CN102179073A - Pump suction type sludge residue external reflux high-efficiency clarification tank - Google Patents
Pump suction type sludge residue external reflux high-efficiency clarification tank Download PDFInfo
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Abstract
The invention relates to a pump suction type sludge residue external reflux high-efficiency clarification tank, comprising a flocculation zone, a precipitation zone, a sludge concentration zone, an activated sludge residue reflux system, a water inlet/outlet system,d a sludge discharging system and the like. The clarification tank is mainly structured by two concentric cylinders, the zone inside the internal cylinder is the flocculation zone, the zone between the internal cylinder and the external cylinder is the precipitation zone, and the bottom is the sludge concentration zone. The flocculation zone is divided into four sector flocculation zones, a water inlet pipe is connected with the first sector flocculation zone, water flows by the four sector flocculation zones in sequence and finally enters the precipitation zone for sludge/water separation, the separated clear water rises to enter a water collecting channel for being collected and discharged out, the sludge residue enters a sludge concentration chamber at the bottom by means of own gravity so as to be concentrated, the concentrated activated sludge residue has high concentration, the sludge residue is refluxed to the first sector flocculation zone by an external sludge pump and is subjected to mixed flocculation with raw water so that the activity thereof is fully exerted to clarify the water, and simultaneously, the quantity of reflux thereof can be conveniently and accurately adjusted through the configuration of the sludge pump and a valve on an activated sludge residue reflux pipe.
Description
Technical field
The present invention relates to the water-supply technology field, be specifically related to a kind of water treatment clarification equipment, in particular for the processing of low discharge feedwater.
Background technology
Depositing reservoir technology is that two process synthesis of flocculation and precipitation are finished in structures, mainly relies on active sludge to reach the clarification purpose.When taking off steady impurity and contact with the active sludge layer with current, just tackled by slime layer, make water obtain clarification.For a long time, the water supply and drainage workers are devoted to the optimization transformation for depositing reservoir always, yet these traditional depositing reservoirs still exist some shortcoming, and particularly small-sized depositing reservoir is mainly reflected in the following aspects:
1, the active sludge concentration of Hui Liuing is lower, fixing under the situation that needs the mud amount, certainly will will increase backflow body refuse amount, finally causes the area of flocculation zone and the area of whole depositing reservoir to strengthen, and causes the waste in soil;
2, the active sludge capacity of returns is difficult to accurately control and regulates;
3, flocculation time is short, and flco is not grown up fully and just entered the settling zone separation, causes the flco come-up, and effluent quality is poor;
4, some depositing reservoir space availability ratio deficiency, water inlet can not be fully in flocculation zone carry out contact flocculation with the activated sludge that refluxes or the route in the pond, walked too short, cause the hydraulic detention time of former water in the pond shorter than the design time of staying, imperfection flocculates;
Therefore, running traditional depositing reservoir in the reality exists shortcomings such as backflow body refuse amount is big, capacity of returns is difficult for regulating, floor space is big, space availability ratio is low.
Summary of the invention
The objective of the invention is the above-mentioned not enough a kind of novel clarification equipment that proposes at traditional depositing reservoir.
The efficient depositing reservoir of pump suction type body refuse exteenal reflux, described equipment be with flocculation process, depositing technology, concentration technology centralized arrangement in a cylindrical shape pond body.
Described depositing reservoir adopts the cylindrical cell body structure, is separated into middle flocculation zone and outer field settling zone by inner core in the cylindrical cell body, and the top of described flocculation zone, settling zone is all opened wide; It under described flocculation zone and the settling zone mud enriched chamber.
Described flocculation zone radial separations becomes four identical fan-shaped flocculation zones, all along depth direction the aperture grid is set in each fan-shaped flocculation zone; The bottom lock of described first, second and the 3rd fan-shaped flocculation zone, the bottom-open of four fan-shaped flocculation zone is communicated with settling zone and mud enriched chamber; The described first fan-shaped flocculation zone upper end is communicated with the second fan-shaped flocculation zone upper end, and the second fan-shaped flocculation zone lower end is communicated with the 3rd fan-shaped flocculation zone lower end, and the 3rd fan-shaped flocculation zone upper end is communicated with four fan-shaped flocculation zone upper end.Water inlet enters from the first fan-shaped flocculation zone lower end, travel up to the first fan-shaped flocculation zone upper end, flow into the second fan-shaped flocculation zone upper end by the first fan-shaped flocculation zone upper end, current flow to the lower end from top to bottom in the second fan-shaped flocculation zone, enter the 3rd fan-shaped flocculation zone lower end from the second fan-shaped flocculation zone lower end again, current flow to the upper end from bottom to top in the 3rd fan-shaped flocculation zone, enter into four fan-shaped flocculation zone upper end by the 3rd fan-shaped flocculation zone upper end again, current flow in four fan-shaped flocculation zone from the top down, enter settling zone and mud enriched chamber at last.
The outer periphery on top, described settling zone is equipped with braiding channel, is provided with swash plate/pipe at the middle part, settling zone, specifically adopts common swash plate/pipe when larger, at the single leaf single revolution of the less employing of scale swash plate, reinforced deposition improves capacity utilization, reduces floor space.
The bottom of the described first fan-shaped flocculation zone is communicated with water inlet pipe, and centrifugal pump, pipeline static mixer, flowmeter are housed on the water inlet pipe, leaves chemical feed pipe on the pipeline static mixer; Described braiding channel is communicated with outlet pipe; The bottom of described mud enriched chamber is connected to the active sludge return duct, the active sludge return duct is provided with by-pass valve control and sludge pump, the other end of active sludge return duct inserts the first fan-shaped flocculation zone bottom, the capacity of returns of high concentration active sludge is regulated by by-pass valve control on the active sludge return duct and sludge pump, the active sludge exteenal reflux is convenient to control concentration and flow.Described mud enriched chamber bottom also is provided with sludge bucket, and the sludge bucket bottom bucket discharge pipeline that grafts clay is equipped with control valve on every pipe; First and third fan-shaped flocculation zone bottom also is provided with discharge pipeline.
Current flow through four fan-shaped flocculation zones successively in the described equipment, enter the settling zone at last and carry out mud-water separation, clear water after the separation rises and enters braiding channel collection discharge, body refuse then relies on self gravitation to enter mud enriched chamber, bottom and concentrates, has higher concentration through the active sludge after concentrating, wherein a part of active sludge relies on outside pump active sludge return-flow system, be back in the first fan-shaped flocculation zone and former water mixed flocculation, give full play to its activity, water is clarified, and the big I of active sludge capacity of returns is regulated by the valve on the active sludge return duct easily.Another part body refuse is discharged by the blow-down pipe or the sludge bucket of bottom, mud enriched chamber.
This clarification equipment is compared with traditional depositing reservoir owing to adopted aperture grid flocculation and external pump active sludge return-flow system, has the advantage of the following aspects:
1, adopting the external pump system to carry out active sludge refluxes, the active sludge capacity of returns only needs to handle the 10%-20% of the water yield, and active sludge solid content height, and its 5min settling ratio can be up to 70%, more traditional mechanical accelerating purifying pool that consumes energy is few, and this clarification device processes water yield is 10m
3During/h, floor space only is 2.22m
2Traditional depositing reservoir mostly adopts inner active sludge to reflux, because the active sludge concentration that refluxes is lower, general its 5min settling ratio only is 10%-20%, when being low-cloudy water, former water is low to moderate 4-5% especially, fixing under the situation that needs the mud amount, certainly will increase the active sludge capacity of returns, so not only increase the area of flocculation zone and whole depositing reservoir, but also increase energy consumption.And this novel device adopts the external pump return-flow system that the active sludge of bottom, mud enriched chamber is refluxed, the active sludge concentration that refluxes is bigger, winter, its body refuse 5min settling ratio can reach 70%, so capacity of returns is less, only need to handle the 10%-20% of the water yield, reduce flocculation zone and whole settling zone area, reduced the depositing reservoir operation energy consumption.
2, be convenient to the adjusting of active sludge capacity of returns.Owing to adopted the external pump active sludge return-flow system of active sludge return duct and active sludge reflux pump composition, be installed in by-pass valve control above the active sludge return duct by adjusting, can the aspect, adjust the capacity of returns of active sludge accurately.
3, improve the flocculation form, improve flocculating effect.Owing to adopt four sections aperture grid flocculations, current flow through four fan-shaped flocculation zones successively, prolonged flow process, increased flocculation time, simultaneously, the grid perforation size that adopts in each fan-shaped flocculation zone has nothing in common with each other, and increases successively from the grid perforation size that first flocculation zone to the, four flocculation zones adopt successively by flow direction, be that each section flocculation zone energy distribution is reasonable, help flco and grow up;
4, space availability ratio height is near 100%.From inlet water to outlet water, current according to designed route operation, flow through flocculation zone, settling zone fully successively, and space availability ratio is higher.
Description of drawings
Fig. 1---the efficient depositing reservoir structural representation of pump suction type body refuse exteenal reflux
Fig. 2---the efficient depositing reservoir schematic plan view of pump suction type body refuse exteenal reflux
Fig. 3---the schematic diagram of aperture orifice plate
1---water inlet pipe, 2---flocculation zone, 3---inner core, 4---cylindrical shape pond body, 5---water distributing area, 6---swash plate/pipe, 7---clear water zone, 8---braiding channel, 9---outlet pipe, 10---the mud enriched chamber, 11---sludge bucket, 12---the flocculation zone discharge pipeline, 13---the bucket discharge pipeline, 14---blow-down pipe, 15---the active sludge return duct, 16---the active sludge reflux pump, 17---the first fan-shaped flocculation zone, 18---the second fan-shaped flocculation zone, 19---the 3rd fan-shaped flocculation zone, 20---four fan-shaped flocculation zone, 21---the settling zone, 22---centrifugal pump, 23---pipeline static mixer, 24---chemical feed pipe, 25---flowmeter, 26-aperture waffle slab.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
Referring to Fig. 1, Fig. 2, Fig. 3, as can be seen, equipment adopts cylindrical shape stainless steel pond body from the figure, and top is divided into cylindrical, and the bottom is divided into truncated cone-shaped.Circular pond isotropism, stress condition and hydraulics are all very good.This device interior mainly is made up of flocculation zone 2, settling zone 21, mud enriched chamber 10, aperture waffle slab (Fig. 3), and the outside mainly is made up of water inlet pipe 1, centrifugal pump 22, pipeline static mixer 23, flowmeter 25, outlet pipe 9, discharge pipeline 12, bucket discharge pipeline 13, blow-down pipe 14, active sludge return duct 15, active sludge reflux pump 16 and pond body.
Wherein flocculation zone 2, settling zone 21 are separated to form in cylindrical shape pond body 4 by inner core 3, and they set gradually with one heart and from inside to outside.Flocculation zone radial separations again becomes four fan-shaped flocculation zones 17,18,19,20, the bottom lock of first, second and the 3rd fan-shaped flocculation zone 17,18,19, and the bottom-open of four fan-shaped flocculation zone 20 is communicated with settling zone 21 and mud enriched chamber 10; The described first fan-shaped flocculation zone 17 upper ends are communicated with the second fan-shaped flocculation zone, 18 upper ends, and the second fan-shaped flocculation zone, 18 lower ends are communicated with the 3rd fan-shaped flocculation zone 19 lower ends, and the 3rd fan-shaped flocculation zone 19 upper ends are communicated with four fan-shaped flocculation zone 20 upper ends.
Add aperture waffle slab 26 in each fan section, as Fig. 3, and the grid perforation size that adopts in each fan-shaped flocculation zone has nothing in common with each other, pressing flow direction increases from front to back successively, be that the interior G value of each section flocculation zone reduces successively, the G value that adopts successively from first flocculation zone to the, four flocculation zones is 28.1S
-1, 12.6 S
-1, 7.2 S
-1, 3.4 S
-1, average G value is 15.9 S
-1, each section energy distribution is reasonable, and flocculation time is 15min, and flocculating effect is good.
21 middle parts, settling zone have added swash plate/pipe 6, are the water distributing area 5 of settling zone under swash plate/pipe, are the clear water zone 7 of settling zone on swash plate/pipe, and the outer periphery on 21 tops, settling zone is equipped with braiding channel 8.Be mud enriched chamber 10 under flocculation zone 2 and the settling zone 21.
The water inlet pipe 1 of equipment is communicated with the first fan-shaped flocculation zone 17, and centrifugal pump 22, pipeline static mixer 23, flowmeter 25 are housed on the water inlet pipe 1, leaves chemical feed pipe 24 on the pipeline static mixer.Outlet pipe 9 is communicated with braiding channel 8.10 bottoms, mud enriched chamber are connected to active sludge return duct 15, and active sludge return duct 15 is provided with active sludge reflux pump 16, and the other end of active sludge return duct 15 takes back the first fan-shaped flocculation zone, 17 bottoms.Discharge pipeline 12 is established in the bottom of first and third fan-shaped flocculation zone 17,19, and 10 bottoms, mud enriched chamber also are provided with sludge bucket 11, and bucket discharge pipeline 13 is established in sludge bucket 11 bottoms, is equipped with control valve on every pipe.
