CN101601947A - A kind of sludge concentration method and filtering separation device thereof - Google Patents
A kind of sludge concentration method and filtering separation device thereof Download PDFInfo
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- CN101601947A CN101601947A CNA2009101005603A CN200910100560A CN101601947A CN 101601947 A CN101601947 A CN 101601947A CN A2009101005603 A CNA2009101005603 A CN A2009101005603A CN 200910100560 A CN200910100560 A CN 200910100560A CN 101601947 A CN101601947 A CN 101601947A
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Abstract
A kind of sludge concentration method and filtering separation device thereof, its method for concentration step is to adopt the tubulose filter core to carry out isolated by filtration on filtering separation device to the residual active sludge of primary sludge or second pond or both mixing sludges to become thickened sludge, and filter back clear liquid is discharged and handled; Then thickened sludge is carried out filter-press dehydration on filter press and be processed into the mud cake outward transport.Described filtering separation device by cylindrical shell, be located at tubulose filter core, fixed head, water leg that arranged vertical in the cylindrical shell distributes, be located at sludge stream inlet, mud collecting region on the cylindrical shell, be with the spoil disposal passage etc. of valve to constitute.The invention has the advantages that: 1. the thickened sludge moisture content is low; 2. concentration time is short; 3. floor space is little, and device volume is little; 4. cost of investment is low; 5. operating cost is low, and filter core adopts backwash, long service life.
Description
Technical field
The present invention relates to sludge concentration method and device in a kind of sewage disposal process, the sludge concentration method and the filtering separation device thereof that produce in particularly a kind of sewage disposal.
Background technology
Mud in the present known sewage disposal process mainly comprises primary sludge and the residual active sludge of second pond or both mixing sludges of preliminary sedimentation tank, and its thickening has: gravity concentrates, air supporting concentrates and methods such as machinery concentrates.Wherein to concentrate be the most frequently used sludge concentration method at present to gravity, and it is a kind of depositing technology in essence, though its technology, structure and operational management are simple, floor space is big, sanitary condition is poor generally greater than 12 hours the time of staying in the pond for mud; Air supporting concentrates and to be applicable to relative density near 1 lyophobic dust, as the aerobic sigestion activated sludge, but is not suitable for the bigger mud of relative density such as primary sludge; Machinery concentrate mainly contain centrifugally concentrate, belt or board-like press filtration, but its investment is big, the expense height of operation and maintenance.The moisture content that the employing distinct methods concentrates behind (mixing) mud is as shown in table 1.
Moisture content after table 1 mud concentrates
| Method for concentration | Gravity concentrates | Air supporting concentrates | Centrifugal concentrating | Filter-press dehydration |
| Moisture content % | ～97 | ～97 | ～80 | ?70-75 |
At present China to use maximum be that first gravity concentrates and transports outward landfill disposal behind the filter-press dehydration again, its technological process is as shown in Figure 1.
Chinese patent application number 200710016665.1 " sludge concentration desiccation integral pools " disclose a kind of equipment of mud concentration, it is characterized in that: pond body bottom is provided with impervious barrier, drainage blanket, drain measure pipe, drainage layer with holes from the bottom to top successively, body top, pond is provided with cleaning shoe, the both sides of cleaning shoe are provided with connector, the connector outer end is slidingly arranged on the chute of pool wall, and body middle part in pond can also be provided with divider wall.Concentrated, mummification double action that this invention has utilizes the filtration of lower floor's filtrate to discharge the mud lower layer of water, has shortened mud and has shunk the cycle.Summer and autumn, moisture percentage in sewage sludge reduced to 88%, 79%, 75% respectively by initial 99% in three days; In winter in spring, moisture percentage in sewage sludge reduced to 97%, 94%, 92% respectively by initial 99% in three days.But the floor space of this invention (embodiment is 480 square metres) still bigger than normal, concentration time long (being generally 3 days).
Chinese patent application number 200610025592.8 " flat plate film sludge concentration and treatment process " disclose a kind of mud concentration technology, it is characterized in that: be arranged on by the submergence of integral flat film and constitute the flat plate film sludge concentration basin in the concentration basin that is provided with aerator, the flat sheet membrane concentration basin carries out concentration to the residual active sludge of the second pond that enters discharging or the residual active sludge of second pond discharging and the mixing sludge of primary sludge, through the flat sheet membrane water outlet, the mud through concentrating enters follow-up dewatering system and handles.The water quality of this invention film water outlet reaches middle water quality standard, can be back to fields such as greening, road flushing, but the moisture content of this invention thickened sludge higher (97-98%), film running need consumption of power, and investment is higher with operating cost.
Summary of the invention
The objective of the invention is at domestic existing mud concentration technique, especially the deficiency of gravity concentration technique, provide a kind of tubulose filter core that adopts material for core system that mud is carried out gravity filtration and separates after the sludge concentration method and the filtering separation device thereof of press filtration again.
Purpose of the present invention is achieved through the following technical solutions: a kind of sludge concentration method is characterized in that this method comprises the following steps:
1. isolated by filtration: adopt the tubulose filter core of material for core system that the gravity precipitating sludge is carried out isolated by filtration on filtering separation device and become thickened sludge, filter back clear liquid is discharged and is handled;
2. press filtration is handled: on filter press the thickened sludge of isolated by filtration is carried out filter-press dehydration and be processed into the mud cake outward transport.
Described precipitating sludge is the residual active sludge of primary sludge or second pond or both mixing sludges.
A kind of filtering separation device of sludge concentration method, it is characterized in that this device has a cylindrical shell, described cylindrical shell one side is provided with the sludge stream inlet, be provided with the tubulose filter core that many arranged verticals distribute in the cylindrical shell, the location is inserted with fixing integrated circuit board in this tubulose filter core upper end, and is pressed in upper orifice portion and seals, and tubulose filter core lower end and water leg card are inserted and located, water leg is fixed in the cylindrical shell, and the lower nozzle portion of tubulose filter core is pressed into the lower sealing that connects with water leg; And the water leg notch is provided with and the fixing clear liquid discharging mouth of cylindrical shell, and this clear liquid discharging mouth is again a backwash air inlet water inlet simultaneously; Described cylindrical shell bottom is provided with the mud collecting region, and the bottom is provided with the spoil disposal passage of band valve.
Described cylindrical shell is cylindric or the square tube shape.
Described tubulose filter core is pottery or PP material for core system.
Described fixed head ringwise or a plurality of concentric ring form, and a plurality of concentric ring is by some first connecting plates one that links to each other; The fixed head that annular or a plurality of concentric rings are formed is fitted in the cylindrical shell cylindraceous.
The described fixed head side of being annular or a plurality of concentric Fang Huan form, and are provided with a plurality of being arranged in parallel and second connecting plate that spacing is identical and the one that links to each other in the annular fixed head in side; The fixed head that a plurality of concentric Fang Huan form is by the continuous one of the 3rd connecting plate; The fixed head that side's annular or a plurality of concentric Fang Huan form is fitted in the cylindrical shell of square tube shape.
Described cylindrical shell is provided with observation window.
Described cylindrical shell top is provided with the cover equipped with cylindrical shell, and cover is provided with Pressure gauge and air bleeding valve.
Described tubulose filter core employing compressed air or water pump pump water the air inlet water inlet of separator water leg after filtration carry out regular backwash.
Whole process can realize automation control.
Compared with prior art, sludge filtration separator of the present invention: the precipitating sludge that produces in the sewage disposal process is because the height of water, from flowing into the sludge filtration separator, vertical arrangement manifold shape filter core carries out the filtering and concentrating separation to mud in the device, moisture in the mud enters each tubulose filter core endoporus after filtration, discharge from the clear water floss hole by water leg, thickened sludge access to plant bottom taper mud collecting region is discharged through bottom spoil disposal passage.
The moisture content of thickened sludge of the present invention can reach below 90%, and can regulate by the flow mode of spoil disposal channel valve adjusting thickened sludge.Compare with existing gravity concentration technique, main feature of the present invention is: 1. the thickened sludge moisture content is low, can reach below 90%, and conventional gravity method for concentration is about 97%; 2. concentration time is short, only needs a few minutes, and conventional gravity method for concentration was greater than 12 hours; 3. floor space is little, and the gravity method for concentration of the comparable routine of volume of device dwindles more than 50 times; 4. cost of investment is little, because device volume dwindles significantly, cost of investment also reduces significantly; 5. operating cost is low, owing to adopt gravity filtration, does not need consumption of power, only need consume a small amount of power when backwash, and because filter core adopts automatic backwash, filter element life is long, so expense is low.
Description of drawings
Fig. 1 is the common Treatment of Sludge flow chart of China.
Fig. 2 is a sludge concentration method flow chart of the present invention.
Fig. 3 is a sludge filtration separator structural representation of the present invention.
Fig. 4 is embodiment 1 tubulose filter core arrangement mode figure.
Fig. 5 is embodiment 2 tubulose filter core arrangement mode figure.
Fig. 6 is embodiment 3 tubulose filter core arrangement mode figure.
Fig. 7 is embodiment 4 tubulose filter core arrangement mode figure.
The specific embodiment
Below in conjunction with above-mentioned accompanying drawing specific embodiments of the present invention is described in detail.
A kind of sludge concentration method, this method comprises the following steps: in conjunction with Fig. 2
1. isolated by filtration: adopt the tubulose filter core of material for core system that the gravity precipitating sludge is carried out isolated by filtration on filtering separation device and become thickened sludge, filter back clear liquid is discharged and is handled;
2. press filtration is handled: on filter press the thickened sludge of isolated by filtration is carried out filter-press dehydration and be processed into the mud cake outward transport.
In the mud concentration process, filtering function for the tubulose filter core that guarantees to recover to make by pottery or PP material for core, must carry out regular backwash to the tubulose filter core in the filtering separation device, backwash adopts compressed air or water pump pump water in the air inlet water inlet enters the pore of tubulose filter core, wash away the mud on the outer surface tube wall, comprise residual active sludge or both mixing sludges of primary sludge or second pond.
The isolated by filtration of mud, press filtration are handled and can be realized automation control to the backwash of tubulose filter core.
Realize the filtering separation device of sludge concentration method such as Fig. 3～shown in Figure 7, among the figure: seal on 1-cylindrical shell, 2-sludge stream inlet, 3-cover, 4-Pressure gauge, 5-air bleeding valve, 6-observation window, the 7-, 8-fixed head, 9-tubulose filter core, 10-lower sealing, 11-water leg, 12-clear liquid discharging mouth (air inlet water inlet), 13-support, 14-mud collecting region, 15-spoil disposal passage, 16-first connecting plate, 17-second connecting plate, 18-the 3rd connecting plate.
This filtering separation device has a cylindrical shell 1, and cylindrical shell can be cylindric or the square tube shape, and cylindrical shell one side is provided with sludge stream inlet 2, and the height of water of utilizing mud is from flowing into cylindrical shell.Be provided with the manifold shape filter core 9 that arranged vertical distributes in the cylindrical shell, this tubulose filter core is made by pottery or PP material for core.The location is inserted with fixed head 8 cards in tubulose filter core upper end, and be pressed in upper orifice portion and seal 7, tubulose filter core lower end and water leg 11 cards are inserted the location, and lower nozzle portion be pressed into the band through hole lower sealing 10, and the through hole and the water leg of lower sealing connect, fixed head and water leg be as the positioning supporting part of tubulose filter core, water leg in advance with the cylinder inboard wall solid welding, again fixed head is carried out removable the connection with cylindrical shell after installing the tubulose filter core.Water leg notch end has a clear liquid discharging mouth 12, communicates also solid welding with water leg on cylinder body outer wall, and the clear liquid outlet is again the air inlet water inlet 12 of backwash simultaneously.
Fixed head 8 has different version, the fixed head of embodiment 1 ringwise, as shown in Figure 4, tubulose filter core 9 vertically is closely packed on the fixed head and water leg of annular, suitable being fitted in the cylindrical shell cylindraceous.The fixed head of embodiment 2 is a plurality of concentric rings and forms, as shown in Figure 5, and by first connecting plate 16 of 3 radial equipartitions one that link to each other, same suitable being fitted in the cylindrical shell cylindraceous.The fixed head side of the being annular of embodiment 3 as shown in Figure 6, is provided with in the fixed head of side annular and a plurality ofly is arranged in parallel and second connecting plate 17 that spacing the is identical one that link to each other suitable being fitted in the cylindrical shell of square tube shape.The fixed head of embodiment 4 is a plurality of concentric side's ring structures, as shown in Figure 7, and by the 3rd connecting plate 18 continuous one, same suitable being fitted in the cylindrical shell of square tube shape.
The water leg 11 of tubulose filter core 9 lower ends is done supporting design by fixed head 8 shapes of upper end, as the annular fixed head shape of Fig. 4, guarantees that simultaneously the water that is separated in the tubulose filter core can both enter in the water leg.
The cylindrical shell bottom is provided with the mud collecting region 14 of taper, collects the mud of sinking, discharges through the spoil disposal passage 15 of bottom band valve, and the support 13 of cylindrical shell bottom is raised cylindrical shell, is convenient to collect the mud of separating.
Cylindrical shell is provided with observation window 6, and the top is provided with the cover 3 equipped with cylindrical shell, and cover is provided with Pressure gauge 4 and air bleeding valve 5.
The whole process of the present invention can realize automation control.
The cylindrical shell size of present embodiment is made φ 1m * 2m, the tubulose filter core is arranged 60 by Fig. 4 mode, adopt the PP filter core, the filter element filtering precision is 5 μ m, filter core length is 1m, external diameter 6cm, diameter of bore 3.5cm, the bore of sludge stream inlet, drain outlet and clear liquid discharging mouth (air inlet water inlet) is 50mm.
Moisture content is that 99% primary sludge is from flowing into filtering separation device, flow-control is at 5～10 tons/hour, filter back clear liquid flows out from the clear liquid outlet with 4.5～9 tons/hour, mud after concentrating is discharged from the mud discharging mouth, flow-control is at 0.5～1 ton/hour, and the gained moisture percentage in sewage sludge drops to 90%.Concentrate with conventional gravity and to compare, the moisture content of thickened sludge drops to 90% from 97%, and sludge volume reduces 70%, significantly reduces the expense of subsequent treatment.
Claims (10)
1, a kind of sludge concentration method is characterized in that this method comprises the following steps:
1. isolated by filtration: the tubulose filter core that adopts material for core system on filtering separation device carries out isolated by filtration and becomes thickened sludge from flowing into mud gravitational settling, and filter back clear liquid is discharged and handled;
2. press filtration is handled: on filter press the thickened sludge of isolated by filtration is carried out filter-press dehydration and be processed into the mud cake outward transport.
2, a kind of sludge concentration method according to claim 1 is characterized in that described precipitating sludge is the residual active sludge of primary sludge or second pond or both mixing sludges.
3, a kind of filtering separation device of sludge concentration method according to claim 1, it is characterized in that this device has a cylindrical shell, described cylindrical shell one side is provided with the sludge stream inlet, be provided with the tubulose filter core that many arranged verticals distribute in the cylindrical shell, the location is inserted with fixing integrated circuit board in this tubulose filter core upper end, and is pressed in upper orifice portion and seals, and tubulose filter core lower end and water leg card are inserted and located, water leg is fixed in the cylindrical shell, and the lower nozzle portion of tubulose filter core is pressed into the lower sealing that connects with water leg; And the water leg notch is provided with and the fixing clear liquid discharging mouth of cylindrical shell, and this clear liquid discharging mouth is again a backwash air inlet water inlet simultaneously; Described cylindrical shell bottom is provided with the mud collecting region, and the bottom is provided with the spoil disposal passage of band valve.
4, filtering separation device according to claim 3 is characterized in that described cylindrical shell is cylindric or the square tube shape.
5, filtering separation device according to claim 3 is characterized in that described tubulose filter core is pottery or PP material for core system.
6, according to claim 3 or 4 or 5 described filtering separation devices, it is characterized in that described fixed head ringwise or a plurality of concentric ring form, and a plurality of concentric ring is by some first connecting plates one that links to each other; The fixed head that annular or a plurality of concentric rings are formed is fitted in the cylindrical shell cylindraceous.
7, according to claim 3 or 4 or 5 described filtering separation devices, it is characterized in that the described fixed head side of being annular or a plurality of concentric Fang Huan form, be provided with a plurality of being arranged in parallel and second connecting plate that spacing is identical and the one that links to each other in the annular fixed head in side; The fixed head that a plurality of concentric Fang Huan form is by the continuous one of the 3rd connecting plate; The fixed head that side's annular or a plurality of concentric Fang Huan form is fitted in the cylindrical shell of square tube shape.
8, filtering separation device according to claim 3 is characterized in that described cylindrical shell is provided with observation window.
9, filtering separation device according to claim 3 is characterized in that described cylindrical shell top is provided with the cover equipped with cylindrical shell, and cover is provided with Pressure gauge and air bleeding valve.
10, filtering separation device according to claim 3, it is characterized in that described tubulose filter core adopt compressed air or water pump pump water after filtration the air inlet water inlet of separator water leg carry out regular backwash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200910100560 CN101601947B (en) | 2009-07-07 | 2009-07-07 | Sludge concentration method and filtering separation device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910100560 CN101601947B (en) | 2009-07-07 | 2009-07-07 | Sludge concentration method and filtering separation device thereof |
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| CN101601947A true CN101601947A (en) | 2009-12-16 |
| CN101601947B CN101601947B (en) | 2011-06-01 |
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| CN 200910100560 Expired - Fee Related CN101601947B (en) | 2009-07-07 | 2009-07-07 | Sludge concentration method and filtering separation device thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671445A (en) * | 2012-06-06 | 2012-09-19 | 福建省南安市星原气体有限公司 | Draining box |
| CN103623640A (en) * | 2013-12-20 | 2014-03-12 | 王新明 | No-plugging-type efficient full-automatic permeating and filtering device |
| CN104609696A (en) * | 2015-01-29 | 2015-05-13 | 浙江科力尔环保设备有限公司 | Sludge concentration device and sludge concentration method |
| CN105833609A (en) * | 2016-04-27 | 2016-08-10 | 池州大自然环保工程有限公司 | Sediment and filtering mud-water separator |
| CN108911450A (en) * | 2018-09-20 | 2018-11-30 | 杭州国泰环保科技股份有限公司 | Sludge concentrator |
| CN109382058A (en) * | 2018-11-02 | 2019-02-26 | 四川思达能环保科技有限公司 | A kind of Novel filtration enrichment facility and main reaction kettle device |
| CN113713491A (en) * | 2021-07-30 | 2021-11-30 | 成都思达能环保设备有限公司 | Filter element mounting structure and filter device comprising same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1631815A (en) * | 2003-12-25 | 2005-06-29 | 辽宁绿碧蓝环境工程有限公司 | Method for treating and reusing hospital sewage |
| CN1792830A (en) * | 2005-10-21 | 2006-06-28 | 赵树彦 | Tech. for treating coal mud water by tow section concentration, tow section recovery |
| CN100588626C (en) * | 2007-09-12 | 2010-02-10 | 昆山工研院华科生物高分子材料研究所有限公司 | Heavy metal waste water continuous treating method and treating device thereof |
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2009
- 2009-07-07 CN CN 200910100560 patent/CN101601947B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671445A (en) * | 2012-06-06 | 2012-09-19 | 福建省南安市星原气体有限公司 | Draining box |
| CN102671445B (en) * | 2012-06-06 | 2015-01-14 | 福建省南安市星原气体有限公司 | Draining box |
| CN103623640A (en) * | 2013-12-20 | 2014-03-12 | 王新明 | No-plugging-type efficient full-automatic permeating and filtering device |
| CN103623640B (en) * | 2013-12-20 | 2015-07-22 | 王新明 | No-plugging-type efficient full-automatic permeating and filtering device |
| CN104609696A (en) * | 2015-01-29 | 2015-05-13 | 浙江科力尔环保设备有限公司 | Sludge concentration device and sludge concentration method |
| CN105833609A (en) * | 2016-04-27 | 2016-08-10 | 池州大自然环保工程有限公司 | Sediment and filtering mud-water separator |
| CN108911450A (en) * | 2018-09-20 | 2018-11-30 | 杭州国泰环保科技股份有限公司 | Sludge concentrator |
| CN109382058A (en) * | 2018-11-02 | 2019-02-26 | 四川思达能环保科技有限公司 | A kind of Novel filtration enrichment facility and main reaction kettle device |
| CN113713491A (en) * | 2021-07-30 | 2021-11-30 | 成都思达能环保设备有限公司 | Filter element mounting structure and filter device comprising same |
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| CN101601947B (en) | 2011-06-01 |
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