CN105439270B - A kind of Moringa oleifera flocculant particle and its production and use - Google Patents
A kind of Moringa oleifera flocculant particle and its production and use Download PDFInfo
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- CN105439270B CN105439270B CN201510779111.1A CN201510779111A CN105439270B CN 105439270 B CN105439270 B CN 105439270B CN 201510779111 A CN201510779111 A CN 201510779111A CN 105439270 B CN105439270 B CN 105439270B
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
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Abstract
The invention discloses a kind of Moringa oleifera flocculant particle and its production and use.The flocculant is made up of following raw material：Moringa seeds, chitosan, the natural material such as sodium alginate composition, preparation method is simple.The present invention has good flocculating effect to the particulate matter in water body, improves water transparency.Optimal particle preparation condition is 1~3% calcium chloride, 12~18g/L sodium alginate, 1.5~2g/L chitosan solution and 7~8g/L Moringa extract solution.The protein envelop rate of the particle obtained under optimum condition is 30 50%.Particle can discharge 50% 70% protein in 60min.The particle can slowly release flocculation activity protein using process.And due to there is pore in particle, the water surface can be swum in, is easy to the recovery of particle.Flocculant particle produced by the present invention is easy to using and transporting for plant flocculant.
Description
Technical field
The invention belongs to water treatment agent preparation field, it is related to a kind of Moringa oleifera flocculant particle and preparation method thereof
And purposes.
Background technology
During natural calamity and mankind's activity etc., substantial amounts of organic and inorganic material enters environment.Excessive chemicals
Matter enters the change that water body causes water quality, and such as water body blacks, and smelly, turbidity is raised, noxious material increases, pathogenic microorganism grows
Deng the production and living to the mankind cause tremendous influence.Various suspended particulate substances in water body directly affect illumination in water body
Vertical distribution, so as to influence the growth and breeding of submerged plant.Reduction water turbidity can improve illumination condition under water, promote aquatic
The growth of phytobiocoenose, so as to play the effect that water plant repairs water environment, improves water quality.Cause water body turbid
Spending elevated material mainly has the planktonic organisms such as clay, organic-inorganic material, algae and other microorganisms.Reduce water body turbid
Degree, it is the essential step for recovering water quality to improve water transparency, reduces water turbidity, improves water transparency and often uses flocculant master
To include inorganic and organic flocculant, such as aluminium chloride, aluminum sulfate, iron chloride, aluminium polychloride and polyacrylamide, chemistry wadding
Solidifying agent goes turbidity effect with good.However, chemical floc has the following disadvantages in use, under such as cryogenic conditions
Flocculation efficiency is not good, change water body electrical conductivity, sludge yield greatly and residual chemicals are detrimental to health (such as aluminium in water
Intake can cause senile dementia) etc..Plant flocculant has drawn from the degradable material of the Nature, and plant flocculant can not only reach
To chemical flocculation and flocculating effect, and secondary pollution will not be produced as chemical floc.
Moringa is the plant flocculant of current most study, and research has shown that Moringa is a kind of environment-friendly and can substituted
The potential flocculant of the inorganic flocculating agents such as aluminium salt.Active material in moringa seeds can not only flocculate the clay particle thing of water body,
Algae that can also be flocculated in water body etc..But the active material extraction comparison in moringa seeds is cumbersome, by the active matter extracted
Matter is embedded into chitosan and sodium alginate particle, is conducive to convenient use.
Chitosan is a kind of natural polymer straight-chain polysaccharide, is prepared by de-acetyl chitin, can be dissolved in diluted acid；
Sodium alginate natural polymer soluble in water, is present in brown algae.Can be with containing a large amount of primary amino radicals in chitosan molecule chain
Substantial amounts of carboxyl generates polyelectrolyte film under the sucking action of positive and negative electric charge on sodium alginate strand.Sodium alginate is molten
Liquid, which directly instills to react in the mixed solution of chitosan and calcium chloride, forms capsule；Finally give the internal capsule for liquid, bag
Containing three-decker：Chitosan precipitation layer, chitosan/sodium alginate complexing layer and calcium alginate coacervate.
The content of the invention
Present invention aim to address problems of the prior art, and provide a kind of Moringa oleifera flocculant particle and
Preparation method and use.Pass through present invention reduction aquatic particle content.The method is main with Moringa, chitosan, sodium alginate
It is raw material Deng natural material, production environment friendly flocculant realizes water turbidity reduction.
To reach above-mentioned purpose, the method that the present invention is used is：
A kind of preparation method of Moringa oleifera flocculant particle, comprises the following steps：
1) chitosan and anhydrous calcium chloride are dissolved in the distilled water solution for the acetic acid that volume fraction is 0.8%~1.2%
In, chitosan-calcium chloride mixed solution is configured to, wherein concentration of the chitosan in mixed solution is 1.5~2g/L, calcium chloride
Mass concentration in mixed solution is 1~3%；
2) compound concentration is 7~8g/L Moringa extract solution；
3) sodium alginate is dissolved in above-mentioned Moringa extract solution, the concentration for making sodium alginate is 12~18g/L；
4) by step 3) in obtained mixed solution be constantly added drop-wise to step 1) in chitosan-calcium chloride mixed solution
In, 8~12min is stirred, gel is formed；
5) by step 4) in obtained gel filtration, washed away with distilled water on gel after residuals, at normal temperatures vacuum
Dry, that is, obtain plant flocculant particle.
The specific compound method of described Moringa extract solution is：Moringa seeds shell, ground, sieving obtains Moringa powder of seeds,
Ethanol is mixed into degreasing with Moringa powder of seeds, and dried up with nitrogen, that is, obtains the Moringa powder of seeds of degreasing；Per the peppery of 0.2g degreasings
Wooden powder of seeds mixing 20mL NaCl solution, then by stirring 30~40min, filtering, obtain Moringa extract solution, make in the step
The concentration of NaCl solution is 1mol/L.
Embedded in a kind of Moringa oleifera flocculant particle prepared using described method, the flocculant particle into
30-50% protein, when particle is positioned in water, can discharge 50%-70% protein in 60min.
A kind of purposes of described Moringa oleifera flocculant particle, in advance with water by the egg in Moringa oleifera flocculant particle
White matter dissolution, Moringa oleifera flocculant particle is reclaimed, and dissolution fluid is added directly into pending water body.
The extraction process of Moringa is related to the grinding of moringa seeds, salting liquid and extracts, filters.If Moringa powder directly is added into water
Body, can greatly increase the load of water body organic matter.Therefore, Moringa particle is made in Moringa extract solution by batch in advance, can be dropped significantly
The low fussy degree used, is easy to user to use.And flocculant disclosed by the invention, with it is environment-friendly the characteristics of, use
Natural material is raw material, nontoxic, degradable；Water turbidity can be reduced；Reclaim, it is easy to use.
Brief description of the drawings
Fig. 1 is turbidity variation diagram of the aqueous suspension ofkaolin under different Moringa liquid usage amounts.
Embodiment
With reference to instantiation, the invention will be further described.The thinking of the present invention is that the flocculation extracted in Moringa is lived
Property material, is configured to certain density sodium alginate Moringa extract solution；Prepare certain density chitosan calcium chloride solution；Marine alga
Sour sodium Moringa extract solution reacts with chitosan calcium chloride solution, and being formed has flocculation activity material grainses.
Embodiment 1
A kind of preparation method of Moringa oleifera flocculant particle, this method comprises the following steps：
1) chitosan and anhydrous calcium chloride are dissolved in the distilled water solution for the acetic acid that volume fraction is 1%, are configured to
Chitosan-calcium chloride mixed solution, wherein concentration of the chitosan in mixed solution are 1.5g/L, and calcium chloride is in mixed solution
Mass concentration be 2%；
2) the specific compound method of Moringa extract solution is：Moringa seeds shell, ground, sieving obtains Moringa powder of seeds, by second
Alcohol mixes degreasing with Moringa powder of seeds, and is dried up with nitrogen, that is, obtains the Moringa powder of seeds of degreasing；Per the moringa seeds of 0.2g degreasings
Powder mixing 20mL NaCl solution, the concentration of NaCl solution is 1mol/L, then by mixing slowly 30min, filtering, obtains peppery
Wooden extract solution；Compound concentration is 8g/L Moringa extract solution；
3) sodium alginate is dissolved in above-mentioned Moringa extract solution, the concentration for making sodium alginate is 15g/L；
4) by step 3) in obtained mixed solution be constantly added drop-wise to step 1) in chitosan-calcium chloride mixed solution
In, 10min is mixed slowly, gel is formed；
5) by step 4) in obtained gel filtration, washed away with distilled water on gel after residuals, it is dry in 25 DEG C of vacuum
Dry 24h, that is, obtain plant flocculant particle, and particle has and is separated from each other between preferable form, particle, is difficult agglomerating.
Embodiment 2
A kind of preparation method of Moringa oleifera flocculant particle, this method comprises the following steps：
1) chitosan and anhydrous calcium chloride are dissolved in the distilled water solution for the acetic acid that volume fraction is 1%, are configured to
Chitosan-calcium chloride mixed solution, wherein concentration of the chitosan in mixed solution are 2g/L, and calcium chloride is in mixed solution
Mass concentration is 1.5%；
2) the specific compound method of Moringa extract solution is：Moringa seeds shell, ground, sieving obtains Moringa powder of seeds, by second
Alcohol mixes degreasing with Moringa powder of seeds, and is dried up with nitrogen, that is, obtains the Moringa powder of seeds of degreasing；Per the moringa seeds of 0.2g degreasings
Powder mixing 20mL NaCl solution, the concentration of NaCl solution is 1mol/L, then by mixing slowly 30min, filtering, obtains peppery
Wooden extract solution；Compound concentration is 7g/L Moringa extract solution；
3) sodium alginate is dissolved in above-mentioned Moringa extract solution, the concentration for making sodium alginate is 18g/L；
4) by step 3) in obtained mixed solution be constantly added drop-wise to step 1) in chitosan-calcium chloride mixed solution
In, 10min is mixed slowly, gel is formed；
5) by step 4) in obtained gel filtration, washed away with distilled water on gel after residuals, it is dry in 25 DEG C of vacuum
Dry 24h, that is, obtain plant flocculant particle.
The flocculating effect of Moringa liquid is measured below:
1M NaCl solution is selected as the extract solution of moringa seeds.0.5g degreasings powder and 50mL 1M NaCl solution are mixed
Close, stir 30min, filtering, filtrate is stand-by.
(2) aqueous suspension ofkaolin that turbidity is 50NTU is prepared, pH to 7.0 is adjusted with 0.1M HCl and NaOH.
(3) by 200mL, the suspension is poured into 250mL beakers, and beaker is put under six coagulations stirring instrument, added different
The NaCl moringa seeds extract solutions of volume, first stir 2min, then stir with 50rpm/min speed with 200rpm/min speed
30min, determines the turbidity stood after 30min, 60min, 90min respectively.From figure 1 it appears that final turbidity is wadded a quilt with cotton with Moringa
The dosage of solidifying agent is inversely proportional, and optium concentration is 40mg/L, under the concentration, stands after 30min, turbidity can be by Moringa
The turbidity of 50NTU aqueous suspension ofkaolin drops to 15NTU or so, and turbidity removal rate is up to more than 70%；Stand after 60min, turbidity
Below 10NTU is dropped to, a state more clarified is reached, turbidity removal rate is up to more than 80%；Stand after 90min, turbidity drop
5NTU or so is arrived, a state more clarified is reached, turbidity removal rate is up to more than 90%.
The material with flocculation ability is protein in moringa seeds, therefore the protein content of measurement dissolution liquid can be said
The content of active material in bright particle.Below to the protein envelop rate of the flocculant particle obtained in embodiment 1 and embodiment 2
It can be measured with leachability.
Flocculant granule protein matter entrapment efficiency determination：
By the Moringa oleifera flocculant particle prepared in Examples 1 and 2, the grind into powder in mortar, divides respectively
Also known as take the Moringa oleifera flocculant powder prepared in 0.05g Examples 1 and 2, plus 10mL distilled water, 250rpm,
60min is shaken under the conditions of 25 DEG C.Centrifuging and taking supernatant, Coomassie Brilliant Blue surveys protein content.As a result show：Embodiment 1
The average envelop rate of the protein of the flocculant particle arrived is 42~50%；The protein for the flocculant particle that embodiment 2 is obtained
Average envelop rate be 30~46%.
The leachable protein content determination of flocculant particle：
Weigh the Moringa oleifera flocculant particle prepared in 0.05g Examples 1 and 2 respectively, plus 10mL distilled water,
60min is shaken under the conditions of 250rpm, 25 DEG C.Supernatant is taken, Coomassie Brilliant Blue surveys protein content.As a result show：Implement
The amount of the protein dissolution for the flocculant particle that example 1 is obtained accounts for the 55-70% of protein content in particle；What embodiment 2 was obtained
The average envelop rate of the protein of flocculant particle is 50~66%.
It is indicated above that the Moringa oleifera flocculant particle that the present invention is prepared has good envelop rate, and it is leachable
It is higher with flocculation activity protein content, possess prospect of the application.In addition, from the flocculant particle shape prepared,
Separating degree is high each other for particle, and form is intact, almost without agglomerating phenomenon.And because the flocculant is by environmental pollution
What less plant prepared, thus also have it is environment-friendly the characteristics of.
The Moringa oleifera flocculant particle that above-mentioned preparation method is obtained when in use, in advance can be flocculated Moringa oleifera with water
Protein dissolution in agent particle, Moringa oleifera flocculant particle is reclaimed, and dissolution fluid is added directly into pending water body
In, reach the purpose of flocculation.
Claims (4)
1. a kind of preparation method of Moringa oleifera flocculant particle, it is characterised in that this method comprises the following steps：
1) chitosan and anhydrous calcium chloride are dissolved in the distilled water solution for the acetic acid that volume fraction is 0.8%~1.2%, matched somebody with somebody
Chitosan-calcium chloride mixed solution is made, wherein concentration of the chitosan in mixed solution is 1.5~2g/L, and calcium chloride is mixed
It is 1~3% to close the mass concentration in solution；
2) compound concentration is 7~8g/L Moringa extract solution；
3) sodium alginate is dissolved in above-mentioned Moringa extract solution, the concentration for making sodium alginate is 12~18g/L；
4) by step 3) in obtained mixed solution be constantly added drop-wise to step 1) in chitosan-calcium chloride mixed solution in, stir
8~12min is mixed, gel is formed；
5) by step 4) in obtained gel filtration, washed away on gel after residuals, be dried in vacuo at normal temperatures with distilled water,
Obtain plant flocculant particle.
2. the preparation method of Moringa oleifera flocculant particle as claimed in claim 1, it is characterised in that described Moringa is extracted
The specific compound method of liquid is：Moringa seeds are shelled, ground, sieving obtains Moringa powder of seeds, and ethanol is mixed with Moringa powder of seeds
Degreasing, and dried up with nitrogen, that is, obtain the Moringa powder of seeds of degreasing；Per the Moringa powder of seeds mixing 20mL of 0.2g degreasings NaCl
Solution, the concentration of NaCl solution is 1mol/L, then by stirring 30~40min, filtering, obtains Moringa extract solution.
