CN108455752B - Construction sewage treatment system - Google Patents
Construction sewage treatment system Download PDFInfo
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- CN108455752B CN108455752B CN201810073922.3A CN201810073922A CN108455752B CN 108455752 B CN108455752 B CN 108455752B CN 201810073922 A CN201810073922 A CN 201810073922A CN 108455752 B CN108455752 B CN 108455752B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention discloses a construction sewage treatment system, which comprises a sewage treatment device for treating sewage, wherein the sewage treatment device is communicated with a water inlet device for introducing sewage into the sewage treatment device and a water outlet device for receiving the treated sewage, the sewage treatment device comprises a treatment box, a first-stage filter cylinder and a second-stage filter cylinder are fixedly connected inside the treatment box, the second-stage filter cylinder is positioned inside the first-stage filter cylinder, a liquid storage cylinder penetrates through the upper end surface of the treatment box, a filter plate is arranged at the cylinder bottom of the liquid storage cylinder, the pores of the first-stage filter cylinder contain sulfobutyl ether-beta-cyclodextrin sodium salt and aluminum ammonium sulfate, the sewage enters the treatment box from the water inlet device and is firstly filtered through the first-stage filter cylinder, the aluminum ammonium sulfate and the sulfobutyl ether-beta-cyclodextrin sodium salt dissolved in the water are dispersed to the whole treatment box through the sewage, the sewage in the whole treatment box is treated by the heavy metal ions.
Description
Technical Field
The invention relates to a sewage treatment system, in particular to a construction sewage treatment system.
Background
Construction can produce a large amount of sewage, for example the template waters, the building block waters, terrazzo, water cutting, concrete placement all can produce construction sewage, however at present to the processing of construction sewage only through the sediment of sedimentation tank promptly accomplish sewage treatment, heavy metal ion in the sewage still exists, and more construction sewage is direct to be absorbed by soil, causes soil pollution, and a set of construction sewage treatment system that urgently needs reduces the pollution of construction to the environment.
Chinese patent No. CN105582740B discloses an integrated sewage treatment system, which comprises a precipitation device and a filtration device, the sedimentation device comprises a shell, a guide shell arranged at the lower end in the shell, and an inclined plate component arranged at the upper end in the shell, the bottom of the shell is provided with an inverted cone-shaped sludge collecting hopper, the bottom of the sludge collecting hopper is provided with a sludge discharge pipe, the guide shell is in a round table structure with a big top and a small bottom, the upper end of the guide shell is closed, the lower end of the guide shell is opened, a water inlet pipe is arranged on the side surface of the upper end of the guide shell, supporting pipes distributed along the axis are arranged in the guide shell, an inner spiral belt is arranged on the outer side of the supporting tube, an annular backflow channel is formed between the outer side of the guide cylinder and the inner wall of the shell, the top of the shell is provided with a drain pipe, the outer end of the drain pipe is connected with the filtering device, and the side face of the bottom of the filtering device is provided with a clean water pipe.
When the integrated sewage treatment system is in normal use, the sludge discharge pipe is closed, sewage enters the guide shell from the water inlet pipe, flows to the bottom of the guide shell along the spiral channel between the inner spiral belts, in the flowing process, the direction of the water flow is changed continuously, the momentum of the water flow is reduced continuously, the flow speed of the water flow is slowed continuously, a large amount of solid particles such as silt in the sewage are accumulated on the surface of the spiral belt in the process, then deposit to sludge collection fill bottom along the spiral band, water after the sediment is from the backward flow passageway upward flow get into the ramp assembly in, the ramp assembly utilizes shallow pond theory to promote remaining granule in the aquatic and carries out the secondary and deposit, and the water at casing top gets into filter equipment in from the drain pipe, and filter equipment filters the remaining a small amount of impurity in the aquatic, and the clear water is discharged from the clear water pipe at last, and the interior mud (the sewage deposits and forms) of sludge collection fill is cleared up through the mud pipe regularly. Although the integrated sewage treatment system has a good filtering effect on silt in sewage, the integrated sewage treatment system cannot treat heavy metal ions in the sewage, and the sewage is easily polluted by soil after being absorbed by the soil and needs to be improved.
Disclosure of Invention
Aiming at the defects in the prior art, the technical purpose of the invention is to provide a construction sewage treatment system which has the advantage of treating heavy metal ions in sewage.
The technical purpose of the invention is realized by the following technical scheme:
the utility model provides a construction sewage treatment system, includes the sewage treatment plant who is used for handling sewage, sewage treatment plant intercommunication has the water installations that is used for letting in sewage to sewage treatment plant, is used for receiving the play water installation of the sewage after handling, sewage treatment plant is including handling the case, fixedly connected with first order cartridge filter and second level cartridge filter between the up end of handling incasement portion and the lower terminal surface, the second level cartridge filter is located the inside of first order cartridge filter, the lateral wall and the water installations intercommunication of handling the case, the stock solution section of thick bamboo is worn to be equipped with by the up end of handling the case, the bobbin base of stock solution section of thick bamboo is provided with the filter, first order cartridge filter is the porous ceramic that the aperture is less than 5mm, contain sulfobutyl ether-beta-cyclodextrin sodium salt and aluminium ammonium sulfate in the hole of first order cartridge filter.
By adopting the technical scheme, sewage enters the treatment box from the water inlet device and is firstly filtered by the first-stage filter cylinder for the first time, then is filtered by the second-stage filter cylinder for the second time, then enters the filter cylinder by the filter plate and is filtered for the third time, finally, liquid in the filter cylinder enters the water outlet device to complete sewage treatment, the first-stage filter cylinder is porous ceramic with the pore diameter smaller than 5mm, the silt in the sewage can be filtered, the pores of the first-stage filter cylinder contain sulfobutyl ether-beta-cyclodextrin sodium salt and aluminum ammonium sulfate, the aluminum ammonium sulfate is slowly dissolved in water, metal ions in the sewage are chelated and precipitated by matching with the sulfobutyl ether-beta-cyclodextrin sodium salt, and the sulfobutyl ether-beta-cyclodextrin sodium salt plays a stabilizing role in stabilizing the aluminum ammonium sulfate, the hydrolysis phenomenon of the aluminum ammonium sulfate is slowed down, so that the first-stage filter cylinder can keep a longer-time filtering effect, and the aluminum ammonium sulfate dissolved in water and the sulfobutyl ether-beta-cyclodextrin sodium salt are dispersed to the whole treatment box through sewage, and the heavy metal ion filtration effect is realized on the sewage in the whole treatment box.
The invention is further configured to: the second-stage filter cylinder is made of porous ceramic with the pore diameter smaller than 3mm, and the pores of the second-stage filter cylinder contain calcium citrate and trisodium nitrilotriacetate.
By adopting the technical scheme, the second-stage filter cylinder has the advantages that the pores can further filter silt in the sewage, the calcium citrate is slowly dissolved in the water, the trisodium nitrilotriacetate is matched to carry out chelation and precipitation on metal ions in the sewage, and the trisodium nitrilotriacetate is stabilized by sulfobutyl ether-beta-cyclodextrin sodium salt dissolved in the sewage, so that the decomposition of the trisodium nitrilotriacetate is slowed down.
The invention is further configured to: the filter plate is porous ceramic with the aperture smaller than 2mm, and calcium glycinate is contained in pores of the filter plate.
Through adopting above-mentioned technical scheme, the hole of filter plays filterable effect once more to the silt in the sewage, and sulfobutyl ether-beta-cyclodextrin sodium salt in the calcium glycinate cooperation sewage carries out the chelate sediment to the heavy metal ion in the sewage, further filters the heavy metal ion in the sewage, and because aluminium ammonium sulfate and other acidic material make sewage be the acidity, calcium glycinate plays neutralization to sewage to filter the sulfate radical ion, prevent that the sulfate radical ion from producing the pollution to the environment.
The invention is further configured to: the water inlet device comprises a water suction machine for sucking construction sewage and a water storage tank communicated with the water suction machine and used for storing the sewage, and the height of the upper end face of the water storage tank is higher than that of the upper end face of the liquid storage cylinder.
Through adopting above-mentioned technical scheme, inhale the water storage tank through all kinds of construction sewage on the water sucking machine with the building site in, sewage inflow in the water storage tank carries out sewage, and the up end height of water storage tank is higher than the height of liquid storage cylinder, and the sewage height of handling the incasement rises slowly, and after the liquid level height of water storage tank is higher than the height of filter, the sewage of handling the incasement enters into the liquid storage cylinder after long-time heavy metal treatment, gets into out water installation through the liquid storage cylinder and accomplishes the filtration.
The invention is further configured to: the bottom of the side wall of the water storage tank is communicated with the bottom of the side wall of the treatment tank, a filter block tightly attached to the side wall of the water storage tank is arranged at the bottom of the water storage tank, and the filter block is a porous stone block with the aperture smaller than 10 mm.
Through adopting above-mentioned technical scheme, carry out the prefilter through the filter block to the silt in the sewage, prevent that silt is too much and block up the first order cartridge filter.
The invention is further configured to: the pores of the filter block contain polyacrylamide and diethylenetriamine pentaacetic acid.
By adopting the technical scheme, the polyacrylamide can purify sewage, sediment sedimentation is promoted, the diethylenetriamine pentaacetic acid is slowly dissolved in the sewage, the heavy metal ions in the sewage are sedimentated by being matched with the diethylenetriamine pentaacetic acid, the solubility of the polyacrylamide is reduced by the diethylenetriamine pentaacetic acid, the service time of the polyacrylamide is prolonged, and the diethylenetriamine pentaacetic acid can prevent the polyacrylamide from hydrolysis, so that the stability of the polyacrylamide is enhanced.
The invention is further configured to: the water outlet device comprises a water outlet tank for receiving the treated sewage, the water outlet tank is provided with an inlet communicated with the liquid storage cylinder and an outlet positioned on the side wall opposite to the side wall where the inlet is positioned, and the height of the outlet is lower than that of the inlet.
Through adopting above-mentioned technical scheme, go out the water tank and carry out once storage to the sewage after handling, when the sewage after the processing is stored and goes out the water tank in, impurity deposits to the bottom of the case of water tank, and the upper strata is limpid liquid leaves out the water tank through the export, accomplishes sewage treatment.
The invention is further configured to: the inner wall of the water outlet tank is fixedly connected with a vertically placed filter which is positioned between the inlet and the outlet, and the filter is made of cation exchange resin.
Through adopting above-mentioned technical scheme, adsorb once more through cation exchange resin heavy metal ion, carry out the heavy metal ion's that once more handles to the sewage after handling to reduce the heavy metal ion content in the sewage once more.
The invention is further configured to: the inner wall fixedly connected with of play water tank extends to the drainage piece of the bottom of the case of play water tank from the import bottom, drainage piece include drainage plate and two distribute in drainage plate both sides and with drainage plate fixed connection's baffle.
By adopting the technical scheme, the liquid at the inlet is introduced into the bottom of the water outlet tank through the drainage piece, so that the liquid in the water outlet tank is prevented from being greatly vibrated due to the fact that the liquid falls to the liquid level in the water outlet tank, the liquid in the water outlet tank is basically kept stable, and the sediment can be kept at the bottom of the water outlet tank.
In conclusion, the invention has the following beneficial effects:
1. the sediment and heavy metal elements settled by chemical substances are filtered by the filter block, the first-stage filter cylinder, the second-stage filter cylinder, the filter plate and the sedimentation of the water outlet tank;
2. dissolving polyacrylamide, diethylenetriamine pentaacetic acid, aluminum ammonium sulfate, sulfobutyl ether-beta-cyclodextrin sodium salt, calcium citrate and nitrilotriacetic acid trisodium salt in sewage to chelate and settle heavy metal ions;
3. the stability of polyacrylamide is enhanced by diethylenetriaminepentaacetic acid, and the stability of aluminum ammonium sulfate and trisodium nitrilotriacetate is enhanced by sulfobutyl ether-beta-cyclodextrin sodium salt, so that the service life of the system is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a three-dimensional cross-sectional view of the present invention.
Reference numerals: 1. a water inlet device; 11. a water suction machine; 12. a water storage tank; 13. a filter block; 2. a sewage treatment device; 21. a treatment tank; 22. a first stage filter cartridge; 23. a second stage cartridge filter; 24. a filter plate; 25. a liquid storage cylinder; 3. a water outlet device; 31. a water outlet tank; 311. an inlet; 312. an outlet; 32. a filter; 4. a drainage member; 41. a drainage plate; 42. and a baffle plate.
Detailed Description
The material of the invention comprises the following components: polyacrylamide was purchased from polyacrylamide, diethylenetriaminepentaacetic acid, from practical co.ltd.Shanghai, sulfobutyl ether-beta-cyclodextrin sodium salt, from chemical co.ltd.Baikai, Shanghai, aluminum ammonium sulfate, from DevWis chemical technology, Inc., calcium citrate, from trisodium nitrilotriacetate, from sodium nitrosotriacetate, from Hanghai hong science co.ltd.
The present invention will be described in further detail with reference to the accompanying drawings.
A construction sewage treatment system comprises a sewage treatment device 2 for treating sewage, a water inlet device 1 communicated with the sewage treatment device 2 and used for introducing the sewage into the sewage treatment device 2, and a water outlet device 3 communicated with the sewage treatment device 2 and used for receiving the treated sewage.
The water inlet device 1 comprises a water suction machine 11 for sucking construction sewage and a water storage tank 12 which is communicated with the water suction machine 11 through a water pipe and is used for storing the sewage, wherein the communication position of the water storage tank 12 and the water suction machine 11 is positioned on the side wall of the water storage tank 12 close to the top. The side wall of the water storage tank 12 is communicated with the sewage treatment device 2 at a position close to the bottom. The bottom of the water storage tank 12 is fixedly connected with a filter block 13 tightly attached to the side wall of the water storage tank 12, the height of the filter block 13 is higher than the height of the communication part between the water storage tank 12 and the sewage treatment device 2, the filter block 13 is a porous stone block with the aperture smaller than 10mm, and the pores of the filter block 13 contain polyacrylamide and diethylenetriamine pentaacetic acid. And (3) dissolving polyacrylamide and diethylenetriamine pentaacetic acid in a volatile solvent, immersing the filter block 13 in the solution, shaking and taking out, and attaching the polyacrylamide and diethylenetriamine pentaacetic acid to the pores of the porous stone block after the solvent is volatilized. The construction sewage is absorbed by the water absorber 11 and then enters the water storage tank 12, the sewage in the water storage tank 12 falls to the upper part of the filter block 13, silt with the particle size larger than 10mm in the sewage is blocked above the filter block 13 by porous stones, the primarily filtered sewage enters the gap of the filter block 13 and dissolves trace polyacrylamide and diethylenetriamine pentaacetic acid, and the polyacrylamide and diethylenetriamine pentaacetic acid promote the aggregation and sedimentation of impurities in the sewage above the filter block 13.
The sewage treatment device 2 comprises a treatment box 21, a first-stage filter cylinder 22 fixedly connected with the upper end surface and the lower end surface inside the treatment box 21, a second-stage filter cylinder 23 fixedly connected with the upper end surface and the lower end surface inside the treatment box 21 and positioned inside the first-stage filter cylinder 22, and a liquid storage cylinder 25 penetrating through the upper end surface of the treatment box 21 and positioned above the middle part of the second-stage filter cylinder 23. The height of the upper end surface of the water storage tank 12 is higher than that of the upper end surface of the liquid storage cylinder 25. The bottom of the side wall of the treatment tank 21 is communicated with the bottom of the side wall of the water storage tank 12 through a water pipe. The first-stage filter cartridge 22 is porous ceramic with the pore diameter smaller than 5mm, and the pores of the first-stage filter cartridge 22 contain sulfobutyl ether-beta-cyclodextrin sodium salt and aluminum ammonium sulfate. The second-stage filter cartridge 23 is made of porous ceramic with a pore diameter of less than 3mm, and the pores of the second-stage filter cartridge 23 contain calcium citrate and trisodium nitrilotriacetate. The bottom of the liquid storage cylinder 25 is a filter plate 24, the filter plate 24 is porous ceramic with the aperture smaller than 2mm, and the pores of the filter plate 24 contain calcium glycinate. The sewage enters a treatment tank 21 from the bottom of a water storage tank 12, then is subjected to primary heavy metal ion treatment through a primary filter cylinder 22, and a small amount of sulfobutyl ether-beta-cyclodextrin sodium salt and aluminum ammonium sulfate are dissolved, the sulfobutyl ether-beta-cyclodextrin sodium salt and the aluminum ammonium sulfate promote heavy metal ions to chelate and settle, and then the heavy metal ions are treated for the second time through a second-stage filter cylinder 23, dissolving a small amount of calcium citrate and trisodium nitrilotriacetate, sulfobutyl ether-beta-cyclodextrin sodium salt, aluminum ammonium sulfate, calcium citrate and trisodium nitrilotriacetate to promote the further chelation and sedimentation of heavy metal ions, then the third treatment is carried out after passing through the filter plate 24, and a small amount of calcium glycinate is dissolved, the pH is neutralized by the calcium glycinate, and reacts with the sulfate radical dissolved in water before, so as to prevent the introduction of the sulfate radical into the sewage to cause environmental pollution.
The water outlet device 3 comprises a water outlet tank 31 for receiving the treated sewage and a filter 32 fixedly connected with the inner wall of the water outlet tank 31. The outlet tank 31 is provided with an inlet 311 communicating with the reservoir 25 and an outlet 312 located at a side wall opposite to the side wall where the inlet 311 is located, and the outlet 312 has a height lower than that of the inlet 311. The filter 32 is a cation exchange resin and is located between the inlet 311 and the outlet 312 and separates the inlet 311 from the outlet 312. The inner wall of the water outlet tank 31 is fixedly connected with a drainage member 4 extending from the bottom of the inlet 311 to the bottom of the water outlet tank 31, and the drainage member 4 comprises a drainage plate 41 and two baffle plates 42 distributed on two sides of the drainage plate 41 and fixedly connected with the drainage plate 41. The treated sewage in the liquid storage cylinder 25 flows to the bottom of the water outlet tank 31 through the drainage member 4 until the liquid level in the water outlet tank 31 is higher than the outlet 312, the liquid in the water outlet tank 31 leaves from the outlet 312 through the cation exchange resin, and the cation exchange resin treats heavy metal ions in the liquid again, so that the liquid flowing out from the outlet 312 is basically free of heavy metal ions.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (4)
1. The utility model provides a construction sewage treatment system, includes sewage treatment plant (2) for handling sewage, sewage treatment plant (2) intercommunication has water installations (1) that are used for letting in sewage to sewage treatment plant (2), is used for receiving effluent plant (3) of sewage after the processing, characterized by: the sewage treatment device (2) comprises a treatment box (21), a first-stage filter cylinder (22) and a second-stage filter cylinder (23) are fixedly connected between the upper end face and the lower end face of the interior of the treatment box (21), the second-stage filter cylinder (23) is located in the interior of the first-stage filter cylinder (22), the side wall of the treatment box (21) is communicated with a water inlet device (1), a liquid storage cylinder (25) penetrates through the upper end face of the treatment box (21), a filter plate (24) is arranged at the cylinder bottom of the liquid storage cylinder (25), the first-stage filter cylinder (22) is porous ceramic with the pore diameter smaller than 5mm, and the pore of the first-stage filter cylinder (22) contains sulfobutyl ether-beta-cyclodextrin sodium salt and aluminum ammonium sulfate;
the second-stage filter cylinder (23) is made of porous ceramic with the pore diameter smaller than 3mm, and the pores of the second-stage filter cylinder (23) contain calcium citrate and trisodium nitrilotriacetate;
the filter plate (24) is made of porous ceramic with the pore diameter smaller than 2mm, and calcium glycinate is contained in pores of the filter plate (24);
the water inlet device (1) comprises a water suction machine (11) for sucking construction sewage and a water storage tank (12) communicated with the water suction machine (11) and used for storing the sewage, and the height of the upper end face of the water storage tank (12) is higher than that of the upper end face of the liquid storage cylinder (25);
the bottom of the side wall of the water storage tank (12) is communicated with the bottom of the side wall of the treatment tank (21), a filter block (13) tightly attached to the side wall of the water storage tank (12) is arranged at the bottom of the water storage tank (12), and the filter block (13) is a porous stone block with the pore diameter smaller than 10 mm;
the pores of the filter block (13) contain polyacrylamide and diethylenetriamine pentaacetic acid.
2. The construction sewage treatment system according to claim 1, wherein: the water outlet device (3) comprises a water outlet tank (31) used for receiving treated sewage, the water outlet tank (31) is provided with an inlet (311) communicated with the liquid storage barrel (25) and an outlet (312) positioned on the side wall opposite to the side wall where the inlet (311) is positioned, and the height of the outlet (312) is lower than that of the inlet (311).
3. The construction sewage treatment system according to claim 2, wherein: the inner wall of the water outlet tank (31) is fixedly connected with a vertically placed filter (32) positioned between the inlet (311) and the outlet (312), and the filter (32) is made of cation exchange resin.
4. The construction sewage treatment system according to claim 2, wherein: the inner wall fixedly connected with of play water tank (31) extends to drainage piece (4) of the bottom of the case of play water tank (31) from import (311) bottom, drainage piece (4) include drainage plate (41) and two distribute in drainage plate (41) both sides and with baffle (42) of drainage plate (41) fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810073922.3A CN108455752B (en) | 2018-01-25 | 2018-01-25 | Construction sewage treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810073922.3A CN108455752B (en) | 2018-01-25 | 2018-01-25 | Construction sewage treatment system |
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| CN108455752A CN108455752A (en) | 2018-08-28 |
| CN108455752B true CN108455752B (en) | 2021-02-05 |
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| CN201810073922.3A Expired - Fee Related CN108455752B (en) | 2018-01-25 | 2018-01-25 | Construction sewage treatment system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103641226A (en) * | 2013-12-26 | 2014-03-19 | 张�成 | Heavy metal sewage treating agent and preparation method thereof |
| CN203700125U (en) * | 2014-03-10 | 2014-07-09 | 重庆铁科轨道交通工程有限公司 | Movable combined type sewage treatment equipment for tunnel construction |
| CN204939112U (en) * | 2015-08-24 | 2016-01-06 | 森田环保科技有限公司 | A kind of waste disposal plant |
| CN205953723U (en) * | 2016-08-23 | 2017-02-15 | 云南省环境科学研究院 | Sewage treatment equipment |
| CN206486367U (en) * | 2017-02-17 | 2017-09-12 | 云南建投第十三建设有限公司 | A kind of construction sewage disposal system |
| CN206562350U (en) * | 2017-02-28 | 2017-10-17 | 广东省广弘华侨建设投资集团有限公司 | A kind of construction sewage discharge filter |
-
2018
- 2018-01-25 CN CN201810073922.3A patent/CN108455752B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103641226A (en) * | 2013-12-26 | 2014-03-19 | 张�成 | Heavy metal sewage treating agent and preparation method thereof |
| CN203700125U (en) * | 2014-03-10 | 2014-07-09 | 重庆铁科轨道交通工程有限公司 | Movable combined type sewage treatment equipment for tunnel construction |
| CN204939112U (en) * | 2015-08-24 | 2016-01-06 | 森田环保科技有限公司 | A kind of waste disposal plant |
| CN205953723U (en) * | 2016-08-23 | 2017-02-15 | 云南省环境科学研究院 | Sewage treatment equipment |
| CN206486367U (en) * | 2017-02-17 | 2017-09-12 | 云南建投第十三建设有限公司 | A kind of construction sewage disposal system |
| CN206562350U (en) * | 2017-02-28 | 2017-10-17 | 广东省广弘华侨建设投资集团有限公司 | A kind of construction sewage discharge filter |
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| Publication number | Publication date |
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| CN108455752A (en) | 2018-08-28 |
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