CN105668751A - Low-cost, environmental-protection and high-efficiency alga removal combination material - Google Patents
Low-cost, environmental-protection and high-efficiency alga removal combination material Download PDFInfo
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- CN105668751A CN105668751A CN201610002039.6A CN201610002039A CN105668751A CN 105668751 A CN105668751 A CN 105668751A CN 201610002039 A CN201610002039 A CN 201610002039A CN 105668751 A CN105668751 A CN 105668751A
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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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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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
- 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)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a low-cost, environmental-protection and high-efficiency alga removal combination material. The high-efficiency alga removal combination material capable of rapidly eliminating algae in water and continuously reducing the alga bloom risk of water is disclosed against abundant growth of alga bloom in water reservoirs, lakes, drinking water sources or scenic water. The high-efficiency alga removal combination material comprises a natural mineral modified material and a removal assistant. The natural mineral modified material mainly comprises zeolite, active carbon, mica powder, kaolin or diatomite and other macro-porous mineral matter powders as raw materials, and can adsorb and co-precipitate alga particles and phosphates through acid modification and function group fixing. The modified material can be added to eutrophic water in an in situ manner, and can also be used in drinking water factories. When in situ addition is carried out, the natural mineral modified material is only added if the density of algae in water, and the removal assistant is added if the density of the algae is high in order to improve the effect. The alga removal material does not use toxic substances in the modification process, can efficiently remove algae in the water, and also can remove nitrogen and phosphorus, reduce release of intracellular toxic substances and reduce the alga bloom risk. The natural mineral modified material is especially suitable for alga control of the drinking water sources, the lakes and urban landscape waters, or is used in stringent control or risk prevention of the alga bloom.
Description
Technical field
The invention belongs to the water quality safety safeguards technique field of lake, reservoir or potable water source district, particularly to preparation and the using method thereof of the friendly efficient algae removal combined material of a kind of low cost environment.
Background technology
Algal bloom contamination accident is increasingly becoming the important form of China's water pollution, how to realize that the low cost of Measures of Algae in Water Body wawter bloom is innoxious and resource has become the focus of whole world research, have wide market potential. At present common both at home and abroad algae removal technology mainly has manually/and machinery removes algae two ways except algae and chemical agent, wherein except algae generally adopts, algae is separated from water artificial/machinery by mechanical salvaging or the artificial mode salvaged, secondary pollution of water can be avoided, this add chemical agent except algae mode not be used in water body, but need specialty algae removal device, clearance time is long, and cannot avoid the outburst again of algal bloom. The existing method adding chemical agent mainly adds the flocculant such as aluminium polychlorid in water body, and the method is suitable for conveniently, regulation effect is high, but can introduce a large amount of metallic element in water body, threatens the safety of Ecology. And day by day urgent along with to efficient algae removal technical need, natural material is applied to Measures of Algae in Water Body and removes and also get more and more. National inventing patent (application number 201110192915.3) discloses preparation method and the application thereof of a kind of modified kaoline alga flocculating agent, this material adopts the aluminium base chloride of hydroxyl and chitin modified Kaolin to do except algae material, has good algae removal effect. But algae is effectively removed by such material modified flocculation mainly utilizing high molecular polymer, and Water phosphorus ligands is limited in one's ability, it is impossible to cut down Measures of Algae in Water Body and grow speed. National inventing patent (application number 201110194044.9) discloses a kind of modified sandy soil flocculation material synthetic method for storehouse, lake eutrophication remedy, the method utilizes the raw materials such as natural Carapax Eriocheir sinensis, Crusta Penaeus seu Panulirus by soda acid modified synthesis algae flocculation material, its manufacture method is simple and can realize garbage as resource, there is good promotional value, but the method is still utilization and machine high molecular polymer is fixed on soil particle surface, realize the removal to algae by the flocculation of self of high molecular polymer. Additionally, natural Carapax Eriocheir sinensis and Crusta Penaeus seu Panulirus distributed areas and season is limited, cost recovery is too high, it is impossible to apply in actual burst algal bloom accident emergency.
The present invention proposes from a kind of natural minerals method of modifying, and without in high molecular polymer situation, and functional group modified by acid is fixed so as to possess absorption, cosedimentation algae granule and phosphatic ability.Basis is material modified not only original position can be added to eutrophication water, also also apply be applicable to drinking water plant, is the very promising algae removal technology of one.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides the friendly efficient algae removal combined material preparation of a kind of low cost environment and using method thereof. This material is applicable to potable water source district, lake and urban landscape water body algae and controls, or is used for emergency flight control or the risk prevention of algal bloom.
The technical solution adopted in the present invention be efficient algae removal combined material include natural minerals material modified and remove auxiliary agent two kinds. The material modified preparation method of natural minerals is: 1) natural minerals is size-reduced, after washing, be positioned in the acid solution of 0.2-5M activation 20min, filter and be washed to neutrality; 2) after activation, natural minerals adds lanthanum chloride solution, mixing immobilized metal by liquid-solid ratio 1: 5-1: 50; 3), after modified natural minerals natural air drying or high temperature are dried, it is ground into 100～200 orders; Removing auxiliary agent preparation method is: adopts the macromolecular material such as chitosan, aluminium polychlorid to add dilute acid soln and is settled to 0.2～5g/L.
The efficient algae removal combined material of described a kind of low cost environment close friend can be added in the lake of eutrophication, reservoir, potable water source district or landscape water body by direct in-situ; Also can being added in pending water, toss area can be pumping plant intake, or the position of any one the added liquid preparation before drinking water plant mixed cell.
When the friendly efficient algae removal combined material of described a kind of low cost environment takes original position to add, as low in Measures of Algae in Water Body wawter bloom density or when algae is in deceleration trophophase and endogenous respiration phase more, the material modified dosage of natural minerals is 0.05-1.5kg/m2, it is achieved algae High-rate sedimentation is removed; As higher in algae density or when being in exponential phase, the material modified dosage of natural minerals is 1.5-3.5kg/m2, and add removal auxiliary agent lifting algae removal effect in 1.5-2.5: 1 ratio.
The efficient algae removal combined material that described a kind of low cost environment is friendly, need to add natural minerals for high algae water material modified and when removing auxiliary agent simultaneously, add natural minerals material modified after add removal auxiliary agent again after stirring mixing 2～10min.
The efficient algae removal natural minerals of described a kind of low cost environment close friend can adopt one or more of zeolite, activated carbon, clay, kieselguhr, mica powder, Kaolin, meerschaum or kieselguhr etc., and mixed proportion should adjust according to algae type and water body Middle nutrition substrate concentration.
The efficient algae removal combined material that described a kind of low cost environment is friendly, when cutting down water body burst alga eruption risk with this material, the material modified dosage of natural minerals needs according to acceptable wawter bloom accident risk probability calculation, is generally during wawter bloom accident the 30%～60% of dosage. .
Compared with prior art, beneficial effects of the present invention has: 1) environmental protection, natural minerals used is common minerals matter, cost is low, and inherently environmental friendliness shaped material, chitosan solution is also natural organic high-molecular material, nontoxic, is suitable to the higher reservoir of water quality requirement, Hu Ku are used; 2) applied widely, except algae efficiency is high, instant effect, should can remove the frustule of 99% in water body in 10 minutes except algae composite, make lake, river High-speed clarification, frustule conglomerate sinks to bed mud;3) there is higher buffer capacity, sustainable reduction algal bloom burst accident risk; 4) this material is to the removal efficiency of phosphorus up to 90%, and has organic removal ability such as Algae toxins in alga cells, can fundamentally control algae and reduce the Algae toxins release pollution to water body.
Detailed description of the invention
Embodiment 1:
(being equivalent to algae cell density is 2.0 × 10 to adopt efficient algae removal combined material to remove in high density algae waste water9Cell/L) algae, wherein natural minerals adopts zeolite and meerschaum, removes auxiliary agent and adopts chitosan solution. Adopt the method strengthening of the present invention except algae checking research: 1) in 5 reactors, pour OD into680Be 0.1 containing algae suspension 500mL, the natural minerals adding 0.5g/L, 1.0,1.5,2.0,2.5 respectively is material modified; 2) it is placed on magnetic stirrer and starts stirring, each removal auxiliary agent adding 1mL/L after 2 minutes; 3) mixed solution first quickly stirring (200-250r/min) 3 minutes, then (100-150r/min) 15 minutes more at a slow speed; 4) when algae mixed solution stand after, by time adopt sampler 3cm place, underwater water sampling mensuration OD680, and calculate the clearance of algae. Remove result and show that modified natural minerals algae flocculation material is when dosage reaches 1.5g/L, algae removal rate has reached more than 90%, and in the born of the same parents of algae release, organic aggregation clearance such as Algae toxins reaches 96.6% (three-dimensional fluorescence peak value drops to 44.25 from 1308).
Embodiment 2:
Adopting efficient algae removal combined material to remove eutrophication reservoir water body middle and high concentration algae, reservoir top algae cell density is 1.0 × 108--2.0×109Cell/L, adds modified meerschaum flocculant in reservoir, and control dosage is 0.3kg/m2, adopt marine propeller stirring; 200mL/m is added after stirring 5-10 minute2Chitosan solution, and adopt marine propeller continue stirring 3-20 minute. After standing by time 5cm place, underwater water sampling measure algae OD680. Remove result and show that modified meerschaum algae flocculation material reaches 0.3kg/m at dosage2Time, surface water algae removal rate can reach more than 92%, and the clearance of Algae toxins is up to 97% (three-dimensional fluorescence peak value from 3706 to 114.25).
Claims (6)
1. a low cost environment is friendly efficient algae removal combined material preparation and using method thereof, it is characterised in that it is material modified and remove auxiliary agent two kinds that efficient algae removal combined material includes natural minerals; The material modified preparation method of natural minerals is: 1) natural minerals is size-reduced, after washing, be positioned in the acid solution of 0.2-5M activation 20min, filter and be washed to neutrality; 2) after activation, natural minerals adds metal-chloride salt solution, mixing immobilized metal by liquid-solid ratio 1: 5-1: 50; 3), after modified natural minerals natural air drying or high temperature are dried, it is ground into 100～200 orders; Removing auxiliary agent preparation method is: adopts the macromolecular material such as chitosan, aluminium polychlorid to add dilute acid soln and is settled to 0.2～5g/L.
2. the efficient algae removal combined material that a kind of low cost environment according to claim 1 is friendly is prepared and using method, it is characterized in that: material modified can be added in the lake of eutrophication, reservoir, potable water source district or landscape water body by direct in-situ, also can be added in the pending water of water factory, toss area can be pumping plant intake, or the position of any one the added liquid preparation before drinking water plant mixed cell.
3. the efficient algae removal combined material of a kind of low cost environment close friend according to claim 1,2 is prepared and using method, it is characterized in that: when adopting original position to add, as low in Measures of Algae in Water Body wawter bloom density or when algae is in deceleration trophophase and endogenous respiration phase more, the material modified dosage of natural minerals is 0.05-1.5kg/m2, it is achieved algae High-rate sedimentation is removed;As higher in algae density or when being mostly in exponential phase, the material modified dosage of natural minerals is 0.5-3.5kg/m2, and add removal auxiliary agent lifting algae removal effect in 1.5-2.5: 1 ratio.
4. the efficient algae removal combined material of a kind of low cost environment close friend according to claim 1,2,3 is prepared and using method, it is characterized in that: when need to add simultaneously natural minerals material modified and remove auxiliary agent time, should first add natural minerals material modified, after mix and blend 2～10min, add removal auxiliary agent again.
5. the efficient algae removal combined material that a kind of low cost environment according to claim 1 is friendly is prepared and using method, it is characterized in that: natural minerals can adopt one or more of zeolite, activated carbon, clay, kieselguhr, mica powder, Kaolin, meerschaum or kieselguhr etc., mixed proportion should adjust according to algae type and water body Middle nutrition substrate concentration.
