CN105776522B - Strengthen the sewage disposal system and method for organic matter fast transfer - Google Patents
Strengthen the sewage disposal system and method for organic matter fast transfer Download PDFInfo
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- CN105776522B CN105776522B CN201610285093.6A CN201610285093A CN105776522B CN 105776522 B CN105776522 B CN 105776522B CN 201610285093 A CN201610285093 A CN 201610285093A CN 105776522 B CN105776522 B CN 105776522B
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- sludge
- pond
- adsorption
- sedimentation basin
- organic matter
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1215—Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The present invention provides a kind of sewage disposal system and method for strengthening organic matter fast transfer, which includes sludge pretreatment pond, adsorption-condensation pond, sedimentation basin and regenerated reactor.Sludge is placed in sludge pretreatment pond, generates larger shearing force by quickly stirring, exposure sludge flco internal layer has the type extracellular polymeric of combining closely of higher aggregation performance；Pretreated sludge enters adsorption-condensation pond, is sufficiently mixed with sewage in the case where mixing slowly, makes sludge quick adsorption dirt Organic substance in water and flock together again, forms sludge flco；Mixed liquor containing sludge flco enters sedimentation basin stop, and supernatant is flowed out through water outlet, and a precipitating sludge part is sent into regenerated reactor by sludge pump, and the material that can be used as recycling is discharged in excess sludge；The sludge of regenerated reactor carries out aerobic regeneration under aeration condition, and sludge pretreatment pond is pumped by sludge reflux.Compared with traditional adsorption-regeneration technique, the pollutant eliminating rate of absorption of present invention process can be improved 20%~30%, and process energy consumption can reduce by 30%~60%, and the excess sludge content of organic matter improves 10%~20%.
Description
Technical field
The present invention relates to a kind of sewage disposal systems and method for strengthening activated sludge absorption dirt Organic substance in water, belong to useless
Water process and field of environment protection.
Background technology
Although currently used sewage disposal process by activated sludge process can reach corresponding discharge standard, there are high energy
The problems such as consumption, high surplus sludge volume and greenhouse gas emission.Due to containing abundant organic matter, the in recent years money of sludge in sludge
Sourceization is utilized and is taken seriously.In general, the content of organic matter is higher in sludge, resourcebility utility value is higher.Activated sludge is to dirt
Organic matter in water has certain adsorption capacity, is based on this, there has been proposed by adsorption tank, sedimentation basin and sludge regenerated reactor three
The adsorption-regeneration technique of a unit composition, can quickly remove the particle and colloidal attitude object in sewage.But the technique emphasis is full
The requirement of sufficient treated sewage, the recycling without considering sludge, therefore complete the sludge after absorption enter in regenerated reactor into
Row reactivation with aeration all degrades the organic matter of absorption, to restore the adsorption capacity of sludge.
Early-stage study finds that microorganism extracellular polymeric (EPS) plays weight to organic matter in absorption effluent in activated sludge
The effect wanted, and the extracellular polymeric (TB-EPS) combined with cell tight has higher adsorption capacity.
The present invention by changing the method for hydraulic shear, for TB-EPS and dirty Organic substance in water come into full contact with and sludge
The rapid aggregation of flco provides condition, to enhance the adsorption capacity of sludge and improve the content of organic matter in sludge.
Invention content
An object of the present invention is to overcome the problems, such as that traditional adsorption-regeneration technique exists, and gives full play to TB-EPS to having
The high absorption capacity of machine object enhances sludge absorption performance, the potential of excess sludge resourcebility is improved, to provide a kind of reinforcing
The sewage disposal system of organic matter fast transfer.
It is a further object to provide a kind of sewage water treatment methods for strengthening organic matter fast transfer.
The technical solution that the present invention uses to achieve the goals above is as follows：
A kind of sewage disposal system for strengthening organic matter fast transfer, which includes sludge pretreatment pond, adsorption-condensation
Pond, sedimentation basin and regenerated reactor：
The outlet in sludge pretreatment pond is connected by pipeline with the import in adsorption-condensation pond；The top in adsorption-condensation pond is set
There are sewage inlet, the outlet in adsorption-condensation pond to be connected with the import of sedimentation basin by pipeline；The top of sedimentation basin is equipped with out
The mouth of a river, lower part are equipped with sludge outlet, and sludge outlet is connected by placed in series sludge pump with the import of regenerated reactor, before sludge pump
If excess sludge floss hole；The outlet of regenerated reactor is connected by placed in series sludge reflux pump with the import in sludge pretreatment pond
It is logical.
The sludge pretreatment pond is internally provided with flash mixer.
The adsorption-condensation pond is internally provided with slow stirrer.
Further, the regenerated reactor is internally provided with aerator.
Further, the agitating paddle width of the flash mixer is the 1/3-1/2 of sludge pretreatment pond diameter, is highly
5~8cm is highly arranged one every 5~20cm, and speed of agitator is 1000~1500rpm.
Further, the agitating paddle width of the slow stirrer is the 1/5~1/4 of adsorption-condensation pond diameter, is highly 5
~8cm is highly arranged one every 10~30cm, and speed of agitator is 60~120rpm.
Further, the dischargeable capacity of each workshop section of the processing system is：Sludge pretreatment pond:Adsorption-condensation pond:It is heavy
Shallow lake pond:Regenerated reactor=1:15~25:70~80:35~40.
A kind of sewage disposal system using above-mentioned reinforcing organic matter fast transfer to the processing method of sanitary sewage, including
Following steps：
Sludge is placed in sludge pretreatment pond, larger shearing force is generated by quickly stirring, in exposure sludge flco
Layer has the type extracellular polymeric of combining closely of higher aggregation performance；Pretreated sludge flows into adsorption-condensation pond through pipeline,
It in the case where mixing slowly, is sufficiently mixed with the sewage of entrance, makes sludge quick adsorption dirt Organic substance in water, and be gathered in one again
It rises, forms sludge flco；Mixed liquor containing sludge flco enters sedimentation basin by pipeline and stops, and obtained supernatant is through precipitation
The water outlet on pond top flows out, and the sludge of precipitation is by sludge outlet, and a part is sent into regenerated reactor by sludge pump, and rest part is dirty
Mud is rich in the higher content of organic matter, is discharged through excess sludge floss hole, can be used as the material of recycling；Into the dirt of regenerated reactor
Mud carries out aerobic regeneration under aeration condition, and the sludge after regeneration is pumped into sludge pretreatment pond by sludge reflux, and realization follows
Ring processing.
Further, the hydraulic detention time in the sludge pretreatment pond is 1min~2min, the adsorption-condensation pond
Interior hydraulic detention time is 20min~30min, and the hydraulic detention time in the sedimentation basin is 1.5~2h.
Further, the reflux ratio that the precipitating sludge of the sedimentation basin is pumped into regenerated reactor is 50%~150%.
Further, aerator is set in the regenerated reactor, and aeration flow is 0.05~0.1m3/ (hL), when aeration
Between be 2~3h.
Further, the organic loading of the processing system is 2.4~5.6kg BOD/kg MLSSd.
Further, the sludge age in the processing system is 5d~15d, and excess sludge can be converted according to sludge age
Discharge capacity.
Advantageous effect：
Compared with traditional adsorption-regeneration technique, processing system and treatment process of the present invention adsorb the pollutant of sewage
Removal rate can be improved 20%~30%, and process energy consumption can reduce by 30%~60%, and the excess sludge content of organic matter improves 10%
~20%.
Description of the drawings
Fig. 1：1 sewage disposal system process flow chart of the embodiment of the present invention；Wherein, A- sludge pretreatments pond, B- absorption are solidifying
Poly- pond, C- sedimentation basins, D- regenerated reactors.
Specific implementation mode
Below by specific embodiment, and in conjunction with attached drawing, it is further discussed below apparatus of the present invention and method.Except non-specifically
Illustrate, techniques not described means can be realized with mode known in those skilled in the art in embodiment.In addition, real
The scheme of applying is interpreted as illustrative, to be not intended to limit the present invention range, and the spirit and scope of the invention are only by claims
It is limited.To those skilled in the art, under the premise of without departing substantially from spirit and scope of the present invention, to these embodiments
In material component, the various modifications that carry out of dosage, size, shape, replacement, improvement also belong to protection scope of the present invention, and
And design parameter defined by the present invention should have admissible error range.
Embodiment 1：
Refering to what is shown in Fig. 1, in an exemplary embodiment of the present invention, a kind of sewage for strengthening organic matter fast transfer
Processing system, including sludge pretreatment pond, adsorption-condensation pond, sedimentation basin and regenerated reactor.The outlets sludge pretreatment pond A pass through pipeline
It is connected with the B imports of adsorption-condensation pond, the adsorption-condensation pond tops B are equipped with sewage inlet, and the outlets adsorption-condensation pond B pass through pipeline
It is connected with sedimentation basin C imports, the tops sedimentation basin C are equipped with water outlet, and lower part is equipped with sludge outlet, and sedimentation basin C sludge outlets are logical
Piping series connection sludge pump is connected with regenerated reactor D imports, and excess sludge floss hole is set before sludge pump, and the outlets regenerated reactor D pass through
Placed in series sludge reflux pump is connected with the A imports of sludge pretreatment pond.
Sludge is placed in the A of sludge pretreatment pond, larger shearing force is generated by quickly stirring, in exposure sludge flco
Layer has the type extracellular polymeric of combining closely of higher aggregation performance；Pretreated sludge flows into adsorption-condensation pond B through pipeline,
It in the case where mixing slowly, is sufficiently mixed with the sewage of entrance, makes sludge quick adsorption dirt Organic substance in water, and be gathered in one again
It rises, forms sludge flco；Mixed liquor containing sludge flco enters sedimentation basin C by pipeline and stops, and obtained supernatant is through heavy
The water outlet on the shallow lake pond tops C flows out, and for the sludge of precipitation by sludge outlet, a part is sent into regenerated reactor D, remaining part by sludge pump
Divide sludge to be rich in the higher content of organic matter, is discharged through excess sludge floss hole, can be used as the material of recycling；Into regenerated reactor
The sludge of D carries out aerobic regeneration under aeration condition, and the sludge after regeneration is pumped into sludge pretreatment pond A by sludge reflux,
Realize circular treatment.
Further, the dischargeable capacity of each workshop section of the processing system is sludge pretreatment pond A：0.34L；Adsorption-condensation
Pond B：6.72L, sedimentation basin C：24.00L regenerated reactor D：12.00L.
Further, the sludge pretreatment pond A is the open containers of a diameter 5cm, internal that agitating paddle 2 is arranged
It is a, it is divided into 10cm, agitating paddle width is the 1/2 of container diameter, is highly 5cm, rotating speed 1500rpm, hydraulic detention time
For 1min.
Further, the adsorption-condensation pond B is an open containers, is highly 3 with diameter ratio (H/D), sludge concentration
Control is in 1500mg/L or so, and internal that agitating paddle 3 is arranged, agitating paddle width is the 1/4 of adsorption-condensation pond diameter, is highly
5cm is highly arranged one, speed of agitator 100rpm, hydraulic detention time 30min every 20cm.
Further, sedimentation basin C is the container of the cone shape of opening, and sludge outlet is arranged in cone base, described heavy
Shallow lake pond is equipped with downflow weir in water outlet epistome；Hydraulic detention time is 2h.
Further, regenerated reactor D is an open containers, 3 is highly taken with diameter ratio (H/D), internal setting aeration dress
It sets, aeration flow is 0.05m3/ (hL), aeration time 2h.
Further, it intakes as sanitary sewage (COD=536~640mg/L, BOD=401~512mg/L), flow is
160L/d, organic loading are~3.0kg BOD/ (kg MLSSd), and reflux ratio 100%, recovery time 2h, sludge age is
10d。
After 2 months stable, COD removal rates are 80%~85%, with the absorption under identical service condition again
The COD removal rates of raw technique are compared, and improve 20%~30%；Energy consumption level is 0.10-0.15kWh/m3, with identical service condition
Under adsorpting regenerating process, reduce by 30%~60%；The excess sludge content of organic matter (VS/TS) is 0.6~0.8, with identical fortune
Adsorpting regenerating process under the conditions of row is compared, and improves 10%~20%.
Participate in the adsorption-regeneration Process operating parameters of comparison.Using《Code for design of outdoor sewerage engineering》(GB50014—2006)
The regulation of adsorption-regeneration technique.Process water 160L/d, organic loading are~3.0kg BOD/ (kg MLSSd).It inhales
Attached section of hydraulic detention time 30min, regenerator section hydraulic detention time 4h, sludge age 15d, regenerator section are blown by air pump and are aerated,
Aeration quantity is controlled according to DO concentration with air flow meter；Secondary settling tank is equipped with mechanical agitator.When stable operation, sludge concentration is about
3000mg/L, return sludge ratio 100%.
Claims (9)
1. a kind of sewage disposal system for strengthening organic matter fast transfer, which is characterized in that the system comprises sludge pretreatments
Pond, adsorption-condensation pond, sedimentation basin and regenerated reactor；
The outlet in sludge pretreatment pond is connected by pipeline with the import in adsorption-condensation pond；The top in adsorption-condensation pond is equipped with dirt
The outlet of water water inlet, adsorption-condensation pond is connected by pipeline with the import of sedimentation basin；The top of sedimentation basin is equipped with water outlet,
Lower part is equipped with sludge outlet, and sludge outlet is connected with the import of regenerated reactor by placed in series sludge pump, is set before sludge pump surplus
Remaining mud discharging mouth；The outlet of regenerated reactor is connected by placed in series sludge reflux pump with the import in sludge pretreatment pond；Institute
That states sludge pretreatment pond is internally provided with flash mixer；The agitating paddle width of the flash mixer is sludge pretreatment pond
The 1/3-1/2 of diameter is highly 5~8cm, is highly arranged one every 5~20cm, speed of agitator is 1000~1500rpm；
The adsorption-condensation pond is internally provided with slow stirrer.
2. a kind of sewage disposal system for strengthening organic matter fast transfer as described in claim 1, which is characterized in that described slow
The agitating paddle width of fast blender is the 1/5~1/4 of adsorption-condensation pond diameter, is highly 5~8cm, highly every 10~30cm
Setting one, speed of agitator are 60~120rpm.
3. a kind of sewage disposal system for strengthening organic matter fast transfer as described in claim 1, which is characterized in that it is described again
Raw pond is internally provided with aerator.
4. a kind of sewage disposal system for strengthening organic matter fast transfer as described in claim 1, which is characterized in that the place
The dischargeable capacity of each workshop section of reason system is：Sludge pretreatment pond:Adsorption-condensation pond:Sedimentation basin:Regenerated reactor=1:15~25:70
~80:35~40.
5. the processing using any sewage disposal systems for strengthening organic matter fast transfer of claim 1-4 to sanitary sewage
Method, which is characterized in that include the following steps：
Sludge is placed in sludge pretreatment pond, larger shearing force is generated by quickly stirring, exposure sludge flco internal layer tool
There is the type extracellular polymeric of combining closely of higher aggregation performance；Pretreated sludge flows into adsorption-condensation pond through pipeline, slow
Under speed stirring, it is sufficiently mixed with the sewage of entrance, makes sludge quick adsorption dirt Organic substance in water, and flock together again, shape
At sludge flco；Mixed liquor containing sludge flco enters sedimentation basin by pipeline and stops, and obtained supernatant is through on sedimentation basin
The water outlet in portion flows out, and the sludge of precipitation is by sludge outlet, and a part is sent into regenerated reactor by sludge pump, and rest part sludge is rich
Containing the higher content of organic matter, it is discharged through excess sludge floss hole, the material as recycling；Sludge into regenerated reactor is exposing
Aerobic regeneration is carried out under the conditions of gas, the sludge after regeneration is pumped into sludge pretreatment pond by sludge reflux, realizes circular treatment.
6. processing method as claimed in claim 5, which is characterized in that the hydraulic detention time in sludge pretreatment pond is 1min
~2min；Hydraulic detention time in the adsorption-condensation pond is 20min~30min；When hydraulic retention in the sedimentation basin
Between be 1.5~2h.
7. processing method as claimed in claim 5, which is characterized in that the precipitating sludge of the sedimentation basin is pumped into returning for regenerated reactor
Stream is than being 50%~150%.
8. processing method as claimed in claim 5, which is characterized in that the organic loading of the processing system is 2.4~5.6kg
BOD/kg MLSS·d。
9. processing method as claimed in claim 5, which is characterized in that the sludge age in the processing system is 5d~15d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610285093.6A CN105776522B (en) | 2016-04-29 | 2016-04-29 | Strengthen the sewage disposal system and method for organic matter fast transfer |
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|---|---|---|---|
| CN201610285093.6A CN105776522B (en) | 2016-04-29 | 2016-04-29 | Strengthen the sewage disposal system and method for organic matter fast transfer |
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| Publication Number | Publication Date |
|---|---|
| CN105776522A CN105776522A (en) | 2016-07-20 |
| CN105776522B true CN105776522B (en) | 2018-10-30 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010062964A (en) * | 1999-12-21 | 2001-07-09 | 안복현 | Process of Adsorption Treatment of Non-biodegradable Materials Using Waste Actioated Sludge |
| CN101704619A (en) * | 2009-11-30 | 2010-05-12 | 辽宁石油化工大学 | Process for treating and recycling city sewage water |
| CN102079570A (en) * | 2010-12-22 | 2011-06-01 | 南京中电联环保股份有限公司 | Extracellular polymeric substance (EPS) resolution method |
| CN105000766A (en) * | 2015-08-12 | 2015-10-28 | 广东石油化工学院 | Cleaner production method for increasing nitrogen and phosphorus recovery rate of residual activated sludge |
-
2016
- 2016-04-29 CN CN201610285093.6A patent/CN105776522B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010062964A (en) * | 1999-12-21 | 2001-07-09 | 안복현 | Process of Adsorption Treatment of Non-biodegradable Materials Using Waste Actioated Sludge |
| CN101704619A (en) * | 2009-11-30 | 2010-05-12 | 辽宁石油化工大学 | Process for treating and recycling city sewage water |
| CN102079570A (en) * | 2010-12-22 | 2011-06-01 | 南京中电联环保股份有限公司 | Extracellular polymeric substance (EPS) resolution method |
| CN105000766A (en) * | 2015-08-12 | 2015-10-28 | 广东石油化工学院 | Cleaner production method for increasing nitrogen and phosphorus recovery rate of residual activated sludge |
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| CN105776522A (en) | 2016-07-20 |
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