CN105731725B - The processing method of anion surfactant in a kind of removal sanitary wastewater - Google Patents

The processing method of anion surfactant in a kind of removal sanitary wastewater Download PDF

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Publication number
CN105731725B
CN105731725B CN201610097971.1A CN201610097971A CN105731725B CN 105731725 B CN105731725 B CN 105731725B CN 201610097971 A CN201610097971 A CN 201610097971A CN 105731725 B CN105731725 B CN 105731725B
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anion
tank
separating tank
outlet
hall effect
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CN105731725A (en
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严建辉
许瑞娥
聂莉
李伟佳
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Guangzhou green company
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Guangzhou Green Co
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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
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • 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
    • C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
    • C02F1/484—Treatment of water, waste water, or sewage with magnetic or electric fields using electromagnets
    • 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
    • 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
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • 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
    • C02F2001/007—Processes including a sedimentation step
    • 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
    • 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
    • C02F2101/301—Detergents, surfactants
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

The invention discloses a kind of processing method for removing anion surfactant in sanitary wastewater, the sanitary wastewater containing anion surfactant passes sequentially through sump, coarse rack, primary sedimentation basin, pH value regulating reservoir, anion Hall effect separating tank, aeration nitrification tank, biological denitrificaion pond, secondary sedimentation tank, water purifying tank.This method creativeness make use of a kind of electromagnetic induction phenomenon for being known as Hall effect, and when electric current is conducted perpendicular to external magnetic field in wastewater trough, carrier can deflect, and an additional electric field can be produced on the direction in electric current and magnetic field.Electrical potential difference can be produced in sink above-below direction, so that downward movement occurs for the anionic surface active substances ion in waste water, so as to be enriched with bottom of gullet, sludge material be gradually formed, so that anion surfactant be removed from waste water.

Description

The processing method of anion surfactant in a kind of removal sanitary wastewater
Technical field
The present invention relates to a kind of processing method for removing anion surfactant in sanitary wastewater, belong in environmental protection Field of waste water treatment.
Background technology
Surfactant（surfactant）Refer to that there is certain property, structure and Interfacial Adsorption performance, can significantly reduce A kind of material of solvent surface tension or liquid-liquid, liquid-liquid/solid interface tension force.Its english name surfactant is exactly The compound word of surfaceactiveagent, represents that " surfactant can exactly make surface（Or interface）The thing of increased activity Matter ".I.e. after surfactant is dissolved in water, according to whether generation ion and its electrically, be divided into ionic surfactant and Nonionic surface active agent.By the dissociation qualitative classification of polar group, surfactant have ionic surfactant, it is non-from Subtype surfactant, special surfactant.
In recent years, the industrial development of China's chemical synthesis anion surfactant is rapid, the production of anion surfactant Amount increases year by year.And the anion surfactant of the overwhelming majority is discharged into river, sea after without dealing carefully with present In the natural waters such as ocean, often result in water pollution and the horizontal winged scene of foam occur, while consume the dissolved oxygen in water, influence Water quality.Although the current poor anion surfactant of biodegradability is eliminated substantially, widely use Anion surfactant it is biodegradable, even but the anion surfactant of low concentration can also produce largely Foam, not only have impact on the aesthetic feeling of natural water landscape, and its bio-toxicity also directly threatens the existence of aquatic animals and plants.Ring One of important pollution sources of border water body are the anion surfactants in urban life waste water.
At present, existing sanitary wastewater anionic surfactant treatment method can be divided into physical-chemical process and bioanalysis two Major class.
（1）Physical-chemical process：Common physical-chemical process mainly includes absorption method, foam method, Coagulation Method, membrane separation process, micro- Electrolysis, catalytic oxidation etc., the general adaptability of these methods is stronger, and selectivity is wide, but treatment effect is not ideal enough, is processed into This is higher.
（2）Bioanalysis：Biochemical method contains surface active agent wastewater, is that can regard organic matter as nutrition by the use of microorganism Material, makes one part be absorbed into the organic principle in microbial body or be proliferated into new microorganism, remainder can A kind of method of simple organic or inorganic material is resolved into by microbiological oxidation.Its treatment effect is preferable, but there are technology to answer Miscellaneous, the shortcomings for the treatment of effect is unstable.
Since above-mentioned traditional treatment method is there are the shortcomings of of high cost, technical sophistication, unstable treatment effect, have Necessity breaks away from existing treatment technology thinking, hews out the new way of processing sanitary wastewater anion surfactant, Jin Erkai The sanitary wastewater anionic surfactant treatment technology for sending out new type a kind of.
The content of the invention
To solve the deficiencies in the prior art, remove anionic surface in sanitary wastewater the present invention provides one kind and live The processing method of property agent, the sanitary wastewater containing anion surfactant enter sump by waste line, are collected herein Middle collection and preliminarily stabilised are adjusted, and the outlet of sump connects coarse rack by waste line, are removed at this in sanitary wastewater Major diameter solid matter, the outlet of coarse rack connects primary sedimentation basin by waste line, in this further removes waste water Insoluble matter, the outlet of primary sedimentation basin connect pH value regulating reservoir by waste line, and waste water is neutralized goes forward side by side herein Row pH value is adjusted, and the pH value range of water outlet is about 6.0 ~ 7.0, the outlet of pH value regulating reservoir by waste line connect anion- Hall effect separating tank, the outlet of anion-Hall effect separating tank connect aeration nitrification tank by waste line, pass through herein Aerobic aeration process, makes the various nitrogen substances in waste water be converted into nitrate nitrogen, the outlet for being aerated nitrification tank passes through waste water Pipeline connection biological denitrificaion pond, its act on be by bioactivity reaction process, by the nitrate nitrogen decomposition and inversion in waste water, from And nitrate nitrogen is removed, the outlet in biological denitrificaion pond connects secondary sedimentation tank by waste line, at this by the residue in waste water Insoluble matter all removes, and the outlet of secondary sedimentation tank connects water purifying tank by waste line, and the outlet of water purifying tank passes through waste water Pipeline will be arranged outside the purification water outlet after processing；Wherein, anion-Hall effect separating tank uses ceramic insulation material, separating tank Left end and right end medium position are respectively equipped with a underwater electrode, and the horizontally disposed frame-type DC electromagnet in separating tank periphery surrounds Three side of groove body, enables magnetic induction line to be equipped with inlet valve horizontal through separating tank, separating tank left side lower section, be equipped with out above right side Penstock, lower right-hand side are equipped with sludge row's mouth；Sanitary wastewater after pH value adjusting processing passes through anion-Hall effect point Inlet valve from lower section on the left of groove enters inside separating tank, and frame-type DC electromagnet, which is powered, at this time produces in a horizontal direction Magnetic field, while two underwater electrodes at left and right sides of separating tank start to discharge, and produce one in the horizontal direction perpendicular to magnetic Feel the electric current of line, an additional electric field can be produced on magnetic field and sense of current at this time, make separating tank above-below direction Electrical potential difference is produced, so that downward movement occurs for the anionic surface active substances ion in waste water, and in separation trench bottom Enrichment, gradually forms sludge material, periodically can discharge the sludge material for separating trench bottom accumulation via sludge row's mouth, and do outer Fortune processing；Wherein, the underwater electrode at left and right sides of anion-Hall effect separating tank produces a stable electricity in separating tank Stream.
The dischargeable capacity of its anion-Hall effect separating tank is 230m3, its underwater electrode connection DC power supply, its work It is 380V to make voltage, and service life is more than 9000h.
The frame-type DC electromagnet of its anion-Hall effect separating tank periphery accesses direct current at work, its work It is 380V to make voltage, can produce the electromagnetic field that magnetic induction is 30T.
The advantage of the invention is that：
（1）This method has broken away from existing sanitary wastewater anion surfactant purified treatment principle, creative profit With a kind of electromagnetic induction phenomenon for being known as Hall effect, electromagnet and sparking electrode are respectively arranged on suitable position, Magnetic induction line direction and current direction is prolonged two horizontal directions respectively and at right angles pass through sink, you can produced in sink above-below direction Electrical potential difference, so that downward movement occurs for the anionic surface active substances ion in waste water, so that rich in separation trench bottom Collection, gradually forms sludge material, so that anion surfactant be removed from waste water.Its anion surfactant Removal efficiency is up to 99.0%
（2）This method employs underwater electrode discharge design, makes electric current sufficiently conductive in waste water, improves separation reaction Efficiency, improves the disposal ability of whole system.
（3）This method is without using any chemical agent, so as to eliminate the wind for introducing pollutant that is new, endangering bigger Danger.
（4）This method principle is simple and practicable, and design and construction cost is relatively low, and treatment effect is preferable, operation expense It is very low, be conducive to promote and apply on a large scale.
Brief description of the drawings
Fig. 1 is the equipment schematic diagram of the present invention.
In figure：1- sumps, 2- coarse racks, 3- primary sedimentation basins, 4-pH values regulating reservoir, 5- anion-Hall effect point From groove, 6- aerations nitrification tank, 7- biological denitrificaions pond, 8- secondary sedimentation tanks, 9- water purifying tanks
Fig. 2 is the schematic diagram of anion-Hall effect separating tank.
The underwater electrodes of 51-, 52- frame-types DC electromagnet, 53- ceramic insulations groove body, 54- inlet valves, 55- outlet valves Door, 56- sludge row's mouth.
Embodiment
The processing method for removing anion surfactant in sanitary wastewater as shown in Figure 1, containing anion surface active The sanitary wastewater of agent enters sump 1 by waste line, carries out centralized collection herein and preliminarily stabilised is adjusted, sump 1 Outlet connects coarse rack 2 by waste line, and the major diameter solid matter in sanitary wastewater, the outlet of coarse rack 2 are removed at this Primary sedimentation basin 3 is connected by waste line, in this insoluble matter in further removing waste water, the outlet of primary sedimentation basin 3 PH value regulating reservoir 4 is connected by waste line, waste water is neutralized and carries out the accurate adjusting of pH value herein, and pH value is adjusted The pH value range of 4 water outlet of pond is 6.0 ~ 7.0, to meet that the water pH value that enters of anion-Hall effect separating tank 5 requires, pH value tune The outlet for saving pond 4 connects anion-Hall effect separating tank 5 by waste line, and anion-Hall effect separating tank 5 goes out Mouth connects aeration nitrification tank 6 by waste line, herein by aerobic aeration process, the various nitrogen substances in waste water is turned Nitrate nitrogen is turned to, the outlet for being aerated nitrification tank 6 connects biological denitrificaion pond 7 by waste line, and it is living by biology that it, which is acted on, Property reaction process, by the nitrate nitrogen decomposition and inversion in waste water, so as to remove nitrate nitrogen, the outlet in biological denitrificaion pond 7 passes through Waste line connects secondary sedimentation tank 8, all removes the remaining insoluble matter in waste water at this, the outlet of secondary sedimentation tank 8 Water purifying tank 9 is connected by waste line, the outlet of water purifying tank 9 is by waste line by the purification water outlet after the system is handled Outer row；Wherein, anion-Hall effect separating tank 5 uses ceramic insulation material, and separating tank left end and right end medium position respectively fill There is a underwater electrode 51, the horizontally disposed frame-type DC electromagnet 52 in separating tank periphery surrounds three side of groove body, makes magnetic induction line Can be horizontal through separating tank, lower section be equipped with inlet valve 54 on the left of separating tank, and right side top is equipped with flowing water Valve 55, under right side Side is equipped with sludge row's mouth 56；After pH value adjusting processing（PH value is 6.0 ~ 7.0 after processing）Sanitary wastewater by anion- The inlet valve 54 of the left side of Hall effect separating tank 5 lower section enters inside separating tank, and frame-type DC electromagnet 52 is powered at this time Produce the magnetic field in a horizontal direction, while two underwater electrodes 51 at left and right sides of separating tank start to discharge, produce one Perpendicular to the electric current of magnetic induction line in horizontal direction, at this time, on magnetic field and sense of current（That is vertical direction）It can produce One additional electric field, makes separating tank above-below direction produce electrical potential difference so that anionic surface active substances in waste water from Downward movement occurs for son, and is enriched with separation trench bottom, gradually forms sludge material, can will periodically separate trench bottom accumulation Sludge material is discharged via sludge row's mouth 56, and does outward transport processing；Wherein, at left and right sides of anion-Hall effect separating tank 5 Underwater electrode 51 passes through preservative treatment, can connect the direct current of 380V, and a stabling current is produced in separating tank；Wherein pH The effect of value regulating reservoir 4 is will to be adjusted by the pH value of waste water of primary sedimentation to 6.0 ~ 7.0, to meet anion-Hall effect Separating tank 5 enters the requirement of water pH value；Wherein, the effect for being aerated nitrification tank 6 is by aerobic aeration process, is made various in waste water Nitrogen substance is converted into nitrate nitrogen；Wherein, the effect in biological denitrificaion pond 7 is by bioactivity reaction process, by waste water In nitrate nitrogen decomposition and inversion, so as to remove nitrate nitrogen.
Sanitary wastewater after being handled by the system, its anion surfactant removal efficiency is up to 99.0%.
The dischargeable capacity of its anion-Hall effect separating tank 5 is 230m3, its underwater connection of electrode 51 DC power supply, its Operating voltage is 380V, and service life is more than 9000h.The frame-type direct solenoid of the periphery of its anion-Hall effect separating tank 5 Iron 52 accesses direct current at work, its operating voltage is 380V, can produce the electromagnetic field that magnetic induction is 30T.

Claims (3)

1. a kind of processing method for removing anion surfactant in sanitary wastewater, it is characterised in that live containing anionic surface Property agent sanitary wastewater sump is entered by waste line, carrying out centralized collection and preliminarily stabilised herein is adjusted, sump Outlet connects coarse rack by waste line, the major diameter solid matter in sanitary wastewater is removed at this, the outlet of coarse rack leads to Waste line connection primary sedimentation basin is crossed, in this insoluble matter in further removing waste water, the outlet of primary sedimentation basin passes through Waste line connects pH value regulating reservoir, and waste water is neutralized and carries out pH value adjusting herein, and the pH value range of water outlet is 6.0 ~ 7.0, the outlet of pH value regulating reservoir connects anion-Hall effect separating tank, anion-Hall effect point by waste line Outlet from groove connects aeration nitrification tank by waste line, herein by aerobic aeration process, makes various nitrogenous in waste water Material is converted into nitrate nitrogen, and the outlet for being aerated nitrification tank connects biological denitrificaion pond by waste line, its effect is to pass through Bioactivity reaction process, by the nitrate nitrogen decomposition and inversion in waste water, so that nitrate nitrogen is removed, the outlet in biological denitrificaion pond Secondary sedimentation tank is connected by waste line, is all removed the remaining insoluble matter in waste water at this, secondary sedimentation tank goes out Mouth connects water purifying tank by waste line, and the outlet of water purifying tank passes through waste line by row outside the purification water outlet after processing；Wherein, Anion-Hall effect separating tank uses ceramic insulation material, and separating tank left end and right end medium position are respectively underwater equipped with one Electrode, the horizontally disposed frame-type DC electromagnet in separating tank periphery surround three side of groove body, enable magnetic induction line horizontal through point From groove, lower section is equipped with inlet valve on the left of separating tank, and flowing water Valve is equipped with above right side, and lower right-hand side is equipped with sludge row's mouth；Through The sanitary wastewater crossed after pH value adjusting processing enters separation by the inlet valve of lower section on the left of anion-Hall effect separating tank Inside groove, frame-type DC electromagnet energization at this time produces the magnetic field in a horizontal direction, while two at left and right sides of separating tank The underwater electrode of branch starts to discharge, and one is produced in the horizontal direction perpendicular to the electric current of magnetic induction line, at this time perpendicular to magnetic field and electricity An additional electric field can be produced on the direction of stream, separating tank above-below direction is produced electrical potential difference so that in waste water it is cloudy from Downward movement occurs for sub- surface reactive material ion, and in separation trench bottom enrichment, gradually forms sludge material, can periodically by The sludge material of trench bottom accumulation is separated via sludge row's mouth discharge；Wherein, at left and right sides of anion-Hall effect separating tank Underwater electrode produces a stabling current in separating tank.
2. processing method according to claim 1, it is characterised in that the dischargeable capacity of anion-Hall effect separating tank For 230m3, its underwater electrode connection DC power supply, its operating voltage is 380V.
3. processing method according to claim 1, it is characterised in that the frame of anion-Hall effect separating tank periphery Formula DC electromagnet accesses direct current at work, its operating voltage is 380V, can produce the electromagnetic field that magnetic induction is 30T.
CN201610097971.1A 2016-02-23 2016-02-23 The processing method of anion surfactant in a kind of removal sanitary wastewater Active CN105731725B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000051862A (en) * 1998-08-10 2000-02-22 Hisao Kobayashi Production of water with surface active function and reducing function strengthened and activated hydrogen enriched
CN105036263A (en) * 2015-07-11 2015-11-11 汪金龙 Electromagnetic centrifugal type water purifier
CN105253991A (en) * 2015-10-20 2016-01-20 浙江工商大学 Electromagnetic field coupling desalting device with pollution reduction function and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000051862A (en) * 1998-08-10 2000-02-22 Hisao Kobayashi Production of water with surface active function and reducing function strengthened and activated hydrogen enriched
CN105036263A (en) * 2015-07-11 2015-11-11 汪金龙 Electromagnetic centrifugal type water purifier
CN105253991A (en) * 2015-10-20 2016-01-20 浙江工商大学 Electromagnetic field coupling desalting device with pollution reduction function and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
磁强化Fenton试剂降解表面活性剂污水的实验研究;姜春华等;《环境科学与管理》;20121031;第37卷(第10期);第122-125,135页 *

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