6. the efficient algae removal combined material of a kind of low cost environment close friend according to claim 1,2,3 is prepared and using method, it is characterized in that: when cutting down water body burst alga eruption risk with this material, the material modified dosage of natural minerals needs according to acceptable wawter bloom accident risk probability calculation, is generally during wawter bloom accident the 30%～60% of dosage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610002039.6A CN105668751A (en) | 2016-01-06 | 2016-01-06 | Low-cost, environmental-protection and high-efficiency alga removal combination material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610002039.6A CN105668751A (en) | 2016-01-06 | 2016-01-06 | Low-cost, environmental-protection and high-efficiency alga removal combination material |
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| CN105668751A true CN105668751A (en) | 2016-06-15 |
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| CN201610002039.6A Pending CN105668751A (en) | 2016-01-06 | 2016-01-06 | Low-cost, environmental-protection and high-efficiency alga removal combination material |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106630071A (en) * | 2017-01-10 | 2017-05-10 | 水利部交通运输部国家能源局南京水利科学研究院 | Preparation method and application of high-efficiency flocculation algae-removal material with environmental adaptation characteristics |
| CN108383220A (en) * | 2018-02-09 | 2018-08-10 | 同济大学 | A kind of method of sewage microalgae and synchronous nitrogen and phosphorus trapping recycling |
| CN110937755A (en) * | 2019-12-04 | 2020-03-31 | 珠江水利委员会珠江水利科学研究院 | Three-dimensional biological hatching bed using novel algae control agent and hatching method thereof |
| CN111377495A (en) * | 2019-07-17 | 2020-07-07 | 环亚(天津)环保科技有限公司 | Natural mineral restoration agent for inhibiting blue-green algae outbreak |
| CN111410278A (en) * | 2016-08-31 | 2020-07-14 | 严建泗 | Composition for inhibiting algae production |
| CN112499741A (en) * | 2020-11-25 | 2021-03-16 | 联科华技术有限公司 | Application of monatomic catalyst as wastewater treatment flocculant |
| CN112717889A (en) * | 2020-11-25 | 2021-04-30 | 王若兮 | Composite modified clay for removing algae and copper, preparation method and application thereof |
| JP2022073863A (en) * | 2020-11-02 | 2022-05-17 | 江西省▲環▼境保▲護▼科学研究院 | Water purifying material mainly formed of kaolin and preparation method and use thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111410278A (en) * | 2016-08-31 | 2020-07-14 | 严建泗 | Composition for inhibiting algae production |
| CN106630071A (en) * | 2017-01-10 | 2017-05-10 | 水利部交通运输部国家能源局南京水利科学研究院 | Preparation method and application of high-efficiency flocculation algae-removal material with environmental adaptation characteristics |
| CN106630071B (en) * | 2017-01-10 | 2018-03-13 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of efficient flocculating with environmental suitability feature removes algae material preparation method and application |
| CN108383220A (en) * | 2018-02-09 | 2018-08-10 | 同济大学 | A kind of method of sewage microalgae and synchronous nitrogen and phosphorus trapping recycling |
| CN111377495A (en) * | 2019-07-17 | 2020-07-07 | 环亚(天津)环保科技有限公司 | Natural mineral restoration agent for inhibiting blue-green algae outbreak |
| CN110937755A (en) * | 2019-12-04 | 2020-03-31 | 珠江水利委员会珠江水利科学研究院 | Three-dimensional biological hatching bed using novel algae control agent and hatching method thereof |
| JP2022073863A (en) * | 2020-11-02 | 2022-05-17 | 江西省▲環▼境保▲護▼科学研究院 | Water purifying material mainly formed of kaolin and preparation method and use thereof |
| JP7125974B2 (en) | 2020-11-02 | 2022-08-25 | 江西省▲環▼境保▲護▼科学研究院 | Kaolin-based water purification material, its preparation method and its use |
| CN112499741A (en) * | 2020-11-25 | 2021-03-16 | 联科华技术有限公司 | Application of monatomic catalyst as wastewater treatment flocculant |
| CN112717889A (en) * | 2020-11-25 | 2021-04-30 | 王若兮 | Composite modified clay for removing algae and copper, preparation method and application thereof |
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Application publication date: 20160615 |