CN103848517A - Recovery and utilization technology of beer bottle cleaning lye - Google Patents
Recovery and utilization technology of beer bottle cleaning lye Download PDFInfo
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- CN103848517A CN103848517A CN201210512009.1A CN201210512009A CN103848517A CN 103848517 A CN103848517 A CN 103848517A CN 201210512009 A CN201210512009 A CN 201210512009A CN 103848517 A CN103848517 A CN 103848517A
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- Prior art keywords
- lye
- alkali
- beer bottle
- technology
- bottle washing
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Abstract
The invention discloses a recovery and utilization technology of a beer bottle cleaning lye. The technology comprises the following steps of: filtration and heating of waste lye; titration and precipitation separation of the waste lye; recovery and recycling of a titrated supernate and the like. Compared with the prior art, the technology disclosed by the invention has the advantages that the activity of the waste lye is effectively improved; and the discharge of wastewater and the usage amount of acid during wastewater treatment are effectively reduced, namely, the recycling of the waste lye is effectively realized; and not only the usage amount of the acid is reduced but also the treatment quantity and the discharge quantity of the wastewater are reduced. The lye which is recycled and treated can be used for replacing a conventional freshly-prepared beer bottle cleaning lye.
Description
Technical field
The present invention relates to a kind of Beer bottle washing recycle of alkali liquor and utilize technology, particularly a kind of recovery and cycling and reutilization and waste water discharge-reducing technology for intending the Beer bottle washing alkali lye that flows to waste water (sewage) treatment plant.
Background technology
In to Beer bottle washing process, although the bottle washing machine of each factory, bottle source different, wash bottle auxiliary agent also has difference, basic goal and basic working procedure are all same or similar.The object of wash bottle is inside and outside old soldi wash clean, and disinfection in addition, for filling operation provides the packaging vessel that meets health and service requirements.The auxiliary agent that Beer bottle washing alkali lye mainly contains certain density NaOH and is made up of tensio-active agent.Utilize the strong basicity of NaOH that the label of Beer Bottle is come off, be called de-mark; Utilize auxiliary agent to clean the greasy dirt on Beer Bottle surface.Both be dissolved in the liquid take water as solvent, but there is not each other chemical reaction in both function and efficacy differences in cleaning process yet.
Take Leiderkranz's bottle washing machine as example, its technical process is: bottle inlet → raffinate topple over → pre-soaking → spray → alkali 1 groove → alkali, 2 grooves → alkali, 3 grooves → alkali pit → hot water tank → cold water 1 groove (soft water) → cold water 2 grooves (sterilized water or tap water) → clear water spray → ultra-violet sterilization → bottle outlet.Wherein, at " alkali 1 groove ", in " alkali pit ", its scavenging solution is generally preparation the NaOH alkali lye of certain wash bottle auxiliary agent.Conventionally in Beer bottle washing alkali lye, NaOH solubility is 2wt%, and pH value is 13.5-14.
In the existing various recovery for the discarded alkali lye of Beer Bottle with utilize in technology, be all filtration, isolation technique and the support equipment thereof for the solid impurity in waste lye (suspended substance).But these technology all cannot improve the activity of the alkali in discarded alkali lye, although after filtering the pH value of waste lye and fresh alkali lye pH value quite, in waste lye, effective alkali concentration is very little, alkaline matter is wherein difficult to recycle.
Cleaning after the bottle of some amount, through filtering and precipitating the solid impurity in scavenging solution, alkali lye is directly discharged or is transported to sewage work (general with the rear discharge of acid neutralization) conventionally.In existing actual mechanical process, find to exist the problem of at least 2 aspects:
1, salkali waste liquid measure is larger, and sewage work's load is large, large to sour consumption.
Although the pH value of 2 waste lyes is up to 13.7 left and right, suitable with fresh alkali lye pH value, in waste lye, effective alkali concentration is very little, and alkaline matter wherein cannot recycle, and waste is serious.
Effective alkali refers to NaOH+1/2Na
2s, the meaning is Na
2after S hydrolysis, generate 1/2 NaOH and 1/2NaSH, all with Na
2o(or NaOH) represent.Effective alkali concentration refers to the concentration of the alkali that can exist with NaOH form in solution.
Summary of the invention
The present invention relates to a kind of Beer bottle washing recycle of alkali liquor and utilize technology, can significantly reduce discharge and the antacid usage quantity of waste water, can efficient recovery and make the NaOH in alkali lye obtain cycling and reutilization.
The present invention, mainly for intending flowing to the Beer bottle washing alkali lye of waste water (sewage) treatment plant, comprises filtration and the heating of waste lye, the titration of waste lye and precipitate and separate, the recovery of titration supernatant liquor with the step link such as recycle.
