CN109160612A - A kind of compound algae preparation and its method quickly removing heavy metal in water removal - Google Patents
A kind of compound algae preparation and its method quickly removing heavy metal in water removal Download PDFInfo
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- CN109160612A CN109160612A CN201811246489.5A CN201811246489A CN109160612A CN 109160612 A CN109160612 A CN 109160612A CN 201811246489 A CN201811246489 A CN 201811246489A CN 109160612 A CN109160612 A CN 109160612A
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- Prior art keywords
- heavy metal
- water
- fresh
- weight
- removing heavy
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
Abstract
The invention discloses a kind of compound algae preparations and its method for quickly removing heavy metal in water removal, and the compound algae preparation includes fresh water cotton green alga, zinc salt and the pH adjusting agent of the fresh -laid egg white nucleus chlorella of 10-100 parts by weight, 10-100 parts by weight.Compound algae preparation and method of the invention realizes the efficient absorption to mantoquita, lead salt by using the combination of fresh -laid egg white nucleus chlorella and fresh water cotton green alga；And it also found, when zinc salt is added in compound algae preparation, the absorption of lead salt is more thorough.The compound algae preparation and method can be widely applied to wastewater treatment process, be with a wide range of applications.
Description
Technical field
The present invention relates to the processing of sewage, especially a kind of quickly to go to the compound algae preparation of heavy metal and its side in water removal
Method.
Background technique
The heavy metal amount of the mankind to environmental emission is increasing, not only seriously polluted water resource, returns mankind's itself
Health brings great harm.Currently, the improvement to heavy metal-polluted water generally uses physics, chemistry and biological method,
Such as the precipitation method, chelating resin method, macromolecule trapping, natural zeolite absorption method and ion-exchange etc..Above method
Purifying rate it is very high, but process flow is mostly very long, and cumbersome, processing cost is expensive.Therefore people, which have been working hard, seeks
Seek more environmentally friendly method.
Algae is very strong for heavy metal adsorption and accumulation ability, and adsorption capacity is bigger, but its often the rate of adsorption is slower,
And there is special selectivity to certain heavy metal elements, it is difficult to accomplish the quick adsorption of detection device for multi metallic elements.
Algae is very strong for heavy metal adsorption and accumulation ability, and adsorption capacity is bigger, but its often the rate of adsorption is slower,
And there is special selectivity to certain heavy metal elements, it is difficult to accomplish the quick adsorption of detection device for multi metallic elements.
Summary of the invention
For overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of absorption efficiently, absorption is thorough
Quickly remove the compound algae preparation and its method of heavy metal in water removal.
In one aspect of the invention, a kind of compound algae preparation for quickly removing heavy metal in water removal, feature are provided
Be: the compound algae preparation include the fresh -laid egg white nucleus chlorella of 10-100 parts by weight, 10-100 parts by weight it is fresh
Water cotton green alga, zinc salt and pH adjusting agent.
In currently preferred aspect, the zinc salt is zinc chloride, zinc sulfate, zinc nitrate or other soluble Zns
Salt.
In currently preferred aspect, the pH adjusting agent is selected from quick lime, white lime, carbon dioxide, sulfuric acid and salt
Acid.
In currently preferred aspect, the weight ratio of the fresh -laid egg white nucleus chlorella and fresh water cotton green alga is 1:
2.5-3.5。
In currently preferred aspect, the compound algae preparation by 20 parts by weight fresh -laid egg white nucleus chlorella, 60
The fresh water cotton green alga of parts by weight, the zinc chloride of the parts by weight of the 0.25-0.5 in terms of the weight of Zn-ef ficiency and quick lime pH adjusting agent institute
Composition.
In terms of others of the invention, a kind of method for quickly removing heavy metal in water removal is also provided, it is characterised in that: described
Method the following steps are included:
(1) previously described compound algae preparation is added into the water body of 1,000,000 parts by weight, and the content for adjusting zinc salt makes water
The content of zinc salt is calculated as 0.25-0.5mg/L with Zn-ef ficiency in body；
(2) pH value for the water body for obtaining step 1 is adjusted between 6.5-7.0；
(3) water body for allowing step 2 to obtain is placed 2-4 days naturally under natural lighting, and pulls the algae in water out；Described
Water body is the eutrophic water body containing lead ion, copper ion.
