CN101508497A - Arc-shaped fin plate and integrated ammonia nitrogen treatment device - Google Patents
Arc-shaped fin plate and integrated ammonia nitrogen treatment device Download PDFInfo
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- CN101508497A CN101508497A CNA2009100645250A CN200910064525A CN101508497A CN 101508497 A CN101508497 A CN 101508497A CN A2009100645250 A CNA2009100645250 A CN A2009100645250A CN 200910064525 A CN200910064525 A CN 200910064525A CN 101508497 A CN101508497 A CN 101508497A
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- plate
- arc
- ammonia nitrogen
- grid pond
- fin piece
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- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 230000015271 coagulation Effects 0.000 claims abstract description 29
- 238000005345 coagulation Methods 0.000 claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 239000012530 fluid Substances 0.000 claims description 15
- 238000003795 desorption Methods 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 abstract description 20
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000001112 coagulating effect Effects 0.000 abstract 2
- 238000007872 degassing Methods 0.000 abstract 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 239000011259 mixed solution Substances 0.000 description 14
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 12
- 239000002351 wastewater Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 229910021529 ammonia Inorganic materials 0.000 description 8
- 238000005189 flocculation Methods 0.000 description 8
- 230000016615 flocculation Effects 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000004891 communication Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000007900 aqueous suspension Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- Physical Water Treatments (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to an arc-shaped fin plate and an integrated ammonia nitrogen treatment device, wherein the arc-shaped fin plate comprises a plane plate and transverse baffles which are vertically fixed on the plane of the plane plate and are parallel to each other, and an arc-shaped plate is fixed on the plate end edge of each transverse baffle; integration ammonia nitrogen processing apparatus is including coagulating reaction tank, desilting pond and degasification mechanism, wherein coagulating reaction tank lower part and desilting pond intercommunication, have arc fin swash plate desilting layer at the desilting pond mid-mounting, and this arc fin swash plate desilting layer is a certain quantity its both ends of arc fin board are fixed respectively on the inside wall of desilting pond both sides, the cistern intercommunication of desilting pond upper portion and degasification mechanism. The arc-shaped fin sloping plate technology has the characteristics of higher hydraulic load, good effluent quality and small occupied area; the integrated ammonia nitrogen treatment equipment integrates a rotational flow grid coagulation technology, an arc-shaped fin inclined plate technology and a high-efficiency ammonia nitrogen stripping tower, can reduce the occupied area, reduce the size of a structure and reduce the operation cost, has the advantages of simple structure, easy operation, high efficiency and the like, and is very favorable for popularization and implementation.
Description
One, technical field:
The present invention relates to a kind of ammonia nitrogen handling arrangement, particularly a kind of arcuated fin piece plate and integrated ammonia nitrogen processing equipment.
Two, background technology:
Ammonia nitrogen is the nutritive ingredient in the water body, but when admitting excess of ammonia nitrogen waste water in the water in river, lake, just cause the water eutrophication contact scar, its consequence is mad growth such as waterplant such as algae, dead back is consumed a large amount of oxygen by microbiological degradation makes the water body severe depletion of oxygen, cause the hydrobiont mass mortality, the breeding of putrid body and anerobe makes water quality muddiness, stench, has destroyed ecology, has polluted environment.Such water not only influences hydrobiont, human beings'health, even can not irrigate, also unsuitable industrial application.
Along with further developing of industry, environmental pollution is more and more serious, and this problem of environmental pollution has restricted development and national economy.In trade effluent and the domestic refuse waste water, ammonia nitrogen content is very high, up to thousands of mg/litre, if without processing, can bring immeasurable consequence to follow-up equipment and environment, denitrogenation of waste water is handled and is got more and more people's extensive concerning, and is the difficult problem that the water treatment engineering technology personnel are difficult to capture all the time.Existing ammonia nitrogenous wastewater treatment technology is nearly: physico-chemical process, biochemical integrated process, new bio denitrogenation, membrane processing method etc., have multiplely though handle the treatment process of high-concentration ammonia nitrogenous wastewater, also do not have a kind ofly can to take into account that flow process is simple at present, reduced investment, technology maturation, control is convenient and the method for non-secondary pollution, practical application that working cost is low.Existing removal of ammonia and nitrogen functions of the equipments are more single, the low general 30-60% of removal efficiency, and floor space is bigger, can not adapt to the demand of the economic society of present high speed development.
Three, summary of the invention:
In order to overcome the deficiency that prior art exists, the invention provides a kind of arcuated fin piece plate and integrated ammonia nitrogen processing equipment.
Technical scheme:
A kind of arcuated fin piece plate comprises smooth plate, and vertical fixing has the lagging of some amount at least one plane of smooth plate, and is parallel to each other between each lagging, is fixed with arc on another side of each lagging.
The cambered surface direction of described each arc is identical.
Each lagging width is identical, and each arc cambered surface radian, width are identical.
The arcuated fin piece plate space and the secured in parallel of some amount are formed the arcuated fin piece flaggy together.
A kind of integrated ammonia nitrogen processing equipment that includes described arcuated fin piece plate, also comprise coagulation reaction tank, remove mud sump and deaerating mechanism, wherein the deaerating mechanism rising pipe that comprises water reservoir and be arranged in water pump, the water pump of water reservoir is communicated with ammonia-nitrogen desorption tower upper end water-in, the inboard spiral nozzle that adopts of water-in is handled coming water to carry out homogenizing, the water of handling well is by the very big filler filtering layer of surface-area, in the stripping tower bottom blower fan is installed, under the blowing of certain air quantity, reach the purpose of removal of ammonia and nitrogen, stripping tower is positioned at the water purifying tank top and is communicated with it in addition.The coagulation reaction tank bottom with remove mud sump and be communicated with, the arcuated fin piece swash plate be installed removing mud layer removing the mud sump middle part, described arcuated fin piece swash plate is that its two ends of arcuated fin piece plate of some amount are separately fixed at except that on the inner side-wall of mud sump both sides except that mud layer; Removing mud sump top is communicated with the water reservoir of deaerating mechanism.
Described coagulation reaction tank comprise at least two independently of one another and by otch be communicated with the grid pond, described each grid pond comprises three-layer network compartment at least, the interval horizontal distribution is fixed on the inner side-wall of grid pond between each clathrum, fluid inlet is positioned at deflection grid pond sidewall locations to be installed, and makes feed liquor produce eddy flow.
When described grid pond is odd number for example 3, fluid inlet is installed on the first grid pond side wall upper part of an end, mixed solution produces downward eddy flow after entering the grid pond by fluid inlet, be provided with communication passage in the first grid pond and bottom, the second grid pond one side, mixed solution flows into second grid pond bottom and to forward spin flow from the first grid pond lower tangential, the second grid pond and top, the 3rd grid pond one side are provided with communication passage, the mixed solution in the second grid pond is tangential the 3rd grid pond and the downward eddy flow of flowing into after eddy flow rises, and finally flows into by its bottom and removes mud sump; When the grid pond is even number for example 2, fluid inlet is installed on first grid pond lower sidewall one side of an end, mixed solution tangentially enters from fluid inlet and form eddy flow upwards in the first grid pond, be provided with communication passage in the first grid pond and top, the second grid pond one side, mixed solution continues downward eddy flow behind the tangential inflow second grid pond, the first grid pond, finally flow into except that mud sump by its bottom.
Described grid pond is round shape or is oval cylinder, perhaps is square tube shape.
During for square tube shape, oblique plane or the cambered surface rebound of being installed with at each interior angle place of square tube shape.
Below removing mud sump, collection mud funnel and mud mouth are installed.
Beneficial effect of the present invention:
1, arcuated fin piece swash plate technology is the efficient precipitation inclined plate of developing on the basis of existing waveform swash plate, labyrinth swash plate, high-density labyrinth swash plate of a new generation, abandoned the waveform swash plate complexity, shortcoming that support is more and the relatively poor shortcoming of labyrinth swash plate effluent quality have been installed.It is higher that the arcuated fin piece swash plate has hydraulic load, the characteristics that effluent quality is good, floor space is little.It can adapt to the less-than-ideal settling tank of front coagulation transforms, because the arcuated fin piece swash plate has unique second coagulation technology, it can carry out the secondary flocculation to the medicament that does not have complete coagulation in coagulation system, reaches best flocculation sediment effect.
2, integrated ammonia nitrogen treatment facility collection eddy flow grid coagulation technology+arcuated fin piece swash plate technology+efficient ammonia-nitrogen desorption tower is an one, join the medicament thorough mixing of system by eddy flow gridding technique handle, form the cotton-shaped object of Utopian macrobead, precipitate through the arcuated fin piece swash plate, go out water suspension less than 10 mg/litre, enter into efficient ammonia-nitrogen desorption tower through once promoting then, can remove the ammonia nitrogen more than 86% in the water body.Abandoned big shortcoming of existing cyclone technique floor space and the too many disadvantage of grid coagulation technology lattice, realized that flocculation time is short, the characteristics that the flco effect is good.Having flocculation time is 5-8 minute, and dosing is conventional 60-80%, both can reduce occupation of land face, dwindles the structures volume, reduces the advantage of working cost again.
3, this device can be widely used in the high-concentration ammonia nitrogenous wastewater of industries such as city garbage percolate, wastewater from chemical industry, petroleum wastewater, food processing wastewater, breeding wastewater is handled.The high-concentration ammonia nitrogenous wastewater that all will effectively control and handle China's discharging is implemented and is promoted in the exploitation of this technology, for the safety control of water surrounding and ecotope immeasurable effect is arranged, and has vast market prospect.
4, integrated ammonia nitrogen processing equipment of the present invention adopts the arcuated fin piece swash plate, have simple in structure, operation easily, advantage such as efficient is beneficial to promotion and implementation very much.
Four, description of drawings:
Fig. 1 is an integrated ammonia nitrogen processing equipment structural representation of the present invention;
Fig. 2 is the plan structure synoptic diagram of Fig. 1;
Fig. 3 is the A-A cross-sectional view of Fig. 1;
Fig. 4 is the B-B cross-sectional view of Fig. 3;
Fig. 5-the 1st, the arcuated fin piece plate structural representation;
Fig. 5-the 2nd, the side structure synoptic diagram of Fig. 5-1;
Fig. 6 is an aggregation pond perspective view;
Fig. 7 is a grid pond plan structure synoptic diagram;
Fig. 8 is mixed solution eddy flow situation synoptic diagram in the grid pond.
Number in the figure 1 is a coagulation reaction tank, and 2 for removing mud sump, and 3 is water reservoir, 4 is water purifying tank, and 5 is the ammonia-nitrogen desorption tower, and 6 is service platform, 7 is arcuated fin piece plate, and 8 is clathrum, and 9 is water pump, 10 is drinking-water pipe, and 11 are coagulation reaction tank and remove partition wall between the mud sump, and 12 for removing partition wall between mud sump and the water reservoir, 13 is partition wall between water reservoir and the water purifying tank, and 14 are mixed solution water-in (being positioned at grid pond one side of coagulation reaction tank one end), and 15 are the scrubbing mouth, 16 is support, 17 is pure water inlet, and 18 is coagulation reaction tank and remove the mud sump foot passage, and 19 for removing mud sump and water reservoir upper channel, 20 are collection mud funnel, 21 is the stripping tower fluid inlet, and 22 is each layer of stripping tower spherolite, and 23 is the stripping tower blast inlet, 24 is ladder, 25 is the grid pond, and 26 is eddy flow shape mixed solution signal in the grid pond, and 27 is rebound, 71 is lagging, and 72 is arc.
Five, embodiment:
Embodiment one: referring to Fig. 5-1, Fig. 5-2, a kind of arcuated fin piece plate comprises smooth plate, and vertical fixing has the lagging 71 of some amount at least one plane of smooth plate, parallel to each other between each lagging 71, on another side of each lagging, be fixed with arc 72.
The bending direction unanimity of described each arc 72.Each lagging width unanimity, each arc crooked radian, width unanimity.
A plurality of arcuated fin piece plates are installed by the inclination that is parallel to each other and are formed arcuated fin piece swash plate layer, be that a kind of desilt effect is well removed mud layer, be applicable to for example use in field such as ammonia nitrogen mixed solution desilt, can adapt to the less-than-ideal settling tank of front coagulation in installation and ammonia nitrogen handling arrangement transforms, because the arcuated fin piece swash plate has unique second coagulation technology, it can carry out the secondary flocculation to the medicament that does not have complete coagulation in coagulation system, reaches best flocculation sediment effect.
This technology is the efficient precipitation inclined plate of developing on the basis of existing waveform swash plate, labyrinth swash plate, high-density labyrinth swash plate of a new generation, has abandoned the waveform swash plate complexity, shortcoming that support is more and the relatively poor shortcoming of labyrinth swash plate effluent quality are installed.It is higher that the arcuated fin piece swash plate has hydraulic load, the characteristics that effluent quality is good, floor space is little.
Embodiment two: referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5-1, Fig. 5-2, Fig. 6, Fig. 7, Fig. 8, a kind of integrated ammonia nitrogen processing equipment that includes embodiment one described arcuated fin piece plate 7 also comprises coagulation reaction tank 1, removes mud sump 2 and deaerating mechanism.
Described grid pond 1 is a square tube shape, oblique plane or the cambered surface rebound 27 of being installed with at each interior angle place of square tube shape.
The hydraulic pipe 10 that deaerating mechanism comprises water reservoir 3 and is arranged in the water pump 9 of water reservoir, water pump is communicated with ammonia-nitrogen desorption tower 5 upper end water-ins, the stripping tower fluid inlet 21 inboard spiral nozzles that adopt are handled coming water to carry out homogenizing, the water of handling well is by the very big filler filtering layer 22 of surface-area, on stripping tower bottom blast inlet 23, blower fan is installed, under the blowing of certain air quantity, reach the purpose of removal of ammonia and nitrogen, stripping tower is positioned at the water purifying tank top and is communicated with it in addition.
The integrated ammonia nitrogen processing equipment collection eddy flow grid coagulation technology+arcuated fin piece swash plate technology of present embodiment+efficient ammonia-nitrogen desorption tower is an one, join the medicament thorough mixing of system by eddy flow gridding technique handle, form the cotton-shaped object of Utopian macrobead, precipitate through the arcuated fin piece swash plate, go out water suspension less than 10 mg/litre, enter into efficient ammonia-nitrogen desorption tower through once promoting then, can remove the ammonia nitrogen more than 86% in the water body.
The eddy flow gridding technique is under the prerequisite of existing cyclone coagulation technology and grid coagulation technology, autonomous a kind of efficient flocculating technology of finding, it has merged both advantages, abandoned big shortcoming and the too many disadvantage of grid coagulation technology lattice of cyclone technique floor space, the realization flocculation time is short, the characteristics that the flco effect is good.Having flocculation time is 5-8 minute, and dosing is conventional 60-80%, both can reduce occupation of land face, dwindles the structures volume, reduces the advantage of working cost again.
Efficient ammonia-nitrogen desorption tower adopts spiral nozzle to handle coming water to carry out homogenizing, and the water of handling well is by the very big filler of specific surface area, and the blower fan by the bottom reaches the purpose of removal of ammonia and nitrogen under the blowing of certain air quantity.
Embodiment three: accompanying drawing is not drawn, meaning and embodiment one are basic identical, something in common does not repeat, different is: when the grid pond of coagulation reaction tank is even number for example 2, fluid inlet is installed on first grid pond lower sidewall one side of an end, mixed solution tangentially enters from fluid inlet and form eddy flow upwards in the first grid pond, be provided with communication passage in the first grid pond and top, the second grid pond one side, mixed solution continues downward eddy flow behind the tangential inflow second grid pond, the first grid pond, finally flow into except that mud sump by its bottom.
Embodiment four: accompanying drawing is not drawn, and meaning and embodiment one are basic identical, and something in common does not repeat, and different is: described grid pond is round shape or is oval cylinder.
Claims (10)
1, a kind of arcuated fin piece plate comprises smooth plate, it is characterized in that: vertical fixing has the lagging of some amount at least one plane of smooth plate, and is parallel to each other between each lagging, is fixed with arc on the plate end limit of each lagging.
2, arcuated fin piece plate according to claim 1 is characterized in that: the cambered surface direction of described each arc is identical.
3, arcuated fin piece plate according to claim 1 is characterized in that: each lagging width is identical, and each arc cambered surface radian, width are identical.
4, arcuated fin piece plate according to claim 1 is characterized in that: the arcuated fin piece plate space and the secured in parallel of some amount are formed the arcuated fin piece flaggy together.
5, a kind of integrated ammonia nitrogen processing equipment that includes the described arcuated fin piece plate of claim 1, also comprise coagulation reaction tank, remove mud sump and deaerating mechanism, wherein deaerating mechanism comprises water reservoir and is arranged in water pump, the ammonia-nitrogen desorption tower of water reservoir and is positioned at the water purifying tank of stripping tower below, it is characterized in that: the coagulation reaction tank bottom with remove mud sump and be communicated with, the arcuated fin piece swash plate is being installed removes mud layer removing the mud sump middle part, it is that its two ends of the described arcuated fin piece plate of claim 1 of some amount are separately fixed at except that on the inner side-wall of mud sump both sides that described arcuated fin piece swash plate removes mud layer; Removing mud sump top is communicated with the water reservoir of deaerating mechanism.
6, integrated ammonia nitrogen processing equipment according to claim 5, it is characterized in that: described coagulation reaction tank comprise at least two independently of one another and by otch be communicated with the grid pond, described each grid pond comprises three-layer network compartment at least, the interval horizontal distribution is fixed on the inner side-wall of grid pond between each clathrum, fluid inlet is positioned at deflection grid pond sidewall locations to be installed, and makes feed liquor produce eddy flow.
7, integrated ammonia nitrogen processing equipment according to claim 6 is characterized in that: when described grid pond was odd number, fluid inlet was installed on the grid pond side wall upper part of an end; When the grid pond was even number, fluid inlet was installed on the grid pond lower sidewall of an end.
8, according to claim 5 or the described integrated ammonia nitrogen processing equipment of 6 arbitrary claims, it is characterized in that: described grid pond is round shape or is oval cylinder, perhaps is square tube shape.
9, integrated ammonia nitrogen processing equipment according to claim 8 is characterized in that: oblique plane or the cambered surface rebound of being installed with at each interior angle place of square tube shape.
10, integrated ammonia nitrogen processing equipment according to claim 5 is characterized in that: below removing mud sump collection mud funnel and mud mouth are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100645250A CN101508497B (en) | 2009-03-31 | 2009-03-31 | Arcuated fin piece plate and integrated ammonia nitrogen processing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100645250A CN101508497B (en) | 2009-03-31 | 2009-03-31 | Arcuated fin piece plate and integrated ammonia nitrogen processing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101508497A true CN101508497A (en) | 2009-08-19 |
| CN101508497B CN101508497B (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100645250A Expired - Fee Related CN101508497B (en) | 2009-03-31 | 2009-03-31 | Arcuated fin piece plate and integrated ammonia nitrogen processing equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954220A (en) * | 2010-08-12 | 2011-01-26 | 贝洪毅 | Circulating water purification device for straw gasification system |
| CN102701299A (en) * | 2012-06-20 | 2012-10-03 | 江苏海洲水务工程有限公司 | Treatment equipment for wastewater with high ammonia and nitrogen contents |
-
2009
- 2009-03-31 CN CN2009100645250A patent/CN101508497B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954220A (en) * | 2010-08-12 | 2011-01-26 | 贝洪毅 | Circulating water purification device for straw gasification system |
| CN101954220B (en) * | 2010-08-12 | 2012-05-30 | 贝洪毅 | Circulating water purification device for straw gasification system |
| CN102701299A (en) * | 2012-06-20 | 2012-10-03 | 江苏海洲水务工程有限公司 | Treatment equipment for wastewater with high ammonia and nitrogen contents |
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| Publication number | Publication date |
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| CN101508497B (en) | 2011-09-28 |
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Granted publication date: 20110928 Termination date: 20140331 |