CN106186244A - A kind of high efficiency, low cost removes the method for Microcystins in Water - Google Patents
A kind of high efficiency, low cost removes the method for Microcystins in Water Download PDFInfo
- Publication number
- CN106186244A CN106186244A CN201610688361.9A CN201610688361A CN106186244A CN 106186244 A CN106186244 A CN 106186244A CN 201610688361 A CN201610688361 A CN 201610688361A CN 106186244 A CN106186244 A CN 106186244A
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- China
- Prior art keywords
- water
- chitosan
- low cost
- microcystins
- cyclodextrin
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Classifications
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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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of method that high efficiency, low cost removes Microcystins in Water, comprise the following steps: be 50 100 μm by clay crushed after being dried to fineness, chitosan, methylated beta cyclodextrin mass concentration be 1% hydrochloric acid solution dissolve be configured to chitosan, the hydrochloric acid solution of methylated beta cyclodextrin, and mix to fully infiltrate with clay powder, obtain flocculant after drying；Above-mentioned prepared flocculant is joined in the water body containing Microcystin, and the pH value regulating water body is 7, stirring, stand until there being obvious flco to generate, and filter, the water body after filtering uses carbon fiber adsorption and catalytic combustion, and water volume flow rate is 10 15L/h, under conditions of the time of staying is 20 50min, process terminates rear water outlet；Low cost, environmental protection.
Description
Technical field:
The present invention relates to water body process field, be specifically related to a kind of high efficiency, low cost and remove Microcystins in Water
Method.
Background technology:
Frequently breaking out and consequent Algae toxins pollution etc. of harmful algal bloom, makes improvement algae pollution become Now Domestic
The a great problem that outer effort is explored.Control polluter to enter, locally meet an urgent need except algae and adjustment water ecological setting structure combine
The Comprehensive Control for the treatment of both the principal and secondary aspects of a disease except algae method, be the main path solving algae pollution problem.Although controlling polluter is one
Fundamental measure, but it is relatively slow to take effect, and generally requires 5 years, 10 years as long as.And mostly become in current China's rivers,lakes and seas nearshore waters
In the case of eutrophication, the burst of algae disaster is still and is difficult to avoid, and some the most sudden can cause weight
Big loss, therefore, it is necessary to study all kinds of comprehensive algae-removing methods and emergent algae removal technology.
Algae removal emergency measure includes multiple, and wherein clay mineral removes algae is the method relatively praised highly at present.Glutinous
Soil mineral origin is extensive, cheap, and will not produce pollution.But clay is when except algae, usage amount is relatively big, thus gives big face
Long-pending wawter bloom of administering brings material quantity and the excessive problem of sludge amount, limits its application in water processes.Accordingly, it would be desirable to it is right
Clay is modified, improve clay except algae efficiency.
Summary of the invention:
It is an object of the invention to provide a kind of method that high efficiency, low cost removes Microcystins in Water, the method is permissible
Effectively removing the Microcystin in water body, low cost, efficiency is high.
For achieving the above object, the present invention is by the following technical solutions:
A kind of high efficiency, low cost removes the method for Microcystins in Water, comprises the following steps:
(1) preparation of flocculant
Being 50-100 μm by clay crushed after being dried to fineness, chitosan, methyl-β-cyclodextrin mass concentration are
The hydrochloric acid solution of 1% dissolves the hydrochloric acid solution being configured to chitosan, methyl-β-cyclodextrin, and mixes to clay powder
Fully infiltration, obtains flocculant after drying；
(2) water body processes
The flocculant that step (1) prepares is joined in the water body containing Microcystin, and the pH value regulating water body is
7, stirring, stand until there being obvious flco to generate, and filter, the water body after filtering uses carbon fiber adsorption and catalytic combustion, water body stream
Speed is 10-15L/h, and under conditions of the time of staying is 20-50min, process terminates rear water outlet；
Wherein in step (1), described clay, chitosan, the mass ratio of methyl-β-cyclodextrin are 1:(5-20): (3-
6)。
Preferred as technique scheme, in step (1), described clay, chitosan, the matter of methyl-β-cyclodextrin
Amount ratio is 1:15:5.
Preferred as technique scheme, in step (1), described clay is rotten yellow soil, the sub-yellow soil of iron, JIANGSHI
Yellow soil, JIANGSHI yellow ground earth, ash tide sand earth, acid purple soil, yellowish complexion earth, calcareous purple soil, thick-layer cobble yellow mud
One or more mixing in soil.
Preferred as technique scheme, described clay is rotten yellow soil, the mixture of the sub-yellow soil of iron, the two matter
Amount ratio is (2-5): 1.
Preferred as technique scheme, in step (1), described chitosan, the hydrochloric acid solution of methyl-β-cyclodextrin
In, chitosan, methyl-β-cyclodextrin, mass concentration be the mass ratio of the hydrochloric acid solution of 1% be (5-20): (3-6): 40.
Preferred as technique scheme, in step (2), the interpolation concentration of flocculant is 1-1.5g/L.
Preferred as technique scheme, in step (2), a diameter of 3-10 μm of described NACF, average hole
Footpath is 1-5nm.
The method have the advantages that
The present invention uses chitosan, methyl-β-cyclodextrin to clay modified prepared flocculant, and it can be quickly by water body
In Microcystin remove, it is achieved to cyanophyceae spray outburst emergency processing, removal effect is good, instant effect；
And the present invention uses that homemade flocculant and activated carbon are compound to be processed water body, the removal of Microcystin
Rate is greatly enhanced, and the method is simple to operate, nontoxic, low cost.
Detailed description of the invention:
In order to be better understood from the present invention, below by embodiment, the present invention is further described, and embodiment is served only for solving
Release the present invention, the present invention will not be constituted any restriction.
Embodiment 1
A kind of high efficiency, low cost removes the method for Microcystins in Water, comprises the following steps:
(1) preparation of flocculant
It is 50-100 μm by rotten yellow soil crushed after being dried to fineness, chitosan, methyl-β-cyclodextrin mass concentration
Be 1% hydrochloric acid solution dissolve and be configured to the hydrochloric acid solution of chitosan, methyl-β-cyclodextrin, and with clay powder mix and blend
To fully infiltration, obtain flocculant after drying；Wherein, described chitosan, methyl-β-cyclodextrin hydrochloric acid solution in, shell gather
Sugar, methyl-β-cyclodextrin, mass concentration be the mass ratio of the hydrochloric acid solution of 1% be 5:3:40；
(2) water body processes
The flocculant that step (1) prepares is joined in the water body containing Microcystin with the concentration of 1g/L, and regulates
The pH value of water body is 7, stirring, stands until there being obvious flco to generate, and filters, and the water body after filtering uses NACF
Absorption, water volume flow rate is 10L/h, and under conditions of the time of staying is 20min, process terminates rear water outlet；
Wherein in step (1), described rotten yellow soil, chitosan, the mass ratio of methyl-β-cyclodextrin are 1:5:3.
After water body processes, turbidity removal rate is 96.89%, and the clearance of chlorophyll a is 97.15%.
Embodiment 2
A kind of high efficiency, low cost removes the method for Microcystins in Water, comprises the following steps:
(1) preparation of flocculant
It is 50-100 μm by sub-for iron yellow soil crushed after being dried to fineness, chitosan, methyl-β-cyclodextrin quality
Concentration be 1% hydrochloric acid solution dissolve and be configured to the hydrochloric acid solution of chitosan, methyl-β-cyclodextrin, and mix with clay powder
Stir to fully infiltration, obtain flocculant after drying；Wherein, described chitosan, methyl-β-cyclodextrin hydrochloric acid solution in,
Chitosan, methyl-β-cyclodextrin, mass concentration be the mass ratio of the hydrochloric acid solution of 1% be 20:6:40；
(2) water body processes
The flocculant that step (1) prepares is joined in the water body containing Microcystin with the concentration of 1.5g/L, and adjusts
The pH value of water saving body is 7, and stirring stands until there being obvious flco to generate, and filters, and the water body after filtering uses active carbon fibre
Dimension absorption, water volume flow rate is 15L/h, and under conditions of the time of staying is 50min, process terminates rear water outlet；
Wherein in step (1), the sub-yellow soil of described iron, chitosan, the mass ratio of methyl-β-cyclodextrin are 1:20:
6。
After water body processes, turbidity removal rate is 99.12%, and the clearance of chlorophyll a is 98.75%.
