CN109399793A - A kind of precipitating filter back-flush reinforcing mud-water separation integrated water treatment equipment - Google Patents
A kind of precipitating filter back-flush reinforcing mud-water separation integrated water treatment equipment Download PDFInfo
- Publication number
- CN109399793A CN109399793A CN201811549573.4A CN201811549573A CN109399793A CN 109399793 A CN109399793 A CN 109399793A CN 201811549573 A CN201811549573 A CN 201811549573A CN 109399793 A CN109399793 A CN 109399793A
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- China
- Prior art keywords
- anaerobic pond
- sedimentation
- mud
- air lift
- filtration ditch
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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.)
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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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- 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
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
Abstract
The invention discloses a kind of precipitating filter back-flush to strengthen mud-water separation integrated water treatment equipment, it is characterised in that: including anaerobic pond, mud return line, aerobic tank, blower, shut-off valve, air lift air hose, sedimentation and filtration ditch, filter layer, air lift sludge pipe, aeration air hose and aerator；The anaerobic pond is equipped with water inlet；The aerobic tank is connected to anaerobic pond；The aerator is set in the aerobic tank, and shut-off valve is arranged on the external aeration air hose of aerator and the aeration air hose；Bottom is connected to the anaerobic pond in the sedimentation and filtration ditch, and middle part is arranged in the sedimentation and filtration ditch in the filter layer；The air lift sludge pipe in the mud return line and the anaerobic pond by being connected to；The blower is connect by the air lift air hose with the air lift sludge pipe.Precipitating, filtering, backwash reinforcing and mud-water separation etc. can be achieved in the present invention, while having many advantages, such as that small shape, construction cost and operating cost are supported.
Description
Technical field
The invention belongs to industrial wastewater and sanitary sewage disposal field, specifically a kind of precipitating filter back-flush strengthens muddy water
Isolation integral water treatment facilities.
Background technique
With the raising of environmental requirement, it is desirable that the life generated to rural area, residential area, small-sized manufacturing enterprise and production waste water
It is handled, the life and production waste water water generated due to these rural areas, residential area and small-sized manufacturing enterprise is smaller and manages
It is horizontal lower, it is not suitable for building sewage relatively loosely and waste water treatment plant or treating stations in the form of civil engineering.And current
Sewage or waste water processing equipment has much room for improvement in following several respects:
The first, low cost requires, and reduces the volume, construction cost and operating cost of equipment, and equipment cannot meet very well at present；
Second, it is desirable that mud-water separation effect can be improved, while filter layer being required to be used for a long time, service life requirement, and set at present
It is standby to meet very well；
Third, miniaturization need, and the pool capacity of water treatment facilities is smaller, but the residence time there are biochemistry pool water outlet in heavy pond
It is shorter, cause the effect of mud-water separation in heavy pond that cannot be effectively ensured, and equipment cannot meet very well at present.
Summary of the invention
In view of above-mentioned one or more defects exist in the prior art, the present invention provides a kind of precipitating filter back-flush
Strengthen mud-water separation integrated water treatment equipment.
