CN110759489A - Electricity-zero-valent iron system for accelerating removal of sulfide in sewage pipeline - Google Patents
Electricity-zero-valent iron system for accelerating removal of sulfide in sewage pipeline Download PDFInfo
- Publication number
- CN110759489A CN110759489A CN201911117681.9A CN201911117681A CN110759489A CN 110759489 A CN110759489 A CN 110759489A CN 201911117681 A CN201911117681 A CN 201911117681A CN 110759489 A CN110759489 A CN 110759489A
- Authority
- CN
- China
- Prior art keywords
- group
- sulfide
- valent iron
- removal
- sewage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 56
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 29
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 14
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 14
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 229910052717 sulfur Inorganic materials 0.000 abstract description 9
- 239000011593 sulfur Substances 0.000 abstract description 7
- 230000009471 action Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009991 scouring Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000002161 passivation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910017436 S2 Can Inorganic materials 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 150000001875 compounds Chemical group 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- -1 hydrogen ions Chemical class 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000011684 sodium molybdate Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 231100001234 toxic pollutant Toxicity 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/005—Combined electrochemical biological processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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
- C02F2101/101—Sulfur compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Biodiversity & Conservation Biology (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Molecular Biology (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention belongs to the technical field of sewage treatment, and particularly relates to an electric-zero-valent iron system for accelerating removal of sulfide in a sewage pipeline4 2‑Reduction of sewage into S2‑Then Fe generated by the anode electrode in the anode group2+Is oxidized into Fe2S, Fe produced simultaneously2S is quickly separated from the anode electrode through the action of hydraulic scouring, so that the generation of hydrogen sulfide is effectively inhibited. The invention has the advantages of simple structure,the sulfur conversion effect is good, the environment is not polluted, the sulfur-containing components in the sewage can be effectively removed, and the generation of hydrogen sulfide is reduced.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to an electric-zero-valent iron system for accelerating the removal of sulfides in a sewage pipeline.
Background
In recent years, environmental problems have increasingly attracted domestic and foreign attention, and more manpower and material resources are invested in the country in the aspect of environmental problems. And municipal sewage pipeline hydrogen sulfide (H) as one of environmental problems2S) release problem has become a hot topic in the field of environmental research today. Corrosion of municipal sewage pipes, where H represents a huge economic loss to each country every year2The corrosion caused by S is one of the most main causes of corrosion of sewage pipelines. In addition to this, H2S is a toxic gas, and if diffused in the environment, the harm to human health is not insignificant. The urbanization process of China is accelerated continuously, and at present, the total length of municipal drainage networks of China reaches 51 kilometers, so that the method has strategic significance on how to control the generation of the municipal sewage pipeline hydrogen sulfide, and can bring huge economic benefits.
H2S production requires a series of processes to generate SO carried in the sewage in the anaerobic zone below the municipal sewage pipeline4 2-Is first reduced to S by the action of Sulfate Reducing Bacteria (SRB)2，S2-Then with hydrogen ions (H) in water+) Binding to produce H2And S escapes. Municipal sewage pipelines transport various kinds of sewage in daily life to sewage treatment plants, but H2S generation is inevitable, and H2S is difficult to collect, and therefore, H is suppressed in the waste water2The generation of S has practical significance, and the generation of toxic gas is directly killed in the cradle. Therefore, the conventional method is to add a bactericide (such as sodium hypochlorite and molybdate), a strong base, a metal ion and other chemical agents into the sewage pipeline, so as to effectively inhibit the generation of Sulfate Reducing Bacteria (SRB), or to increase the pH and allow the S to be dissolved2-Precipitate, so that hydrogen sulfide (H) can be effectively inhibited2S), the traditional methods are remarkable in effect, but the investment cost is high, so that the method is very good in effectIs difficult to be applied in large scale. In recent years, biochemical methods have been used to biochemically treat S in sewer pipes2-Methods for conversion to other compound forms have become popular. By regulating the dosage of the electron acceptor, S2-Can be converted into elemental sulfur (S) by denitrifying bacteria in the sewage pipeline0). S contained in municipal sewage pipes at sewage discharge outlets and bottom sludge2Very high in concentration, therefore H2S is very much generated. NO3 -When the electron acceptor flows with sewage in the sewage pipeline, the advantage is that the sewage pipeline S with a certain length can be used2-Plays a very effective control role. At present, it is aimed at continuously generating S2-A more convenient and faster inhibition method is lacking for a sewage pipe node with a higher concentration.