3. a kind of Moringa oleifera flocculant particle that the method as described in claim 1 is prepared, it is characterised in that the flocculation
The protein into 30-50% is embedded in agent particle, when particle is positioned in water, 50%-70% egg can be discharged in 60min
White matter.
4. a kind of purposes of Moringa oleifera flocculant particle as claimed in claim 1, it is characterised in that in advance with water by Moringa
Protein dissolution in plant flocculant particle, Moringa oleifera flocculant particle is reclaimed, and dissolution fluid is added directly into and waits to locate
In the water body of reason.
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| CN105692843A (en) * | 2016-04-20 | 2016-06-22 | 上海海洋大学 | Water purifying agent on basis of proteins of moringa oleifera seeds and method for preparing water purifying agent |
| CN107285480A (en) * | 2017-06-27 | 2017-10-24 | 兰溪市酉泽饲料技术服务有限公司 | Efficient water-purifying agent based on biology enzyme |
| CN107434288A (en) * | 2017-06-27 | 2017-12-05 | 兰溪市酉泽饲料技术服务有限公司 | A kind of water purification agent based on Moringa and preparation method thereof |
| CN107555606A (en) * | 2017-07-31 | 2018-01-09 | 兰溪市普润斯水产养殖技术有限公司 | The preparation method of water quality treatment agent used for aquiculture |
| CN107459144A (en) * | 2017-07-31 | 2017-12-12 | 浦江县酉泽水产科技有限公司 | Water quality treatment agent used for aquiculture |
| CN107298488A (en) * | 2017-08-29 | 2017-10-27 | 兰溪市酉泽饲料技术服务有限公司 | A kind of high efficiency composition water purification agent and preparation method thereof |
| CN109264866B (en) * | 2018-09-11 | 2021-08-20 | 湖北理工学院 | Preparation method and application of hygrophyte plant fiber filler for strengthening denitrification of constructed wetland |
| CN111204929B (en) * | 2020-01-17 | 2023-04-07 | 内江师范学院 | Municipal sewage treatment method based on biological contact oxidation process |
| CN115124124A (en) * | 2021-03-25 | 2022-09-30 | 北京科技大学 | Black water coagulation anaerobic fermentation method and system based on plant flocculant |
| CN114162947B (en) * | 2021-11-24 | 2023-10-31 | 上海应用技术大学 | Preparation method of Moringa seed meal natural composite organic flocculant |
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| JPS5473463A (en) * | 1977-11-22 | 1979-06-12 | Sekisui Chem Co Ltd | Method of treating waste water containing starchy substances |
| CN100436525C (en) * | 2006-02-16 | 2008-11-26 | 武汉理工大学 | Prepn of sodium alginate/chitosan mixture gel |
| CN102139942A (en) * | 2010-02-02 | 2011-08-03 | 中国科学院生态环境研究中心 | Method for high-efficiency flocculation of algal blooms by modified clay, soil or sand |
| CN102259965B (en) * | 2011-05-19 | 2013-03-13 | 中国林业科学研究院资源昆虫研究所 | Moringa oleifera water purifying agent |
| CN102674517A (en) * | 2012-05-23 | 2012-09-19 | 大理学院 | Method for rapidly flocculating blue-green algae in water body |
| CN104692504A (en) * | 2013-12-09 | 2015-06-10 | 云南师范大学 | Method for pretreatment of natural rubber wastewater and recycling of crude proteins |
| CN104925873A (en) * | 2014-03-19 | 2015-09-23 | 徐迪青 | Green-component water purifier |
| CN103936101B (en) * | 2014-04-18 | 2015-02-25 | 芜湖凯奥尔环保科技有限公司 | Moringa oleifera and bauxite cyanobacteria combined treating agent and preparation method thereof |
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