CN114590929A - Sewage-discharge-free circulating cooling water bypass flow treatment method - Google Patents
Sewage-discharge-free circulating cooling water bypass flow treatment method Download PDFInfo
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- CN114590929A CN114590929A CN202210291124.4A CN202210291124A CN114590929A CN 114590929 A CN114590929 A CN 114590929A CN 202210291124 A CN202210291124 A CN 202210291124A CN 114590929 A CN114590929 A CN 114590929A
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- 239000000498 cooling water Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 101
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000010865 sewage Substances 0.000 claims abstract description 32
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 238000004062 sedimentation Methods 0.000 claims abstract description 16
- 238000000746 purification Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000003860 storage Methods 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 239000013049 sediment Substances 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 6
- 241001330002 Bambuseae Species 0.000 claims description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 6
- 239000011425 bamboo Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000003245 coal Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 230000003204 osmotic effect Effects 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000000701 coagulant Substances 0.000 claims description 3
- 238000005189 flocculation Methods 0.000 claims description 3
- 230000016615 flocculation Effects 0.000 claims description 3
- 239000007800 oxidant agent Substances 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 238000001223 reverse osmosis Methods 0.000 claims description 3
- 239000008399 tap water Substances 0.000 claims description 3
- 235000020679 tap water Nutrition 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 241000195493 Cryptophyta Species 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 241001483116 Neopicrorhiza scrophulariiflora Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013270 controlled release Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000011118 depth filtration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005111 flow chemistry technique Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/002—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using inserts or attachments
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/01—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using means for separating solid materials from heat-exchange fluids, e.g. filters
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/04—Oxidation reduction potential [ORP]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Chemical & Material Sciences (AREA)
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Abstract
The invention discloses a sewage-discharge-free circulating cooling water by-pass flow treatment method, which comprises the following steps: step 1, water in a circulating cooling water system enters a circulating pipeline through a circulating pump, passes through a heat exchanger and is conveyed into a cooling tower; step 2, feeding the circulating water into a multi-media filter for filtering; step 3, introducing part of the filtered cooling water into an ozone reaction tower, introducing ozone, and standing for a period of time to form a high-concentration ozone water solution which is merged into a reservoir; step 4, leading the rest most of cooling water into a water storage tank at the same time; step 5, sending the sewage into a sedimentation tank for preliminary sedimentation, and cleaning sediment at the bottom of the sedimentation tank; and 6, recovering and sending the upper layer sewage of the sedimentation tank to a sewage purification tank. The non-drainage circulating cooling water bypass flow treatment method can effectively purify cooling water, effectively improve the concentration rate of circulating water, reduce the discharge amount of circulating water, effectively save water resources, has simple operation steps and is suitable for popularization and use.
Description
Technical Field
The invention relates to the field of sewage treatment related products, in particular to a sewage-discharge-free circulating cooling water by-pass flow treatment method.
Background
The circulating cooling water system is a water supply system which takes water as a cooling medium, consists of heat exchange equipment, cooling equipment, a water pump, a pipeline and other related equipment and is recycled. The circulating cooling water bypass flow is the part of water which is shunted from the circulating cooling water system and is returned to the circulating cooling water system after being treated, the bypass flow treatment is that aiming at the situation of harmful substances in water, a part of circulating cooling water is taken out according to a proper proportion, and the circulating cooling water is returned to the system after the harmful substances are removed, so that the total harmful substances in water meet the water quality requirement. The by-pass treatment technique is actually a sewage reuse technique. The side-stream treatment can be divided into two types, suspended solids treatment and dissolved solids treatment, depending on the form of the treated material.
For example, chinese patent CN201610119243.6 discloses a circulating cooling water ozone by-pass flow treatment system and method, an ozone reaction tower is arranged in a cooling tower system, a small part of circulating cooling water in a reservoir or a filtering pool is introduced into the ozone reaction tower, and ozone is introduced into the ozone reaction tower to form a high-concentration ozone water solution (the ORP value is above 650 mV) in the ozone reaction tower, after the ozone water solution stays for a period of time, the treated ozone water solution with certain sterilization and algae removal functions is converged into a reservoir, the circulating cooling water is continuously converged into the high-concentration ozone water solution with oxidability by the high-concentration ozone water, and is diluted into low-concentration ozone water solution (ozone water solution with ORP value below 300 mV) by a large amount of circulating cooling water, so that the residual quantity of circulating cooling water ozone in a cooling tower or a water storage tank can be kept at a lower level, and the effects of auxiliary sterilization and algae removal can be achieved. For example, chinese patent CN03150904.5 discloses a bypass flow treatment device and method for a medium and small-sized circulating cooling water system, which comprises a housing, wherein the housing is provided with a water inlet and a water outlet which can be communicated with the circulating cooling water system in a bypass flow manner, and the housing is provided with a filtering unit, and is characterized in that a dosing unit composed of a controlled release type solid water treatment agent is arranged below the filtering unit, and the water outlet end of the dosing unit is communicated with the water outlet. However, the above-mentioned patent still cannot effectively increase the concentration ratio of the circulating water and reduce the amount of the circulating water discharged, so that it is necessary to provide a side-stream treatment method for the circulating cooling water without discharging the sewage.
Disclosure of Invention
The invention aims to provide a sewage-discharge-free circulating cooling water bypass flow treatment method which can effectively purify cooling water, effectively improve the concentration rate of circulating water, reduce the sewage discharge amount of the circulating water, effectively save water resources, has simple operation steps and is suitable for popularization and use, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a sewage-discharge-free circulating cooling water bypass flow treatment method comprises the following steps:
step 1, water in a circulating cooling water system enters a circulating pipeline through a circulating pump, passes through a heat exchanger and is conveyed into a cooling tower;
step 4, leading the rest most of cooling water into a water storage tank at the same time;
step 7, aerating the sewage purification tank by an air pump, adding an oxidant, a coagulant aid and flocculation while aerating, and standing;
and 10, conveying the water body after standing in the step 9 into a tap water station for water treatment, and conveying the water body into each water supply point.
The multi-media filter in the pollution discharge-free circulating cooling water bypass flow treatment method comprises a filter cylinder 1, four supporting legs 2 are fixedly connected to the bottom of the filter cylinder 1, the four supporting legs 2 are respectively fixed at four corners of the bottom of the filter cylinder 1, a cylinder cover 3 is arranged at the top of the filter cylinder 1, a water inlet 4 is fixedly inserted in the cylinder cover 3, a plurality of positioning blocks 5 are fixedly connected to the outer side wall of the top of the filter cylinder 1, inserting plates 7 corresponding to the positioning blocks 5 are fixedly connected to the cylinder cover 3, the inserting plates 7 are slidably inserted in the positioning blocks 5, vertical plates 6 are fixedly connected to the side walls of the positioning blocks 5, clamping rods 8 are slidably inserted in the vertical plates 6, clamping grooves corresponding to the clamping rods 8 are formed in the outer side walls of the inserting plates 7, a filter screen 9 is arranged in the cylinder cover 3, and a plurality of mounting blocks 10 are clamped on the outer side walls of the filter screen 9, one end of each of the mounting blocks 10 is fixedly connected with the inner wall of the cylinder cover 3, a smokeless coal layer 11, an activated carbon layer 12 and a fine sand layer 13 are sequentially arranged in the filter cylinder 1 from top to bottom, a water outlet pipe 14 is fixedly inserted into the bottom of the filter cylinder 1, and a water outlet valve 15 is arranged on the water outlet pipe 14.
Preferably, the turbidity of the filtered water in the step 1 is controlled below 4NTU-5 NTU.
Preferably, in the step 3, the flow rate of the outlet water of the ozone water is adjusted by adjusting an electric adjusting valve at the water outlet of the ozone reaction tower through a PLC.
Preferably, the ORP value of the high-concentration ozone water solution formed in the ozone reaction tower in the step 3 is higher than 650 m.
Preferably, the standing time in the step 7 is 3h-4 h.
Preferably, the stirring time in the step 8 is 20-30 min.
Preferably, the step 9 of the osmotic filtration is performed by using a reverse osmosis filter.
Preferably, a circulating water pump 16 is fixedly connected to the outer side wall of the filter cartridge 1, a guide pipe 17 is communicated between a water inlet end of the circulating water pump 16 and the water outlet pipe 14, and a delivery pipe 18 is communicated between a water outlet end of the circulating water pump 16 and the filter cartridge 1.
Compared with the prior art, the invention has the beneficial effects that:
the non-drainage circulating cooling water bypass flow treatment method can effectively purify cooling water, effectively improve the concentration rate of circulating water, reduce the discharge amount of circulating water, effectively save water resources, has simple operation steps and is suitable for popularization and use.
Drawings
FIG. 1 is a schematic structural diagram of a blowdown-free recirculated cooling water bypass flow treatment method according to the present invention;
FIG. 2 is a schematic view of a multi-media filter in a blowdown-free recirculated cooling water bypass flow treatment method according to the present invention;
FIG. 3 is an enlarged schematic view of the bypass flow processing method of the present invention at the point A in FIG. 2;
fig. 4 is a schematic view of the filter screen structure of fig. 2 according to the method for treating the circulating cooling water by-pass flow without draining.
In the figure: 1. a filter cartridge; 2. supporting legs; 3. a cylinder cover; 4. a water inlet; 5. positioning blocks; 6. a vertical plate; 7. inserting plates; 8. a clamping rod; 9. a filter screen; 10. mounting a block; 11. a smokeless coal seam; 12. an activated carbon layer; 13. a fine sand layer; 14. a water outlet pipe; 15. a water outlet valve; 16. a water circulating pump; 17. a flow guide pipe; 18. a delivery pipe.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easily understood, the invention is described in the embodiments of the application with the following combination of the specific embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Also, when an element is referred to as being "secured to" or "disposed on" 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. When an element is referred to as being "fixedly attached" to another element, it can be fixedly attached by welding, bolting, gluing, or the like. In conclusion, the specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1-4, an embodiment of the present invention is shown: a sewage-discharge-free circulating cooling water bypass flow treatment method comprises the following steps:
step 1, water in a circulating cooling water system enters a circulating pipeline through a circulating pump, passes through a heat exchanger and is conveyed into a cooling tower;
step 4, introducing the rest of cooling water into a water storage tank at the same time;
step 7, aerating the sewage purification tank by an air pump, adding an oxidant, a coagulant aid and flocculation while aerating, and standing;
and 10, conveying the water body after standing in the step 9 into a tap water station for water treatment, and conveying the water body into each water supply point.
The multi-media filter in the pollution discharge-free circulating cooling water bypass flow treatment method comprises a filter cylinder 1, four supporting legs 2 are fixedly connected to the bottom of the filter cylinder 1, the four supporting legs 2 are respectively fixed to four corners of the bottom of the filter cylinder 1, a cylinder cover 3 is arranged at the top of the filter cylinder 1, a water inlet 4 is fixedly inserted into the cylinder cover 3, a plurality of positioning blocks 5 are fixedly connected to the outer side wall of the top of the filter cylinder 1, an inserting plate 7 corresponding to the positioning blocks 5 is fixedly connected to the cylinder cover 3, the inserting plate 7 is slidably inserted into the positioning blocks 5, a vertical plate 6 is fixedly connected to the side wall of each positioning block 5, a clamping rod 8 is slidably inserted into the vertical plate 6, a clamping groove corresponding to the clamping rod 8 is formed in the outer side wall of the inserting plate 7, a filter screen 9 is arranged in the cylinder cover 3, a plurality of mounting blocks 10 are clamped to the outer side wall of the filter screen 9, one end of each mounting block 10 is fixedly connected to the inner wall of the cylinder cover 3, and a smokeless coal seam 11 is sequentially arranged in the filter cylinder 1 from top to bottom, Activated carbon layer 12 and fine sand layer 13, the bottom of straining a section of thick bamboo 1 is fixed to be inserted and is equipped with outlet pipe 14, be equipped with outlet valve 15 on the outlet pipe 14, specific saying, sewage is leading-in to barrel 1 through water inlet 4 on the cover 3 in, sewage carries out the prefiltration through filter screen 9 on the cover 3, large granule impurity in the filtering inner part, then through straining a smokeless coal seam 11 inside 1, activated carbon layer 12 carries out deep filtration with fine sand layer 13, flow into outlet pipe 14 department afterwards, insert the counterpoint installation on locating piece 5 through picture peg 7 between cover 3 and the barrel, thereby the card pole 8 on the installation completion back sliding riser 6 inserts the draw-in groove and realizes fixing, replace the mode of original screw installation, be convenient for clear up the filter screen 9 inside the cover 3.
In the embodiment, the turbidity of the filtered water in the step 1 is controlled to be below 4NTU-5 NTU; in the step 3, the electric regulating valve at the water outlet of the ozone reaction tower is regulated through the PLC to regulate the water outlet flow of the ozone water; in the step 3, forming a high-concentration ozone water solution with ORP value higher than 650m in the ozone reaction tower; and the infiltration filtration in the step 9 is carried out by adopting a reverse osmosis filter.
Example 2
Please refer to fig. 1, which is another preferred embodiment of the present invention, which has the implementation contents of the above embodiment 1, wherein, for the specific implementation of the above embodiment 1, refer to the above description, and the embodiment herein is not repeated in detail; in the present embodiment, the difference from the above embodiment 1 is:
in the embodiment, the standing time in the step 7 is 3.5 hours; the stirring time in step 8 was 25 min.
Example 3
Please refer to fig. 1, which is another preferred embodiment of the present invention, which has the implementation contents of the above embodiment 1, wherein, for the specific implementation of the above embodiment 1, refer to the above description, and the embodiment herein is not repeated in detail; in the embodiment of the present application, the difference from the above embodiment 1 is that:
in this embodiment, the sewage treatment agent in step 8 includes 14% of hydrogen peroxide, 25% of ammonium sulfate, 16% of picrorhiza rhizome, 33% of acetic acid, and 20% of alum.
Example 4
Please refer to fig. 2, which is another preferred embodiment of the present invention, which has the implementation contents of the above embodiment 1, wherein, for the specific implementation of the above embodiment 1, the above description is referred to, and the embodiment herein is not repeated in detail; in the present embodiment, the difference from the above embodiment 1 is:
in this embodiment, fixedly connected with circulating water pump 16 on the lateral wall of straining a section of thick bamboo 1, the intercommunication has honeycomb duct 17 between circulating water pump 16's the end of intaking and the outlet pipe 14, circulating water pump 16's the end of water-out and strain a section of thick bamboo 1 between intercommunication have conveyer pipe 18, concretely speaking, circulating water pump 16 can utilize honeycomb duct 17 to take out the sewage after filtering through straining on 1 lateral wall, carry again through conveyer pipe 18 afterwards and filter in straining a section of thick bamboo 1, adopt the mode of loop filter, can guarantee the depth filtration of sewage, further improve the qualified standard of discharge of sewage.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A sewage-discharge-free circulating cooling water bypass flow treatment method is characterized in that: the method comprises the following steps:
step 1, water in a circulating cooling water system enters a circulating pipeline through a circulating pump, passes through a heat exchanger and is conveyed into a cooling tower; step 2, feeding the circulating water into a multi-media filter for filtration; step 3, introducing a part of the filtered cooling water into an ozone reaction tower, introducing ozone, and standing for a period of time to form a high-concentration ozone water solution which is merged into a reservoir; step 4, leading the rest most of cooling water into a water storage tank at the same time; step 5, sending the sewage into a sedimentation tank for preliminary sedimentation, and cleaning sediment at the bottom of the sedimentation tank; step 6, recycling the upper layer sewage of the sedimentation tank to a sewage purification tank; step 7, aerating the sewage purification tank by an air pump, adding an oxidant, a coagulant aid and flocculation while aerating, and standing; step 8, adding a sewage treatment agent into the purification tank, stirring, and standing; step 9, performing osmotic filtration on the sewage after standing in the step 8, removing solid substances after filtration, and standing; and 10, conveying the water body after standing in the step 9 into a tap water station for water treatment, and conveying the water body into each water supply point.
2. The blowdown-free circulating cooling water bypass flow treatment method as claimed in claim 1, wherein: the multi-media filter in the pollution discharge-free circulating cooling water bypass flow treatment method comprises a filter cylinder (1), wherein the bottom of the filter cylinder (1) is fixedly connected with four supporting legs (2), the four supporting legs (2) are respectively fixed at four corners of the bottom of the filter cylinder (1), the top of the filter cylinder (1) is provided with a cylinder cover (3), a water inlet (4) is fixedly inserted in the cylinder cover (3), the outer side wall of the top of the filter cylinder (1) is fixedly connected with a plurality of positioning blocks (5), the cylinder cover (3) is fixedly connected with inserting plates (7) corresponding to the positioning blocks (5), the inserting plates (7) are slidably inserted in the positioning blocks (5), the side wall of each positioning block (5) is fixedly connected with a vertical plate (6), the vertical plates (6) are slidably inserted with clamping rods (8), and the outer side wall of each inserting plate (7) is provided with a clamping groove corresponding to each clamping rod (8), be equipped with filter screen (9) in cover (3), the card is equipped with a plurality of installation pieces (10), and is a plurality of on the lateral wall of filter screen (9) the one end of installation piece (10) all with cover (3) inner wall fixed connection, from the top down is equipped with smokeless coal seam (11), activated carbon layer (12) and fine sand layer (13) in proper order in straining a section of thick bamboo (1), the bottom of straining a section of thick bamboo (1) is fixed to be inserted and is equipped with outlet pipe (14), be equipped with outlet valve (15) on outlet pipe (14).
3. The blowdown-free circulating cooling water bypass flow treatment method as claimed in claim 1, wherein: and the turbidity of the filtered water in the step 1 is controlled to be below 4NTU-5 NTU.
4. The blowdown-free circulating cooling water bypass flow treatment method as claimed in claim 1, wherein: and in the step 3, the electric regulating valve at the water outlet of the ozone reaction tower is regulated through the PLC to regulate the water outlet flow of the ozone water.
5. The blowdown-free circulating cooling water bypass flow treatment method as claimed in claim 1, wherein: the ORP value of the high-concentration ozone water solution formed in the ozone reaction tower in the step 3 is higher than 650 m.
6. The blowdown-free circulating cooling water bypass flow treatment method as claimed in claim 1, wherein: and the standing time in the step 7 is 3-4 h.
7. The blowdown-free circulating cooling water bypass flow treatment method as claimed in claim 1, wherein: and the stirring time in the step 8 is 20-30 min.
8. The blowdown-free circulating cooling water bypass flow treatment method as claimed in claim 1, wherein: and the step 9, namely, the osmotic filtration is carried out by adopting a reverse osmosis filter.
9. The blowdown-free circulating cooling water bypass flow treatment method as claimed in claim 1, wherein: the outer side wall of the filter cartridge (1) is fixedly connected with a circulating water pump (16), and a guide pipe (17) is communicated between the water inlet end of the circulating water pump (16) and the water outlet pipe (14).
10. The blowdown-free circulating cooling water bypass flow treatment method as claimed in claim 9, wherein: a delivery pipe (18) is communicated between the water outlet end of the circulating water pump (16) and the filter cartridge (1).
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