CN103466833A - Treatment method of beryllium-containing sewage - Google Patents
Treatment method of beryllium-containing sewage Download PDFInfo
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- CN103466833A CN103466833A CN201310407009XA CN201310407009A CN103466833A CN 103466833 A CN103466833 A CN 103466833A CN 201310407009X A CN201310407009X A CN 201310407009XA CN 201310407009 A CN201310407009 A CN 201310407009A CN 103466833 A CN103466833 A CN 103466833A
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Abstract
The invention relates to a treatment method of beryllium-containing sewage. The method is characterized by firstly neutralizing the beryllium-containing sewage with alkali, adjusting the pH value to be 8.5-11, then adding polymeric aluminium to precipitate flocs and treating the supernatant and bottom precipitate after layering respectively after standing for 2-4 hours. In the treatment method, the free settling principle is adopted and the content of beryllium in the sewage is reduced to the minimum by neutralizing the sewage and precipitating the flocs so that the sewage reaches the national discharge standard (<=5mu g/L). The treatment method has the beneficial effects that the treatment method has the advantages of simple process, few used materials and low cost and the produced waste residues are less and are convenient to treat, so that the treatment method is suitable for treating sewage in high flow.
Description
Technical field
The present invention relates to the nonferrous production technical field, particularly relate to a kind for the treatment of process containing beryllium sewage.
Background technology
Can produce beryllium-containing wastewater in the production process of beryllium, although in waste water, the content of beryllium is little, its toxicity is but very large, enters in the organs such as lung, liver, kidney of human body and can cause chronic poisoning, is detrimental to health.
At present, the treatment process of beryllium-containing wastewater has chemical precipitation method, ion exchange method, absorption method, electrolytic process etc., and these method costs are higher.Chinese patent " method for the treatment of beryllium-containing wastewater with biological agent " (application number: 2008101438643) provide a kind of method of utilizing treating beryllium-containing wastewater with biological agent, the method is first neutralized beryllium-containing wastewater with buck, then with biotechnological formulations such as thiobacillus ferrooxidant or thiobacillus thiooxidans, reacted, add afterwards the milk of lime reaction that is hydrolyzed, after hydrolysis reaction completes, add the flocculation agents such as polyacrylamide, bodied ferric sulfate or polymerize aluminum chloride to carry out the pulp water separation.Aforesaid method exists: 1. processing cost is high; 2. the body refuse produced is too many; 3. biotechnological formulation is cultivated and prepares loaded down with trivial details, is not suitable for the big yield sewage disposal; 4. required processing material is various.
Summary of the invention
The object of the invention is to overcome above-mentioned defect of the prior art, a kind of effective reduction processing cost is provided, reduce waste residue and generate, technique is simple, the treatment process containing beryllium sewage that treatment effect is good.
The technical scheme adopted for achieving the above object is:
A kind for the treatment of process containing beryllium sewage, it is characterized in that: at first will with alkali, neutralize containing beryllium sewage, the pH value is adjusted to 8.5-11, then adds the polymerize aluminum chloride flocculation sediment, standing 2-4 hour, after the supernatant liquor of layering and bottom settlings thing are processed respectively.
Described alkali is sodium hydroxide or potassium hydroxide, and its concentration is 40g/L---100g/L.
The add-on of described polymerize aluminum chloride is 75-100mg/L sewage.
The concentration of described polymerize aluminum chloride is 25mg/L.
Described supernatant liquor flow to clean water basin after adopting mechanical filter, detects beryllium content in clean water basin≤5ug/L discharge, is greater than 5ug/L and is back in the beryllium-containing wastewater pond and re-starts processing.
During described mechanical filter, keep filtration tank water-in pressure to be no more than 0.14MPa.
During described mechanical filter, avoid the bottom settlings thing to enter in filtration tank.
The dehydration of described bottom settlings thing, concentrated formation after the clod that water ratio is very low are transported to the Special slag storehouse and bury and get final product.
The present invention adopts the free setting principle, by sewage is neutralized and coagulating sedimentation, thereby the beryllium content in sewage is down to minimum, makes it reach discharging standards (≤5ug/L).Treatment process containing beryllium sewage of the present invention, technique is simple, and material therefor is few, and cost is low, and the waste residue produced is few, is convenient to process, and is applicable to the processing of big yield sewage.
The accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention.
Embodiment
1. rise in subsider through sludge pump containing beryllium sewage, in this process, at first add sodium hydroxide or potassium hydroxide (concentration is 40g/L-100g/L) to be neutralized, the sewage PH value after neutralization is controlled between 8.5-11.
2. in the lifting sewage process, then add polymerize aluminum chloride, concentration is 25mg/L, and the add-on of polymerize aluminum chloride is 75-100mg/L sewage.Now, after beryllium ion and hydroxide ion form the beryllium hydroxide small-particle in sewage, by the coagulation that carries out of polymerize aluminum chloride, form large suede body particle.For beryllium hydroxide is better precipitated, the solution after neutralization flocculation is wanted quiescent setting, and it is a lot of to affect the factor of sedimentation effect, as sedimentation speed, former aqueous nature, pH value, chemical feeding quantity, temperature etc.What in actually operating, often control is sedimentation time, and sedimentation time is longer, and sedimentation effect is better.
3. allow the sewage of processing, react in subsider, quiescent setting 2-4 hour, produce layering, comprises upper strata supernatant liquor and bottom settlings thing.
4. the upper strata supernatant liquor after layering is extracted out, mechanical filter, during filtration, the water-in pressure of machinery filtration tank can not surpass 0.14MPa.Filter and note observing the subsider liquid level, must not allow subsider bottom settlings layer enter in the mechanical filter tower.Water after detect filtering, in water, beryllium content≤5ug/L, meet discharging standards, directly discharges beryllium content in water > 5ug/L is back in beryllium-containing wastewater (former pond) and re-starts processing.
5, the bottom settlings layer after the precipitation, by the outlet at bottom of subsider, rises to mud in whizzer and dewaters with pump, forms the very low clod of water content after dehydration, finally by the slag car, transports clod to the slag storehouse and buries.
Following table is to adopt the inventive method operation gained detected result:
Annotate: country's discharge mark beryllium standard is 5ug/L.
Claims (8)
1. the treatment process containing beryllium sewage, it is characterized in that: at first will with alkali, neutralize containing beryllium sewage, the pH value is adjusted to 8.5-11, then adds the polymerize aluminum chloride flocculation sediment, standing 2-4 hour, after the supernatant liquor of layering and bottom settlings thing are processed respectively.
2. the treatment process containing beryllium sewage of stating according to claim 1, it is characterized in that: described alkali is sodium hydroxide or potassium hydroxide, its concentration is 40g/L---100g/L.
3. the treatment process containing beryllium sewage of stating according to claim 1, it is characterized in that: the add-on of described polymerize aluminum chloride is 75-100mg/L sewage.
4. the treatment process containing beryllium sewage of stating according to claim 1 or 3, it is characterized in that: the concentration of described polymerize aluminum chloride is 25mg/L.
5. according to claim 1, state containing the treatment process of beryllium sewage, it is characterized in that: described supernatant liquor flow to clean water basin after adopting mechanical filter, detects beryllium content in clean water basin≤5ug/L discharge, is greater than 5ug/L and is back in the beryllium-containing wastewater pond and re-starts processing.
6. the treatment process containing beryllium sewage of stating according to claim 5 is characterized in that: during described mechanical filter, keep filtration tank water-in pressure to be no more than 0.14MPa.
7. the treatment process containing beryllium sewage of stating according to claim 5 or 6, is characterized in that: during described mechanical filter, avoid the bottom settlings thing to enter in filtration tank.