In currently preferred aspect, in step (1), the content for adjusting zinc salt makes the content of zinc salt in water body with zinc
Element is calculated as 0.35mg/L.
In currently preferred aspect, in step (2), the pH value for the water body that step 1 is obtained is adjusted to 6.8.
In currently preferred aspect, in step (3), placed naturally under natural lighting 3 days.
In currently preferred aspect, in step (3), also it was stirred every 2-4 hours in natural placement process.
In currently preferred aspect, the water body is the eutrophic water body containing microcosmic salt, and phosphorus content is greater than
0.1mg/ cubic metres, nitrogen content is greater than 0.3mg/ cubic metres.
Compound algae preparation of the invention and method are by using fresh -laid egg white nucleus chlorella and fresh water cotton green alga
Combination, realizes the efficient absorption to mantoquita, lead salt；And inventor surprisingly has found, is added when in compound algae preparation
When zinc salt, the absorption of lead salt is more thorough.The compound algae preparation and method can be widely applied to wastewater treatment process, have wide
General application prospect.
Specific embodiment
Unless additionally illustrating, " chlorella pyrenoidosa " (Chlorella) is that the general natural disposition of Chlorophyta Chlorella is unicellular
Green alga.It is a kind of spherical unicellular fresh water algae, 3~8 microns of diameter, is one of life earliest on the earth, appears in more than 20
Before 100000000 years, gene does not change always, is a kind of efficient photosynthetic plant, with photoautotrophy growth and breeding, distributed pole is wide.Bead
Chlorophyll rich in, photosynthesis are very strong in frustule.Its proteins,vitamins,minerals rich in, food
Fiber, nucleic acid and chlorophyll etc. are the indispensable nutrients of institute that maintains and promote health.
Unless additionally illustrating, " water cotton green alga " (Spirogyra) Chlorophyta, engagement algae guiding principle, Shui Mian section, Spirogyra are planted
Object.Frond is the filamentous for the not branch being linked to be by columna shape cell.Since there is more pectic substance on frond surface, so
Stick-slip is quite felt when being touched with hand.Under the microscope, it is seen that have one to multiple ribbon chloroplaset in each cell, in the shape of a spiral around life
In cytoplasm square in abutting cell wall, there is a column pyrenoids on chloroplaset.There is a big vacuole in cell center.It is one thin
Karyon is located in a cytoplasm in vacuole center.Circumnuclear cytoplasm and surrounding are close between the cytoplasm of cell wall, have
A plurality of radial cytoplasmic filament is connected.
Embodiment 1
In the present embodiment, the sewage used is the sewage sample obtained from local stream, and dosage is 1000 kilograms, copper
Content is 0.74mg/L, and lead content 0.12mg/L, pH 4.7 belongs to the water body that heavy metal seriously pollutes.Discovery is measured simultaneously
Wherein Zn content is that is its Zn content is very low by 0.037mg/L().The sewage is fished for using 40 mesh sieve in advance, is obtained
To the water body of precipitation-free.And the phosphor in sewage content is 0.42mg/ cubic metres, and nitrogen content is 0.71mg/ cubic metres, is belonged to
In the sewage of serious eutrophication.
The sewage of the double centner is introduced into pre-set cement pit, is then followed the steps below:
(1) 20 grams of fresh -laid egg white nucleus chlorellas, 60 grams of fresh water cotton green algas are added into 1000 kilograms of water body, and adjust zinc salt
Content make the content of zinc salt in water body be calculated as 0.35 mg/L with Zn-ef ficiency；
(2) quick lime is used, the pH value for the water body that step 1 is obtained is adjusted to 6.8；
(3) water body for allowing step 2 to obtain is placed 3 days naturally under natural lighting, and pulls the algae in water out.
Embodiment 2
In the present embodiment, the sewage and embodiment 1 used is identical, then follows the steps below:
(1) 10 grams of fresh -laid egg white nucleus chlorellas, 100 grams of fresh water cotton green algas are added into 1000 kilograms of water body, and adjust zinc
The content of salt makes the content of zinc salt in water body be calculated as 0.5 mg/L with Zn-ef ficiency；
(2) quick lime is used, the pH value for the water body that step 1 is obtained is adjusted to 6.5；
(3) water body for allowing step 2 to obtain is placed 2 days naturally under natural lighting, and pulls the algae in water out.