To achieve the above object, the present invention provides a kind of precipitating filter back-flush to strengthen the processing of mud-water separation integrated water
Equipment, it is characterised in that: including anaerobic pond (2), mud return line (3), aerobic tank (4), blower (5), shut-off valve (6), air lift
Air hose (7), sedimentation and filtration ditch (8), filter layer (9), air lift sludge pipe (11), aeration air hose (12), aerator (13)；
The anaerobic pond (2) is equipped with water inlet (1) and sewage to be processed and enters the anaerobic pond from the water inlet (1)
(2) in；
The aerobic tank (4) is connected to the anaerobic pond (2), and treated in the anaerobic pond (2), and that sewage can enter is described good
In oxygen pond (4)；
The blower (5) is connect by the aeration air hose (12) with the aerator (13), the aeration air hose
(12) shut-off valve (6) are set on, the aerator (13) is used for the aerobic tank (4) interior aeration aerating；
The interior bottom of the sedimentation and filtration ditch (8) is connected to the anaerobic pond (2), and filter layer (9) setting was precipitated described
Middle part in filter tank (8), the sedimentation and filtration ditch (8) is equipped with clear water discharge outlet (10) and the clear water discharge outlet (10) is positioned at described
Above filter layer (9)；
Described air lift sludge pipe (11) one end is connected to the sedimentation and filtration ditch (8) interior bottom, and the air lift sludge pipe (11) is another
One end in the mud return line (3) and the anaerobic pond (2) by being connected to；
The blower (5) is also connect with the air lift sludge pipe (11) by the air lift air hose (7) and is used to described to sink
Shallow lake filtering ponds (8) interior base sludge successively flows back into the anaerobic pond (2) through air lift sludge pipe (11) and mud return line (3)
It is interior；
The anaerobic pond (2) is equipped with mud discharging mouth (14).
Using the above scheme, the course of work and characteristic analysis are as follows:
In sewage treatment, firstly, sewage (or waste water) to be processed enters in anaerobic pond (2) from water inlet (1), in anaerobic pond
(2) anaerobic organism reaction occurs in, the main function of anaerobic organism reaction includes: that insoluble organic matter is become soluble organic
The organic matter of bio-refractory is become the organic matter of bio-degradable, organic nitrogen is become ammonia nitrogen by object；And the anaerobic pond (2)
Interior excessive sludge can be discharged from the mud discharging mouth (14)；Secondly, after processing reaction stays for some time in the anaerobic pond (2)
Sewage enters in the aerobic tank (4) and aerobe reaction occurs, and the main function of aerobe reaction includes: consumption water
In organic matter, reduce COD (COD)；Ammonia nitrogen is transformed into nitrate nitrogen, part nitrate nitrogen is by the denitrifying bacterium in biomembrane
It is converted to nitrogen and realizes sewage water denitrification；Phosphate conversion in sewage is biological sludge by polyP bacteria, realizes sewage dephosphorization；And detest
Aerobic state in oxygen pond (2) is controlled by blower (5), aeration air hose (12), aerator (13) and shut-off valve (6), should
The pressure-air that blower (5) provides is delivered to aerator (13) through being aerated air hose (12), and air is through aerator (13)
It forms micro-bubble to enter in the aerobic tank (4) interior water, and then realizes to the aeration and oxygenation for sewage in aerobic tank (4)；Then,
Sewage enters sedimentation and filtration ditch (8) interior bottom after reaction stays for some time in aerobic tank (4), and in sedimentation and filtration ditch (8)
Sludge in sewage is deposited separation in sedimentation and filtration ditch (8) interior bottom, and partially the sludge of precipitation and separation does not pass through filtering
Layer (9) is isolated by filtration, and the clear water obtained after filtering precipitates filtering from clear water discharge outlet (10) discharge on sedimentation and filtration ditch
The sludge of pond (8) interior bottom is realized by blower (5) gas stripping by the sedimentation and filtration ditch (8) interior base sludge
Successively the anaerobic pond (2) is flowed back into through air lift sludge pipe (11) and mud return line (3) to flow back into anaerobic pond (2).
In addition, and when the present apparatus when sedimentation and filtration ditch (8) run a period of time after, the filter layer (9) is by sludge blockage
Duct is filtered, filtration resistance becomes larger, needs to backwash filter layer.Then filter layer (9) can be backwashed.
And in the present apparatus when carrying out backwash work to filter layer (9), first close the cut-off of (12) on aeration air hose
Valve (6), aerobic tank (4) stop aeration, since shut-off valve (6) are closed, enter the air meeting of aeration air hose (12) originally
It enters in the air lift air hose (7), and increases air lift sludge pipe (11) to the water and mud of sedimentation and filtration ditch (8) interior bottom
Pumping velocity so that negative pressure is formed on the interior bottom of sedimentation and filtration ditch (8), in sedimentation and filtration ditch (8), the clear water of top is from top to bottom
Filter layer (9) are flowed fast through, and the sludge in filter layer (9) enters sedimentation and filtration ditch (8) interior bottom with flushing water stream, finally leads to
It crosses air lift spoil disposal and fully enters anaerobic pond.When the clear water stream of top in sedimentation and filtration ditch (8) is complete, open shut-off valve (6), it should
It is aerated air hose (12) to open, which operates normally, and the suction capactity of the air lift sludge pipe (11) weakens, should
Filter layer (9) backwash terminates and is restored to normality work.
Further, microbe stuffing (15) are provided in the aerobic tank (4).Microorganism is attached to microbe stuffing
(15) on, sewage is during flowing through microbe stuffing (15), by the absorption of organic matter and in the microbe stuffing
(15) the effects of inside spreads and realizes biological oxidation, decomposes pollutant.Preferably, the microbe stuffing (15) is with poly-
Based on propylene high molecular polymer, and dose such as hydrophobicity, hydrophily, anti-flammability, heat resistance, frost resistance, ageing resistance not
Same auxiliary agent forms the holey overall structure type filler by the mutual fusion molding of strand after heating melting, can significantly improve life
Object amount, and obtain good COD removal effect.
Further, the interior bottom of the sedimentation and filtration ditch (8) is equipped with back taper storage bucket (16).
Further, pass through training wall between the interior bottom of sedimentation and filtration ditch (8) and the anaerobic pond (2) internal upper part
(17) it is connected to.
Further, the aerator (13) has multiple.
Beneficial effects of the present invention:
First, present device can realize that precipitating, filtering, mud-water separation integration, can be significantly to sewage and sewage treatment equipment
The separative efficiency of sludge and water is improved, while improving the water quality of water outlet, reduces the volume of sedimentation basin, is reduced outside equipment
Shape；
The second, present device can be realized rationally using air lift sludge pipe and be backwashed to the filter layer in sedimentation and filtration ditch, be not necessarily to
Special back-purge system is set, the construction cost and operating cost of water treatment facilities can be reduced.
Mud-water separation effect can be improved in third, the present invention, while filter layer can be used for a long time, and can greatly prolong making for equipment
With the service life, reducing maintenance times simultaneously reduces maintenance cost, conducive to the life generated in rural area, residential area, small-sized manufacturing enterprise and
Production waste water is expanded extensively when being handled.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the present invention in normality sewage treatment.
Fig. 2 is structural schematic diagram of the present invention in backwash filter layer.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples:
Embodiment: referring to Fig. 1, a kind of precipitating filter back-flush reinforcing mud-water separation integrated water treatment equipment comprising anaerobism
Pond 2, mud return line 3, aerobic tank 4, blower 5, shut-off valve 6, air lift air hose 7, sedimentation and filtration ditch 8, filter layer 9, air lift row
Mud pipe 11, aeration air hose 12 and aerator 13.
The anaerobic pond 2 is equipped with water inlet 1 and sewage to be processed enters in the anaerobic pond 2 from the water inlet 1.
Preferably, which is set to 2 top of anaerobic pond.
The anaerobic pond 2 is equipped with mud discharging mouth 14.
Preferably, which is set to 2 bottom of anaerobic pond.
It is connected between the aerobic tank 4 and the anaerobic pond 2 by intercommunicating pore 2-4, it is dirty that treated in the anaerobic pond 2
Water can enter in the aerobic tank 4；
The blower 5 is connect by the aeration air hose 12 with the aerator 13, is arranged on the aeration air hose 12
Shut-off valve 6, the aerator 13 are used for aeration aerating in the aerobic tank 4；
Bottom is connected to the anaerobic pond 2 in the sedimentation and filtration ditch 8.
Preferably, it is connected between bottom and 2 internal upper part of anaerobic pond by training wall 17 in the sedimentation and filtration ditch 8.
Middle part is arranged in the sedimentation and filtration ditch 8 in the filter layer 9, and 8 top of sedimentation and filtration ditch is arranged equipped with clear water
The mouth of a river 10 and the clear water discharge outlet 10 are located at 9 top of filter layer.
Described 11 one end of air lift sludge pipe is connected to bottom in the sedimentation and filtration ditch 8, and the air lift sludge pipe 11 is another
End in the mud return line 3 and the anaerobic pond 2 by being connected to；
The blower 5 is also connect with the air lift sludge pipe 11 by the air lift air hose 7 and is used to filter the precipitating
Base sludge successively flows back into the anaerobic pond 2 through air lift sludge pipe 11 and mud return line 3 in pond 8；
Further, microbe stuffing 15 is provided in the aerobic tank 4.Microorganism is attached on microbe stuffing 15, sewage
During flowing through microbe stuffing 15, passes through the absorption of organic matter and spread inside the microbe stuffing 15 and realized
The effects of biological oxidation, decomposes pollutant.Preferably, which is with polypropylene high molecular polymer
It is main, and the different auxiliary agents of such as hydrophobicity, hydrophily, anti-flammability, heat resistance, frost resistance, ageing resistance are dosed, shape after heating melting
At the holey overall structure type filler by the mutual fusion molding of strand, biomass can be significantly improved, and obtain good COD
Removal effect.
Further, bottom is equipped with back taper and stores bucket 16 in the sedimentation and filtration ditch 8.
Further, the aerator 13 has multiple.
Referring to Fig. 1, in normality sewage treatment, its working principles are as follows:
First, sewage or waste water to be processed enters in anaerobic pond 2 from water inlet 1, and it is anti-that anaerobic organism occurs in anaerobic pond 2
It answers, the main function of anaerobic organism reaction includes: that insoluble organic matter is become dissolved organic matter, having bio-refractory
Machine object becomes the organic matter of bio-degradable, organic nitrogen is become ammonia nitrogen；And sludge excessive in the anaerobic pond 2 can be from the row
Mud mouth 14 is discharged；
Second, the sewage after the interior processing reaction of the anaerobic pond 2 stays for some time enters in the aerobic tank 4 and aerobic life occurs
Object reaction, and the main function of aerobe reaction includes: the organic matter consumed in water, reduces COD COD；By ammonia nitrogen
It is transformed into nitrate nitrogen, part nitrate nitrogen is converted to nitrogen by the denitrifying bacterium in biomembrane and realizes sewage water denitrification；PolyP bacteria will be in sewage
Phosphate conversion be biological sludge, realize sewage dephosphorization；And the aerobic state in anaerobic pond 2 is by blower 5, aeration air hose
12,6 job controls of aerator 13 and shut-off valve, the pressure-air which provides are delivered to exposure through being aerated air hose 12
Device of air 13, and air forms micro-bubble through aerator 13 and enters in the aerobic tank 4 in water, and then realizes to aerobic tank
Aeration and oxygenation for sewage in 4；
Third, sewage reacts in aerobic tank 4 stay for some time after enter bottom in sedimentation and filtration ditch 8, and sedimentation and filtration ditch 8
Sludge in interior sewage is deposited separation in bottom in sedimentation and filtration ditch 8, and partially the sludge of precipitation and separation does not pass through filtering
Layer 9 is isolated by filtration, and the clear water obtained after filtering is discharged from the clear water discharge outlet 10 on sedimentation and filtration ditch, and sedimentation and filtration ditch 8
The sludge of interior bottom is realized base sludge in the sedimentation and filtration ditch 8 by 5 gas stripping of blower successively through air lift
Sludge pipe 11 and mud return line 3 flow back into the anaerobic pond 2 and flow back into anaerobic pond 2.
In addition, and when the present apparatus when sedimentation and filtration ditch 8 run a period of time after, which is filtered by sludge blockage
Duct, filtration resistance become larger, and need to backwash filter layer.
Referring to fig. 2, the present invention is when backwashing processing to filter layer 9, its working principles are as follows: first closing aeration air hose
Upper 12 shut-off valve 6, the aerobic tank 4 stop aeration, since shut-off valve 6 is closed, enter the sky of the aeration air hose 12 originally
Gas can enter in the air lift air hose 7, and increase air lift sludge pipe 11 to the water of bottom in sedimentation and filtration ditch 8 and mud
Pumping velocity, so that negative pressure is formed on bottom in sedimentation and filtration ditch 8, the clear water of top quickly flows from top to bottom in sedimentation and filtration ditch 8
Filter layer 9 is crossed, and the sludge in filter layer 9 enters bottom in sedimentation and filtration ditch 8 with flushing water stream, finally by air lift spoil disposal
Fully enter anaerobic pond.When the clear water stream of top in sedimentation and filtration ditch 8 is complete, shut-off valve 6 is opened, which beats
Open, which operates normally, and the suction capactity of the air lift sludge pipe 11 weakens, the filter layer 9 backwash terminate and
It is restored to normality work.Therefore it can realize to start when the filtration resistance of filter layer 9 reaches preset value and recoil to filter layer 9
It washes.
In addition, in the present invention when backwashing processing to filter layer 9, leading between the aerobic tank 4 and sedimentation and filtration ditch 8
The modes such as sewage are not added in the closing of stream wall 17 or the anaerobic pond 2 and the closing of 4 connectivity part of aerobic tank or anaerobic pond 2.In this way
Water level can reduce or keep low level in the aerobic tank 4, and the water in the aerobic tank 4 cannot enter in sedimentation and filtration ditch 8, because
This does not have new sludge and enters in the sedimentation and filtration ditch 8, and then can realize the sludge of bottom in sedimentation and filtration ditch 8 is complete
It flows back into the anaerobic pond 2.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be within the scope of protection determined by the claims.
Claims (5)
1. a kind of precipitating filter back-flush strengthens mud-water separation integrated water treatment equipment, it is characterised in that: including anaerobic pond
(2), mud return line (3), aerobic tank (4), blower (5), shut-off valve (6), air lift air hose (7), sedimentation and filtration ditch (8), mistake
Filtering layer (9), air lift sludge pipe (11), aeration air hose (12) and aerator (13)；
The anaerobic pond (2) is equipped with water inlet (1) and sewage to be processed and enters the anaerobic pond from the water inlet (1)
(2) in；
The aerobic tank (4) is connected to the anaerobic pond (2), and treated in the anaerobic pond (2), and that sewage can enter is described good
In oxygen pond (4)；
The blower (5) is connect by the aeration air hose (12) with the aerator (13), the aeration air hose
(12) shut-off valve (6) are set on, the aerator (13) is used for the aerobic tank (4) interior aeration aerating；
The interior bottom of the sedimentation and filtration ditch (8) is connected to the anaerobic pond (2), and filter layer (9) setting was precipitated described
Middle part in filter tank (8), the sedimentation and filtration ditch (8) is equipped with clear water discharge outlet (10) and the clear water discharge outlet (10) is positioned at described
Above filter layer (9)；
Described air lift sludge pipe (11) one end is connected to the sedimentation and filtration ditch (8) interior bottom, and the air lift sludge pipe (11) is another
One end in the mud return line (3) and the anaerobic pond (2) by being connected to；
The blower (5) is also connect with the air lift sludge pipe (11) by the air lift air hose (7) and is used to described to sink
Shallow lake filtering ponds (8) interior base sludge successively flows back into the anaerobic pond (2) through air lift sludge pipe (11) and mud return line (3)
It is interior；
The anaerobic pond (2) is equipped with mud discharging mouth (14).
2. a kind of precipitating filter back-flush as described in claim 1 strengthens mud-water separation integrated water treatment equipment, feature
It is: is provided with microbe stuffing (15) in the aerobic tank (4).
3. a kind of precipitating filter back-flush as described in claim 1 strengthens mud-water separation integrated water treatment equipment, feature
Be: the interior bottom of the sedimentation and filtration ditch (8) is equipped with back taper storage bucket (16).
It is set 4. a kind of precipitating filter back-flush as claimed in any one of claims 1-3 strengthens the processing of mud-water separation integrated water
It is standby, it is characterised in that: to pass through training wall (17) between the interior bottom of sedimentation and filtration ditch (8) and the anaerobic pond (2) internal upper part
Connection.
It is set 5. a kind of precipitating filter back-flush as claimed in any one of claims 1-3 strengthens the processing of mud-water separation integrated water
It is standby, it is characterised in that: the aerator (13) has multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811549573.4A CN109399793A (en) | 2018-12-18 | 2018-12-18 | A kind of precipitating filter back-flush reinforcing mud-water separation integrated water treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811549573.4A CN109399793A (en) | 2018-12-18 | 2018-12-18 | A kind of precipitating filter back-flush reinforcing mud-water separation integrated water treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109399793A true CN109399793A (en) | 2019-03-01 |
Family
ID=65459885
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811549573.4A Pending CN109399793A (en) | 2018-12-18 | 2018-12-18 | A kind of precipitating filter back-flush reinforcing mud-water separation integrated water treatment equipment |
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| CN (1) | CN109399793A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110482796A (en) * | 2019-09-06 | 2019-11-22 | 湖南玖恪环境工程有限公司 | A kind of purification tank and sewage treatment process |
| CN111348746A (en) * | 2020-03-31 | 2020-06-30 | 重庆丛贤环保科技有限公司 | Miniature bionic type integrated sewage treatment equipment and sewage treatment method thereof |
| CN111908715A (en) * | 2020-08-04 | 2020-11-10 | 安庆泽远化工有限公司 | High-efficient clean system of papermaking sewage |
| CN112279366A (en) * | 2020-11-20 | 2021-01-29 | 北京华宇辉煌生态环保科技股份有限公司 | Prevent sludge anaerobic fermentation's sediment device and sewage treatment system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206173173U (en) * | 2016-09-14 | 2017-05-17 | 广东粤海水务股份有限公司 | Rural sewage dephosphorization denitrogenation sewage treatment plant that no mud discharged |
| CN107082540A (en) * | 2017-06-27 | 2017-08-22 | 重庆大学 | A kind of integrated sewage treating apparatus and its handling process |
| CN209338222U (en) * | 2018-12-18 | 2019-09-03 | 重庆众源盛特环保设备制造有限公司 | A kind of precipitating filter back-flush reinforcing mud-water separation integrated water treatment equipment |
-
2018
- 2018-12-18 CN CN201811549573.4A patent/CN109399793A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206173173U (en) * | 2016-09-14 | 2017-05-17 | 广东粤海水务股份有限公司 | Rural sewage dephosphorization denitrogenation sewage treatment plant that no mud discharged |
| CN107082540A (en) * | 2017-06-27 | 2017-08-22 | 重庆大学 | A kind of integrated sewage treating apparatus and its handling process |
| CN209338222U (en) * | 2018-12-18 | 2019-09-03 | 重庆众源盛特环保设备制造有限公司 | A kind of precipitating filter back-flush reinforcing mud-water separation integrated water treatment equipment |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110482796A (en) * | 2019-09-06 | 2019-11-22 | 湖南玖恪环境工程有限公司 | A kind of purification tank and sewage treatment process |
| CN111348746A (en) * | 2020-03-31 | 2020-06-30 | 重庆丛贤环保科技有限公司 | Miniature bionic type integrated sewage treatment equipment and sewage treatment method thereof |
| CN111908715A (en) * | 2020-08-04 | 2020-11-10 | 安庆泽远化工有限公司 | High-efficient clean system of papermaking sewage |
| CN112279366A (en) * | 2020-11-20 | 2021-01-29 | 北京华宇辉煌生态环保科技股份有限公司 | Prevent sludge anaerobic fermentation's sediment device and sewage treatment system |
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