8. according to claim 1, state containing the treatment process of beryllium sewage, it is characterized in that: described bottom settlings thing dehydration, concentrated formation after the clod that water ratio is very low are transported to the Special slag storehouse and bury and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310407009XA CN103466833A (en) | 2013-09-10 | 2013-09-10 | Treatment method of beryllium-containing sewage |
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| CN201310407009XA CN103466833A (en) | 2013-09-10 | 2013-09-10 | Treatment method of beryllium-containing sewage |
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| CN103466833A true CN103466833A (en) | 2013-12-25 |
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| CN201310407009XA Pending CN103466833A (en) | 2013-09-10 | 2013-09-10 | Treatment method of beryllium-containing sewage |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115887A (en) * | 2016-08-03 | 2016-11-16 | 许祚员 | A kind of beryllium sewage-treating agent and preparation method thereof |
| WO2017143806A1 (en) * | 2016-02-26 | 2017-08-31 | 盐城市华鸥实业有限公司 | Glass device for recovering and multilevel processing chemical waste water |
| CN108178371A (en) * | 2017-12-28 | 2018-06-19 | 西北稀有金属材料研究院宁夏有限公司 | A kind of method for removing beryllium and copper simultaneously in sewage treatment process containing beryllium copper |
| CN110304891A (en) * | 2019-06-25 | 2019-10-08 | 江西保太有色金属集团有限公司 | A kind of environment-friendly baking-free bricks and preparation method thereof |
| CN110330038A (en) * | 2019-04-10 | 2019-10-15 | 水口山有色金属有限责任公司 | A method of the harmless treatment of alum containing beryllium |
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| US6428705B1 (en) * | 1996-11-26 | 2002-08-06 | Microbar Incorporated | Process and apparatus for high flow and low pressure impurity removal |
| CN101732966A (en) * | 2009-12-10 | 2010-06-16 | 新余市长城铜产品开发有限公司 | Method and device for wet treatment of beryllium-containing waste gas |
| CN102145964A (en) * | 2011-03-31 | 2011-08-10 | 北京大学 | Method for treating high-ammonia-nitrogen beryllium-containing waste water |
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2013
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Patent Citations (3)
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| US6428705B1 (en) * | 1996-11-26 | 2002-08-06 | Microbar Incorporated | Process and apparatus for high flow and low pressure impurity removal |
| CN101732966A (en) * | 2009-12-10 | 2010-06-16 | 新余市长城铜产品开发有限公司 | Method and device for wet treatment of beryllium-containing waste gas |
| CN102145964A (en) * | 2011-03-31 | 2011-08-10 | 北京大学 | Method for treating high-ammonia-nitrogen beryllium-containing waste water |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017143806A1 (en) * | 2016-02-26 | 2017-08-31 | 盐城市华鸥实业有限公司 | Glass device for recovering and multilevel processing chemical waste water |
| CN106115887A (en) * | 2016-08-03 | 2016-11-16 | 许祚员 | A kind of beryllium sewage-treating agent and preparation method thereof |
| CN108178371A (en) * | 2017-12-28 | 2018-06-19 | 西北稀有金属材料研究院宁夏有限公司 | A kind of method for removing beryllium and copper simultaneously in sewage treatment process containing beryllium copper |
| CN110330038A (en) * | 2019-04-10 | 2019-10-15 | 水口山有色金属有限责任公司 | A method of the harmless treatment of alum containing beryllium |
| CN110330038B (en) * | 2019-04-10 | 2022-04-15 | 水口山有色金属有限责任公司 | Harmless treatment method for beryllium-containing aluminum ammonium sulfate |
| CN110304891A (en) * | 2019-06-25 | 2019-10-08 | 江西保太有色金属集团有限公司 | A kind of environment-friendly baking-free bricks and preparation method thereof |
| CN110304891B (en) * | 2019-06-25 | 2021-11-02 | 江西保太有色金属集团有限公司 | Environment-friendly baking-free brick and preparation method thereof |
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Application publication date: 20131225 |