to the method for the reuse of turmeric saponin acidolysis waste acid described in any one in claim 3-5, it is characterized in that: described filter aid is vegetable filter aid, perlite and/or diatom earth. the 7.根据权利要求6所述的黄姜皂素酸解废酸回用的方法,其特征在于:所述植物性助滤剂为黄姜清洗破碎后通过物理方法分离出的粗纤维在酸性环境下酸解后过滤得到的固形物,或者黄姜加工生产中浆料通过酸解后过滤得到的水解物或水解物提取皂素后的残渣。  7. the method for turmeric saponin acidolysis waste acid reuse according to claim 6, is characterized in that: described vegetable filter aid is the rough fiber that separates by physical method after the turmeric is washed and broken, sour in an acidic environment. The solid matter obtained by filtration after hydrolysis, or the hydrolyzate obtained by filtration after acid hydrolysis of slurry in the processing and production of turmeric, or the residue after saponin is extracted from the hydrolyzate. the 8.根据权利要求3-5中任一项所述的黄姜皂素酸解废酸回用的方法,其特征在于:所述的助滤剂与浆料的质量比为0.01∶1~5∶1。  8. according to the method for the reuse of turmeric saponin acidolysis spent acid described in any one in claim 3-5, it is characterized in that: the mass ratio of described filter aid and slurry is 0.01: 1~5: 1. the 9.根据权利要求1所述的黄姜皂素酸解废酸回用的方法,其特征在于:所述的酸解工艺为在酸度为4-5wt%的酸解液中,温度为90-130℃下,酸解1-4小时。  9. the method for turmeric saponin acidolysis spent acid recycling according to claim 1, is characterized in that: described acidolysis process is in the acidolysis solution that acidity is 4-5wt%, and temperature is 90-130 ℃, acid hydrolysis for 1-4 hours. the
CN201210269041.1A 2012-07-30 2012-07-30 A kind of method of turmeric saponin acid hydrolysis spent acid recycling Expired - Fee Related CN102745840B (en)

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