CN108947132A - A kind of sanitary sewage and production waste water integral treatment method - Google Patents
A kind of sanitary sewage and production waste water integral treatment method Download PDFInfo
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- CN108947132A CN108947132A CN201810839871.0A CN201810839871A CN108947132A CN 108947132 A CN108947132 A CN 108947132A CN 201810839871 A CN201810839871 A CN 201810839871A CN 108947132 A CN108947132 A CN 108947132A
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- waste water
- production waste
- sanitary sewage
- treatment method
- sewage
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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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/52—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
- 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
- C02F1/70—Treatment of water, waste water, or sewage by reduction
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
-
- 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
- C02F3/30—Aerobic and anaerobic 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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
Technical field of sewage of the present invention, more particularly to a kind of sanitary sewage and production waste water integral treatment method, the sanitary sewage and production waste water integral treatment method that the present invention uses, it produces waste water and passes through air bearing, reduction reaction slot, neutralization reaction slot, after flocculation sedimentation tank, enter intermediate pool together with sanitary sewage, the biochemical treatment of the pond MBR is carried out again until reaching discharge standard, shorten the process of processing sewage, it is separated by solid-liquid separation efficient, the effect of water process is good, eliminate secondary sedimentation tank, greatly save the construction investment of biological treatment, occupied area is few, effectively reduce the cost of water process.
Description
Technical field
The present invention relates to technical field of sewage, and in particular to a kind of sanitary sewage and production waste water integrated treatment side
Method.
Background technique
Sanitary sewage is the waste water being discharged in resident's daily life, is mainly derived from residential architecture and public building, is such as lived
Between residence, organ, school, hospital, shop, public place and industry hygiene etc., pollutant contained by sanitary sewage is mainly
Organic matter and a large amount of pathogenic microorganisms.The mode of sanitary sewage disposal, which usually first puts into sewage, to be implemented to adjust in conditioning tank
Section, then moving on to the sewage with sludge makes sewage and sludge initial gross separation into preliminary sedimentation tank, thereafter will be by preliminary
The sewage by precipitating in sedimentation basin is put into aerobic tank to be implemented to decompose to the substance in sewage, makes the nuisance in sewage
Matter is separated, and is finally put into secondary sedimentation tank and is again carried out precipitating and completes to be discharged.To complete the processing of sanitary sewage.
For production enterprise, in the production waste water of discharge containing the heavy metals such as a large amount of chromium, mercury, zinc, barium, lead from
Son, wherein Cr6+Belong to severe toxicity, strong mutagenic matter, a small amount of human body of taking in will be poisoned, excessive Zn2+、Ba2+、Pb2+It also can be right
Human body causes greatly to injure, and is directly discharged into receiving water body if production waste water is unprocessed, will cause pole to receiving water body
Big pollution；Usual production enterprise not only has production waste water, while also having sanitary sewage, produces waste water and sanitary sewage
After mixing use traditional processing system and technique, poor processing effect, sewage after treatment can not still meet environmentally friendly row
Put standard.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of sanitary sewage and production waste water integral treatment method.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs:
A kind of sanitary sewage and production waste water integral treatment method, steps are as follows:
A, production waste water initially enters conditioning tank, and water quality, water of the conditioning tank mainly for the production of waste water guarantee subsequent place
The stable operation of reason, the production waste water after adjusting enter flotation tank removal oils and suspended matter；
B, the production waste water after air bearing is extracted to reduction reaction slot with water pump, and measures its Cr6+Content, to also
A certain proportion of FeSO is added inside former reactive tank4·7H2O also needs to add hydrochloric acid reduction life to guarantee going on smoothly for reaction
The pH value for producing waste water, in the range of making pH value be maintained at and be suitble to react；
C, production waste water is after reduction reaction, adds in NaOH progress into neutralization reaction slot, and to neutralization reaction slot
And reaction；
D, production waste water complete neutralization reaction after enter flocculation sedimentation tank, then add flocculant PAC (aluminium polychloride) with
PAM (anionic polyacrylamide) will produce the little particle sediment generated after waste water neutralizes and flocculate into bulky grain alumen ustum；
E, by flocculation sedimentation tank treated production waste water enter intermediate pool together with sanitary sewage after mixed,
It enters back into the pond MBR and is handled；
F, treated in the pond MBR, and sewage enters discharge bay, and is finally emitted into city planting ductwork by discharge bay.
Preferably, flotation tank uses steel CAF cavitation air flotation equipment, processing capacity 20m in the step b3/h。
Preferably, Cr in the step b6+And FeSO4·7H2The ratio that adds of O is 1:20.
Preferably, 3~4 are maintained at salt acid for adjusting pH value in the step b.
Preferably, blender is equipped with inside the reduction reaction slot and the neutralization reaction slot.
Preferably, the pond MBR divides aerobic tank, anoxic pond and ultrafiltration pond three lattice in the step e, membrane bio-reaction in ultrafiltration pond
Device uses organic tubular ultra-filtration membrane in 0.02 μm of aperture.
(3) beneficial effect
The sanitary sewage and production waste water integral treatment method that the present invention uses, production waste water are anti-by air bearing, reduction
After answering slot, neutralization reaction slot, flocculation sedimentation tank, intermediate pool is entered together with sanitary sewage, then to carry out the biochemical treatment of the pond MBR straight
To discharge standard is reached, the process of processing sewage is shortened, is separated by solid-liquid separation efficiently, the effect of water process is good, and it is secondary heavy to eliminate
Shallow lake pond, construction investment, the occupied area for greatling save biological treatment are few, effectively reduce the cost of water process.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
Needed for having in technical description；Attached drawing to be used is briefly described.It should be evident that the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is flow diagram of the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of creative work.
Embodiment
As shown in Figure 1, a kind of sanitary sewage and production waste water integral treatment method, steps are as follows:
A, production waste water initially enters conditioning tank, and water quality, water of the conditioning tank mainly for the production of waste water guarantee subsequent place
The stable operation of reason, the production waste water after adjusting enter flotation tank removal oils and suspended matter；
B, the production waste water after air bearing is extracted to reduction reaction slot with water pump, and measures its Cr6+Content, to also
A certain proportion of FeSO is added inside former reactive tank4·7H2O also needs to add hydrochloric acid reduction life to guarantee going on smoothly for reaction
The pH value for producing waste water, in the range of making pH value be maintained at and be suitble to react；
C, production waste water is after reduction reaction, adds in NaOH progress into neutralization reaction slot, and to neutralization reaction slot
And reaction；
D, production waste water complete neutralization reaction after enter flocculation sedimentation tank, then add flocculant PAC (aluminium polychloride) with
PAM (anionic polyacrylamide) will produce the little particle sediment generated after waste water neutralizes and flocculate into bulky grain alumen ustum；
E, by flocculation sedimentation tank treated production waste water enter intermediate pool together with sanitary sewage after mixed,
It enters back into the pond MBR and is handled；
F, treated in the pond MBR, and sewage enters discharge bay, and is finally emitted into city planting ductwork by discharge bay.
In step a the conditioning tank residence time for 24 hours, dischargeable capacity 168m3, available depth 4.00m, material is reinforced concrete
Soil, inner lining glass fiber reinforced plastic.
In step b, flotation tank uses steel CAF cavitation air flotation equipment, processing capacity 20m3/ h, quantity one, equipment
Long 3m, wide 1.2m, material are steel lining PE；Since material composition is complicated in production waste water, it is contemplated that Fe2+It may consume and restore
In other materials, and Cr6+The big actual conditions of variation range, Cr6+And FeSO4·7H2The ratio that adds of O is 1:20, hydrochloric acid
It adjusts pH value and is maintained at 3~4.
Reaction equation are as follows: CrO4 2-+3Fe2++8H+→Cr3++3Fe3++4H2O
Cr2O7 2-+6Fe2++14H+→2Cr3++6Fe3++7H2O
Neutralization reaction slot is mainly neutralization reaction in step c, and the NaOH added provides OH?Effect first is that making the pH of raw water
Value increases, second is that making most of heavy metal ion (including Cr in raw water3+、Pb2+、Zn2+、Ni2+、Cu2+Ion etc.) and OH?
It precipitates, production wastewater pH is maintained at 8~9.
PAC (aluminium polychloride) is a kind of highly effective inorganic high-molecular coagulant adopting in step d, it is between AlCl3With
Al(OH)3Between product, aluminium polychloride is adaptable to various water quality, especially aobvious for ultra's coagulating sedimentation effect
It writes, applicable pH range is relatively wide (range 5~9)；Flocculated alumen ustum forms fast, particle greatly and densification and weighs, and is easy to settle, can contract
The short sedimentation time；Delivery turbidity is low, and coloration is small；PAM (anionic polyacrylamide) is relatively thick for suspended particulate, concentration is high, grain
Subband positive electricity, the pH value of water are that neutral or alkalinity sewage and heavy metal containing wastewater treatment effect are preferable；In flocculation sedimentation tank, wadding
Solidifying agent occurs hydrolysis, builds bridge, absorption, winding effect, and the little particle sediment generated after raw water is neutralized flocculates into bulky grain alum
Flower, guarantees the SS of raw water and the removal of coloration.
MBR divides in pond three lattice of aerobic tank, anoxic pond and ultrafiltration pond to pass through the aerobic micro- of high activity in aerobic tank in step e
Biological effect removes the organic matter of bio-degradable, and me.mbrane bioreactor uses organic tubular type in 0.02 μm of aperture in ultrafiltration pond
Ultrafiltration membrane is realized and is separated by solid-liquid separation, me.mbrane bioreactor passes through super with membrane separation technique instead of the secondary settling tank of routine biochemistry technique
Filter membrane isolation of purified water and thallus, sludge reflux can make the sludge concentration in biochemical reactor reach 10~30g/l, by continuous
The microbial flora formed is tamed, also can gradually be degraded to the organic matter of difficult for biological degradation in sewage
Waste water is produced in step f and enters intermediate pool together with sanitary sewage after sedimentation basin is discharged, by being lifted into
Subsequent biological treatment facility.Intermediate pool design size is 4.0 × 3.5 × 4.0 (available depths).
To sum up, as a control group by traditional processing system and technique, useless using a kind of sanitary sewage of the present invention and production
Water integrated processing method compares the sewage after handled by control group and the embodiment of the present invention as experimental group.In phase
With under conditions of, obtains every achievement data and be as follows:
| CODcr | BOD5 | SS | NH3-N | |
| Control group | 300mg/l | 75mg/l | 28mg/l | 21mg/l |
| Embodiment | 43mg/l | 7mg/l | 4mg/l | 5mg/l |
As above-mentioned data it is found that the sewage quality after handled by the embodiment of the present invention requires to reach " regeneration of urban sewage
Utilize urban reclaimed water water standard " discharge standard specified in (GB/T18920-2002).
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (6)
1. a kind of sanitary sewage and production waste water integral treatment method, which is characterized in that steps are as follows:
A, production waste water initially enters conditioning tank, and water quality, water of the conditioning tank mainly for the production of waste water guarantee subsequent processing
Stable operation, the production waste water after adjusting enter flotation tank removal oils and suspended matter；
B, the production waste water after air bearing is extracted to reduction reaction slot with water pump, and measures its Cr6+Content, it is anti-to reduction
It answers and adds a certain proportion of FeSO inside slot4·7H2O, to guarantee going on smoothly for reaction, also needing to add hydrochloric acid, to reduce production useless
The pH value of water, in the range of making pH value be maintained at and be suitble to react；
C, production waste water is after reduction reaction, into neutralization reaction slot, and adds NaOH to neutralization reaction slot and neutralize instead
It answers；
D, production waste water enters flocculation sedimentation tank after completing neutralization reaction, then adds flocculant PAC (aluminium polychloride) and PAM
(anionic polyacrylamide) will produce the little particle sediment generated after waste water neutralizes and flocculate into bulky grain alumen ustum；
E, by flocculation sedimentation tank treated production waste water enter intermediate pool together with sanitary sewage after mixed, then into
Enter to the pond MBR and is handled；
F, treated in the pond MBR, and sewage enters discharge bay, and is finally emitted into city planting ductwork by discharge bay.
2. a kind of sanitary sewage as described in claim 1 and production waste water integral treatment method, which is characterized in that the step
Flotation tank uses steel CAF cavitation air flotation equipment, processing capacity 20m in rapid b3/h。
3. a kind of sanitary sewage as described in claim 1 and production waste water integral treatment method, which is characterized in that the step
Cr in rapid b6+And FeSO4·7H2The ratio that adds of O is 1:20.
4. a kind of sanitary sewage as described in claim 1 and production waste water integral treatment method, it is characterised in that: the step
3~4 are maintained at salt acid for adjusting pH value in rapid b.
5. a kind of sanitary sewage as described in claim 1 and production waste water integral treatment method, it is characterised in that: described to go back
Blender is equipped with inside former reactive tank and the neutralization reaction slot.
6. a kind of sanitary sewage as described in claim 1 and production waste water integral treatment method, it is characterised in that: the step
The pond MBR divides aerobic tank, anoxic pond and ultrafiltration pond three lattice in rapid e, me.mbrane bioreactor having using 0.02 μm of aperture in ultrafiltration pond
Machine tubular ultra-filtration membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810839871.0A CN108947132A (en) | 2018-07-27 | 2018-07-27 | A kind of sanitary sewage and production waste water integral treatment method |
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| CN201810839871.0A CN108947132A (en) | 2018-07-27 | 2018-07-27 | A kind of sanitary sewage and production waste water integral treatment method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020079029A (en) * | 2001-04-12 | 2002-10-19 | 한국과학기술연구원 | A zero-sludge -discharging membrane bioreactor(Z-MBR) activated sludge process |
| CN103332824A (en) * | 2012-12-27 | 2013-10-02 | 北京北方节能环保有限公司 | A composite treatment system and a treatment method for DNT production waste water |
| CN204151203U (en) * | 2014-09-29 | 2015-02-11 | 广西壮族自治区环境保护科学研究院 | A kind of dangerous waste disposal center Waste Water Treatment |
-
2018
- 2018-07-27 CN CN201810839871.0A patent/CN108947132A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020079029A (en) * | 2001-04-12 | 2002-10-19 | 한국과학기술연구원 | A zero-sludge -discharging membrane bioreactor(Z-MBR) activated sludge process |
| CN103332824A (en) * | 2012-12-27 | 2013-10-02 | 北京北方节能环保有限公司 | A composite treatment system and a treatment method for DNT production waste water |
| CN204151203U (en) * | 2014-09-29 | 2015-02-11 | 广西壮族自治区环境保护科学研究院 | A kind of dangerous waste disposal center Waste Water Treatment |
Non-Patent Citations (1)
| Title |
|---|
| 周振民: "《城市污水处理回用关键技术与示范推广》", 31 January 2015, 河南科学技术出版社 * |
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