CN101381180A - High concentrated organic wastewater treatment method using microwave circulation catalysis - Google Patents
High concentrated organic wastewater treatment method using microwave circulation catalysis Download PDFInfo
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- CN101381180A CN101381180A CNA2008101578437A CN200810157843A CN101381180A CN 101381180 A CN101381180 A CN 101381180A CN A2008101578437 A CNA2008101578437 A CN A2008101578437A CN 200810157843 A CN200810157843 A CN 200810157843A CN 101381180 A CN101381180 A CN 101381180A
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- 238000006555 catalytic reaction Methods 0.000 title claims abstract description 45
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 16
- 239000002351 wastewater Substances 0.000 claims abstract description 81
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 230000009471 action Effects 0.000 claims abstract description 7
- 239000011949 solid catalyst Substances 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims description 30
- 238000001179 sorption measurement Methods 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 230000015556 catabolic process Effects 0.000 claims description 9
- 238000006731 degradation reaction Methods 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 238000002203 pretreatment Methods 0.000 claims description 5
- 230000008929 regeneration Effects 0.000 claims description 5
- 238000011069 regeneration method Methods 0.000 claims description 5
- 238000010504 bond cleavage reaction Methods 0.000 claims description 4
- 238000005336 cracking Methods 0.000 claims description 4
- 239000000706 filtrate Substances 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- 230000007017 scission Effects 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 2
- 150000002894 organic compounds Chemical class 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 5
- -1 pharmaceutical Substances 0.000 abstract description 3
- 239000005416 organic matter Substances 0.000 abstract 3
- 125000004122 cyclic group Chemical group 0.000 abstract 2
- 239000000575 pesticide Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 4
- 239000010815 organic waste Substances 0.000 description 4
- 239000003905 agrochemical Substances 0.000 description 3
- 229910017053 inorganic salt Inorganic materials 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000007233 catalytic pyrolysis Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The invention provides a method for treating high-concentration organic wastewater through microwave cyclic catalysis. The method uses a special composite solid catalyst (HFC) and microwaves to act on high-concentration wastewater synergically so as to catalytically crack the H-O, C-H and H-H bonds of organic matter; under the action of the microwaves, the H-containing bonds in the organic matter are rapidly broken so as to crack the macromolecular organic matter into small molecular matter; and through cyclic catalysis treatment, the COD of the wastewater is progressively changed and lowered, and the B/C value of the wastewater is raised. The method is a novel wastewater treatment technique which is high in efficiency, low in consumption and free from secondary pollution, and solves the technical problem of treating high-concentration and high-salinity organic wastewater in pesticide, pharmaceutical, chemical and other industries.
Description
Technical field
The present invention relates to handle the method for high concentrated organic wastewater, especially a kind of high concentrated organic wastewater treatment method using microwave circulation catalysis.
Background technology
The microwave wastewater processing technology is the wastewater treatment new technology of a kind of efficient, low consumption, non-secondary pollution, and this technology has developed rapidly in China and come.He has solved an improvement difficult problem that is difficult to administer before large quantities of or administer the high wastewater from chemical industry of investment, working cost, makes the improvement of high concentrated organic wastewater occur once breaking through.But simple microwave treatment can not solve some to the unconspicuous special organic waste water of microwave action, and as the waste water of agricultural chemicals, pharmaceutical industry, regulation effect is not good.
Summary of the invention
The invention provides a kind of high concentrated organic wastewater treatment method using microwave circulation catalysis, composite solid catalyzer (HFC) with special use, act on highly difficult waste water with microwave cooperating, play the organic H-O of catalytic pyrolysis, C-H, H-H key, under microwave action, interrupt rapidly and contain the H key in the organism, make larger molecular organics be cracked into small-molecule substance, through the circulation catalytic treatment, progressively change and reduce the COD of waste water, improve the B/C value.Technical process of the present invention is:
A, microwave catalysis: high concentrated organic wastewater is sent out through microwave catalysis and is answered device, microwave catalysis reactor internal fixing has solid catalyst to contact with waste water, under the microwave action of certain wavelength, power, carry out the microwave catalysis scission reaction, make organism in the waste water under the synergy of microwave and catalyzer, the organism of macromole difficult degradation is cracked into the small organic molecule of easy biochemistry, some organism after cracking with water in the ionic reaction of opposite charge generate inorganic salt or organic salt, accompanied by precipitation or gas produce.Thereby reduced the COD of waste water rapidly, changed the B/C value (improving 0.1-0.3) of waste water, made waste water both reduce COD, improved biodegradability again, but the high concentrated organic wastewater of original difficult degradation is become biochemical property biochemical waste water preferably.
B, composite absorption filtering: the waste water behind the microwave catalysis is through the composite absorption filtering device, with the Filtration Adsorption in addition of the organism in the waste water, because the part macromole behind the microwave catalysis, become small organic molecule or organic salt, change these organic absorption properties, made the bad organism of original adsorption effect be adsorbed the effective adsorption filtration of filtrate in the strainer, thereby reduced the organism and the part salt of waste water rapidly, reduce the COD in the waste water, improved the B/C value.
C, circulation microwave catalysis, adsorption filtration: according to the characteristics of waste water and the complexity of wastewater treatment, waste water after the adsorption filtration is handled through one or many microwave catalysis, adsorption filtration again, be exactly circulation or ladder microwave catalysis, adsorption filtration, the COD of waste water is progressively descended, till reaching the biochemical system requirement or reaching direct emission standard.
Remarkable advantage of the present invention is: by the microwave energy penetration, excite the catalysis of solid catalyst activity in the waste water, rapidly the difficult degradation larger molecular organics in the waste water is degraded to small organic molecule, generate the inorganic salt precipitation with the reaction of inorganics in the water and emit with gas, by circulation catalysis, progressively reduce the COD of waste water, improve wastewater biodegradability, be the wastewater treatment new technology of a kind of efficient, low consumption, non-secondary pollution, solved the high density of industries such as agricultural chemicals, pharmacy, chemical industry, the treatment technology difficult problem of organic high-salinity wastewater.
Description of drawings
Figure of description is the process flow sheet of one embodiment of the invention.
1. high concentrated organic wastewaters among the figure; 2.The equalizing tank pre-treatment; 3. microwave catalysis; 4. composite absorption filtering; 5. biochemical treatment; 6. clean water basin; 7. micro wave regeneration well heater
Embodiment
One embodiment of the present of invention are to handle the high concentrated organic wastewater of insecticide factory, and its technical process is:
High concentrated organic wastewater (1) at first enters equalizing tank pre-treatment (2) through grid: the stripping effect of playing the stabilizing water quality water yield and removing part low-boiling-point organic compound in the waste water, can carry out autotelicly removing or cracking to some objectionable impurities in the waste water.When the more stable cleaning of organic waste water, can omit pre-treatment (2) step, promptly organic waste water (1) directly enters next step process (3).
The waste water that inherent regulation pond pre-treatment (2) comes, or organic waste water (1) directly enters microwave catalysis (3), in the microwave catalysis reactor, solid catalyst is arranged, directly contact with waste water, under the microwave action of certain wavelength, power, carry out the microwave catalysis scission reaction, make organism in the waste water under the synergy of microwave and catalyzer, the organism of macromole difficult degradation is cracked into the small organic molecule of easy biochemistry, some organism after cracking with water in the ionic reaction of opposite charge generate inorganic salt or organic salt, accompanied by precipitation or gas produce.Thereby make waste water both reduce COD, improved biodegradability again, but the high concentrated organic wastewater of original difficult degradation is become biochemical property biochemical waste water preferably.
Waste water behind the microwave catalysis (3) is through composite absorption filtering (4), with the Filtration Adsorption in addition of the organism in the waste water, because the part macromole behind the microwave catalysis, become small organic molecule or organic salt, change these organic absorption properties, made the bad organism of original adsorption effect be adsorbed the effective adsorption filtration of filtrate in the strainer, thereby reduced the organism and the part salt of waste water rapidly, reduce the COD in the waste water, improved the B/C value.
According to the characteristics of waste water and the complexity of wastewater treatment, waste water after the adsorption filtration is circulated through one or many step (3), (4) again, secondary or the waste water after repeatedly microwave catalysis is handled, and then be that secondary or multiple adsorb are filtered, circulation or ladder microwave catalysis, adsorption filtration just, the COD of waste water is progressively descended, till reaching biochemical system requirement or direct discharging up to standard.
Waste water is through circulation microwave catalysis, adsorption filtration, reached biochemical system entry requirement after, can carry out biochemical treatment (5) process again, reach and enter clean water basin (6) after the emission standard and deposit reuse or discharging.
Adsorption filter is after adsorption filtration for some time, can be progressively saturated, at this moment change another adsorption filter, saturated adsorption filter is fed with the clear water after micro wave regeneration well heater (7) processing, carry out micro wave regeneration and handle, make wherein filtrate recovery or approaching original absorption property later on standby.The present invention is the wastewater treatment new technology of a kind of efficient, low consumption, non-secondary pollution, has solved the high density of industries such as agricultural chemicals, pharmacy, chemical industry, the treatment technology difficult problem of organic high-salinity wastewater.
Claims (3)
1, a kind of high concentrated organic wastewater treatment method using microwave circulation catalysis is characterized in that the technical process of handling waste water is:
A, microwave catalysis: high concentrated organic wastewater enters microwave catalysis and sends out and answer device, microwave catalysis reactor internal fixing has solid catalyst to contact with waste water, under the microwave action of certain wavelength, power, carry out the microwave catalysis scission reaction, make organism in the waste water under the synergy of microwave and catalyzer, the organism of macromole difficult degradation is cracked into the small organic molecule of easy biochemistry, but the high concentrated organic wastewater of original difficult degradation is become biochemical property biochemical waste water preferably.
B, composite absorption filtering: waste water behind the microwave catalysis is through the composite absorption filtering device, with the Filtration Adsorption in addition of the organism in the waste water, adsorbed organism and the part salt in the waste water, reduced the COD in the waste water, improved the B/C value.
C, circulation microwave catalysis, adsorption filtration: according to the characteristics of waste water and the complexity of wastewater treatment, waste water after the adsorption filtration is handled through one or many microwave catalysis, adsorption filtration again, be exactly circulation or ladder microwave catalysis, adsorption filtration, the COD of waste water is progressively descended, till reaching the biochemical system requirement or reaching direct emission standard.
2, high concentrated organic wastewater treatment method using microwave circulation catalysis according to claim 1 is characterized in that the technical process of wastewater treatment is:
A, equalizing tank pre-treatment: high concentrated organic wastewater is earlier through equalizing tank, and the stripping effect of playing the stabilizing water quality water yield and removing part low-boiling-point organic compound in the waste water also can be carried out autotelicly removing or cracking to some objectionable impurities in the waste water.
B, microwave catalysis: the waste water that the inherent regulation pond is come is sent out through microwave catalysis and is answered device, there is solid catalyst to contact in the microwave catalysis reactor with waste water, under the microwave action of certain wavelength, power, carry out the microwave catalysis scission reaction, make organism in the waste water under the synergy of microwave and catalyzer, the organism of macromole difficult degradation is cracked into the small organic molecule of easy biochemistry, but the high concentrated organic wastewater of original difficult degradation is become biochemical property biochemical waste water preferably.
C, composite absorption filtering: waste water behind the microwave catalysis is through the composite absorption filtering device, with the Filtration Adsorption in addition of the organism in the waste water, thereby adsorbed organism and the part salt in the waste water, reduced the COD in the waste water, improved the B/C value.
D, circulation microwave catalysis, adsorption filtration: according to the characteristics of waste water and the complexity of wastewater treatment, waste water after the adsorption filtration is handled through one or many microwave catalysis, adsorption filtration again, be exactly circulation or ladder microwave catalysis, adsorption filtration, the COD of waste water is progressively descended, till reaching the biochemical system requirement or reaching direct emission standard.
3, high concentrated organic wastewater treatment method using microwave circulation catalysis according to claim 1, it is characterized in that saturated adsorption filter is fed with the clear water after the processing of micro wave regeneration well heater, carry out micro wave regeneration and handle, the filtrate of saturated adsorption filter is recovered or approaching original absorption property.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101578437A CN101381180B (en) | 2008-10-15 | 2008-10-15 | High concentrated organic wastewater treatment method using microwave circulation catalysis |
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| CN2008101578437A CN101381180B (en) | 2008-10-15 | 2008-10-15 | High concentrated organic wastewater treatment method using microwave circulation catalysis |
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| CN101381180B CN101381180B (en) | 2011-08-10 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935085A (en) * | 2010-07-27 | 2011-01-05 | 青岛鑫源环保设备工程有限公司 | Microwave oxidized waste water treatment system and waste water treatment method |
| CN103121729A (en) * | 2012-12-30 | 2013-05-29 | 江苏永冠给排水设备有限公司 | Filter material regeneration defluorination device |
| CN103203211A (en) * | 2013-03-25 | 2013-07-17 | 青岛东方循环能源有限公司 | Wave splitting method for carbon-carbon single-bond organics |
| CN108083521A (en) * | 2017-12-12 | 2018-05-29 | 中海油天津化工研究设计院有限公司 | A kind of method that integrated micro oxidation reduces organic wastewater TOC |
| CN114853199A (en) * | 2021-02-03 | 2022-08-05 | 中国石油化工股份有限公司 | System and method for treating wastewater containing benzopyrene |
-
2008
- 2008-10-15 CN CN2008101578437A patent/CN101381180B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935085A (en) * | 2010-07-27 | 2011-01-05 | 青岛鑫源环保设备工程有限公司 | Microwave oxidized waste water treatment system and waste water treatment method |
| CN103121729A (en) * | 2012-12-30 | 2013-05-29 | 江苏永冠给排水设备有限公司 | Filter material regeneration defluorination device |
| CN103203211A (en) * | 2013-03-25 | 2013-07-17 | 青岛东方循环能源有限公司 | Wave splitting method for carbon-carbon single-bond organics |
| CN108083521A (en) * | 2017-12-12 | 2018-05-29 | 中海油天津化工研究设计院有限公司 | A kind of method that integrated micro oxidation reduces organic wastewater TOC |
| CN114853199A (en) * | 2021-02-03 | 2022-08-05 | 中国石油化工股份有限公司 | System and method for treating wastewater containing benzopyrene |
| CN114853199B (en) * | 2021-02-03 | 2023-10-13 | 中国石油化工股份有限公司 | Treatment system and method for benzopyrene-containing wastewater |
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| CN101381180B (en) | 2011-08-10 |
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