CN105585238A - Sludge treatment method - Google Patents
Sludge treatment method Download PDFInfo
- Publication number
- CN105585238A CN105585238A CN201610114758.7A CN201610114758A CN105585238A CN 105585238 A CN105585238 A CN 105585238A CN 201610114758 A CN201610114758 A CN 201610114758A CN 105585238 A CN105585238 A CN 105585238A
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- China
- Prior art keywords
- sludge
- mud
- treatment
- water
- pond
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a sludge treatment method which comprises the following steps: sending sludge into a sludge temporary storage tank, wherein a pretreatment tank comprises a first treatment tank and a second treatment tank; pumping the sludge in the slurry temporary storage tank into a first treatment tank, inputting a flocculant into the first treatment tank, and carrying out first-rotating-speed stirring on the flocculant and sludge in the first treatment tank; after finishing stirring the sludge in the first treatment tank, enabling the slurry to flow into the second treatment tank, and carrying out second-rotating-speed stirring, wherein the speed of the first-rotating-speed stirring is greater than that of the second-rotating-speed stirring; after finishing stirring the slurry in the second treatment tank, pumping the slurry into a filter press, and carrying out sludge-water separation. The sludge treated by the method has the advantages of favorable dehydration effect and low water content, is relatively drier, has certain strength, and greatly promotes the sludge heaping safety. The sludge cake formed by the sludge can be used as a material for brick making and the like, thereby saving the land resources required by landfill. The sludge water generated after the sludge treatment can be reutilized after passing through the water treatment system.
Description
Technical field
The present invention relates to sludge treatment field, particularly a kind of process for treating sludge.
Background technology
At present, the treatment technology of tunnel mud mainly contains natural sedimentation method and dry ground mixing method. Natural sedimentation method is to utilizeThe difference of mud, water density, the method that Ni Heshui is separated by the method for natural sedimentation. Natural sedimentation method without any need forPlant equipment, only need can reach the object that mud, water separate by staticly settling effect; But the natural sedimentation method processing timeGrow and cannot accomplish mud-water separation completely, and the place needing is larger. This method of disposal is simple, Yi Hang, cost are low, becomes silted upMud does not need again high dehydration, strong adaptability. But also there are some problems in mud landfill, espespecially loading embeading percolation liquid and mound peaceFull problem. Percolate is a kind of liquid being heavily polluted, if site selection of landfill or move improper can polluted underground water environment.In addition, need tunnel to be processed mud to contain emulsifying agent, mud and water mix under the effect of emulsifying agent, are difficult to reach mudThe object that water separates, the loose even pulp of shale easily forms landslide, thereby affects the safety stacking of mound field.
Dry ground mixing method is to add dry ground in shield structure mud, thereby native overall moisture content is reduced; Dry ground mixesMethod needs a large amount of earth material resources, and need to dry ground and shield structure mud fully be stirred by plant equipment. In addition, shield structure becomes silted upThe moisture content of mud more than 80%, reaches direct-burried standard if need to make entirety be unearthed conventionally, need to add 6 times of above doingSoil. This method construction cost is higher, also can take a large amount of places simultaneously.
Summary of the invention
In view of this, the present invention proposes a kind of process for treating sludge, with the sludge treatment problem solving.
On the one hand, the invention provides a kind of process for treating sludge, first mud is sent in mud scratch pool to pretreatmentPond comprises the first treatment pond and the second treatment pond; In sludge pumping to the first treatment pond in mud scratch pool, flocculant is defeatedEnter to the first treatment pond, flocculant and mud carry out the first rotating speed stirring at the first treatment pond; Mud stirs at the first treatment pondAfter having mixed, flow to and in the second treatment pond, carry out the second rotating speed stirring; The first rotating speed mixing speed is greater than the second rotating speed and stirs speedDegree, mud is pumped to filter press and carries out mud-water separation after the second treatment pond has stirred.
For saving water resource, protection of the environment, solves the filter press muddy water problem producing of finishing dealing with, in skill furtherIn art scheme, the muddy water that filter press produces after finishing dealing with enters water treatment system and processes.
In order to make water-oil separating, in technical scheme further, in the first treatment pond, input demulsifier, flocculant and siltMud and demulsifier carry out the first rotating speed stirring at the first treatment pond.
For purifying water, in technical scheme further, in the water treating pond in water treatment system, add demulsifier.
Produce mud processed again in order to solve water treatment system, in technical scheme further, through waterThe mud that treatment system produces after finishing dealing with inputs in mud scratch pool.
Further, the earth that filter press produces after finishing dealing with is transported by conveyer.
In order to produce very little graininess flocculate, make floc density high, obviously, precipitation is rapid, flocculating effect in boundaryGood. In technical scheme further, flocculant by water and PAMA and non-ionic polyacrylamide preparation andBecome, the concentration of non-ionic polyacrylamide is 0.03%～0.01%, and the concentration of anion-polyacrylamide is 0.02%～0.01%; The molecular weight of PAMA is 1,200 ten thousand, and the molecular weight of non-ionic polyacrylamide is 6,000,000.
The present invention proposes a kind of process for treating sludge, adopts two treatment ponds and different mixing speeds, first adopts fastSpeed stirs flocculant and mud Quick uniform is mixed, and then in the second treatment pond, adopts low rate mixing, prevents that floccule body is heavyForm sediment, and can not destroy floccule body, the agglomerate time is short and floc density is high, and floccule body, in suspended state, is conveniently discharged.
After treatment, sludge dewatering is effective for mud, and mud water content is low, comparatively dry, has certain intensity, to mudMound have safely great promotion, mud cake that mud becomes can be used as material the purposes such as brickmaking, has saved landfill requiredLand resource. The muddy water that mud produces after treatment, through water treatment system, can utilize again.
Brief description of the drawings
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, schematic reality of the present inventionExecute example and explanation thereof for explaining the present invention, do not form inappropriate limitation of the present invention. In the accompanying drawings:
Fig. 1 is process for treating sludge of the present invention.
Detailed description of the invention
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the present invention can phaseCombination mutually. Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
As shown in Figure 1, the preferred a kind of process for treating sludge of the present invention, first sends into mud in mud scratch pool, pre-Treatment pond comprises the first treatment pond and the second treatment pond.
In sludge treatment process, first by sludge pumping to the first treatment pond in mud scratch pool, according to necessarilyRatio, inputs to flocculant in the first treatment pond, and flocculant and mud carry out the first rotating speed stirring at the first treatment pond; FirstRotating speed mixing speed adopts rapid stirring principle, and flocculant and mud Quick uniform are mixed, and flocculant and mud are wadded a quilt with cotton fastSolidifying. Rapid stirring principle is to instigate flocculant and mud Quick uniform in the first treatment pond to mix, and is generally that The faster the better.
Mud flow to and in the second treatment pond, carries out the second rotating speed stirring after the first treatment pond has stirred; The second rotating speed stirsThe speed of mixing adopts low rate mixing principle, and therefore, the first rotating speed mixing speed is greater than the second rotating speed mixing speed. Low rate mixing principleThat to instigate in the second treatment pond mud not produce precipitation just passable. Employing friction speed stirs, and can prevent floccule body precipitation,And can not destroy floccule body, the agglomerate time is short and floc density is high, floccule body, in suspended state, is conveniently discharged.
Mud is pumped to filter press and carries out mud-water separation after the second treatment pond has stirred. Filter press produces after finishing dealing withRaw earth is transported by conveyer.
For saving water resource, protection of the environment, solves the filter press muddy water problem producing of finishing dealing with, in skill furtherIn art scheme, the muddy water that filter press produces after finishing dealing with enters water treatment system and processes. Through water treatment system processingThe water completing can be for city domestic water. The mud producing through water treatment system inputs in mud scratch pool againProcess.
In order to make water-oil separating, in technical scheme further, in the first treatment pond, add and have demulsifier, flocculant andMud and demulsifier carry out the first rotating speed stirring at the first treatment pond. In addition, in the water treating pond in water treatment system, addDemulsifier.
In order to produce very little graininess flocculate, make floc density high, obviously, precipitation is rapid, flocculating effect in boundaryGood. According to existing tunnel mud feature, the present invention has prepared special flocculant. Flocculant is by water and anion ppAcid amides and non-ionic polyacrylamide mix. The concentration of non-ionic polyacrylamide is 0.03%～0.01%, 1 literIn water, add the non-ionic polyacrylamide pulvis of 300 milligrams～100 milligrams. The concentration of anion-polyacrylamideBe 0.02%～0.01%, in 1 premium on currency, add the anion-polyacrylamide pulvis of 200 milligrams～100 milligrams. AnionThe molecular weight of polyacrylamide is 1,200 ten thousand, and the molecular weight of non-ionic polyacrylamide is 6,000,000.
The flocculant test data of the present invention's preparation is as follows:
The present invention proposes a kind of process for treating sludge, adopts two treatment ponds and different mixing speed and the wadding of developmentSolidifying agent and sludge treatment flow process, after treatment, sludge dewatering is effective for mud, and mud water content is low, comparatively dry, has certainIntensity, has safely great promotion to the mound of mud, and mud cake that mud becomes can be used as material the purposes such as brickmaking, has savedThe land resource that landfill is required. The muddy water that mud produces after treatment, through water treatment system, can utilize again.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all in essence of the present inventionWithin god and principle, any amendment of doing, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.
Claims (7)
1. a process for treating sludge, is characterized in that, first mud is sent in mud scratch pool, and pretreatment pool comprises firstTreatment pond and the second treatment pond; In sludge pumping to the first treatment pond in mud scratch pool, flocculant is inputed to the first placeIn reason pond, flocculant and mud carry out the first rotating speed stirring at the first treatment pond; Mud flows after the first treatment pond has stirredTo the second treatment pond, carry out the second rotating speed stirring; The first rotating speed mixing speed is greater than the second rotating speed mixing speed, and mud isAfter two treatment ponds have stirred, be pumped to filter press and carry out mud-water separation.
2. process for treating sludge according to claim 1, is characterized in that, the muddy water that filter press produces after finishing dealing with entersEntering water treatment system processes.
3. process for treating sludge according to claim 2, is characterized in that, in the first treatment pond, inputs demulsifier, waddingSolidifying agent and mud and demulsifier carry out the first rotating speed stirring at the first treatment pond.
4. process for treating sludge according to claim 3, is characterized in that, in the water treating pond in water treatment system, addsEnter demulsifier.
5. process for treating sludge according to claim 2, is characterized in that, after water treatment system is finished dealing with, producesMud input in mud scratch pool.
6. process for treating sludge according to claim 1, is characterized in that, the earth that filter press produces after finishing dealing with is logicalCrossing conveyer transports.
7. according to the process for treating sludge described in claim 1 to 6 any one, it is characterized in that, flocculant by water and cloudy fromSub-polyacrylamide and non-ionic polyacrylamide are formulated, and the concentration of non-ionic polyacrylamide is 0.03%～0.01%, the concentration of anion-polyacrylamide is 0.02%～0.01%; The molecular weight of PAMA is1200 ten thousand, the molecular weight of non-ionic polyacrylamide is 6,000,000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610114758.7A CN105585238A (en) | 2016-03-01 | 2016-03-01 | Sludge treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610114758.7A CN105585238A (en) | 2016-03-01 | 2016-03-01 | Sludge treatment method |
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| Publication Number | Publication Date |
|---|---|
| CN105585238A true CN105585238A (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610114758.7A Pending CN105585238A (en) | 2016-03-01 | 2016-03-01 | Sludge treatment method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106915894A (en) * | 2017-05-15 | 2017-07-04 | 沈夏磊 | Compound addition reagent of a kind of mud-water separation and preparation method thereof and application method |
| CN110182829A (en) * | 2019-06-11 | 2019-08-30 | 新疆有色金属研究所 | A kind of industrialized process for preparing of cell-grade anhydrous lithium iodide |
| CN112661386A (en) * | 2020-12-31 | 2021-04-16 | 广东大禹水利建设有限公司 | Reservoir sludge dewatering and curing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101700921A (en) * | 2009-11-26 | 2010-05-05 | 上海复泽环境科技有限公司 | Polymer coagulant |
| CN202016942U (en) * | 2011-04-08 | 2011-10-26 | 中国船舶重工集团公司第七○二研究所 | Fast underwater sludge treatment device |
| CN102372412A (en) * | 2011-09-29 | 2012-03-14 | 常州豪邦纳米科技涂料有限公司 | Sewage dewatering method |
| CN102557218A (en) * | 2011-12-19 | 2012-07-11 | 上海沃杉化工有限公司 | Composite flocculating agent containing various polyacrylamides and preparation method for composite flocculating agent |
| JP2013188721A (en) * | 2012-03-15 | 2013-09-26 | Toshiba Corp | Sludge thickener tank, sludge treatment system, and sludge treatment method |
| CN104788005A (en) * | 2015-04-15 | 2015-07-22 | 大连迈克环境科技工程有限公司 | Method and system for intensely dehydrating excess sludge |
-
2016
- 2016-03-01 CN CN201610114758.7A patent/CN105585238A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101700921A (en) * | 2009-11-26 | 2010-05-05 | 上海复泽环境科技有限公司 | Polymer coagulant |
| CN202016942U (en) * | 2011-04-08 | 2011-10-26 | 中国船舶重工集团公司第七○二研究所 | Fast underwater sludge treatment device |
| CN102372412A (en) * | 2011-09-29 | 2012-03-14 | 常州豪邦纳米科技涂料有限公司 | Sewage dewatering method |
| CN102557218A (en) * | 2011-12-19 | 2012-07-11 | 上海沃杉化工有限公司 | Composite flocculating agent containing various polyacrylamides and preparation method for composite flocculating agent |
| JP2013188721A (en) * | 2012-03-15 | 2013-09-26 | Toshiba Corp | Sludge thickener tank, sludge treatment system, and sludge treatment method |
| CN104788005A (en) * | 2015-04-15 | 2015-07-22 | 大连迈克环境科技工程有限公司 | Method and system for intensely dehydrating excess sludge |
Non-Patent Citations (1)
| Title |
|---|
| 杨作清等: "《钢铁工业水处理实用技术与应用》", 30 June 2015, 冶金工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106915894A (en) * | 2017-05-15 | 2017-07-04 | 沈夏磊 | Compound addition reagent of a kind of mud-water separation and preparation method thereof and application method |
| CN110182829A (en) * | 2019-06-11 | 2019-08-30 | 新疆有色金属研究所 | A kind of industrialized process for preparing of cell-grade anhydrous lithium iodide |
| CN112661386A (en) * | 2020-12-31 | 2021-04-16 | 广东大禹水利建设有限公司 | Reservoir sludge dewatering and curing method |
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Application publication date: 20160518 |
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| RJ01 | Rejection of invention patent application after publication |