CN107416918A - The method of separated sludge and small-sized desliming system from sanitary sewage - Google Patents
The method of separated sludge and small-sized desliming system from sanitary sewage Download PDFInfo
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- CN107416918A CN107416918A CN201710436955.5A CN201710436955A CN107416918A CN 107416918 A CN107416918 A CN 107416918A CN 201710436955 A CN201710436955 A CN 201710436955A CN 107416918 A CN107416918 A CN 107416918A
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- Prior art keywords
- sludge
- mud
- pond
- depositing reservoir
- collecting slot
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
-
- 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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention provides a kind of method of the separated sludge from sanitary sewage, including：Sewage is introduced into a depositing reservoir, forms upper strata clear water and lower floor's sludge；First mud-collecting slot is set among depositing reservoir bottom, accommodates the sludge of deep layer, upper strata clear water goes to collecting-tank by overflow and carries out subsequent treatment；Sludge in first mud-collecting slot is taken out toward sludge and stands pond, moisture therein is filtered out by side in the sludge stands pond；Bottom of pond portion is stood in sludge, and storage mud groove is set；Sludge in mud groove will be stored up to extract out, carry out subsequent treatment.The method of the present invention may be especially suitable for Small Urban, and thus the present invention also proposes a kind of mud-removing system, the system footprint area is small, desilts efficiency high.
Description
Technical field
The present invention relates to a kind of environment protection method and facility, and in particular to sewage water treatment method and system.
Background technology
The newly-built large quantities of municipal sewage plants in east China area in recent years, but northwestern is due to economic base
Weak urban infrastructure construction is slow, and the construction of urban drainage pipe network and sewage treatment facility seriously lags behind urban construction.
For example, Shaanxi Weihe basin, only Xi'an You Liangzuo sewage treatment plants are being run, other sewage treatment plants are still in construction, city
City's wastewater treatment rate is only 14%.Hexi Corridor in Gansu area is so far also without a municipal sewage plant.The Inner Mongol is certainly
The built sewage treatment plant in Zhi Qu Baotous and Huhehaote City, but treatment rate of domestic sewage is less than 30%.Qinghai Province is without one
The municipal sewage plant of normal operation, second largest city Golmud City is even without perfect urban drainage pipe network.Tie up in Xinjiang
I you the northern main cities of autonomous region have some municipal sewage plants, as the m3/d Hedong Sewage Disposal Plants of Urumchi 200,000 with
The m3/d of Dushanzi 30,000 B-grade sewage treatment plant.Therefore, these low developed areas need construction investment few, take up an area small sewage
Processing system.
In addition, in the same way, the densely covered villages and small towns of China star sieve, being distributed in the vast rural areas, these villages and small towns sewage produce
Amount is little, is not suitable for building large-scale sewage treatment plant, needs also exist for small investment, takes up an area small, quick sewage disposal and set
Apply.According to the characteristics of the sewage of villages and small towns and the national requirement to new village of promoting a conservation culture, suitable the Northwest villages and small towns are dirty
The technique of water process should possess stronger anti impulsion load ability, and removal efficiency is high；Simple process is flexible, stable, maintenance
Management is convenient；Capital expenditure saves, operating cost is low, energy-saving obvious.
The content of the invention
The purpose of the present invention is for a large amount of Small Urbans urgent need investments of China are small, treatment effeciency is high, occupation of land is small, operation fortune
The problem of row simple water processing establishment, and propose a kind of method and system that sludge is removed from sanitary sewage.
According to one aspect of the present invention, there is provided a kind of method of the separated sludge from sanitary sewage, it is characterised in that
Including：
Sewage is introduced into a depositing reservoir, forms upper strata clear water and lower floor's sludge；
- the first mud-collecting slot is set among depositing reservoir bottom, the sludge of deep layer is accommodated, upper strata clear water goes to collection by overflow
Pond carries out subsequent treatment；
- take out the sludge in first mud-collecting slot toward sludge standing pond, filtered in the sludge stands pond by side
Filter out moisture therein；
- set in sludge standing bottom of pond portion and store up mud groove；
- sludge extraction in mud groove will be stored up, carry out subsequent treatment.
Preferably, the depth of the depositing reservoir is more than the depth that the sludge stands pond, is at least partly embedded in underground.
Preferably, mud is inhaled from first mud-collecting slot with running suction dredge so that the height of sludge is all the time in depositing reservoir
Beyond the predetermined altitude of the first mud-collecting slot top surface one.
Preferably, at least both ends for pond being stood in sludge set baffle plate, and the filtering mouth of extension up and down is set in baffle plate, and water leads to
Filtering mouth is filtered in lautertuns, is filtered again in lautertuns.
Further, wherein, drainage hole, and the filter sand equipped with variable grain size are set in the bottom of lautertuns, often
Layer filter sand is separated by filter cloth.
Further, wherein, backwashing pump is set on the pipeline of the drainage hole, lautertuns is removed by backwashing
In the silt that filters out.
Further, wherein, the pipeline of described backwashing pump is with filtering trench bottom filter pipe by tee T valve phase
Connection, valve is controlled by central control system or manual operation, the backwashing pump other end are connected with a water purifying tank.
Further, wherein, when taking out the sludge of storage mud groove with slush pump, the mud in storage mud groove is kept not have slush pump
One default height.
Preferably, the bottom for pond being stood in the sludge provides slope, and the second mud-collecting slot is set in the relatively low side in slope,
The storage mud groove is in the centre of second mud-collecting slot.
Second aspect of the present invention further relates to a kind of small-sized sanitary sewage desliming system, including：One depositing reservoir, its one end are entered
Water, the other end are provided with downflow weir, and bottom is provided with the first mud-collecting slot；One running suction dredge, directly over the depositing reservoir, use
Sludge in extraction first mud-collecting slot；One sludge stands pond, both ends drainage, for standing from the depositing reservoir
Sludge, its at least two side wall are provided with filtering mouth, and bottom is provided with a storage mud groove；Two lautertuns, filtered for receiving
Make a slip of the tongue the water filtered out；One slush pump, extract sludge in the storage mud groove.
Preferably, the lautertuns stands pond with the sludge and is integrated, and a lautertuns is respectively set in the latter both sides, middle
Separated with baffle plate, the filter is arranged on the baffle plate.
Further, drainage hole, and the filter sand equipped with variable grain size, every layer of filter sand are set in the bottom of lautertuns
Separated by filter cloth, backwashing pump is set on the pipeline of the drainage hole, the silt of filtering mouth filter cloth is removed by backwashing.
By the method and system of the present invention, precipitation-filtering-spoil disposal can be realized simultaneously in sanitary sewage desliming process
Function, by depositing reservoir, depositing reservoir bottom the first mud-collecting slot and driving dredge pump, carry out first time mud-water separation, point
The water clay content very little gone out, the efficiency of subsequent biochemical processing are fine.Pond link is being stood, by being set in standing pond in sludge
Mouth is filtered, a pressure differential between sludge and lautertuns being present, (water level in lautertuns is far below the height for standing sludge in pond
Degree), the moisture in sludge faster can be sufficiently separated out.
Brief description of the drawings
Fig. 1 is the top view according to the viewable portion of the sanitary sewage desliming system of exemplary embodiments of the present invention；
Fig. 2 is sectional view of desliming system shown in Fig. 1 along line A-A；
Fig. 3 is sectional view of desliming system shown in Fig. 1 along line B-B.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer.Below by an exemplary embodiments to this hair
Bright technical scheme is clearly completely described, it is clear that and described embodiment is the part of the embodiment of the present invention, without
It is whole embodiments.Based on embodiments of the invention, one of ordinary skill in the art is not before creative work is made
The every other embodiment obtained is put, belongs to the scope of protection of the invention.
Reference picture 1-3, it shows the top view of the viewable portion of the sewage desliming system of the present embodiment.As shown in figure 1, should
It is a depositing reservoir 1 on the left of system, right side is that a sludge stands pond 5.At least wall of depositing reservoir 5 is provided with downflow weir 9, water
Initially enter depositing reservoir 1, the clear water on upper strata overflows from downflow weir 9 after standing, carries out next step biochemical treatment.Depositing reservoir lower floor is
The sludge deposited.A slope is presented in bottom of pond from both sides to center, and the sludge deposited is imported into depositing reservoir bottom
In first mud-collecting slot 8, first mud-collecting slot 8 extends on whole length directions of the bottom of depositing reservoir 1.It is additionally provided with depositing reservoir 1
One running suction dredge 10, track of the suction dredge along the first mud-collecting slot 8 are advanced, and muddy water elevator pump 11 therein collects mud by first
The sludge that sludge in groove 8 is extracted into right side is stood in pond 5.
Sludge stands pond 5 and is used to stand the sludge from the depositing reservoir, and two end wall is baffle plate 4, and baffle plate is provided with
The filtering mouth 3 of above-below direction extension, filtering mouth 3 use filter cloth, filtering of the water in sludge through filter cloth into the opposite side of baffle plate 4
In groove 13.Drainage hole 2, and the filter sand equipped with variable grain size are set in the bottom of lautertuns 13, and every layer of filter sand is by filter cloth
Separate.Backwashing pump is set on the pipeline of drainage hole, the silt of lautertuns is removed by backwashing.The pipeline and mistake of backwashing pump
Filter pocket bottom filter pipe is connected by tee T valve, and valve is controlled by central control system or manual operation, the backwashing pump other end
It is connected with a water purifying tank.So, at regular intervals, backwashing pump is activated.Filtering mouth gauze is beaten when backwash
Open, the muddy water rushed out (backwash flow can not be too big, in order to avoid filter sand is broken up) enter storage mud groove 7, warp by filtering mouth
Desliming system is delivered to by slush pump 12.
As illustrated in fig. 1 and 2, sludge stands the bottom certain slope of offer in pond 5, and the gradient is preferably 1/20, relatively low on slope
Side two the second mud-collecting slots 6 are set, the gradient of mud-collecting slot 6 is preferably also 1/20.Storage mud groove 7 is in the two second collection mud
The centre of groove 6.By this set, storage mud groove 7 stands the relative area very little occupied in pond in sludge, and sludge can be fast
Focus on fastly in storage mud groove 7.Slush pump 12 takes out mud from storage mud groove bottom, and the sludge of high concentration is taken out toward sludge concentration tank.
Preferably, depositing reservoir bottom of pond forms slope from high to low from both sides to centre, and the gradient is preferably 1/10,
First mud-collecting slot 8 is located at two slope intersections.Overfalling weir 9 is at least 2.5m relative to the height of bottom of pond.
Mud position height detecting device is provided with the bottom of running suction dredge 10, detection means provides the data of detection to one
Control system, when detecting that mud height reaches predetermined value, control system automatic start running suction dredge 10.One can be set
Individual high-value and a low-value, when attain to a high place value when, running suction dredge start inhale mud, when reaching low-value stop inhale
Mud.In the present invention, high-value and low-value are the highest and minimum altitude of the top surface of the first mud-collecting slot of distance 8, and low-value is preferably not
More than 1m, more preferably no more than 0.5m, preferably in 0.3m or so.The present invention can also carry out excellent to the size of the first mud-collecting slot
Choosing, its width is preferably 0.3-0.5m, and depth is preferably in 0.3-0.5 rice.
It can be adjusted as needed according to the size of the sanitary sewage desliming device of the present invention.It is but in general clear
Clear pond is to be not less than 20m × 30m, is preferably sized 30m × 40m or so.For day output 1000m3/ d situation, clarification
Pond is designed to 10m*1.5m*6m.
The present invention with reference to the slope design of depositing reservoir bottom surface, and is row by the selection of the size to the first mud-collecting slot
The suction mud setting high-value and low-value of car suction dredge, slowly enter the first mud-collecting slot in the mud layer of Xi Nishi depositing reservoirs lower floor,
Always across one layer of mud layer between first mud-collecting slot and water layer above, clear water layer is not disturbed.Moreover, the most bottom extracted out
The mud layer of layer has higher denseness.Meanwhile the operation of this batch (-type) both reduces energy consumption, be advantageous to muddy water in depositing reservoir again
Stratification.
In a preferred embodiment, the filter of the filtering mouth in baffle plate 4 is substantially always on, there is one in baffle plate
Individual automatic switch, when entering standing pond from depositing reservoir transfer sludge, the switch opens filter, keeps filter
The state of filter.The state that filter remains turned-off when backwash, backwash are continued on after completing, and filter cloth is born
Load can be rinsed close to during saturation with clear water.During filtering, stand pond sludge and filtered off moisture content when standing.This is opened automatically
The setting for closing the opening and closing time can be associated with the working time of foregoing backwashing pump, in backwash, barrier switch
Close, after the completion of backwash, barrier switch is opened, and remaining time keeps it turned on.The switch can be a cooperation
In filtering mouth opening, the sliding door that can be moved up and down, it is lifted up that opening can be opened under automatically controlled.
In a preferred embodiment, depositing reservoir 1 is embedded in underground.That is the depth of depositing reservoir 1 is quiet more than sludge
The depth in pond 5 is put, as shown in Figure 2.This design reduces area and taken, and can either keep water temperature, in order to avoid tied when standing in the winter time
Ice.Can also reduce construction cost, and run time it is easy to operate.
Slush pump is also placed in mud groove 7 is stored up, is handled so as to which sludge therein is transferred into next link.Can
To place a viscosity sensor or density sensor in storage mud groove bottom, to be reached in the viscosity or density that sense sludge
During to first predetermined value, control centre starts the slush pump, when viscosity or density are less than or equal to second predetermined value, in control
The heart closes the slush pump.
Alternately, a passage for having the slightly gradient can be connected in the storage mud groove bottom, be conveyed
To next link such as sludge concentration tank.One gate is installed at feeder connection, and a sensor, example are nearby installed
Such as viscosity sensor or density sensor, when the viscosity or density that sense sludge reach first predetermined value, control centre
The passage is opened, when viscosity or density are less than or equal to second predetermined value, controlling organization closes the passage.
Present invention additionally comprises the method using foregoing basic conception separated sludge from sanitary sewage, including following step
Suddenly：
(1) sewage is clarified in a depositing reservoir, forms upper strata clear water and lower floor's sludge；
(2) upper strata clear water goes to collecting-tank by overflow and carries out subsequent treatment, and lower floor's sludge, which is taken out toward sludge, stands pond；
(3) while standing, while filtering out moisture therein by side in the sludge stands pond；
(4) stand bottom of pond portion in sludge and storage mud groove is set, will store up sludge in mud groove with slush pump extracts out, is subsequently located
Reason.
In a preferred embodiment, in step (2), when shifting the mud layer of lower floor with slush pump, mud layer top surface is kept
Highly higher than the value of one reservation of slush pump, the predetermined value can be such as 1m, 0.5m, preferably not less than 0.3m.
In a preferred embodiment, in step (3), the water filtration in sludge is entered a lautertuns by the side filtering
In, one layer of filter sand and delivery port are set in filtering trench bottom, the water in lautertuns is filtered again.
By the method and system of the present invention, precipitation-filtering-spoil disposal can be realized simultaneously in sanitary sewage desliming process
Function, by depositing reservoir, depositing reservoir bottom the first mud-collecting slot and driving dredge pump, carry out first time mud-water separation, point
The water clay content very little gone out, the efficiency of subsequent biochemical processing are fine.Pond link is being stood, by being set in standing pond in sludge
Mouth is filtered, a pressure differential between sludge and lautertuns being present, (water level in lautertuns is far below the height for standing sludge in pond
Degree), the moisture in sludge faster can be sufficiently separated out.
The method and system of the present invention is mainly to realize the preliminary treatment to sanitary sewage, disposes the good mud of settling property
Sand, and timely processing avoid occurring the anaerobic reaction of activated sludge, and anaerobic reaction consumes the degradable substance in sewage, influences
The activity of activated sludge in subsequent biochemical pond, and anaerobic reaction can produce extremely toxic substance hydrogen sulfide.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (12)
- A kind of 1. method of the separated sludge from sanitary sewage, it is characterised in that including：Sewage is introduced into a depositing reservoir (1), forms upper strata clear water and lower floor's sludge；First mud-collecting slot (8) is set among depositing reservoir (1) bottom, accommodates the sludge of deep layer, upper strata clear water is gone to by overflow Collecting-tank carries out subsequent treatment；Sludge in first mud-collecting slot is taken out toward sludge and stands pond (5), is filtered and filtered by side in the sludge stands pond Go out water therein；Bottom of pond portion is stood in sludge, and storage mud groove (7) is set；Sludge in mud groove will be stored up to extract out, carry out subsequent treatment.
- 2. according to the method for claim 1, wherein, the depth of the depositing reservoir (1) is more than the sludge and stood pond (5) Depth, at least partly it is embedded in underground.
- 3. according to the method for claim 1, wherein, mud is inhaled from first mud-collecting slot with running suction dredge (10), is made The height for obtaining sludge in depositing reservoir exceeds the predetermined altitude of the first mud-collecting slot top surface one all the time.
- 4. according to the method for claim 1, wherein, at least both ends that pond is stood in sludge set baffle plate, are set in baffle plate The filtering mouth extended up and down, water are filtered in lautertuns (13) by filtering mouth, filtered again in lautertuns.
- Wherein, 5. drainage hole according to the method for claim 4, is set in the bottom of lautertuns (13), and equipped with difference The filter sand of granular size, every layer of filter sand are separated by filter cloth.
- 6. according to the method for claim 4, wherein, backwashing pump is set on the pipeline of the drainage hole, passes through recoil Remove the silt for going to filter mouth filter cloth.
- 7. according to the method for claim 6, wherein, described backwashing pump, its pipeline with filtering trench bottom filter pipe by Tee T valve is connected, and valve is controlled by central control system or manual operation, the backwashing pump other end are connected with a water purifying tank.
- 8. according to the method for claim 1, wherein, when taking out the sludge of storage mud groove (7) with slush pump (12), keep storage mud Mud in groove (7) did not had slush pump.
- 9. according to the method for claim 1, wherein, the sludge stand pond (5) bottom provide slope, slope compared with Low side sets the second mud-collecting slot (6), and the storage mud groove is in the centre of second mud-collecting slot (6).
- A kind of 10. small-sized sanitary sewage desliming system, it is characterised in that including：One depositing reservoir (1), its one end water inlet, the other end are provided with downflow weir (9), and bottom is provided with the first mud-collecting slot (8),One running suction dredge, directly over the depositing reservoir, for extracting the sludge in first mud-collecting slot (8),One sludge stands pond (5), and for standing the sludge from the depositing reservoir, its at least two side wall is provided with filtering Mouthful, bottom is provided with a storage mud groove (7)At least one lautertuns, for receiving the water made a slip of the tongue and filtered out by filtering,One slush pump, extract sludge in the storage mud groove (7).
- 11. sanitary sewage desliming system according to claim 10, wherein, the lautertuns stands pond with the sludge and is One, one is respectively set in the latter both sides, centre is separated with baffle plate, and the filtering mouth is arranged on the baffle plate.
- 12. sanitary sewage desliming system according to claim 11, wherein, water under being set in the bottom of lautertuns (13) Hole, and the filter sand equipped with variable grain size, every layer of filter sand are separated by filter cloth, and recoil is set on the pipeline of the drainage hole Pump is washed, the silt of filtering mouth filter cloth is removed by backwashing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710436955.5A CN107416918A (en) | 2017-06-09 | 2017-06-09 | The method of separated sludge and small-sized desliming system from sanitary sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710436955.5A CN107416918A (en) | 2017-06-09 | 2017-06-09 | The method of separated sludge and small-sized desliming system from sanitary sewage |
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| Publication Number | Publication Date |
|---|---|
| CN107416918A true CN107416918A (en) | 2017-12-01 |
Family
ID=60427973
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710436955.5A Pending CN107416918A (en) | 2017-06-09 | 2017-06-09 | The method of separated sludge and small-sized desliming system from sanitary sewage |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008060087A1 (en) * | 2006-11-14 | 2008-05-22 | Environmental Management Corporation | Apparatus for sensing precipitation density of sludge in waste water treatment tank and method therefor |
| CN101632017A (en) * | 2006-11-14 | 2010-01-20 | 环境管理公团 | Be used for the Apparatus for () and method therefor of precipitation density of the mud in the sensing purification tank for liquid waste |
| CN201952331U (en) * | 2011-01-27 | 2011-08-31 | 广州市环境保护工程设计院有限公司 | High-efficiency biomembrane sedimentation tank |
| CN203803239U (en) * | 2014-04-25 | 2014-09-03 | 湖北鄂钢附属企业总公司 | Sludge settling pond |
| CN204151215U (en) * | 2014-09-25 | 2015-02-11 | 李泽 | A kind for the treatment of unit of biological sludge |
| CN204918336U (en) * | 2015-07-17 | 2015-12-30 | 武汉水怡环保科技工程有限公司 | Device is dealt with to mud |
| CN205435087U (en) * | 2016-03-17 | 2016-08-10 | 昌邑海洋水业有限公司 | Trouble -free elevated type mud promotes return -flow system |
-
2017
- 2017-06-09 CN CN201710436955.5A patent/CN107416918A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008060087A1 (en) * | 2006-11-14 | 2008-05-22 | Environmental Management Corporation | Apparatus for sensing precipitation density of sludge in waste water treatment tank and method therefor |
| CN101632017A (en) * | 2006-11-14 | 2010-01-20 | 环境管理公团 | Be used for the Apparatus for () and method therefor of precipitation density of the mud in the sensing purification tank for liquid waste |
| CN201952331U (en) * | 2011-01-27 | 2011-08-31 | 广州市环境保护工程设计院有限公司 | High-efficiency biomembrane sedimentation tank |
| CN203803239U (en) * | 2014-04-25 | 2014-09-03 | 湖北鄂钢附属企业总公司 | Sludge settling pond |
| CN204151215U (en) * | 2014-09-25 | 2015-02-11 | 李泽 | A kind for the treatment of unit of biological sludge |
| CN204918336U (en) * | 2015-07-17 | 2015-12-30 | 武汉水怡环保科技工程有限公司 | Device is dealt with to mud |
| CN205435087U (en) * | 2016-03-17 | 2016-08-10 | 昌邑海洋水业有限公司 | Trouble -free elevated type mud promotes return -flow system |
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Application publication date: 20171201 |
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