CN217127114U - Oil removal, slag removal and solid removal coupling reaction device for wastewater - Google Patents
Oil removal, slag removal and solid removal coupling reaction device for wastewater Download PDFInfo
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- CN217127114U CN217127114U CN202123283797.5U CN202123283797U CN217127114U CN 217127114 U CN217127114 U CN 217127114U CN 202123283797 U CN202123283797 U CN 202123283797U CN 217127114 U CN217127114 U CN 217127114U
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Abstract
The utility model discloses a deoiling of waste water, slagging-off and remove solid coupling reaction unit, include: the first reactor comprises an air flotation reaction area, a feed inlet, an air inlet, a slag scraping and defoaming unit and a clear liquid collecting unit, wherein the feed inlet and the air inlet are respectively communicated with the bottom of the air flotation reaction area, wastewater enters the air flotation reaction area through the feed inlet, pressure gas is input into the air flotation reaction area through the air inlet to form micro bubbles, the slag scraping and defoaming unit can scrape and defoam the wastewater in the air flotation reaction area, and the clear liquid collecting unit can collect clear liquid of the wastewater after slag scraping and defoaming; and the second reactor comprises a solid-liquid separation unit, the solid-liquid separation unit is connected with the air floatation reaction area, and the solid-liquid separation unit can carry out solid-liquid separation on the clear wastewater liquid treated in the air floatation reaction area. The utility model has the advantages of good treatment effect, low cost, simple process, etc.
Description
Technical Field
The utility model relates to a coal chemical industry waste water technical field especially relates to a deoiling of waste water, slagging-off and remove solid coupling reaction unit.
Background
Coal chemical industry uses coal as a raw material to produce and process related chemical products, and waste water is generated in the chemical process. The wastewater is mainly produced from three processes of coal gasification, coal liquefaction and coal coking, and mainly comprises heterocyclic organic pollutants (alkane, olefin, polycyclic aromatic hydrocarbon and the like), inorganic pollutants (ammonia nitrogen, sulfide, fluoride and the like), foaming oily substances (polycyclic aromatic hydrocarbon, long-chain aliphatic hydrocarbon and the like), high-toxicity substances (phenol, cyanide sulfide and the like), various coloring groups and the like. The three processes and the related core production processes are different, the produced wastewater can be classified into the five main pollutants, and the components and the contents of the wastewater have differences; the coal chemical wastewater is characterized in that: large discharge amount and large water quality change; high, high concentration, high chroma, high COD and BOD content; toxic, strong biological toxicity, difficult biochemical degradation.
The coal chemical industry wastewater is generally treated by three stages of physical and chemical treatment, biochemical treatment, advanced treatment and the like. In the physicochemical treatment, an oil separation tank (oil substances), an air floatation tank (oil or suspended matters with low density) and a coagulating sedimentation tank (suspended matters and colloid substances) are used for realizing the treatment, and the technology for removing the efficient air floatation and foam-causing substances for effectively separating the oil is lacked; in the biochemical treatment link, organic matters and nitrogen compounds are removed, wherein the biochemical treatment link comprises an anoxic-aerobic denitrification process, an anaerobic-anoxic-aerobic process, a sequencing batch activated sludge process, an oxidation ditch process, a biological moving bed reactor and other processes, and the biochemical treatment effect is unstable due to unstable treatment of strong biological toxic substances in physicochemical treatment; in the aspect of advanced treatment, effective application is realized by means of ozone oxidation, chemical oxidation, a biological aerated filter, activated carbon and the like;
in the aspect of pretreatment of coal chemical wastewater, the wastewater usually contains phenolic organic matters, and phenol can be removed by phenol adsorption treatment or extraction method by adopting an adsorption material. By combining the analysis of the wastewater condition of the coal chemical industry enterprises, the oil substances coated on the surface of the wastewater can have certain influence on the later treatment of the coal chemical industry wastewater, and the oil substances can be effectively removed by using an air floatation method or an oil separation tank method.
The existing production facilities generate high concentration, complex components and high treatment difficulty of wastewater, the existing wastewater treatment facilities are difficult to meet the requirements of wastewater treatment, and the wastewater treatment facilities have high updating and updating investment, so that the application of the wastewater treatment technology has difficulty, the investment is low, the construction is fast, and the technology and the product which can make up the defects of the existing wastewater treatment facilities are good technology and product development directions; the actual effect of the prior wastewater pretreatment (deacidification, extraction and deamination) is not obvious, and the difficulty of subsequent physicochemical and biochemical treatment, especially physicochemical treatment, is increased.
In a word, the coal chemical industry is taken as the traditional industry, the configuration of the environmental protection facility has certain difference with the latest environmental protection emission requirement, the problems of backward pretreatment technology, single treatment technology, large investment, high treatment cost and the like generally exist, and the treatment capacity of the physical and chemical treatment section is strengthened to increase the broad-spectrum applicable technology combination; based on the existing production process and wastewater treatment process, the combination of physicochemical section technologies is further strengthened, and the defects of preoperative pretreatment are made up and solved; through smaller infrastructure scale and modular construction, the operation of the existing system is not influenced, and the development of the technology and the product with small investment intensity and reasonable operation cost are the realistic choice for the process optimization of the coal chemical industry wastewater physicochemical section.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above technical problems, it is necessary to provide a coupling reaction apparatus for removing oil, slag and solids of wastewater with good treatment effect and low cost.
The utility model provides an deoiling of waste water, slagging-off and remove solid coupling reaction unit, includes:
the first reactor comprises an air flotation reaction area, a feed inlet, an air inlet, a slag scraping and defoaming unit and a clear liquid collecting unit, wherein the feed inlet and the air inlet are respectively communicated with the bottom of the air flotation reaction area, wastewater enters the air flotation reaction area through the feed inlet, pressure gas is input into the air flotation reaction area through the air inlet to form micro bubbles, the slag scraping and defoaming unit can scrape and defoam the wastewater in the air flotation reaction area, and the clear liquid collecting unit can collect clear liquid of the wastewater after slag scraping and defoaming;
and the second reactor comprises a solid-liquid separation unit, the solid-liquid separation unit is connected with the air floatation reaction area, and the solid-liquid separation unit can carry out solid-liquid separation on the clear wastewater liquid treated in the air floatation reaction area.
In one embodiment, the slag scraping and foam removing unit comprises:
the scum collecting area is connected with the air floatation reaction area;
the scum scraper and the first demister are arranged above the water surface of the air floatation reaction area and can collect and treat foam or scum in a scum collecting area.
In one embodiment, the supernatant collecting unit includes:
the first clear liquid collecting area is communicated with the air floatation reaction area;
and the second clear liquid collecting area is communicated with the first clear liquid collecting area, the clear liquid of the wastewater in the first clear liquid collecting area enters the second clear liquid collecting area in an overflowing mode, and a liquid outlet is formed in the bottom of the second clear liquid collecting area.
In one embodiment, the solid-liquid separation unit comprises a lower water collecting area, a membrane filtering area and an upper water collecting area which are arranged from bottom to top in sequence;
the bottom of the lower water collecting area is communicated with the liquid outlet through a liquid inlet, the lower water collecting area is provided with a first medicine inlet and a second medicine inlet, and the first medicine inlet and the second medicine inlet are respectively used for feeding H 2 O 2 And a ferrous iron reagent is added to the lower water collection area;
the membrane filtration zone is internally provided with a soft sheet membrane which can carry out solid-liquid separation on the waste water clear liquid, the filtered water flows out from the water outlet, the unfiltered waste water clear liquid flows out from the overflow port of the upper water collection zone, and the overflow port is connected with the recovery port.
In one embodiment, the upper water collecting region is further connected to a second demister, a cleaning water inlet and a reactor breathing port, respectively.
In one embodiment, the bottoms of the air floatation reaction area and the lower water collecting area are respectively communicated with a first sewage discharge port and a second sewage discharge port.
The oil removal, slag removal and solid removal coupling reaction device for the wastewater carries out slag removal and foam removal on the wastewater in the air floatation reaction area through the slag removal and foam removal unit, and has obvious removal effect on residual oils, foaming organic matters, particulate matters and the like in the wastewater; then, the waste water clear solution is carried the solid-liquid separation in the solid-liquid separation unit after being collected by the clear solution collecting unit, and the VOCs release minimizing in its processing procedure, tail gas treatment is oversimplified, just the utility model discloses still have advantages such as treatment effect is good, with low costs, simple process.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the apparatus for removing oil, slag and solids from wastewater.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, an embodiment of the present invention provides an apparatus for removing oil, slag and solids from waste water, including:
the first reactor comprises an air flotation reaction area 1, a feed inlet 6, an air inlet 7, a slag scraping and defoaming unit and a clear liquid collecting unit, wherein the feed inlet 6 and the air inlet 7 are respectively communicated with the bottom of the air flotation reaction area 1, wastewater enters the air flotation reaction area 1 through the feed inlet 6, pressure gas is input into the air flotation reaction area 1 through the air inlet 7 to form micro bubbles, the slag scraping and defoaming unit can scrape and defoam the wastewater in the air flotation reaction area 1, and the clear liquid collecting unit can collect clear liquid of the wastewater after slag scraping and defoaming;
and the second reactor comprises a solid-liquid separation unit, the solid-liquid separation unit is connected with the air floatation reaction area 1, and the solid-liquid separation unit can carry out solid-liquid separation on the clear wastewater liquid treated by the air floatation reaction area 1.
The device for the oil removal, slag removal and solid removal coupling reaction of the wastewater scrapes and removes the foam of the wastewater in the air flotation reaction area 1 through the slag scraping and foam removing unit, and has an obvious effect of removing residual oils, foaming organic matters, particles and the like in the wastewater; then, the waste water clear solution is carried the solid-liquid separation in the solid-liquid separation unit after being collected by the clear solution collecting unit, and the VOCs release minimizing in its processing procedure, tail gas treatment is oversimplified, just the utility model discloses still have advantages such as treatment effect is good, with low costs, simple process.
In an embodiment of the present invention, the slag scraping and foam removing unit includes:
a scum collecting area 2 which is connected with the air floatation reaction area 1;
the device comprises a slag scraper 3 and a first demister 8, wherein the slag scraper 3 and the first demister 8 are arranged above the water surface of the air floatation reaction area 1, and the slag scraper 3 and the first demister 8 can collect and treat foam or scum in a scum collecting area 2. In this embodiment, the first demister 8 may be a suction cup or the like, and the equivalent suction capacity of the suction cup is 1.5 to 3 times of the ventilation capacity of the gas. The slag scraper 3 may be a rotating deflector rod or the like.
In an embodiment of the present invention, the clear liquid collecting unit includes:
the first clear liquid collecting area 4 is communicated with the air floatation reaction area 1;
the second clear liquid collecting area 5 is communicated with the first clear liquid collecting area 4, and the clear liquid of the waste water in the first clear liquid collecting area 4 enters the second clear liquid collecting area 5 in an overflowing mode, so that the middle part and the bottom of the first clear liquid collecting area 4 can also continue to precipitate impurities such as particles, and the purity of the clear liquid of the waste water is improved.
Wherein, the bottom of the second clear liquid collecting area 5 is provided with a liquid outlet 9. The clear wastewater liquid in the second clear water collecting area 5 can flow out from the liquid outlet 9.
In an embodiment of the present invention, the solid-liquid separation unit includes a lower water collecting area 12, a membrane filtering area 13 and an upper water collecting area 14, which are sequentially arranged from bottom to top;
the bottom of the lower water collecting area 12 is communicated with the liquid outlet 9 through a liquid inlet 11, the lower water collecting area 12 is provided with a first medicine inlet 16 and a second medicine inlet 17, and the first medicine inlet 16 and the second medicine inlet 17 are respectively used for feeding H 2 O 2 And a ferrous agent is added to the lower sump region 12; h 2 O 2 And the ferrous iron medicament can further carry out reaction purification on the clear liquid of the wastewater.
The membrane filtering area 13 is internally provided with a soft sheet membrane which can carry out solid-liquid separation on the waste water clear liquid, the filtered water flows out from the water outlet 21, the unfiltered waste water clear liquid flows out from the overflow port 15 of the upper water collecting area 14, and the overflow port 15 is connected with the recovery port 23. Optionally, the film membrane is provided with an aeration system, which can perform aeration during the filtration process, thereby improving the filtration efficiency.
In one embodiment of the present invention, the upper water collecting region 14 is further connected to a second demister 18, a cleaning water inlet 19 and a reactor breathing port 20, respectively. In this embodiment, the second demister 18 can remove foam or scum from the wastewater supernatant in the upper collection area 14; the cleaning water inlet 19 can be used for receiving clean water to clean the interior of the second reactor; the reactor breathing port 20 is used to adjust the internal gas pressure of the second reactor.
In an embodiment of the present invention, the bottoms of the air flotation reaction region 1 and the lower water collecting region 12 are respectively communicated with the first sewage draining outlet 10 and the second sewage draining outlet 22.
The utility model discloses a theory of operation as follows:
the coal chemical industry wastewater treated by the pretreatment section enters an air floatation reaction area 1 of a first reactor from a feed inlet 6, air with certain pressure enters the air floatation reaction area 1 from an air inlet 7 in a micro-bubble mode, and oil and foaming organic matters enter a scum collecting area 2 in a scum or scum form under the combined action of a scum scraper 3 and a first demister 8 above the water surface of the air floatation reaction area 1 to be collected and treated;
the air flotation reaction area 1 is communicated with the first clear liquid collecting area 4 and the second clear liquid collecting area 5, the first clear liquid collecting area 4 after oil removal and foam removal enters the second clear liquid collecting area 5 in an overflow mode, and effluent flows out through the liquid outlet 9 and enters the lower water collecting area 12 of the second reactor through the liquid inlet 11 of the reactor;
H 2 O 2 and ferrous iron medicament are respectively added from a first medicament inlet 16 and a second medicament inlet 17 at the bottom of the second reactor, and after the Fenton reaction, the effluent passes throughThe solid-liquid separation in the membrane filtration zone 13 is carried out, and then the water flows out from the water outlet 21, and meanwhile, the water which is not treated in time flows out from the overflow port 15 of the upper water collecting zone 14 and is collected through the recovery port 23.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-described examples merely represent several embodiments of the present application and are not to be construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. The utility model provides an deoiling of waste water, slagging-off and remove solid coupling reaction unit which characterized in that includes:
the first reactor comprises an air flotation reaction area (1), a feed inlet (6), an air inlet (7), a slag scraping and defoaming unit and a clear liquid collecting unit, wherein the feed inlet (6) and the air inlet (7) are respectively communicated with the bottom of the air flotation reaction area (1), wastewater enters the air flotation reaction area (1) through the feed inlet (6), pressure gas is input into the air flotation reaction area (1) through the air inlet (7) to form micro bubbles, the slag scraping and defoaming unit can scrape and defoam the wastewater in the air flotation reaction area (1), and the clear liquid collecting unit can collect clear wastewater liquid after slag scraping and defoaming;
and the second reactor comprises a solid-liquid separation unit, the solid-liquid separation unit is connected with the air floatation reaction area (1), and the solid-liquid separation unit can carry out solid-liquid separation on the clear wastewater treated by the air floatation reaction area (1).
2. The apparatus for coupling reaction of oil removal, slag removal and solidification removal of wastewater according to claim 1, wherein the slag scraping and foam removing unit comprises:
the scum collecting area (2) is connected with the air floatation reaction area (1);
the floating air flotation device comprises a slag scraper (3) and a first demister (8), wherein the slag scraper (3) and the first demister (8) are arranged above the water surface of the air flotation reaction area (1), and the slag scraper (3) and the first demister (8) can collect and treat foam or scum in a scum collecting area (2) in a conveying mode.
3. The apparatus for removing oil, slag and solids of wastewater according to claim 1, wherein the clear liquid collecting unit comprises:
the first clear liquid collecting area (4) is communicated with the air floatation reaction area (1);
and the second clear liquid collecting area (5) is communicated with the first clear liquid collecting area (4), the clear liquid of the wastewater in the first clear liquid collecting area (4) enters the second clear liquid collecting area (5) in an overflowing manner, and a liquid outlet (9) is formed in the bottom of the second clear liquid collecting area (5).
4. The apparatus for removing oil, slag and solids of wastewater according to claim 3, wherein the solid-liquid separation unit comprises a lower water collecting zone (12), a membrane filtration zone (13) and an upper water collecting zone (14) arranged in sequence from bottom to top;
the bottom of lower part water catch zone (12) through inlet (11) with liquid outlet (9) are linked together, just lower part water catch zone (12) are equipped with first medicine mouth (16) and second and advance medicine mouth (17), first medicine mouth (16) and second advance medicine mouth (17) and are used for H respectively 2 O 2 And a ferrous agent is added to the lower water collection zone (12);
the inside of membrane filtration district (13) is equipped with the film, the film can carry out solid-liquid separation to waste water clear solution, and the water after the filtration flows out by delivery port (21), and unfiltered waste water clear solution flows out through overflow mouth (15) of upper portion sump area (14), overflow mouth (15) are connected with recovery mouth (23).
5. The apparatus for coupling reaction of oil removing, slag removing and solidification removing of wastewater as claimed in claim 4, wherein the upper water collecting region (14) is further connected with a second demister (18), a washing water inlet (19) and a reactor breathing port (20), respectively.
6. The apparatus for removing oil, slag and solids of wastewater according to claim 5, wherein the bottoms of the air flotation reaction zone (1) and the lower water collection zone (12) are respectively communicated with the first drain outlet (10) and the second drain outlet (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123283797.5U CN217127114U (en) | 2021-12-24 | 2021-12-24 | Oil removal, slag removal and solid removal coupling reaction device for wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123283797.5U CN217127114U (en) | 2021-12-24 | 2021-12-24 | Oil removal, slag removal and solid removal coupling reaction device for wastewater |
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| Publication Number | Publication Date |
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| CN217127114U true CN217127114U (en) | 2022-08-05 |
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| CN202123283797.5U Active CN217127114U (en) | 2021-12-24 | 2021-12-24 | Oil removal, slag removal and solid removal coupling reaction device for wastewater |
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| CN (1) | CN217127114U (en) |
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