CN104973674B - Heavy metal wastewater treatment agent - Google Patents
Heavy metal wastewater treatment agent Download PDFInfo
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- CN104973674B CN104973674B CN201510453302.9A CN201510453302A CN104973674B CN 104973674 B CN104973674 B CN 104973674B CN 201510453302 A CN201510453302 A CN 201510453302A CN 104973674 B CN104973674 B CN 104973674B
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Abstract
The invention discloses a heavy metal wastewater treatment agent which contains the following components in parts by weight: 8 parts of beta-cyclodextrin, 9 parts of polyacrylamide, 3 parts of carrageenan, 8 parts of natrium humate and 70 parts of sepiolite. The heavy metal wastewater treatment agent disclosed by the invention is high in reaction speed, high in stability of reagent treatment process and strong in environmental tolerance, and under a suitable condition, the removal rate of Pb<2+> of the heavy metal wastewater treatment agent can reach 99% or more.
Description
Technical field
The present invention relates to waste water, sewage disposal field of purification, more specifically point out, the present invention relates to one kind contains for process
The heavy metal containing wastewater treatment agent of heavy metal wastewater thereby.
Background technology
The mankind extend with surprising rapidity to the demand of water resource, and increasingly serious water pollution simultaneously is just nibbled
It is available for the water resource consumed in a large number.The global mankind are in concern for the environment protection and environmental improvement problem, the pollution of heavy metal
It is also one of environmental problem that people consider, because this daily life of seriously having threatened the mankind and the health of itself.Full generation
Boundary there are about 200 tons of rubbish daily and pours river, lake and streams into, and all rivers flowing through Asian Cities are all contaminated, the U.S. 40%
The processed food wastes in water resource basin, metal, fertilizer and pesticide pollution according to survey data in recent years, China has more than 1/3
River be contaminated, nearly 50% key cities water head site does not meet drinking water standard, and more than 90% urban waters pollution is tight
Weight.
In recent years, the rate of economic development of China is accelerated continuous, and economical to greatly develop the environmental problem to carry non-
Chang Yanjun, the Chinese land resources publication issued in 2012 from the Ministry of Land and Resources of China finds, nearly there is 60% ground in China
Lower water quality is poor, and in national all of Water-quality Monitoring Points, the water quality having 17% is excessively poor, and heavy metal pollution is serious
Provinces and cities just reach as many as 14.All the time, the sewage that subsoil water is discharged by unqualified enterprise, the use of agriculture chemical are not good at
Pollute etc. reason.In the April in 2 years one by one, " heavy metal pollution integrated control " 12 " planning " is formal to put into effect, will a huge sum of money
The control belonging to pollution has been divided into two grades, and the heavy metal ion of primary rank has lead, hydrargyrum, cadmium, chromium and metalloid arsenic, and this is five big
Class, the secondly heavy metal ion of serious harm respectively nickel, zinc, stannum, copper, molybdenum etc., and list the enterprise needing key-point management
Industry classification: the related smelting enterprise of the mining firm of non-ferrous metal aspect, heavy metal, battery industry, leather and chemical reagent
Related manufacturing enterprise, is all included into by object deeply concerned, needs to control the contamination hazard of heavy metal ion.
Industrial wastewater, is the primary pollution source causing environmental pollution, and the pollution of wherein heavy metal ion-containing waste water is particularly tight
Weight.Heavy metal is that have the important pollutant of potential hazard, health and ecological environment is produced and greatly endangers.Development weight
Metallic wastewater treatment technology, not only contributes to environmental conservation, and can promote industrial development and the progress of human society.With much money
Belong to waste water be mainly derived from mining, ore dressing, smelting, plating, chemical industry, process hides and paper industry, these industries generation leaded,
After the waste water of the heavy metals such as hydrargyrum, cadmium, chromium, nickel, copper, zinc enters natural water body, not only aquatile is constituted a threat to, and may
Constantly it is enriched with by precipitation, absorption and food chain, destroy ecological environment, and finally jeopardize the health of the mankind.Work as heavy metal
When being adsorbed by organism, except single ion exist outer it is also possible to the protein internal with biology, aminoacid, fatty acid, carboxylic acid
And phosphoric acid combines, form acylate, inorganic acid salt and chelate.Heavy metal ion and its toxicity of compound, typically all
It is to be played a role by the combination with living organism composition, stronger with the more strong then toxicity of organism combination.From 20th century
Minamata disease and Itai-itai diseases in Japan in the fifties, and investigate this be due to the nuisance disease caused by mercury pollution and cadmium pollution with
Afterwards, the problem of environmental pollution of heavy metal receives much attention.At present, the most interestingly lead, hydrargyrum, cadmium, arsenic and chromium
Deng pollution.
Content of the invention
The invention discloses a kind of heavy metal containing wastewater treatment agent.Heavy metal containing wastewater treatment agent mainly selected beta-schardinger dextrin-,
Polyacrylamide, carrageenin, natrium humate and meerschaum, obtain a huge sum of money for solid-state by certain making step and course of reaction
Belong to waste water treating agent.The ability of the anti-extreme condition of heavy metal containing wastewater treatment agent of the present invention strengthens, preference temperature, ph value and intake
Cod concentration range broadens.Under optimum conditions, the pb of heavy metal containing wastewater treatment agent2+Clearance can reach more than 99%.
A kind of heavy metal containing wastewater treatment agent, concrete preparation comprises the following steps:
(1) preparation of beta-schardinger dextrin-solution
Take 35 parts of distilled water with graduated cylinder, add 8 parts of beta-schardinger dextrin -s, put it in centrifuge, in 1000 ~ 3000r/min
Lower centrifugation 5 minutes, centrifugation spends distilled water flushing again after terminating and adds to 50 parts of beta-schardinger dextrin-solution.
(2) chelatropic reaction
Weigh 9 parts of polyacrylamides and 3 parts of carrageenin by a certain percentage, being added thereto to 20ml distilled water, to add to 90 Celsius
Degree chelatropic reaction, is cooled to room temperature in water-bath.Add 50 parts of beta-schardinger dextrin-solution ultrasonic wave concussion mixing.
The preparation of (3) half solid fraction blanks
Weigh 8 parts of natrium humates and 70 parts of meerschaums, ground 80 mesh sieves, be added in above-mentioned mixed solution, obtain half
Solid fraction blank.
(4) pelletizing sintering
Carry out pelletizing, about diameter 6 ~ 10mm, Balling time is 12min, sintering temperature is 300 DEG C, and roasting time is
30min, obtains spherical heavy metal containing wastewater treatment agent.
Compared with prior art, the invention has the beneficial effects as follows: (1) heavy metal containing wastewater treatment agent response speed is fast, reagent
The stability of processing procedure is high；(2) heavy metal containing wastewater treatment agent good effect of separating solid from liquid, processing procedure is easy to control；(3) with much money
Belong to waste water treating agent strong to environment resistance (as ph, temperature, organic solvent, noxious substance)；(4) heavy metal containing wastewater treatment agent is led to
Cross the oxidable state reducing the weak acid soluble state of Heavy Metals in Waters and the mass fraction of reducible state and ratio, raising heavy metal
With the mass fraction of residual form and ratio etc.；(5) heavy metal is promoted to be converted from high bioavailable state to low bioavailable state,
Thus reducing effectiveness and the migratory movement of Heavy Metals in Waters；(6) effectively inhibit the enrichment of crop heavy metal and turn
Fortune, alleviates the murder by poisoning of heavy metal.
Brief description
Fig. 1 is the impact of heavy metal containing wastewater treatment agent consumption.
Specific embodiment
With reference to being embodied as example, the present invention is described in further detail.It should be understood that example below is only used for
The bright present invention rather than the restriction scope of the invention.
Embodiment 1
Prepare for heavy metal containing wastewater treatment agent xmfs01.
(1) preparation of beta-schardinger dextrin-solution
Take 35 parts of distilled water with graduated cylinder, add 8 parts of beta-schardinger dextrin -s, put it in centrifuge, under 2000r/min from
The heart 5 minutes, centrifugation spends distilled water flushing again after terminating and adds to 50 parts of beta-schardinger dextrin-solution.
(2) chelatropic reaction
Weigh 9 parts of polyacrylamides and 3 parts of carrageenin by a certain percentage, being added thereto to 20ml distilled water, to add to 90 Celsius
Degree chelatropic reaction, is cooled to room temperature in water-bath, adds 50 parts of beta-schardinger dextrin-solution ultrasonic wave concussion mixing.
The preparation of (3) half solid fraction blanks
Weigh 8 parts of natrium humates and 70 parts of meerschaums, ground 80 mesh sieves, be added in above-mentioned mixed solution, obtain half
Solid fraction blank.
(4) pelletizing sintering
Carry out pelletizing, about diameter 6 ~ 10mm, Balling time is 12min, sintering temperature is 300 DEG C, and roasting time is
30min, obtains spherical heavy metal containing wastewater treatment agent.
It is obtained for heavy metal containing wastewater treatment agent xmfs01.
Embodiment 2
The consumption of heavy metal containing wastewater treatment agent and pb in solution2+The relation of clearance.
At normal temperatures and pressures, take containing pb2+Concentration is the solution 40ml of 500mg/l, plus different amounts of heavy metal containing wastewater treatment
Agent, oscillating reactionss 2h on the oscillator, the consumption investigating water treatment agent removes pb to water treatment agent2+Amount and solution in pb2+Go
Impact except rate.The consumption of water treatment agent and pb in solution2+The relation of clearance is shown in accompanying drawing 1, from figure 1 it appears that at water
The consumption of reason agent is bigger, pb in solution2+Clearance is also bigger, and the water treatment agent of Unit Weight removes pb2+Amount less, when
When the consumption of water treatment agent reaches 2.4, pb in solution2+Clearance reaches 99.91%.
Claims (3)
1. a kind of heavy metal containing wastewater treatment agent it is characterised in that: the preparation of (1) beta-schardinger dextrin-solution, take 35 parts of distillations with graduated cylinder
Water, adds 8 parts of beta-schardinger dextrin -s, puts it in centrifuge, is centrifuged 5 minutes under 1000 ~ 3000r/min, is centrifuged after terminating again
Add to 50 parts of beta-schardinger dextrin-solution with distilled water flushing；(2) chelatropic reaction, weighs 9 parts of polyacrylamides and 3 by a certain percentage
Part carrageenin, is added thereto to 20ml distilled water and is heated to 90 degrees Celsius of chelatropic reactions, be cooled to room temperature in water-bath, adds
50 parts of beta-schardinger dextrin-solution ultrasonic wave concussion mixing；The preparation of (3) half solid fraction blanks, weighs 8 parts of natrium humates and 70 parts of Hai Pao
Stone, ground 80 mesh sieves, it is added in above-mentioned mixed solution, obtain half solid fraction blank；(4) pelletizing sintering, carries out pelletizing, diameter
6 ~ 10mm, Balling time is 12min, and sintering temperature is 300 DEG C, and roasting time is 30min, obtains spherical heavy metal containing wastewater treatment
Agent.
2. according to claim 1 a kind of heavy metal containing wastewater treatment agent it is characterised in that: the carrageenin of use be λ type angle fork
Glue, or one or more compounding mixed types of λ type carrageenin and kappa, iota, mu, nu, theta, xi type carrageenin
Carrageenin.
3. according to claim 1 a kind of heavy metal containing wastewater treatment agent it is characterised in that: centrifuge speed be 2000r/
min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510453302.9A CN104973674B (en) | 2015-07-29 | 2015-07-29 | Heavy metal wastewater treatment agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510453302.9A CN104973674B (en) | 2015-07-29 | 2015-07-29 | Heavy metal wastewater treatment agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104973674A CN104973674A (en) | 2015-10-14 |
| CN104973674B true CN104973674B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510453302.9A Expired - Fee Related CN104973674B (en) | 2015-07-29 | 2015-07-29 | Heavy metal wastewater treatment agent |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110548484A (en) * | 2019-07-29 | 2019-12-10 | 郭建华 | Efficient adsorption material for heavy metals Cr, Cu, Cd and Pb ions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6020422A (en) * | 1996-11-15 | 2000-02-01 | Betzdearborn Inc. | Aqueous dispersion polymers |
| CN1527738A (en) * | 2001-02-06 | 2004-09-08 | 沃特维森斯国际公司 | Compositions of insoluble magnesium containing minerals for use in fluid filtration |
| CN104129831A (en) * | 2014-07-29 | 2014-11-05 | 南京大学 | Method for simultaneous removal and recovery of heavy metal ions and organic acid by using chelating resin |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110006013A1 (en) * | 2005-02-15 | 2011-01-13 | Halosource, Inc. | Method for the removal of submicron particulates from chlorinated water by sequentially adding a cationic polymer followed by adding an anionic polymer |
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2015
- 2015-07-29 CN CN201510453302.9A patent/CN104973674B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6020422A (en) * | 1996-11-15 | 2000-02-01 | Betzdearborn Inc. | Aqueous dispersion polymers |
| CN1527738A (en) * | 2001-02-06 | 2004-09-08 | 沃特维森斯国际公司 | Compositions of insoluble magnesium containing minerals for use in fluid filtration |
| CN104129831A (en) * | 2014-07-29 | 2014-11-05 | 南京大学 | Method for simultaneous removal and recovery of heavy metal ions and organic acid by using chelating resin |
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| CN104973674A (en) | 2015-10-14 |
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