CN203877954U - MAP-synthesis-based turbulence-state dephosphorization device - Google Patents
MAP-synthesis-based turbulence-state dephosphorization device Download PDFInfo
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- CN203877954U CN203877954U CN201420308195.1U CN201420308195U CN203877954U CN 203877954 U CN203877954 U CN 203877954U CN 201420308195 U CN201420308195 U CN 201420308195U CN 203877954 U CN203877954 U CN 203877954U
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- Prior art keywords
- map
- inner core
- empty chamber
- endless tube
- synthetic
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- Expired - Lifetime
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- 238000003786 synthesis reaction Methods 0.000 title abstract 2
- 238000005273 aeration Methods 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000010865 sewage Substances 0.000 claims abstract description 19
- 238000005243 fluidization Methods 0.000 claims abstract description 10
- 239000002699 waste material Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 18
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 18
- 239000011574 phosphorus Substances 0.000 abstract description 18
- 239000002351 wastewater Substances 0.000 abstract description 16
- 239000000463 material Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- CKMXBZGNNVIXHC-UHFFFAOYSA-L ammonium magnesium phosphate hexahydrate Chemical compound [NH4+].O.O.O.O.O.O.[Mg+2].[O-]P([O-])([O-])=O CKMXBZGNNVIXHC-UHFFFAOYSA-L 0.000 description 12
- 229910052567 struvite Inorganic materials 0.000 description 12
- 239000011777 magnesium Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 8
- 229910052749 magnesium Inorganic materials 0.000 description 8
- 238000001556 precipitation Methods 0.000 description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 235000021050 feed intake Nutrition 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 230000031018 biological processes and functions Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 238000000247 postprecipitation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 229910017958 MgNH Inorganic materials 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 229920000037 Polyproline Polymers 0.000 description 1
- DOZVDOMORKXFBJ-UHFFFAOYSA-N [NH4+].[Mg].O.[PH2](=O)[O-] Chemical compound [NH4+].[Mg].O.[PH2](=O)[O-] DOZVDOMORKXFBJ-UHFFFAOYSA-N 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 229920013639 polyalphaolefin Polymers 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Landscapes
- Water Treatment By Sorption (AREA)
Abstract
The utility model discloses an MAP-synthesis-based turbulence-state dephosphorization device with simple structure and lower cost, which comprises a vertical tank body and an inner cylinder, wherein the inside of the vertical tank body is sequentially divided into an upper empty chamber, a middle fluidization region and a lower settling region; the top of the upper empty chamber is provided with a feed pipe and a sewage inlet pipe; the side wall of the upper empty chamber is provided with a water outlet; the inner cylinder is suspended on the top of the upper empty chamber and positioned in the middle fluidization region; the inner wall of the inner cylinder is provided with an obliquely downward screen baffle; the screen baffle is provided with at least one through hole; the lower side of the inner cylinder is provided with an aeration ring pipe; the upper part of the aeration ring pipe is provided with at least one aeration hole; the aeration ring pipe is also provided with a gas inlet pipe; and the bottom of the lower settling region is provided with a drainage port. The screen baffle enables the phosphorus-containing wastewater to form turbulence and sufficiently react with the fed material, and thus, the dephosphorization rate is high. The device has the advantages of simple structure, small occupied area and low construction cost, and is easy for popularization and application.
Description
Technical field
The utility model relates to a kind of dephosphorization apparatus, especially a kind of based on the synthetic Turbulent Flow dephosphorization apparatus of MAP.
Background technology
Phosphoric is the important element that causes body eutrophication, and in the time that in environment water, total phosphorus concentration reaches 0.02mg/L, the eubiosis of water surrounding is destroyed.Struvite MAP is a kind of white crystal that is insoluble in water, and its main component is six hypophosphite monohydrate ammonium magnesium (MgNH
4pO
46H
2o), positive rhomboidan structure.The synthetic physical chemistry of struvite MAP precipitation dephosphorization method is the magnesium chloride that adopts price lower, magnesium oxide, ammonium chloride etc., ammonia nitrogen, phosphate radical in waste water are precipitated with the form of struvite, realize the purifying treatment of phosphorus and can be used for fertilizer or phosphoric acid salt manufacture, be regarded as having the dephosphorization technique of prospect.
In the past, sewage work's dephosphorization mainly contain biological process, absorption method and chemical method.Biological process dephosphorization is to utilize certain micro-organisms (as polyP bacteria PAOs) in the time of anaerobism, to discharge phosphorus, and absorbs the organism of the easy degradeds such as lower fatty acid; At aerobic section, excess absorbs phosphorus, and by the discharge of excess sludge, phosphorus is removed.Absorption method is mainly by material adsorption and dephosphorizations such as crystal, filler or filter membranes.Chemical method is obvious to the phosphorus removal effect of lower concentration.The dephosphorization apparatus that sewage work uses based on above method is generally made up of two tank bodies of anaerobic and aerobic or other multiple tank bodies, and its complex structure, floor space is large, input cost is very high, is unfavorable for widespread use.
Utility model content
Problem to be solved in the utility model has been to provide a kind of simple in structure, lower-cost based on the synthetic Turbulent Flow dephosphorization apparatus of MAP.
In order to address the above problem, the utility model provides a kind of and has comprised vertical tank body based on the synthetic Turbulent Flow dephosphorization apparatus of MAP, also comprises inner core; The inside of described vertical tank body is divided into empty chamber, top, fluidization regions, middle part and settling region, bottom from top to bottom successively; Kong Shi top, described top is provided with commissioning pipe and enters waste pipe, and the sidewall of empty chamber, top is provided with water outlet; Described inner core is suspended on Kong Shi top, top and is positioned at fluidization regions, middle part; Sieve formula baffle plate under the inwall of described inner core is provided with and is tilted to, described sieve formula baffle plate is divided into two relative row along the short transverse of inner core, and two row sieve formula baffle plates are crisscross arranged, and described sieve formula baffle plate is provided with at least one through hole; The downside of described inner core is provided with aeration endless tube, and the top of described aeration endless tube is provided with at least one solarization air cap, on described aeration endless tube, is also provided with inlet pipe; The bottom of settling region, described bottom is provided with sewage draining exit.
Further, the angle of described sieve formula baffle plate and vertical direction is 60 °～75 °.
Further, be also provided with interior aeration endless tube in the ring of described aeration endless tube, described interior aeration endless tube is communicated with aeration endless tube, and the top of interior aeration endless tube is provided with at least one production well.
Further, the sidewall of empty chamber, described top tilts and is provided with flow deflector, and described flow deflector is positioned at the below of water outlet.
Further, the top of described inner core is provided with reduction of speed baffle ring.
Further, the sidewall of empty chamber, described top is provided with pH meter.
Further, the bottom of settling region, described bottom is funnel-form, and described sewage outfalls setting is in the central authorities of bottom, settling region, bottom, and described sewage draining exit is provided with graduating valve.
Further, described in, enter waste pipe and be provided with intake pump.
The beneficial effects of the utility model are: feed intake and enter in inner core and mix with phosphorus-containing wastewater, concurrent biochemical reaction precipitates phosphoric generation struvite; Sieve formula baffle plate has greatly been promoted the transmission of phosphorus-containing wastewater, and waste water flows and forms Turbulent Flow with zigzag in inner core, makes to feed intake and fully mixes with phosphorus-containing wastewater, promotes precipitin reaction, has improved the clearance of Phosphorus From Wastewater; Inner core downside aeration not only makes to feed intake and further mixes, reacts more complete with phosphorus-containing wastewater, and adopts stripping CO
2method continues aeration can improve pH value, reduces struvite crystals and forms required time; Meanwhile, aeration also makes to react postprecipitation and water overflows from inner tube wall upside, between inner core and tank body, precipitates, and has realized mixing, precipitin reaction and discrete group and has been combined in same tank body and carries out; Compared with prior art this dephosphorization apparatus is simple in structure, and only a tank body of need can be to waste water dephosphorization, greatly reduces floor space and fabrication cost, is easy to apply.Interior aeration endless tube makes inner core bottom aeration more evenly fully; Flow deflector can prevent that precipitating mixing water enters water outlet; Reduction of speed baffle ring can slowly overflow by the interior mixing water of inner core, and the precipitin reaction time is longer; PH meter can detect the potential of hydrogen of tank interior water body, so that staff regulates potential of hydrogen in time, is beneficial to the generation of struvite precipitation; Funnel shaped bottom can facilitate sedimentary discharge and recycling; Intake pump can make the better convenience of water inlet.
Brief description of the drawings
Fig. 1 is enforcement structural representation of the present utility model;
Fig. 2 be in Fig. 1 A to view;
Mark in figure: the empty chamber 11 of vertical tank body 1, top, fluidization regions, middle part 12, settling region, bottom 13, inner core 2, aeration gas distribution pipe 21, solarization air cap 211, sieve formula baffle plate 22, through hole 221, reduction of speed baffle ring 23, commissioning pipe 3, enter waste pipe 4, intake pump 41, water outlet 5, sewage draining exit 6, graduating valve 61, flow deflector 7 and pH meter 8.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, 2, a kind ofly comprise vertical tank body 1 based on the synthetic Turbulent Flow dephosphorization apparatus of MAP, also comprise inner core 2; The inside of described vertical tank body 1 is divided into empty chamber 11, top, fluidization regions, middle part 12 and settling region, bottom 13 from top to bottom successively; The top of empty chamber 11, described top is provided with commissioning pipe 3 and enters waste pipe 4, and the sidewall of empty chamber 11, top is provided with water outlet 5; Commissioning pipe 3 and enter the inside that when waste pipe 4 arranges will guarantee feed intake (magnesium source or alkali lye) and sewage to send into inner core 2; Inner core 2 is suspended on the top of empty chamber 11, top and is positioned at fluidization regions 12, middle part, and inner core 2 can be by suspentions such as antiseptic chain or corrosion resistant ropes; Sieve formula baffle plate 22 under the inwall of described inner core 2 is provided with and is tilted to, described sieve formula baffle plate 22 is divided into two relative row along the short transverse of inner core 2, two row sieve formula baffle plates 22 are crisscross arranged, described sieve formula baffle plate 22 is provided with at least one through hole 221, when being installed, sieve formula baffle plate 22 to ensure that neighbouring sieve formula baffle plate 22 is tilted relatively at inner core 2, staggered but non-interference downwards; The downside of described inner core 2 is provided with aeration endless tube 21, and the top of described aeration endless tube 21 is provided with at least one solarization air cap 211, on described aeration endless tube 21, is also provided with inlet pipe 212; Aeration endless tube 21 is annular, and ring footpath is less than inner core external diameter, and aeration endless tube 21 is generally fixed on the downside of inner core 2 by being arranged on the anchor of vertical tank body 1 bottom, and solarization air cap 211 is general more than three and at an upper portion thereof uniform along the annulus of aeration endless tube 21; The bottom of settling region, described bottom 13 is provided with sewage draining exit 6.
When use, by entering waste pipe 4, phosphorus-containing wastewater is added to the inside of inner core 2, by commissioning pipe 3, magnesium source is dropped into the inside of inner core 2 simultaneously, phosphorus-containing wastewater and magnesium source enter inner core 2 and mix; Pressurized gas is entered aeration endless tube 21 and is passed through solarization air cap 211 to the inner aeration of inner core 2 by inlet pipe 212, and phosphorus-containing wastewater is mixed with magnesium source; Phosphorus-containing wastewater flows and forms Turbulent Flow with zigzag on sieve formula baffle plate 22, and phosphorus-containing wastewater further mixes with magnesium source; Ammonia nitrogen in phosphorus-containing wastewater, phosphate radical react raw struvite and precipitate with magnesium source, aeration makes to react postprecipitation mixing water and overflows from inner core 2 wall upsides the fluidization regions, middle part 12 entering between vertical tank body 1 and inner core 2 and precipitate, part struvite is at the inner Direct precipitation of inner core 2, and struvite sinks to settling region, bottom 13 and discharges and reclaim from sewage draining exit 6; The water outlet 5 of water after dephosphorization from 11 sidewalls of empty chamber, top flows out.Generally we adopt seawater, magnesium chloride, magnesium hydroxide or magnesium oxide etc. as magnesium source.The input ratio of magnesium source and sewage is generally by (Mg
2+): (PO
4 3-)=1.3:1 adds, and it is 8.0～10.7 that alkali lye adds the water pH value scope in tank of controlling, optimal ph because of sewage quality different; Adopt if desired stripping CO
2method continues aeration to improve pH value, reduces struvite crystals and forms required time; The cycle that sewage draining exit 6 is got rid of struvite precipitation is generally 3 days/time.
Concrete, in order to make current form good Turbulent Flow to improve dephosphorizing rate, described sieve formula baffle plate 22 is 60 °～75 ° with the angle of vertical direction.
As shown in Figure 2, in order to make the aeration under inner core 2 more even, abundant, be also provided with interior aeration endless tube 213 in the ring of described aeration endless tube 21, described interior aeration endless tube 213 is communicated with aeration endless tube 21, and the top of interior aeration endless tube 213 is provided with at least one production well 2131.
As shown in Figure 1, the sidewall of empty chamber 11, described top tilts and is provided with flow deflector 7, and described flow deflector 7 is positioned at the below of water outlet 5, and flow deflector 7 is for preventing because the precipitation mixing water that aeration overflows from inner core 2 upper walls enters water outlet 5.
From Fig. 1, it can also be seen that, the top of described inner core 2 is provided with reduction of speed baffle ring 23, and reduction of speed baffle ring 23 is for cushioning the precipitation mixing water overflowing because of aeration, and waste water is elongated in the residence time of inner core, makes precipitin reaction more abundant, and phosphor-removing effect is better.
Concrete, the sidewall of empty chamber 11, described top is provided with pH meter 8, and pH meter 8 can detect the potential of hydrogen of tank interior water body, so that staff regulates potential of hydrogen in time, is beneficial to the generation of struvite precipitation.
In order to make throw out better discharge collection, the bottom design funnel-form of settling region, bottom 13, described sewage draining exit 6 is arranged on the central authorities of 13 bottoms, settling region, bottom, as shown in Figure 1; On sewage draining exit 6, be also provided with the graduating valve 61 for controlling sediment discharge.
Concrete, in order to facilitate entering of sewage, enter to be provided with intake pump 41 on waste pipe 4 described.
Claims (8)
1. based on the synthetic Turbulent Flow dephosphorization apparatus of MAP, comprise vertical tank body (1), it is characterized in that: also comprise inner core (2); The inside of described vertical tank body (1) is divided into empty chamber, top (11), fluidization regions, middle part (12) and settling region, bottom (13) from top to bottom successively; The top of empty chamber, described top (11) is provided with commissioning pipe (3) and enters waste pipe (4), and the sidewall of empty chamber, top (11) is provided with water outlet (5); Described inner core (2) is suspended on the top of empty chamber, top (11) and is positioned at fluidization regions, middle part (12); The inwall of described inner core (2) is provided with the sieve formula baffle plate (22) under being tilted to, described sieve formula baffle plate (22) is divided into two relative row along the short transverse of inner core (2), two row sieve formula baffle plates (22) are crisscross arranged, and described sieve formula baffle plate (22) is provided with at least one through hole (221); The downside of described inner core (2) is provided with aeration endless tube (21), the top of described aeration endless tube (21) is provided with at least one solarization air cap (211), is also provided with inlet pipe (212) on described aeration endless tube (21); The bottom of settling region, described bottom (13) is provided with sewage draining exit (6).
2. as claimed in claim 1 a kind of based on the synthetic Turbulent Flow dephosphorization apparatus of MAP, it is characterized in that: described sieve formula baffle plate (22) is 60 °～75 ° with the angle of vertical direction.
3. as claimed in claim 1 a kind of based on the synthetic Turbulent Flow dephosphorization apparatus of MAP, it is characterized in that: in the ring of described aeration endless tube (21), be also provided with at least one interior aeration endless tube (213), described interior aeration endless tube (213) is communicated with aeration endless tube (21), and the top of interior aeration endless tube (213) is provided with at least one production well (2131).
4. as claimed in claim 1 a kind of based on the synthetic Turbulent Flow dephosphorization apparatus of MAP, it is characterized in that: the sidewall of empty chamber, described top (11) tilts and is provided with flow deflector (7), and described flow deflector (7) is positioned at the below of water outlet (5).
5. as claimed in claim 1 a kind of based on the synthetic Turbulent Flow dephosphorization apparatus of MAP, it is characterized in that: the top of described inner core (2) is provided with reduction of speed baffle ring (23).
6. as claimed in claim 1 a kind of based on the synthetic Turbulent Flow dephosphorization apparatus of MAP, it is characterized in that: the sidewall of empty chamber, described top (11) is provided with pH meter (8).
7. a kind of based on the synthetic Turbulent Flow dephosphorization apparatus of MAP as described in claim 1 to 6 any one, it is characterized in that: the bottom of settling region, described bottom (13) is funnel-form, described sewage draining exit (6) is arranged on the central authorities of bottom, settling region, bottom (13), and described sewage draining exit (6) is provided with graduating valve (61).
8. as claimed in claim 7 a kind of based on the synthetic Turbulent Flow dephosphorization apparatus of MAP, it is characterized in that: described in enter waste pipe (4) and be provided with intake pump (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420308195.1U CN203877954U (en) | 2014-06-11 | 2014-06-11 | MAP-synthesis-based turbulence-state dephosphorization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420308195.1U CN203877954U (en) | 2014-06-11 | 2014-06-11 | MAP-synthesis-based turbulence-state dephosphorization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203877954U true CN203877954U (en) | 2014-10-15 |
Family
ID=51678478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420308195.1U Expired - Lifetime CN203877954U (en) | 2014-06-11 | 2014-06-11 | MAP-synthesis-based turbulence-state dephosphorization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203877954U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517132A (en) * | 2016-12-30 | 2017-03-22 | 贵州开磷集团股份有限公司 | Device and method for recycling phosphorus and magnesium from phosphorus ore magnesium removal liquid |
| CN106689019A (en) * | 2016-12-19 | 2017-05-24 | 苏州格池小绵羊水族用品有限公司 | Fish tank circulation filtration separation system |
| CN108358294A (en) * | 2018-05-04 | 2018-08-03 | 谢晓进 | Livestock and poultry cultivation sewage extracts the equipment and its application method of phosphate fertilizer |
-
2014
- 2014-06-11 CN CN201420308195.1U patent/CN203877954U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106689019A (en) * | 2016-12-19 | 2017-05-24 | 苏州格池小绵羊水族用品有限公司 | Fish tank circulation filtration separation system |
| CN106517132A (en) * | 2016-12-30 | 2017-03-22 | 贵州开磷集团股份有限公司 | Device and method for recycling phosphorus and magnesium from phosphorus ore magnesium removal liquid |
| CN106517132B (en) * | 2016-12-30 | 2019-03-05 | 贵州开磷集团矿肥有限责任公司 | A kind of phosphorus ore de-magging liquid carries out the device and method of phosphorus magnesium recycling |
| CN108358294A (en) * | 2018-05-04 | 2018-08-03 | 谢晓进 | Livestock and poultry cultivation sewage extracts the equipment and its application method of phosphate fertilizer |
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Granted publication date: 20141015 |
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