CN108329059A - A kind of soak water of maize and its application - Google Patents
A kind of soak water of maize and its application Download PDFInfo
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- CN108329059A CN108329059A CN201810104314.4A CN201810104314A CN108329059A CN 108329059 A CN108329059 A CN 108329059A CN 201810104314 A CN201810104314 A CN 201810104314A CN 108329059 A CN108329059 A CN 108329059A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F11/00—Other organic fertilisers
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Abstract
The invention discloses a kind of soak water of maize and its applications, belong to waste water reuse technical field, more particularly to the recycling of remaining waste water (soak water of maize) in corn wet starch producing technology, soak water of maize is used the present invention, can reduce the pollution to environment and the cost of wastewater treatment.And soak water of maize can promote seed to sprout, and improve percentage of seedgermination, additionally it is possible to by it as in incorporation of fertilizerin the soil, can not only improve value of salvaged materials, can also promote plant blossom, shorten plant growth period, have facilitation to plant growth.
Description
Technical field
The invention belongs to waste water reuse technical fields, and in particular to remaining waste water in corn wet starch producing technology
The recycling of (soak water of maize), more particularly soak water of maize answering in promoting plant seed germination and plant blossom
With.
Background technology
It is wastewater produced mainly in following technique in wet method starch producing technology, specially：
Washings are generated in clear miscellaneous process section, and corn is when feeding intake, with Hydraulic transportation to infusion system, corn and conveying water
Ratio be 1: 2.5~3, temperature be 35~50 degree.Water is conveyed after dewatering screen imurity-removal, wet corn enters steeping tank, washes
Wash water discharge.In addition, when the corn after impregnating is washed, a small amount of sewage is also discharged.The characteristics of this segment process washings is：Water
Measure larger, general ton starch is about 2m with water3；Suspended matter in water is more, and suspended matter is mainly maize peel, broken corn etc.；It is dirty
The COD of water is relatively low, about in 400~800mg/L.
Protein Separation and when carrying out flotation concentration, there is a large amount of discharge of wastewater；When carrying out albumen press filtration, there is a small amount of waste water
Discharge has a small amount of discharge of wastewater, these waste water are referred to as albumen water by we when fiber squeezes water.The characteristics of albumen water is：Water
Measure larger, one ton of starch generates albumen water about 5~10m3, what is had is even more；COD concentration in waste water is higher, about
4000~8000mg/L, there are bigger differences due to water consumption difference.
In conclusion starch wastewater is mainly derived from the techniques such as washing, press filtration, concentration in corn starch processing
Section, a large amount of deliquescent organic pollutions, such as protein, carbohydrate, carbohydrate, fat, amino acid are contained in waste water,
Secondary is the inorganic compound containing N, P, is in addition also graded containing a certain amount of volatile acid, ash, and belonging to the preferable high concentration of biochemical has
Machine waste water.But since ammonia nitrogen and salt content are high, it is more difficult to handle.These organic wastewaters, which are discharged into water body, will consume a large amount of dissolving
Oxygen, such as without improvement direct emission, it will pollute the environment.
State Environmental Protection Administration points out in National Environmental development in science and technology the Tenth Five-Year Plan (2001-2005) outline：Continue the waste water starch industry
Pollution control technology is studied as important content, it is seen that the waste water in starch production process could be arranged after having to pass through processing
It puts, domestic and international currently used processing method can generally be divided into biochemical process and chemical flocculation precipitation method, no matter which kind of method, all
It needs to expend prodigious goods and materials cost, is directly utilized if slightly handling these of discharge waste water, can not only reduce dirt
Dye, moreover it is possible to processing cost is reduced, is killed two birds with one stone, there is presently no about the waste water generated in corn wet starch producing technology,
The report that namely soak water of maize can promote plant seed germination and bloom.
Invention content
The purpose of the present invention is to provide a kind of soak water of maize and its application, which can promote plant species
Son is sprouted and blooms, and improves percentage of seedgermination and shortens plant growth period.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of soak water of maize, the soak water of maize are the waste water generated in corn wet starch producing technology, by receiving
Collection, mixing, then obtained by triple effect downward film evaporator is further concentrated；The waste water specifically includes following three parts：
(4) first part derives from corn adverse current soaking process in sulfurous aqueous acid；
(5) second part derives from broken corn, fine grinding and the washings for forming smart starch process；
(6) washings that Part III obtains in the separation of protein and drying process.
