CN108502996A - A kind of ecological flocculant of quick processing cyanobacteria water body and preparation method thereof and processing method - Google Patents
A kind of ecological flocculant of quick processing cyanobacteria water body and preparation method thereof and processing method Download PDFInfo
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- CN108502996A CN108502996A CN201810177086.3A CN201810177086A CN108502996A CN 108502996 A CN108502996 A CN 108502996A CN 201810177086 A CN201810177086 A CN 201810177086A CN 108502996 A CN108502996 A CN 108502996A
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
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- Environmental & Geological Engineering (AREA)
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
A kind of ecological flocculant of quick processing cyanobacteria water body, including following component, are counted in parts by weight：15 20 parts of igneous rock；5 10 parts of natural zeolite；46 parts of ceramics；46 parts of allophane；8 12 parts of Emathlite；15 20 parts of atlapulgite；10 15 parts of volcanic ash soil；5 10 parts of lime；5 10 parts of gypsum；5 10 parts of the calcium chloride refined out from shell.
Description
Technical field
The invention belongs to the quick Treatment process fields of cyanobacteria water body, and in particular to a kind of ecology of quick processing cyanobacteria water body
Flocculant and preparation method thereof.
Background technology
In general, rivers and creeks, lake, in reservoir, due to living drainage, livestock products draining and fertilizer or plant drainage etc. are a large amount of
It flows into, nitrogen, the substances increase such as phosphorus causes eutrophication to be aggravated, cyanobacteria and alga eruption.
As the countermeasure of corresponding cyanobacteria etc., is much studied and tested up to now, until effectual property today
Method is not established yet.Recently, many lakes and reservoir still break out cyanobacteria, and present situation is countermeasure all in passive state.
The eutrophication in rivers and creeks, lake, marine site in order to prevent, it is necessary to highly remove the phosphorus in these natural environmental waters.As eutrophy
Change the exemplary of phenomenon, red tide, the generation of cyanobacteria, it is stated that as the generation of this phenomenon, phosphorus concentration reaches 0.02mg/L or more
It is caused by being easy to.
In the past, the water process in this way as corresponding cyanobacteria, various flocculants were employed.Such flocculant,
It is referred to as PAC（Aluminium polychloride）The high polymer coagulant of inorganic flocculating agent, anion or cationic is pushed out.
For example, above-mentioned PAC（Aluminium polychloride), the inorganic flocculating agents such as frerrous chloride, with（Fe / P）Or（AL / P）
The injection stirring of 2~3 or more molar ratio, and sediment is formed, and then the high polymer coagulant that addition is above-mentioned, in coagulating bath
After forming flco precipitation, the flocculation of phosphorus removes technology and is just known.
However, above-mentioned PAC（Aluminium polychloride）In acidity（PH value 3.5~5）, the pH value of the remaining water after precipitation process is also in
Acidity, therefore neutralisation treatment is necessary, in addition, there is also the worries containing safeties such as heavy metal ion.
In other words, in the water for flowing into lakes and marhshes etc.（Handle water）Stirred tank in put into PAC（Aluminium polychloride）Stirring
When, there are pH values to change this problem.When pH value is low, sodium hydroxide, calcium hydroxide etc. are added；PH value it is high when
It waits, adds sulfuric acid, hydrochloric acid etc., final pH value is near 7, it is necessary to there is such PH to adjust（Neutralisation treatment）Process.
In addition, for above-mentioned high polymer coagulant, need to dissolve high molecular equipment（Macromolecule dissolution slot）, and excessively
In the case of putting into the water such as lake, the macromolecule of gelation is easy to block the fish gill, has the danger for leading to fish death.
In this way, since the pH value for releasing draining adjusts（Neutralisation treatment）, heavy metal ion the problem of containing, excessive high score
Use problem of sub- cohesiveness etc., therefore replace chemicals cheap and in water and peace that the influence of surrounding enviroment is few
The heart, safe flocculating agent are by active demand.
Invention content
In view of the deficiencies of the prior art, the present invention provides one kind saving wadding on the basis of reaching flocculating effect
The step of pH during solidifying agent use is adjusted, does not need special macromolecule dissolution equipment yet, meanwhile, the fish in water will not be made
It is dead with aquatile, and the phosphorus and nitrogen being deposited in the water of the generations such as lake and rivers and creeks, make rivers and creeks, lake water, the water such as draining
What body agglutination became clean feel at ease, the ecological flocculant of quick processing cyanobacteria water body of safety and preparation method thereof and processing side
Method.Purpose to realize the present invention provides following technical scheme：A kind of ecological flocculant of quick processing cyanobacteria water body, it is special
Sign is to include following component, counts in parts by weight：
15-20 parts of igneous rock
5-10 parts of natural zeolite
It is 4-6 parts ceramic
4-6 parts of allophane
8-12 parts of Emathlite
15-20 parts of atlapulgite
10-15 parts of volcanic ash soil
5-10 parts of lime
5-10 parts of gypsum
5-10 parts of the calcium chloride refined out from shell
Preferably, gypsum includes the semi-hydrated gypsum of the dihydrate gypsum of 30%-50%wt, 50%-70%wt.Wherein dihydrate gypsum is
In 1 molecule of calcium sulfate, Caso4 2H2O/ monoclinic crystal calcium sulfate that 2 moisture are combined into as the crystallization water：It is two hydrations
Object, moreover, using iron oxide and gypsum as the powdery cleanser of primary raw material, on the basis of cheap, grain in cleanser
Diameter is small, large specific surface area, therefore physical absorption, chemisorption effect are good, is effective to heavy metal processing, the processing of phosphorus and fluorine
's.
Semi-hydrated gypsum is（The prismatic crystals of CaSO4 1/2H2O/tri-）Calcium sulfate hemihydrate, by heating gypsum, outflow water
Point, only a remaining quasi integration water is changing into semi-hydrated gypsum（It is referred to as bassanite, the plaster of paris）Variation.In addition, semi-hydrated gypsum is in stone
In cream, especially processing water and processing soil can be maintained neutral region, therefore be also utilized as curing materials.
Preferably, Emathlite is using the natural mineral of montmorillonite system as main component, component is by weight percentage
The aluminium oxide of silica, 10%~20%wt, the iron oxide of 0 ~ 10%wt, 0 ~ 8%wt magnesia, sodium oxide molybdena including 60~80wt%
Add up to the water of 0 ~ 3%wt, 4~20wt% with potassium oxide.
Preferably, atlapulgite is the product activated according to sulfuric acid treatment by above-mentioned Emathlite, component is pressed
Weight percent meter includes the oxygen of the silica of 75~85wt%, the aluminium oxide of 9~13wt%, the iron oxide of 1~2wt%, 0 ~ 1wt%
Change the magnesia of calcium, 1~3wt%, sodium oxide molybdena and potassium oxide add up to the water of 0 ~ 1wt%, 5~9wt%.
Preferably, the grain size of Emathlite and atlapulgite, maximum particle diameter is 10 μm ~ 200 μm, although without special
Limitation, but maximum particle diameter be 200 μm or less（Preferably 100 μm or less）, average diameter is 10 μm~50 μm（Preferably 20
μm~30 μm）Effect it is more preferable.For absorption property, using surface area be 150~300 ㎡/gram, pore average diameter is
50 Ethylmercurichlorendimides.
In above-mentioned each component：
Igneous rock is divided into volcanic rock（The substance of magma quick refrigeration solidification）And plutonic rock（The substance of magma slowly cooled and solidified）
Two kinds.The type that there are many volcanic rock is roughly divided into basalt, andesite, three kinds of rhyolite.Basalt is by pyroxene and a large amount of
Calcium content more than feldspar composition, andesite is made of feldspar, the quartz etc. more than pyroxene, hornblend and calcium content or sodium content
Volcanic rock.
Montmorillonite can be divided into the Ca types of Na types and calcic containing sodium, and either water or oil can adsorb mixing.
Emathlite, atlapulgite raw material soil be natural clay mineral, not certain layer structure, have similar to from
The cationic exchangeability of sub-exchange resin.According to activation, a cationic part is exchanged with hydrogen ion, forms replaceability
Hydrogen.General 10~30m. e/the 100g of this amount but show that the no chemistry of other sorbents is living as natural mineral
Property.
Natural zeolite is that volcanic rock solidifies the silica to be formed（Silica）Aluminium oxide（Aluminium oxide）Mineral.Due to
Zeolite surface area is big, so having strong attraction molecule ability, adsorption function and ion exchanging function.
Volcanic ash soil is using volcanic ash waste as material, and surface layer hoards extremely a large amount of black corruption and plants the soil to be formed.
Due to the allophane rich in clay mineraloid（Allophane）, therefore be easy to combine, keep rotten plant, also, because porosity
Height, water-retaining property is high, big to the absorbability of the anion as phosphate ion.Phosphorus has and has strong adsorb, no in andosol
The property of dissolution.
In addition, volcanic ash soil, be broadly known as breaking leftover matrix by volcano and the soil that is formed, contain volcano below
The substance of grey soil and volcano grey matter cohesive soil.In addition, andosol is formed by volcanic ash matrix, surface layer is gradually accumulated greatly
The rotten of amount is planted, and allophane is rich in（Allophane）, iron, aluminium soil.
Also, volcano grey matter cohesive soil is that the engineering classification corresponding to fine grained soil of the parent soil material for volcanic ash is gained the name,
In volcanic ash soil, it may be said that be equivalent to the subsoil of Diluvial epoch volcanic ash soil.Volcanic ash soil, due to can be with the groups such as oyster shell
It closes, can also be combined with the combustion products of sludge etc., so diversified phosphorus sorbing material has use.Many phosphorus is inhaled
Enclosure material can remove the phosphorus in water, be removed to the phosphorus of adsorption material surface cure further according to the method for physics, chemistry, realize
Reclamation of phosphorus resource.
Moreover, the above-mentioned allophane of volcano system（Allophane）, due to active aluminium content height, the absorption coefficient of phosphoric acid
Height, it is general carry out ion sorption soil clay, being the silicate mineral of clay bone has layered arrangement, the iron contained from
Son generates Iron Oxide Minerals due to being aoxidized according to the oxygen in air.
The primary raw material of calcium hydroxide is calcium hydroxide：Ca (OH) 2, quick lime（CaO）With the reaction of water（Digestion）It obtains
Substance, after digestion, according to classification adjustment granularity be converted into product, be used for gas exhaust treatment, fertilizer, water and soil stabilization processing, water
Processing etc. can specifically remove sulphur oxide and rivers and creeks and soil neutralizer for acidification.
Purpose to realize the present invention provides a kind of preparation method of the ecological flocculant of quick processing cyanobacteria water body, special
Sign is to include the following steps：Atlapulgite, igneous rock, lime input batch mixer are stirred into 5min with the speed of 120r/min；
Remaining raw material is put into batch mixer and above-mentioned mixture, 5min is stirred with the speed of 120r/min together.
Purpose to realize the present invention provides a kind of ecological flocculant process water body method of quick processing cyanobacteria water body,
It is characterized in that including the following steps：By in the flocculant input blue algae water, 5min, precipitation are stirred with 200~300r/min
The dosage of 5min, the flocculant are 0.02~0.04% mass parts.
The key problem in technology of the present invention is：
Efficient ecological flocculant primary raw material is the conditioned soils such as allophane, Emathlite, atlapulgite, volcanic ash soil, and not
Understand argillization again.For porous structure, it is conducive to ion-exchange reactions, filtering reaction etc., plays good water purification, having makes
The effect of mud scum sedimentation, improves COD, and Phosphate Sorption, iron, manganese are very outstanding, contain the activity of sulfate reducing bacteria, also inhibit
Hydrogen sulfide is generated, the oxygen consumption of bottom is controlled.
Disclosure is particularly well suited to handle cyanobacteria：Quickly improve water turbidity, black smelly situation short time after adding flocculant
Inside become limpid.After one month, algal grown is inhibited：Chlorophyll a removal rate 62%.Simultaneously make mud scum, ferrous components,
Manganese ingredient settles.Because ferromanganese ion can promote photosynthesis, it just can contain algae reproduction by being allowed to sedimentation.
Stabilization effect：Flco is stablized, that is, the block that flocculates is stablized, and dirty substance will not be detached, can be effectively prevented from again
Secondary pollution.
It is innoxious：Using natural mineral matter as primary raw material, it is safe from harm to natural environment.Totally nontoxic side effect.
Advantageous effect of the present invention：The flocculant of the present invention, with igneous rock, natural zeolite, ceramics, allophane, acidity
Carclazyte, atlapulgite, volcanic ash soil, lime, gypsum, the calcium chloride that is refined out from shell are raw material, according to ions binding, hydrogen
In conjunction with the multiplication effect of, physical bond, the phosphorus in treated water, nitrogen, iron, manganese, suspended matter, muddy cause object etc. is made quickly to be formed
Flco, in adsorbing water nitrogen, phosphorus while, make mud scum, iron precipitation, and using photosynthesis promotion manganese precipitation, such phase
Auxiliary coordinate can achieve the effect that inhibit the growth of the algae such as cyanobacteria；
For the present invention using natural mineral matter as primary raw material, entire flocculation stirring process only needs 5min that can complete.With PAC ratios
Compared with purification water is its 1.4 times to 2 times；The turbidity for handling water is 1.（Other flocculants are 2 ~ 6）；The yield of flocculation block is few
To the 1/3 of PAC, flocculation block moisture is few；The block that flocculates is stablized, and dirty substance will not detach again, can be effectively prevented from secondary dirt
Dye；
It can apply in the water process of river, lakes and marhshes, be used cooperatively with solid current stirring flocculation deposition apparatus, there is removal
Cyanobacteria；Quickly improve water turbidity；Inhibit mud scum；Remove COD, nitrogen phosphorus；Project characteristics, the tool such as inhibit algal grown environment friendly
There is apparent Social benefit and economic benefit.
Description of the drawings
Fig. 1 is previous PAC and the comparison figure of the present invention relevant flocculant and flco occurrence quantity.
Fig. 2 be the picture shown before the use of the relevant flocculant of the present invention.
Fig. 3 be the picture shown after the use of the relevant flocculant of the present invention.
Specific implementation mode
Embodiment 1：A kind of ecological flocculant of quick processing cyanobacteria water body, including following component, are counted in parts by weight：
15-20 parts of igneous rock
5-10 parts of natural zeolite
It is 4-6 parts ceramic
4-6 parts of allophane
8-12 parts of Emathlite
15-20 parts of atlapulgite
10-15 parts of volcanic ash soil
5-10 parts of lime
5-10 parts of gypsum
5-10 parts of the calcium chloride refined out from shell
Gypsum includes the semi-hydrated gypsum of the dihydrate gypsum of 30%-50%wt, 50%-70%wt.
Emathlite using the natural mineral of montmorillonite system as main component, component by weight percentage include 60~
The silica of 80wt%, the aluminium oxide of 10%~20%wt, the iron oxide of 0 ~ 10%wt, 0 ~ 8%wt magnesia, sodium oxide molybdena and potassium oxide
The water of total 0 ~ 3%wt, 4~20wt%.
Atlapulgite is the product activated according to sulfuric acid treatment by above-mentioned Emathlite, and component is by weight percentage
Meter include the silica of 75~85wt%, the aluminium oxide of 9~13wt%, the iron oxide of 1~2wt%, the calcium oxide of 0 ~ 1wt%, 1~
The magnesia of 3wt%, sodium oxide molybdena and potassium oxide add up to the water of 0 ~ 1wt%, 5~9wt%.
The grain size of Emathlite and atlapulgite, maximum particle diameter are 10 μm ~ 200 μm, the use of surface area are 150~300
㎡/gram, pore average diameter is 50 Ethylmercurichlorendimides.
Embodiment 2 ~ 6：With reference to embodiment 1, design parameter is from shown in following table：
Embodiment 7：A kind of preparation method of the ecological flocculant of quick processing cyanobacteria water body, includes the following steps：It will be active white
Soil, igneous rock, lime input batch mixer stir 5min with the speed of 120r/min；
Remaining raw material is put into batch mixer and above-mentioned mixture, 5min is stirred with the speed of 120r/min together.
Embodiment 8：A kind of ecological flocculant process water body method of quick processing cyanobacteria water body, includes the following steps：It will
In the flocculant input blue algae water, 5min is stirred with 200~300r/min, precipitates 5min, the dosage of the flocculant is
0.02~0.04% mass parts.
After being handled using the flocculant of the present invention, dihydrate gypsum can be added into dewatered wawter bloom, mixing is simultaneously
Moisture is adjusted, semi-hydrated gypsum system curing materials, after stirring curing process, open air drying are added, you can as Fertilizer application, is realized
Recycling.
By above-mentioned natural mineral be processed into powdered flocculant and in the past with PAC reaction generate flco quantity compared with
（The blue algae water in lake（Raw water）Pour into beaker experiments）, the 1/3 or less of the flco production quantity ratio PAC of flocculant of the invention goes back
It is few, and become the few flco of water content, the turbidity for handling water is equivalent to 1, and surprising is transparent.
Moreover, flocculation sediment speed is only quickly a few minutes, as shown in Fig. 2, in order to keep cyanobacteria and dirty substance strong
Power Adsorption, makes water quality rapidly purify, and transparency is got higher.Moreover, the additive amount per 1m3 can pass through 0.01~0.09%
It is micro handle, therefore processing cost becomes cheap.In addition, dropping to 10 after the raw water flocculation sediment of COD50 or more hereinafter, simultaneously
And flco is stablized, not no detaching again there is a situation where polluter（It is insoluble）.
In addition, the flocculant about the present invention, the step of pH adjustment during flocculant use can be saved, also it is not required to
Special macromolecule dissolution equipment, severe natural environment is wanted also can simply to use, significantly the operation of easy user.
Moreover, the flocculant about the present invention, be made of using nature mineral, it is safe, can be in natural water
It is safe to use.
In addition, about flocculant of the invention, the clarified solution pH value after flocculation sediment has almost no change, with lake and dirt
The water quality of dye is unrelated, without adjusting pH value（Neutralisation treatment is not necessarily to）, it can use like this in large-scale water process, by
Big in the flco of secondary recovery, the content of material such as nitrogen, phosphorus are more, after implementing dehydration, drying process, can be applied flexibly as fertilizer.
Meanwhile it is few and curing degree is high, the polluter in flco using the flco amount that the flocculant of the present invention generates
Water body will not be escaped into again cause secondary pollution.
The flocculant of the present invention, with the PAC peddled in the market（Aluminium polychloride）Equal chemical products compare, and have both possessed same
It more than degree is aggregated effect, can also be completed with few additive amount.Furthermore raw material are nature mineral（Natural origin）,
Because can also be used to the troubling field of environment and health effect.
Claims (7)
1. a kind of ecological flocculant of quick processing cyanobacteria water body, it is characterised in that including following component, count in parts by weight：
15-20 parts of igneous rock
5-10 parts of natural zeolite
It is 4-6 parts ceramic
4-6 parts of allophane
8-12 parts of Emathlite
15-20 parts of atlapulgite
10-15 parts of volcanic ash soil
5-10 parts of lime
5-10 parts of gypsum
5-10 parts of the calcium chloride refined out from shell.
2. a kind of ecological flocculant of quick processing cyanobacteria water body according to claim 1, it is characterised in that gypsum includes
The dihydrate gypsum of 30%-50%wt, the semi-hydrated gypsum of 50%-70%wt.
3. a kind of ecological flocculant of quick processing cyanobacteria water body according to claim 1, it is characterised in that Emathlite
Using the natural mineral of montmorillonite system as main component, component includes the silica of 60~80wt%, 10% by weight percentage
The aluminium oxide of~20%wt, the iron oxide of 0 ~ 10%wt, 0 ~ 8%wt magnesia, sodium oxide molybdena and potassium oxide add up to 0 ~ 3%wt, 4~
The water of 20wt%.
4. a kind of ecological flocculant of quick processing cyanobacteria water body according to claim 3, it is characterised in that atlapulgite
It is the product activated according to sulfuric acid treatment by above-mentioned Emathlite, component includes 75~85wt% by weight percentage
Silica, the aluminium oxide of 9~13wt%, the iron oxide of 1~2wt%, the calcium oxide of 0 ~ 1wt%, 1~3wt% magnesia, oxidation
Sodium and potassium oxide add up to the water of 0 ~ 1wt%, 5~9wt%.
5. a kind of ecological flocculant of quick processing cyanobacteria water body according to claim 1, it is characterised in that Emathlite
And the grain size of atlapulgite, maximum particle diameter are 10 μm ~ 200 μm, using surface area be 150~300 ㎡/gram, pore is average straight
Diameter is 50 Ethylmercurichlorendimides.
6. a kind of preparation method of the ecological flocculant of quick processing cyanobacteria water body as described in one of claim 1 ~ 5, special
Sign is to include the following steps：Atlapulgite, igneous rock, lime input batch mixer are stirred into 5min with the speed of 120r/min；
Remaining raw material is put into batch mixer and above-mentioned mixture, 5min is stirred with the speed of 120r/min together.
7. a kind of ecological flocculant process method of quick processing cyanobacteria water body as described in one of claim 1 ~ 5, feature
It is to include the following steps：By in the flocculant input blue algae water, 5min is stirred with 200~300r/min, precipitates 5min,
The dosage of the flocculant is 0.02~0.04% mass parts.
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Cited By (2)
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| CN111704218A (en) * | 2020-06-19 | 2020-09-25 | 德蓝水技术股份有限公司 | Special flocculating agent for industrial wastewater and preparation method thereof |
| CN113197151A (en) * | 2021-04-15 | 2021-08-03 | 集美大学 | Method and system for ecologically controlling cyanobacterial bloom in pond culture water body |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20180907 |