CN204981430U - Adopt tubular micro -filtration membrane's silver -colored effluent disposal system that contains - Google Patents
Adopt tubular micro -filtration membrane's silver -colored effluent disposal system that contains Download PDFInfo
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- CN204981430U CN204981430U CN201520760851.6U CN201520760851U CN204981430U CN 204981430 U CN204981430 U CN 204981430U CN 201520760851 U CN201520760851 U CN 201520760851U CN 204981430 U CN204981430 U CN 204981430U
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- Prior art keywords
- reactive tank
- silver
- tubular membrane
- reaction
- waste water
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Abstract
The utility model relates to an adopt tubular micro -filtration membrane's silver -colored effluent disposal system that contains, including naoh reaction, sodium chloride reaction, concentrated groove, tubular membrane assembly, filtration water tank, mud storage tank and filter press, naoh reaction and waste water water inlet intercommunication are provided with the sodium chloride reaction after the naoh reaction, naoh reaction and sodium chloride reaction intercommunication, the delivery port of sodium chloride reaction and the water inlet in concentrated groove intercommunication, the delivery port in concentrated groove and tubular membrane assembly's water inlet intercommunication, in the two -stage reaction, add corresponding chemical agent according to the technology needs to the accurate control is carried out to pH value to the reaction, makes the medicament and the NULL of intaking take place the reaction through abundant mechanical stirring, and the water overflow that contains the precipitate through two -stage reacted enters into the concentrated pond of tubular membrane, and carries out solid -liquid separation through the circulating pump that the sets up waste water injection tubular membrane assembly in with concentrated pond among the tubular membrane assembly.
Description
Technical field
The utility model relates to industrial effluent reusing process field, and especially a kind of tubular type that adopts is micro-
The silver-containing waste water treatment system of filter membrane.
Background technology
In the industrial production, silver-colored and silver-colored related products is widely used in electronics, plating, sense
Luminescent material, chemical engineering industry and scientific research field.Produce various in the every profession and trade relating to silver
Silver-containing waste water, if be directly discharged in environment by silver-containing waste water, not only pollutes the environment, and also will
Cause the waste of silver-colored resource.So, reclaim the middle silver of silver-containing waste water, have great importance.
In silver-containing waste water the method for recover silver mainly contain the precipitator method, electrolytic process, ion exchange method and
Absorption method.The silver that the precipitator method reclaim in silver-containing waste water is exactly in silver-containing waste water, add suitable the moon
Ion makes silver in waste ion with the mode enrichment of precipitation, obtains through filtering, washing drying
The precipitation forms of silver.Widely used in the precipitator method is silver nitride precipitation method, and this method is
Make silver ions become silver nitride precipitation by adding sodium-chlor or hydrochloric acid soln thus realize silver
The enrichment of ion.It can overcome the defect of silver ions and other metal ion co-precipitation, because of
This silver nitride precipitation method be from mix have many kinds of metal ions waste liquid the first-selection side of recover silver
Method.Sometimes in order to ensure silver ions precipitation completely, excessive precipitation agent is generally added, but mistake
Amount also can form soluble chlorine silver complex and solubleness is increased too much.In addition electrolytic process, from
Sub-exchange process and absorption method are also usually used in the process of various silver-containing waste water.
The precipitator method are removed because the limitation of the solid-liquid separation process of traditional settling tank is large in silver process,
Improve clearance, often imply that will add overdose of medicine agent is separated work with fairly large
Skill, makes the floor space of chemical precipitation desilver process synthesis cost and technique increase, also makes operation
More complicated.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of only need and adds less medicine
Amount just can obtain the product water of better water quality, and technical process is shorter, the employing pipe that floor space is less
Decline the silver-containing waste water treatment system of filter membrane.
For solving the problems of the technologies described above, the utility model realizes as follows: this practicality
Novel described a kind of silver-containing waste water treatment system adopting tube type filter membrance, comprises sodium hydroxide anti-
Answer groove, sodium-chlor reactive tank, thickener, tubular membrane component, filtering trough, mud storage tank and
Plate-and-frame filter press; Described sodium hydroxide reactive tank is communicated with water intake, and sodium hydroxide reacts
Be provided with sodium-chlor reactive tank after groove, described sodium hydroxide reactive tank and sodium-chlor reactive tank connect
Logical; The described water outlet of sodium-chlor reactive tank is communicated with the water inlet of thickener; Going out of thickener
The mouth of a river is communicated with the inlet end of tubular membrane component; Described tubular membrane component is provided with drainage go out
Mouth end and concentrate recirculation end, filtered water outlet end is communicated with filtering trough; Concentrate recirculation end and tubular type
The inlet end of membrane module is communicated with, and concentrate recirculation end is provided with sludge condensation liquid discharge pipe,
Sludge condensation liquid discharge pipe is communicated with mud storage tank; Described mud storage tank rear is provided with sheet frame
Pressure filter, the disengaging water out of plate-and-frame filter press is communicated with sodium hydroxide reactive tank.
Be provided with in described sodium hydroxide reactive tank, sodium-chlor reactive tank mechanical stirring device and
PH value monitoring device.
Described sodium hydroxide reactive tank front is provided with and regulates process wastewater trough.
Described tubular membrane component is made up of the tube type filter membrance of cross flow filter, establishes in tubular membrane component
Be equipped with recycle pump.
Fluid level controller is provided with in described thickener.
Described sodium hydroxide reactive tank, sodium-chlor reactive tank are provided with automatic medicine adding apparatus.
The processing method bag that the silver-containing waste water treatment system of above-mentioned employing tube type filter membrance adopts
Draw together following steps:
1) silver-containing waste water through overregulating process is imported sodium hydroxide reactive tank
In, in sodium hydroxide reactive tank, add sodium hydroxide, be fully uniformly mixed, enter
Row pH value regulates, and silver ions also can generate silver hydroxide under strongly alkaline conditions and sink
Form sediment; Silver hydroxide extremely unstable under normal temperature, is easily decomposed into brown and is insoluble in water
Silver suboxide solid suspension is in waste water; This 20 minutes best setting times in stage, entirely
Journey is monitored the pH value of mixed solution;
2) waste water after sodium hydroxide reactive tank is imported sodium-chlor reactive tank
Middle interpolation sodium-chlor, fully stirs, 20 minutes best setting time, a large amount of chlorine
Ion and silver ions can generate silver nitride precipitation, form suspended solids, and by overflowing
The mode of stream passes in thickener, and thickener water capacity should be greater than recycle pump 3 minutes
Water regain, fluid level controller is set in thickener liquid level is monitored in real time;
3) water in thickener is injected in tubular membrane component by recycle pump carry out
Solid-liquid separation;
4) filtrate of tubular membrane component is deposited in filtering trough, by filtrate
PH value be adjusted to neutral after reuse or discharge;
5) water flowing through tubular membrane component will be passed in tubular membrane component again
Row circulating filtration, the concentrated solution containing mud produced in this process will be drained extremely
In mud storage tank;
6) carry out mud by plate-and-frame filter press to the concentrated solution in mud storage tank to take off
Water treatment, the hydrogen that the disengaging water after sludge dewatering treatment will be injected into foremost again
Second time process is carried out in sodium oxide reactive tank; Mud cake after dehydration is concentrated
Process.
Positively effect of the present utility model: a kind of tube type filter membrance that adopts described in the utility model
Silver-containing waste water treatment system, is made up of, at two-stage reaction chemical medicine system and two-stage reaction groove
In groove, need to add corresponding chemical agent according to technique, and essence is carried out to the pH value of reaction
True control, makes medicament and water inlet mix completely by sufficient mechanical stirring and reacts, warp
Cross the concentration basin entering into tubular membrane containing sedimentary water overflow after two-stage reaction, and by pipe
Waste water in concentration basin is injected tubular membrane component and carries out solid by the recycle pump arranged in formula membrane module
Liquid is separated.Two-stage reaction groove is all supporting mechanical stirring device, can make medicament and pending water
Mixing fully, and can avoid throw out to sink at the bottom of pond.
Realize solid-liquid separation thoroughly in follow-up phase by plate-and-frame filter press, solia particle can
Recycle, the rate of recovery, can by solid waste resource recovery close to 100%; Institute in this system
The equipment washing related to is convenient, only needs conventional mineral acid, alkali and oxygenant, does not have
Discharge of wastewater limits.
Tubular membrane component, as the core component filtered, adopts tubular type large discharge cross flow filter, water
Stream is tangential flows through film surface at a high speed, washes away the effect on cleaning film surface while filtering in addition,
Pollutent is not easily accumulated, and face not easily pollutes, and is applicable to filtering the high concentrtion (suspension of the highest 5%
Solids concn) feed liquid close with pollutent particle diameter; Product water turbidity <1NTU after filter, can
Effectively to protect reverse osmosis.Tubular membrane component can replace the multiple tracks such as settling tank and filtration place completely
Reason and filter plant, do not need precipitation and pre-filtering, can directly carry out filtration realize solid particulate and
The separation of liquid, tubular membrane component is soft as the tubular membrane of the desalinating process such as reverse osmosis or vaporizer
Change process, greatly shorten simplifying technical process, decrease system footprint area, after improve
The rate of recovery of continuous equipment, and effectively extend its work-ing life.Compared to other membrane modules, tubular type
Membrane module has that intensity is good, the cleaning of rub resistance, resisting high-concentration medicament, can be dense at high suspended solids
Spend lower steady running, the premium propertiess such as influent quality fluctuation can be tolerated, adopt firm tubular type knot
Structure, and sintering process film forming, stopped the generation of fracture of wire leakage phenomenon from principle; Tubular membrane group
Part is easy to reconstruction or enlarging, only need set up frame or increase membrane module to expand the process water yield.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is done further specifically
Bright.
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of silver-containing waste water place adopting tube type filter membrance described in the utility model
Reason system, comprise sodium hydroxide reactive tank, sodium-chlor reactive tank, thickener, tubular membrane component,
Filtering trough, mud storage tank and plate-and-frame filter press; Described sodium hydroxide reactive tank and influent waste water
Mouth is communicated with, and be provided with sodium-chlor reactive tank after sodium hydroxide reactive tank, described sodium hydroxide is anti-
Groove is answered to be communicated with sodium-chlor reactive tank; The water outlet of described sodium-chlor reactive tank and entering of thickener
The mouth of a river is communicated with; The water outlet of thickener is communicated with the inlet end of tubular membrane component; Described tubular type
Membrane module is provided with filtered water outlet end and concentrate recirculation end, filtered water outlet end and filtering trough connect
Logical; Concentrate recirculation end is communicated with the inlet end of tubular membrane component, and concentrate recirculation end is provided with
Sludge condensation liquid discharge pipe, sludge condensation liquid discharge pipe is communicated with mud storage tank; Described dirt
Mud storage tank rear is provided with plate-and-frame filter press, the disengaging water out of plate-and-frame filter press and sodium hydroxide
Reactive tank is communicated with.
Be provided with in described sodium hydroxide reactive tank, sodium-chlor reactive tank mechanical stirring device and
PH value monitoring device.
Described sodium hydroxide reactive tank front is provided with and regulates process wastewater trough.
Described tubular membrane component is made up of the tube type filter membrance of cross flow filter, establishes in tubular membrane component
Be equipped with recycle pump.
Fluid level controller is provided with in described thickener.
Described sodium hydroxide reactive tank, sodium-chlor reactive tank are provided with automatic medicine adding apparatus.
The processing method bag that the silver-containing waste water treatment system of above-mentioned employing tube type filter membrance adopts
Draw together following steps:
1) silver-containing waste water through overregulating process is imported in sodium hydroxide reactive tank, in hydroxide
Add sodium hydroxide in sodium reactive tank, be fully uniformly mixed, carry out pH value adjustment,
Silver ions also can generate silver hydroxide precipitation under strongly alkaline conditions; Hydrogen-oxygen under normal temperature
Change galactic pole unstable, be easily decomposed into the silver suboxide solid suspension that brown is insoluble in water
In waste water; This 20 minutes best setting times in stage, omnidistance to mixed solution
PH value is monitored; In this stage, silver ions removal principle is expressed as follows:
Under strongly alkaline conditions:
Ag-+OH--->AgOH(s)
2AgOH(s)-->Ag2O+H2O
Here " s " expression reacts and generates insolubles, i.e. suspended solids.
Under alkaline condition, hydroxide ions a large amount of in sodium hydroxide reactive tank with
Silver ions reacts, and generates unstable silver hydroxide precipitation.At normal temperatures,
Silver hydroxide is easily decomposed into indissoluble thing silver suboxide and is suspended in waste water.At reactive tank
In add sodium hydroxide and carry out pH regulator, when the pH of silver-containing waste water is about 11
Time, the solubleness of silver hydroxide is minimum, can obtain good sedimentation effect.
2) waste water after sodium hydroxide reactive tank is imported sodium-chlor reactive tank
Middle interpolation sodium-chlor, fully stirs, 20 minutes best setting time, a large amount of chlorine
Ion and silver ions can generate silver nitride precipitation, and silver nitride precipitation in the basic conditions
Can stable existence, form suspended solids, and pass into concentrated by the mode of overflow
In groove, thickener water capacity should be greater than the recycle pump water regain of 3 minutes, thickener
In fluid level controller is set liquid level is monitored in real time;
Cl-+Ag+=AgCl(s)
3) water in thickener is injected in tubular membrane component by recycle pump carry out
Solid-liquid separation;
4) filtrate of tubular membrane component is deposited in filtering trough, by filtrate
PH value be adjusted to neutral after reuse or discharge;
5) water flowing through tubular membrane component will be passed in tubular membrane component again
Row circulating filtration, the concentrated solution containing mud produced in this process will be drained extremely
In mud storage tank;
6) carry out mud by plate-and-frame filter press to the concentrated solution in mud storage tank to take off
Water treatment, the hydrogen that the disengaging water after sludge dewatering treatment will be injected into foremost again
Second time process is carried out in sodium oxide reactive tank; Mud cake after dehydration is concentrated
Process.
Claims (6)
1. adopt a silver-containing waste water treatment system for tube type filter membrance, it is characterized in that: bag
Draw together sodium hydroxide reactive tank, sodium-chlor reactive tank, thickener, tubular membrane component, filtering trough,
Mud storage tank and plate-and-frame filter press; Described sodium hydroxide reactive tank is communicated with water intake, hydrogen
Sodium-chlor reactive tank is provided with, described sodium hydroxide reactive tank and chlorination after sodium oxide reactive tank
Sodium reactive tank is communicated with; The described water outlet of sodium-chlor reactive tank is communicated with the water inlet of thickener;
The water outlet of thickener is communicated with the inlet end of tubular membrane component; Described tubular membrane component is established
Be equipped with filtered water outlet end and concentrate recirculation end, filtered water outlet end is communicated with filtering trough; Dense water returns
Stream end is communicated with the inlet end of tubular membrane component, and concentrate recirculation end is provided with sludge condensation liquid
Discharge pipe, sludge condensation liquid discharge pipe is communicated with mud storage tank; Described mud storage tank rear
Be provided with plate-and-frame filter press, the disengaging water out of plate-and-frame filter press and sodium hydroxide reactive tank connect
Logical.
2. a kind of silver-containing waste water place adopting tube type filter membrance according to claim 1
Reason system, is characterized in that: all arrange in described sodium hydroxide reactive tank, sodium-chlor reactive tank
There are mechanical stirring device and pH value monitoring device.
3. a kind of silver-containing waste water place adopting tube type filter membrance according to claim 1
Reason system, is characterized in that: described sodium hydroxide reactive tank front is provided with and regulates process waste water
Groove.
4. a kind of silver-containing waste water place adopting tube type filter membrance according to claim 1
Reason system, is characterized in that: described tubular membrane component is made up of the tube type filter membrance of cross flow filter,
Recycle pump is provided with in tubular membrane component.
5. a kind of silver-containing waste water place adopting tube type filter membrance according to claim 1
Reason system, is characterized in that: be provided with fluid level controller in described thickener.
6. a kind of silver-containing waste water place adopting tube type filter membrance according to claim 1
Reason system, is characterized in that: described sodium hydroxide reactive tank, sodium-chlor reactive tank are provided with
Automatic medicine adding apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520760851.6U CN204981430U (en) | 2015-09-29 | 2015-09-29 | Adopt tubular micro -filtration membrane's silver -colored effluent disposal system that contains |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520760851.6U CN204981430U (en) | 2015-09-29 | 2015-09-29 | Adopt tubular micro -filtration membrane's silver -colored effluent disposal system that contains |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204981430U true CN204981430U (en) | 2016-01-20 |
Family
ID=55115817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520760851.6U Expired - Fee Related CN204981430U (en) | 2015-09-29 | 2015-09-29 | Adopt tubular micro -filtration membrane's silver -colored effluent disposal system that contains |
Country Status (1)
| Country | Link |
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| CN (1) | CN204981430U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516599A (en) * | 2018-12-19 | 2019-03-26 | 河北德龙环境工程股份有限公司 | The polymorphic silver separation sub-prime device of one kind and sewage water treatment method |
| CN114180779A (en) * | 2021-12-24 | 2022-03-15 | 陕西煤业化工技术研究院有限责任公司 | Photovoltaic silver powder wastewater treatment process |
-
2015
- 2015-09-29 CN CN201520760851.6U patent/CN204981430U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516599A (en) * | 2018-12-19 | 2019-03-26 | 河北德龙环境工程股份有限公司 | The polymorphic silver separation sub-prime device of one kind and sewage water treatment method |
| CN114180779A (en) * | 2021-12-24 | 2022-03-15 | 陕西煤业化工技术研究院有限责任公司 | Photovoltaic silver powder wastewater treatment process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20190929 |