CN110054357A - The comprehensive processing method of heavy metal and organic pollution water body - Google Patents
The comprehensive processing method of heavy metal and organic pollution water body Download PDFInfo
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- CN110054357A CN110054357A CN201910326724.8A CN201910326724A CN110054357A CN 110054357 A CN110054357 A CN 110054357A CN 201910326724 A CN201910326724 A CN 201910326724A CN 110054357 A CN110054357 A CN 110054357A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic 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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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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)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The comprehensive processing method of heavy metal and organic pollution water body provided by the invention is to provide for the comprehensive processing method of a kind of at low cost, easy to operate, high treating effect heavy metal and organic pollution water body, and the present invention is the following steps are included: measurement water body contains heavy metal and content of organics；The amount of ethylenediamine tetra-acetic acid, waste beer yeast bacterium, zeolite powder, polymer alumina is determined according to measured quantity；Quick lime, ethylenediamine tetra-acetic acid are successively sprayed again, and waste beer yeast bacterium mixes zeolite powder, polymer alumina, and final heavy metal and organic matter bubble adhesion polymerize floating show bubble, struck off froth bed with Slag Scraping Device, burns in the fishing of condensation product net.The present invention chelates heavy metal ion from water body using chemical action and comes out, and organic matter complex coacervation comes out, and is then adsorbed by physics and microbial process, bubble adhesion polymerization is floated, it is fished out using mechanically-laid web to burn, achievees the purpose that water body removes heavy metal and organic matter, method simple practical.
Description
Technical field
The invention belongs to polluted water purification technical fields, and in particular to one kind is used for heavy metal and organic pollution water body
Comprehensive processing method.
Background technique
Heavy metal in water and organic pollution (Cd metal pollution ofthe water) refer to since the mankind are living
Dynamic, contents of heavy metal elements and content of organics in water body are more than background value too high levels, are referred to as heavy metal and organic matter
Pollution.
Heavy metal refers to the metal that specific gravity is equal to or more than 5.0, such as Fe, Mn, Zn, Cd, Hg, Ni, Co.Several heavy metal species
The characteristic of pollution:
1, cadmium (Cd)
Cadmium (Cd) is a kind of argenteous rare metal, soft, anticorrosive, wear-resisting rich in ductility, slightly hot easy
Volatilization.It does not find individual cadmium mine now, is often found in lead zinc, lead bronze zinc ore.Cadmium be widely used in plating, automobile and aviation,
The industries such as pigment, paint, printing.It is exceeded that the multiple rice produced of China are found cadmium, is that irrigation water heavy metals exceeding standard is made mostly
At public hazards, the appearance of " cadmium rice crisis " beats the alarm bell of water pollution again.Since cadmium has a wide range of application, consumption pattern is more
Sample increases the chance of environmental pollution, and cadmium has caused common concern to the pollution of environment at present, and control cadmium pollution has become
The synthtic price index of the whole society.
2, copper (Cu)
Copper (Cu) is nutrient necessary to biology, and suitable copper is all beneficial, but excessive copper to people and animals and plants
It causes damages to the growth and development of biology, serious destroy is generated to its surrounding enviroment.In addition, with the quick hair of industrial and agricultural production
Exhibition, the purposes of copper is more and more extensive, and dosage is continuously increased, and cupric pollutant effluents discharges more and more, the pollution to water environment
Gradually display.Therefore, in recent years, the attention of people is caused to the research of Water Environment System Cu-W ore deposit and improvement.
3, lead (Pb)
The solubility of lead (Pb) in water is low and not easily shifted, but since the mankind are to naturally continually developing and destroying, adds
Upper industrial expansion causes the global lead contamination got worse.Lead has latency and long-term to the toxic action of human body
The characteristics of property.Due to the continuous generation of lead poisoning event, the research in relation to lead contamination and lead poisoning evil is increasingly learned both at home and abroad
The attention of person.
4, mercury (Hg)
Mercury (Hg) can enter water environment by different approaches, and the Hg in water is by complicated physics, chemical reaction, big portion
Divide and be trapped in water environment with various forms, while Hg accumulates and enter food chain circulation in crop edible part, it is strong to human body
Health constitutes a threat to.
Organic matter refers to that carbohydrate, protein, fat contained in sanitary sewage and certain industrial wastewaters etc. is organic
Compound is finally decomposed to simple inorganic substances, carbon dioxide and water etc. under microbial action.These organic matters are decomposing
It needs to consume a large amount of oxygen in the process, therefore belongs to oxygen consumption pollutant.Oxygen consumption organic pollutant is that water body is made to generate black smelly main original
One of because.
For the polluted-water that heavy metal and organic pollution are constituted, a variety of method comprehensive treatments, current this field are needed
Technology develops a variety of materials very fast and device and method emerge one after another, and has Mechanical Method, spray process, chemical method, bioanalysis, ecology
Method, potentiometry etc..But it is very simple in terms of existing processing scheme application technology at present, it is only to work as with a kind of technology or two kinds of technologies
The defect and deficiency of preceding patented technology.
Summary of the invention
The technical issues of present invention is to solve single processing method in the prior art, poor processing effect, and provide
A kind of comprehensive processing method of heavy metal and organic pollution water body at low cost, easy to operate, high treating effect, this method are answered
With machinery, a variety of method comprehensive treatments such as chemistry, microorganism, physics, to reach excellent technical effect.
The present invention provides the comprehensive processing methods of a heavy metal species and organic pollution water body, include according to sequencing
Following steps:
(1) content of heavy metal is measured to calculate the dosage of ethylenediamine tetra-acetic acid and weigh the ethylenediamine of the dosage
Tetraacethyl is spare；
(2) quick lime dosage is calculated according to the total amount of polluted-water and weigh the quick lime of the dosage, quick lime is uniform
It splashes on polluted-water surface, strong stirring is carried out to mixing to polluted-water using turbine, is substantially dissolved in quick lime
In polluted-water；
(3) ethylenediamine tetra-acetic acid sodium hydroxide solution load weighted in step (1) is dissolved and is sprayed at polluted-water
In；
(4) COD, BOD content in polluted-water are measured, the content of waste beer yeast bacterium and zeolite powder is calculated and claims respectively
Waste beer yeast bacterium and the zeolite powder for taking each dosage stir and evenly mix load weighted waste beer yeast bacterium with zeolite powder in proportion,
It is spilled into polluted-water and strong stirring is carried out to mixing to polluted-water using turbine；
(5) polymer alumina dosage is calculated according to the SS of polluted-water, turbidity and weigh the polymer alumina of the dosage,
It is spilled into after polymer alumina is dissolved with water in polluted-water and strong stirring is carried out to mixing to polluted-water using turbine；
(6) pollutant in polluted-water floats with bubble adhesion polymerization forms foam, is scraped froth bed with Slag Scraping Device
Except net picks up burning.
Preferably, in step (1), the measurement of content of beary metal is measured using atomic absorption spectrophotometer, institute
The dosage for stating ethylenediamine tetra-acetic acid is 3 times of heavy metal gross mass in polluted-water.
In any of the above-described scheme preferably, the dosage of quick lime is 100g/m3 in the step (2).
In any of the above-described scheme preferably, in step (3), the sodium hydroxide that dissolution ethylenediamine tetra-acetic acid is selected is
10% sodium hydroxide, the amount of the edta solution of addition are 100mL/m3.
In any of the above-described scheme preferably, in step (4), the particle size of the zeolite powder 80-100 mesh it
Between, the ratio of the waste yeast bacterium and zeolite powder mixing is 1:2, and the amount being added after being determined according to COD, BOD content is 30--
50g/m3。
In any of the above-described scheme preferably, in step (5), the additional amount of polymer alumina according to polluted-water not
Depending on turbidity and SS, polluted-water turbidity is 10-20g/m3 in 100-500mg/L, the additional amount of the polymer alumina,
The polymer alumina is using being preceding diluted with water 50 times.
The comprehensive processing method difference from prior art of heavy metal and organic pollution water body of the present invention is: this Shen
Heavy metal chelating and organic matter are complexed using machinery, chemistry, microorganism, physical synthesis effect in technical solution please, adsorbed,
Polymerization suspended particulate and bubble adhesion are separated from water body, method simple practical.
Specific embodiment
In order to be further understood that summary of the invention of the invention, the present invention is elaborated below in conjunction with specific embodiment.
Embodiment 1
The heavy metal of the present embodiment and the comprehensive processing method of organic pollution water body sequentially include the following steps:
Using the content of heavy metal in atomic absorption spectrophotometer measurement object polluted-water, to determine ethylenediamine tetra-acetic acid
(EDTA) dosage determines quick lime dosage, the dosage of sodium hydroxide according to the total amount of heavy metal and organic pollution water body, surveys
Determine COD, BOD, content, determine the dosage of waste beer yeast bacterium and zeolite powder, is determined according to the turbidity and SS of polluted-water poly-
Close aluminium oxide dosage；
(2) dosage of ethylenediamine tetra-acetic acid is 3 times of heavy metal gross mass in polluted-water；
(3) dosage of quick lime is 100g/m3Polluted-water uniformly splashes quick lime in polluted-water surface, impeller
Machine strong stirring is to being dissolved into water；
(3) contaminant water is then sprayed into the solution of 10%NaOH dissolution ethylenediamine tetra-acetic acid and by way of sprinkling again
In body, the dosage of the sodium hydroxide solution of ethylenediamine tetra-acetic acid is 10%NaOH100mL/m3Polluted-water；
(4) waste beer yeast bacterium and zeolite powder (80-100 mesh) are stirred and evenly mixed in the ratio of 1:2, by waste beer yeast
Bacterium and zeolite powder mixture 30--50g/m3It is added in polluted-water, turbine strong stirring mixes；
(5) general polluted-water turbidity is in 100-500mg/L, according to 10-20g/m3The amount of polymer alumina is added to
In polluted-water, polymer alumina is opened turbine strong stirring and is mixed using being preceding diluted with water 50 times after addition；
(6) ethylenediamine tetra-acetic acid chelating heavy metal ion is soluble in water, waste yeast bacterium and zeolite be spilled into the water adsorb it is organic
Suspended matter complexing, sprays polymer alumina purifying water body, and bubble adhesion polymerize from water body and floats therewith, with Slag Scraping Device by froth bed
It strikes off net and picks up burning, water quality is made to reach agricultural irrigation water quality standard.
The waste beer yeast bacterium that the present invention selects: saccharomyces cerevisiae is common typical top fermentation ferment in Beer Brewage
Mother, thallus vitamin, protein content are high, can also be from wherein extracting cromoci, nucleic acid, glutathione, thromboplastinum, auxiliary
Enzyme A and atriphos etc., brewer's yeast contain biotin, pantothenic acid, thiamine, pyridoxol and inositol, contain complete amino acid
Group is the best source for supplementing good protein.The mostly different product of saccharomyces cerevisiae (Sac-charomyces cerevisiae)
Kind, cellular morphology is identical as other culture yeasts, is subsphaeroidal ellipsoid, different from wild yeasts, waste beer yeast bacterium is
Dead brewer's yeast mycelium.
It is using chemical action that sprinkling ethylenediamine tetra-acetic acid chelating heavy metal ion is molten that above-described embodiment shows the present invention
Yu Shuizhong can be removed just using heavy metal cations such as the removal of EDTA chelating agent Cu, Ni, Cd, Zn with the EDTA of 0.01mol/L
Beginning concentration is the heavy metal cation 80% of 100-300mg/kg, when the amount of EDTA is more than heavy metal cation exchange capacity in water
It can significantly promote the chelation with heavy metal ion.Using the deposit of the complexing dissolution metal surface of EDTA, suitable
Under conditions of, primitive Y is complexed in EDTA4-Promote the dissolution of deposit with complexing of metal ion.If cadmium is mainly with EDTA network
Close cadmium ion CdY-2Form exists, and ferriferous oxide releases the OH of respective numbers during being dissolved by complexing-(such as Fe3O4+
4H2O→2Fe3++Fe2++8OH-), cuprous oxide and copper oxide can occur to react as follows: Cu2O+2H++2EDTA→2Cu+EDTA+
H2O、2Cu+(EDTA)→Cu+Cu2+(EDTA)+EDTA、CuO+2H++EDTA→Cu2+(EDTA)+H2O, with the dissolution of deposit,
PH value increases automatically.It, can according to the size of metal ion and EDTA complex compound equilibrium constant under the conditions of certain pH value formed
To determine that stable complex compound can be generated with this condition.
Physics and microbiological comprehensive effect waste yeast bacterium and zeolite are spilled into the water and adsorb heavy metal ion sequestrant and organic
Suspended matter is complexed, zeolite has the performances such as adsorptivity, ion exchangeable, catalysis and acidproof heat-proof, due to the porosity silicon of zeolite
Hydrochlorate property has a certain amount of air in aperture, and minute bubbles are easy to be formed on its corner.Zeolite has much due to inside
Aperture, uniform tubulose duct and the very big hole of internal surface area, thus there is unique absorption, screening, exchange zwitterion
And catalytic performance.It can absorb ammoniacal nitrogen in water, organic matter and heavy metal ion, can be effectively reduced water-bed hydrogen sulfide poison
Property, pH value is adjusted, oxygen in water is increased, waste beer yeast bacterium is cooked the efficiency of adsorbent absorption cadmium up to 98%, and sprinkling polymerize
Aluminium oxide purifying water body, bubble adhesion polymerization floating forms foam, the original of suspended particulate and bubble adhesion to water pollutant therewith
Reason: can suspended particulate depend primarily on the property of particle surface with bubble adhesion in water.Particle surface is easily readily wetted by water, this
Grain belongs to hydrophily；It is such as not easy to be readily wetted by water, belongs to hydrophobicity.What hydrophily was formed when can be in contact with gas, liquid, solid three with hydrophobicity
Contact angle size differentiates, when gas, liquid, solid three are in contact, solid, liquid interfacial tension line is gentle, between light-liquid interfacial tension line
Angle is indicated with θ.If θ < 90 ° are hydrophilic particle, it is not easy to bubble adhesion；θ > 90 ° are hydrophobic particle, and it is viscous to be easy to bubble
It is attached.When gas, liquid, solid are in contact, what three interfacial tensions always balanced.The wet contact angle (θ) of particle is with water in water
The difference of surface tension and change.The surface tension for increasing water, can be such that contact angle increases, and be conducive to gas, burl closes.With scraping
Froth bed is struck off net and picks up burning by slag machine.Achieve the purpose that water body removes heavy metal and organic matter.Method simple practical.
It will be apparent to those skilled in the art that the comprehensive processing method packet of heavy metal and organic pollution water body of the invention
Include the summary of the invention and specific embodiment part of aforementioned present invention specification, as space is limited and for keep specification concise without
Each scheme that these combinations are constituted is described one by one.All within the spirits and principles of the present invention, any modification for being made, equivalent
Replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. the comprehensive processing method of a heavy metal species and organic pollution water body, according to sequencing the following steps are included:
(1) content of heavy metal is measured to calculate the dosage of ethylenediamine tetra-acetic acid and weigh the ethylenediamine tetrem of the dosage
Acid is spare；
(2) quick lime dosage being calculated according to the total amount of polluted-water and weighing the quick lime of the dosage, quick lime is uniformly splashed
On polluted-water surface, polluted-water is stirred, is substantially dissolved in quick lime in polluted-water；
(3) ethylenediamine tetra-acetic acid sodium hydroxide solution load weighted in step (1) is dissolved and is sprayed in polluted-water；
(4) COD, BOD content in polluted-water are measured, the content of waste beer yeast bacterium and zeolite powder is calculated and is weighed respectively is each
Load weighted waste beer yeast bacterium is stirred and evenly mixed in proportion with zeolite powder, is spilled by the waste beer yeast bacterium of dosage and zeolite powder
In polluted-water and to polluted-water and it is stirred；
(5) polymer alumina dosage is calculated according to the SS of polluted-water, turbidity and weigh the polymer alumina of the dosage, will gather
It closes and is spilled into polluted-water and is stirred after aluminium oxide is dissolved with water；
(6) pollutant in polluted-water floats with bubble adhesion polymerization forms foam, and froth bed is struck off net with Slag Scraping Device
Pick up burning.
2. the comprehensive processing method of heavy metal according to claim 1 and organic pollution water body, which is characterized in that step
(1) in, the measurement of content of beary metal is measured using atomic absorption spectrophotometer, and the dosage of the ethylenediamine tetra-acetic acid is
3 times of heavy metal gross mass in polluted-water.
3. the comprehensive processing method of heavy metal according to claim 1 and organic pollution water body, which is characterized in that described
The dosage of quick lime is 100g/m in step (2)3。
4. the comprehensive processing method of heavy metal according to claim 1 and organic pollution water body, which is characterized in that step
(3) in, the sodium hydroxide that the sodium hydroxide that dissolution ethylenediamine tetra-acetic acid is selected is 10%, the edta solution of addition
Amount is 100mL/m3。
5. the comprehensive processing method of heavy metal according to claim 1 and organic pollution water body, which is characterized in that step
(4) in, for the particle size of the zeolite powder between 80-100 mesh, the ratio of the waste yeast bacterium and zeolite powder mixing is 1:
2, the amount being added after being determined according to COD, BOD content is 30--50g/m3。
6. the comprehensive processing method of heavy metal according to claim 1 and organic pollution water body, which is characterized in that step
(5) in, the additional amount of polymer alumina is depending on the different turbidities and SS of polluted-water, and polluted-water turbidity is in 100-
500mg/L, the additional amount of the polymer alumina are 10-20g/m3, the polymer alumina is using being preceding diluted with water 50 times.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5643000B2 (en) * | 1978-05-31 | 1981-10-08 | ||
| CN101264966A (en) * | 2008-04-18 | 2008-09-17 | 东北大学 | Method for removing cadmium ion from waste water by waste beer yeast absorption- deposition |
| WO2009053972A1 (en) * | 2007-10-22 | 2009-04-30 | Toxsorb Ltd | Modified activated carbon as adsorbent for anionic and cationic inorganic pollutants |
| CN105152403A (en) * | 2015-09-15 | 2015-12-16 | 江苏锦宇环境工程有限公司 | Treatment method of electroplating wastewater |
| CN105858969A (en) * | 2016-06-07 | 2016-08-17 | 韶关市雅鲁环保实业有限公司 | Wastewater treatment process of iron-copper-sulfur polymetallic mine slurry detention reservoir |
-
2019
- 2019-04-23 CN CN201910326724.8A patent/CN110054357A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5643000B2 (en) * | 1978-05-31 | 1981-10-08 | ||
| WO2009053972A1 (en) * | 2007-10-22 | 2009-04-30 | Toxsorb Ltd | Modified activated carbon as adsorbent for anionic and cationic inorganic pollutants |
| CN101264966A (en) * | 2008-04-18 | 2008-09-17 | 东北大学 | Method for removing cadmium ion from waste water by waste beer yeast absorption- deposition |
| CN105152403A (en) * | 2015-09-15 | 2015-12-16 | 江苏锦宇环境工程有限公司 | Treatment method of electroplating wastewater |
| CN105858969A (en) * | 2016-06-07 | 2016-08-17 | 韶关市雅鲁环保实业有限公司 | Wastewater treatment process of iron-copper-sulfur polymetallic mine slurry detention reservoir |
Non-Patent Citations (1)
| Title |
|---|
| 李旭东，杨芸: "《废水处理技术及工程应用》", 30 June 2003 * |
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Application publication date: 20190726 |