CN115417515A - Green treatment device for germanium processing wastewater and germanium recovery method - Google Patents
Green treatment device for germanium processing wastewater and germanium recovery method Download PDFInfo
- Publication number
- CN115417515A CN115417515A CN202211039582.5A CN202211039582A CN115417515A CN 115417515 A CN115417515 A CN 115417515A CN 202211039582 A CN202211039582 A CN 202211039582A CN 115417515 A CN115417515 A CN 115417515A
- Authority
- CN
- China
- Prior art keywords
- germanium
- membrane
- water
- flow
- treatment
- 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
- 229910052732 germanium Inorganic materials 0.000 title claims abstract description 146
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 title claims abstract description 145
- 238000012545 processing Methods 0.000 title claims abstract description 70
- 239000002351 wastewater Substances 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000011084 recovery Methods 0.000 title claims abstract description 10
- 239000012528 membrane Substances 0.000 claims abstract description 136
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 118
- 238000004519 manufacturing process Methods 0.000 claims abstract description 32
- 239000008213 purified water Substances 0.000 claims abstract description 19
- 238000001471 micro-filtration Methods 0.000 claims description 25
- 238000001223 reverse osmosis Methods 0.000 claims description 22
- 238000001728 nano-filtration Methods 0.000 claims description 13
- 238000000108 ultra-filtration Methods 0.000 claims description 13
- 239000011148 porous material Substances 0.000 claims description 12
- 238000010992 reflux Methods 0.000 claims description 11
- 239000000523 sample Substances 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 238000004065 wastewater treatment Methods 0.000 claims description 4
- 239000002033 PVDF binder Substances 0.000 claims description 3
- 238000005111 flow chemistry technique Methods 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 10
- 238000005374 membrane filtration Methods 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 3
- 239000007787 solid Substances 0.000 description 16
- 239000002184 metal Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 238000001514 detection method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 3
- 230000003000 nontoxic effect Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000003082 abrasive agent Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009614 chemical analysis method Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- -1 germanium metals Chemical class 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 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
- C02F1/00—Treatment of water, waste water, or sewage
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/44—Time
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Nanotechnology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a green treatment device for germanium processing wastewater and a germanium recovery method, which comprise the following steps: the intelligent backflow treatment system can filter purified water which does not reach the treatment standard again until the purified water flows out after reaching the standard, the backflow process is controlled in a full-automatic mode, extra manpower is not required to be invested, the technical problem caused by reduction of the membrane filtration efficiency is solved, the utilization rate of the multistage membrane is improved, the materials are made the best of each other, the frequency of replacing or cleaning the multistage membrane is reduced, and the production cost is reduced.
Description
Technical Field
The invention relates to the technical field of industrial wastewater treatment, in particular to a green treatment device for germanium processing wastewater and a germanium recovery method.
Background
Germanium has various special properties, so that the germanium can be widely and importantly applied to the fields of semiconductors, aerospace measurement and control, nuclear physical detection, optical fiber communication and the like, and is an important strategic resource; with the development of the optical fiber communication industry, the application of infrared optics in military and civil fields is continuously expanded, the use of solar cells in space and the like, the global demand of germanium is continuously and stably increased.
The production processing treatment process of germanium can consume a large amount of water, produces simultaneously a large amount of waste water that contains nontoxic harmless solid suspended solids such as germanium and other abrasive materials, sand material, if not processing, not only can cause the loss of valuable metal germanium, also can cause the waste of water resource, and the difficulty and the cost that contain solid suspended solids's waste water also can increase post treatment simultaneously. At present, a method for recovering germanium by standing and settling is conventionally adopted for treating germanium-containing wastewater, however, by adopting the method, a metal germanium part exists in a suspended state, and the germanium cannot be effectively captured and recovered by simply standing and settling, so that the loss of germanium is caused; in addition, the method has long standing time of the germanium wastewater, new production wastewater flows in the standing process, the static balance is broken, the germanium loss is more, and the treated wastewater cannot meet the standard requirement, so that the resource waste is caused.
The prior art has a method for recovering germanium by multi-stage membrane filtration, but the method has the following defects: after filtering or processing the waste liquid with large particle size for many times, the filtering efficiency of the membrane is reduced because the multistage membrane is aged or the membrane pore size is blocked, the production cost is increased if the membrane is replaced with a new one, and extra manpower or detection cost is needed if the secondary filtering is selected.
Disclosure of Invention
In order to solve or partially solve the problems in the related art, the invention provides a green treatment device for germanium processing wastewater and a germanium recovery method.
The application of the invention provides a germanium processing wastewater green treatment device in a first aspect, which comprises: the system comprises a continuous flow guiding and trapping system, a multi-stage membrane treatment system and an intelligent backflow treatment system;
the continuous flow guide trapping system comprises a water inlet pipe, a trapping groove, 4-10 flow guide plates and water outlets, wherein the water inlet pipe and the water outlets are respectively arranged on two sides of the trapping groove, and the flow guide plates are arranged in the trapping groove at intervals;
furthermore, the included angle between the guide plate and the bottom surface of the collecting groove is 20-45 degrees.
Furthermore, a plurality of grooves are formed in the upper surface of the guide plate, the depth of each groove is 10-20 mm, and the width of each groove is 10-15 mm. Through right guide plate inclination and groove structure's setting, nontoxic harmless solid suspended solid and germanium sediment such as abrasive material, sand material in can effectively the entrapment germanium processing waste water, recycle germanium metal and improve the treatment effeciency of multistage membrane processing system to waste water.
Preferably, the upper surface of the treatment box is detachably connected, and when the amount of the trapped matters on the flow guide plate in the treatment box reaches a certain amount, the trapped matters on the flow guide plate can be removed.
Furthermore, the height difference between two adjacent guide plates is 100-350 mm, and the guide plates are sequentially increased along the water flow direction. Through the setting of difference in height, can prolong waste water with the contact time of guide plate improves the entrapment efficiency to the solid suspended solid.
Multistage membrane processing system includes the water inlet, handles case, microfiltration membrane, milipore filter, receives filter membrane, reverse osmosis membrane and outlet pipe, microfiltration membrane, milipore filter, receive filter membrane and reverse osmosis membrane interval in proper order set up handle the incasement, and will it cuts apart into a plurality of cavities to handle the case, it is close to handle the case be provided with the water inlet on the lateral wall of microfiltration membrane, and be close to be provided with the outlet pipe on the lateral wall of reverse osmosis membrane, multistage membrane processing system's water inlet lead to pipe and set up the water pump on the water pipe with the delivery port of continuous water conservancy diversion entrapment system is connected.
Furthermore, the aperture of the microfiltration membrane is 0.1-0.5 μm, the aperture of the ultrafiltration membrane is 0.01-0.1 μm, the aperture of the nanofiltration membrane is 0.001-0.01 μm, and the aperture of the reverse osmosis membrane is 0.00001-0.0001 μm.
Further, the microfiltration membrane material is PVC or PP, the ultrafiltration membrane material is PVC or PVDF, the nanofiltration membrane material is PA, and the reverse osmosis membrane is a polymer composite membrane. Through the injecing to above-mentioned multistage membrane aperture, material to and micro-filtration membrane, milipore filter, receive setting of arranging in proper order of filter membrane and reverse osmosis membrane, realized handling step by step of waste water, effectively reduced the content of dissolubility solid in the germanium processing waste water, improved waste water treatment efficiency and purifying effect.
Intelligence backward flow processing system includes only to flow valve, back flow, backwash pump, germanium detector and PLC backflow control ware, only to flow valve sets up inside the outlet pipe, the back flow both ends respectively with the outlet pipe with handle the case intercommunication, the backwash pump sets up on the back flow, the detecting head of germanium detector sets up inside the outlet pipe, PLC backflow control ware respectively with only to flow valve, germanium detector and backwash pump electric connection.
Further, the return pipe is communicated with the side wall or the upper wall of the treatment tank close to the microfiltration membrane.
Furthermore, a probe of the germanium detector is arranged in the water outlet pipe and is positioned between the processing box and the flow stopping valve.
In a second aspect of the present application, there is provided a germanium recovery method, comprising the steps of:
a, enabling the germanium processing wastewater to flow into the trapping tank through the water inlet pipe, and controlling the flow time of the germanium processing wastewater in the trapping tank to be 10-15 h;
b, enabling the germanium processing wastewater flowing out of the trapping tank to flow into a treatment box of the multistage membrane treatment system from a water outlet, and controlling the flow rate of the germanium processing wastewater in the treatment box to be 50-100L/h;
c, the purified production water in the treatment box of the multi-stage membrane treatment system flows into the water outlet pipe and is detected by the germanium detector probe, if the germanium content in the purified production water exceeds a set threshold value, the PLC controller sends an electric signal to control the stop valve to be closed, the reflux pump is started, the production purified water with the overproof germanium content flows back to the treatment box of the multi-stage membrane treatment system through the reflux pipe to be filtered again until the germanium content in the production purified water in the water outlet pipe of the multi-stage membrane treatment system is smaller than the set threshold value, the PLC controller sends an electric signal to control the stop valve to be opened, the reflux pump is closed, and the production purified water with the standard germanium content is discharged from the water outlet pipe.
And d, collecting the germanium mud deposited on the guide plates of the continuous guide and capture system and the filter membranes of the multistage membrane treatment system, and the produced purified water with the germanium content reaching the standard discharged from the water outlet pipe.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
The invention has the beneficial technical effects that:
(1) The green treatment device has a simple structure and an obvious effect, can enable the treated wastewater to reach the standard of recycling production water, realizes the cyclic utilization of the production water, and reduces the waste of water resources.
(2) According to the invention, through the arrangement of the inclination angle of the guide plate, the groove structure and the multi-stage membrane and the control of the flow time and flow speed of wastewater in the green treatment device, nontoxic and harmless solid suspended matters such as grinding materials and sand materials, germanium slag and germanium mud in the germanium processing wastewater can be effectively collected, the recycling of germanium metal is realized, and the loss of metal germanium is reduced.
(3) The intelligent backflow treatment system can filter purified water which cannot reach the treatment standard again until the purified water flows out after reaching the standard, the backflow process is fully automatically controlled, additional manpower is not required to be invested, the technical problem caused by reduction of membrane filtration efficiency is solved, the utilization rate of the multi-stage membrane is improved, the multi-stage membrane is fully utilized, the frequency of replacing or cleaning the multi-stage membrane is reduced, and the production cost is reduced.
Drawings
FIG. 1 is a schematic structural view of a green treatment apparatus for germanium processing wastewater according to the present invention;
wherein: the method comprises the following steps of 1-continuous flow guide and trapping system, 11-water inlet pipe, 12-trapping tank, 13-guide plate, 14-water outlet, 2-multistage membrane treatment system, 21-water inlet, 22-treatment box, 23-micro-filtration membrane, 24-ultra-filtration membrane, 25-nano-filtration membrane, 26-reverse osmosis membrane, 27-water outlet pipe, 3-intelligent backflow treatment system, 31-germanium detector, 32-check valve, 33-backflow pipe, 34-backflow pump, 4-water pipe and 5-water pump.
FIG. 2 is a schematic view of a groove structure of a guide plate in the green treatment device for germanium processing wastewater of the present invention.
Wherein: 13-guide plate, 131-groove.
Detailed Description
Alternative embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While the drawings show alternative embodiments of the present application, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
As shown in figure 1, the green treatment device for the germanium processing wastewater in the application of the invention comprises: the system comprises a continuous diversion capture system 1, a multi-stage membrane treatment system 2 and an intelligent backflow treatment system 3;
the continuous flow-guiding trapping system 1 comprises a water inlet pipe 11, a trapping tank 12, a flow guide plate 13 and a water outlet 14, wherein the water inlet pipe 11 and the water outlet 14 are respectively arranged on two sides of the trapping tank 12, the number of the flow guide plate 13 is 4-10, and specifically, the number of the flow guide plate 13 can be 4, 5, 6, 8 or 10. And are arranged at intervals in the trap tank 12; the continuous diversion trapping system 1 is used for trapping most germanium metals and other solid suspended matters in the germanium processing wastewater;
the multistage membrane treatment system 2 comprises a water inlet 21, a treatment tank 22, a microfiltration membrane 23, an ultrafiltration membrane 24, a nanofiltration membrane 25, a reverse osmosis membrane 26 and a water outlet pipe 27, wherein the microfiltration membrane 23, the ultrafiltration membrane 24, the nanofiltration membrane 25 and the reverse osmosis membrane 26 are sequentially arranged in the treatment tank 22 at intervals, the treatment tank 22 is divided into a plurality of chambers, the side wall of the treatment tank 22 close to the microfiltration membrane 23 is provided with the water inlet 21, the side wall of the treatment tank 22 close to the reverse osmosis membrane 26 is provided with the water outlet pipe 27, and the water inlet 21 of the multistage membrane treatment system 2 is connected with the water outlet 14 of the continuous diversion and trapping system 1 through a water pipe 4 and a water pump 5 arranged on the water pipe 4; the multistage membrane treatment system 2 is used for recovering suspended matters and fine particles of the filtered germanium, and further achieves the aim of purifying the germanium processing wastewater
Intelligence backward flow processing system 3 is including ending valve 32, back flow pipe 33, backwash pump 34, germanium detector 31 and PLC backflow control ware, it sets up inside outlet pipe 27 to end valve 32, back flow pipe 22 both ends respectively with outlet pipe 27 and handle case 22 intercommunication, backwash pump 34 sets up on back flow pipe 33, germanium detector 31's detecting head sets up inside outlet pipe 27, PLC backflow control ware respectively with end valve 32, germanium detector 31 and backwash pump 34 electric connection. . The intelligent backflow treatment system 3 can filter the purified water which cannot reach the treatment standard again, the purified water flows out until the purified water reaches the standard, the backflow process is fully automatically controlled, extra manpower does not need to be input, the technical problem caused by the reduction of the membrane filtration efficiency is solved, the utilization rate of the multi-stage membrane is improved, the frequency of replacing or cleaning the multi-stage membrane is reduced, and the production cost is reduced.
In one embodiment of the present application, the angle between the deflector 13 and the bottom of the trap tank 12 is 20-45 °. Specifically, the angle between the baffle 13 and the bottom surface of the trap tank 12 may be 20 °,25 °, 30 °, 40 °, or 45 °.
Preferably, the included angle between the guide plate 13 and the bottom surface of the trapping groove 12 is 30 °, and the trapping efficiency of the guide plate 13 on germanium metal and other suspended solids can be improved by setting the inclination angle of the guide plate 13.
In one embodiment of the present application, the upper surface of the baffle 13 is provided with a plurality of grooves 131, and the grooves 131 have a depth of 10-20 mm and a width of 10-15 mm. As shown in fig. 2, a plurality of grooves 131 are disposed on the upper surface of the baffle 13, in the embodiment of the present invention, the size of the grooves 131 is not limited strictly, specifically, the depth of the grooves 131 may be 10mm, 15mm or 20mm, and the width of the grooves 131 may be 10mm, 12mm, 13mm or 15mm.
Preferably, the groove 131 has a depth of 20mm and a width of 15mm; through the arrangement of the groove 131, the flow resistance of germanium metal and solid suspended matters in the germanium processing wastewater can be improved, and the trapping efficiency of various solid suspended matters can be further improved;
in one embodiment of the present application, the height difference between two adjacent 13 baffles is 100-350 mm, and the heights are sequentially increased along the water flow direction. In particular, the height difference may be 100mm, 150mm, 200mm, 250mm, 300mm or 350mm.
Preferably, the height difference between the guide plates 13 is 200mm, and through the arrangement of the height difference, the contact time of the waste water and the guide plates 13 is prolonged, and the capture efficiency of the germanium metal and the suspended solid is improved.
In one embodiment of the present application, the pore size of the microfiltration membrane 23 is 0.1 to 0.5 μm, the pore size of the ultrafiltration membrane 24 is 0.01 to 0.1 μm, the pore size of the nanofiltration membrane 25 is 0.001 to 0.01 μm, and the pore size of the reverse osmosis membrane 26 is 0.00001 to 0.0001 μm.
Preferably, the pore size of the microfiltration membrane 23 is 0.4 μm; the pore diameter of the ultrafiltration membrane 24 is 0.08 mu m; the aperture of the nanofiltration membrane 25 is 0.003 mu m; the aperture of the reverse osmosis membrane 26 is 0.00005 μm. Through the injeciton to above-mentioned multistage membrane aperture, can realize the collection to germanium metal and other suspended solid in the germanium processing waste water to can improve the treatment effeciency of germanium processing waste water.
In one embodiment of the present application, the microfiltration membrane 23 is made of PVC or PP; the ultrafiltration membrane 24 is made of PVC or PVDF; the nanofiltration membrane 25 is made of PA; the reverse osmosis membrane 26 is a polymer composite membrane. The polymer composite membrane is a conventional product in the field, and can meet the pore size requirement of the invention. Through the limited material, the support strength of each filter membrane can be improved, and the bearing osmotic pressure is improved.
In one embodiment of the present application, the probe head of the germanium detector 31 is disposed inside the effluent pipe between the treatment tank 22 and the stop valve 32.
In one embodiment of the present application, the return pipe 33 communicates with the side wall or the upper wall of the treatment tank 22 near the microfiltration membrane 23.
In one embodiment of the present application, a germanium recovery method is provided, which includes the steps of:
a, enabling the germanium processing wastewater to flow into a trapping tank 12 of the continuous diversion trapping system 1 through the water inlet pipe 11, and controlling the flow time of the germanium processing wastewater in the trapping tank 12 to be 10-15 h;
b, enabling the germanium processing wastewater flowing out of the catching tank 12 to flow into a treatment tank 22 of the multistage membrane treatment system 2 from a water outlet, and controlling the flow rate of the germanium processing wastewater in the treatment tank 22 to be 50-100L/h;
c, the purified production water in the treatment box 22 of the multi-stage membrane treatment system 2 flows into the water outlet pipe 4, the purified production water is detected by the germanium detector 31, if the germanium content in the purified production water exceeds a set threshold value, the PLC sends an electric signal to control the stop valve 32 to be closed, the reflux pump 34 is started, the production purified water with the overproof germanium content flows back to the treatment box 22 of the multi-stage membrane treatment system 2 through the reflux pipe 33 to be filtered again until the germanium content in the production purified water in the water outlet pipe 27 of the multi-stage membrane treatment system 2 is smaller than the set threshold value, the PLC sends an electric signal to control the stop valve 32 to be opened, the reflux pump 34 is closed, and the production purified water with the standard germanium content is discharged from the water outlet pipe 27.
And d, collecting germanium mud deposited on the guide plate 13 of the continuous guide and capture system 1 and the filter membranes of all stages of the multistage membrane treatment system 2, and producing purified water with the germanium content reaching the standard discharged from the water outlet pipe 27.
For the sake of clarity, the invention is further illustrated by the following examples
Example 1
The embodiment provides a green treatment device for germanium processing wastewater, as shown in fig. 1 and fig. 2, the green treatment device comprises a continuous diversion and capture system 1 and a multi-stage membrane treatment system 2 communicated with the continuous diversion and capture system 1.
The continuous diversion and trapping system 1 comprises a water inlet pipe 11, a trapping tank 12, 4 diversion plates 13 and a water outlet 14, wherein the water inlet pipe 11 and the water outlet 14 are respectively arranged at two sides of the trapping tank 12 and are respectively used for controlling the inflow and outflow of the germanium processing wastewater, the diversion plates 13 are arranged in the trapping tank 12 at intervals, the included angle between each diversion plate 13 and the bottom surface of the trapping tank 12 is 30 degrees, the height difference between every two adjacent diversion plates 13 is 200mm, and the diversion plates are sequentially increased along the water flowing direction; a plurality of grooves 131 are formed in the upper surface of the guide plate 13, and the depth of each groove 131 is 20mm, and the width of each groove 131 is 15mm;
the multistage membrane treatment system 2 comprises a treatment tank 22, a microfiltration membrane 23, an ultrafiltration membrane 24, a nanofiltration membrane 25 and a reverse osmosis membrane 26, wherein the microfiltration membrane 23, the ultrafiltration membrane 24, the nanofiltration membrane 25 and the reverse osmosis membrane 26 are sequentially arranged in the treatment tank 22 at intervals, the treatment tank 22 is divided into a plurality of chambers, a water inlet is formed in the side wall, close to the microfiltration membrane 23, of the treatment tank 22, a water outlet pipe 27 is formed in the side wall, close to the reverse osmosis membrane 26, of the treatment tank 22, and the water inlet 21 is connected with the water outlet 14 through a water pipe 4; wherein the aperture of the micro-filtration membrane 23 is 0.4 μm; the aperture of the ultrafiltration membrane 24 is 0.08 mu m; the aperture of the nanofiltration membrane 25 is 0.003 mu m; the aperture of the reverse osmosis membrane 26 is 0.00005 μm; the upper surface of the treatment tank 22 is detachably connected.
Example 2
This example (# 1) provides a method for germanium recovery using the green treatment apparatus for germanium processing wastewater provided in example 1, the method including the steps of:
(a) The germanium processing wastewater (the germanium content is 2.5 g/L) flows into the trapping tank 12 through the water inlet pipe 11, and the flowing time of the germanium processing wastewater in the trapping tank 12 is controlled to be 12 h;
(b) The germanium processing wastewater flowing out of the catching tank 12 flows into the treatment tank 22, and the flow rate of the germanium processing wastewater is controlled to be 60L/h;
(c) Collecting the germanium mud collected on the guide plate 13 and the filter membranes (23, 24, 25, 26) and the purified production water at the water outlet pipe 27 of the treatment tank 22 of the multi-stage membrane treatment system 2.
Example 3
This example (# 2) provides a method for recovering germanium using the green germanium processing wastewater treatment apparatus provided in example 1, including the steps of:
(a) Germanium processing wastewater (the germanium content is 2.5 g/L) flows into the capture tank 12 through the water inlet pipe 11, and the flowing time of the germanium processing wastewater in the capture tank 12 is controlled to be 12 h;
(b) The germanium processing wastewater flowing out of the catch tank 12 flows into the treatment tank 22, and the flow rate of the germanium processing wastewater is controlled to be 80L/h;
(c) The guide plate 13, the germanium mud collected on each stage of filter membrane (23, 24, 25, 26) and the purified production water at the water outlet pipe 27 are collected.
Example 4
This example (# 3) provides a method for recovering germanium using the green processing apparatus for germanium processing wastewater provided in example 1, including the steps of:
(a) Germanium processing wastewater (the germanium content is 2.5 g/L) flows into the capture tank 12 through the water inlet pipe 11, and the flowing time of the germanium processing wastewater in the capture tank 12 is controlled to be 15 h;
(b) The germanium processing wastewater flowing out of the catching tank 12 flows into the treatment tank 22, and the flow rate of the germanium processing wastewater is controlled to be 80L/h;
(c) Collecting the germanium mud collected on the guide plate 13 and the filter membranes (23, 24, 25, 26) and the purified production water at the water outlet pipe 27 of the treatment tank 22 of the multi-stage membrane treatment system 2.
The content of germanium in the germanium processing wastewater before and after treatment is detected by adopting a chemical analysis method and an ICP-MS analysis method, and the detection result is shown in Table 1:
suspended matters in the germanium processing wastewater before and after treatment are detected by a gravimetric method, and the detection results are shown in table 1.
TABLE 1 germanium recovery effect of germanium processing wastewater
Example 5
The embodiment provides a method for recovering germanium by using the green treatment device for germanium processing wastewater provided in embodiment 1, which comprises the following steps:
a. step b is the same as in the example
c. The purified production water at the water outlet pipe 27 flows through a detection head of the germanium detector 31, if the germanium content exceeds 0.000001g/L, the germanium detector 31 outputs an electric signal to the PLC, the PLC sends an electric signal to control the stop valve 32 to be closed, the reflux pump 34 is started, the purified production water flows back to the treatment box 22 to be re-filtered, and after the germanium content at the water outlet pipe 27 is less than 0.000001g/L, the germanium detector 31 outputs an electric signal to the PLC, the PLC sends an electric signal to control the stop valve 32 to be opened, the reflux pump 33 is stopped, and the purified production water is discharged;
d. and collecting germanium mud trapped on the guide plate 13 and filter membranes (23, 24, 25 and 26) at all stages and purified production water at a water outlet pipe 27 of a treatment tank of the multistage membrane treatment system.
Detecting the content of germanium in the treated germanium processing wastewater by adopting a chemical analysis and ICP-MS analysis method, wherein the detection result is as follows: the germanium content is 0.0000009g/L, and the suspended matter content is 15mg/L.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or improvements to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (11)
1. The utility model provides a germanium processing waste water green processing device which characterized in that includes: the system comprises a continuous flow guiding and trapping system, a multi-stage membrane treatment system and an intelligent backflow treatment system;
the continuous flow guide trapping system comprises a water inlet pipe, a trapping groove, 4-10 flow guide plates and water outlets, wherein the water inlet pipe and the water outlets are respectively arranged on two sides of the trapping groove, and the flow guide plates are arranged in the trapping groove at intervals;
multistage membrane processing system includes the water inlet, handles case, microfiltration membrane, milipore filter, receives filter membrane, reverse osmosis membrane and outlet pipe, microfiltration membrane, milipore filter, receive filter membrane and reverse osmosis membrane interval in proper order set up handle the incasement, and will it cuts apart into a plurality of cavities to handle the case, it is close to handle the case be provided with the water inlet on the lateral wall of microfiltration membrane, and be close to be provided with the outlet pipe on the lateral wall of reverse osmosis membrane, multistage membrane processing system's water inlet lead to pipe and set up the water pump on the water pipe with the delivery port of continuous water conservancy diversion entrapment system is connected.
2. Intelligence backward flow processing system is including ending flow valve, back flow, backwash pump, germanium detector and PLC backward flow controller, it sets up inside the outlet pipe to end the flow valve, the back flow both ends respectively with the outlet pipe with handle the case intercommunication, the backwash pump sets up on the back flow, the detecting head of germanium detector sets up inside the outlet pipe, PLC backward flow controller respectively with end flow valve, germanium detector and backwash pump electric connection.
3. The green treatment device for germanium processing wastewater according to claim 1, wherein the angle between the guide plate and the bottom surface of the trap tank is 20-45 °.
4. The green treatment device for the germanium processing wastewater according to claim 1, wherein a plurality of grooves are formed in the upper surface of the guide plate, the depth of each groove is 10-20 mm, and the width of each groove is 10-15 mm.
5. The green treatment device for the germanium processing wastewater as claimed in claim 1, wherein the height difference between two adjacent guide plates is 100-350 mm, and the guide plates are sequentially increased along the water flow direction.
6. The green treatment device for germanium processing wastewater according to claim 1, wherein the pore size of the microfiltration membrane is 0.1-0.5 μm, the pore size of the ultrafiltration membrane is 0.01-0.1 μm, the pore size of the nanofiltration membrane is 0.001-0.01 μm, and the pore size of the reverse osmosis membrane is 0.00001-0.0001 μm.
7. The green germanium processing wastewater treatment device according to claim 1, wherein the microfiltration membrane is made of PVC or PP, the ultrafiltration membrane is made of PVC or PVDF, the nanofiltration membrane is made of PA, and the reverse osmosis membrane is a polymer composite membrane.
8. The green treatment device for the germanium processing wastewater as claimed in claim 1, wherein the return pipe is communicated with the side wall or the upper wall of the treatment tank close to the microfiltration membrane.
9. The apparatus for green treatment of germanium processing wastewater according to claim 1, wherein the probe of the germanium detector is disposed inside the outlet pipe between the treatment tank and the stop valve.
10. A germanium recovery method is characterized by comprising the following steps:
a, enabling the germanium processing wastewater to flow into the trapping tank through the water inlet pipe, and controlling the flow time of the germanium processing wastewater in the trapping tank to be 10-15 h;
b, enabling the germanium processing wastewater flowing out of the trapping tank to flow into a treatment box of the multistage membrane treatment system from a water outlet, and controlling the flow rate of the germanium processing wastewater in the treatment box to be 50-100L/h;
c, the purified production water in the treatment box of the multi-stage membrane treatment system flows into the water outlet pipe and is detected by the germanium detector probe, if the germanium content in the purified production water exceeds a set threshold value, the PLC controller sends an electric signal to control the stop valve to be closed, the reflux pump is started, the production purified water with the overproof germanium content flows back to the treatment box of the multi-stage membrane treatment system through the reflux pipe to be filtered again until the germanium content in the production purified water in the water outlet pipe of the multi-stage membrane treatment system is smaller than the set threshold value, the PLC controller sends an electric signal to control the stop valve to be opened, the reflux pump is closed, and the production purified water with the standard germanium content is discharged from the water outlet pipe.
11. Collecting the germanium mud deposited on the guide plates of the continuous guide and capture system and the filter membranes of the multistage membrane treatment system, and the production purified water with the standard germanium content discharged from the water outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211039582.5A CN115417515A (en) | 2022-08-29 | 2022-08-29 | Green treatment device for germanium processing wastewater and germanium recovery method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211039582.5A CN115417515A (en) | 2022-08-29 | 2022-08-29 | Green treatment device for germanium processing wastewater and germanium recovery method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115417515A true CN115417515A (en) | 2022-12-02 |
Family
ID=84201148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211039582.5A Pending CN115417515A (en) | 2022-08-29 | 2022-08-29 | Green treatment device for germanium processing wastewater and germanium recovery method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115417515A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206872538U (en) * | 2017-02-27 | 2018-01-12 | 青岛经济技术开发区海尔热水器有限公司 | Water purification system |
| CN109293031A (en) * | 2018-11-16 | 2019-02-01 | 云南驰宏国际锗业有限公司 | A kind of processing system and processing method of germanium processing waste water |
| CN112047515A (en) * | 2020-07-31 | 2020-12-08 | 张家港市大新污水处理有限公司 | Discharged water chromaticity purification process |
| CN112393773A (en) * | 2020-11-25 | 2021-02-23 | 马鞍山揽月工业设计工作室 | Industrial wastewater and waste gas emission monitoring system |
-
2022
- 2022-08-29 CN CN202211039582.5A patent/CN115417515A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206872538U (en) * | 2017-02-27 | 2018-01-12 | 青岛经济技术开发区海尔热水器有限公司 | Water purification system |
| CN109293031A (en) * | 2018-11-16 | 2019-02-01 | 云南驰宏国际锗业有限公司 | A kind of processing system and processing method of germanium processing waste water |
| CN112047515A (en) * | 2020-07-31 | 2020-12-08 | 张家港市大新污水处理有限公司 | Discharged water chromaticity purification process |
| CN112393773A (en) * | 2020-11-25 | 2021-02-23 | 马鞍山揽月工业设计工作室 | Industrial wastewater and waste gas emission monitoring system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8828224B2 (en) | Device for purifying oily wastewater | |
| CN100572306C (en) | Oil-contained waste water treatment system that a kind of saltiness is high and technology | |
| JPH07112185A (en) | Waste water treating device and washing method therefor | |
| EP2342316A1 (en) | Method for the filtration of a bioreactor liquid from a bioreactor; cross-flow membrane module, and bioreactor membrane system | |
| CN105293782A (en) | System for treating and recycling waste water resulting from lithium battery production | |
| CN103349859B (en) | Ceramic filter apparatus for separating calcium carbonate solution, and process thereof | |
| CN102583647A (en) | Industrial wastewater reuse and treatment equipment with tubular micro-filtration membrane and process flow thereof | |
| CN112028270A (en) | Concentration treatment device and treatment method for chemical nickel plating rinsing wastewater | |
| CN202164182U (en) | Sewage purification device | |
| CN115417515A (en) | Green treatment device for germanium processing wastewater and germanium recovery method | |
| CN210313765U (en) | Fluorine-containing high-salinity wastewater recycling system | |
| CN205088040U (en) | Sewage treatment plant carries mark technological transformation degree of depth filtration system | |
| KR101392755B1 (en) | Wastewater disposal plant using tubular membrane | |
| CN2587852Y (en) | Super filtering apparatus for automatic sewage treatment | |
| CN205892904U (en) | A integration equipment for automaticallying process sewage | |
| CN212581630U (en) | Ceramic flat membrane treatment device for coal-containing wastewater of power plant | |
| KR101469634B1 (en) | Water treatment system use of tubular filter module | |
| CN208949028U (en) | A kind of processing system of coal mine drainage water | |
| CN202096888U (en) | High-efficiency and energy-saving membrane separation device | |
| CN207986764U (en) | A kind of tubular type microfiltration systems handle the device of wet electric waste water | |
| CN110078247A (en) | A kind of processing system and processing method of germanium processing waste water | |
| CN207056129U (en) | A kind of murexide mother liquor pretreatment unit | |
| CN210993306U (en) | Recovery processing device suitable for industrial cleaning agent | |
| CN217392064U (en) | Oily wastewater treatment device | |
| CN104785109A (en) | Membrane unit provided with scrubbing mechanism and water purifier using membrane unit |
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 |