Embodiment 3
A kind of high efficiency, low cost removes the method for Microcystins in Water, comprises the following steps:
(1) preparation of flocculant
Being 50-100 μm by JIANGSHI yellow soil crushed after being dried to fineness, chitosan, methyl-β-cyclodextrin quality are dense
Degree be 1% hydrochloric acid solution dissolve and be configured to the hydrochloric acid solution of chitosan, methyl-β-cyclodextrin, and mix with clay powder and stir
Mix to fully infiltration, obtain flocculant after drying；Wherein, described chitosan, methyl-β-cyclodextrin hydrochloric acid solution in, shell
Polysaccharide, methyl-β-cyclodextrin, mass concentration be the mass ratio of the hydrochloric acid solution of 1% be 9:4:40；
(2) water body processes
The flocculant that step (1) prepares is joined in the water body containing Microcystin with the concentration of 1.1g/L, and adjusts
The pH value of water saving body is 7, and stirring stands until there being obvious flco to generate, and filters, and the water body after filtering uses active carbon fibre
Dimension absorption, water volume flow rate is 11L/h, and under conditions of the time of staying is 30min, process terminates rear water outlet；
Wherein in step (1), described JIANGSHI yellow soil, chitosan, the mass ratio of methyl-β-cyclodextrin are 1:9:4.
After water body processes, turbidity removal rate is 97.05%, and the clearance of chlorophyll a is 98.22%.
Embodiment 4
A kind of high efficiency, low cost removes the method for Microcystins in Water, comprises the following steps:
(1) preparation of flocculant
It is 50-100 μm by rotten yellow soil, iron yellow soil crushed after being dried to fineness, the chitosan ,-β that methylates-ring
Dextrin mass concentration be 1% hydrochloric acid solution dissolve and be configured to the hydrochloric acid solution of chitosan, methyl-β-cyclodextrin, and with
Clay powder mixes to fully infiltrate, and obtains flocculant after drying；Wherein, the salt of described chitosan, methyl-β-cyclodextrin
In acid solution, chitosan, methyl-β-cyclodextrin, mass concentration be the mass ratio of the hydrochloric acid solution of 1% be 13:4.5:40；
(2) water body processes
The flocculant that step (1) prepares is joined in the water body containing Microcystin with the concentration of 1.2g/L, and adjusts
The pH value of water saving body is 7, and stirring stands until there being obvious flco to generate, and filters, and the water body after filtering uses active carbon fibre
Dimension absorption, water volume flow rate is 12L/h, and under conditions of the time of staying is 30min, process terminates rear water outlet；
Wherein in step (1), described rotten yellow soil, the mixing of the sub-yellow soil of iron, chitosan, methyl-β-cyclodextrin
Mass ratio be 1:13:4.5.
After water body processes, turbidity removal rate is 98.56%, and the clearance of chlorophyll a is 98.88%.
Embodiment 5
A kind of high efficiency, low cost removes the method for Microcystins in Water, comprises the following steps:
(1) preparation of flocculant
It is 50-100 μm by calcareous purple soil crushed after being dried to fineness, chitosan, methyl-β-cyclodextrin quality
Concentration be 1% hydrochloric acid solution dissolve and be configured to the hydrochloric acid solution of chitosan, methyl-β-cyclodextrin, and mix with clay powder
Stir to fully infiltration, obtain flocculant after drying；Wherein, described chitosan, methyl-β-cyclodextrin hydrochloric acid solution in,
Chitosan, methyl-β-cyclodextrin, mass concentration be the mass ratio of the hydrochloric acid solution of 1% be 17:5:40；
(2) water body processes
The flocculant that step (1) prepares is joined in the water body containing Microcystin with the concentration of 1.3g/L, and adjusts
The pH value of water saving body is 7, and stirring stands until there being obvious flco to generate, and filters, and the water body after filtering uses active carbon fibre
Dimension absorption, water volume flow rate is 14L/h, and under conditions of the time of staying is 45min, process terminates rear water outlet；
Wherein in step (1), described calcareous purple soil, chitosan, the mass ratio of methyl-β-cyclodextrin are 1:17:
5。
After water body processes, turbidity removal rate is 99.05%, and the clearance of chlorophyll a is 98.39%.
Claims (7)
1. the method that a high efficiency, low cost removes Microcystins in Water, it is characterised in that comprise the following steps:
(1) preparation of flocculant
Being 50-100 μm by clay crushed after being dried to fineness, chitosan, methyl-β-cyclodextrin mass concentration are 1%
Hydrochloric acid solution dissolves the hydrochloric acid solution being configured to chitosan, methyl-β-cyclodextrin, and mixes to fully soak with clay powder
Profit, obtains flocculant after drying；
(2) water body processes
The flocculant that step (1) prepares is joined in the water body containing Microcystin, and the pH value regulating water body is 7, stirs
Mixing, stand until there being obvious flco to generate, and filter, the water body after filtering uses carbon fiber adsorption and catalytic combustion, and water volume flow rate is
10-15L/h, under conditions of the time of staying is 20-50min, process terminates rear water outlet；
Wherein in step (1), described clay, chitosan, the mass ratio of methyl-β-cyclodextrin are 1:(5-20): (3-6).
