CN203715324U - Phenolic wastewater removing device - Google Patents
Phenolic wastewater removing device Download PDFInfo
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- CN203715324U CN203715324U CN201420018999.8U CN201420018999U CN203715324U CN 203715324 U CN203715324 U CN 203715324U CN 201420018999 U CN201420018999 U CN 201420018999U CN 203715324 U CN203715324 U CN 203715324U
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Abstract
The utility model relates to a phenolic wastewater removing device. The phenolic wastewater removing device comprises an active carbon adsorption tank, a water storage tank, an alkaline liquor tank, a sodium phenolate solution tank, an acidic solution tank, an extraction tower, a solvent tank and a water pump, wherein the active carbon adsorption tank comprises a first adsorption tank and a second adsorption tank which are connected in series with each other. The technical scheme provided by the utility model is simple to operate, good in water treatment effect and high in regeneration efficiency, recycling of active carbon is realized and a phenolic substance can be recycled after regeneration, so the wastewater treatment cost is greatly lowered.
Description
Technical field
The utility model relates to wastewater treatment equipment and the treatment process of chemical field, particularly relates to a kind of device removing for phenolic wastewater and technique.
Background technology
Industrialized fast development has produced increasing waste water, and these waste water, if do not processed in time, certainly will cause a significant threat global environment and human health.Aldehydes matter is a kind of important industrial chemicals and intermediate, is extensively applied to the various agrochemicals of paper industry, petroleum industry, dyeing and preparation, due to its hard degradation, brings constant greatly to wastewater treatment.Phenol organic matter belongs to hypertoxic type, and lower concentration can make protein denaturation, and high density can make protein precipitation, and various cells are had to direct infringement, and skin and mucous membrane are had to strong corrosive nature.The water that long-term drinking is polluted by phenol, can cause giddy, eruption, itch, anaemia, feels sick, vomiting and various neurological symptom.Phenolic compound has tumor promotion to people and Mammals.Therefore select suitable effectively, the operation easily phenolic wastewater treatment process of row seems most important.
The treatment process of trade effluent mainly contains four kinds: chemical method, Physical, physicochemical treatment method and biological process.For phenolic wastewater, simple Physical or chemical method cannot effectively be removed pollutent, and biological process limits to some extent to place and operating process, when aldehydes matter content is high also to the toxic effect of microorganism.Absorption method is a kind of physicochemical treatment process, and gac has huge specific surface area, has powerful adsorptive power, can be used for the decolouring, deodorizing, absorb polluted matter of waste water etc., is a kind of effectively waste water conditioner.Phenolic wastewater is that the water yield is less, the larger waste water of harm, utilizes the adsorption of gac to purify phenolic wastewater a kind of simple treatment process of can yet be regarded as.
Summary of the invention
The purpose of this utility model is, a kind of device that can remove phenolic wastewater and technological process are provided.It is simple that phenolic wastewater of the present utility model removes device, and compared with conventional absorbent charcoal adsorber, device adsorption and desorption of the present utility model carries out in a tank, has greatly simplified equipment, and simple to operate.In phenolic wastewater removing process of the present utility model, regenerator sodium hydroxide solution can be recycled, and after regeneration, can will add acid treatment containing the sodium hydroxide solution of high-concentration phenol sodium to reclaim aldehydes matter.
The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.A kind of phenolic wastewater providing according to the utility model removes device, and wherein said phenolic wastewater removes device and comprises: absorbent charcoal adsorption tank, tank, alkali liquid tank, sodium phenolate solution tank, acid solution tank, extraction tower, solvent tank, water pump; Wherein absorbent charcoal adsorption tank is connected with tank and alkali liquid tank respectively, alkali liquid tank is connected with sodium phenolate solution tank, sodium phenolate solution tank is connected with acid solution tank, sodium phenolate solution tank is connected with extraction tower, extraction tower is connected with solvent tank, between absorbent charcoal adsorption tank and alkali liquid tank, alkali liquid tank and sodium phenolate solution tank, sodium phenolate solution tank and extraction tower, tank and extraction tower, is connected with respectively water pump.
The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.
Aforesaid phenolic wastewater removes device, and wherein said absorbent charcoal adsorption tank comprises first adsorption tanks and second adsorption tanks, and these two adsorption tanks are connected in series.
The purpose of this utility model and solve its technical problem and also adopt following technical scheme to realize.A kind of use providing according to the utility model is as the phenolic wastewater removing process of said apparatus, wherein comprise following steps: (a), in two adsorption tanks, first add gac, make the active carbon layer of flowing through successively in first adsorption tanks and second adsorption tanks containing the waste water of phenol from bottom to top, if enter tank after the water outlet of second adsorption tanks is up to standard after testing, then reuse; (b), when through after above-mentioned steps (a) repeatedly, gac in two adsorption tanks has reached absorption when saturated, need to regenerate to adsorbing saturated gac: first stop waste water and enter absorbent charcoal adsorption tank, then the sodium hydroxide solution in alkali liquid tank is joined first adsorption tanks from below, the saturated activity charcoal that sodium hydroxide solution is flowed through in first adsorption tanks and second adsorption tanks from bottom to top, then sodium hydroxide solution is flow back in alkali liquid tank and recycled by water pump; (c), in the time that in the alkali lye of alkali liquid tank, phenol concentration is constant, stop the regeneration of gac in two adsorption tanks, in the adsorption tanks that add water, the gac after regeneration is washed till to neutrality, water outlet enters tank, the gac after regeneration can be proceeded waste water absorption; (d), in the time that in the alkali lye of alkali liquid tank, phenol concentration is constant, the high-concentration phenol sodium solution in above-mentioned alkali liquid tank is arranged in sodium phenolate solution tank by water pump, then from acid solution tank, add appropriate dilute hydrochloric acid to mix in sodium phenolate solution tank, phenol sodium reduction is become to phenol; (e), after above-mentioned steps (d), solution after neutralization in sodium phenolate solution tank is arranged in extraction tower by water pump, from solvent tank, add again extraction agent in extraction tower, after layering, water layer is arranged into tank by water pump from extraction tower end opening, and oil reservoir is discharged to reclaim phenol.
The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.
Aforesaid phenolic wastewater removing process, wherein said gac is the product of biological material after pyrolysis activation, as nut shell, sawdust, leaf.
Aforesaid phenolic wastewater removing process, wherein said activated carbon particle size is 60-80 order, its usage quantity is 1.5-2.0g in every liter of waste water.
Aforesaid phenolic wastewater removing process, wherein said wastewater pH is controlled between 2-7.
Aforesaid phenolic wastewater removing process, the flow rate control of wherein said waste water in whole technical process is 10m/h, the adsorption and desorption temperature of absorbent charcoal adsorption tank remains on 0-50 DEG C.
Aforesaid phenolic wastewater removing process, wherein the concentration of sodium hydroxide solution is little on regeneration effect impact when regeneration of activated carbon, can adopt the sodium hydroxide solution of higher concentration and repeatedly recycle, finally the high-concentration phenol sodium in sodium hydroxide solution is added to acid recovery aldehydes matter, but concentration of sodium hydroxide solution is too high, to cause and wash the increase of the charcoal water yield, therefore the best is to adopt the sodium hydroxide solution that concentration is 0.1-0.5mol/L.
Aforesaid phenolic wastewater removing process, the sodium hydroxide solution adding when wherein said regeneration of activated carbon and the flow rate control of bath water are 10m/h.
Aforesaid phenolic wastewater removing process, wherein said technique is applicable to be less than containing phenol concentration the waste water of 500mg/L, for high-concentration phenolic wastewater, can first carry out pre-treatment, and then the method providing with the utility model is processed.
By technique scheme, the utility model at least has the following advantages: the adsorption and desorption of gac occurs in same device, draws the process of charcoal while having saved regenerated carbon, has saved manpower and time.And the gac that the utility model uses is the product of biological material after pyrolysis activation, utilization of waste material, reduce the spending for wastewater treatment, reduce processing cost, recovering and reutilizing waste water after treatment, saved the energy, recyclable aldehydes matter simultaneously, is a kind of efficient, clean, economic water technology.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technique means of the present utility model, and can be implemented according to the content of specification sheets, and for above and other object of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Brief description of the drawings
Fig. 1 is phenolic wastewater removing process schema of the present utility model.
Fig. 2 is the structural representation that phenolic wastewater of the present utility model removes device
[main element nomenclature]
1: adsorption tanks 11: first adsorption tanks
12: the second adsorption tanks 2: tank
3: alkali liquid tank 4: sodium phenolate solution tank
5: acid solution tank 6: extraction tower
7: solvent tank 8: water pump
Embodiment
Technique means and effect of taking for reaching predetermined goal of the invention for further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, to removing its embodiment of device, structure, removing process, step, feature and effect thereof according to a kind of phenolic wastewater the utility model proposes, be described in detail as follows.
The utility model relates to a kind of phenolic wastewater and removes device and technique, and wherein said phenolic wastewater removes device and comprises: absorbent charcoal adsorption tank 1, tank 2, alkali liquid tank 3, sodium phenolate solution tank 4, acid solution tank 5, extraction tower 6, solvent tank 7, water pump 8.
Phenolic wastewater removing process of the present utility model is:
Add gac, make the phenolic wastewater active carbon layer of flowing through from bottom to top, control water flow velocity is 10m/h, and the water outlet of first adsorption tanks 11 enters second adsorption tanks 12 and proceeds absorption from below, after two adsorption tanks adsorption treatment, wastewater to reach standard enters tank 2.
In above-mentioned technique, described activated carbon particle size is 60-80 order, and gac dosage is 1.5-2.0g in every liter of waste water, and wastewater pH is controlled at 2-7, and adsorption temp remains on 0-50 DEG C.
Adsorb saturated gac and need regenerate to reuse, economize on resources.The regeneration of gac adopts sodium hydroxide solution desorption and regeneration method.Add 0.1-0.5mol/L sodium hydroxide solution, make the sodium hydroxide solution saturated activity charcoal of flowing through from bottom to top, the sodium hydroxide solution of discharging from first adsorption tanks 11 enters second adsorption tanks 12 and proceeds desorption and regeneration from below, finally flow back to alkali liquid tank 3 by water pump 8, to recycle sodium hydroxide solution.Add water the gac after regeneration is washed till to neutrality, water outlet enters tank 2.Gac after regeneration can continue on for adsorbing phenolic wastewater.
Sodium hydroxide solution in alkali liquid tank 3 is through regenerated carbon repeatedly, the phenol sodium that contains high density, this part solution is arranged into sodium phenolate solution tank 4 by water pump 8, hydrochloric acid in acid solution tank 5 adds sodium phenolate solution tank 4 in right amount, after mixing, arrange into extraction tower 6 by water pump 8, from solvent tank 7, add extraction agent, after layering, water layer flows out and arranges into tank 2 by water pump 8 from extraction tower 6 end openings, and oil reservoir discharges to reclaim phenol.
Described gac is the product of biological material after pyrolysis activation, biological material source is abundant, and cheap, mostly directly thrown away as waste, as nut shell, sawdust, leaf etc., as by being used after these pyrolysis of waste activation, not only reduce garbage discharge amount, and for wastewater treatment provides a kind of high-efficiency adsorbent, a kind of way making the best of both worlds of can yet be regarded as.
Described concentration of sodium hydroxide solution is little on the regeneration effect impact of gac, adopts relatively high density can make sodium hydroxide solution recycle, and phenol na concn is improved, and is conducive to enrichment and reclaims aldehydes matter.But concentration of sodium hydroxide solution is too high, will causes and wash the increase of the charcoal water yield, therefore adopt 0.1-0.5mol/L to be advisable.
The utility model is applicable to be less than containing phenol concentration the wastewater treatment of 500mg/L, for high-concentration phenolic wastewater, can first carry out after one-level pre-treatment, and the method that re-using the utility model provides is carried out second-stage treatment, and its effluent quality can be up to standard.
In an embodiment, in waste water, polyphenol substance is para-chlorophenol and p-NP, and the total concn of two kinds of phenol of water-in is 425mg/L, and wastewater pH is 5.74, adopt 752 ultraviolet-visible spectrophotometers to measure phenol content, para-chlorophenol and p-NP test wavelength are respectively 225nm and 314nm.
Clearance and desorption efficiency are defined as respectively:
[embodiment 1-13]
In absorbent charcoal adsorption tank, add a certain amount of gac, pass into waste water, control certain flow velocity, make the waste water active carbon layer of flowing through from below to up, water outlet enters tank, and experimental result is in table 1.
Table 1.
From above-mentioned table 1, in the time of the phenolic wastewater by the technical solution of the utility model Processing Example, optimum processing parameter is respectively: when absorption, wastewater pH is controlled at 2-7, water flow velocity is 10m/h, gac usage quantity is 1.5-2.0g/L, adsorption temp room temperature, the too low or too high clearance that all makes of temperature declines, but cold winter this method be still suitable for.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, but not in order to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solutions of the utility model, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (2)
1. phenolic wastewater removes a device, it is characterized in that described phenolic wastewater removes device and comprises: absorbent charcoal adsorption tank (1), tank (2), alkali liquid tank (3), sodium phenolate solution tank (4), acid solution tank (5), extraction tower (6), solvent tank (7), water pump (8);
Wherein absorbent charcoal adsorption tank (1) is connected with tank (2) and alkali liquid tank (3) respectively, alkali liquid tank (3) is connected with sodium phenolate solution tank (4), sodium phenolate solution tank (4) is connected with acid solution tank (5), sodium phenolate solution tank (4) is connected with extraction tower (6), extraction tower (6) is connected with solvent tank (7), between absorbent charcoal adsorption tank (1) and alkali liquid tank (3), alkali liquid tank (3) and sodium phenolate solution tank (4), sodium phenolate solution tank (4) and extraction tower (6), tank (2) and extraction tower (6), is connected with respectively water pump (8).
2. phenolic wastewater according to claim 1 removes device, it is characterized in that described absorbent charcoal adsorption tank (1) comprises first adsorption tanks (11) and second adsorption tanks (12), and these two adsorption tanks is connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420018999.8U CN203715324U (en) | 2014-01-13 | 2014-01-13 | Phenolic wastewater removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420018999.8U CN203715324U (en) | 2014-01-13 | 2014-01-13 | Phenolic wastewater removing device |
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| Publication Number | Publication Date |
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| CN203715324U true CN203715324U (en) | 2014-07-16 |
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| CN201420018999.8U Withdrawn - After Issue CN203715324U (en) | 2014-01-13 | 2014-01-13 | Phenolic wastewater removing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103848472A (en) * | 2014-01-13 | 2014-06-11 | 洛阳智方环保技术有限公司 | Phenol-containing wastewater removal device and process |
| CN107694613A (en) * | 2017-11-29 | 2018-02-16 | 洛阳市天誉环保工程有限公司 | The technique and device of phenol impurity in a kind of removal doctor solution |
| CN109437434A (en) * | 2018-11-29 | 2019-03-08 | 中冶南方都市环保工程技术股份有限公司 | Processing method containing wastewater containing phenol and cyanide and system |
-
2014
- 2014-01-13 CN CN201420018999.8U patent/CN203715324U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103848472A (en) * | 2014-01-13 | 2014-06-11 | 洛阳智方环保技术有限公司 | Phenol-containing wastewater removal device and process |
| CN103848472B (en) * | 2014-01-13 | 2016-03-09 | 洛阳智方环保技术有限公司 | A kind of phenolic wastewater removes device and removing process thereof |
| CN107694613A (en) * | 2017-11-29 | 2018-02-16 | 洛阳市天誉环保工程有限公司 | The technique and device of phenol impurity in a kind of removal doctor solution |
| CN109437434A (en) * | 2018-11-29 | 2019-03-08 | 中冶南方都市环保工程技术股份有限公司 | Processing method containing wastewater containing phenol and cyanide and system |
| CN109437434B (en) * | 2018-11-29 | 2024-03-22 | 中冶南方都市环保工程技术股份有限公司 | Phenol-cyanogen-containing wastewater treatment method and system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140716 Effective date of abandoning: 20160309 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |