CN212127781U - Nickel recovery device for waste battery wastewater - Google Patents
Nickel recovery device for waste battery wastewater Download PDFInfo
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- CN212127781U CN212127781U CN202020130918.9U CN202020130918U CN212127781U CN 212127781 U CN212127781 U CN 212127781U CN 202020130918 U CN202020130918 U CN 202020130918U CN 212127781 U CN212127781 U CN 212127781U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a nickel recovery unit of old and useless battery waste water, include the waste water transfer tank that connects gradually through the pipeline in, except that oil tank, resin tank and qualified wastewater tank, the waste water that remains to be handled is equipped with in the waste water transfer tank, and the resin tank still passes through the pipeline with qualified wastewater tank and forms the return circuit, still is equipped with analytic liquid circulation groove and metal reservoir, analytic liquid circulation groove passes through the pipeline with the resin tank and forms the return circuit, and the metal liquid storage pot passes through the pipeline and is connected with the resin tank. The utility model discloses retrieve the technology of nickel in the waste battery recovery waste water with the ion exchange method, earlier with pending waste water deoiling processing, reuse resin adsorbs nickel ion, adsorbs saturated resin and adopts the analytic back reuse of acid analytic liquid, can make in the waste water nickel discharge to reach standard, and can retrieve nickel enrichment, simple process, no secondary pollution.
Description
Technical Field
The utility model relates to an industrial waste water technical field, in particular to nickel recovery unit of waste battery waste water.
Background
The method utilizes a hydrometallurgical method to recover useful metals in waste batteries, high-salinity nickel-containing wastewater is generated in the process, and the untreated discharge can cause serious pollution to the environment. At present, the recovery method of heavy metals in industrial wastewater mainly comprises a precipitation method, an electrolysis method, a membrane separation method, a biological method, an adsorption method and an ion exchange method.
The precipitation method is to precipitate heavy metal ions in a precipitation form by adding precipitants such as hydroxides, carbonates, sulfides and the like into the wastewater to achieve the purpose of recovery, but the method has the defects of high cost, qualified heavy metal in the precipitated water, high recovery rate, large amount of hydroxides to be added, subsequent large amount of acid adjustment, easy secondary pollution caused by the generated sludge and the like.
The electrolysis process consumes much energy, so that the treatment cost is increased. The membrane separation method comprises reverse osmosis, electrodialysis, liquid membrane, microfiltration, nanofiltration, ultrafiltration and the like, and is not suitable for treating industrial wastewater with large water volume because the components of the industrial wastewater are complex, the membrane is easy to damage, and the price of the membrane is high. The biological method is limited by the quality of the inlet water, such as the concentration of salt, heavy metal ions and the like. The adsorption method is to add an adsorbent into the wastewater to remove heavy metal ions, but most of the adsorbents on the market are expensive at present, the regeneration cost of the adsorbent is high, the recycling effect is not ideal, most of the adsorbed heavy metal ions are incompletely eluted, and secondary pollution is easily caused.
The ion exchange method is more and more widely applied in recent years, and mainly utilizes heavy metal ions to exchange with specific groups on ion exchange resin, so that the concentration of the heavy metal ions in the wastewater is reduced. When the ion exchange resin reaches the saturated adsorption capacity, the ion exchange resin can be recycled through an elution regeneration mode, so that the exchanged heavy metal ions are concentrated and reused.
The existing nickel recovery device for waste battery wastewater is mainly based on the traditional chemical precipitation method to realize recovery, and the nickel recovery device based on the ion exchange method is lacked.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's is not enough, provides a nickel recovery unit of old and useless battery waste water based on ion exchange method, and the device handles old and useless battery waste water, makes in the waste water nickel discharge to reach standard, and can retrieve, enrichment nickel recycles.
The technical scheme of the utility model is that: the utility model provides a nickel recovery unit of old and useless battery waste water, includes the waste water transfer tank that connects gradually through the pipeline, removes oil tank, resin jar and qualified wastewater tank, be equipped with the waste water that remains to be handled in the waste water transfer tank, the resin jar still passes through the pipeline with qualified wastewater tank and forms the return circuit, still is equipped with analytic liquid circulation groove and metal reservoir, analytic liquid circulation groove passes through the pipeline with the resin jar and forms the return circuit, and the metal liquid storage pot passes through the pipeline and is connected with the resin jar.
The analysis solution preparation tank is connected with the analysis solution circulating tank through a pipeline, and a valve and a water pump are arranged on the pipeline between the analysis solution preparation tank and the analysis solution circulating tank. The analysis liquid preparation tank is used for preparing the analysis liquid from the pure acid and the water in advance and supplying the analysis liquid to the analysis liquid circulation tank, the valve controls the opening and closing of the pipeline, and the water pump provides transmission power.
The qualified wastewater tank is connected with the water treatment workshop through a pipeline, and a valve is arranged on the pipeline between the qualified wastewater tank and the water treatment workshop.
Coconut shell activated carbon particles of 20-80 meshes are filled in the oil removal tank. Wherein, the wastewater to be treated contains a small amount of extraction oil and solvent oil, and is removed by coconut shell activated carbon.
Valves are arranged on any pipeline among the wastewater transfer tank, the oil removal tank, the resin tank, the qualified wastewater tank, the analytic liquid circulation tank and the metal liquid storage tank; and a water pump is arranged on a pipeline between the wastewater rotary tank and the oil removal tank, a water pump is arranged on a pipeline loop of the resin tank and the qualified wastewater tank, and a water pump is arranged on a pipeline loop of the analysis liquid circulating tank and the resin tank. Wherein, the valve control on the pipeline opens and close of each section pipeline to the flow of control liquid, the water pump increases transmission power, improves the velocity of flow.
The resin tank is at least provided with 2, and the connection mode between each resin tank is a series-parallel connection combination. Wherein, any resin tank is taken as a main adsorption section, and the rest resin tanks are taken as adsorption protection sections.
The analysis solution preparation tank is filled with analysis solution prepared from concentrated acid and pure water. Wherein, concentrated sulfuric acid or concentrated hydrochloric acid is adopted as the concentrated acid, and the analytic solution is a sulfuric acid solution with the acid content of 12-20% by mass or a hydrochloric acid solution with the acid content of 5-10% by mass.
The resin tank is filled with chelating type nickel-removing ion exchange resin. The nickel ion removing exchange resin can adsorb nickel ions in wastewater to be treated, and the resin is precipitated through acidic desorption liquid after adsorption saturation, so that the nickel ions are enriched, and ion exchange is realized.
The resin tank is provided with 2, 2 resin tanks are connected in parallel, and the outlet pipeline of one resin tank is connected with the inlet pipeline of the other resin tank. The two resin tanks adopt a series-parallel connection mode, so that nickel ions in the wastewater after resin adsorption reach the standard, namely Ni is less than or equal to 1 mg/L.
And a pH meter is arranged on a pipeline between the resin tank and the qualified wastewater tank, and a flow meter is arranged on a pipeline between the wastewater rotary tank and the oil removal tank.
The working process of the nickel recovery device for waste battery wastewater comprises the following steps:
waste batteries are arranged in the waste water transfer tank to recover waste water, the pH value of the waste water is 4.5-6.5, the waste water contains high-concentration sodium sulfate salt, a small amount of oil (an extracting agent and solvent oil) and low nickel, and the waste water enters an oil removal tank through a pipeline to remove oil and intercept suspended matters; the deoiled wastewater enters a resin tank through a pipeline at the flow rate of 3-10BV/h, and nickel metal ions in the wastewater are adsorbed by resin, so that the nickel content in the wastewater reaches the standard; the wastewater subjected to nickel removal enters a qualified wastewater tank through a pipeline and is pumped into a water treatment workshop for treating second pollutants;
absorbing nickel metal ions by resin, preparing a resolving solution by using concentrated acid and pure water in a resolving solution preparation tank, pumping the resolving solution into a resolving solution circulating tank, pumping the resolving solution into a resin tank for carrying out circulating resolution on the resin with the nickel content of more than 1mg/L in the absorbing saturation or absorbing effluent, and enabling the discharged resolving solution to enter a metal solution storage tank through a pipeline for preparing a nickel metal product; the analytic solution preparation tank is used for preparing the analytic solution again, the analytic solution is pumped into the resin tank for secondary circulation analysis, and the analytic solution discharged by the secondary circulation analysis is stored in the analytic solution circulation tank through a pipeline and is continuously used for analysis;
pumping the qualified wastewater after nickel removal in the qualified wastewater tank into a resin tank, and washing until the pH value of resin filtered water is greater than 3, and entering the next working period.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses retrieve the technology of nickel in the waste battery recovery waste water with the ion exchange method, earlier with pending waste water deoiling processing, reuse resin adsorbs nickel ion, adsorbs saturated resin and adopts the analytic back reuse of acid analytic liquid, can make in the waste water nickel discharge to reach standard, and can retrieve nickel enrichment, simple process, no secondary pollution.
The utility model discloses well used resin is for having the chelating type of high selectivity to nickel and removing nickel ion exchange resin, and this resin reaches and need not reuse alkali lye transformation after the acidizing fluid is analyzed after the absorption saturation, filters out water pH to the resin through absorption tail washing and >3 can reuse, simple process, and the running cost is low and does not produce secondary pollution. The acidic desorption solution is rich in heavy metal nickel, the impurity content can meet the requirement of preparing nickel products (such as nickel sulfate), and impurities do not need to be removed. The nickel content in the adsorbed water reaches the discharge standard, and the adsorbed water is transferred into a water treatment workshop through a transfer tank to carry out second-class pollutant treatment.
Drawings
FIG. 1 is a schematic structural diagram of the nickel recovery apparatus for waste battery wastewater.
Fig. 2 is a schematic structural view of embodiment 2.
In the figure, 1 is a wastewater treatment tank, 2 is a degreasing tank, 3 is a first resin tank, 4 is a second resin tank, 5 is a qualified wastewater tank, 6 is a solution preparation tank, 7 is a solution circulation tank, 8 is a water treatment plant, 9 is a metal storage tank, 10 is pure acid, and 11 is pure water.
Detailed Description
The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.
Example 1
The utility model provides a nickel recovery unit of old and useless battery waste water, as shown in figure 1, include waste water transfer groove 1, deoiling jar 2, resin tank and the qualified wastewater tank 5 that connect gradually through the pipeline, the waste water transfer inslot is equipped with the waste water that remains to be handled, and the resin tank still passes through the pipeline with the qualified wastewater tank and forms the return circuit, still is equipped with analytic liquid circulation tank 7 and metal reservoir 9, analytic liquid circulation tank passes through the pipeline with the resin tank and forms the return circuit, and the metal reservoir passes through the pipeline and is connected with the resin tank. The device is characterized by further comprising a resolving liquid preparation tank 6, wherein the resolving liquid preparation tank is used for preparing resolving liquid from pure acid and water in advance and supplying the resolving liquid to a resolving liquid circulating tank, the resolving liquid preparation tank is connected with the resolving liquid circulating tank through a pipeline, a valve and a water pump are arranged on the pipeline between the resolving liquid preparation tank and the resolving liquid circulating tank, the valve controls the opening and closing of the pipeline, and the water pump provides transmission power. The qualified wastewater tank is connected with the water treatment workshop 8 through a pipeline, and a valve is arranged on the pipeline between the qualified wastewater tank and the water treatment workshop.
Valves are arranged on any pipeline among the wastewater transfer tank, the oil removal tank, the resin tank, the qualified wastewater tank, the resolving liquid circulating tank and the metal liquid storage tank; and a water pump is arranged on a pipeline between the wastewater rotary tank and the oil removal tank, a water pump is arranged on a pipeline loop of the resin tank and the qualified wastewater tank, and a water pump is arranged on a pipeline loop of the analysis liquid circulating tank and the resin tank. Wherein, the valve control on the pipeline opens and close of each section pipeline to the flow of control liquid, the water pump increases transmission power, improves the velocity of flow. A pH meter is arranged on a pipeline between the resin tank and the qualified wastewater tank, and a flowmeter is arranged on a pipeline between the rotary tank and the oil removal tank in the wastewater.
Coconut shell activated carbon particles of 20-80 meshes are filled in the oil removing tank. Wherein, the wastewater to be treated contains a small amount of extraction oil and solvent oil, and is removed by coconut shell activated carbon.
The analysis liquid preparation tank is filled with an analysis liquid prepared from concentrated acid 10 and pure water 11. Wherein, concentrated sulfuric acid or concentrated hydrochloric acid is adopted as the concentrated acid, and the analytic solution is a sulfuric acid solution with the acid content of 12-20% by mass or a hydrochloric acid solution with the acid content of 5-10% by mass.
The resin tank is filled with chelating nickel-removing ion exchange resin, specifically Lx-92 ion exchange resin produced by Xian blue Xiaojie technology. The nickel ion removing exchange resin can adsorb nickel ions in wastewater to be treated, and the resin is precipitated through acidic desorption liquid after adsorption saturation, so that the nickel ions are enriched, and ion exchange is realized. The resin jar is equipped with 2, be first resin jar 3 and second resin jar 4 respectively, first resin jar and second resin jar are parallelly connected, the inlet pipeline of the outlet pipe connection second resin jar of first resin jar and/or the inlet pipeline of the outlet pipeline connection first resin jar of second resin jar, realize the combination of connecting in series and parallel, regard as main adsorption section with first resin jar, the second resin jar is as the adsorption protection section, two resin jars adopt the mode of connecting in series and parallel combination, it is up to standard to guarantee that the waste water nickel ion after the resin adsorbs, Ni is less than or equal to 1mg/L promptly.
This embodiment provides a waste battery waste water's nickel recovery unit's specific working process again:
waste batteries are filled in the waste water transfer tank to recycle waste water, the pH value of the waste water is 4.5-6.5, the concentration of sodium sulfate is 80-120g/L, the oil content is less than 20mg/L, the nickel content is 15-80mg/L, and the waste water to be treated enters an oil removing tank through a pipeline to remove oil and intercept suspended matters;
the deoiled wastewater enters a resin tank through a pipeline at the flow rate of 3-10BV/h, nickel metal ions in the wastewater are absorbed by resin, nickel in the resin filtered water is less than 1mg/L, and the nickel content in the wastewater reaches the standard;
the wastewater subjected to nickel removal enters a qualified wastewater tank through a pipeline and is pumped into a water treatment workshop for treating second pollutants;
preparing a 10% sulfuric acid solution from concentrated sulfuric acid and pure water in an analytic solution preparation tank to serve as an analytic solution, pumping the analytic solution into an analytic solution circulation tank, pumping the analytic solution into a resin tank to perform circulation analytic on resin with saturated adsorption or more than 1mg/L of water nickel, and enabling the discharged analytic solution to enter a molten metal storage tank through a pipeline for preparing a nickel metal product;
a new analysis solution is prepared in the analysis solution preparation tank again and pumped into the resin tank for secondary circulation analysis, and the analysis solution discharged by the secondary circulation analysis is stored in the analysis solution circulation tank through a pipeline loop and is used for the next analysis;
pumping the qualified wastewater after nickel removal in the qualified wastewater tank into a resin tank, and washing until the pH value of resin filtered water is greater than 3, and entering the next working period.
Example 2
The nickel recovery device for waste battery wastewater of the embodiment is different from the nickel recovery device of the embodiment 1 in that a resolving liquid preparation tank is connected with an oil removal tank through a pipeline, the oil removal tank is connected with a qualified wastewater tank through a pipeline, an acidic resolving liquid in the resolving liquid preparation tank pretreats activated carbon in the oil removal tank, and the pretreated resolving liquid is directly discharged to the qualified wastewater tank without passing through a resin tank, as shown in fig. 2; the remaining non-mentioned portions were the same as in example 1.
As described above, the present invention can be realized well, and the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes and modifications made according to the present invention are intended to be covered by the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a nickel recovery unit of old and useless battery waste water, its characterized in that includes the waste water transfer tank that connects gradually through the pipeline, removes oil tank, resin jar and qualified wastewater tank, the waste water transfer tank is equipped with the waste water that remains to be handled in, and the resin jar still passes through the pipeline with qualified wastewater tank and forms the return circuit, still is equipped with analytic liquid circulation groove and metal reservoir, analytic liquid circulation groove passes through the pipeline with the resin jar and forms the return circuit, and the metal reservoir passes through the pipeline and is connected with the resin jar.
2. The nickel recycling device for waste battery wastewater according to claim 1, further comprising a solution preparation tank connected to the solution circulation tank through a pipeline, wherein a valve and a water pump are disposed on the pipeline between the solution preparation tank and the solution circulation tank.
3. The nickel recycling apparatus for waste battery wastewater as claimed in claim 1, wherein the qualified wastewater tank is connected to the water treatment plant through a pipeline, and a valve is provided on the pipeline between the qualified wastewater tank and the water treatment plant.
4. The nickel recovery device of waste battery wastewater as claimed in claim 1, wherein the deoiling tank is filled with 20-80 mesh coconut shell activated carbon particles.
5. The nickel recovery device of waste battery wastewater as claimed in claim 1, wherein a valve is provided on any one of the pipelines between the wastewater diversion tank, the degreasing tank, the resin tank, the qualified wastewater tank, the desorption liquid circulation tank and the metal liquid storage tank; and a water pump is arranged on a pipeline between the wastewater rotary tank and the oil removal tank, a water pump is arranged on a pipeline loop of the resin tank and the qualified wastewater tank, and a water pump is arranged on a pipeline loop of the analysis liquid circulating tank and the resin tank.
6. The nickel recycling device for waste battery wastewater as claimed in claim 1, wherein the number of the resin tanks is at least 2, and the resin tanks are connected in series and parallel.
7. The nickel recovery device for waste battery wastewater according to claim 2, wherein the solution preparation tank is filled with a solution prepared from concentrated acid and pure water.
8. The apparatus for recovering nickel from waste battery wastewater as set forth in claim 1, wherein the resin tank contains a chelating type nickel-removing ion exchange resin.
9. The nickel recycling device for waste battery wastewater as recited in claim 6, wherein the resin tanks are provided with 2, 2 resin tanks connected in parallel and the outlet pipe of one resin tank is connected with the inlet pipe of the other resin tank.
10. The nickel recovery device of waste battery wastewater as claimed in claim 1, wherein a pH meter is installed on the pipeline between the resin tank and the qualified wastewater tank, and a flow meter is installed on the pipeline between the wastewater rotary tank and the oil removal tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202020130918.9U CN212127781U (en) | 2020-01-20 | 2020-01-20 | Nickel recovery device for waste battery wastewater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020130918.9U CN212127781U (en) | 2020-01-20 | 2020-01-20 | Nickel recovery device for waste battery wastewater |
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| CN212127781U true CN212127781U (en) | 2020-12-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115925129A (en) * | 2022-12-15 | 2023-04-07 | 江苏秉盛环保工程有限公司 | Adsorption recovery system and process for precious metals in heavy metal wastewater |
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2020
- 2020-01-20 CN CN202020130918.9U patent/CN212127781U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115925129A (en) * | 2022-12-15 | 2023-04-07 | 江苏秉盛环保工程有限公司 | Adsorption recovery system and process for precious metals in heavy metal wastewater |
| CN115925129B (en) * | 2022-12-15 | 2023-12-22 | 江苏秉盛环保工程有限公司 | Adsorption recovery system and process for noble metals in heavy metal wastewater |
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