CN1009341B - Resin and its making method for treatment waste water containing mercury - Google Patents
Resin and its making method for treatment waste water containing mercuryInfo
- Publication number
- CN1009341B CN1009341B CN 87100511 CN87100511A CN1009341B CN 1009341 B CN1009341 B CN 1009341B CN 87100511 CN87100511 CN 87100511 CN 87100511 A CN87100511 A CN 87100511A CN 1009341 B CN1009341 B CN 1009341B
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- CN
- China
- Prior art keywords
- mercury
- wood chip
- waste water
- composition
- blood
- 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.)
- Expired
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- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The present invention relates to cheap resin prepared by mixing wood dust and animal blood in the proportion of 1 kilogram to 2 to 3 liters and is particularly suitable for one-time use of waste water which has high concentration and contains mercury. In the resin, the capacity of penetrating the mercury under a neutral or alkaline condition is 130 mg/g, and saturation adsorption quantity is less than 190 mg/g. Common alkali metal and alkali earth metal in the waste water do not interfere the adsorption for the mercury. The resin saturated through adsorption can be used as a raw material in a mercury smelting plant to recover the mercury. The present invention can also be used for treating other heavy metal wastewater.
Description
The invention belongs to a kind of composition and this preparation of compositions method that is used to handle the natural cellulose/lignin of mercury-containing waste water.
Adopt natural cellulose in the processing and the recovery of heavy metal contamination, paid more and more attention, this is not only because natural cellulose is cheap and easy to get, and it also has certain adsorptive power to some metal, pure natural cellulose is generally less to the adsorptive power of metal, often to introduce active group, to improve its adsorptive power by the whole bag of tricks.
Handle the existing reported in literature of mercury-containing waste water about prepare composition with natural cellulose and/or lignin, as U.S. Pat .P.3,885,069(1975), cotton and other Web materials with the scavenging agent of ethylenimine polymer dipping back as mercury in the water and other heavy metal, U.S. Pat .P.3 and for example, 944,415(1976), be to be used for from dilute solution, removing mercury ion or other metal ion with formaldehyde modification pretreated nutshell or bark.Above natural cellulose and/or lignin, owing to adopt chemical process to introduce active group, cost is higher, loading capacity is less than normal, is not suitable for the disposable processing of high toxicity mercury, if adopt expensive composition, must regenerate, bring the trouble of mercury secondary pollution unavoidably again.
Purpose of the present invention is exactly to make the composition that a kind of cheap and easy to get, loading capacity is big, preparation is simple, be applicable to the disposable processing of mercury-containing waste water.
Composition of the present invention is to be matrix with the wood chip, is active group with the animal blood, forms according to the mixed of 2～3 liters of 1 kilogram of wood chip and animal bloods.
Said wood chip can be the timber scrap in the wood working among the present invention, and this wood chip can be the wood chip of timber of the same race, also can be the mixing wood chip of various timber.
Said animal blood can adopt the various animal bloods of ot-yet-hardened, recommends to adopt pig blood cheap and easy to get.
The preparation of the present composition is finished by the following step:
A. in wood chip: pig blood=1 kilogram: 2～3 liters of ratio mixings, dry under the room temperature,
B. use 100 ℃ of steam direct heating 20～40 minutes,
C. will containing the blood wood chip, to place concentration be 1-6%(weight) sulphuric acid soln, the ratio that contains blood wood chip and sulphuric acid soln is 1: 5(weight), mixing also is heated to 60 ℃, add concentration again and be hydrogen peroxide 6～9%(of 37% weight by wood chip) or add and be equivalent to the normal clorox of hydrogen peroxide oxidation, continue to be heated to 80～90 ℃, stop to heat and leaving standstill 4～10 hours.
D. be washed to colourlessly, add small amount of calcium chloride or sodium hydroxide and be neutralized to pH=7～11,
E.60 ℃ following dry for standby.
The present invention has following advantage: at first, raw material sources are abundant, and are with low cost, are utilization of waste material basically; The second, said composition preparation method is simple, user's now-making-now-using or the composition that makes is deposited the back use as required; The 3rd, this composition is big to the mercury loading capacity, its amount of penetrating 130mg/g, saturated extent of adsorption＞190mg/g; The 4th, this composition has higher adsorptive capacity to mercury under neutrality or alkaline condition, and is not subjected to the interference of common basic metal and alkaline-earth metal in the water; The 5th, the residual concentration of mercury is lower.Therefore, composition of the present invention is very suitable handles mercury-containing waste water under neutrality or alkaline condition, especially the composition after the disposable processing of high density mercury-containing waste water, and this absorption is saturated can be reclaimed mercury with roasting method by special factory (as the mercury smeltery).
The present invention also can be used for the processing of other heavy metal wastewater thereby and the recovery of heavy metal.
Embodiment 1
Get the pine sawdust that length is 0.3～0.5mm, press 1 kilogram of wood chip and 2.5 liters of mixing of pig blood, airing under the room temperature with 100 ℃ of steam direct heating 30 minutes, is got 50g and is contained the blood wood chip and add 250ml water and 4ml sulfuric acid (98%), add hydrogen peroxide (37%) 4ml when being heated to 60 ℃, continue to be heated to 85 ℃, stop the heating and left standstill 10 hours, the washing and in 60 ℃ of oven dry, productive rate 88-95%, the physical-chemical property that the composition that makes through aforesaid method has sees Table 1
The determination of physical appearance method of above composition and unit are referring to " Kunin.R; ion exchange resin; Zhu Xiuchang etc. translate; Science Press nineteen sixty ", chlorinity adopts classical Kai Shi to decide ammonia process, carboxyl is measured referring to " sieve 3.A. fruit literary composition work, Mierocrystalline cellulose and concomitant product chemistry thereof, Science Press 1958 ".