A kind of high efficiency, low cost the most as claimed in claim 1 removes the method for Microcystins in Water, it is characterised in that: step
Suddenly, in (1), described clay, chitosan, the mass ratio of methyl-β-cyclodextrin are 1:15:5.
A kind of high efficiency, low cost the most as claimed in claim 1 removes the method for Microcystins in Water, it is characterised in that: step
Suddenly, in (1), described clay is rotten yellow soil, the sub-yellow soil of iron, JIANGSHI yellow soil, JIANGSHI yellow ground earth, ash tide sand earth, acid
Property purple soil, yellowish complexion earth, calcareous purple soil, one or more mixing in thick-layer yellow pebble soil.
A kind of high efficiency, low cost the most as claimed in claim 3 removes the method for Microcystins in Water, it is characterised in that: institute
Stating clay is rotten yellow soil, the mixture of the sub-yellow soil of iron, and the two mass ratio is (2-5): 1.
A kind of high efficiency, low cost the most as claimed in claim 1 removes the method for Microcystins in Water, it is characterised in that: step
Suddenly in (1), described chitosan, methyl-β-cyclodextrin hydrochloric acid solution in, chitosan, methyl-β-cyclodextrin, quality are dense
Degree be the mass ratio of the hydrochloric acid solution of 1% be (5-20): (3-6): 40.
A kind of high efficiency, low cost the most as claimed in claim 1 removes the method for Microcystins in Water, it is characterised in that: step
Suddenly, in (2), the interpolation concentration of flocculant is 1-1.5g/L.
A kind of high efficiency, low cost the most as claimed in claim 1 removes the method for Microcystins in Water, it is characterised in that: step
Suddenly, in (2), a diameter of 3-10 μm of described NACF, average pore size is 1-5nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610688361.9A CN106186244A (en) | 2016-08-18 | 2016-08-18 | A kind of high efficiency, low cost removes the method for Microcystins in Water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610688361.9A CN106186244A (en) | 2016-08-18 | 2016-08-18 | A kind of high efficiency, low cost removes the method for Microcystins in Water |
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| CN106186244A true CN106186244A (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610688361.9A Pending CN106186244A (en) | 2016-08-18 | 2016-08-18 | A kind of high efficiency, low cost removes the method for Microcystins in Water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847610A (en) * | 2019-04-29 | 2020-10-30 | 全程兴业股份有限公司 | Biodegradable flocculant and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585614A (en) * | 2009-06-17 | 2009-11-25 | 江南大学 | The removal purifying method of Microcystin in a kind of tap water |
| CN102249386A (en) * | 2011-07-11 | 2011-11-23 | 三峡大学 | Preparation method of modified kaoline alga flocculating agent and application thereof |
| CN104530437A (en) * | 2014-12-02 | 2015-04-22 | 天津工业大学 | Preparation method of cyclodextrin grafted chitosan polymer with water pollutant separating property |
| CN105236507A (en) * | 2015-09-15 | 2016-01-13 | 湖南大学 | Method for removing hexavalent chromium in wastewater by using beta-cyclodextrin chitosan and walnut shell biochar compounded adsorbent |
-
2016
- 2016-08-18 CN CN201610688361.9A patent/CN106186244A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585614A (en) * | 2009-06-17 | 2009-11-25 | 江南大学 | The removal purifying method of Microcystin in a kind of tap water |
| CN102249386A (en) * | 2011-07-11 | 2011-11-23 | 三峡大学 | Preparation method of modified kaoline alga flocculating agent and application thereof |
| CN104530437A (en) * | 2014-12-02 | 2015-04-22 | 天津工业大学 | Preparation method of cyclodextrin grafted chitosan polymer with water pollutant separating property |
| CN105236507A (en) * | 2015-09-15 | 2016-01-13 | 湖南大学 | Method for removing hexavalent chromium in wastewater by using beta-cyclodextrin chitosan and walnut shell biochar compounded adsorbent |
Non-Patent Citations (1)
| Title |
|---|
| 刘恋: "壳聚糖改性粘土去除城市湖泊中藻类的研究", 《环境科学与管理》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847610A (en) * | 2019-04-29 | 2020-10-30 | 全程兴业股份有限公司 | Biodegradable flocculant and preparation method thereof |
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Application publication date: 20161207 |
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