The working method of this equipment is as follows:
Former water is through dosing, after the mixing, enter into the first fan-shaped flocculation zone 17 by water inlet pipe 1, simultaneously, the active sludge return-flow system that a part of active sludge in the mud enriched chamber 10 of device bottom is formed by active sludge return duct 15 and active sludge reflux pump 16 also is back in the first fan-shaped flocculation zone 17, carry out contact flocculation with former water, and flow through first successively, two, three, four fan-shaped flocculation zone 17-20, by built-in aperture waffle slab 26(Fig. 3), finish flocculation more fully, water after the flocculation enters settling zone 21 by the lower end of four fan-shaped flocculation zone 20 and carries out mud-water separation, clear water is upwards successively through the water distributing area 5 of settling zone 21, swash plate/area under control 6, clear water zone 7, after entering braiding channel 8 collections, discharge by outlet pipe 9, and body refuse is because self gravity, separates the back and slides to mud enriched chamber 10 21 times from the settling zone and concentrate, and the active sludge part after concentrating is discharged by blow-down pipe 14, another part is then refluxed it by external pump active sludge return-flow system, successively circulation.
Therefore, on function, this is provided with and comprises that mainly inlet and outlet system, flocculation zone, precipitation zone, mud concentrate zone, active sludge return-flow system, spoil disposal blowdown system, introduce the principle and the effect of each several part below respectively.
1, inlet and outlet system
Direct water intake mode is adopted in water inlet, water inlet pipe is communicated with the first fan-shaped flocculation zone, control valve, pipeline static mixer (above be provided with dosing mouth), flowmeter are installed on the water inlet pipe between the pulsating pump and the first fan-shaped flocculation zone successively, regulate the flow of inlet water of former water by control valve, former water mixes in pipeline static mixer strongly rapidly with medicament, enters flocculation zone then.Effluent adopting aperture submerged goes out stream.
2, flocculation zone
Former water is after water inlet pipe enters the bottom of first fan-shaped flocculation zone, flow from bottom to top with the active sludge that refluxes, and flow through first, second, third and fourth fan-shaped flocculation zone successively, carry out contact flocculation simultaneously, because the former water of dosing has taken off surely, when taking off steady impurity and contact with active sludge with current, just tackled by body refuse, make water obtain clarification, simultaneously, the aperture grid in every section fan section is owing to the different apertures of taking from small to large, so the G value in the flocculation process is more and more littler, the G value that adopts successively from first flocculation zone to the, four flocculation zones is 28.1S
-1, 12.6 S
-1, 7.2 S
-1, 3.4 S
-1, average G value is 15.9 S
-1, each section energy distribution is reasonable, helps the growth of flco;
3, precipitation zone
Through the bottom inflow settling zone of the water after the flocculation from flocculation zone, carry out mud-water separation, clear water after the separation passes water distributing area, swash plate (pipe) district, the clear water zone of settling zone from lower to upper successively, enter braiding channel and collect the back discharge, body refuse then relies on the gravity of self downward, entering the mud enriched chamber concentrates, when part does not have the granule flco of separation to distinguish with the swash plate of flowing through on the current direction (pipe), according to shallow pool theory, the district will further be separated at swash plate (pipe), optimize effluent quality.
4, mud concentrates the zone
Carrying out body refuse after the mud-water separation relies on the gravity of self to enter mud to concentrate the zone, in this zone, concentrate, the body refuse moisture content is reduced, increase solid content,, still have suitable activity because the remnants of medicament are arranged in the body refuse, make full use of the dosage that these activated body refuses can reduce equipment, so a part of active sludge is refluxed, and establishes blow-down pipe, regularly discharge unnecessary body refuse in mud enrichment region bottom;
5, active sludge return-flow system
The body refuse part that mud concentrates in the zone is discharged by blow-down pipe, a part then is back to it in first fan-shaped flocculation zone by the active sludge return-flow system that active sludge return duct, active sludge reflux pump are formed in addition, rely on self activity and former water to carry out contact flocculation, former water is purified, and can reduce the equipment dosage, improve effluent quality, and the big I of active sludge capacity of returns makes things convenient for, regulates by the valve on the active sludge return duct accurately.
6, spoil disposal, blowdown system
According to the structure of this clarification equipment, the concrete path in conjunction with current is provided with discharge pipeline in the bottom of the first, the 3rd fan-shaped flocculation zone, bottommost at equipment is provided with blow-down pipe, be provided with two little sludge buckets in the both sides of mud thickening cone, and the bucket discharge pipeline has been installed, be convenient to the flexibility spoil disposal.
In this clarification equipment, when the body refuse capacity of returns is 20% of an inflow, in the time of dosage 4mg/L, delivery turbidity just can drop to below the 3NTU, and the active sludge 5min settling ratio that reflux this moment can be up to more than 70%, so this clarification equipment has returned sludge concentration height, save dose, the little and easy adjusting of capacity of returns, flocculating effect is good, advantages such as effluent quality is good have promotional value.
Claims (4)
1. the efficient depositing reservoir of pump suction type body refuse exteenal reflux is characterized in that,
Described depositing reservoir adopts the cylindrical cell body structure, in cylindrical cell body (4), be separated into middle flocculation zone (2) and outer field settling zone (21) by inner core (3), the top of described flocculation zone (2), settling zone (21) is all opened wide, under be mud enriched chamber (10);
Described flocculation zone (2) is become four identical fan-shaped flocculation zones by radial separations, all along depth direction multilayer aperture orifice plate (26) is set in each fan-shaped flocculation zone; The bottom lock of described first, second and the 3rd fan-shaped flocculation zone (17,18,19), the bottom-open of four fan-shaped flocculation zone (20) is communicated with settling zone (21) and mud enriched chamber (10); The described first fan-shaped flocculation zone (17) upper end is communicated with the second fan-shaped flocculation zone (18) upper end, second fan-shaped flocculation zone (18) lower end is communicated with the 3rd fan-shaped flocculation zone (19) lower end, and the 3rd fan-shaped flocculation zone (19) upper end is communicated with four fan-shaped flocculation zone (20) upper end;
The outer periphery on top, described settling zone (21) is equipped with braiding channel (8), and (21) middle part is provided with swash plate/pipe in the settling zone;
The bottom of the described first fan-shaped flocculation zone (17) is communicated with water inlet pipe (1), and centrifugal pump (22), pipeline static mixer (23), flowmeter (25) are housed on the water inlet pipe (1), leaves chemical feed pipe (24) on the pipeline static mixer (23); Described braiding channel (8) is communicated with outlet pipe (9); The bottom of described mud enriched chamber (10) is connected to active sludge return duct (15), and the active sludge return duct is provided with by-pass valve control and sludge pump (16), and the other end of active sludge return duct (15) inserts the first fan-shaped flocculation zone (17) bottom; Described mud enriched chamber (10) bottom also is provided with sludge bucket (11), and sludge bucket (11) the bottom bucket discharge pipeline (13) that grafts clay is equipped with control valve on every pipe; First and third fan-shaped flocculation zone (17,19) bottom also is provided with discharge pipeline (12).
2. the efficient depositing reservoir of pump suction type body refuse according to claim 1 exteenal reflux is characterized in that: the active sludge capacity of returns of described depositing reservoir is between 10%-20%, and concentration is about 25%; Dosage is in the 3-8mg/L scope, and delivery turbidity is lower than 3NTU.
3. the efficient depositing reservoir of pump suction type body refuse according to claim 1 and 2 exteenal reflux, it is characterized in that, the perforation size of the aperture waffle slab (26) that is provided with in described four fan-shaped flocculation zones is pressed flow direction and is increased successively from front to back, G value in each section flocculation zone reduces successively, and the G value that adopts successively from the four fan-shaped flocculation zone of the first fan-shaped flocculation zone to the is 28.1S
-1, 12.6 S
-1, 7.2 S
-1, 3.4 S
-1, average G value is 15.9 S
-1, each section energy distribution is reasonable, and flocculation time is 15min, and flocculating effect is good.
4. the efficient depositing reservoir of pump suction type body refuse according to claim 3 exteenal reflux is characterized in that, swash plate/pipe that described settling zone (21) middle part is provided with adopts common swash plate/pipe when larger, hour adopts single leaf single to turn round swash plate in scale.
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| CN2011100804358A CN102179073A (en) | 2011-03-31 | 2011-03-31 | Pump suction type sludge residue external reflux high-efficiency clarification tank |
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| CN2011100804358A CN102179073A (en) | 2011-03-31 | 2011-03-31 | Pump suction type sludge residue external reflux high-efficiency clarification tank |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103785198A (en) * | 2012-10-30 | 2014-05-14 | 北京亿维德曼科技发展有限公司 | Efficient deep cone sludge thickener |
| CN103896384A (en) * | 2014-04-18 | 2014-07-02 | 重庆大学 | Multiple-point floc reflux enhanced coagulation method and multiple-point floc reflux enhanced coagulation system for grid flocculation basin of water supply plant |
| CN104692509A (en) * | 2015-04-02 | 2015-06-10 | 北京市市政工程设计研究总院有限公司 | Precise reflux type mechanical agitation settling pond and treatment technique |
| CN107297090A (en) * | 2017-05-15 | 2017-10-27 | 南昌航空大学 | A kind of Dual-drum depositing reservoir |
| CN109647015A (en) * | 2018-12-31 | 2019-04-19 | 中国能源建设集团华东电力试验研究院有限公司 | Coagulation-flocculation clarifier sludge floating elimination system and control method |
| CN109748420A (en) * | 2018-12-31 | 2019-05-14 | 中国能源建设集团华东电力试验研究院有限公司 | Coagulation-flocculation clarifier sludge floating processing system and control method |
| CN109824231A (en) * | 2018-12-31 | 2019-05-31 | 中国能源建设集团华东电力试验研究院有限公司 | Coagulation-flocculation clarifier sludge floating Processing for removing device and control method |
| CN111701286A (en) * | 2020-05-25 | 2020-09-25 | 北京中航泰达环保科技股份有限公司 | Sintering flue gas desulfurization waste water high efficiency separates clarification processing apparatus |
| CN113968609A (en) * | 2021-06-25 | 2022-01-25 | 北京绿恒科技有限公司 | Self-adaptive weighted sludge clarification tank |
| CN114133008A (en) * | 2021-11-29 | 2022-03-04 | 北京绿恒科技有限公司 | Lateral flow multistage circulating encryption water purifying device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785198A (en) * | 2012-10-30 | 2014-05-14 | 北京亿维德曼科技发展有限公司 | Efficient deep cone sludge thickener |
| CN103896384A (en) * | 2014-04-18 | 2014-07-02 | 重庆大学 | Multiple-point floc reflux enhanced coagulation method and multiple-point floc reflux enhanced coagulation system for grid flocculation basin of water supply plant |
| CN103896384B (en) * | 2014-04-18 | 2015-05-13 | 重庆大学 | Multiple-point floc reflux enhanced coagulation method and multiple-point floc reflux enhanced coagulation system for grid flocculation basin of water supply plant |
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| CN107297090A (en) * | 2017-05-15 | 2017-10-27 | 南昌航空大学 | A kind of Dual-drum depositing reservoir |
| CN109748420B (en) * | 2018-12-31 | 2023-07-04 | 中国能源建设集团华东电力试验研究院有限公司 | Sludge floating treatment system of coagulation flocculation sedimentation tank and control method |
| CN109748420A (en) * | 2018-12-31 | 2019-05-14 | 中国能源建设集团华东电力试验研究院有限公司 | Coagulation-flocculation clarifier sludge floating processing system and control method |
| CN109824231A (en) * | 2018-12-31 | 2019-05-31 | 中国能源建设集团华东电力试验研究院有限公司 | Coagulation-flocculation clarifier sludge floating Processing for removing device and control method |
| CN109647015B (en) * | 2018-12-31 | 2023-07-04 | 中国能源建设集团华东电力试验研究院有限公司 | Coagulation flocculation sedimentation tank sludge floating eliminating system and control method |
| CN109647015A (en) * | 2018-12-31 | 2019-04-19 | 中国能源建设集团华东电力试验研究院有限公司 | Coagulation-flocculation clarifier sludge floating elimination system and control method |
| CN109824231B (en) * | 2018-12-31 | 2023-07-04 | 中国能源建设集团华东电力试验研究院有限公司 | Device for eliminating sludge floating up of coagulation flocculation sedimentation tank and control method |
| CN111701286A (en) * | 2020-05-25 | 2020-09-25 | 北京中航泰达环保科技股份有限公司 | Sintering flue gas desulfurization waste water high efficiency separates clarification processing apparatus |
| CN111701286B (en) * | 2020-05-25 | 2023-09-26 | 北京中航泰达环保科技股份有限公司 | High-efficient separation clarification processing apparatus of sintering flue gas desulfurization waste water |
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Application publication date: 20110914 |