CN107089739A - The enhanced coagulation technique and its device of a kind of biochemical postindustrial waste water - Google Patents
The enhanced coagulation technique and its device of a kind of biochemical postindustrial waste water Download PDFInfo
- Publication number
- CN107089739A CN107089739A CN201710465669.1A CN201710465669A CN107089739A CN 107089739 A CN107089739 A CN 107089739A CN 201710465669 A CN201710465669 A CN 201710465669A CN 107089739 A CN107089739 A CN 107089739A
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- Prior art keywords
- adsorbent
- pond
- enhanced coagulation
- prescription
- making
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention provides a kind of enhanced coagulation technique of biochemical postindustrial waste water, pond of making up a prescription is entered from the multiple distributor pipes for pond bottom of pond of making up a prescription using compressed air conveying adsorbent, it is configured to certain density adsorbent suspension, adsorbent suspension and flocculant solution are added successively after coagulant solution is added, so as to realize enhanced coagulation；Apparatus of the present invention include adsorbent conveying device, and adsorbent conveying device is connected with coagulating basin, and adsorbent conveying device includes compressed air piping, air distribution plate, adsorbent feed bin, air and adsorbent mixtures conveyance conduit, distributor pipe and pond of making up a prescription；Adsorbent is added to coagulating basin by pond of making up a prescription by adsorbent chemical feed pipe；The inventive method can not only reduce field worker labor intensity, and it is uniform to be effectively guaranteed absorbent concentration in coagulating basin, coagulation stable water outlet, it can be widely applied for the coagulating treatment of big yield, the absorption property of adsorbent can be preferably utilized by being classified dosing method, organic matter removal efficiency is significantly improved.
Description
Technical field
The present invention relates to a kind of technique for treating industrial wastewater and device, more particularly to a kind of reinforcing of biochemical postindustrial waste water
Coagulation process and its device, belong to water-treatment technology field.
Background technology
Industrial wastewater has water big, complicated component, the features such as pollutant concentration is high, colourity is high, toxicity is big, at biochemistry
After reason, still there is the organic pollution of a large amount of difficult degradations, it is necessary to which follow-up further advanced treating, can be only achieved discharge standard.Work
Industry waste water typically further removes organic pollution using the method for coagulation-advanced oxidation, used at present after biochemical treatment
Coagulation process COD and colourity removal efficiency it is relatively low, COD removal efficiencies are general in 20%-40%, and colourity removal efficiency is general in 30%-60%,
Coagulation water outlet COD and colourity are higher, cause that the processing load of follow-up advanced oxidation is big, and final outflow water is difficult to reach discharge standard.
Meanwhile, current coagulated agent is added directly to be added using artificial method mostly, and automaticity is low, and labor intensity is big.
In summary, propose a kind of for industrial wastewater bio-chemical effluent, automaticity height, COD and colourity removal efficiency height
Coagulation process and device, be this area urgent problem to be solved.
The content of the invention
In order to solve the above problems, it is an object of the invention to provide a kind of industrial wastewater bio-chemical effluent enhanced coagulation work
Skill, improves the COD and colourity removal efficiency of coagulation workshop section, reduces follow-up workshop section's processing load, final outflow water is easily reached discharge
Standard.
The present invention also aims to provide a kind of adding of agent for matching industrial wastewater bio-chemical effluent enhanced coagulation technique
Device, the device can reduce labor strength, adsorbent suspension is evenly distributed.
The purpose of the present invention is achieved through the following technical solutions：
A kind of enhanced coagulation technique of biochemical postindustrial waste water, adsorbent is conveyed from the multiple of pond bottom of pond that make up a prescription using compressed air
Distributor pipe enters pond of making up a prescription, and is configured to certain density adsorbent suspension, adds absorption successively after coagulant solution is added
Agent suspension and flocculant solution, so as to realize enhanced coagulation.
The adsorbent is the one or more in activated carbon, flyash, semi-coke powder, bentonite and diatomite.
The compound concentration of the adsorbent suspension is 1g/L-100g/L；
Preferably, the compound concentration of the adsorbent suspension is 30-60g/L.
The adsorbent suspension addition is 1ml/L-100ml/L；
Preferably, the adsorbent suspension addition is 10ml/L-30ml/L.
The coagulant solution is polymeric aluminum chlorides solution, polymeric ferrous sulphate solution, aluminum sulfate solution, copperas solution
With the one or more of ferric chloride solution.
The net addition of coagulant solid is 200mg/L-2000mg/L；
Preferably, the net addition of the coagulant solid is 200mg/L-800mg/L.
The flocculant solution is polyacrylamide solution；
Preferably, the net addition of flocculant solid is 1mg/L-10mg/L；
Preferably, the net addition of flocculant solid is 1mg/L-5mg/L.
It is used for the device of biochemical postindustrial waste water enhanced coagulation, described device bag as described above present invention also offers a kind of
Adsorbent conveying device is included, the adsorbent conveying device is connected with coagulating basin.
The adsorbent conveying device includes compressed air piping, air distribution plate, adsorbent feed bin, air and adsorbent mixing
Thing conveyance conduit, distributor pipe and pond of making up a prescription；
Compressed air, which is carried after absorbent particles are evenly distributed by the compressed air piping into air distribution plate, enters adsorbent
Feed bin, so as to enter pond of making up a prescription through distributor pipe by air and adsorbent mixtures conveyance conduit；
Adsorbent suspension is added to coagulating basin by the pond of making up a prescription by adsorbent chemical feed pipe 7.
Compressed air pressure is 10KPa-100KPa in the adsorbent feed bin, and the distributor pipe service area is 0.2-
0.5m2/.
Compared with prior art scheme, the present invention has following technique effect：
1st, the inventive method can not only reduce the labor intensity of field worker using compressed air conveying adsorbent, while into matching somebody with somebody
The compressed air in medicine pond can effectively prevent the precipitation of adsorbent in whipping process, further powder sorbent is evenly distributed, from
And ensure that the absorbent concentration for entering coagulating basin is uniform, improve the stability of coagulation water outlet；
2nd, the inventive method coagulant, activated carbon of sorbent and flocculant are carried out classification and added, and coagulant dosage is mainly used in taking off
Except larger molecular organicses, activated carbon of sorbent is mainly used in adsorbing small organic molecule, and after one-level adds coagulant, two grades again
Progress, which adds adsorbent, can preferably utilize the absorption property of adsorbent, greatly increase the removal effect of organic matter；
3rd, apparatus of the present invention have effectively achieved the enhanced coagulation of biochemical postindustrial waste water, and equipment is simple, and cost is low, flexibly may be used
Control, has a good application prospect.
Brief description of the drawings
Fig. 1 is a kind of biochemical postindustrial waste water enhanced coagulation schematic device of the present invention.
In figure：1- compressed air hoses；2- air distribution plates；3- adsorbent feed bins；4- distributor pipes；5- makes up a prescription pond；6- coagulant adds
Pencil；7- adsorbent chemical feed pipes；8- flocculant chemical feed pipes, 9- coagulating basins.
Embodiment
For the present invention is better described, technical scheme is readily appreciated, below to the present invention further specifically
It is bright.But following embodiments is only the simple example of the present invention, the scope of the present invention is not represented or limits,
Protection scope of the present invention is defined by claims.
As shown in figure 1, a kind of device of biochemical postindustrial waste water enhanced coagulation, including adsorbent conveying device, adsorbent
Conveying device is connected with coagulating basin 9；Adsorbent conveying device includes compressed air piping 1, air distribution plate 2, adsorbent feed bin 3, sky
Gas and adsorbent mixtures conveyance conduit, distributor pipe 4 and pond 5 of making up a prescription；Coagulating basin 9 is as shown in Figure 1 from three-level coagulating basin；
Compressed air carries absorbent particles and enters air distribution plate 2 by compressed air piping 1, and adsorbent is entered after being evenly distributed
Feed bin 3, further enters pond 5 of making up a prescription by air and adsorbent mixtures conveyance conduit through distributor pipe 4；Treat coagulant chemical feed pipe
After 6 dosing coagulant solution, adsorbent suspension is added to coagulating basin 9 by pond 5 of making up a prescription by adsorbent chemical feed pipe 7, is finally led to
Cross flocculant chemical feed pipe 8 and flocculant solution is added to coagulating basin 9, so as to realize enhanced coagulation, coagulation coagulates stable water outlet.
Embodiment 1
Certain Treatment of Coking Effluent factory, bio-chemical effluent COD be 182mg/L, 150 times of colourity, the adsorbent used is activated carbon powder
End, compressed air pressure is 40kpa, and distributor pipe service area is 0.4m2/, is configured to activated carbon suspension concentration for 50g/
L, Powdered Activated Carbon suspension dosage is 20ml/L waste water, uses coagulant for aluminium polychloride, the net dosage of solid is
500mg/L, the net solid dosage of flocculant polyacrylamide is 2mg/L.Water outlet COD is 68mg/L after coagulating treatment, and colourity is
28 times.COD removal efficiencies are 63%, and colourity removal efficiency is 81%.
Embodiment 2
Unlike be the same as Example 1, waste water is that the bio-chemical effluent COD of natural gas from coal is 168,132 times of colourity, the suction used
Water outlet COD is 75mg/L after the attached dose of flyash for plant area, other conditions all same, coagulating treatment, and colourity is 32 times.COD takes off
Except rate is 55%, colourity removal efficiency is 76%.
Embodiment 3
Unlike be the same as Example 1, waste water is that the bio-chemical effluent COD of printing and dyeing industry is 241mg/L, and colourity is 206 times, is used
Adsorbent be diatomite, compressed air pressure is 60kpa, other conditions all same, and water outlet COD is 119mg/L, color after coagulation
Spend for 58 times.COD removal efficiencies are 51%, and colourity removal efficiency is 72%.
Embodiment 4
Unlike be the same as Example 1, bio-chemical effluent COD is 191mg/L, and colourity is 158 times, and the coagulant used is polymerised sulphur
Water outlet COD is 62 mg/L after sour iron, other conditions all same, coagulation, and colourity is 23 times.COD removal efficiencies are 68%, colourity removing
Rate is 85%.
Embodiment 5
Unlike be the same as Example 1, bio-chemical effluent COD is 187mg/L, and colourity is 153 times, and the coagulant used is sulfuric acid
Water outlet COD is 72 mg/L after aluminium, other conditions all same, coagulation, and colourity is 35 times.COD removal efficiencies are 61%, colourity removal efficiency
For 77%.
Embodiment 6
Unlike be the same as Example 1, bio-chemical effluent COD is 176mg/L, and colourity is 144 times, Powdered Activated Carbon suspension dosage
For 10ml/L waste water, other conditions all same, water outlet COD is 72 mg/L after coagulation, and colourity is 39 times.COD removal efficiencies are 59%,
Colourity removal efficiency is 73%.
Applicant's statement, the method for the invention that the present invention is illustrated by above-described embodiment, but the invention is not limited in
Aforesaid operations step, that is, do not mean that the present invention has to rely on aforesaid operations step and could implemented.The technology of art
Personnel it will be clearly understood that any improvement in the present invention, the addition of equivalence replacement and auxiliary element to raw material selected by the present invention,
Selection of concrete mode etc., within the scope of all falling within protection scope of the present invention and being open.
Claims (10)
1. a kind of enhanced coagulation technique of biochemical postindustrial waste water, it is characterised in that using compressed air convey adsorbent from
Multiple distributor pipes of medicine pond bottom of pond enter pond of making up a prescription, and are configured to certain density adsorbent suspension, treat that coagulant solution is added
Adsorbent suspension and flocculant solution are added successively afterwards, so as to realize enhanced coagulation.
2. enhanced coagulation technique as claimed in claim 1, it is characterised in that the adsorbent is activated carbon, flyash, semicoke
One or more in powder, bentonite and diatomite.
3. enhanced coagulation technique as claimed in claim 2, it is characterised in that the compound concentration of the adsorbent suspension is
1g/L-100g/L；
Preferably, the compound concentration of the adsorbent suspension is 30-60g/L.
4. enhanced coagulation technique as claimed in claim 3, it is characterised in that the adsorbent suspension addition is 1ml/L-
100ml/L；
Preferably, the adsorbent suspension addition is 10ml/L-30ml/L.
5. enhanced coagulation technique as claimed in claim 4, it is characterised in that the coagulant solution is that aluminium polychloride is molten
Liquid, polymeric ferrous sulphate solution, aluminum sulfate solution, the one or more of copperas solution and ferric chloride solution.
6. enhanced coagulation technique as claimed in claim 5, it is characterised in that the net addition of coagulant solid is 200mg/
L-2000mg/L；
Preferably, the net addition of the coagulant solid is 200mg/L-800mg/L.
7. enhanced coagulation technique as claimed in claim 6, it is characterised in that the flocculant solution is that polyacrylamide is molten
Liquid, the net addition of flocculant solid is 1mg/L-10mg/L；
Preferably, the net addition of flocculant solid is 1mg/L-5mg/L.
8. a kind of device for being used to realize the enhanced coagulation technique as described in any claim in claim 1-7, its feature
It is, described device includes adsorbent conveying device, the adsorbent conveying device and coagulating basin（9）It is connected.
9. device as claimed in claim 8, it is characterised in that the adsorbent conveying device includes compressed air piping（1）、
Air distribution plate（2）, adsorbent feed bin（3）, air and adsorbent mixtures conveyance conduit, distributor pipe（4）With pond of making up a prescription（5）；
Compressed air carries absorbent particles and passes through the compressed air piping（1）Into air distribution plate（2）Enter after being evenly distributed
Adsorbent feed bin（3）, so that by air and adsorbent mixtures conveyance conduit through distributor pipe（4）Into pond of making up a prescription（5）；
The pond of making up a prescription（5）Pass through adsorbent chemical feed pipe（7）Adsorbent suspension is added to coagulating basin（9）.
10. device as claimed in claim 9, it is characterised in that the adsorbent feed bin（3）Middle compressed air pressure is
10KPa-100KPa, the distributor pipe（4）Service area is 0.2-0.5m2/.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710465669.1A CN107089739A (en) | 2017-06-19 | 2017-06-19 | The enhanced coagulation technique and its device of a kind of biochemical postindustrial waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710465669.1A CN107089739A (en) | 2017-06-19 | 2017-06-19 | The enhanced coagulation technique and its device of a kind of biochemical postindustrial waste water |
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| Publication Number | Publication Date |
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| CN107089739A true CN107089739A (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710465669.1A Withdrawn CN107089739A (en) | 2017-06-19 | 2017-06-19 | The enhanced coagulation technique and its device of a kind of biochemical postindustrial waste water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115093051A (en) * | 2022-06-28 | 2022-09-23 | 重庆市春园环保科技有限公司 | Method for deeply treating coking wastewater |
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| CN102775019A (en) * | 2012-07-25 | 2012-11-14 | 华南理工大学 | Coupling type sewage de-phosphorization purification regeneration treatment technique |
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| CN104740973A (en) * | 2015-03-16 | 2015-07-01 | 河北科技大学 | Recycling device of organic solvent in high-concentration organic waste gas |
| CN205760247U (en) * | 2016-06-30 | 2016-12-07 | 安徽续动环保科技有限公司 | A kind of multifunctional pulse sack cleaner |
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| JPS5531409A (en) * | 1978-08-25 | 1980-03-05 | Asahi Chem Ind Co Ltd | Removing phosphate ion from waste water |
| CN102292297A (en) * | 2009-01-29 | 2011-12-21 | 威立雅水务技术支持公司 | Method for treating water by ballasted flocculation and settlement, including pre-contacting the water with an adsorbent |
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Application publication date: 20170825 |