CN204803176U - Alkali decrement effluent disposal system - Google Patents
Alkali decrement effluent disposal system Download PDFInfo
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- CN204803176U CN204803176U CN201520323795.XU CN201520323795U CN204803176U CN 204803176 U CN204803176 U CN 204803176U CN 201520323795 U CN201520323795 U CN 201520323795U CN 204803176 U CN204803176 U CN 204803176U
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- filter press
- waste water
- out pond
- acid out
- clean water
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Abstract
The utility model discloses an alkali decrement effluent disposal system, including equalizing basin, first delivery pump, acid out pond, second delivery pump, filter press, high -efficient catalytic oxidizer, the biochemical device of AO, out -phase oxidation unit and clean water basin, the export of equalizing basin is through the entry linkage of first delivery pump with the acid out pond, the bottom bin outlet in acid out pond passes through the second delivery pump and is connected with filter press's feed inlet, filter press's discharge gate and equalizing basin are connected, the top delivery port in acid out pond and high -efficient catalytic oxidizer's entry linkage, high -efficient catalytic oxidizer's the export and the entry linkage of the biochemical device of AO, the export of the biochemical device of AO and out -phase oxidation unit's entry linkage, out -phase oxidation unit's export and clean water basin entry linkage, the clean water basin is connected with the discharge tube. The utility model discloses can retrieve terephthalic acid in the waste water, simultaneously with waste water treatment discharge to reach standard.
Description
Technical field
The utility model relates to a kind of water treatment system, is specifically a kind of reduction waste water treatment system used in dyeing.
Background technology
Current trevira has become the important source material of apparel industry, and people utilize Alkali reduction technology, and imparting dacron fabric has the excellent characteristic as silk.Along with the growth of China's polyster fibre output, terylene consumption accounts for 50% of China's piece market, and national polyster fibre annual production 1-11 month to date in 2014 has reached 3257.41 ten thousand tons.
Caustic reduction processing waste water results from terylene artificial silk Alkali reduction operation.Dissolving from polyester piece good the poly-vinegar component overwhelming majority stripped down is present in water with the form of terephthalic acid and ethylene glycol, enters waste water with the oligopolymer of a small amount of different polymerization degree.Therefore, the main ingredient of alkali decrement waste water is terephthalic acid, ethylene glycol, poly-vinegar oligopolymer and a small amount of various auxiliary agents (as N, N-polyoxyethylene pheynylalkylamine, alkali-resistant penetrant, quaternary cationics) etc.Wherein terephthaldehyde's acid content is up to 75%, and oligomer is about 2%.The pollution of caustic reduction processing waste water is very serious, and the every myriametre woven dacron of general decrement needs waste discharge 30 ~ 50t, and COD concentration is high, and basicity is high.The terephthalic acid of high density and the high-molecular oligomers thing of difficult degradation and various auxiliary agents etc., make alkali decrement waste water become dyeing and pollute the dyeing waste water heavy, intractability is large.
Traditional alkali decrement process for waste water processing first alkali is subtracted waste water to carry out acid out, after removing most of terephthalic acid, enters conventional dyeing and finishing wastewater biochemical treatment system.But due to the organism containing a large amount of biodegradability difference in alkali decrement waste water, and its saltiness is higher, is mixed into conventional dyeing and finishing wastewater biochemical treatment system, can causes certain impact to it, causes bulk treatment effect to be affected, effluent quality worsens.
Current caustic reduction processing is generally applied in China, and produce polyester 1,000 ten thousand t per year according to China, the polyester of about 20% carries out alkali deweighting calculating, and up to ten thousand tons of terephthalic acids will be had every year to be dissolved in waste water.Terephthalic acid itself is a kind of purposes industrial raw material very widely, if adopt rational recycling treatment system, not only resource utilization can reclaim phthalic acid, for enterprise creates certain economic benefit, other organic pollutant degradations remaining in waste water are removed simultaneously, emission standard is reached, for enterprise solves environmental issue after making this wastewater treatment.
Summary of the invention
In view of the defect of above-mentioned prior art, the purpose of this utility model is: provide a kind of alkali-reduction wastewater processing system, can reclaim terephthalic acid in waste water, simultaneously by wastewater treatment qualified discharge.
Technical solution of the present utility model is: alkali-reduction wastewater processing system, comprise equalizing tank, first transferpump, acid out pond, second transferpump, plate-and-frame filter press, efficiently catalyzing and oxidizing device, A/O biochemical device, heterogeneous oxidization device and clean water basin, the outlet of described equalizing tank is connected by the entrance of the first transferpump with acid out pond, the bottom discharging mouth in described acid out pond is connected with the opening for feed of plate-and-frame filter press by the second transferpump, the discharge port of described plate-and-frame filter press is connected with equalizing tank, the top water outlet in described acid out pond is connected with the entrance of efficiently catalyzing and oxidizing device, the outlet of described efficiently catalyzing and oxidizing device is connected with the entrance of A/O biochemical device, the outlet of described A/O biochemical device is connected with the entrance of heterogeneous oxidization device, the outlet of described heterogeneous oxidization device is connected with clean water basin entrance, described clean water basin are connected with discharge tube.
Apply alkali-reduction wastewater processing system provided by the utility model, its beneficial effect is: present treatment system not only achieves and reclaims terephthalic acid in waste water, for enterprise reduces cost for wastewater treatment, combine efficient oxidation technology and biological reinforcing technology in present treatment system simultaneously, the oxidable decomposition of efficient oxidation technology can not provide the biodegradability of waste water by biochemical organism, resistance to high salt bacterium is introduced in biological reinforcing technology, solve high salinity reduction waste water and be difficult to biochemical problems, Process for Effluent CODcr is made to control at below 200mg/L, efficiently solve alkali to subtract waste water individual curing and can not process problem up to standard.Native system is rational in infrastructure, easily implements, and can realize valuable resource and recycle, reduce production cost, solve environmental issue again, achieve positive, effective, substantial progress.
Accompanying drawing explanation
Fig. 1 is functional block diagram of the present utility model.
Shown in figure: 1-equalizing tank, 2-first transferpump, 3-acid out pond, 4-second transferpump, 5-plate-and-frame filter press, 6-efficiently catalyzing and oxidizing device, 7-A/O biochemical device, 8-heterogeneous oxidization device, 9-clean water basin, 10-discharge tube.
Embodiment
For more intuitively, intactly understanding the technical solution of the utility model, existing just to carry out nonrestrictive feature description in conjunction with the utility model accompanying drawing as follows:
As shown in Figure 1, alkali-reduction wastewater processing system, comprise equalizing tank 1, first transferpump 2, acid out pond 3, second transferpump 4, plate-and-frame filter press 5, efficiently catalyzing and oxidizing device 6, A/O biochemical device 7, heterogeneous oxidization device 8 and clean water basin 9, the outlet of equalizing tank 1 is connected with the entrance in acid out pond 3 by the first transferpump 2, the bottom discharging mouth in acid out pond 3 is connected with the opening for feed of plate-and-frame filter press 5 by the second transferpump 4, the discharge port of plate-and-frame filter press 5 is connected with equalizing tank 1, the top water outlet in acid out pond 3 is connected with the entrance of efficiently catalyzing and oxidizing device 6, the outlet of efficiently catalyzing and oxidizing device 6 is connected with the entrance of A/O biochemical device 7, the outlet of A/O biochemical device 7 is connected with the entrance of heterogeneous oxidization device 8, the outlet of heterogeneous oxidization device 8 is connected with clean water basin 9 entrance, clean water basin 9 are connected with discharge tube 10.
Equalizing tank 1 is for carrying out the water yield and water quality regulation, and the vitriol oil simultaneously adding 98% in equalizing tank 1 regulates waste water ph, and equalizing tank 1 water outlet is delivered to acid out pond 3 through transferpump.In this equalizing tank 1, aeration tube is set, is uniformly mixed by air aeration.
In pickling tub, supernatant liquor enters follow-up efficiently catalyzing and oxidizing device 6, and acid out pond 3 inner bottom part terephthaldehyde acid deposit enters plate-and-frame filter press 5 by pump delivery and carries out press filtration, reclaims terephthalic acid particles, achieves the recycling of valuable material; The filtrate of plate-and-frame filter press 5 is returned and is entered equalizing tank 1.
The effect of efficiently catalyzing and oxidizing device 6 is that direct or indirect for the macromolecular substance of difficult for biological degradation in waste water is resolved into easily biochemical small organic molecule or be directly mineralized into CO
2with H
2o.Not only effectively can be improved the biodegradability of waste water by native system, can COD be reduced simultaneously
cr.Containing electrode in efficiently catalyzing and oxidizing device 66 (take graphite as negative electrode, Ti-Ru electrode is anode) and the composite catalyst that forms of transiting group metal elements (Fe-Cu-Ti), certain oxygenant is added, the preferred air of oxygenant, oxygen or H in operational process
2o
2: as adopted air aeration, gas-water ratio is 10: 1 ~ 20: 1; As adopted oxygen, gas-water ratio is 2: 1 ~ 3: 1; As adopted H
2o
2for oxygenant, dosage is 100-300mg/L.Efficiently catalyzing and oxidizing device 66 treatment time is 20 ~ 30min.
The effect of A/O biochemical device 77 to be given up Organic substance in water by microbial decomposition, reduces waste water COD
crvalue.When A/O biochemical device 7 starts, the high salt bacterium that need add this waste water height salt characteristic applicable carries out biological reinforced.
The effect of heterogeneous oxidization device 8 is the organism by being decomposed by the microorganisms in A/O biochemical device 7 in chemical oxidative decomposition waste water, guarantees the COD of the waste water after processing
cr≤ 200mg/L, meets and receives tube drainage requirement.Need to add H in heterogeneous oxidization device 8
2o
2as oxygenant, dosage is 200 ~ 800mg/L.
The effect of clean water basin 9 is collection and treatment waste water up to standard, simultaneously also can as detection sampling pool.Clean water basin 9 are connected with discharge water pipe.
Alkali-reduction wastewater processing system provided by the utility model, not only achieve and reclaim terephthalic acid in waste water, for enterprise reduces cost for wastewater treatment, combine efficient oxidation technology and biological reinforcing technology in present treatment system simultaneously, the oxidable decomposition of efficient oxidation technology can not provide the biodegradability of waste water by biochemical organism, resistance to high salt bacterium is introduced in biological reinforcing technology, solve high salinity reduction waste water and be difficult to biochemical problems, make Process for Effluent CODcr control at below 200mg/L, efficiently solve alkali and subtract waste water individual curing and can not process problem up to standard.Native system is rational in infrastructure, easily implements, and can realize valuable resource and recycle, reduce production cost, solve environmental issue again, achieve positive, effective, substantial progress.
Certainly; these are only preferred embodiment of the present utility model; non-ly therefore namely limit to the scope of the claims of the present utility model, all utilization the utility model specification sheetss and graphic content institute be simple and easy modification and equivalent structure change for it, all should in like manner be contained within scope of patent protection of the present utility model.
Claims (1)
1. alkali-reduction wastewater processing system, it is characterized in that: comprise equalizing tank, first transferpump, acid out pond, second transferpump, plate-and-frame filter press, efficiently catalyzing and oxidizing device, A/O biochemical device, heterogeneous oxidization device and clean water basin, the outlet of described equalizing tank is connected by the entrance of the first transferpump with acid out pond, the bottom discharging mouth in described acid out pond is connected with the opening for feed of plate-and-frame filter press by the second transferpump, the discharge port of described plate-and-frame filter press is connected with equalizing tank, the top water outlet in described acid out pond is connected with the entrance of efficiently catalyzing and oxidizing device, the outlet of described efficiently catalyzing and oxidizing device is connected with the entrance of A/O biochemical device, the outlet of described A/O biochemical device is connected with the entrance of heterogeneous oxidization device, the outlet of described heterogeneous oxidization device is connected with clean water basin entrance, described clean water basin are connected with discharge tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520323795.XU CN204803176U (en) | 2015-05-14 | 2015-05-14 | Alkali decrement effluent disposal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520323795.XU CN204803176U (en) | 2015-05-14 | 2015-05-14 | Alkali decrement effluent disposal system |
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| Publication Number | Publication Date |
|---|---|
| CN204803176U true CN204803176U (en) | 2015-11-25 |
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ID=54588030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520323795.XU Expired - Fee Related CN204803176U (en) | 2015-05-14 | 2015-05-14 | Alkali decrement effluent disposal system |
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| Country | Link |
|---|---|
| CN (1) | CN204803176U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369421A (en) * | 2015-11-26 | 2016-03-02 | 余燕平 | Preparing method of non-twist textiles or hollow textiles or highly-branched textiles and methods for recycling solute of alkali solutions |
| CN107032554A (en) * | 2016-11-22 | 2017-08-11 | 浙江丰林亚麻染整有限公司 | A kind of alkali decrement waste water dual treatment method and apparatus |
| CN108946873A (en) * | 2018-06-19 | 2018-12-07 | 苏州新能环境技术股份有限公司 | A kind of technique that embrane method processing alkali decrement waste water realizes lye reuse and antimony removal |
-
2015
- 2015-05-14 CN CN201520323795.XU patent/CN204803176U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369421A (en) * | 2015-11-26 | 2016-03-02 | 余燕平 | Preparing method of non-twist textiles or hollow textiles or highly-branched textiles and methods for recycling solute of alkali solutions |
| CN107032554A (en) * | 2016-11-22 | 2017-08-11 | 浙江丰林亚麻染整有限公司 | A kind of alkali decrement waste water dual treatment method and apparatus |
| CN108946873A (en) * | 2018-06-19 | 2018-12-07 | 苏州新能环境技术股份有限公司 | A kind of technique that embrane method processing alkali decrement waste water realizes lye reuse and antimony removal |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20180514 |
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| CF01 | Termination of patent right due to non-payment of annual fee |