Wherein, the specific of first part's water obtains method and is：Corn is immersed in sulfurous acid in steeping tank, steeping tank 8
~12, corn stays in static in tank in soaking process, with pump by soak in tank one side repeats itself, on one side to previous stage
Conveying in tank remains new sulfurous acid solution and soaking time longest, that is, the corn contact for the immersion that closes to an end, protects
Hold best immersion effect；60 ± 10 DEG C of soaking temperature, sulfurous acid concentration when immersion are 0.2%, 70~100h of soaking time；
Solution after immersion is soak water of maize first part.
The specific of second part water obtains method and is：The slurry that broken corn obtained after two gear teeth mills is entered into fibre
Sink is tieed up, is reinstated with the washings one of later washing fiber be pumped into first order pressure curved sieve herein；Thick shallow lake is isolated under sieve
Powder breast, oversize sieve countercurrent washing through 5 grades or 6 stage pressure songs again, and washing process water is added before being sieved from afterbody, passes through sieve
Face carries the free starch washed and moves forward step by step, before the first order is sieved in sink, with the slurry after fine grinding
Merge, enters first order pressure curved sieve jointly, separate coarse starch milk；Repeatedly after washing screening washing, slurry is discharged, collects washing
Water, 45 DEG C of technique coolant-temperature gage of washing, soluble matter are no more than 1.5%；By bent sieve separation obtains before and after fine grinding Crude starch through desanding
Device, rotary filter, into the main centrifuge of separation seitan, starch；Top flow point goes out seitan water concentration 1%~2%, send concentration point
It disembarks, ten two-stage cyclone separators is sent to carry out countercurrent washing；After washing, goes smart starch milk basin to be dehydrated, receive simultaneously
Integrate washings as soak water of maize second part.
The specific of Part III water obtains method and is：The gluten water that flow point separates out from main centrifuge top, enters through filter
Centrifuge is concentrated, top stream is process water, into technique water storage tank, solid content 0.25%~0.5%, for plumule, fiber
Washing is used, and the washings collected after washing are soak water of maize Part III.
The soak water of maize that will be obtained, applicant have carried out the detection of following ingredient to it, the following component specifically measured
Content is：Protein 20-29mg/ml, amino acid 6-15mg/ml, total reducing sugar 12-16mg/ml, vitamin 0.5-0.9mg/ml, nitrogen
25-38mg/ml, phosphorus 18-26mg/ml plant plain phosphorus 16-22mg/ml, potassium 5-7mg/ml, calcium -0.2-0.4mg/ml, copper 1.2-1.8
μ g/ml, iron 32-47 μ g/ml, zinc 36-57 μ g/ml, manganese 41-49 μ g/ml.
The most important inventive point of the present invention is the application of above-mentioned soak water of maize, is mainly reflected in following two aspects：
Vegetable seeds is impregnated with a concentration of 0.5~1% soak water of maize, seed can be promoted to sprout, improve kind
Sub- germination percentage.
After a concentration of 0.5~2% soak water of maize being applied in the plant soil of vegetative growth phase, it can promote
Plant blossom shortens plant growth period.
Under normal circumstances, vegetable seeds and plant are unrestricted, using certain density soak water of maize at it
Reason, can reach said effect, especially soybean, tobacco.
Since the shell of different vegetable seeds is thick different, different seeds infiltrate the different time, and specific infiltrating time wants root
Depending on vegetable seeds, infiltrate until having surveyed germination percentage.
The invention has the advantages that：
The waste water (soak water of maize) generated in wet method starch producing technology is used the present invention, can reduce to ring
The pollution in border, and reduce cost for wastewater treatment.
Main advantages of the present invention, which are low concentration soak water of maize, to promote seed to sprout, and improve seed hair to a certain degree
Bud rate effectively facilitates seed and neatly emerges rapidly and grow up to seedling.In being manured into soil, low concentration solution can promote plant
Blooming 3-5 days shortens the vegetation growth of plant phase, and good basis is established to improve crop yield.
Description of the drawings
Fig. 1 is influence of the soak water of maize to soybean germination rate；
Fig. 2 is influence of the soak water of maize to tobacco germination percentage；
In Fig. 1 and 2,0.5%CSL：0.5% concentration soak water of maize；1%CSL：1% concentration soak water of maize；2%
CSL：2% concentration soak water of maize；5%CSL：5% concentration soak water of maize.CK：Blank control.
Fig. 3 is influence of the soak water of maize to soybean nutritional growth period plant height；
In Fig. 3,1%CSL：1% concentration soak water of maize；2%CSL：2% concentration soak water of maize；CF：With 1% corn
Impregnate chemical fertilizer aqueous solution of the aqueous solution containing identical mineral nutrient ingredient；CK：Blank control.
Specific implementation mode
The present invention will be described in detail by specific embodiment below.These embodiments are provided to be to be able to more
Thoroughly understand the present invention, and the scope of the present invention can be completely communicated to those skilled in the art.
"comprising" or " comprising " as mentioned in working as in specification in the whole text and claim are an open language, therefore are answered
It is construed to " including but not limited to ".Specification subsequent descriptions are to implement the better embodiment of the present invention, and so description is
For the purpose of the rule of specification, it is not limited to the scope of the present invention.Protection scope of the present invention is when regarding appended power
Profit requires subject to institute's defender.
Embodiment
One, the collection of soak water of maize
In Starch Production enterprise, the waste water generated using corn wet starch producing technology by collecting, mix, then is led to
Triple effect downward film evaporator is crossed further to be concentrated and obtained.Specifically soak water of maize source is obtained by following three parts：
First part：Corn is immersed in sulfurous acid in steeping tank, steeping tank 8~12, corn stays in soaking process
It is static in tank, with pump by soak in tank one side repeats itself, conveyed on one side into previous stage tank, remain new Asia
Sulfuric acid solution and soaking time longest, that is, the immersion that closes to an end corn contact, keep best immersion effect；Impregnate temperature
60 ± 10 DEG C of degree, sulfurous acid concentration when immersion are 0.2%, 70~100h of soaking time；Solution after immersion is corn leaching
Soaked first part.
Second part：The slurry that broken corn obtained after two gear teeth mills is entered into fibre washing bath, herein with
The washings one of washing fiber, which are reinstated, afterwards is pumped into first order pressure curved sieve；Coarse starch milk is isolated under sieve, oversize is again through 5 grades
Or 6 stage pressure song sieve countercurrent washing, washing process water is added before being sieved from afterbody, by compass screen surface, carries and washs
Free starch moves forward step by step, before the first order is sieved in sink, merges with the slurry after fine grinding, enters the first order jointly
Pressure curved sieve separates coarse starch milk；Repeatedly after washing screening washing, slurry is discharged, collects washings, washing technique coolant-temperature gage
45 DEG C, soluble matter is no more than 1.5%；By bent sieve separation obtains before and after fine grinding Crude starch through desander, rotary filter, into point
Main centrifuge from seitan, starch；Top flow point goes out seitan water concentration 1%~2%, send concentration and separation machine, send ten two level eddy flows point
Countercurrent washing is carried out from device；After washing, smart starch milk basin is gone to be dehydrated, it is soak water of maize to be collected simultaneously washings
Second part.
Part III：The gluten water that flow point separates out from main centrifuge top enters concentration centrifuge through filter, and top stream is work
Skill water, into technique water storage tank, solid content 0.25%~0.5% is collected for plumule, fiber wash after washing
Washings are soak water of maize Part III.
It will collect, mixing, then for use by soak water of maize obtained by the progress of triple effect downward film evaporator further concentration.
Two, obtained soak water of maize is taken laboratory to be detected, obtained main component and concentration range such as table 1
It is shown.
1 soak water of maize main component of table and content
Three, application of the soak water of maize in promoting plant seed germination
(1) soak water of maize processed soybeans seed
(it is being covered with two layers of filter with the solution 5ml infiltration soya seeds 20 containing 0.5%, 1%, 2%, 5% soak water of maize
The above-mentioned solution of 5ml is added in the culture dish of paper, is then placed in soya seeds and carries out germination test), as a contrast with 5ml water, often
A processing has 4 repetitions.After processing in 7 days, every half day observation germination situation.As a result statistics is shown in Fig. 1.
It will be seen from figure 1 that with containing after 0.5%, 1% soak water of maize solution treatment soya seeds, germination percentage reaches respectively
To 87.5% and 75%, blank germination percentage (being not added with soak water of maize) is 70%.And low concentration soak water of maize solution treatment is big
After beans seed 36h, soybean germination rate just reaches 25%, is far more than the germination percentage (7.5%) of blank.It has also been discovered that, use simultaneously
Just start to germinate after solution treatment soya seeds containing 2% and 5% soak water of maize, after 48h, and final germination percentage is only
32.5% and 27.5%, it is far below blank control, illustrates that the corn soaking aqueous solution of high concentration can play corn seed germination
Inhibiting effect.It these results suggest that low concentration corn soaking aqueous solution can stimulate Germination of Soybean Seed.
(2) corn soaking water process tobacco seed
(it is being covered with two layers of filter with the solution 3ml infiltration tobacco seeds 50 containing 0.5%, 1%, 2%, 5% soak water of maize
The above-mentioned solution of 3ml is added in the culture dish of paper, is then placed in tobacco seed and carries out germination test), as a contrast with 3ml water, often
A processing has 6 repetitions.After processing in 120h, every 12 hours observation germination situations, statistical result is shown in Fig. 2.
Figure it is seen that with containing after 0.5% corn soaking solution immersion tobacco seed 120h, germination percentage reaches
98%, the germination percentage of control is 93%, but the two is not significantly different, and illustrates that seed quality is good, but 0.5% concentration corn soaks
After soaked solution treatment tobacco seed 12h, tobacco germination percentage just reaches 58%, the tobacco seed of 1% concentration corn soaking water process
Son germinates in 24 hours with the project that compares, and finally germination percentage is more than 92%, but with 2% and 5% concentration corn soaking
The tobacco seed of aqueous solution processing, just germinates for 24 hours with after 60h respectively, and final germination percentage is only 32% and 17%.The result
Illustrate that low concentration corn soaking aqueous solution can stimulate tobacco seed to sprout, the corn soaking aqueous solution of high concentration inhibits tobacco seed
Son is sprouted, and germination percentage is reduced.
(3) soak water of maize processed soybeans seedling
The corn soaking aqueous solution that compound concentration is 0,1%, 2%, 5%, 10% is prepared and 1% corn soaking aqueous solution
Chemical fertilizer aqueous solution containing identical mineral nutrient ingredient.Above-mentioned corn soaking aqueous solution and fertilizer solution are applied into Soybean Seedlings Growth
Soil in, observe growth situation and flowering time.
The results show that not emerged with the soybean of 5% and 10% soak water of maize solution treatment, remaining statistics is as follows：
(1) plant height.As shown in figure 3, after soybean grows 24 days, the soybean plant height for applying 1% concentration soak water of maize is more empty
It is white high by 32%, the high by 18.9% of chemical fertilizer is relatively applied, illustrates that, in vegetative growth stage, the application of soak water of maize can promote soybean
Growth.
(2) flowering time.As shown in table 2, it blooms, applies when the soybean of 1% concentration soak water of maize of application grows 32-33 days
The soybean growth for entering 2% concentration soak water of maize is bloomed for 35-36 days, and blank and the soybean for applying chemical fertilizer were formally opened at 37 days
Flower illustrates that suitable soak water of maize of applying can shorten soybean growth period.
Influence of 2 soak water of maize of table to soybean growth period
(4) corn soaking water process tobacco
The corn soaking aqueous solution that compound concentration is 0,0.5%, 2%, 5%, 10% is prepared and 0.5% soak water of maize
Chemical fertilizer aqueous solution of the solution containing identical mineral nutrient ingredient.Above-mentioned corn soaking aqueous solution and fertilizer solution are applied into tobacco seedling
In the soil of growth, growth situation and flowering time are observed.
The results are shown in Table 3, and when tobacco growing 50 days for applying 0.5% concentration soak water of maize blooms, blank with apply
The tobacco growing of 2% concentration soak water of maize is bloomed for 53-54 days, and the tobacco for applying chemical fertilizer is formally to bloom at 53 days, and apply
5%, the tobacco plant of 10% corn soaking aqueous solution fails normally to emerge i.e. dead, illustrates to apply soak water of maize energy in right amount
Enough shorten tobacco breeding time.
Influence of 3 soak water of maize of table to tobacco breeding time
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention belong to the scope of protection of present invention.
Claims (8)
1. a kind of soak water of maize, which is characterized in that the soak water of maize is generated in corn wet starch producing technology
Waste water by collecting, mix, then obtains by triple effect downward film evaporator is further concentrated；The waste water specifically includes
Following three parts：
(1) first part derives from corn adverse current soaking process in sulfurous aqueous acid；
(2) second part derives from broken corn, fine grinding and the washings for forming smart starch process；
(3) washings that Part III obtains in the separation of protein and drying process.
2. soak water of maize according to claim 1, which is characterized in that the specific of first part's water obtains method and be：It will
Corn is immersed in sulfurous acid in steeping tank, and steeping tank 8-12, corn stays in static in tank in soaking process, will be impregnated with pump
Liquid one side repeats itself in tank is conveyed into previous stage tank on one side, remains new sulfurous acid solution with soaking time most
The corn contact of the long immersion that namely closes to an end, keeps best immersion effect；Soaking temperature is 60 ± 10 DEG C, when immersion
Sulfurous acid concentration is 0.2%, soaking time 70-100h；Solution after immersion is soak water of maize first part.
3. soak water of maize according to claim 1, which is characterized in that the specific of second part water obtains method and be：It will
The slurry that broken corn obtained after two gear teeth mills enters fibre washing bath, herein with the washings one of later washing fiber
It reinstates and is pumped into first order pressure curved sieve；Coarse starch milk is isolated under sieve, oversize is washed through 5 grades or 6 stage pressure songs sieve adverse current again
It washs, washing process water is added before being sieved from afterbody, by compass screen surface, carries the free starch washed step by step to Forward
It is dynamic, before the first order is sieved in sink, merge with the slurry after fine grinding, enters first order pressure curved sieve jointly, separate thick shallow lake
Powder breast；Repeatedly after washing screening washing, slurry is discharged, collects washings, washing technique coolant-temperature gage is 45 DEG C, and soluble matter does not surpass
Cross 1.5%；By bent sieve separation obtains before and after fine grinding Crude starch through desander, rotary filter, into the master of separation seitan, starch
Centrifuge；Top flow point goes out seitan water concentration 1-2%, send concentration and separation machine, and ten two-stage cyclone separators is sent to carry out countercurrent washing；It washes
After washing, smart starch milk basin is gone to be dehydrated, it is soak water of maize second part to be collected simultaneously washings.
4. soak water of maize according to claim 1, which is characterized in that the specific of Part III water obtains method and be：From
The gluten water that main centrifuge top flow point separates out enters concentration centrifuge through filter, and top stream is process water, is store into process water
Slot, solid content 0.25-0.5%, for plumule, fiber wash, the washings collected after washing are soak water of maize the
Three parts.
5. soak water of maize described in claim 1, which is characterized in that the following component content measured in the soak water of maize
For：Protein 20-29mg/ml, amino acid 6-15mg/ml, total reducing sugar 12-16mg/ml, vitamin 0.5-0.9mg/ml, nitrogen 25-
38mg/ml, phosphorus 18-26mg/ml plant plain phosphorus 16-22mg/ml, potassium 5-7mg/ml, calcium -0.2-0.4mg/ml, copper 1.2-1.8 μ g/
Ml, iron 32-47 μ g/ml, zinc 36-57 μ g/ml, manganese 41-49 μ g/ml.
6. the application of claim 1-5 any one of them soak water of maize, which is characterized in that with a concentration of 0.5~1% institute
It states soak water of maize and impregnates vegetable seeds, seed can be promoted to sprout, improve percentage of seedgermination.
7. the application of claim 1-5 any one of them soak water of maize, which is characterized in that by a concentration of 0.5~2% institute
After stating in the plant soil of soak water of maize application vegetative growth phase, plant blossom can be promoted, shorten plant growth period.
8. the application of rice soaking water described according to claim 6 or 7, which is characterized in that the plant is soybean, tobacco.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810104314.4A CN108329059A (en) | 2018-02-01 | 2018-02-01 | A kind of soak water of maize and its application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810104314.4A CN108329059A (en) | 2018-02-01 | 2018-02-01 | A kind of soak water of maize and its application |
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ID=62928123
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| JP2004142994A (en) * | 2002-10-24 | 2004-05-20 | Hiranaka:Kk | Method for producing liquid fertilizer and soil conditioner by batch active sludge method |
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| CN104098707A (en) * | 2014-06-25 | 2014-10-15 | 安徽年康面业有限责任公司 | Manufacturing technology for corn starch |
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2018
- 2018-02-01 CN CN201810104314.4A patent/CN108329059A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004142994A (en) * | 2002-10-24 | 2004-05-20 | Hiranaka:Kk | Method for producing liquid fertilizer and soil conditioner by batch active sludge method |
| CN103553739A (en) * | 2013-09-30 | 2014-02-05 | 眉县果业技术推广服务中心 | Production method for liquid organic fertilizer by using starch wastewater |
| CN104098707A (en) * | 2014-06-25 | 2014-10-15 | 安徽年康面业有限责任公司 | Manufacturing technology for corn starch |
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Application publication date: 20180727 |