Embodiment 3
In the present embodiment, the sewage and embodiment 1 used is identical, then follows the steps below:
(1) 100 grams of fresh -laid egg white nucleus chlorellas, 10 grams of fresh water cotton green algas are added into 1000 kilograms of water body, and adjust zinc
The content of salt makes the content of zinc salt in water body be calculated as 0.25 mg/L with Zn-ef ficiency；
(2) quick lime is used, the pH value for the water body that step 1 is obtained is adjusted to 6.5；
(3) water body for allowing step 2 to obtain is placed 2 days naturally under natural lighting, and pulls the algae in water out.
Embodiment 4
In the present embodiment, the sewage and embodiment 1 used is identical, then follows the steps below:
(1) 10 grams of fresh -laid egg white nucleus chlorellas, 25 grams of fresh water cotton green algas are added into 1000 kilograms of water body, and adjust zinc salt
Content make the content of zinc salt in water body be calculated as 0.25 mg/L with Zn-ef ficiency；
(2) quick lime is used, the pH value for the water body that step 1 is obtained is adjusted to 6.7；
(3) water body for allowing step 2 to obtain is placed 2 days naturally under natural lighting, and pulls the algae in water out.
Embodiment 5
In the present embodiment, the sewage and embodiment 1 used is identical, then follows the steps below:
(1) 20 grams of fresh -laid egg white nucleus chlorellas, 70 grams of fresh water cotton green algas are added into 1000 kilograms of water body, and adjust zinc salt
Content make the content of zinc salt in water body be calculated as 0.35 mg/L with Zn-ef ficiency；
(2) quick lime is used, the pH value for the water body that step 1 is obtained is adjusted to 7；
(3) water body for allowing step 2 to obtain is placed 3 days naturally under natural lighting, and pulls the algae in water out.Naturally it is putting
During setting, water body is stirred once every 3 hours.
Comparative example 1
It is in this comparative example with the difference of embodiment 1, only uses fresh -laid egg white nucleus chlorella, does not use water cotton green alga.Newly
The dosage of fresh egg white nucleus bead green alga is 80 grams.
Comparative example 2
It is in this comparative example with the difference of embodiment 1, only uses water cotton green alga, does not use fresh -laid egg white nucleus chlorella.Newly
The dosage of fresh water cotton green alga is 80 grams.
Comparative example 3
It is in this comparative example with the difference of embodiment 1, is added without zinc salt.
Comparative example 4
It is in this comparative example with the difference of embodiment 1, the adjusting without pH.
One, the comparative test of algae weight
In this test, after having recorded the algae sufficiently pulled out in water using the sieve of 40 mesh, the fresh algae pulled out
Weight.
Table 1: the weight of algae is recycled after cultivating in embodiment 1-5 and comparative example 1-4.
From the result of this test can be seen that substantially for 3 days incubation times will increase obtained fresh algae
Weight, but when perhaps there is no zinc salt when a kind of only algae or when not adjusting pH, the life of algae
Long level decreases.One skilled in the art will appreciate that the growth of algae is better, the ability of heavy metal element is adsorbed generally
It is stronger.
Two, content of beary metal is tested
In this test, the content of beary metal of each group test group and control group before and after the test is had recorded.
Table 2: the content of heavy metal ion after being cultivated in embodiment 1-5 and comparative example 1-4.
Unless additionally illustrating, the tenor in table 2 is the content of the mg/L calculated with metal.All metals contain
Amount is all carried out using atomic absorption spectrography (AAS).
It can be seen that, only adjusted simultaneously using combined algae preparation and zinc ion concentration from the data of table 2, and
In the case where carrying out pH value adjusting, the higher level removal of copper ion and lead ion can be realized.
Three, second adsorption is tested
In this test, the green alga mixture that embodiment 1-5 is obtained is as the mixture of green alga, according to the total of green alga mixture
The amount of weight, puts into new cesspool, and carry out zinc ion concentration adjusting and pH again according to the method for embodiment 1-5 respectively
It adjusts and places.Experiments have shown that the green alga mixture of secondary use is above 75% in Cu ion removal rate, wherein implementing
The green alga mixture of the secondary use of example 4 has reached 85.5% or more in copper ion removal rate.Experiments have shown that secondary use is green
Algae mixture has reached 65% or more in Pb ion removal rate, wherein 2 highest of embodiment, is 76.4%.
The experiment shows that the green alga mixture tested possesses the potentiality reused again.But it is not relative to
For green alga mixture through adsorbing heavy metal ion, the ability for adsorbing heavy metal ion is declined.
Claims (10)
1. a kind of compound algae preparation for quickly removing heavy metal in water removal, it is characterised in that: the compound algae preparation includes
The fresh -laid egg white nucleus chlorellas of 10-100 parts by weight, 10-100 parts by weight fresh water cotton green alga, zinc salt and pH adjusting agent.
2. a kind of compound algae preparation for quickly removing heavy metal in water removal according to claim 1, it is characterised in that: described
Zinc salt be zinc chloride, zinc sulfate, zinc nitrate or other soluble zinc salts.
3. a kind of compound algae preparation for quickly removing heavy metal in water removal according to claim 1, it is characterised in that: described
PH adjusting agent be selected from quick lime, white lime, carbon dioxide, sulfuric acid and hydrochloric acid.
4. a kind of compound algae preparation for quickly removing heavy metal in water removal described in claim 1, it is characterised in that: described is new
The weight ratio of fresh chlorella pyrenoidosa and fresh water cotton green alga is 1:2.5-3.5.
5. a kind of compound algae preparation for quickly removing heavy metal in water removal described in claim 1, it is characterised in that: described answers
Close fresh -laid egg white nucleus chlorella of the algae preparation by 20 parts by weight, the fresh water cotton green alga of 60 parts by weight, with the weight of Zn-ef ficiency
The zinc chloride and quick lime pH adjusting agent for counting 0.25-0.5 parts by weight are formed.
6. quickly to go the method for heavy metal in water removal using the compound algae preparation of any of claims 1-5,
Be characterized in that: the method the following steps are included:
(1) compound algae preparation of any of claims 1-5 is added into the water body of 1,000,000 parts by weight, and adjusts
The content of zinc salt makes the content of zinc salt in water body be calculated as 1.5-5.5 mg/L with Zn-ef ficiency；
(2) pH value for the water body for obtaining step 1 is adjusted between 6.5-7.0；
(3) water body for allowing step 2 to obtain is placed 2-4 days naturally under natural lighting, and pulls the algae in water out；Described
Water body is the eutrophic water body containing lead ion, copper ion.
7. the method according to claim 6 for quickly removing heavy metal in water removal, which is characterized in that in step (1), adjust
The content of zinc salt makes the content of zinc salt in water body be calculated as 0.35 mg/L with Zn-ef ficiency.
8. the method according to claim 6 for quickly removing heavy metal in water removal, which is characterized in that in step (2), will walk
The pH value of rapid 1 obtained water body is adjusted to 6.8.
9. the method according to claim 6 for quickly removing heavy metal in water removal, which is characterized in that in step (3), certainly
It is placed naturally 3 days under right illumination.
10. the method according to claim 6 for quickly removing heavy metal in water removal, which is characterized in that in step (3),
It was also stirred every 2-4 hours in natural placement process.
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| CN201811246489.5A CN109160612A (en) | 2018-10-25 | 2018-10-25 | A kind of compound algae preparation and its method quickly removing heavy metal in water removal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110357266A (en) * | 2019-07-15 | 2019-10-22 | 浙江海洋大学 | Utilize the method for heavy metal ion in sargassum thunbergii removal polluted-water |
-
2018
- 2018-10-25 CN CN201811246489.5A patent/CN109160612A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110357266A (en) * | 2019-07-15 | 2019-10-22 | 浙江海洋大学 | Utilize the method for heavy metal ion in sargassum thunbergii removal polluted-water |
| CN110357266B (en) * | 2019-07-15 | 2022-01-11 | 浙江海洋大学 | Method for removing heavy metal ions in polluted water body by using sargassum thunbergii |
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Application publication date: 20190108 |
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