CN105668956B - A kind of river bottom mud heavy metal administering method - Google Patents
A kind of river bottom mud heavy metal administering method Download PDFInfo
- Publication number
- CN105668956B CN105668956B CN201510974313.1A CN201510974313A CN105668956B CN 105668956 B CN105668956 B CN 105668956B CN 201510974313 A CN201510974313 A CN 201510974313A CN 105668956 B CN105668956 B CN 105668956B
- Authority
- CN
- China
- Prior art keywords
- heavy metal
- river
- water
- cofferdam
- heavy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
- Y02A20/402—River restoration
Abstract
The invention discloses a kind of river bottom mud heavy metal administering method, this method is after cofferdam mode being taken to surround by heavy metal pollution river, to stir river bottom mud in cofferdam by mixing plant, while the activating agent for promoting heavy metal dissolution is added in water into cofferdam；Bed mud is sufficiently mixed under stirring with water, and the heavy metal in bed mud is promoted to dissolve in water, is settled, and after aqueous solution of the upper layer containing heavy metal passes through heavy metals removal equipment heavy-metal ion removal, is returned in cofferdam；This method can effectively reduce or recycle river bottom mud content of beary metal without destroying the original ecosystem in river and riverbed safety, and project amount it is low, it is at low cost, do not cause secondary pollution, be conducive to promote the use of.
Description
Technical field
The present invention relates to a kind of river bottom mud heavy metal administering methods, belong to river Heavy Metal Pollution Control technical field.
Background technique
River bottom mud heavy metal contaminants will affect water quality of river, and destroy the benthic ecosystem.Currently, domestic
The outer method for administering river bottom mud heavy metal is broadly divided into improvement method and dystopy in situ and administers method.
Improvement method in situ is primarily referred to as the agitation minimized to river bottom mud and directlys adopt chemosetting, elution, life
The methods of object enrichment is come the method that reduces river bottom mud heavy metal contaminants.
Dystopy improvement is handled again by physico-chemical process row after excavating contaminated bed mud.Dystopy administers river
Heavy Metal Pollution in Sediments object mainly includes stabilizing solidification, chemical leaching and bioanalysis.Solidification method is stabilized mainly to pass through surely
Fixedization solidifies the Leaching for reducing heavy metal in river bottom mud, and the final disposal of bed mud is carried out using the methods of landfill；Change
It learns elution to be primarily referred to as selecting specific eluent, heavy metal in bed mud is subjected to elution removal；Bioanalysis is to pass through microorganism
Or the heavy metal pollution in river bottom mud is transformed into the lower hypotoxicity form of validity or elution by the vital movement of plant
It extracts and achievees the purpose that remedying sludge.
The treatment effect of traditional pollution administration Heavy Metal Pollution in Sediments object in situ is undesirable, can not be by heavy metal pollution
Object is thoroughly eliminated, it is difficult to reach ideal regulation effect.Although dystopy stabilizes solidification method reduces river bottom to a certain extent
The validity and toxicity of mud heavy metal contaminants, but do not remove the heavy metal in river bottom mud really, once final disposal
Environmental condition changes, and stabilized cured heavy metal contaminants may reactivate release, leads to environmental pollution, and hold
The benthic ecosystem in destructible river, and required control expense is high, project amount is big.Chemical leaching technology can only then remove
The heavy metal of agent dissolution, and somewhat expensive can be leached in river bottom mud, it is difficult to be applied to a large-scale river bottom mud huge sum of money
Belong to pollution control, and leacheate also easily causes secondary pollution problem.Bioanalysis administers river heavy metal polluted bed mud then institute
It takes time longer, is difficult to reach regulation effect in a short time.
Summary of the invention
For in the prior art handle river bottom mud heavy metal contaminants method existing for defect, the purpose of the present invention is
It is that river bottom mud heavy metal can be effectively removed or recycle and not destroy the original ecosystem in river and riverbed safety by providing one kind
The method of property, this method project amount is low, it is at low cost, do not cause secondary pollution, be conducive to promote the use of.
In order to achieve the above technical purposes, the present invention provides a kind of river bottom mud heavy metal administering method, this method is
After cofferdam mode being taken to surround by heavy metal pollution river, river bottom mud in the cofferdam is stirred by mixing plant, simultaneously
The activating agent for promoting heavy metal dissolution is added in water into cofferdam；Bed mud is sufficiently mixed under stirring with water, promotes bed mud
In heavy metal dissolve in water, settle, aqueous solution of the upper layer containing heavy metal pass through heavy metals removal equipment heavy-metal ion removal
Afterwards, it returns in cofferdam；The heavy metal adsorption system of the heavy metals removal equipment passes through company by several heavy metal adsorption columns
Adapter tube road is in series；There is cavity, chamber portion is compound filled with nano-porous ceramic inside the heavy metal adsorption column
Material granule.
Technical solution of the present invention is handled river part bed mud by cofferdam mode, does not influence taking for lower reaches of river
Water water safety；The equipment of use is simple, and occupied area is small, can not influence the stabilization in riverbed in onshore operation, not influence two sides
The safety of river levee；River bottom mud is handled by way of stirring, dissolution, absorption, in conjunction with special adsorbent material, heavy metals removal
Significant effect, and selective absorption removal and recyclable heavy metal only are carried out to the heavy metal in bed mud, the original in river is not destroyed
There is the ecosystem, relatively existing in-situ treatment method has absolute technical advantage.
River bottom mud heavy metal administering method of the invention further includes following preferred embodiment:
In preferred scheme, nano-porous ceramic composite material is that can purchase in the nanometer of Ge Feng tech materials Co., Ltd
At least one of porous ceramic composite MA01, MF01, MP01, the huge sum of money such as MA01 primary attachment cadmium, lead, mercury, zinc, copper, thallium
The characteristics of category, MF01 primary attachment arsenic and lead, MP01 is that have preferably absorption to cadmium, lead, mercury, copper, thallium etc. in acid condition
Effect.The nano-porous ceramic composite material that the present invention uses has hole is flourishing (aperture can in 15 nanometers to 200 nanometers
Control), specific surface area height (up to 900m2/ g) the characteristics of, adsorption rate is high, adsorption capacity is big, and has the physico of ceramics
It learns stability (acid and alkali-resistance, high temperature resistant, intensity are big)；It is orderly grafted simultaneously with function machine group (no with high density in ceramic surface
With organic group to different type heavy metal ion have orientation complexing and selection adsorb) organic molecule formed monolayer,
Make it have the ability of fabulous selective absorption target heavy metal ion.Preferred choosing of the heavy-metal adsorption material to heavy metal
Selecting property is high, large amount of adsorption, and maximum heavy metal adsorption capacity possesses good mechanical strength, safe and non-toxic up to 400g/kg
The advantages such as harmless, without secondary pollution to environment, renewable recycling.Its working principle is that using ceramic monolith nanometer is attached to
Functional molecular layer in hole, which adsorbs the effects of absorption of heavy metal contaminants, complexing, chelating, is trapped in heavy metal suction
Inside enclosure material, heavy metal ion is fixed.
In preferred scheme, after being taken cofferdam mode to surround by heavy metal pollution river, river water temperature is 0 in control cofferdam
~40 DEG C, the pH of water in 2.0~7.0 ranges, more preferably scheme be in control cofferdam river water temperature in 28~32 DEG C, water
PH is in 4.5~5.5 ranges.Be more advantageous in temperature appropriate and pH environment promote river bottom mud in heavy metal ion it is molten
Out.
In preferred scheme, activating agent is citric acid.Citric acid has preferable promotion river bottom mud heavy metal ion molten
Effect out substantially increases the processing speed to river sludge heavy metal；And citric acid is environmentally friendly additive, safety
It is nontoxic not pollute river.
In preferred scheme, citric acid is 0.5L:0.1~5m with respect to the additional amount of bed mud in river3, most preferably
0.5L:0.5~1.5m3, wherein citric acid is added with the solution form that concentration is 0.2~0.4mol/L.
In preferred scheme, stirring rate is 200~400rpm/min.
In preferred scheme, the well-mixed time is 2~3h under stirring for bed mud and water.
In preferred scheme, when the heavy metal of heavy metal adsorption column absorption reaches saturation, pass through EDTA solution or hydrochloric acid
Solution elutes heavy metal adsorption column, regenerates the nano-porous ceramic composite material granular in heavy metal adsorption column, together
When obtain the solution containing heavy metal.The recycling of heavy metal is not only realized by hydrochloric acid or EDTA, and makes nano-porous ceramic
Composite material granular regeneration, recycling greatly reduce processing cost.The concentration of hydrochloric acid or EDTA can be according to nanoporous
The heavy metal amount of ceramic composite granular absorption is suitably adjusted.
The mixing plant that the present invention uses is the mixing plant of this field routine.
Heavy metals removal equipment of the present invention includes heavy metal adsorption system, connecting pipe, inlet and outlet；Heavy metal
Adsorption system is in series by connecting pipe by several heavy metal adsorption columns；There is sky inside the heavy metal adsorption column
Chamber, chamber portion are filled with graininess nano-porous ceramic composite material.Heavy metal adsorption column is preferably arranged 3~6, a huge sum of money
Belonging to adsorption column can be hollow cylinder structure.Water inlet is respectively equipped on the heavy metal adsorption column at heavy metal adsorption system both ends
And water outlet.Nano-porous ceramic composite material granular is filled in the cavity inside of heavy metal adsorption column by dense accumulation.
River bottom mud heavy metal administering method of the invention comprising the following specific steps
(1) river is carried out in the dry season to be administered, can need to administer river bottom mud by cofferdam and surround；
(2) contaminated one section of river is chosen, according to the flow velocity in river, river water depth, mercury situation is determined
The shapes and sizes in cofferdam determine suitable cofferdam material according to river situation；In the removable sedimentation basin of river bank placement and again
Metal removal equipment；
(3) keep cofferdam in 0.1~1m of water level, control cofferdam in coolant-temperature gage be 0~40 DEG C, initial pH be 2.0~
In 7.0 ranges, using the mixing plant that frequency is 200~400rpm/min is stirred, river bottom mud is stirred in cofferdam, makes bed mud
It is sufficiently mixed with water；
(4) lemon of appropriate environmentally friendly 0.2~0.4mol/L of concentration is added to river bottom mud within the scope of cofferdam
Acid activators promote heavy metal in bed mud to dissolve in water, by be added citric acid amount and river bottom mud volume ratio be 0.5L:
0.1~5m3；
(5) it is sufficiently stirred after 2~3h of reaction and the water containing heavy metal ion is pumped into sedimentation basin, clarification is stood, after clarification
Water enters back into heavy metals removal equipment, and treated, and water is discharged into cofferdam again；
(6) by the multiple stirring to bed mud and to the multiple secondary circular treatment of water, the heavy metal in bed mud is removed；
(7) when heavy metal adsorption column absorbs the heavy metal of enough (close to adsorption capacity), pass through EDTA solution or salt
Acid solution elutes heavy metal adsorption column, regenerates the nano-porous ceramic composite material in heavy metal adsorption column, simultaneously
Obtain the solution containing heavy metal.
Compared with the prior art, the technical solution bring technical effect of the present patent application:
1, it can be substantially reduced river bottom mud content of beary metal, reduce heavy metal pollution, the removal of heavy metal in river bottom mud
Rate reaches 90%~99%.
2, the original ecosystem for not destroying river, does not influence the stabilization in riverbed, does not influence the safety of two sides river levee, not shadow
Ring the water intaking water safety of lower reaches of river.
3, compared with tradition excavates landfill process, the method around riverbank without carrying out expropriation of land setting Large Construction of removing
Place, without construction landfill yard of taking over the land for use.
4, simple process, it is at low cost, do not generate secondary pollution.
5, the heavy-metal adsorption material that the present invention uses can regenerate, and not only realize the recycling of heavy metal, and make to receive
Rice porous ceramic composite regeneration, recycling greatly reduce processing cost.
In conclusion method of the invention belongs to improvement river bottom mud new technology in situ, river heavy metal can be effectively administered
Polluted bed mud has apparent economic benefit and social benefit, wide market.
Detailed description of the invention
[Fig. 1] is heavy metals removal device structure schematic diagram of the invention；1 is nano-porous ceramic composite material, and 2 attach most importance to
Metal adsorption column, 3 be pipeline；4 be water inlet, and 5 be water outlet, and 6 attach most importance to metal adsorbent system；
[Fig. 2] is process flow chart of the invention.
Specific embodiment
Following implementation column is intended to further illustrate the content of present invention, rather than limits the protection model of the claims in the present invention
It encloses.
Fig. 1 is heavy metals removal device structure schematic diagram of the present invention；It includes four heavy metal adsorption columns；Heavy metal adsorption
Column is hollow cylinder structure, the chamber portion dense accumulation of heavy metal adsorption column nano-porous ceramic composite material granular,
It connects to form cascaded structure by pipeline between heavy metal adsorption column and heavy metal adsorption column；The heavy metal at cascaded structure both ends is inhaled
Inlet and outlet are respectively equipped on attached column.
Embodiment 1
Heavy metal cadmium content in Hunan in the bed mud in river of somewhere is 7.5mg/kg, Zn content 723mg/kg, and copper content is
258mg/kg；To reduce the content of beary metal in bed mud, steps are as follows for improvement:
1) it is administered in the dry season, river bottom mud need to be administered by cofferdam and surrounded.
2) contaminated one section of river is chosen, according to the flow velocity in river, river water depth, mercury situation is determined
The shapes and sizes in cofferdam determine that cofferdam uses material according to river situation.River bank places removable sedimentation basin and heavy metal
Eliminating equipment places adsorbent material MA01 particle in equipment.
3) certain water level in cofferdam is kept, controlling coolant-temperature gage in cofferdam is 20 DEG C, and initial pH is 3.0, using stirring
Frequency is the mixing plant of 300rpm, and river bottom mud is stirred in cofferdam, is sufficiently mixed bed mud with water.
4) as the citric acid activated of appropriate environmentally friendly concentration 0.3mol/L is added in river bottom mud within the scope of cofferdam
Agent promotes heavy metal in bed mud to dissolve in water.Volume ratio by the amount that citric acid is added and river bottom mud is 0.5L:1m3；
5) water containing heavy metal ion is pumped into sedimentation basin after reaction 3h, stands clarification, the water after clarification enters back into a huge sum of money
Belong to eliminating equipment, treated, and water is discharged into cofferdam again.
6) by the multiple stirring to bed mud and to 2 circular treatments of water, the heavy metal in bed mud is removed.
If the MA01 heavy metal ion adsorbed reaches saturation, after being 1.5wt%EDTA elution with concentration for MA01, return
Receive heavy metal cadmium, zinc and copper, the adsorption capacity after MA01 regeneration reaches the 95% of original material, and it is reusable, as adsorbed
Heavy metal ion amount is not up to saturated, and can be continued to use；
After improvement, the heavy metal cadmium content in bed mud is down to 1.2mg/kg, Zn content is reduced to 321mg/kg, copper content drop
Down to 114mg/kg.If carrying out multiple circular treatment to bed mud, the removal rate of cadmium, zinc and copper in bed mud reach 90% with
On.
Embodiment 2
Heavy metal cadmium content in Hunan in the bed mud in river of somewhere is 8.5mg/kg, lead content 688mg/kg, to reduce bottom
Content of beary metal in mud, steps are as follows for improvement:
1) it is administered in the dry season, river bottom mud need to be administered by cofferdam and surrounded.
2) contaminated one section of river is chosen, according to the flow velocity in river, river water depth, mercury situation is determined
The shapes and sizes in cofferdam determine that cofferdam uses material according to river situation.River bank places removable sedimentation basin and heavy metal
Eliminating equipment places mixed adsorbing material MF01 and MP01 (mass ratio 1:1) in equipment.
3) certain water level in cofferdam is kept, controlling coolant-temperature gage in cofferdam is 30 DEG C, and initial pH is 5.0, using stirring
Frequency is the mixing plant of 350rpm, and river bottom mud is stirred in cofferdam, is sufficiently mixed bed mud with water.
4) as the citric acid activated of appropriate environmentally friendly concentration 0.3mol/L is added in river bottom mud within the scope of cofferdam
Agent promotes heavy metal in bed mud to dissolve in water.Volume ratio by the amount that citric acid is added and river bottom mud is 0.5L:3m3；
5) water containing heavy metal ion is pumped into sedimentation basin after reaction 3h, stands clarification, the water after clarification enters back into a huge sum of money
Belong to eliminating equipment, treated, and water is discharged into cofferdam again.
6) by the multiple stirring to bed mud and to 2 circular treatments of water, the heavy metal in bed mud is removed.
If the heavy metal ion of MF01 and MP01 absorption reaches saturation, can be by the hydrochloric acid of MF01 and MP01 15wt%
After elution, heavy metal cadmium, lead are recycled, the adsorption capacity after MF01 and MP01 regenerate reaches the 90% of original material, repeats
It uses, if the heavy metal ion amount of absorption is not up to saturated, can continue to use；
After improvement, the heavy metal cadmium content in bed mud is down to 1.4mg/kg, lead content is reduced to 401mg/kg.If the bottom of to
Mud carries out multiple circular treatment, and the removal rate of cadmium and lead in bed mud reaches 90% or more.
Embodiment 3
Various heavy metallic activation agent (are with soil containing heavy metal cadmium to heavy metal ions in soil result of extraction comparative experiments
Example is tested):
1, sampling spot: Hengyang City Hengdong County town: soil Cd content 17mgkg-1；
2, experiment reagent: heavy metallic activation agent: citric acid；Acetic acid；Tartaric acid；Ammonium acetate；Ammonium nitrate.
3, experimental procedure: 1), heavy metallic activation agent configuration: setting 0mmol/L, 1mmol/L, 5mmol/L, 10mmol/L,
Five concentration gradients of 15mmol/L, 20mmol/L.2) air-dried soil (crossing 80 meshes) 20g, is weighed to be placed in 250mL conical flask,
According to soil: the agent of 50mL heavy metallic activation is added in water=1:2.5, then shakes 30min, filtering to plastic containers on the oscillator
In it is to be measured.
3), influence of the different heavy metallic activation agent to heavy metal-polluted soil Cd extraction efficiency at various concentrations:
Influence of the different heavy metallic activation agent various concentrations of table 1 to heavy metal-polluted soil Cd extraction efficiency
Citric acid, acetic acid, ammonium nitrate and tartaric acid have certain extraction effect, acetic acid to heavy metal-polluted soil Cd as known from Table 1
Ammonium extraction effect is poor.With the raising of heavy metallic activation agent concentration, heavy metal-polluted soil Cd extraction yield is higher.Heavy metallic activation
When agent concentration is 5mmol/L, the optimal extraction yield of acetic acid is 23.36%；When heavy metallic activation agent concentration is 10mmol/L, nitric acid
The optimal extraction yield of ammonium is 40.61%；When heavy metallic activation agent concentration is 15mmol/L, the extraction yield of citric acid is 51.29%；
When heavy metallic activation agent concentration is 20mmol/L, the extraction yield of citric acid is 54.06%.As can be seen from Table 1 identical dense
Spending the lower relatively other heavy metallic activation agent of citric acid has the effect of that heavy metal in soil is preferably promoted to dissolve out.
Embodiment 4
The regeneration tests of nano-porous ceramic composite material:
MA01, MP01 and MF01 can be regenerated with EDTA and HCl, wherein can be restored using material adsorption capacity after EDTA regeneration
It the use of material adsorption capacity after regeneration of hydrochloric acid is initial 50% to initial 95%.After increase vacuumizes, it can restore to initial
The 70% of capacity.Experiment flow and data are as follows:
Experiment equipment and reagent:
Using test explanation is carried out for MA01 porous ceramic film material, prepared 200ppm waste water containing Cd；
250mL triangular flask, 250mL beaker, 250mL graduated cylinder, 10mL pipette, dropper vibrate case, assay balance etc.；
1, experimental procedure:
1) 30 parts of MA01 2.00g, are accurately weighed respectively with assay balance in 30 cleaned 250mL triangular flasks, point
It 1. 2. 3. Bian Hao not be ...；
2) waste water containing Cd that 100mL prepared 200ppm, is measured with clean 250mL graduated cylinder, in 1 triangular flask,
Successively install 30 triangular flasks；
3), 2 triangular flask is put into oscillation case and is vibrated, revolving speed 130rpm, temperature is room temperature (21 DEG C or so), oscillation
2h；
4) 10mL in the test tube for, taking 3 water sample in being composed of 1. 2. 3. ..., remaining heavy metal-containing waste water pour into Sewage treatment
Bucket, as far as possible to the greatest extent, sample inspection；
5), 10.0mL 6mol/L HCl or 1.5%EDTA solution is taken with the pipette of 10mL (take and separate when different liquids)
Respectively in the MA01 triangular flask being added after adsorbing, being placed in oscillation case, 130rpm, room temperature (21 DEG C or so) vibrates 1h；
6), the regenerated liquid in the above-mentioned triangular flask of oscillation is poured at wastewater collection, as far as possible to the greatest extent；
7) regenerated material in triangular flask, is cleaned with clear water, is respectively washed 5 times, then 1 time wash with distilled water, is vacuumized；
8) adsorption test again, is carried out, repeats 2~8；
Note: 1, the above experiment is completed in three batches；2, Cd solution used is matching while using, every batch of absorption in experimentation
Cd solution used is same, and while measuring every time measures the concentration of matched Cd solution simultaneously；
Test junction fruit and analysis
By testing to obtain data such as the following table 2 above:
Unit: mg/L
Absorption and desorption test data table of the 2 MA01 porous ceramic film material of table to heavy metal cadmium
Note: A1 is solution C d concentration after adsorbing for the first time, Cd concentration in regenerated liquid after R1 regenerates for first time, with such
It pushes away.
It performs an analysis to upper table data, calculates adsorbance and desorption rate, obtain result as shown in table 3 below.
Absorption and desorption test effect data of the 3 MA01 porous ceramic film material of table to heavy metal cadmium
2. test result analysis
First time adsorption effect reaches as high as 79%, minimum 37%, and average 57%；
In regeneration, EDTA effect preferably can reach 95%；
HCl effect is general, and the adsorbance in regenerative process is about the 50% of first time.
Claims (5)
1. a kind of river bottom mud heavy metal administering method, it is characterised in that: cofferdam mode will be taken to enclose by heavy metal pollution river
After firmly, river bottom mud in the cofferdam is stirred by mixing plant, while being added in water into cofferdam and promoting heavy metal dissolution
Activating agent；Bed mud is sufficiently mixed under stirring with water, and the heavy metal in bed mud is promoted to dissolve in water, is settled, and upper layer is containing weight
After the aqueous solution of metal passes through heavy metals removal equipment heavy-metal ion removal, return in cofferdam；The heavy metals removal is set
Standby heavy metal adsorption system is in series by connecting pipe by several heavy metal adsorption columns；The heavy metal adsorption column
Inside has cavity, and chamber portion is filled with nano-porous ceramic composite material granular；
The nano-porous ceramic composite material granular be nano-porous ceramic composite material MA01, MF01 and MP01 in extremely
Few one kind；
After being taken cofferdam mode to surround by heavy metal pollution river, controls river water temperature in cofferdam and exist in the pH of 28~32 DEG C, water
In 4.5~5.5 ranges；
The activating agent is citric acid；
When the heavy metal of heavy metal adsorption column absorption reaches saturation, heavy metal adsorption column is eluted by EDTA solution,
The nano-porous ceramic composite material granular in heavy metal adsorption column is regenerated, while obtaining the solution containing heavy metal.
2. river bottom mud heavy metal administering method according to claim 1, it is characterised in that: the citric acid is opposite to be enclosed
The additional amount of river bottom mud is 0.5L:0.1~5m in weir3, wherein the solution shape that citric acid is 0.2~0.4mol/L with concentration
Formula is added.
3. river bottom mud heavy metal administering method according to claim 1, it is characterised in that: the stirring rate is
200~400rpm/min.
4. river bottom mud heavy metal administering method according to claim 1, it is characterised in that: bed mud and water are in stirring action
Under the well-mixed time be 2~3h.
