CN105540792A - Heavy metal wastewater treating agent and preparation method thereof - Google Patents
Heavy metal wastewater treating agent and preparation method thereof Download PDFInfo
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- CN105540792A CN105540792A CN201610005098.9A CN201610005098A CN105540792A CN 105540792 A CN105540792 A CN 105540792A CN 201610005098 A CN201610005098 A CN 201610005098A CN 105540792 A CN105540792 A CN 105540792A
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- heavy metal
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- treatment agent
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
Abstract
The invention provides a heavy metal wastewater treating agent and a preparation method thereof. The treating agent is prepared from deacetylated chitin, ethanol, aluminum sulfate, sodium hydroxide, calcium hydroxide, ferric chloride, ferric sulfate, methyl 4-hydroxybenzoate, sodium diacetate, hydrogen peroxide, peracetic acid, sodium hydrosulfite, hydrochloric acid and water. The preparation method of the heavy metal wastewater treating agent includes the steps that firstly, deacetylated chitin, hydrochloric acid and water are mixed at the normal temperature and stirred with a magnetic stirrer; then, aluminum sulfate, sodium hydroxide, calcium hydroxide, ferric chloride, ferric sulfate, sodium diacetate, hydrogen peroxide, peracetic acid and sodium hydrosulfite are added, and the mixture is heated and continues to be stirred; finally, a mixed solution of ethanol and methyl 4-hydroxybenzoate is added, the mixture is stirred, and the heavy metal wastewater treating agent is obtained. The heavy metal wastewater treating agent can effectively remove heavy metal ions and make treated water reusable due to the good flocculation effect; in addition, the preparation method of the heavy metal wastewater treating agent is simple and suitable for industrial production.
Description
Technical field
The present invention relates to water conditioner field, be specifically related to a kind of heavy metal containing wastewater treatment agent and preparation method thereof.
Background technology
Although China's gross amount of water resources accounts for the 6th, the world, the water yield is only 1/4 of the world per capita, is one of country of water resources wretched insufficiency, at present serious water shortage.On the other hand, in recent years along with the increase of industrial development and mankind itself's activity, create a large amount of trade effluent containing heavy metal contaminants and city domestic sewage.It is estimated, the whole world is discharged into heavy metal in environment every year up to millions of tons, and wherein Cu is 14.7 ten thousand tons, and Hg is 1.2 ten thousand tons, and Ni is 38.1 ten thousand tons etc., and year by year all in rising.Heavy metal wastewater thereby mainly comes from metallurgy industry, electroplating industry, and all trades and professions such as electrolysis, agricultural chemicals, dyestuff.Heavy metal wastewater thereby cannot be biodegradable, and can accumulate simultaneously, not only cause very large harm to environment, and finally run up in body, cause serious harm to HUMAN HEALTH.Therefore how effectively the heavy metal ion removed in waste water has become the urgent task of current research.
Summary of the invention
the technical problem solved:the object of this invention is to provide one can heavy-metal ion removal effectively, and basic noresidue, has good flocculating effect simultaneously, and the water handled well is re-used by continuation.
technical scheme:a kind of heavy metal containing wastewater treatment agent, comprises with parts by weight: chitosan 2-5 part, ethanol 5-10 part, Tai-Ace S 150 0.5-1 part, sodium hydroxide 5-10 part, calcium hydroxide 5-10 part, iron(ic) chloride 0.5-1 part, ferric sulfate 0.5-1 part, methyl p-hydroxybenzoate 0.1-0.2 part, sodium Diacetate 0.1-0.2 part, hydrogen peroxidase 10 .1-0.2 part, Peracetic Acid 0.05-0.1 part, Sodium Hydrosulphite 0.1-0.2 part, hydrochloric acid 0.5-1 part, water 30-50 part.
Preferred further, described a kind of heavy metal containing wastewater treatment agent, comprises with parts by weight: chitosan 3-4 part, ethanol 6-9 part, Tai-Ace S 150 0.7-0.9 part, sodium hydroxide 7-9 part, calcium hydroxide 7-9 part, iron(ic) chloride 0.6-0.8 part, ferric sulfate 0.6-0.9 part, methyl p-hydroxybenzoate 0.13-0.18 part, sodium Diacetate 0.12-0.18 part, hydrogen peroxidase 10 .12-0.18 part, Peracetic Acid 0.07-0.09 part, Sodium Hydrosulphite 0.13-0.18 part, hydrochloric acid 0.7-0.9 part, water 35-45 part.
The preparation method of above-mentioned heavy metal containing wastewater treatment agent comprises the following steps:
Step 1: chitosan, hydrochloric acid and water are mixed at normal temperatures, uses magnetic stirrer rotating speed to stir 10-20 minute under 500-1000rpm;
Step 2: the mixing of Tai-Ace S 150, sodium hydroxide, calcium hydroxide, iron(ic) chloride, ferric sulfate, sodium Diacetate, hydrogen peroxide, Peracetic Acid and Sodium Hydrosulphite is added in step 1 solution, Heating temperature, to 40-50 DEG C, continues under rotating speed 800-1200rpm to stir 10-20 minute to all dissolving;
Step 3: by add after ethanol and methyl p-hydroxybenzoate mixed dissolution be down to normal temperature step 2 solution in, continue under rotating speed 500-1000rpm stir after 10-20 minute and get final product.
Preferred further, step 1 medium speed is 600-900rpm, and churning time is 13-18 minute.
Preferred further, in step 2, temperature is 45-48 DEG C, and rotating speed is 900-1100rpm, and churning time is 12-17 minute.
Preferred further, step 3 medium speed is 600-900rpm, and churning time is 13-18 minute.
beneficial effect:heavy metal containing wastewater treatment agent of the present invention is all very high to the clearance of each heavy metal ion Cu, Hg, Zn, Ni, all more than 99%, to the clearance of Hg and Ni up to 99.9%, has almost removed clean, not residual, fine to the removal effect of metal ion; Its absorbance is also lower, illustrates that this product has good flocculating effect, and its color and luster is close to transparent.
Embodiment
Embodiment 1
A kind of heavy metal containing wastewater treatment agent, comprises with parts by weight: chitosan 2 parts, ethanol 5 parts, 0.5 part, Tai-Ace S 150,5 parts, sodium hydroxide, 5 parts, calcium hydroxide, 0.5 part, iron(ic) chloride, 0.5 part, ferric sulfate, methyl p-hydroxybenzoate 0.1 part, sodium Diacetate 0.1 part, hydrogen peroxidase 10 .1 part, Peracetic Acid 0.05 part, Sodium Hydrosulphite 0.1 part, hydrochloric acid 0.5 part, 30 parts, water.
The preparation method of above-mentioned heavy metal containing wastewater treatment agent is: first chitosan, hydrochloric acid and water are mixed at normal temperatures, uses magnetic stirrer rotating speed for stirring 10 minutes under 500rpm; Add Tai-Ace S 150, sodium hydroxide, calcium hydroxide, iron(ic) chloride, ferric sulfate, sodium Diacetate, hydrogen peroxide, Peracetic Acid and Sodium Hydrosulphite again, Heating temperature to 40 DEG C, continue stirring under rotating speed 800rpm and dissolve to whole for 10 minutes; Finally add ethanol and methyl p-hydroxybenzoate mixing solutions, under rotating speed 500rpm, continue stirring after 10 minutes and get final product.
Embodiment 2
A kind of heavy metal containing wastewater treatment agent, comprises with parts by weight: chitosan 3 parts, ethanol 6 parts, 0.7 part, Tai-Ace S 150,7 parts, sodium hydroxide, 7 parts, calcium hydroxide, 0.6 part, iron(ic) chloride, 0.6 part, ferric sulfate, methyl p-hydroxybenzoate 0.13 part, sodium Diacetate 0.12 part, hydrogen peroxidase 10 .12 part, Peracetic Acid 0.07 part, Sodium Hydrosulphite 0.13 part, hydrochloric acid 0.7 part, 35 parts, water.
The preparation method of above-mentioned heavy metal containing wastewater treatment agent is: first chitosan, hydrochloric acid and water are mixed at normal temperatures, uses magnetic stirrer rotating speed for stirring 13 minutes under 600rpm; Add Tai-Ace S 150, sodium hydroxide, calcium hydroxide, iron(ic) chloride, ferric sulfate, sodium Diacetate, hydrogen peroxide, Peracetic Acid and Sodium Hydrosulphite again, Heating temperature to 45 DEG C, continue stirring under rotating speed 900rpm and dissolve to whole for 12 minutes; Finally add ethanol and methyl p-hydroxybenzoate mixing solutions, under rotating speed 600rpm, continue stirring after 13 minutes and get final product.