A kind of Beer bottle washing recycle of alkali liquor with utilize technology, comprise the following steps:
1, the filtration of waste lye and heating: discarded alkali lye carries out the filtering separation of solid impurity, then adds heat alkali liquid to 60
oc ~ 80
oc, carries out secondary filtration to emerging precipitation;
2, the titration of waste lye and precipitate and separate: under fully stirring, to 60 after filtering in step 1
oc ~ 80
othe alkali lye clear liquid adjust pH of C is 9-10; To precipitate with clear liquid and separate;
3, the recovery of titration clear liquid with recycle: in the isolated clear liquid of step 2, add NaOH, regulate the pH value of clear liquid make its effective alkali concentration [NaOH] be about 0.5 mol/L.
The filtration of the solid impurity described in step 1 adopts inorganic ceramic film.
The preferred 9.3-9.5 of pH value in step 2.
Adjusting pH value scope described in step 3 is 13.5-14.
Compared with prior art, the present invention has:
First, can effectively improve the activity of waste lye: the separate modes such as existing filtration, precipitation, just simply the solid impurity in waste lye is separated, although the alkali lye pH value after separation is still higher, but owing to not improving alkali lye activity, cannot complete de-target effect, can not recycle.
The second, the usage quantity of the discharge that can effectively reduce waste water acid during with wastewater treatment: prior art for the waste lye after separating conventionally directly discharge to waste water treatment plant, then with sour, alkali is wherein neutralized, be finally discharged in river.This not only wastes a large amount of acid and alkali wherein, has also increased the quantity discharged of waste water.Utilize this technology can effectively realize the recycling of waste lye, not only reduced sour usage quantity, also reduced treatment capacity and the quantity discharged of waste water.
The 3rd, reclaim also alkali lye after treatment and can replace conventional freshly prepared Beer bottle washing alkali lye: prior art is to utilizing Physical Separation Technology to separate solid impurity wherein, the alkali lye activity obtaining cannot reach service requirements, is difficult to replace the alkali lye of fresh configuration.
Embodiment
Further illustrate the present invention below by embodiment and comparative example.Effective alkali refers to NaOH+1/2Na
2s, the meaning is Na
2after S hydrolysis, generate 1/2 NaOH and 1/2NaSH, all with Na
2o(or NaOH) represent.Effective alkali concentration refers to the concentration of the alkali that can exist with NaOH form in solution.NaOH mass concentration is that 2% alkali lye effective alkali concentration [NaOH] is 0.5 mol/L.
For finally, for reclaiming the alkali lye of circulation use, it is better that effective alkali concentration approaches fresh alkali lye 0.5mol/L, shows that the effective alkali ratio reclaiming is larger, more favourable to recycling.Meanwhile, the hydrochloric acid content that requires every liter of alkali lye to consume is more few better.
Embodiment 1
Utilize while hot inorganic ceramic film that solid impurity is filtered out discarded the Beer bottle washing of discharging from bottle washing machine lye vat alkali lye, then continue to heat/be incubated cleaner liquid to 80
oc.The flocculation gray precipitate that Yin Wendu rising is occurred is carried out secondary filtration, and effective alkali concentration is 0.083mol/L.The hydrochloric acid that is 1.0mol/L by configuration concentration drops in the hot clear liquid after secondary filtration gradually, and fully stirs, and is that every liter of alkali lye consumption hydrochloric acid content of 9.00(is 28.7ml to the pH value of solution), there are a large amount of white precipitates to generate.Precipitation in centrifugation alkali lye, the alkali lye being recycled, effective alkali concentration is 0.453mol/L.Regulating the pH value of alkali lye reclaiming is 13.8 to make it reach service requirements, and effective alkali concentration [NaOH] is about 0.5mol/L.
Embodiment 2
Utilize while hot inorganic ceramic film that solid impurity is filtered out discarded the Beer bottle washing of discharging from bottle washing machine lye vat alkali lye, then continue to heat/be incubated cleaner liquid to 70
oc.The flocculation gray precipitate that Yin Wendu rising is occurred is carried out secondary filtration, and effective alkali concentration is 0.081mol/L.The hydrochloric acid that is 1.0mol/L by configuration concentration drops in the hot clear liquid after secondary filtration gradually, and fully stirs, and is that every liter of alkali lye consumption hydrochloric acid content of 9.30(is 21.2ml to the pH value of solution), there are a large amount of white precipitates to generate.Precipitation in centrifugation alkali lye, the alkali lye being recycled, effective alkali concentration is 0.451mol/L.Regulating the pH value of alkali lye reclaiming is 13.5 to make it reach service requirements, and effective alkali concentration [NaOH] is about 0.5mol/L.
Embodiment 3
Utilize while hot inorganic ceramic film that solid impurity is filtered out discarded the Beer bottle washing of discharging from bottle washing machine lye vat alkali lye, then continue to heat/be incubated cleaner liquid to 60
oc.The flocculation gray precipitate that Yin Wendu rising is occurred is carried out secondary filtration, and effective alkali concentration is 0.0809mol/L.The hydrochloric acid that is 1.0mol/L by configuration concentration drops in the hot clear liquid after secondary filtration gradually, and fully stirs, and is that every liter of alkali lye consumption hydrochloric acid content of 9.50(is 18.9ml to the pH value of solution), there are a large amount of white precipitates to generate.Precipitation in centrifugation alkali lye, the alkali lye being recycled, effective alkali concentration is 0.432mol/L.Regulating the pH value of alkali lye reclaiming is 14.0 to make it reach service requirements, and effective alkali concentration [NaOH] is about 0.5mol/L.
Embodiment 4
Utilize while hot inorganic ceramic film that solid impurity is filtered out discarded the Beer bottle washing of discharging from bottle washing machine lye vat alkali lye, then continue to heat/be incubated cleaner liquid to 60
oc.The flocculation gray precipitate that Yin Wendu rising is occurred is carried out secondary filtration, and effective alkali concentration is 0.0809mol/L.The hydrochloric acid that is 1.0mol/L by configuration concentration drops in the hot clear liquid after secondary filtration gradually, and fully stirs, and is that every liter of alkali lye consumption hydrochloric acid content of 10.02(is 14.8ml to the pH value of solution), there are a large amount of white precipitates to generate.Precipitation in centrifugation alkali lye, the alkali lye being recycled, effective alkali concentration is 0.383mol/L.Regulating the pH value of alkali lye reclaiming is 13.6 to make it reach service requirements, and effective alkali concentration [NaOH] is about 0.5mol/L.
Claims (4)
- Beer bottle washing recycle of alkali liquor with utilize a technology, it is characterized in that described technology comprises the following steps:The filtration of step 1, waste lye and heating: discarded alkali lye carries out the filtering separation of solid impurity, then add heat alkali liquid to 60 oc ~ 80 oc, carries out secondary filtration to emerging precipitation;The titration of step 2, waste lye and precipitate and separate: under fully stirring, to 60 after filtering in step 1 oc ~ 80 othe alkali lye clear liquid adjust pH of C is 9-10; To precipitate with clear liquid and separate;The recovery of step 3, titration clear liquid with recycle: in the isolated clear liquid of step 2, add NaOH, regulating the pH value of clear liquid to make its effective alkali concentration is that [NaOH] is 0.5 mol/L.
- Beer bottle washing recycle of alkali liquor according to claim 1 with utilize technology, it is characterized in that the solid impurity described in step 1 filtration adopt inorganic ceramic film.
- Beer bottle washing recycle of alkali liquor according to claim 1 with utilize technology, it is characterized in that the preferred 9.3-9.5 of pH value described in step 2.
- Beer bottle washing recycle of alkali liquor according to claim 1 with utilize technology, it is characterized in that the adjusting pH value scope described in step 3 is 13.5-14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210512009.1A CN103848517A (en) | 2012-12-04 | 2012-12-04 | Recovery and utilization technology of beer bottle cleaning lye |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210512009.1A CN103848517A (en) | 2012-12-04 | 2012-12-04 | Recovery and utilization technology of beer bottle cleaning lye |
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|---|---|
| CN103848517A true CN103848517A (en) | 2014-06-11 |
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| CN201210512009.1A Pending CN103848517A (en) | 2012-12-04 | 2012-12-04 | Recovery and utilization technology of beer bottle cleaning lye |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109264827A (en) * | 2018-11-02 | 2019-01-25 | 北京市环境保护科学研究院 | Handle the ceramic membrane separation processing method and system of waste polyester bottle piece washes |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101327938A (en) * | 2008-07-17 | 2008-12-24 | 贾向东 | Waste lye regeneration treatment method and processing system |
-
2012
- 2012-12-04 CN CN201210512009.1A patent/CN103848517A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101327938A (en) * | 2008-07-17 | 2008-12-24 | 贾向东 | Waste lye regeneration treatment method and processing system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109264827A (en) * | 2018-11-02 | 2019-01-25 | 北京市环境保护科学研究院 | Handle the ceramic membrane separation processing method and system of waste polyester bottle piece washes |
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Application publication date: 20140611 |