5. river bottom mud heavy metal administering method according to claim 1, it is characterised in that: the heavy metals removal is set
Standby includes heavy metal adsorption system, connecting pipe, inlet and outlet；Heavy metal adsorption system is by several heavy metal adsorptions
Column is in series by connecting pipe, and the heavy metal adsorption column at heavy metal adsorption system both ends is respectively equipped with water inlet and water outlet
Mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510974313.1A CN105668956B (en) | 2015-12-22 | 2015-12-22 | A kind of river bottom mud heavy metal administering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510974313.1A CN105668956B (en) | 2015-12-22 | 2015-12-22 | A kind of river bottom mud heavy metal administering method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105668956A CN105668956A (en) | 2016-06-15 |
| CN105668956B true CN105668956B (en) | 2019-01-11 |
Family
ID=56297662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510974313.1A Active CN105668956B (en) | 2015-12-22 | 2015-12-22 | A kind of river bottom mud heavy metal administering method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105668956B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101405223A (en) * | 2005-12-29 | 2009-04-08 | 微鼻技术公司 | Methods and compositions for removal of arsenic and heavy metals from water |
| CN102328974A (en) * | 2011-05-31 | 2012-01-25 | 厦门建霖工业有限公司 | Water purification material and preparation method thereof |
| CN103316626A (en) * | 2013-07-12 | 2013-09-25 | 苏州微陶重金属过滤科技有限公司 | Filtering material having arsenic and heavy metal adsorbing and fixing functions, and use thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10104882B4 (en) * | 2001-02-01 | 2005-01-05 | Helsa-Werke Helmut Sandler Gmbh & Co. Kg | Activated carbon moldings, process for its preparation, its use and process for the regeneration thereof |
-
2015
- 2015-12-22 CN CN201510974313.1A patent/CN105668956B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101405223A (en) * | 2005-12-29 | 2009-04-08 | 微鼻技术公司 | Methods and compositions for removal of arsenic and heavy metals from water |
| CN102328974A (en) * | 2011-05-31 | 2012-01-25 | 厦门建霖工业有限公司 | Water purification material and preparation method thereof |
| CN103316626A (en) * | 2013-07-12 | 2013-09-25 | 苏州微陶重金属过滤科技有限公司 | Filtering material having arsenic and heavy metal adsorbing and fixing functions, and use thereof |
Non-Patent Citations (1)
| Title |
|---|
| 无."森美思®河道底泥重金属五种专利治理技术".《湖南森美思环保》.2015,第1-4页. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105668956A (en) | 2016-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105618472B (en) | A kind of permanent method for removing available heavy metal in heavy-metal contaminated soil | |
| Sangiumsak et al. | Adsorption behavior of heavy metals on various soils. | |
| Weerasekara et al. | Metal oxide enhanced microfiltration for the selective removal of Co and Sr ions from nuclear laundry wastewater | |
| CN103979749B (en) | A kind for the treatment of apparatus and processing method thereof of removing heavy metal in sewage | |
| CN103990646B (en) | A kind of As polluted soil elution device and the method for disposal to As polluted soil | |
| An et al. | Design and application of thiourea modified D301 resin for the effective removal of toxic heavy metal ions | |
| CN108339520A (en) | A kind of depth goes nano-sized iron oxide-charcoal complex, preparation method and its application method of heavy metal in water removal | |
| Zhou et al. | Development of a fixed‐bed column with cellulose/chitin beads to remove heavy‐metal ions | |
| CN105478458B (en) | A kind of device and method of in-situ treatment river bottom mud heavy metal pollution | |
| Zhang et al. | Defluoridation in fixed bed column filled with Zr (IV)-loaded garlic peel | |
| CN106830119A (en) | The magnetic absorption processing unit of oil-polluted water | |
| CN107265548A (en) | A kind of method using the attapulgite depth adsorption and dephosphorization for loading hydrated ferric oxide | |
| CN103408209A (en) | Method for in-situ phosphorus release control of bottom sludge by using modified zeolite | |
| Abd Ali et al. | Numerical modeling of performance of olive seeds as permeable reactive barrier for containment of copper from contaminated groundwater | |
| CN105854847A (en) | Preparation method and application of suspension type material of starch modified nanoscale zero-valent iron | |
| CN107746717A (en) | Enteromorpha hydrothermal liquefaction prepares the application of the method for charcoal and the charcoal of preparation | |
| CN105621824B (en) | A method of it is in situ to administer river bottom mud heavy metal | |
| CN105668956B (en) | A kind of river bottom mud heavy metal administering method | |
| CN110902751B (en) | Permeable reactive barrier for underground pollutant migration control and underground pollutant migration control treatment method | |
| CN205653320U (en) | Equipment of river sediment heavy metal is administered to normal position | |
| Kong et al. | Arsenite and arsenate removal from contaminated groundwater by nanoscale iron–manganese binary oxides: column studies | |
| Al-Shawabkeh et al. | Experimental study of the application of date palm trunk fiber as biosorbent for removal cadmium using a fixed bed column: investigation of the influence of particle size | |
| CN101838026B (en) | Adsorption dam for emergency treatment of sudden heavy metal pollution of natural water body | |
| CN107129000A (en) | A kind of method that utilization artificial zeolite cellulose acetate composite removes ammonia nitrogen in super low concentration ammonia nitrogen waste water | |
| CN210117260U (en) | Farmland contains heavy metal sewage treatment plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |