CN1227821A - Method for treating sewage - Google Patents
Method for treating sewage Download PDFInfo
- Publication number
- CN1227821A CN1227821A CN 98105039 CN98105039A CN1227821A CN 1227821 A CN1227821 A CN 1227821A CN 98105039 CN98105039 CN 98105039 CN 98105039 A CN98105039 A CN 98105039A CN 1227821 A CN1227821 A CN 1227821A
- Authority
- CN
- China
- Prior art keywords
- sewage
- water
- water conduit
- mud
- baffle
- Prior art date
- 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.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
A process for treating sewage features that conventional flocculant is added to sewage where it is mixed with soft ferromagnetic matter powder, and then the flocculation between them occurs. A high-intensity magnet is installed at lower part of buffering tank. Under the action of magnetic field, the dirt is quickly deposited to separate it from clean water. Its advantages include high effect, high deposition speed of dirt, simple process, low investment on equipment, and low cost.
Description
The invention belongs to the treatment process of sewage, particularly physical treatment process.
Existing sewage water treatment method has varied, but all will pass through dirt and this step of water sepn, and this process need takies more soil, adopts complex apparatus, invests greatlyyer, and the treatment time is longer, the working cost height, and effect is also as one wishes not to the utmost.Though the producer that many generations are polluted has been equipped with waste disposal plant, does not obtain the ideal regulation effect, has also increased production cost, the factory that has closes waste disposal plant often and reduces cost, and has caused the rivers and lakes severe contamination.Chinese patent literature 90100931.8 discloses a kind of technical scheme, as main additive, utilizes its heavy characteristics with magnetite powder, flock together with dirt, and under action of gravity, the sedimentation of accelerate sludge.This scheme can only be used for having with magnetite powder the dirt of strong bonding force; Though settling velocity can be accelerated, be not very desirable, so need to add magnetic field sometimes; Magnetite is after being subjected to the action of a magnetic field, and remanent magnetism is stronger, can not be repeated to use; Granularity requirements to magnetite powder is higher, if too detailed rules and regulations by the dirt holder in the water surface or water middle part, can not realize combination, settlement separate, if too slightly can not combine with dirt is fine again.
The novel method that the purpose of this invention is to provide a kind of sewage disposal, its technology is simple, and suitable polytype sewage can be accelerated the settling velocity of mud greatly, and investment and equipment take up an area of and significantly reduce, and equipment manufacturing cost is low, and working cost is low, and raw material can be reused.
Technical scheme of the present invention is: aspirate sewage with sump pump, suck the mixture of conventional flocculation agent and soft iron magnetic material powder simultaneously in the sump pump ingress; Sewage and described mixture stir through the pump leaf, send into flocculation in the baffle-box; The baffle-box bottom is provided with a water conduit, feeds the bottom of water tank, and magnet is housed at the bottom of the water conduit, and mud group is attracted to sink to the bottom and be discharged in the mud case, and clear water is flow in the clean water basin by water tank top.Above-mentioned soft iron magnetic material can adopt soft magnetic ferrite powder, can evenly clump together in order to make soft ferrite powder, dirt and flocculation agent, and can save the consumption of ferrite powder again, and its granularity is preferably less than 150 orders; The cross section of water conduit should adopt rectangle, so just can load onto conveying belt as demudding device in its underpart, when sewage passes through water conduit, sludge settling is to conveying belt under the action of a magnetic field, the mud of closely knit shape is sent in the mud case, and last available magnet reclaims ferrite powder in the mud that is discharged from.
Start sump pump, sewage and flocculant mixture are entered baffle-box and can obtain good flocculating degree by pump leaf high speed mixing.Because it is water conduit that baffle-box enters unique passage of water tank, how layering of the agglomerating dirt that no matter flocculates, all must flow through water conduit, ferrite powder is subjected to the effect of magnetic field force as the carrier of mud group, so fast tens of times of the settling velocity during the comparable only gravitate of the settling velocity of mud group.Be deposited in mud on the conveying belt and be transferred band and deliver to the mud case, these closely knit mud remain a small amount of remanent magnetism, and the flocculation walk that will be suspended in again in the mud case has attracted, and together falls at the bottom of the case.
Below, structural representation and several specific embodiment of the waste disposal plant that the present invention adopts are provided, its technical scheme is further described.
Each label is represented successively among the figure: charging box 1, charging opening valve 2, sump pump 3, conveying belt 4, magnet 5, water inlet 6, baffle-box 7, water conduit 8, separation dividing plate 9, water tank 10, water outlet 11, brush 12, rotation axis 13, mud case 14, clean water basin 15, mud mouth valve 16, sludge sump 17, sewage lagoon 18, casing 19.
Embodiment 1: water conduit is wide 2 meters, and long 0.3 meter, high 0.03 meter, the water conduit outer bottom is equipped with permanent magnet, and magneticstrength is 3000 Gausses, and sewage is selected the sewage of restaurant's discharging, and sewage water inlet pH value is 6.5,45 ° of colourities, BOD
5Be 149.77, COD
GrBe 395, SS is 1191.5, and effluent stream is crossed speed 0.02 meter per second of water conduit, and the sewage day output is more than 103 tons.With the modification infusorial earth is flocculation agent, consumption be ten thousand of sewage load/, the ferrite powder consumption is 100,000/, granularity is 150 orders, conveying belt speed is 0.01 meter per second, the pH value of handling the back water outlet is 6.71,5 ° of colourities, BOD
5Be 8.19, COD
GrBe 31.7, SS does not detect, and treated water can be recycled or enters the river.Occupation area of equipment required for the present invention is 2 meters
2, highly being 2 meters, 40,000 yuans of facility investments are than save surplus the general expenses summation 20 ten thousand yuans with the conventional method of processing scale.
Embodiment 2: water conduit is wide 2 meters, and long 0.3 meter, high 0.0 3 meters, the water conduit outer bottom is equipped with permanent magnet, and magneticstrength is 5000 Gausses, and sewage selects to enter the sewage (bright logical river, Kunming) in river, and sewage water inlet pH value is 6.95,45 ° of colourities, BOD
5Be 149.53, COD
GrBe 398, SS is 960, and effluent stream is crossed speed 0.02 meter per second of water conduit, and the sewage day output is 103.68 tons.With the polyaluminium sulfate is flocculation agent, consumption be 100,000 of sewage load/, the ferrite powder consumption is 100,000/, granularity is 170 orders, conveying belt speed is 0.01 meter per second, the pH value of handling the back water outlet is 6.72,4 ° of colourities, BOD
5Be 10.58, COD
GrBe 17.6, SS does not detect, and treated water can be recycled or enters the river.Occupation area of equipment required for the present invention is 2 meters
2, highly being 2 meters, 40,000 yuans of facility investments are than save surplus the general expenses summation 20 ten thousand yuans with the conventional method of processing scale.
Embodiment 3: water conduit is wide 2 meters, and long 0.3 meter, high 0.03 meter, the water conduit outer bottom is equipped with permanent magnet, and magneticstrength is 2000 Gausses, and sewage is selected the sewage of paper mill row's quilt, and sewage water inlet pH value is 7.4,9 ° of colourities, BOD
5Be 305.69, COD
GrBe 2812, SS is 1390, and effluent stream is crossed speed 0.02 meter per second of water conduit, and the sewage day output is 103.68 tons.With the modification infusorial earth is flocculation agent, consumption be ten thousand of sewage load/, the ferrite powder consumption is 100,000/, granularity is 200 orders, conveying belt speed is 0.01 meter per second, the pH value of handling the back water outlet is 7.1,4 ° of colourities, BOD
5Be 40.21, COD
GrBe 75.8, SS does not detect, and meets the paper industry sewage drainage standard of national regulation, and treated water can be recycled or enters the river.Occupation area of equipment required for the present invention is 2 meters
2, highly being 2 meters, 40,000 yuans of facility investments are than save surplus the general expenses summation 20 ten thousand yuans with the conventional method of processing scale.
From technique scheme of the present invention, its technical process is simple, the various dissimilar sewage of suitable treatment, can accelerate the settling velocity of mud greatly, investment and equipment occupation of land significantly reduce, and have saved conventional equalizing tank, aeration tank, settling tank, microbial film treating pond, flocculation basin, filtering basin etc., the treatment facility cost that matches with this technology is low, working cost is low, and raw material soft iron magnetic material powder can adopt magnet to separate with mud, reuses.
Claims (2)
1, a kind of sewage disposal novel method is characterized in that processing step is as follows:
Aspirate sewage with sump pump, suck the mixture of conventional flocculation agent and soft iron magnetic material powder simultaneously in the sump pump ingress; Sewage and described mixture stir through the pump leaf, send into flocculation in the baffle-box; The baffle-box bottom is provided with a water conduit, feeds the bottom of water tank, and magnet is housed at the bottom of the water conduit, and mud group is attracted to sink to the bottom and be discharged in the mud case, and clear water is flow in the clean water basin by water tank top.
2, connect the described sewage disposal novel method of claim 1, it is characterized in that described soft iron magnetic material is a soft magnetic ferrite, the granularity of powder is less than 150 orders, and the cross section of water conduit is a rectangle, and conveying belt is equipped with as demudding device in its underpart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98105039 CN1227821A (en) | 1998-03-04 | 1998-03-04 | Method for treating sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98105039 CN1227821A (en) | 1998-03-04 | 1998-03-04 | Method for treating sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1227821A true CN1227821A (en) | 1999-09-08 |
Family
ID=5218657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98105039 Pending CN1227821A (en) | 1998-03-04 | 1998-03-04 | Method for treating sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1227821A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102378A (en) * | 2011-01-06 | 2011-06-22 | 大连理工大学 | Energy-saving rainwater harvesting device capable of quantitative observing |
| CN102329039A (en) * | 2011-08-25 | 2012-01-25 | 杭州银江环保科技有限公司 | Mud-water separation system |
| CN104402099A (en) * | 2014-11-07 | 2015-03-11 | 中煤张家口煤矿机械有限责任公司 | Magnetic accelerator for efficient water purification |
| NL2017443B1 (en) * | 2016-09-09 | 2018-03-15 | Mhd Tech B V | Device and method for magnetic separation |
-
1998
- 1998-03-04 CN CN 98105039 patent/CN1227821A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102378A (en) * | 2011-01-06 | 2011-06-22 | 大连理工大学 | Energy-saving rainwater harvesting device capable of quantitative observing |
| CN102102378B (en) * | 2011-01-06 | 2012-11-21 | 大连理工大学 | Energy-saving rainwater harvesting device capable of quantitative observing |
| CN102329039A (en) * | 2011-08-25 | 2012-01-25 | 杭州银江环保科技有限公司 | Mud-water separation system |
| CN104402099A (en) * | 2014-11-07 | 2015-03-11 | 中煤张家口煤矿机械有限责任公司 | Magnetic accelerator for efficient water purification |
| NL2017443B1 (en) * | 2016-09-09 | 2018-03-15 | Mhd Tech B V | Device and method for magnetic separation |
| WO2018048304A1 (en) * | 2016-09-09 | 2018-03-15 | Mhd Technologies B.V. | Device and method for magnetic separation |
| CN109843444A (en) * | 2016-09-09 | 2019-06-04 | Mhd科技有限公司 | Device and method for Magneto separate |
| CN109843444B (en) * | 2016-09-09 | 2021-02-02 | Mhd科技有限公司 | Device and method for magnetic separation |
| US11027288B2 (en) | 2016-09-09 | 2021-06-08 | Mhd Technologies B.V. | Device and method for magnetic separation |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |