CN107098537A - Municipal wastewater handling process - Google Patents
Municipal wastewater handling process Download PDFInfo
- Publication number
- CN107098537A CN107098537A CN201710277757.9A CN201710277757A CN107098537A CN 107098537 A CN107098537 A CN 107098537A CN 201710277757 A CN201710277757 A CN 201710277757A CN 107098537 A CN107098537 A CN 107098537A
- Authority
- CN
- China
- Prior art keywords
- municipal wastewater
- polymeric adsorbent
- sterilization pool
- nano silver
- handling process
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 239000010841 municipal wastewater Substances 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000008569 process Effects 0.000 title claims abstract description 25
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 67
- 239000003463 adsorbent Substances 0.000 claims abstract description 47
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 46
- 239000010865 sewage Substances 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 33
- 239000002131 composite material Substances 0.000 claims abstract description 30
- 238000004062 sedimentation Methods 0.000 claims abstract description 19
- 238000001556 precipitation Methods 0.000 claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims abstract description 14
- 238000000746 purification Methods 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 44
- 230000001954 sterilising effect Effects 0.000 claims description 38
- 238000012545 processing Methods 0.000 claims description 17
- 230000003647 oxidation Effects 0.000 claims description 13
- 238000007254 oxidation reaction Methods 0.000 claims description 13
- 239000000701 coagulant Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- MFPVDOIQNSMNEW-UHFFFAOYSA-N silver oxygen(2-) titanium(4+) Chemical compound [O--].[O--].[Ti+4].[Ag+] MFPVDOIQNSMNEW-UHFFFAOYSA-N 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical compound [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 3
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 claims description 3
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 1
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- 230000000249 desinfective effect Effects 0.000 claims 1
- 230000002045 lasting effect Effects 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
- 230000007306 turnover Effects 0.000 claims 1
- 241000894006 Bacteria Species 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract description 4
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000011068 loading method Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 10
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- -1 hydroxyl radical free radical Chemical class 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000005286 illumination Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- MVZXTUSAYBWAAM-UHFFFAOYSA-N iron;sulfuric acid Chemical group [Fe].OS(O)(=O)=O MVZXTUSAYBWAAM-UHFFFAOYSA-N 0.000 description 1
- 210000002429 large intestine Anatomy 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- 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
- 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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- 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
Landscapes
- 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 Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of municipal wastewater handling process, including grid filtration, regulating reservoir buffering, preliminary sedimentation, sewage purification, secondary precipitation, disinfection, sewage discharge.The present invention has advantages below and effect：Using grid filtration municipal wastewater; remove the solid impurity in municipal wastewater; row buffering is entered to municipal wastewater with regulating reservoir; sewage purification is carried out after preliminary sedimentation; disinfection is carried out after secondary precipitation, by the loading nano silvery composite titania material in polymeric adsorbent, to municipal wastewater disinfection; sewage effluent, has reached the bacterium killed in municipal wastewater, purification municipal wastewater, has reduced pollution, the effect of environmental protection.
Description
Technical field
The present invention relates to municipal drainage field, more particularly to a kind of municipal wastewater handling process.
Background technology
With the high speed development of economic construction, population is continuously increased, and particularly urban population drastically expands, national sewage
Discharge capacity rapid growth.Going from bad to worse for water quality is the major reason of urban rainwater resources shortage, not only constrains sustainable development
Exhibition, and the ecological balance of destruction water environment, threaten the life health of city dweller.It is dirty that municipal wastewater mainly includes industry
Water, hospital sewage and sanitary sewage etc., contain organic pollution mostly in municipal wastewater, cause bacterial content high, directly arrange
It is put into the pollution that environment water is easily caused in environment water.
Authorization Notice No. is CN205803269U Chinese patent《A kind of purifying processing device of municipal wastewater pipe network》It is public
A kind of purifying processing device of municipal wastewater pipe network, including multiple sewage disposal systems being connected with municipal wastewater house steward have been opened,
The water purification station being connected with sewage disposal system；Wherein, each sewage disposal system is more on municipal wastewater house steward including being installed on
Individual sewage treating tube, the sewage pump on each sewage treating tube, and the sewage disposal being connected with multiple sewage treating tubes
Stand, Sewage Disposal includes sedimentation basin, biodegradable pond, biological acidification pond and the oxidation pond being sequentially connected, and the sedimentation basin
Be connected with multiple sewage treating tubes, the oxidation pond is connected by a pure water pipe with water purification station, the water purification station also with a draining
Pipe is connected, in addition to a methane-generating pit, and the methane-generating pit is connected with the bottom of the sedimentation basin.
But the purifying processing device of above-mentioned municipal wastewater pipe network exist typically contained in problems with, municipal wastewater it is a large amount of
Microorganism, above-mentioned purifying processing device is not handled the bacterium in municipal wastewater, is discharged into after environment water and is easily made
Into pollution, the ecological balance of welding water body.
The content of the invention
It is an object of the invention to provide a kind of municipal wastewater handling process, the effect with bacterium in processing municipal wastewater.
The present invention above-mentioned technical purpose technical scheme is that：A kind of municipal wastewater handles work
Skill, including step 1, grid filtration, by municipal wastewater conveying by grid maker, are filtered to municipal wastewater；Step 2, adjust
Pond is buffered, and will be discharged into by the municipal wastewater of grid maker in regulating reservoir；Step 3, preliminary sedimentation, the municipal administration in regulating reservoir is dirty
Water is transported in preliminary sedimentation tank, precipitation process 2-5 hours；Step 4, sewage purification, the municipal wastewater on preliminary sedimentation tank upper strata is transported to
In biological contact oxidation pond, municipal wastewater is purified；Step 5, secondary precipitation, the municipal administration after being purified in biological contact oxidation pond is dirty
Water is transported in tube settler, is handled 1-4 hours；Step 6, disinfection, the municipal administration after being handled in tube settler is dirty
Water is transported in sterilization pool, is placed with sterilization pool in polymeric adsorbent, polymeric adsorbent and is loaded with Nano Silver-titanium dioxide composite wood
Material, while with uviol lamp to being irradiated in sterilization pool；Step 7, sewage discharge, will disinfect rear municipal sewage discharge to ambient water
In vivo.
By using above-mentioned technical proposal, during processing municipal wastewater, by municipal wastewater conveying by grid maker, grid maker is
It is a kind of continuously to remove the solid-liquid separating equipment of debris in fluid, the solid sundries in municipal wastewater are separated.It is municipal dirty
Water by being entered after grid maker in regulating reservoir, regulating reservoir be with certain volume adjusted with adapt to municipal wastewater water variation
Pond.Municipal wastewater after regulating reservoir by entering preliminary sedimentation tank, in preliminary sedimentation tank after preliminary sedimentation, into biological contact oxidation pond
It is interior.
Biological contact oxidation pond includes pond body, filler, water replanishing device, aerator etc., is usually used in sewage disposal, city
Political affairs sewage is entered be cleaned in biological contact oxidation pond after, carry out secondary precipitation, municipal wastewater entered in tube settler
Afterwards, precipitation process is carried out.Tube settler refers to the sedimentation basin that inclined tube is provided with settling zone.
Municipal wastewater after precipitation process, is entered in sterilization pool in tube settler, is set and is inhaled in sterilization pool
Attached resin, polymeric adsorbent is loaded with Nano Silver-composite titania material.Uviol lamp is set in sterilization pool, and uviol lamp can be right
Municipal wastewater plays bactericidal action, but penetration capacity is very weak, ultra violet lamp after Nano Silver-composite titania material,
Titanium dioxide is activated, produce hydroxyl radical free radical (OH) and superoxide anion radical, they can directly be attacked carefully
The cell of bacterium, kills bacterium with this and is allowed to decompose.Nano Silver can fight for the electronics in titanium dioxide, reduce nano titanium oxide
Light electronics is compound with light hole, so as to promote nano titanium oxide to produce more hydroxyl radical free radicals (OH) and super oxygen
Compound radical anion, significantly improves bactericidal property.
Nano Silver-composite titania material is supported on polymeric adsorbent, Nano Silver-composite titania material can be molten
Silver ion is solved, the bacterium in municipal wastewater is killed.When the bacterium in municipal wastewater touches Nano Silver-titanium dioxide composite wood
During material, the hydroxyl radical free radical (OH) and superoxide anion radical produced by Nano Silver-composite titania material is killed
Go out.After municipal wastewater is by sterilization pool sterilization processing, you can be discharged into environment water.Reach that sterilization effect is good, purify city
The effect of political affairs sewage.
The further setting of the present invention is：The polymeric adsorbent is in granular form, the Nano Silver-composite titania material
It is carried in polymeric adsorbent and surface.
By using above-mentioned technical proposal, polymeric adsorbent is that with the characteristics of absorption, the resin with porous three dimensional structure is inhaled
Attached dose.Nano Silver-composite titania material is supported on loose structure and surface inside polymeric adsorbent, increases Nano Silver-two
The contact area of titanium oxide composite material and municipal wastewater.
The further setting of the present invention is：Multiple rows of screen frame in the sterilization pool, institute are provided with the sterilization pool
Polymeric adsorbent is stated to be positioned in the screen frame.
By using above-mentioned technical proposal, polymeric adsorbent is placed in screen frame, is placed in sterilization pool.
The further setting of the present invention is：The screen frame side is articulated with the sterilization pool, is fixed with the screen frame
One end is located at the pull bar for being used to pull the screen frame to leave the sterilization pool after overturning outside the sterilization pool.
By using above-mentioned technical proposal, when needing to change the polymeric adsorbent in screen frame, pull bar is pulled, screen frame edge is hinged
Place is rotated, and is tilted out sterilization pool, is conveniently replaceable the polymeric adsorbent in screen frame.
The further setting of the present invention is：The Nano Silver-composite titania material preparation method is as follows, weighs 16
Alkyl Sanya base ammonium bromide is dissolved in deionized water, is added hydrazine hydrate, is added dropwise while using magnetic stirrer
Silver nitrate solution, until solution becomes rufous, is sequentially added after absolute ethyl alcohol, ammoniacal liquor, nano titanium dioxide powder, is continued
Stirring, obtains Nano Silver-composite titania material at 600 DEG C after calcination after drying process.
By using above-mentioned technical proposal, Nano Silver-composite titania material is prepared.
The further setting of the present invention is：Nano Silver-the composite titania material is carried on the polymeric adsorbent
Method is as follows, the Nano Silver-composite titania material is pulverized last, adds after being stirred in deionized water,
Polymeric adsorbent is added, after heat drying processing, obtains being loaded with the polymeric adsorbent of Nano Silver-composite titania material.
By using above-mentioned technical proposal, Nano Silver-composite titania material is supported in polymeric adsorbent.
The further setting of the present invention is：Step 5, secondary precipitation, the municipal administration after being purified in biological contact oxidation pond is dirty
Water is transported in tube settler, adds coagulant, stewing process 1-4 hours.
By using above-mentioned technical proposal, coagulant is added in municipal wastewater, the micelle material in municipal wastewater is sent out
It is raw to condense and flocculate and separate, coagulant is added in secondary precipitation, municipal wastewater touches absorption tree in sterilization pool
During fat, the coagulant in municipal wastewater can be adsorbed Resin Absorbent, reduce the influence to environment water after municipal wastewater discharge.
In summary, the invention has the advantages that：Using grid filtration municipal wastewater, remove in municipal wastewater
Solid impurity, is entered to municipal wastewater with regulating reservoir and is carried out disinfection after carrying out sewage purification, secondary precipitation after row buffering, preliminary sedimentation
Sterilization, by loading nano silvery-composite titania material in polymeric adsorbent, to municipal wastewater disinfection, sewage effluent,
Reach the bacterium killed in municipal wastewater, purification municipal wastewater, reduce pollution, the effect of environmental protection.
Brief description of the drawings
Fig. 1 is the step schematic flow sheet of embodiment 1；
Fig. 2 is the position relationship schematic diagram of the sterilization pool, screen frame, pull bar of embodiment 1.
In figure：1st, sterilization pool；2nd, screen frame；3rd, pull bar.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Specific embodiment is only explanation of the invention, and it is not limitation of the present invention, those skilled in the art
The modification without creative contribution can be made to the present embodiment as needed after this specification is read, but as long as in this hair
All protected in bright right by Patent Law.
Embodiment 1：A kind of municipal wastewater handling process, as shown in Fig. 1 to Fig. 2, including step 1, grid filtration, by municipal administration
Sewage transport is in grid maker, and grid maker selects swinging sewage grid maker, and municipal wastewater is filtered, municipal wastewater is understood
Interior solid impurity.
Step 2, regulating reservoir is buffered, and the municipal wastewater in grid maker is pumped into regulating reservoir with sewage.Step 3, just
Step precipitation, the municipal wastewater in regulating reservoir is transported in preliminary sedimentation tank, and puts into preliminary sedimentation tank lime, and precipitation process 2-5 is small
When.
Step 4, the municipal wastewater on preliminary sedimentation tank upper strata, is transported in biological contact oxidation pond by sewage purification with sewage pump,
Municipal wastewater is purified.Step 5, secondary precipitation, after the municipal wastewater in step 4 is purified, is connect biology with sewage pump
The municipal wastewater touched in oxidation pond is discharged into tube settler, coagulant is put into tube settler, coagulant is sulfuric acid
Iron.Municipal wastewater is stewing process 1-4 hours in tube settler.
Step 6, disinfection, the municipal wastewater after being handled in tube settler is transported in sterilization pool 1.Sterilization pool 1
Multiple rows of screen frame 2 is inside placed with, the upper end of screen frame 2 is provided with opening.Polymeric adsorbent is placed with screen frame 2, polymeric adsorbent is in granular form.
Inside polymeric adsorbent Nano Silver-composite titania material is loaded with surface.The side of screen frame 2 is hinged on the side wall of sterilization pool 1
On, the bottom of screen frame 2 is placed on the bottom wall of sterilization pool 1.Pull bar 3 is fixed with screen frame 2, one end of pull bar 3 is placed on the pond of sterilization pool 1
Side.When need change screen frame 2 in polymeric adsorbent when, pull pull bar 3 drive screen frame 2 rotated along hinged place, screen frame 2 overturn after from
Sterilization pool 1 is opened, outside sterilization pool 1.Polymeric adsorbent is taken out from the upper end open of screen frame 2, new polymeric adsorbent is added and enters
In screen frame 2.
The preparation method of Nano Silver-composite titania material is as follows：1g cetyls Sanya base ammonium bromide is weighed to be dissolved in
In 400ml deionized waters, 3ml concentration is added for 0.1mol/L hydrazine hydrate, using magnetic stirrer 5 minutes, then
0.05mol/L silver nitrate solution is added dropwise, until solution colour is changed into rufous from water white transparency, 50ml is sequentially added
Absolute ethyl alcohol and the ammoniacal liquor that 3ml mass concentrations are 25%, and 0.5g nano titanium dioxide powders, after stirring, heating is dry
Dry processing, then calcination obtains Nano Silver-composite titania material at 600 DEG C.
The method that Nano Silver-composite titania material is supported on polymeric adsorbent is as follows：Nano Silver-titanium dioxide is multiple
Condensation material grinding is added and stirred in deionized water in after powder, is placed into polymeric adsorbent, after heat drying processing, is obtained
It is loaded with the polymeric adsorbent of Nano Silver-composite titania material.Uviol lamp is additionally provided with sterilization pool 1, ultra violet lamp disappears
Polymeric adsorbent in malicious pond 1, the ultraviolet wavelength of uviol lamp transmitting is 275nm.
Step 7, sewage discharge, environment water is discharged into sewage pump by the municipal wastewater after being disinfected in sterilization pool 1
It is interior.
Comparative example 1：Municipal wastewater handling process, is do not have load to receive in polymeric adsorbent with the difference of embodiment 1
Uviol lamp is not provided with meter Yin-composite titania material, sterilization pool 1.
Comparative example 2：Municipal wastewater handling process, is with the difference of embodiment 1, do not loaded in polymeric adsorbent
Nano Silver-composite titania material.
Comparative example 2：Municipal wastewater handling process, is with the difference of embodiment 1, nanometer is loaded with polymeric adsorbent
Nano Silver-nano titanium oxide is carried on the method in polymeric adsorbent in silver, carrying method reference implementation example 1.
Comparative example 3：Municipal wastewater handling process, is with the difference of embodiment 1：Load nanometer two in polymeric adsorbent
Nano Silver-nano titanium oxide is carried on the method in polymeric adsorbent in titanium oxide, carrying method reference implementation example 1.
Municipal wastewater processing experiment：Municipal wastewater water sample is chosen, before processing water sample is detected, with reference to GB18918-
2002《Urban wastewater treatment firm pollutant emission standard》, detect COD, the excrement colibacillus group number in water sample.Water sample is divided into 4
Part, every part of 50ml is positioned in the beaker that capacity is 100ml.
Embodiment 1 is tested, and after taking 50mg Nano Silvers-titanium dichloride load in polymeric adsorbent, is added in 50ml water samples,
Stir, with ultra violet lamp, the ultraviolet wavelength of uviol lamp is 275nm, and intensity of illumination is 3250 μ W/cm2.Ultraviolet lamp
Apart from liquid level 30cm, light-receiving area is 38.5cm2.After processing 2 hours, COD, excrement colibacillus group number in detection water sample, in table 1
In list testing result.
Comparative example 1 is tested, and the polymeric adsorbent of the experiment moderate of Example 1 is put into 50ml water samples, is stirred, is handled
After 2 hours, COD, excrement colibacillus group number in detection water sample list testing result in table 1.
Comparative example 2 is tested, and the polymeric adsorbent of the experiment moderate of Example 1 is put into 50ml water samples, is stirred, with purple
Outer light irradiation, the ultraviolet wavelength of uviol lamp is 275nm, and intensity of illumination is 3250 μ W/cm2.Ultraviolet lamp apart from liquid level 30cm,
Light-receiving area is 38.5cm2.After processing 2 hours, COD, excrement colibacillus group number in detection water sample list detection knot in table 1
Really.
Comparative example 3 is tested, and is weighed the polymeric adsorbent for being loaded with nano titanium oxide in 50mg comparative examples 4, is added to
In 50ml water samples, stir, with ultra violet lamp, the ultraviolet wavelength of uviol lamp is 275nm, and intensity of illumination is 3250 μ W/
cm2.Ultraviolet lamp is apart from liquid level 30cm, and light-receiving area is 38.5cm2.After processing 2 hours, COD, excrement large intestine in detection water sample
Flora number, testing result is listed in table 1.
Comparative example 4 is tested, and is weighed the polymeric adsorbent for being loaded with Nano Silver in 50mg comparative examples 4, is added to 50ml water samples
In, stir, with ultra violet lamp, the ultraviolet wavelength of uviol lamp is 275nm, and intensity of illumination is 3250 μ W/cm2.It is ultraviolet
Line lamp is apart from liquid level 30cm, and light-receiving area is 38.5cm2.After processing 2 hours, COD, excrement colibacillus group number in detection water sample,
Testing result is listed in table 1.
Table 1
Claims (7)
1. a kind of municipal wastewater handling process, it is characterised in that comprise the following steps：
Step 1, grid filtration, by municipal wastewater conveying by grid maker, is filtered to municipal wastewater；
Step 2, regulating reservoir is buffered, and will be discharged into by the municipal wastewater of grid maker in regulating reservoir；
Step 3, preliminary sedimentation, the municipal wastewater in regulating reservoir is transported in preliminary sedimentation tank, precipitation process 2-5 hours；
Step 4, sewage purification, the municipal wastewater on preliminary sedimentation tank upper strata is transported in biological contact oxidation pond, purifies municipal wastewater；
Step 5, secondary precipitation, the municipal wastewater after being purified in biological contact oxidation pond is transported in tube settler, is handled
1-4 hours；
Step 6, disinfection, the municipal wastewater after being handled in tube settler is transported in sterilization pool (1), sterilization pool (1)
Inside it is placed with polymeric adsorbent, polymeric adsorbent and is loaded with Nano Silver-composite titania material, while with uviol lamp to sterilization pool
(1) irradiated in；
Step 7, sewage discharge, municipal sewage discharge is in environment water after disinfecting.
2. municipal wastewater handling process according to claim 1, it is characterised in that：The polymeric adsorbent is in granular form, institute
Nano Silver-composite titania material is stated to be carried in polymeric adsorbent and surface.
3. municipal wastewater handling process according to claim 2, it is characterised in that：It is provided with the sterilization pool (1) many
Rank in the screen frame (2) in the sterilization pool (1), the polymeric adsorbent is positioned in the screen frame (2).
4. municipal wastewater handling process according to claim 3, it is characterised in that：Screen frame (2) side is articulated with institute
State in sterilization pool (1), one end is fixed with the screen frame (2) to be used to pull the screen frame (2) to turn over outside positioned at the sterilization pool (1)
The pull bar (3) of the sterilization pool (1) is left after turning.
5. municipal wastewater handling process according to claim 1, it is characterised in that：Nano Silver-the titanium dioxide is combined
Material preparation method is as follows, weighs cetyl Sanya base ammonium bromide and is dissolved in deionized water, adds hydrazine hydrate, utilizes magnetic force
Silver nitrate solution is added dropwise while stirring in agitator, until solution becomes rufous, sequentially adds absolute ethyl alcohol, ammonia
After water, nano titanium dioxide powder, lasting stirring obtains at 600 DEG C Nano Silver-titanium dioxide multiple after calcination after drying process
Condensation material.
6. municipal wastewater handling process according to claim 5, it is characterised in that：Nano Silver-the titanium dioxide is combined
Material load is as follows in the method for the polymeric adsorbent, the Nano Silver-composite titania material is pulverized last, plus
Enter after being stirred in deionized water, add polymeric adsorbent, after heat drying processing, obtain being loaded with Nano Silver-titanium dioxide
The polymeric adsorbent of titanium composite material.
7. municipal wastewater handling process according to claim 1, it is characterised in that：Step 5, secondary precipitation, biology is connect
Touch the municipal wastewater after purifying in oxidation pond to be transported in tube settler, add coagulant, stewing process 1-4 hours.
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| CN201710277757.9A CN107098537B (en) | 2017-04-25 | 2017-04-25 | Municipal wastewater treatment process |
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| CN109455886A (en) * | 2018-12-28 | 2019-03-12 | 温州建源建设有限公司 | A kind of town road sewage water treatment method and processing system |
| CN111661975A (en) * | 2020-04-25 | 2020-09-15 | 河南省金德园林绿化工程有限公司 | Municipal administration sewage treatment system |
| CN114772783A (en) * | 2022-04-26 | 2022-07-22 | 无锡碧泓达环境科技有限公司 | Water ecological restoration system for industrial wastewater and application method thereof |
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Cited By (7)
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| CN107555725A (en) * | 2017-10-21 | 2018-01-09 | 浙江千尧环境工程有限公司 | A kind of sewage disposal of hospital method |
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| CN111661975A (en) * | 2020-04-25 | 2020-09-15 | 河南省金德园林绿化工程有限公司 | Municipal administration sewage treatment system |
| CN114772783A (en) * | 2022-04-26 | 2022-07-22 | 无锡碧泓达环境科技有限公司 | Water ecological restoration system for industrial wastewater and application method thereof |
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| CN107098537B (en) | 2019-12-03 |
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