Embodiment 3
A kind of heavy metal containing wastewater treatment agent, comprises with parts by weight: chitosan 3 parts, ethanol 7 parts, 0.7 part, Tai-Ace S 150,8 parts, sodium hydroxide, 8 parts, calcium hydroxide, 0.8 part, iron(ic) chloride, 0.7 part, ferric sulfate, methyl p-hydroxybenzoate 0.15 part, sodium Diacetate 0.15 part, hydrogen peroxidase 10 .15 part, Peracetic Acid 0.07 part, Sodium Hydrosulphite 0.15 part, hydrochloric acid 0.7 part, 40 parts, water.
The preparation method of above-mentioned heavy metal containing wastewater treatment agent is: first chitosan, hydrochloric acid and water are mixed at normal temperatures, uses magnetic stirrer rotating speed for stirring 15 minutes under 750rpm; Add Tai-Ace S 150, sodium hydroxide, calcium hydroxide, iron(ic) chloride, ferric sulfate, sodium Diacetate, hydrogen peroxide, Peracetic Acid and Sodium Hydrosulphite again, Heating temperature to 45 DEG C, continue stirring under rotating speed 1000rpm and dissolve to whole for 15 minutes; Finally add ethanol and methyl p-hydroxybenzoate mixing solutions, under rotating speed 750rpm, continue stirring after 15 minutes and get final product.
Embodiment 4
A kind of heavy metal containing wastewater treatment agent, comprises with parts by weight: chitosan 4 parts, ethanol 9 parts, 0.9 part, Tai-Ace S 150,9 parts, sodium hydroxide, 9 parts, calcium hydroxide, 0.8 part, iron(ic) chloride, 0.9 part, ferric sulfate, methyl p-hydroxybenzoate 0.18 part, sodium Diacetate 0.18 part, hydrogen peroxidase 10 .18 part, Peracetic Acid 0.09 part, Sodium Hydrosulphite 0.18 part, hydrochloric acid 0.9 part, 45 parts, water.
The preparation method of above-mentioned heavy metal containing wastewater treatment agent is: first chitosan, hydrochloric acid and water are mixed at normal temperatures, uses magnetic stirrer rotating speed for stirring 18 minutes under 900rpm; Add Tai-Ace S 150, sodium hydroxide, calcium hydroxide, iron(ic) chloride, ferric sulfate, sodium Diacetate, hydrogen peroxide, Peracetic Acid and Sodium Hydrosulphite again, Heating temperature to 48 DEG C, continue stirring under rotating speed 1100rpm and dissolve to whole for 17 minutes; Finally add ethanol and methyl p-hydroxybenzoate mixing solutions, under rotating speed 900rpm, continue stirring after 18 minutes and get final product.
Embodiment 5
A kind of heavy metal containing wastewater treatment agent, comprises with parts by weight: chitosan 5 parts, ethanol 10 parts, 1 part, Tai-Ace S 150,10 parts, sodium hydroxide, 10 parts, calcium hydroxide, 1 part, iron(ic) chloride, 1 part, ferric sulfate, methyl p-hydroxybenzoate 0.2 part, sodium Diacetate 0.2 part, hydrogen peroxidase 10 .2 part, Peracetic Acid 0.1 part, Sodium Hydrosulphite 0.2 part, hydrochloric acid 1 part, 50 parts, water.
The preparation method of above-mentioned heavy metal containing wastewater treatment agent is: first chitosan, hydrochloric acid and water are mixed at normal temperatures, uses magnetic stirrer rotating speed for stirring 20 minutes under 1000rpm; Add Tai-Ace S 150, sodium hydroxide, calcium hydroxide, iron(ic) chloride, ferric sulfate, sodium Diacetate, hydrogen peroxide, Peracetic Acid and Sodium Hydrosulphite again, Heating temperature to 50 DEG C, continue stirring under rotating speed 1200rpm and dissolve to whole for 20 minutes; Finally add ethanol and methyl p-hydroxybenzoate mixing solutions, under rotating speed 1000rpm, continue stirring after 20 minutes and get final product.
Comparative example 1
The difference of the present embodiment and embodiment 5 is to replace calcium hydroxide with sodium hydroxide.Specifically:
A kind of heavy metal containing wastewater treatment agent, comprises with parts by weight: chitosan 5 parts, ethanol 10 parts, 1 part, Tai-Ace S 150,20 parts, sodium hydroxide, 1 part, iron(ic) chloride, 1 part, ferric sulfate, methyl p-hydroxybenzoate 0.2 part, sodium Diacetate 0.2 part, hydrogen peroxidase 10 .2 part, Peracetic Acid 0.1 part, Sodium Hydrosulphite 0.2 part, hydrochloric acid 1 part, 50 parts, water.
