CN102976466A - Compound barium remover for treating baric wastewater - Google Patents
Compound barium remover for treating baric wastewater Download PDFInfo
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- CN102976466A CN102976466A CN2012105388847A CN201210538884A CN102976466A CN 102976466 A CN102976466 A CN 102976466A CN 2012105388847 A CN2012105388847 A CN 2012105388847A CN 201210538884 A CN201210538884 A CN 201210538884A CN 102976466 A CN102976466 A CN 102976466A
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Abstract
The invention discloses a compound barium remover for treating baric wastewater, belonging to the field of sewage treatment in environmental protection. The compound barium remover for treating baric wastewater is compounded from organic acids and inorganic substances, wherein the organic acids comprise in percentage by weight 20-80% of citric acid, 20-80% of oxaloacetic acid, 20-80% of cyclopentanodiacid and 20-80% of malic acid; and the inorganic substances comprise 10-40% of sodium carbonate, 10-40% of sodium sulfate, 10-40% of zinc sulfide and 10-40% of sodium dihydrogen phosphate. The compound barium remover is added into baric wastewater; after stirring, the wastewater is subjected to floatation; the residue layer floating on the wastewater surface is scraped away with a slag scraper; and the effluent water can conform to national discharge standard Grade 1. The invention has the characteristics of simple technical process, low operating cost, no sludge generation, favorable barium removal effect and the like.
Description
Technical field
The present invention relates to a kind of compound barium removal agent of processing baric waste water, particularly process the waste water of barium concentration in 10～100mg/L scope, belong to field of waste water treatment in the environment protection.
Background technology
The discharging of baric waste water has serious harm to HUMAN HEALTH and industrial or agricultural activity, have the harm such as persistence, toxicity be large, seriously polluted, in case can not be biodegradable behind the entered environment, great majority participate in the food chain circulation, and finally in vivo accumulation, destroy organism normal physiological Metabolic activity, be detrimental to health.Along with the day by day increase of the mankind to activities in production such as the exploitation of heavy metal, smelting, processing, the heavy metal wastewater thereby of generation is all greatly to increase in quantity or on the kind, has caused serious environmental pollution and the wasting of resources.Therefore the improvement of baric waste water is still a problems to be solved in world's field of Environment Protection.
At present, process the difference of means both at home and abroad according to it, can be divided into physico-chemical process and biological process, the form that exists in solution according to barium is different, treatment process commonly used is divided two classes: the first kind is to make the barium ion that is dissolved state in the waste water change insoluble heavy metal compound into, remove from waste water through precipitation or floating upper method, concrete grammar has chemical precipitation method, ion exchange method, absorption method etc.; Equations of The Second Kind is heavy metal in the waste water is concentrated under the condition that does not change its chemical form and to separate, and concrete grammar has reverse osmosis method, electroosmose process, evaporation concentration method.The problems such as these class methods can effectively be removed the zinc in the waste water, but it is large all to exist investment, and working cost is high, and the shipwreck after the improvement is with up to standard, and sludge yield is large.
Summary of the invention
The objective of the invention is: for overcoming the deficiencies in the prior art, a kind of compound barium removal agent of processing baric waste water is provided, this compound barium removal agent technical process is simple, running cost is low, obvious processing effect, residual barium ion concentration is lower than 0.3mg/L in the water after primary treatment, is lower than the first discharge standard of national regulation; Produce without precipitation, can not cause secondary pollution, and the equal recoverable of the metal oxide in water outlet and the waste water.
The technical solution used in the present invention is: a kind of compound barium removal agent of processing baric waste water is by organic acid and inorganics is composite forms, and described organic acid is one or both in citric acid, oxaloacetic acid, ring pentanedioic acid, the oxysuccinic acid; Described inorganics is two or more in yellow soda ash, sodium sulfate, zinc sulphide, the SODIUM PHOSPHATE, MONOBASIC, by its mass ratio, described organic acid is citric acid 20%～80%, oxaloacetic acid 20%～80%, ring pentanedioic acid 20%～80%, oxysuccinic acid 20%～80%; Described inorganics is yellow soda ash 10%～40%, sodium sulfate 10%～40%, zinc sulphide 10%～40%, SODIUM PHOSPHATE, MONOBASIC 10%～40%.
By accounting for compound barium removal agent total mass per-cent, citric acid 80%, yellow soda ash 10%, sodium sulfate 10% are made into compound barium removal agent.
By accounting for compound barium removal agent total mass per-cent, oxaloacetic acid 45%, yellow soda ash 15%, sodium sulfate 20%, zinc sulphide 20% are made into compound barium removal agent.
By accounting for compound barium removal agent total mass per-cent, ring pentanedioic acid 30%, oxysuccinic acid 30%, zinc sulphide 15%, SODIUM PHOSPHATE, MONOBASIC 25% are made into compound barium removal agent.
By accounting for compound barium removal agent total mass per-cent, oxysuccinic acid 50%, SODIUM PHOSPHATE, MONOBASIC 15%, zinc sulphide 15%, sodium sulfate 20% are made into compound barium removal agent.
By accounting for compound barium removal agent total mass per-cent, ring pentanedioic acid 55%, oxaloacetic acid 25%, SODIUM PHOSPHATE, MONOBASIC 10%, yellow soda ash 10% are made into compound barium removal agent.
Application method of the present invention is: organism and the composite barium removal agent that forms of inorganics are joined in 10～100mg/L baric waste water, the amount that adds is 5～20ppm, with acid the pH value is adjusted to 4.0～6.0, stir after 10～30min, the waste water of gained carries out air supporting again to be processed, at last one deck residue that floats over the waste water surface is struck off with slag scraper, water outlet can reach national grade one discharge standard.Residual barium ion concentration is lower than the first discharge standard of national regulation less than 0.3mg/L in the water after primary treatment, and clearance is up to more than 99%.
The invention has the beneficial effects as follows:
(1) technical process is simple, and running cost is low;
(2) obvious processing effect, residual barium ion concentration is lower than 0.3mg/L in the water after primary treatment, is lower than the first discharge standard of national regulation;
(3) produce without precipitation, can not cause secondary pollution, and the equal recoverable of the metal oxide in water outlet and the waste water.
Embodiment
Example 1: get citric acid 80%, yellow soda ash 10%, sodium sulfate 10% and be made into compound barium removal agent, above-mentioned barium removal agent is joined in the 20mg/L baric waste water, the amount that adds is 5ppm, with acid the pH value is adjusted to 4.0, stir after the 10min, the waste water of gained carries out air supporting again to be processed, and at last one deck residue that floats over the waste water surface is struck off with slag scraper, and water outlet can reach national grade one discharge standard.Residual barium ion concentration is 0.2mg/L in the water after primary treatment, is lower than the first discharge standard of national regulation, and clearance is up to more than 99%.
Example 2: get oxaloacetic acid 45%, yellow soda ash 15%, sodium sulfate 20%, zinc sulphide 20% and be made into compound barium removal agent.Above-mentioned barium removal agent is joined in the 50mg/L baric waste water, the amount that adds is 10ppm, with acid the pH value is adjusted to 5.0, stir after the 20min, the waste water of gained carries out air supporting again to be processed, at last one deck residue that floats over the waste water surface is struck off with slag scraper, water outlet can reach national grade one discharge standard.Residual barium ion concentration is 0.1mg/L in the water after primary treatment, is lower than the first discharge standard of national regulation, and clearance is up to more than 99.8%.
Example 3: get ring pentanedioic acid 30%, oxysuccinic acid 30%, zinc sulphide 15%, SODIUM PHOSPHATE, MONOBASIC 25% is made into compound barium removal agent.Above-mentioned barium removal agent is joined in the 80mg/L baric waste water, the amount that adds is 15ppm, with acid the pH value is adjusted to 5.5, stir after the 25min, the waste water of gained carries out air supporting again to be processed, at last one deck residue that floats over the waste water surface is struck off with slag scraper, water outlet can reach national grade one discharge standard.Residual barium ion concentration is 0.08mg/L in the water after primary treatment, is lower than the first discharge standard of national regulation, and clearance is up to more than 99.9%.
Example 4: oxysuccinic acid 50%, SODIUM PHOSPHATE, MONOBASIC 15%, zinc sulphide 15%, sodium sulfate 20% are made into compound barium removal agent.Above-mentioned barium removal agent is joined in the 100mg/L baric waste water, the amount that adds is 20ppm, with acid the pH value is adjusted to 6.0, stir after the 30min, the waste water of gained carries out air supporting again to be processed, at last one deck residue that floats over the waste water surface is struck off with slag scraper, water outlet can reach national grade one discharge standard.Residual barium ion concentration is 0.05mg/L in the water after primary treatment, is lower than the first discharge standard of national regulation, and clearance is up to more than 99.95%.
Claims (6)
1. compound barium removal agent of processing baric waste water is characterized in that: this compound barium removal agent is by organic acid and inorganics is composite forms, and described organic acid is one or both in citric acid, oxaloacetic acid, ring pentanedioic acid, the oxysuccinic acid; Described inorganics is two or more in yellow soda ash, sodium sulfate, zinc sulphide, the SODIUM PHOSPHATE, MONOBASIC, by its mass ratio, described organic acid is citric acid 20%～80%, oxaloacetic acid 20%～80%, ring pentanedioic acid 20%～80%, oxysuccinic acid 20%～80%; Described inorganics is yellow soda ash 10%～40%, sodium sulfate 10%～40%, zinc sulphide 10%～40%, SODIUM PHOSPHATE, MONOBASIC 10%～40%.
2. a kind of compound barium removal agent of processing baric waste water according to claim 1, it is characterized in that: by accounting for compound barium removal agent total mass per-cent, citric acid 80%, yellow soda ash 10%, sodium sulfate 10% are made into compound barium removal agent.
3. a kind of compound barium removal agent of processing baric waste water according to claim 1, it is characterized in that: by accounting for compound barium removal agent total mass per-cent, oxaloacetic acid 45%, yellow soda ash 15%, sodium sulfate 20%, zinc sulphide 20% are made into compound barium removal agent.
4. a kind of compound barium removal agent of processing baric waste water according to claim 1 is characterized in that: by accounting for compound barium removal agent total mass per-cent, ring pentanedioic acid 30%, oxysuccinic acid 30%, zinc sulphide 15%, SODIUM PHOSPHATE, MONOBASIC 25% are made into compound barium removal agent.
5. a kind of compound barium removal agent of processing baric waste water according to claim 1, it is characterized in that: by accounting for compound barium removal agent total mass per-cent, oxysuccinic acid 50%, SODIUM PHOSPHATE, MONOBASIC 15%, zinc sulphide 15%, sodium sulfate 20% are made into compound barium removal agent.
6. a kind of compound barium removal agent of processing baric waste water according to claim 1, it is characterized in that: by accounting for compound barium removal agent total mass per-cent, ring pentanedioic acid 55%, oxaloacetic acid 25%, SODIUM PHOSPHATE, MONOBASIC 10%, yellow soda ash 10% are made into compound barium removal agent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105388847A CN102976466A (en) | 2012-12-11 | 2012-12-11 | Compound barium remover for treating baric wastewater |
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| CN2012105388847A CN102976466A (en) | 2012-12-11 | 2012-12-11 | Compound barium remover for treating baric wastewater |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1740099A (en) * | 2004-08-25 | 2006-03-01 | 长彰德 | Coagulant for cleaning polluted water or contaminated water |
| CN101357798A (en) * | 2007-07-31 | 2009-02-04 | 深圳市邦友通科技有限公司 | Heavy metal wastewater purificant |
| CN101497468A (en) * | 2008-01-28 | 2009-08-05 | 铁克股份有限公司 | Flocculating agent |
| WO2011137585A1 (en) * | 2010-05-05 | 2011-11-10 | Empire Technology Development Llc | Method for removing metals from a metal-containing solution by using legume plants |
| CN102464397A (en) * | 2011-10-20 | 2012-05-23 | 常州亚环环保科技有限公司 | Composite zinc removing agent for treating wastewater containing zinc |
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2012
- 2012-12-11 CN CN2012105388847A patent/CN102976466A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1740099A (en) * | 2004-08-25 | 2006-03-01 | 长彰德 | Coagulant for cleaning polluted water or contaminated water |
| CN101357798A (en) * | 2007-07-31 | 2009-02-04 | 深圳市邦友通科技有限公司 | Heavy metal wastewater purificant |
| CN101497468A (en) * | 2008-01-28 | 2009-08-05 | 铁克股份有限公司 | Flocculating agent |
| WO2011137585A1 (en) * | 2010-05-05 | 2011-11-10 | Empire Technology Development Llc | Method for removing metals from a metal-containing solution by using legume plants |
| CN102464397A (en) * | 2011-10-20 | 2012-05-23 | 常州亚环环保科技有限公司 | Composite zinc removing agent for treating wastewater containing zinc |
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Application publication date: 20130320 |