In recent years, zero-valent iron (ZVI) is a new substance for water pollution treatment, has bright application prospect in the aspects of toxic pollutant and heavy metal treatment and the like, and has low key input cost, simple and convenient operation and no secondary pollution. According to the existing research, the following results are proved: ZVI can be used in anaerobic conditions by binding H in water+Production of Fe2+And is of Fe2+Has strong reducibility, so that S in water can be mixed with2-Combined to generate FeS, and effectively inhibits H by removing the FeS through the flow of sewage2And (4) generating S. The zero-valent iron (ZVI) electrode can have the problem of electrode surface passivation, so that the problem of electrode surface passivation can be solved by adding an external voltage on the zero-valent iron (ZVI) electrode, and the accelerated removal of S in sewage can be achieved2-Thereby more effectively suppressing the generation of hydrogen sulfide. This patent proposes a method for continuously converting S in sewage pipes by using ZVI filler as 'fixed' electron acceptor2-The technology is characterized in that an additional electrode is added on the surface of zero-valent iron, so that the removal of hydrogen sulfide in the municipal sewage pipeline is accelerated. For producing S in municipal sewage pipe network2-And carrying out reinforced control on key points with higher concentration.
Disclosure of Invention
Strengthened control is carried out to the sewage well point that municipal administration sewage pipeline produced hydrogen sulfide concentration is higherDisclosure of the inventionthe present invention is directed to an electro-zero valent iron system for accelerated sulfide removal in a sewer line using ZVI mesh as a "fixed" electron acceptor for continuous conversion of S in the sewer line2-Process idea for producing S in municipal sewage pipe network2-And performing reinforced control on key points with higher concentration.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an it gets rid of electricity-zero valent iron system of sewer line sulphide with higher speed, includes from last to setting gradually group battery, integrated circuit pipe, the fixed chassis on the sewer well wall down, fixed chassis is located the sewer well bottom and is close to mud department, line connection between the positive pole joint of group battery and the integrated circuit pipe, be equipped with positive pole group and negative pole group on the fixed chassis, line connection between the negative pole joint of negative pole group and group battery, line connection between positive pole group and the integrated circuit pipe.
As a further preferable scheme, the fixing base plate is provided with a mosaic groove for installing the anode group and the cathode group.
In a further preferred embodiment, the anode set is a circular wire mesh structure, and the circular wire mesh structure is 600mm high.
As a further preferable scheme, the anode group comprises three circles of concentric circular wire mesh structures, and the cathode group is located in the circular wire mesh structure at the innermost circle.
As a further preferable scheme, three circuits are arranged on the integrated circuit tube and are respectively connected with three circles of circular wire mesh structures.
As a further preferable scheme, the cathode group is a cylindrical structure surrounded by carbon fiber nets.
The electric-zero valent iron system for accelerating the removal of the sulfide in the sewage pipeline, disclosed by the invention, has the advantages of simple structure, good sulfur conversion effect and no pollution to the environment, can effectively remove sulfur-containing components in the sewage and reduce the generation of hydrogen sulfide, the embedded groove is arranged on the fixed chassis, the rapid replacement of the anode group and the cathode group is facilitated, the anode group consists of 3 annular wire nets, divalent iron can be generated under anaerobic conditions, and can fully react with water flow when the water flow passes through the wire nets, the sulfur conversion rate is improved, and the removal of the sulfide in the sewage pipeline is accelerated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of an anode stack;
FIG. 3 is a schematic structural view of a cathode assembly;
FIG. 4 is a comparison of removal rates with and without applied voltage;
FIG. 5 is a graph showing a comparison of removal rates at different flow rates when the applied voltage was 0.6V;
wherein, 1-fixed chassis, 2-anode group, 3-cathode group, 4-integrated circuit tube, and 5-battery group.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
In the invention, a battery pack (5) is fixed on the wall of a sewage well and positioned at a position 60cm below the well cover, an integrated circuit tube (4) is arranged on the wall 30cm below the anode of the battery pack (5), the anode of the battery pack (5) is connected with the integrated circuit tube (4) through a lead, the lead led out from the integrated circuit tube (4) is connected to an anode group (2), the cathode of the battery pack (5) is directly connected to a cathode group (3), and the leads are all fixed on the wall of the sewage well.
The anaerobism region is near bottom mud department below the municipal administration sewer line liquid level, fixed chassis (1) is in the anaerobism region through welding steel pipe welding, positive pole group (2) and negative pole group (3) are fixed in fixed chassis (1) through inlaying the groove, and positive pole group (2) and negative pole group (3) most region are in the coplanar with horizontally sewer line, the electrode bottom is connected by independent wire, it leads to fixed chassis (1) outside to derive the aperture through the wire, positive pole group (2) wire is finally made up in integrated circuit pipe (4), the reconnection is to group battery (5) anodal, negative pole group (3) wire lug connection is to the group battery negative pole. The anode group (2) and the cathode group (3) are embedded in the groove, so that the device is convenient to replace quickly. The electric-zero-valent iron system is arranged below the sewage and close to the sludge.
Example two
The anode group 2 is a circular wire netting structure, the anode group 2 comprises three circles of circular wire netting structures which are concentric and have different diameters, three circuits are arranged on the integrated circuit tube 4 and are respectively connected with the three circles of circular wire netting structures, and the cathode group 3 is positioned in the circular wire netting structure at the innermost circle; the cathode group 3 is a cylindrical structure surrounded by carbon fiber nets, and the cathode group 3 adopts a dense net structure, so that sewage can be in full contact reaction with the carbon rods conveniently;
the cathode group and the anode group are positioned in an anaerobic area close to bottom sludge below the liquid level in the municipal sewage pipeline, the anode group and the cathode group are installed at the bottom close to the sludge through a fixed chassis, the anode group is a wire netting made of ZVI, and the generation of Fe can be accelerated under the anaerobic condition by applying external voltage2+SO in municipal sewage pipes4 2-The sewage is reduced into S by sulfate reducing bacteria in the municipal sewage pipeline bottom mud2-Then Fe generated by an anode electrode in an anode group in an anaerobic zone at the bottom of the municipal sewage pipeline2+Is oxidized into Fe2S, Fe produced simultaneously2The S is rapidly separated from the anode electrode by the action of hydraulic flushing. In the operation process, the maintenance and overhaul of the anode group and the cathode group can be completed by a special clamping device. This patent is to export sewage in the system sampling in order to detect the change of sulphur conversion thing concentration.
EXAMPLE III
The sewage flow rate in the sewage is usually 0.6m/s, and the zero-valent iron (ZVI) usually has the problem of surface passivation, so an external voltage is added to the zero-valent iron electrode group, and in order to examine the sulfur conversion efficiency of the zero-valent iron system under different voltages, a group of control cases (a blank control group is a zero-valent iron system without the external voltage, and the other group is an electric-zero-valent iron system under different voltages) is made under the condition of 0.06 m/s.
Under the condition that the flow speed of sewage is 0.06m/s, the removal rate of the reactor after entering stable operationAs shown in fig. 4, in the absence of an external voltage, the removal of the zero-valent iron system is continuously decreased and gradually tends to be stable, and in the presence of an external voltage, the whole removal rate is increased first, the removal rate tends to be stable when being about 91%, then a certain voltage is increased, and the removal rate is decreased, but the whole removal rate is higher than that in the absence of the external voltage. Therefore, an external voltage is added on the surface of the zero-valent iron, so that S can be removed in an accelerated way2-And the sulfur conversion efficiency is highest at a voltage of 0.6V.
Example four
Under the condition that the applied voltage of the electric-zero-valent iron system is 0.6V, S in sewage is investigated by different sewage flow rates (0.06 m/S, 0.12m/S and 0.18 m/S)2-The removal rate of the system, the operation stability and the operation effect of the system. A blank control group (the control group is the same as the other 3 groups except that no external voltage is applied) is also set. As shown in FIG. 5, the system has the highest removal rate when the flow rate of the sewage is 0.06m/S, and the blank control group has the lowest removal rate, so that the faster the flow rate of the sewage is, the S in the sewage is under the action of ZVI2-The lower the removal rate, which is probably due to the influence of the sewage flow rate on the release of Fe due to zero-valent iron corrosion2+Velocity, thereby reducing the velocity of S in the wastewater2-A precipitation rate is generated.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. An electric-zero valent iron system for accelerating the removal of sulfide in a sewage pipeline is characterized in that: include from last to setting gradually group battery (5), integrated circuit pipe (4), fixed chassis (1) on the bilge well wall down, fixed chassis (1) are located below the liquid level and are close to bottom mud anaerobism region, weld on the wall of a well through the welding steel pipe on the chassis edge, line connection between the positive pole joint of group battery (5) and integrated circuit pipe (4), be equipped with positive pole group (2) and negative pole group (3) on fixed chassis (1), line connection between the negative pole joint of negative pole group (3) and group battery (5), line connection between positive pole group (2) and integrated circuit pipe (4).
2. The electro-zero valent iron system for accelerating the removal of sewer sulfide of claim 1, wherein: the fixed chassis (1) is provided with an embedded groove for installing the anode group (2) and the cathode group (3).
3. The electro-zero valent iron system for accelerating the removal of sewer sulfide of claim 2, wherein: the anode group (2) is of a circular wire mesh structure, and the height of the circular wire mesh structure is 600 mm.
4. The electro-zero valent iron system for accelerating the removal of sewer sulfide of claim 3, wherein: the anode group (2) comprises three circles of concentric circular wire netting structures, and the cathode group (3) is positioned in the center of the fixed chassis.
5. The electro-zero valent iron system for accelerating the removal of sewer sulfide of claim 4, wherein: and three circuits are arranged on the integrated circuit tube (4) and are respectively connected with three circles of circular wire netting structures.
6. The electro-zero valent iron system for accelerating the removal of sewer sulfide of claim 1, wherein: the cathode group (3) is of a cylindrical structure surrounded by carbon fiber nets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911117681.9A CN110759489A (en) | 2019-11-15 | 2019-11-15 | Electricity-zero-valent iron system for accelerating removal of sulfide in sewage pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911117681.9A CN110759489A (en) | 2019-11-15 | 2019-11-15 | Electricity-zero-valent iron system for accelerating removal of sulfide in sewage pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110759489A true CN110759489A (en) | 2020-02-07 |
Family
ID=69337887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911117681.9A Pending CN110759489A (en) | 2019-11-15 | 2019-11-15 | Electricity-zero-valent iron system for accelerating removal of sulfide in sewage pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110759489A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5935412A (en) * | 1997-06-17 | 1999-08-10 | Atlantis Limited Partnership | Method and apparatus for eliminating odors in sewage systems |
| RU2165892C1 (en) * | 1999-10-20 | 2001-04-27 | Уфимский государственный нефтяной технический университет | Method of cleaning waste water from sulfides |
| WO2007021640A2 (en) * | 2005-08-11 | 2007-02-22 | United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Bimetallic treatment system and its application for removal and remediation of polychlorinated biphenyls (pcbs) |
| CN102390914A (en) * | 2011-10-25 | 2012-03-28 | 合肥工业大学 | Method for suppressing hydrogen sulfide release in organic waste anaerobic process |
| CN104071929A (en) * | 2014-06-20 | 2014-10-01 | 张家港格林台科环保设备有限公司 | Method for efficiently removing sulfide in water and special device for method |
| CN104787855A (en) * | 2015-04-22 | 2015-07-22 | 重庆大学 | Preparation method and application of E-Fe<2+>/Fe<0> permeable reactive barrier |
| CN105727963A (en) * | 2016-04-18 | 2016-07-06 | 盐城工学院 | Fe and Cu co-doped nano-sized ZnO photocatalyst and preparation method thereof |
| CN105906159A (en) * | 2016-06-16 | 2016-08-31 | 河海大学 | Double coupling system for enhancing sewage in irrigation district |
| US20170334755A1 (en) * | 2016-05-17 | 2017-11-23 | Texas Tech University System | Surface modification of zero valent iron material for enhanced reactivity for degrading chlorinated contaminants in water |
| CN107459127A (en) * | 2017-07-13 | 2017-12-12 | 盐城工学院 | A kind of regulation and control municipal wastewater pipeline sulphur conversion system in situ and its operation method |
| CN108046427A (en) * | 2018-01-09 | 2018-05-18 | 衢州学院 | Low C/S is than the anaerobic bio-treated method of sulfate-containing organic wastewater under room temperature |
| CN108059229A (en) * | 2017-12-20 | 2018-05-22 | 苏州科技大学 | A kind of method of iron carbon activation persulfate processing high-concentration hardly-degradable alkaline waste liquor |
| CN207933126U (en) * | 2018-01-09 | 2018-10-02 | 衢州学院 | Anaerobic biological treatment apparatus of the low C/S than sulfate-containing organic wastewater under room temperature |
| CN109231719A (en) * | 2018-11-14 | 2019-01-18 | 哈尔滨泽能环保科技有限公司 | It is a kind of for removing the advanced treatment system of heavy metal in sewage plant sewage |
| CN211226566U (en) * | 2019-11-15 | 2020-08-11 | 盐城工学院 | Electricity-zero-valent iron system for accelerating removal of sulfide in sewage pipeline |
-
2019
- 2019-11-15 CN CN201911117681.9A patent/CN110759489A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5935412A (en) * | 1997-06-17 | 1999-08-10 | Atlantis Limited Partnership | Method and apparatus for eliminating odors in sewage systems |
| RU2165892C1 (en) * | 1999-10-20 | 2001-04-27 | Уфимский государственный нефтяной технический университет | Method of cleaning waste water from sulfides |
| WO2007021640A2 (en) * | 2005-08-11 | 2007-02-22 | United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Bimetallic treatment system and its application for removal and remediation of polychlorinated biphenyls (pcbs) |
| CN102390914A (en) * | 2011-10-25 | 2012-03-28 | 合肥工业大学 | Method for suppressing hydrogen sulfide release in organic waste anaerobic process |
| CN104071929A (en) * | 2014-06-20 | 2014-10-01 | 张家港格林台科环保设备有限公司 | Method for efficiently removing sulfide in water and special device for method |
| CN104787855A (en) * | 2015-04-22 | 2015-07-22 | 重庆大学 | Preparation method and application of E-Fe<2+>/Fe<0> permeable reactive barrier |
| CN105727963A (en) * | 2016-04-18 | 2016-07-06 | 盐城工学院 | Fe and Cu co-doped nano-sized ZnO photocatalyst and preparation method thereof |
| US20170334755A1 (en) * | 2016-05-17 | 2017-11-23 | Texas Tech University System | Surface modification of zero valent iron material for enhanced reactivity for degrading chlorinated contaminants in water |
| CN105906159A (en) * | 2016-06-16 | 2016-08-31 | 河海大学 | Double coupling system for enhancing sewage in irrigation district |
| CN107459127A (en) * | 2017-07-13 | 2017-12-12 | 盐城工学院 | A kind of regulation and control municipal wastewater pipeline sulphur conversion system in situ and its operation method |
| CN108059229A (en) * | 2017-12-20 | 2018-05-22 | 苏州科技大学 | A kind of method of iron carbon activation persulfate processing high-concentration hardly-degradable alkaline waste liquor |
| CN108046427A (en) * | 2018-01-09 | 2018-05-18 | 衢州学院 | Low C/S is than the anaerobic bio-treated method of sulfate-containing organic wastewater under room temperature |
| CN207933126U (en) * | 2018-01-09 | 2018-10-02 | 衢州学院 | Anaerobic biological treatment apparatus of the low C/S than sulfate-containing organic wastewater under room temperature |
| CN109231719A (en) * | 2018-11-14 | 2019-01-18 | 哈尔滨泽能环保科技有限公司 | It is a kind of for removing the advanced treatment system of heavy metal in sewage plant sewage |
| CN211226566U (en) * | 2019-11-15 | 2020-08-11 | 盐城工学院 | Electricity-zero-valent iron system for accelerating removal of sulfide in sewage pipeline |
Non-Patent Citations (4)
| Title |
|---|
| 刘华平, 李田, 段小平: "污水管道的硫化氢腐蚀及其控制", 市政技术, no. 05, pages 282 * |
| 卞爱琴;远野;付强;张璐璐;周飞;陈正梁;陈天明;王爱杰;丁成;: "不同流速下零价铁调控污水管道节点硫转化的影响", 环境化学, no. 01 * |
| 杨世迎;任腾飞;张艺萱;郑迪;辛佳;: "水环境中ZVI/氧化剂体系及其电子迁移作用机制", 化学进展, no. 04 * |
| 王怡;朱杜洁;王社平;许小冰;蒋欣;彭党聪;: "铁盐投加对模拟污水管道***H_2S控制", 土木建筑与环境工程, no. 05 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102295385B (en) | Garbage percolate processing technology | |
| CN105461151A (en) | Landfill leachate treatment technology | |
| CN105540992A (en) | Landfill leachate treatment technology | |
| CN101870543A (en) | Landfill percolate treatment novel process | |
| US20240140848A1 (en) | Electrochemical nitrogen and phosphorus removal device and method | |
| CN101580324A (en) | Method applied to new village sewage treatment | |
| CN107459127B (en) | In-situ regulation and control municipal sewage pipeline sulfur conversion system and operation method thereof | |
| CN106673178A (en) | Polluted water body in-situ restoration microbial oxidation reduction device and restoration method | |
| CN103332788A (en) | Multi-stage anaerobic-aerobic combined nitrogen and phosphorus removing device and method for rural domestic sewage | |
| CN111825203A (en) | Artificial wetland sewage treatment device integrating ammoniation, nitrification, denitrification and application thereof | |
| CN107721101B (en) | Micro-power sewage integrated treatment equipment | |
| CN112979090A (en) | Method suitable for treating percolate of small and medium-sized refuse transfer stations | |
| CN211226566U (en) | Electricity-zero-valent iron system for accelerating removal of sulfide in sewage pipeline | |
| CN110759489A (en) | Electricity-zero-valent iron system for accelerating removal of sulfide in sewage pipeline | |
| CN102701517B (en) | Method for jointly treating acid mine wastewater by using organic matter and carbonate rock | |
| CN110980949A (en) | Activated sludge multiplication method | |
| CN213596107U (en) | Ecological energy-saving rural sewage treatment equipment and system | |
| WO2020000214A1 (en) | Wastewater recycling treatment apparatus | |
| CN213446736U (en) | Oil field waste water treatment device | |
| CN210764871U (en) | Small-size riverway water body repair system | |
| CN204779252U (en) | Domestic sewage's device is handled to fe -C+A2O technology | |
| CN211339178U (en) | AO constructed wetland of nitrogen and phosphorus removal is reinforceed to town sewage factory tail water | |
| CN201224703Y (en) | Unpowered efficient dispersing domestic sewage treatment complete equipment | |
| CN111732295A (en) | Combined building reclaimed water recycling system | |
| CN110577333A (en) | Novel process for treating percolate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |