CN107285422A - A kind of method that utilization tea grounds removes Pb In Exhausted Water ion - Google Patents
A kind of method that utilization tea grounds removes Pb In Exhausted Water ion Download PDFInfo
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- CN107285422A CN107285422A CN201710579139.XA CN201710579139A CN107285422A CN 107285422 A CN107285422 A CN 107285422A CN 201710579139 A CN201710579139 A CN 201710579139A CN 107285422 A CN107285422 A CN 107285422A
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- Prior art keywords
- tea grounds
- waste water
- powder
- removes
- tea
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
-
- 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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- 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)
- Processing Of Solid Wastes (AREA)
Abstract
A kind of method that utilization tea grounds removes Pb In Exhausted Water ion, to containing Pb2+Tea grounds powder is added in waste water, then under the conditions of 20 ~ 40 DEG C, processing makes tea grounds powder adsorption Pb for 8 ~ 20 minutes2+；It is described to contain Pb2+Pb in waste water2+Concentration be less than or equal to 30mg/L, the tea grounds powder with containing Pb2+The ratio of waste water between the two is 0.2 ~ 1g:100ml, it is described to contain Pb2+The pH value of waste water is 6 ~ 9.The present invention is by the use of tea grounds as biological adsorption material, with to the heavy metal Pb in water2+The good advantage of removal effect, can reach the purpose of the treatment of wastes with processes of wastes against one another.
Description
Technical field
The invention belongs to environmental protection technical field, and in particular to a kind of to remove weight in waste water by the use of tea grounds as adsorbent
The method of metal lead ion.
Background technology
Lead is the A races element of periodic table of elements period 6 IV, is prevalent in nature.Lead content in soil for 2 ~
Lead is discharged into environment by natural phenomenas such as volcano eruption, tsunamis in 200mg/kg, nature.
In addition to natural source, lead waste water is mainly derived from artificial pollution.With the quickening of human industryization process, adopt
The heavy metal that the industries such as ore deposit, metal smelt, leather manufacture are produced largely enters in environment, and heavy metal toxicity is big, savings property is strong, especially
It is waste gas containing lead, waste water, the waste residue discharged in the mining industry and metal smelt process, is the weight for causing current lead contamination
Want reason.Next to that what the waste gas containing lead of automobile discharge was caused, lead tetraethide is contained in gasoline, as anti-knock agent, than general
Inorganic lead harm is big, in gasoline combustion process, is discharged into tail gas in air, the another main source as lead contamination.
Lead is the unique unwanted trace element of human body, and nosotoxicosis occurs in 80 ~ 100 μ g/100ml in adult's blood lead
Shape, and children only reach 50 ~ 60 μ g/100ml and poisoning symptom just occur.0.3 ~ 1.0mg/L daily ingestion lead amount can be in people
Cylinder accumulation, is caused damage by vasopasm, suppression hemoglobin synthesis to the nervous system and cardiovascular system of human body, after
And cause the illnesss such as neuritis, hepatitis, anaemia and ephritis.Lead tolerance is generally 0.005 ~ 0.01mg/L in natural water body.Lead is dense
When spending for 0.1mg/L, the self purification of water body can be destroyed.When concentration reaches 0.1 ~ 0.3mg/L in water body, fish can be caused dead
Die.
Existence form of the lead in water is complicated, and in life heavy metal ion especially lead processing requirement it is strict, such as
What cost-effective removal lead ion is an important topic of field of Environment Protection in recent years.Conventional processing method has chemical precipitation
Method, electrolysis, bioanalysis, ion-exchange, membrane separation process, absorption method etc..
Chemical precipitation method is, by the chemical substance such as feeding lime, caustic soda into heavy metal, generation precipitation to be allowed to, so as to go
Remove；Electrolysis is that heavy metal ion obtains electronics so that being reduced into metal simple-substance gives removal in cathode surface；Bioanalysis bag
Biological adsorption, three kinds of modes of bioflocculation and phytoremediation are included, most lead is removed by biological adsorption；Ion exchange
Method carries out ion exchange using the lead ion in ion-exchanger and waste water, so as to remove lead ion；Membrane separation process mainly passes through
Under the promotion of outer masterpiece, make lead ion separate from solution to reach removal using selective film
Purpose；Absorption method mainly to lead ion adsorb removing using the microcellular structure of sorbing material.
Absorption method has the advantages that simple and easy to apply, good purification, renewable, non-secondary pollution.
The content of the invention
Present invention aims at provide a kind of method that utilization tea grounds removes Pb In Exhausted Water ion.
To achieve the above object, the technical scheme that provides of the present invention is：A kind of utilization tea grounds removes Pb In Exhausted Water ion
Method, to containing Pb2+Tea grounds powder is added in waste water, then under the conditions of 20 ~ 40 DEG C, processing makes tea grounds powder adsorption in 8 ~ 20 minutes
Pb2+；It is described to contain Pb2+Pb in waste water2+Concentration be less than or equal to 30mg/L, the tea grounds powder with containing Pb2+Waste water is between the two
Ratio be 0.2 ~ 1g:100ml, it is described to contain Pb2+The pH value of waste water is 6 ~ 9.
It is preferred that technical scheme be：The tea grounds powder is the useless tealeaf residue or/and Tea Production mistake produced after making tea
The useless drying tea leaves produced in journey, pulverizer crosses the powder that 40 mesh sieves are obtained after crushing.
It is preferred that technical scheme be：It is described to contain Pb2+Cu in waste water2+And Cr2+Content be respectively less than Pb2+Content.
It is preferred that technical scheme be：Containing Pb2+Insert in a container, then put the container after waste water and the mixing of tea grounds powder
In an isothermal vibration case, the rotating speed of the isothermal vibration case is 150r/min.
Because above-mentioned technical proposal is used, the present invention this have the advantage that compared with prior art：
The present invention is by the use of tea grounds as biological adsorption material, with to the heavy metal Pb in water2+The good advantage of removal effect, can
Reach the purpose of the treatment of wastes with processes of wastes against one another.
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
The detection method of the present invention includes：
Detect Pb2+、Cu2+、Cd2+Concentration uses NITRATE BY FLAME ATOMIC spectrophotometry, and using cathode modulation, flame continuity method is entered
Sample, the analysis wavelength of use is respectively 228.80nm, 324.75nm, 216.70nm, and gas flow is 1.2L/min.
2.4.2 clearance calculation formula
（2-2）
In formula： qe--- tealeaves is to the equilibrium adsorption capacity of lead, (mg/g)；
qt--- t tealeaves is to the adsorbance of lead, (mg/g)；
C0--- the concentration of lead in initial soln, (mg/L)；
Ce--- adsorb and reach after balance, the concentration of residual lead in solution, (mg/L)；
V --- liquor capacity, (L)；
M --- represent adsorbent mass, (g).
Embodiment one：A kind of method that utilization tea grounds removes Pb In Exhausted Water ion
A kind of method that utilization tea grounds removes Pb In Exhausted Water, to containing Pb2+Tea grounds powder is added in waste water, then in 30 DEG C of conditions
Under, processing makes tea grounds powder adsorption Pb for 15 minutes2+；It is described to contain Pb2+Pb in waste water2+Concentration be 21mg/L, the tea grounds powder
With containing Pb2+The ratio of waste water between the two is 0.5g:100ml, it is described to contain Pb2+The pH value of waste water is 8.
The tea grounds powder is the useless tealeaf residue drying produced after making tea, and pulverizer crosses the powder that 40 mesh sieves are obtained after crushing
End.
It is described to contain Pb2+Cu is free of in waste water2+And Cr2+。
Containing Pb2+Insert in a container, the container be placed in an isothermal vibration case after waste water and the mixing of tea grounds powder then,
The rotating speed of the isothermal vibration case is 150r/min.
The filtrate obtained after filtering is detected, containing Pb2+The Pb of waste water2+Clearance is 95.12%.
Embodiment two：A kind of method that utilization tea grounds removes Pb In Exhausted Water ion
A kind of method that utilization tea grounds removes Pb In Exhausted Water, to containing Pb2+Tea grounds powder is added in waste water, then in 25 DEG C of conditions
Under, processing makes tea grounds powder adsorption Pb for 18 minutes2+；It is described to contain Pb2+Pb in waste water2+Concentration be 30mg/L, the tea grounds powder
With containing Pb2+The ratio of waste water between the two is 1g:100ml, it is described to contain Pb2+The pH value of waste water is 7.
The tea grounds powder is the useless drying tea leaves produced during the useless tealeaf residue and Tea Production produced after making tea,
Pulverizer crosses the powder that 40 mesh sieves are obtained after crushing.
It is described to contain Pb2+Cu in waste water2+Content be 5mg/L, Cr2+Content be 4mg/L.
Containing Pb2+Insert in a container, the container be placed in an isothermal vibration case after waste water and the mixing of tea grounds powder then,
The rotating speed of the isothermal vibration case is 150r/min.
The filtrate obtained after filtering is detected, containing Pb2+The Pb of waste water2+Clearance is 93.57%.
Embodiment three：A kind of method that utilization tea grounds removes Pb In Exhausted Water ion
A kind of method that utilization tea grounds removes Pb In Exhausted Water, to containing Pb2+Tea grounds powder is added in waste water, then in 20 DEG C of conditions
Under, processing makes tea grounds powder adsorption Pb for 20 minutes2+；It is described to contain Pb2+Pb in waste water2+Concentration be 18mg/L, the tea grounds powder
With containing Pb2+The ratio of waste water between the two is 1g:100ml, it is described to contain Pb2+The pH value of waste water is 9.
The tea grounds powder is the useless drying tea leaves that will be produced during Tea Production, and pulverizer is crossed 40 mesh sieves after crushing and obtained
The powder arrived.
It is described to contain Pb2+Cr in waste water2+Content be 1mg/L.
Containing Pb2+Insert in a container, the container be placed in an isothermal vibration case after waste water and the mixing of tea grounds powder then,
The rotating speed of the isothermal vibration case is 150r/min.
The filtrate obtained after filtering is detected, containing Pb2+The Pb of waste water2+Clearance is 89.67%.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (4)
1. a kind of method that utilization tea grounds removes Pb In Exhausted Water ion, it is characterised in that：To containing Pb2+Tea grounds powder is added in waste water
End, then under the conditions of 20 ~ 40 DEG C, processing makes tea grounds powder adsorption Pb for 8 ~ 20 minutes2+；It is described to contain Pb2+Pb in waste water2+It is dense
Degree is less than or equal to 30mg/L, and the tea grounds powder is with containing Pb2+The ratio of waste water between the two is 0.2 ~ 1g:100ml, it is described to contain
Pb2+The pH value of waste water is 6 ~ 9.
2. the method that utilization tea grounds according to claim 1 removes Pb In Exhausted Water ion, it is characterised in that：The tea grounds powder
End is the useless drying tea leaves produced during the useless tealeaf residue or/and Tea Production produced after making tea, mistake after pulverizer is crushed
The powder that 40 mesh sieves are obtained.
3. the method that utilization tea grounds according to claim 1 removes Pb In Exhausted Water ion, it is characterised in that：It is described to contain Pb2+
Cu in waste water2+And Cr2+Content be respectively less than Pb2+Content.
4. the method that utilization tea grounds according to claim 1 removes Pb In Exhausted Water ion, it is characterised in that：Containing Pb2+Waste water
Insert in a container, the container is placed in an isothermal vibration case with after the mixing of tea grounds powder then, the isothermal vibration case
Rotating speed is 150r/min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710579139.XA CN107285422A (en) | 2017-07-17 | 2017-07-17 | A kind of method that utilization tea grounds removes Pb In Exhausted Water ion |
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| CN201710579139.XA CN107285422A (en) | 2017-07-17 | 2017-07-17 | A kind of method that utilization tea grounds removes Pb In Exhausted Water ion |
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| CN107285422A true CN107285422A (en) | 2017-10-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109985606A (en) * | 2019-04-10 | 2019-07-09 | 南昌大学 | A kind of preparation method and applications of tea grounds soluble dietary fiber heavy metal absorbent |
Citations (4)
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|---|---|---|---|---|
| CN101306347A (en) * | 2008-02-19 | 2008-11-19 | 浙江大学 | Preparation method and renovation method of treatment tea for absorbing heavy metal ion in waste water |
| CN101507914A (en) * | 2009-02-10 | 2009-08-19 | 浙江大学 | Preparation method of tea-leaf power capable of processing lead-containing waste water and use method thereof |
| CN202849189U (en) * | 2012-05-08 | 2013-04-03 | 长沙理工大学 | Device for removing lead in industrial waste water by utilizing tea leaves |
| CN106946361A (en) * | 2017-03-31 | 2017-07-14 | 韩培利 | A kind of purifying agent for polluted water and preparation method thereof |
-
2017
- 2017-07-17 CN CN201710579139.XA patent/CN107285422A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101306347A (en) * | 2008-02-19 | 2008-11-19 | 浙江大学 | Preparation method and renovation method of treatment tea for absorbing heavy metal ion in waste water |
| CN101507914A (en) * | 2009-02-10 | 2009-08-19 | 浙江大学 | Preparation method of tea-leaf power capable of processing lead-containing waste water and use method thereof |
| CN202849189U (en) * | 2012-05-08 | 2013-04-03 | 长沙理工大学 | Device for removing lead in industrial waste water by utilizing tea leaves |
| CN106946361A (en) * | 2017-03-31 | 2017-07-14 | 韩培利 | A kind of purifying agent for polluted water and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 周菁菁: "茶叶对废水中铅锌镉离子的吸附性能研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109985606A (en) * | 2019-04-10 | 2019-07-09 | 南昌大学 | A kind of preparation method and applications of tea grounds soluble dietary fiber heavy metal absorbent |
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