Embodiment 2
Pack into 2 columnss in series of Φ 15mm of the 10g composition of the example of learning from else's experience 1 preparation are the solution of underground water (pH=7-8) preparation of 125mg/l by the mercurous concentration of 10ml per hour with every gram composition, and this pH value of solution is 7.5-8.Effluent liquid is analyzed with cold atom fluorescent instrument, and its mercury concentration is 0.04-0.08mg/l, and the mercury capacity of penetrating is 130mg/g, saturated absorption mercury amount＞190mg/g, and the cleaning compositions oven dry with absorption after saturated, net gain 22.3%, its adsorption curve is seen Fig. 1.
Fig. 1 is the adsorption curve figure of the present composition to mercury-containing waste water, and wherein the X coordinate is that cumulative flow goes out amount of liquid, and unit is for rising, and the Y coordinate is the concentration of flowing liquid, and unit is Hg
++Mg/l, the concentration C O=125Hg of flowing liquid
++/ l, the pH value is 7.5-8, flow velocity is 10ml/g/h, the composition amount of adding G=10g, what penetrate capacity C asks method as follows: cross the big tangent line of a bit doing of rate of curve variable quantity and meet at A with the extended line that is parallel to the segment of curve of x axle, the x coordinate that the A point is corresponding is VA, and then the capacity of penetrating is: C=VACO/G(Hg
++Mg/g) composition is controlled at the following use of the capacity of penetrating usually.
Embodiment 3
With 10g by pack into 2 columnss in series of Φ 15mm of the composition of example 1 preparation, the solution that contains salt 25g/l with mercurous 113mg/l passes through with the flow velocity of 8.4ml/g/h, effluent liquid is measured through cold atom fluorescent instrument, its effluent liquid mercury concentration 0.08mg/l, penetrate capacity 110mg/g, by embodiment 3 as can be known, contain NaCl25g/l in the solution and use when following, to composition to penetrate capacity impact little.
Embodiment 4
Get certain vinylchlorid workshop, chemical plant mercury-containing waste water (pH＜1), adopt the waste lye of washing vinylchlorid to be neutralized to pH=0-11, the mercury concentration 0.40mg/l of this moment, with its by be equipped with 309 by the composition of embodiment 1 preparation in three columnss in series, the control flow velocity is 3ml/g/h, continue experiment 40 days, the residual mercury concentration＜0.03mg/l of effluent liquid, composition does not have denaturalization phenomenon.
Table 1
The wet total carboxyl of bulk specific gravity wet true density voidage saturated water absorption nitrogen content
0.221 1.25 82% 310% 5.37% 2.44%
Claims (2)
1, a kind of composition that is used to handle mercury-containing waste water is made of natural cellulose/lignin and active group usually, it is characterized in that said natural cellulose/lignin is a wood chip, and said active group is a pig blood, and wood chip and pig blood ratio are 2～3 liters of 1 kilogram of ratios.
2, by the said preparation of compositions method of claim 1, it is characterized in that preparing according to the following step;
A. in wood chip: pig blood=1 kilogram: 2～3 liters of ratio mixings, dry under the room temperature,
B. use 100 ℃ of steam direct heating 20～40 minutes,
C. will containing the blood wood chip, to place concentration be 1～6%(weight) sulphuric acid soln, the ratio that contains blood wood chip and sulphuric acid soln is 1: 5(weight), mixing also is heated to 60 ℃, add concentration again and be hydrogen peroxide 6～9%(of 37% weight by wood chip) or add and be equivalent to the normal clorox of hydrogen peroxide oxidation, continue to be heated to 80～90 ℃, stop to heat and leaving standstill 4～10 hours
D. be washed to colourlessly, add small amounts calcium or sodium hydroxide and be neutralized to pH=7～11,
E.60 ℃ following dry for standby.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87100511 CN1009341B (en) | 1987-01-28 | 1987-01-28 | Resin and its making method for treatment waste water containing mercury |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87100511 CN1009341B (en) | 1987-01-28 | 1987-01-28 | Resin and its making method for treatment waste water containing mercury |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87100511A CN87100511A (en) | 1988-08-10 |
| CN1009341B true CN1009341B (en) | 1990-08-29 |
Family
ID=4812904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87100511 Expired CN1009341B (en) | 1987-01-28 | 1987-01-28 | Resin and its making method for treatment waste water containing mercury |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1009341B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404733C (en) * | 2004-02-18 | 2008-07-23 | 可乐丽股份有限公司 | Conductive polyvinyl alcohol fiber |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106395969B (en) * | 2016-11-25 | 2019-04-19 | 湖北大学 | A method of Cd2+ or Cu2+ waste water is handled by adsorbent of animal blood meal |
-
1987
- 1987-01-28 CN CN 87100511 patent/CN1009341B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404733C (en) * | 2004-02-18 | 2008-07-23 | 可乐丽股份有限公司 | Conductive polyvinyl alcohol fiber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN87100511A (en) | 1988-08-10 |
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