The preparation method of above-mentioned heavy metal containing wastewater treatment agent is: first chitosan, hydrochloric acid and water are mixed at normal temperatures, uses magnetic stirrer rotating speed for stirring 20 minutes under 1000rpm; Add Tai-Ace S 150, sodium hydroxide, iron(ic) chloride, ferric sulfate, sodium Diacetate, hydrogen peroxide, Peracetic Acid and Sodium Hydrosulphite again, Heating temperature to 50 DEG C, continue stirring under rotating speed 1200rpm and dissolve to whole for 20 minutes; Finally add ethanol and methyl p-hydroxybenzoate mixing solutions, under rotating speed 1000rpm, continue stirring after 20 minutes and get final product.
Comparative example 2
The difference of the present embodiment and embodiment 5 is not containing chitosan and hydrochloric acid.Specifically:
A kind of heavy metal containing wastewater treatment agent, comprises with parts by weight: 5 parts, ethanol 10 parts, 1 part, Tai-Ace S 150,10 parts, sodium hydroxide, 10 parts, calcium hydroxide, 1 part, iron(ic) chloride, 1 part, ferric sulfate, methyl p-hydroxybenzoate 0.2 part, sodium Diacetate 0.2 part, hydrogen peroxidase 10 .2 part, Peracetic Acid 0.1 part, Sodium Hydrosulphite 0.2 part, 50 parts, water.
The preparation method of above-mentioned heavy metal containing wastewater treatment agent is: first Tai-Ace S 150, sodium hydroxide, calcium hydroxide, iron(ic) chloride, ferric sulfate, sodium Diacetate, hydrogen peroxide, Peracetic Acid and Sodium Hydrosulphite are mixed, Heating temperature to 50 DEG C, continues stirring and dissolves to whole for 20 minutes under rotating speed 1200rpm; Then add ethanol and methyl p-hydroxybenzoate mixing solutions, under rotating speed 1000rpm, continue stirring after 20 minutes and get final product.
Each embodiment and comparative example are compared, comparing result is as following table 1:
The performance index of table 1 heavy metal containing wastewater treatment agent
| Name of product | Cu 2+Clearance (%) | Hg 2+Clearance (%) | Zn 2+Clearance (%) | Ni 2+Clearance (%) | Absorbancy |
| Embodiment 1 | 99.4 | 99.7 | 99.0 | 99.8 | 0.3507 |
| Embodiment 2 | 99.5 | 99.7 | 99.3 | 99.8 | 0.3479 |
| Embodiment 3 | 99.6 | 99.8 | 99.4 | 99.9 | 0.3452 |
| Embodiment 4 | 99.8 | 99.9 | 99.8 | 99.9 | 0.3419 |
| Embodiment 5 | 99.7 | 99.8 | 99.6 | 99.9 | 0.3433 |
| Reference examples 1 | 93.2 | 92.7 | 93.6 | 93.5 | 0.3906 |
| Reference examples 2 | 94.9 | 95.3 | 95.6 | 95.8 | 0.4238 |
As known from Table 1, embodiment 1-5 is very high to the clearance of metal ion Cu, Hg, Zn, Ni, all more than 99%, to the clearance of Hg and Ni up to 99.9%, does not almost remain, fine to the removal effect of metal ion; Its absorbancy is also lower, has good flocculating effect, and color and luster is close to transparent.Compare with comparative example 1, find that the clearance of comparative example 1 to each heavy metal ion all reduces, absorbance also increases, and illustrates that the effect removed by sodium hydroxide and the composite heavy metal of calcium hydroxide is better than single use sodium hydroxide.Compare with comparative example 2, find that the absorbance of comparative example 2 obviously rises, the clearance of heavy metal ion also declines to some extent, illustrates that chitosan and hydrochloric acid can increase flocculating effect of the present invention greatly, improves the quality of this product.Best with the property indices of embodiment 4 in the present invention, be optimum embodiment of the present invention.
Claims (6)
1. a heavy metal containing wastewater treatment agent, is characterized in that: comprise with parts by weight: chitosan 2-5 part, ethanol 5-10 part, Tai-Ace S 150 0.5-1 part, sodium hydroxide 5-10 part, calcium hydroxide 5-10 part, iron(ic) chloride 0.5-1 part, ferric sulfate 0.5-1 part, methyl p-hydroxybenzoate 0.1-0.2 part, sodium Diacetate 0.1-0.2 part, hydrogen peroxidase 10 .1-0.2 part, Peracetic Acid 0.05-0.1 part, Sodium Hydrosulphite 0.1-0.2 part, hydrochloric acid 0.5-1 part, water 30-50 part.
2. a kind of heavy metal containing wastewater treatment agent according to claim 1, is characterized in that: comprise with parts by weight: chitosan 3-4 part, ethanol 6-9 part, Tai-Ace S 150 0.7-0.9 part, sodium hydroxide 7-9 part, calcium hydroxide 7-9 part, iron(ic) chloride 0.6-0.8 part, ferric sulfate 0.6-0.9 part, methyl p-hydroxybenzoate 0.13-0.18 part, sodium Diacetate 0.12-0.18 part, hydrogen peroxidase 10 .12-0.18 part, Peracetic Acid 0.07-0.09 part, Sodium Hydrosulphite 0.13-0.18 part, hydrochloric acid 0.7-0.9 part, water 35-45 part.
3. the preparation method of a kind of heavy metal containing wastewater treatment agent described in any one of claim 1 to 2, is characterized in that: comprise the following steps:
Step 1: chitosan, hydrochloric acid and water are mixed at normal temperatures, uses magnetic stirrer rotating speed to stir 10-20 minute under 500-1000rpm;
Step 2: the mixing of Tai-Ace S 150, sodium hydroxide, calcium hydroxide, iron(ic) chloride, ferric sulfate, sodium Diacetate, hydrogen peroxide, Peracetic Acid and Sodium Hydrosulphite is added in step 1 solution, Heating temperature, to 40-50 DEG C, continues under rotating speed 800-1200rpm to stir 10-20 minute to all dissolving;
Step 3: by add after ethanol and methyl p-hydroxybenzoate mixed dissolution be down to normal temperature step 2 solution in, continue under rotating speed 500-1000rpm stir after 10-20 minute and get final product.
4. the preparation method of a kind of heavy metal containing wastewater treatment agent according to claim 3, it is characterized in that: described step 1 medium speed is 600-900rpm, churning time is 13-18 minute.
5. the preparation method of a kind of heavy metal containing wastewater treatment agent according to claim 3, it is characterized in that: in described step 2, temperature is 45-48 DEG C, rotating speed is 900-1100rpm, and churning time is 12-17 minute.
6. the preparation method of a kind of heavy metal containing wastewater treatment agent according to claim 3, it is characterized in that: described step 3 medium speed is 600-900rpm, churning time is 13-18 minute.
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| CN201610005098.9A CN105540792A (en) | 2016-01-07 | 2016-01-07 | Heavy metal wastewater treating agent and preparation method thereof |
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| CN201610005098.9A CN105540792A (en) | 2016-01-07 | 2016-01-07 | Heavy metal wastewater treating agent and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858979A (en) * | 2016-06-24 | 2016-08-17 | 李嘉 | Beneficiation wastewater treatment method |
| CN107082499A (en) * | 2017-06-08 | 2017-08-22 | 张日龙 | A kind of heavy metal containing wastewater treatment agent |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193339A (en) * | 2013-04-08 | 2013-07-10 | 中南大学 | Polymetallic-ore-dressing wastewater coagulating sedimentation device and method |
| CN104086030A (en) * | 2014-07-24 | 2014-10-08 | 江苏贝斯特水处理科技有限公司 | Method for treating pickling wastewater in iron and steel industry |
| CN104118921A (en) * | 2014-08-20 | 2014-10-29 | 江西省恩皓环保有限公司 | Heavy metal sewage treatment agent |
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2016
- 2016-01-07 CN CN201610005098.9A patent/CN105540792A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193339A (en) * | 2013-04-08 | 2013-07-10 | 中南大学 | Polymetallic-ore-dressing wastewater coagulating sedimentation device and method |
| CN104086030A (en) * | 2014-07-24 | 2014-10-08 | 江苏贝斯特水处理科技有限公司 | Method for treating pickling wastewater in iron and steel industry |
| CN104118921A (en) * | 2014-08-20 | 2014-10-29 | 江西省恩皓环保有限公司 | Heavy metal sewage treatment agent |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858979A (en) * | 2016-06-24 | 2016-08-17 | 李嘉 | Beneficiation wastewater treatment method |
| CN107082499A (en) * | 2017-06-08 | 2017-08-22 | 张日龙 | A kind of heavy metal containing wastewater treatment agent |
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Application publication date: 20160504 |