CN209456261U - A kind of hazardous waste processing center waste water treatment system - Google Patents
A kind of hazardous waste processing center waste water treatment system Download PDFInfo
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- CN209456261U CN209456261U CN201921157550.9U CN201921157550U CN209456261U CN 209456261 U CN209456261 U CN 209456261U CN 201921157550 U CN201921157550 U CN 201921157550U CN 209456261 U CN209456261 U CN 209456261U
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Abstract
The utility model discloses a kind of hazardous waste processing center waste water treatment systems, including sequentially connected flotation tank, pH conditioning tank, heavy metal depth settling tank, coagulating basin, denitrification pond, DC biological aerated filter, sand filter, active carbon filter and sterilizing pond, the flotation tank water inlet is equipped with grid, the pH conditioning tank is equipped with alkali tank, the heavy metal depth settling tank is equipped with organic sulfur grug feeding jar, the coagulating basin is equipped with coagulant tank, the denitrification pond is equipped with carbon source and adds tank, the utility model passes through setting coagulating basin, denitrification pond, DC biological aerated filter and the sterilizing pond for using ozone, by using coagulation, add carbon source, the means such as denitrification and ozone oxidation, improve the biodegradability of waste water, by the way that pH conditioning tank is arranged, heavy metal depth settling tank and active carbon filter Remove the heavy metal in waste water.
Description
Technical field
The utility model relates to technical field of waste water processing, and in particular to a kind of hazardous waste processing center waste water treatment system.
Background technique
Dangerous waste disposal center waste water be mainly derived from haulage vehicle and flushing water, temporary library draining, laboratory draining,
Place water, the draining of materializing strategy workshop, percolate and sanitary sewage are rinsed, since dangerous waste increases year by year, hazardous waste processing center is produced
Raw waste water is also more and more, while there is dangerous waste disposition central waste high content of beary metal, water quality and water to fluctuate big, pollution
Object complicated component, biodegradability are poor, contain the features such as poisonous and harmful substance, it is therefore necessary to be distinguished to it with Conventional waste water
Processing.
Dangerous waste disposition central waste major pollutants include suspended matter, ammonia nitrogen, petroleum-type, vegetable and animals oils, other organic matters,
Heavy metal ion etc..It is influenced by dangerous waste disposal center material source and processing waste type, water quality and water fluctuation
Greatly, biodegradability is poor, and 204151203 U of Chinese patent CN discloses a kind of dangerous waste disposal center waste water treatment system,
The processing system combined using physical-chemical craft with biological effluent treatment technique, so that the waste water at dangerous waste disposition center obtains
Processing has been arrived, but has not considered the problem of wastewater biodegradability difference in the patent, has not improved the biodegradability of waste water, and its is right
The processing means of heavy metal ion are less.
Utility model content
In view of the above technical problem, the purpose of this utility model is to provide a kind of hazardous waste processing center wastewater treatment systems
System improves the biodegradability of waste water, while carrying out depth to the heavy metal ion of waste water in such a way that multiple means combine
Removing.
The utility model uses following technical scheme are as follows:
A kind of hazardous waste processing center waste water treatment system, including processing system and auxiliary system；
The processing system includes sequentially connected flotation tank, pH conditioning tank, heavy metal depth settling tank, coagulating basin, anti-
Nitrification tank, DC biological aerated filter, sand filter, active carbon filter and sterilizing pond, the flotation tank front end are equipped with grid, institute
PH conditioning tank is stated equipped with alkali tank, the alkali added not only changes the pH for adjusting waste water, while under alkaline environment, big in sewage
Part heavy metal precipitates, and the flotation tank water outlet and pH conditioning tank water outlet are additionally provided with pH on-line computing model, described
Heavy metal depth settling tank is equipped with organic sulfur grug feeding jar, and organic sulfur is for removing the huge sum of money for being not easy to remove under alkaline condition
Belong to, such as cadmium, the coagulating basin is equipped with coagulant tank, and the denitrification pond is equipped with carbon source and adds tank, and the carbon source of addition is not
It only can be used as denitrifying raw material, while the biodegradability of waste water can also be improved, so that DC biological aerated filter is more easier
Processing further removes the various trace impurities such as particle in waste water to the organic matter in waste water, sand filter and active carbon filter
Object, organic matter and heavy metal etc.；
The auxiliary system includes sludge pump, sludge-tank, pressure filter, ozone generator and blower, the pH conditioning tank, again
Metal depth settling tank and coagulating basin are equipped with sludge pump, and the sludge pump connects sludge-tank, and the sludge in the sludge-tank is logical
It crosses sludge pump and is delivered to pressure filter, the pressure filter filtrate returns to flotation tank water inlet, due to containing oil slick, organic matter in filter residue
With the hazardous wastes such as heavy metal, therefore filter residue is sent to incinerator by trolley and is burned, the filter residue after burning is filled, described
Ozone generator outlet pipe is communicated in the distributor of sterilizing bottom of pond portion, and ozone not only can be to the water in sterilizing pond
Carry out disinfection sterilization, at the same can also to there may be and the organic matter that fails to decompose completely decompose, further reduce water
The content of middle COD, gas source of the blower as flotation tank and DC biological aerated filter.
Further, the flotation tank is equipped with the pipeline of connection sludge-tank, and the sludge on flotation tank is arranged by the pipeline
To sludge-tank.
Compared with prior art, the utility model has the beneficial effects that:
1, by setting coagulating basin, denitrification pond, DC biological aerated filter and the sterilizing pond for using ozone, by adopting
With coagulation, the means such as carbon source, denitrification and ozone oxidation are added, improve the biodegradability of waste water, reduce DC aeration life
The processing difficulty in object filter tank.
2, heavy metal, the organic sulfur settled by alkaline condition in waste water settles the huge sum of money that cannot be settled under alkaline condition
Belong to, activated carbon adsorption the above two heavy metals that cannot handle, the heavy metal in waste water is removed completely, while avoiding because of one
As waste water the drawbacks of COD is increased caused by the ferrous ion that adds when removing chromium.
Detailed description of the invention
Fig. 1 is the utility model overall schematic；
In figure, 1 is flotation tank, and 2 be pH conditioning tank, and 3 attach most importance to metal depth settling tank, and 4 be coagulating basin, and 5 be denitrification pond,
6 be DC biological aerated filter, and 7 be sand filter, and 8 be active carbon filter, and 9 be sterilizing pond, and 10 be sludge-tank, and 11 be sludge
Pump, 12 be filter press, and 13 be trolley, and 14 be blower, and 15 be pH on-line computing model, and 16 be organic sulfur tank, and 17 be coagulant tank, 18
Tank is added for carbon source, 19 be ozone generator, and 20 be treated water outlet, and 21 be distributor, and 22 be grid, and 23 be alkali tank.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the utility model, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
Embodiment:
A kind of hazardous waste processing center waste water treatment system, including processing system and auxiliary system, processing system include successively
The flotation tank 1 of connection, pH conditioning tank 2, heavy metal depth settling tank 3, coagulating basin 4, denitrification pond 5, DC biological aerated filter 6,
Sand filter 7, active carbon filter 8 and sterilizing pond 9,1 front end of flotation tank are equipped with grid 22, and pH conditioning tank 2 is equipped with alkali tank 23,
1 water outlet of flotation tank and 2 water outlet of pH conditioning tank are additionally provided with pH on-line computing model 15, and heavy metal depth settling tank 3 has
Machine sulphur grug feeding jar 16, coagulating basin 4 are equipped with coagulant tank 17, and denitrification pond 5 is equipped with carbon source and adds tank 18, active carbon filter 8
It is filtered using two-stage active carbon, the interior different compositions of filling and varigrained active carbon targetedly adsorb remaining in waste water
Remaining heavy metal ion；
Auxiliary system includes sludge pump 11, sludge-tank 10, pressure filter 12, ozone generator 19, blower 14 and trolley 13, pH
Conditioning tank 2, heavy metal depth settling tank 3 and coagulating basin 4 are equipped with sludge pump 10, and sludge pump 11 connects sludge-tank 10, flotation tank 1
It is equipped with the pipeline of connection sludge-tank 10, the sludge in sludge-tank 10 is delivered to pressure filter 12, pressure filter 12 by sludge pump 11
Filtrate returns to 1 water inlet of flotation tank, and 19 outlet of ozone generator is communicated in the distributor 21 of 9 bottom of sterilizing pond, wind
Gas source of the machine 14 as flotation tank 1 and DC biological aerated filter 14.
The utility model process for using is as follows:
1, waste water enters flotation tank 1, the large granular impurity in waste water is filtered out when passing through grid 22, and in flotation tank 1
It is interior by being constantly aerated except degreasing and small granular suspended matters；
2, the water outlet of flotation tank 1 enters pH conditioning tank 2, is determined according to the pH that the pH and pH conditioning tank 2 that flotation tank 1 exports exports
Add the amount of alkali, it is preferred that alkali source is made using calcium hydroxide, not only cheaply, simultaneously because it contains calcium ion, when sludge send to
After incinerator burns, partial oxidation calcium is contained in remaining clinker, is conducive to solidified forming of the clinker before landfill, adjusted in pH
Most of heavy metal in waste water is removed in pond 2；
3, the water outlet of pH conditioning tank 2 enters heavy metal depth settling tank 3, under the action of organic sulfur, in the pond in waste water
The sedimentation such as remaining heavy metal ion such as cadmium, mercury；
4, the water outlet of heavy metal depth settling tank 3 enters in coagulating basin 4, will not sink completely in above-mentioned several steps in waste water
The small granular suspended matters in shallow lake settle down, and remove the part coloration of waste water, at the same coagulation process also can be improved waste water can
Biochemical；
5, the water outlet of coagulating basin 4 enters denitrification pond 5 and is removed in the pond by adding carbon source, preferably cerelose
Ammonia nitrogen in waste water；
6, the water outlet of denitrification pond 5 enters DC biological aerated filter 6, and the denitrification process and additional carbon in denitrification pond mention
The high biodegradability of waste water, is mainly used for removing the COD and BOD in waste water5；
7, DC biological aerated filter 6 enters sand filter 7, and the water outlet of sand filter 7 enters activated carbon filter 8, mainly removes waste water
In remaining oligodynamical object, wherein activated carbon filter use double-filtration, moreover it is possible to remove the coloration of waste water and in front end
Process fails heavy metal ion such as chromium removed etc.；
8, the water outlet of activated carbon filter 8 enters sterilizing pond, and in the pond, ozone can not only carry out disinfection to waste water and kill
Bacterium, while can also further decompose and fail the not biochemical organic matter decomposed completely in DC biological aerated filter 6, thus into one
Step reduces the COD of waste water, and treated, and purified water is discharged from treated water outlet；
9, in entire wastewater treatment process, flotation tank 1, pH conditioning tank 2, heavy metal depth settling tank 3 and coagulating basin 4 can be produced
Sludge out, sludge enter sludge-tank 10 by sludge pump 11 or pipeline, then after 12 filters pressing of filter press, filtrate, which is returned, drains into flotation tank
1, filter residue is sent through trolley 13 to incinerator, filter residue, that is, plastic landfill after burning.
In summary, giving birth to for waste water is improved in terms of several when the waste water at the utility model processing dangerous waste disposition center
The property changed, while the impurity in waste water such as suspended particulate, heavy metal ion, ammonia nitrogen and organic matter being removed, purified water water quality can
Reach " urban sewage reutilization urban reclaimed water water quality " (GB/T 18920-2002) and " integrated wastewater discharge standard " (GB
8978-1996) primary standard.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection of the utility model claims
Within the scope of.
Claims (4)
1. a kind of hazardous waste processing center waste water treatment system, which is characterized in that including processing system and auxiliary system；
The processing system includes sequentially connected flotation tank, pH conditioning tank, heavy metal depth settling tank, coagulating basin, denitrification
Pond, DC biological aerated filter, sand filter, active carbon filter and sterilizing pond, the flotation tank front end are equipped with grid, the pH
Conditioning tank is equipped with alkali tank, and the heavy metal depth settling tank is equipped with organic sulfur grug feeding jar, and the coagulating basin is equipped with coagulation
Agent tank, the denitrification pond are equipped with carbon source and add tank；
The auxiliary system includes sludge pump, sludge-tank, pressure filter, ozone generator and blower, the pH conditioning tank, heavy metal
The bottom of depth settling tank and coagulating basin is equipped with sludge pump, and the sludge pump connects sludge-tank, the sludge in the sludge-tank
It is delivered to pressure filter by sludge pump, the pressure filter filtrate returns to flotation tank water inlet, and trolley is equipped with by pressure filter, described smelly
Oxygen Generator outlet is connected to sterilizing pond, gas source of the blower as flotation tank and DC biological aerated filter.
2. a kind of hazardous waste processing center waste water treatment system according to claim 1, which is characterized in that the flotation tank goes out
The mouth of a river and pH conditioning tank water outlet are additionally provided with pH on-line computing model.
3. a kind of hazardous waste processing center waste water treatment system according to claim 1, which is characterized in that the sterilizing
Bottom of pond portion is equipped with the distributor of connection ozone generator outlet pipe.
4. a kind of hazardous waste processing center waste water treatment system according to claim 1, which is characterized in that on the flotation tank
Pipeline equipped with connection sludge-tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921157550.9U CN209456261U (en) | 2019-07-23 | 2019-07-23 | A kind of hazardous waste processing center waste water treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921157550.9U CN209456261U (en) | 2019-07-23 | 2019-07-23 | A kind of hazardous waste processing center waste water treatment system |
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| CN209456261U true CN209456261U (en) | 2019-10-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112811727A (en) * | 2020-12-31 | 2021-05-18 | 北京邦源环保科技股份有限公司 | Comprehensive sewage treatment process |
-
2019
- 2019-07-23 CN CN201921157550.9U patent/CN209456261U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112811727A (en) * | 2020-12-31 | 2021-05-18 | 北京邦源环保科技股份有限公司 | Comprehensive sewage treatment process |
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