CN101921031A - Advanced treatment method for heavy alkylbenzene sulfonate (HABS) industrial wastewater - Google Patents
Advanced treatment method for heavy alkylbenzene sulfonate (HABS) industrial wastewater Download PDFInfo
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- CN101921031A CN101921031A CN 201010264716 CN201010264716A CN101921031A CN 101921031 A CN101921031 A CN 101921031A CN 201010264716 CN201010264716 CN 201010264716 CN 201010264716 A CN201010264716 A CN 201010264716A CN 101921031 A CN101921031 A CN 101921031A
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- -1 alkylbenzene sulfonate Chemical class 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000002131 composite material Substances 0.000 claims abstract description 47
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 43
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- AMVQGJHFDJVOOB-UHFFFAOYSA-H aluminium sulfate octadecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O AMVQGJHFDJVOOB-UHFFFAOYSA-H 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 26
- 239000006228 supernatant Substances 0.000 claims description 21
- 238000004062 sedimentation Methods 0.000 claims description 15
- 239000011790 ferrous sulphate Substances 0.000 claims description 4
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 4
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 2
- 239000004411 aluminium Substances 0.000 abstract 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 abstract 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 abstract 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 42
- 239000002351 wastewater Substances 0.000 description 13
- 239000003921 oil Substances 0.000 description 10
- 230000016615 flocculation Effects 0.000 description 9
- 238000005189 flocculation Methods 0.000 description 8
- 239000010865 sewage Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000011084 recovery Methods 0.000 description 7
- 238000005273 aeration Methods 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 230000005518 electrochemistry Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000011206 ternary composite Substances 0.000 description 3
- 101150090066 MDE1 gene Proteins 0.000 description 2
- 101100129649 Schizosaccharomyces pombe (strain 972 / ATCC 24843) mde2 gene Proteins 0.000 description 2
- 101100129650 Schizosaccharomyces pombe (strain 972 / ATCC 24843) mde3 gene Proteins 0.000 description 2
- 101100129651 Schizosaccharomyces pombe (strain 972 / ATCC 24843) mde4 gene Proteins 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 230000003851 biochemical process Effects 0.000 description 2
- 238000010349 cathodic reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses an advanced treatment method for heavy alkylbenzene sulfonate (HABS) industrial wastewater, belonging to the technical field of water treatment and comprising the following steps: regulating the pH value of the HABS industrial wastewater to be 2-4 firstly, feeding the HABS industrial wastewater after pH value regulation in a container, and putting at least two polar plates in the container, wherein the two polar plates are respectively connected with the positive and negative poles of a DC regulated power supply; regulating the current intensity of the DC regulated power supply to 2-10A, and processing for 2-10min, wherein the used polar plates are iron polar plates; standing and settling for 30min, taking supernate, regulating the pH value of the supernate to be 7.5-9.5, pouring a composite water treatment agent based on the mass ratio of 1-2g/L, stirring, and standing and settling for 1h, wherein the composite water treatment agent is prepared by compounding diatomite with aluminum polychloride, ferrous sulphate heptahydrate, aluminum sulfate aluminium sulfate octadecahydrate or polymerized aluminium ferric sulfate based on the mass ratio of 3:1-6. the advanced treatment method in the invention lowers COD index, has simple operation and is easy to realize automatic control, and the generated sludge can be used as an auxiliary material for subgrade and brickmaking, and has relative low cost.
Description
Technical field
The invention belongs to water-treatment technology field, particularly a kind of electrochemistry (ECS) is united advanced treatment is carried out in use to heavy alkylbenzene sulfonate (HABS) industrial wastewater method with the micropore composite water disposal agent.
Background technology
At present, the many oil fields of China have entered the conventional exploitation later stage, use primary oil recovery and secondary oil recovery technology can not satisfy the oil recovery condition, tar productivity is low, and tertiary oil recovery technology can satisfy the oil recovery condition, be a kind of method of effective raising oil recovery factor, in tertiary oil recovery technology, the ternary composite driving of being made up of alkali/tensio-active agent/polymkeric substance is the principal element that improves tar productivity.And that tensio-active agent plays a part in ternary composite driving is very important, directly influences interfacial tension and oil displacement efficiency between flooding system and crude oil.As the surface active agent composition in the ternary composite driving, heavy alkylbenzene sulfonate be most widely used general, technology is the most sophisticated a kind of.And heavy alkylbenzene sulfonate produces a large amount of waste water in process of production, contains a large amount of heavy alkylbenzene sulfonates, sodium sulfate, S-WAT and certain organism in the waste water, and this class COD of sewage (chemical oxygen demand (COD)) can be up to 16000mg/L.
But because the COD of this class sewage is caused by the S-WAT inorganic salt that mainly adopt conventional sewage water treatment method, as biochemical process, Coagulation Method, air supporting method etc., treatment effect is bad, the COD clearance only has about 10%, handles back COD still up to 14000mg/L.But can be stabilized in about 800mg/L through the water outlet COD after the aeration and catalyzing oxidation, its correlative study inventor has patent application (201010204714.6), but still can not satisfy the emission standard of sewage disposal.Contain a large amount of sodium sulfate, heavy alkylbenzene sulfonate and certain organism in this waste water,, adopt biochemical process to be difficult to handle because salts contg is too high.Directly add PAC, flocculation agents such as PFS carry out coagulating treatment, and effect is also undesirable.
Summary of the invention
At the aqueous nature that goes out of the heavy alkylbenzene sulfonate (HABS) industrial wastewater after the aeration and catalyzing oxidation pre-treatment, the use of uniting that the invention provides a kind of electrochemical process and micropore composite water disposal agent is carried out the method for advanced treatment to it.
A kind of method of heavy alkylbenzene sulfonate (HABS) industrial wastewater advanced treatment, it is characterized in that: regulate heavy alkylbenzene sulfonate (HABS) industrial wastewater pH value earlier to 2-4, heavy alkylbenzene sulfonate (HABS) industrial wastewater after the adjusting pH value is put into container, put at least two pole plates in described container, two pole plates connect the positive and negative electrode of constant voltage dc source respectively; The strength of current of regulating constant voltage dc source is handled 2-10min to 2-10A, and employed pole plate is the iron pole plate; Standing sedimentation half an hour again, get supernatant liquor and regulate pH to 7.5-9.5, be that 1-2g/L adds composite water disposal agent by mass ratio then, stir, standing sedimentation 1 hour, use therein composite water disposal agent are that diatomite is 3 with polymerize aluminum chloride, ferrous sulfate, Patent alum or PAFS by mass ratio respectively: 1-6: 1 composite water conditioner.
The present invention adopts electrochemistry and micropore composite water disposal agent to unite the technology of use, it is handled, greatly reduce the COD index, and this technological operation is simple, realize control automatically easily, the mud that is produced can be used as roadbed auxiliary material and brickmaking auxiliary material, turn waste into wealth, and processing cost is relatively low.
Electrochemical techniques are condition with the high voltage low current, utilize electrochemical principle, produce electrochemical reaction by the applying high voltage effect, electric energy is converted into chemical energy, organic or inorganic pollutent in the waste water is carried out oxidation and reduction reaction, produce cohesion, air supporting effect and follow-up flocculation sediment effect, pollutent is separated from water body, can remove the various noxious pollutants such as COD, heavy metal, SS, oil, polymkeric substance and salt in the waste water effectively.Its main reaction principle is as follows:
Electrochemical techniques be with treatment sewage as electrolyte solution, the positive charge side is carried out anodic reaction, the negative charge side is carried out cathodic reaction.With ferroelectric very routine:
Anodic reaction: Fe-2e → Fe
2+
Fe
2++2OH
-→Fe(OH)
2
4Fe(OH)
2+O
2+2H
2O→4Fe(OH)
3↓
Iron ion enters becomes the flocculation center in the water, by in and multiple compound action removal pollutents such as the electric charge of particulate, electrochemical reaction, electrochemistry precipitation, absorption.
Cathodic reaction: 2H
++ 2e → H
2↑
The hydrogen of overflowing forms minimum bubble, with the electrolyte surface of the floating flocculation groove that powers on of the condensation product in the waste water.
But there is reversibility in the water outlet after electrochemical techniques are handled, but under the effect of micropore composite water disposal agent, can impel flocculation irreversible, and can effectively remove the pollutent in the water.
Diatomite is a kind of micropore composite water disposal agent, its housing has a large amount of, the micropore of ordered arrangement, therefore it is big to have porosity, specific surface area is big, characteristics such as adsorptivity is strong, as sewage-treating agent, its effect is mainly as follows: 1) charge neutrality effect, the diatomite surface has electronegativity, in sewage, can neutralize with positively charged heavy metal ion and other pollutents, break original balance electric field, weaken the repulsive force between charged contaminants, impel the contaminants sedimentation of positively charged in the water, and, realize with water body settlement separate attached to diatomaceous micropore surface.To make that electronegative colloidal solid also can take off steady and settlement separate with the composite use of flocculation agent such as polymerize aluminum chloride.2) throwing out, diatomite can promptly be caught pollutent in the sewage water body, and are core with diatomite, form firm flocculation group, and flocculation group separates with water body from sedimentation.3) adsorption, surface porosity and adsorptivity make that taking off steady colloid is adsorbed on the diatomite, and form chain type or the closely knit alumen ustum of group's formula fast, thereby settlement separate.4) decolorization, the dirty diatomite sewage-treating agent by compound preparation can effectively flocculate, adsorb the high chroma organism in the sewage water body, and obtains separating removal with the flocculation that with diatomite is core.
Description of drawings
Fig. 1 is electrochemical treatment waste water ph and COD clearance test curve figure when adopting in the advanced treatment of the present invention alkylbenzene sulfonate (HABS) industrial wastewater.
Fig. 2 when adopting in the advanced treatment of the present invention alkylbenzene sulfonate (HABS) industrial wastewater, electrochemical source of current intensity and COD clearance test curve figure.
Fig. 3 when adopting in the advanced treatment of the present invention alkylbenzene sulfonate (HABS) industrial wastewater, electrochemical treatment time and COD clearance test curve figure.
Fig. 4 when adopting in the advanced treatment of the present invention alkylbenzene sulfonate (HABS) industrial wastewater, waste water ph and COD clearance test curve figure when adding the micropore composite water disposal agent.
Fig. 5 when adopting in the advanced treatment of the present invention alkylbenzene sulfonate (HABS) industrial wastewater, the dosage of micropore composite water disposal agent and COD clearance test curve figure.
Fig. 6 when adopting in the advanced treatment of the present invention alkylbenzene sulfonate (HABS) industrial wastewater, the type of micropore composite water disposal agent and COD clearance test curve figure.
Fig. 7 is when adopting in the advanced treatment of the present invention alkylbenzene sulfonate (HABS) industrial wastewater, and diatomite is composite than COD clearance test curve figure with polymerize aluminum chloride.
Embodiment
The present invention is a research object with the factory effluent of Daqing heavy alkylbenzene sulfonate production company, regulate earlier the heavy alkylbenzene sulfonate waste water ph handled through aeration and catalyzing to certain value, handle by electrochemical techniques again, standing sedimentation half an hour, get supernatant liquor then and regulate pH to certain value, add a certain amount of micropore composite water disposal agent, stir 2-3min, standing sedimentation was got supernatant liquor in 1 hour and is measured the COD value.Heavy alkylbenzene sulfonate waste water COD after the aeration and catalyzing oxidation is greater than 750mg/L, and the pH value is less than 2.
Specific implementation method: regulate earlier the heavy alkylbenzene sulfonate waste water ph handled through aeration and catalyzing to 2-4, the strength of current of regulating constant voltage dc source is to 2-10A, processing 2-10min, and employed pole plate is the iron pole plate.Standing sedimentation half an hour again, get supernatant liquor and regulate pH to 7.5-9.5, be that 1-2g/L adds the micropore composite water disposal agent by mass ratio then, stir 2-3min, standing sedimentation is got supernatant liquor and is measured the COD value after 1 hour, use therein micropore composite water disposal agent is that diatomite is 3 with polymerize aluminum chloride (MDE1), ferrous sulfate (MDE2), Patent alum (MDE3), PAFS (MDE4) by mass ratio respectively: 1-6: 1 composite water conditioner.Embodiment 1: get 1L and place beaker through the heavy alkylbenzene sulfonate waste water of aeration and catalyzing oxidation, regulate the pH branch by sodium hydroxide and be clipped to 2,2.5,3,3.5,4.0, adjusting strength of current is 10A, electrochemical treatment 10min, leave standstill and get supernatant liquor 200mL half an hour, regulate supernatant liquor pH to 8.0 by sodium hydroxide, the dosage of micropore composite water disposal agent is 1g/L, used micropore composite water disposal agent is that diatomite after purifying and polymerize aluminum chloride are with the composite treatment agent of 5: 1 mass ratio, stir 2-3min fast after adding water conditioner, leave standstill 1h, get supernatant liquor and measure COD value, experimental result such as table 1 and shown in Figure 1.
The pH value is to the influence of COD clearance during table 1 electrochemical treatment
Embodiment 2:
Adopt the method for embodiment 1, regulate pH to 2.5 by sodium hydroxide, regulate strength of current and be respectively 2A, 4A, 6A, 8A, 10A, electrochemical treatment 8min, leave standstill and get supernatant liquor 200mL half an hour, regulate water outlet pH to 8.0 by sodium hydroxide, the dosage of micropore composite water disposal agent is 1g/L, used micropore composite water disposal agent is that diatomite after purifying and polymerize aluminum chloride are with the composite treatment agent of 5: 1 mass ratio, after adding water conditioner, stir 2-3min fast, standing sedimentation 1h, get supernatant liquor and measure COD value, experimental result such as table 2 and shown in Figure 2.
Table 2 electrochemical source of current intensity is to the influence of COD clearance
Embodiment 3:
Adopt the method for embodiment 1, regulate pH to 2.5 by sodium hydroxide, regulate strength of current and be respectively 10A, electrochemical treatment 3min, 4min, 6min, 8min, 10min, leave standstill and get supernatant liquor 200mL half an hour, regulate water outlet pH to 8.0 by sodium hydroxide, the dosage of micropore composite water disposal agent is 1g/L, used micropore composite water disposal agent is that diatomite after purifying and polymerize aluminum chloride are with the composite treatment agent of 5: 1 mass ratio, after adding water conditioner, stir 2-3min fast, leave standstill 1h, get supernatant liquor and measure COD value, experimental result such as table 3 and shown in Figure 3.
The table 3 electrochemical treatment time is to the influence of COD clearance
Embodiment 4:
Adopt the method for embodiment 1, regulate pH to 2.5 by sodium hydroxide, regulate strength of current and be respectively 10A, electrochemical treatment 10min, leave standstill and get supernatant liquor 200mL half an hour, regulate water outlet pH by sodium hydroxide and be respectively 7.5,8.0,8.5,9,9.5, the dosage of micropore composite water disposal agent is 1g/L, used micropore composite water disposal agent is that diatomite after purifying and polymerize aluminum chloride are with the composite treatment agent of 5: 1 mass ratio, after adding water conditioner, stir 2-3min fast, standing sedimentation 1h, get supernatant liquor and measure COD value, experimental result such as table 4 and shown in Figure 4.
Waste water ph was to the influence of COD clearance when table 4 added the micropore composite water disposal agent
Embodiment 5:
Adopt the method for embodiment 1, regulate pH to 2.5 by sodium hydroxide, regulate strength of current and be respectively 10A, electrochemical treatment 10min, leave standstill and get supernatant liquor 200mL half an hour, regulate water outlet pH to 8.5 by sodium hydroxide, the dosage of micropore composite water disposal agent is respectively 1g/L, 1.3g/L, 1.6g/L, 1.8g/L, 2g/L, used micropore composite water disposal agent is that diatomite after purifying and polymerize aluminum chloride are with the composite treatment agent of 5: 1 mass ratio, after adding water conditioner, stir 2min fast, standing sedimentation 1h, get supernatant liquor and measure COD value, experimental result such as table 5 and shown in Figure 5.
The dosage of table 5 micropore composite water disposal agent is to the influence of COD clearance
Embodiment 6:
Adopt the method for embodiment 1, regulate pH to 2.5 by sodium hydroxide, regulate strength of current and be respectively 10A, electrochemical treatment 10min, leave standstill and get supernatant liquor 200mL half an hour, regulate water outlet pH to 8.5 by sodium hydroxide, the dosage of micropore composite water disposal agent is 1.8g/L, used micropore composite water disposal agent be after purifying diatomite respectively with polymerize aluminum chloride, ferrous sulfate, Patent alum, PAFS is with the composite water conditioner of 5: 1 mass ratio, after adding water conditioner, stir 2-3min fast, standing sedimentation 1h, get supernatant liquor and measure COD value, experimental result such as table 6 and shown in Figure 6.
The type of table 6 micropore composite water disposal agent is to the influence of COD clearance
| The MDE type | MDE1 | MDE2 | MDE3 | MDE4 |
| COD(mg/L) | 74 | 120 | 100 | 110 |
| COD clearance (%) | 90.2 | 84 | 86.8 | 85.4 |
Embodiment 7:
Adopt the method for embodiment 1, regulate pH to 2.5 by sodium hydroxide, regulate strength of current and be respectively 10A, electrochemical treatment 10min, leave standstill and get supernatant liquor 200mL half an hour, regulate water outlet pH to 8.0 by sodium hydroxide, the dosage of micropore composite water disposal agent is 1.8g/L, used micropore composite water disposal agent is that diatomite after purifying and polymerize aluminum chloride are respectively with 3: 1,4: 1,5: 1, the water conditioner that 6: 1 mass ratio is composite, after adding water conditioner, stir 2-3min fast, standing sedimentation 1h, get supernatant liquor and measure COD value, experimental result such as table 7 and shown in Figure 7.
The influence of the composite comparison of table 7 diatomite and polymerize aluminum chloride COD clearance
Claims (1)
1. the method for a heavy alkylbenzene sulfonate (HABS) industrial wastewater advanced treatment, it is characterized in that: regulate heavy alkylbenzene sulfonate (HABS) industrial wastewater pH value earlier to 2-4, heavy alkylbenzene sulfonate (HABS) industrial wastewater after the adjusting pH value is put into container, put at least two pole plates in described container, two pole plates connect the positive and negative electrode of constant voltage dc source respectively; The strength of current of regulating constant voltage dc source is handled 2-10min to 2-10A, and employed pole plate is the iron pole plate; Standing sedimentation half an hour again, get supernatant liquor and regulate pH to 7.5-9.5, be that 1.0-2.0g/L adds composite water disposal agent by mass ratio then, stir, standing sedimentation 1 hour, use therein composite water disposal agent are that diatomite is 3 with polymerize aluminum chloride, ferrous sulfate, Patent alum or PAFS by mass ratio respectively: 1-6: 1 composite water conditioner.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019125344A1 (en) * | 2017-12-19 | 2019-06-27 | Mykytiuk Oleksandr Yuriiovych | A method for purifying fresh, combined and saline wastewater from radioactive and heavy metals |
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| CN1594550A (en) * | 2004-06-17 | 2005-03-16 | 中国人民解放军军事医学科学院卫生学环境医学研究所 | Method for degradation of linear alkyl benzene sodium sulfonate agrobacterium conn and treatment of water |
| JP2007029802A (en) * | 2005-07-25 | 2007-02-08 | Fuji Xerox Co Ltd | Discharge water treatment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019125344A1 (en) * | 2017-12-19 | 2019-06-27 | Mykytiuk Oleksandr Yuriiovych | A method for purifying fresh, combined and saline wastewater from radioactive and heavy metals |
| US11407665B2 (en) | 2017-12-19 | 2022-08-09 | Unique Equipment Solutions Llc | Method for purifying fresh, combined and saline wastewater from radioactive heavy metals |
| US11795087B2 (en) | 2017-12-19 | 2023-10-24 | Unique Equipment Solutions Llc | System for purifying fresh, combined and saline wastewater from radioactive heavy metals |
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