CN111268835A - Process for treating domestic sewage - Google Patents
Process for treating domestic sewage Download PDFInfo
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- CN111268835A CN111268835A CN202010104907.8A CN202010104907A CN111268835A CN 111268835 A CN111268835 A CN 111268835A CN 202010104907 A CN202010104907 A CN 202010104907A CN 111268835 A CN111268835 A CN 111268835A
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- 239000010865 sewage Substances 0.000 title claims abstract description 190
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000008569 process Effects 0.000 title claims abstract description 18
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 24
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 13
- 238000005189 flocculation Methods 0.000 claims abstract description 12
- 230000016615 flocculation Effects 0.000 claims abstract description 12
- 239000000645 desinfectant Substances 0.000 claims abstract description 10
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 239000008394 flocculating agent Substances 0.000 claims abstract description 5
- 150000002500 ions Chemical class 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 5
- 230000001678 irradiating effect Effects 0.000 claims abstract description 4
- 238000005070 sampling Methods 0.000 claims description 39
- 238000001514 detection method Methods 0.000 claims description 32
- 239000000725 suspension Substances 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 7
- 241000588724 Escherichia coli Species 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 210000005056 cell body Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 241000894006 Bacteria Species 0.000 abstract description 7
- 244000052769 pathogen Species 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 235000013311 vegetables Nutrition 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
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a process method for treating domestic sewage, which comprises the following steps: s1, collecting the domestic sewage in a sewage collecting tank through a drainage pipeline; s2, enabling the sewage to pass through a grid channel to remove suspended matters in the sewage; s3, introducing the sewage into a flocculation tank, and adding a flocculating agent into the flocculation tank to flocculate the sewage; s4, introducing the sewage into a neutralization tank, and adding a neutralizing agent into the neutralization tank to remove chemical ions in the sewage; s5, introducing the sewage into a disinfection tank, and adding a disinfectant into the disinfection tank to disinfect the sewage; s6, introducing the sewage into an ultraviolet disinfection chamber, and irradiating the sewage for 2-3 hours by using ultraviolet rays to realize thorough sterilization and disinfection of the sewage; and S7, introducing the sewage into a reservoir to realize the collection of the treated sewage. The invention has the following advantages and effects: by adopting the disinfectant and ultraviolet irradiation, the thorough killing of bacteria and pathogens in the sewage is realized, and the sewage treatment effect is improved.
Description
Technical Field
The invention relates to the field of sewage treatment, in particular to a process method for treating domestic sewage.
Background
Domestic sewage refers to water that has been used and cannot be reused, and includes wash water, vegetable wash water, laundry water, and the like. Domestic sewage is easy to decay to generate foul smell, and meanwhile, bacteria and pathogens in the domestic sewage can cause epidemic infectious diseases, so the domestic sewage needs to be treated before being discharged.
Chinese patent CN108164093A discloses a sewage treatment process, which comprises the following steps: (1) the sewage is subjected to primary filtration treatment through a grid to remove suspended matters and floating matters in the sewage; (2) introducing the sewage into a flocculation tank, adding a flocculating agent into the flocculation tank, and flocculating the sewage; (3) introducing the sewage into a neutralization tank, adding a neutralizing agent into the neutralization tank, and neutralizing and reacting chemical ions in the sewage in the neutralization tank; (4) and (4) enabling the sewage to flow into a disinfection tank, adding a disinfectant, and reserving the sewage to a reservoir after disinfection treatment.
When the treatment process is applied to treating domestic sewage, the final sterilization and disinfection operation of the sewage is realized by using the disinfectant, so that the disinfected sewage is stored in the water storage tank. However, because the types of bacteria in the sewage are more, the complete killing of the bacteria in the sewage cannot be realized only by adding the disinfectant, so that the treatment effect of the sewage is influenced and needs to be improved.
Disclosure of Invention
The invention aims to provide a process method for treating domestic sewage, which has the advantage of improving the sewage treatment effect.
The technical purpose of the invention is realized by the following technical scheme: a process method for treating domestic sewage comprises the following steps:
s1, collecting the domestic sewage in a sewage collecting tank through a drainage pipeline;
s2, enabling the sewage to pass through a grid channel to remove suspended matters in the sewage, and realizing primary filtration treatment of the sewage;
s3, introducing the sewage into a flocculation tank, and adding a flocculating agent into the flocculation tank to flocculate the sewage;
s4, introducing the sewage into a neutralization tank, and adding a neutralizing agent into the neutralization tank to remove chemical ions in the sewage;
s5, introducing the sewage into a disinfection tank, and adding a disinfectant into the disinfection tank to disinfect the sewage;
also comprises the following steps:
s6, introducing the sewage into an ultraviolet disinfection chamber, and irradiating the sewage for 2-3 hours by using ultraviolet rays to realize thorough sterilization and disinfection of the sewage;
and S7, introducing the sewage into a reservoir to realize the collection of the treated sewage.
By adopting the technical scheme, when sewage is treated, the disinfection treatment of the sewage is realized by adding the disinfectant into the sewage, and then the sewage is irradiated by ultraviolet rays for 2-3h, so that the thorough sterilization and disinfection of the sewage are realized, bacteria and pathogens in the sewage are thoroughly killed, and the treatment effect of the sewage is improved.
The invention is further provided with: between step S5 and step S6, there is further provided step S51, and step S51 is as follows:
s51: and (3) introducing the sewage into a filter, and thoroughly filtering suspended impurities remained in the sewage.
Through adopting above-mentioned technical scheme, after sewage through flocculation treatment, neutralization treatment and disinfection treatment, contain a small amount of impurity or suspended solid in the sewage, let in sewage in the filter in succession this moment, realize the thorough processing of impurity or suspended solid to improve the treatment effect of sewage.
The invention is further provided with: between step S6 and step S7, there is further provided step S61, and step S61 is as follows:
s61: and (4) introducing the sewage into a detection tank, performing sampling detection on the sewage, detecting whether escherichia coli and COD in the sewage exceed standards, if the detection value does not exceed the standards, performing step S7, and if the detection value exceeds the standards, repeating step S6.
Through adopting above-mentioned technical scheme, after sewage through ultraviolet sterilization handles, carry out the sampling detection to sewage, ensure that escherichia coli and COD in the sewage reach discharge standard, avoid causing secondary pollution to environment or health.
The invention is further provided with: the detection tank comprises a tank body, a support is arranged on the tank body, a suspension is arranged below the support, and an air cylinder used for controlling the suspension to move along the vertical direction is arranged on the upper end face of the support; the suspension is characterized in that a plurality of mounting rods are uniformly arranged on the lower end face of the suspension, a fixing rod is horizontally arranged at the lower end of each mounting rod, a sampling bottle with an upper end open is arranged on each fixing rod, a sealing cover is arranged at the upper end of each sampling bottle, and a switch mechanism used for controlling the opening and closing of the sealing cover is arranged in the tank body.
Through adopting above-mentioned technical scheme, when carrying out the sample detection to the sewage in the testing pond, utilize cylinder drive suspension downstream, the suspension drives installation pole and dead lever simultaneous movement this moment to control a plurality of sampling bottles and immerse in the sewage completely. Utilize the sealed lid of on-off mechanism control to open in sewage afterwards for the sewage of each position flows into in a plurality of sampling bottles, then utilizes sealed lid to cover the sealed back of sampling bottle, realizes the multiple spot sample of sewage. And finally, the air cylinder is utilized to drive the suspension to move upwards, the suspension drives the mounting rod and the fixing rod to move synchronously, and the sewage in the sampling bottles can be detected one by one until the sampling bottles are completely positioned outside the sewage. Therefore, by utilizing a plurality of sampling bottles immersed in the sewage, the multi-point sampling of the sewage is realized, the multi-position detection of the sewage is realized, the detection precision is improved, and the sewage after treatment can reach the discharge standard.
The invention is further provided with: the switch mechanism comprises a support frame arranged on a piston rod of the air cylinder, and a switch frame is vertically connected below the support frame in a sliding manner; the switch frame and the support frame are both positioned above the suspension frame, and a plurality of springs are uniformly arranged on the switch frame and the support frame; a switch rod aligned with the sealing cover is vertically arranged on the lower end face of the switch frame, and the lower end of the switch rod is fixed on the upper end face of the sealing cover; a plurality of switch boards are evenly arranged on the periphery of the switch frame, and the bottom wall of the pool body is vertically provided with an ejector rod which is located below the switch boards and used for driving the switch boards to move upwards.
Through adopting above-mentioned technical scheme, when the piston rod of cylinder stretches out, the piston rod of cylinder drives the synchronous downstream of support frame and switch frame, utilizes the resilience force of spring to apply decurrent effort to switch frame and switch lever all the time this moment for sealed lid compresses tightly the sample bottle, realizes the sealed of sample bottle. When the switch plate on the switch frame is abutted to the ejector rod, the ejector rod drives the switch plate and the switch frame to move upwards, the switch frame drives the switch rod and the sealing cover to move upwards at the moment, and the pressing spring is compressed, so that the opening control of the sampling bottle is realized. When the piston rod of cylinder drove the synchronous upward movement of support frame and switch frame, the switch board breaks away from the ejector pin gradually, and spring bullet is opened and drive switch frame and switch lever downstream simultaneously for sealed lid compresses tightly the sample bottle gradually, realizes the sealed of sample bottle, thereby realizes the closing control of sample bottle. Therefore, the stable control of the automatic opening and closing of the sealing cover is realized by controlling the operation of the switch mechanism through the extension and retraction of the piston rod of the air cylinder, so that the multi-point stable sampling of sewage is realized.
The invention is further provided with: the ejector rod comprises a lower rod body and an upper rod body, the lower end face of the upper rod body is vertically provided with an adjusting rod, the upper end face of the lower rod body is provided with an adjusting hole for the adjusting rod to slide, and the outer wall of the lower rod body is in threaded connection with a bolt for pressing the outer wall of the adjusting rod.
Through adopting above-mentioned technical scheme, when needs take a sample to the sewage of the different degree of depth, through rotating the bolt after, the body of rod drives the regulation pole and upwards or downstream in the pulling, realizes the regulation of whole ejector pin high position to the realization is to the sample of not co-altitude position, further improves the detection precision of sewage.
The invention is further provided with: a plurality of guide rods are vertically arranged on the switch board, and guide holes for the guide rods to slide are arranged on the support in a penetrating mode.
Through adopting above-mentioned technical scheme, through the cooperation that sets up guide bar and guiding hole, the motion route of restriction switch frame realizes the stable control that the sampling bottle opened and close.
The invention is further provided with: the guide rod is arranged in a hollow shape, a plurality of air holes are formed in the outer wall of the guide rod, an air blower is arranged on the support, and a plurality of rubber tubes communicated with the upper end of the guide rod are arranged at the air outlet of the air blower.
Through adopting above-mentioned technical scheme, when the guide bar during operation, utilize the air-blower to let in the guide bar with the air to make the air discharge from the venthole, air drive sewage rolls this moment, realizes the stirring of sewage, improves the degree of consistency of each position concentration of sewage, realizes the accurate detection of sewage.
The invention is further provided with: the inner wall of the lower end of the tank body is horizontally and rotatably connected with a supporting shaft, the supporting shaft is rotatably connected with an installation wheel, and the side walls of two ends of the installation wheel are respectively provided with a plurality of stirring blades; and a pull rope is wound on the outer wall of the mounting wheel and fixed on the lower end surface of the suspension, and a torsion spring fixed on the outer wall of the supporting shaft is arranged on the outer wall of the mounting wheel.
Through adopting above-mentioned technical scheme, when the suspension downstream, the torsional spring tightens up and drives the installation wheel rotatory, and the installation wheel carries out the rolling with the stay cord this moment to drive stirring vane synchronous revolution, realize the intensive mixing of sewage, thereby improve the degree of consistency of each position concentration of sewage, realize the accurate detection of sewage.
In conclusion, the invention has the following beneficial effects:
1. the thorough killing of bacteria and pathogens in the sewage is realized by adopting the disinfectant and ultraviolet irradiation, so that the sewage treatment effect is improved;
2. sampling detection is carried out on the sewage to ensure that escherichia coli and COD in the sewage reach the discharge standard, so that secondary pollution to the environment or sanitation is avoided;
3. by utilizing a plurality of sampling bottles immersed in the sewage, multi-point sampling of the sewage is realized, multi-position detection of the sewage is realized, and the detection precision is improved, so that the treated sewage can reach the discharge standard;
4. the stable control of the automatic opening and closing of the sealing cover is realized by controlling the operation of the switch mechanism through the extension and retraction of the piston rod of the air cylinder, so that the multipoint stable sampling of the sewage is realized;
5. through stirring sewage, improve the degree of consistency of each position concentration of sewage, realize the accurate detection of sewage.
Drawings
FIG. 1 is a schematic structural view of a detection cell of the embodiment;
FIG. 2 is a schematic view of the internal structure of the detection cell of the embodiment.
Reference numerals: 1. a tank body; 11. a support shaft; 12. mounting wheels; 13. a stirring blade; 14. pulling a rope; 15. a torsion spring; 2. a support; 21. a cylinder; 22. a guide hole; 23. a blower; 24. a rubber tube; 3. a suspension; 31. mounting a rod; 32. fixing the rod; 33. sampling a bottle; 34. a sealing cover; 4. a switch mechanism; 41. a support frame; 42. a switch frame; 43. a spring; 44. a switch lever; 45. a switch plate; 46. a guide bar; 47. a vent hole; 5. a top rod; 51. a lower rod body; 52. a rod body is arranged; 53. adjusting a rod; 54. an adjustment hole; 55. and (4) bolts.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A process method for treating domestic sewage comprises the following steps:
and S1, collecting the domestic sewage in a sewage collecting tank through a drainage pipeline.
And S2, making the sewage pass through a grid channel to remove suspended matters in the sewage, and realizing primary filtration treatment of the sewage.
S3, introducing the sewage into a flocculation tank, and adding a flocculating agent into the flocculation tank to flocculate the sewage.
And S4, introducing the sewage into a neutralization tank, and adding a neutralizing agent into the neutralization tank to remove chemical ions in the sewage.
S5, introducing the sewage into a disinfection tank, and adding a disinfectant into the disinfection tank to disinfect the sewage.
S51: and (3) introducing the sewage into a filter, and thoroughly filtering suspended impurities remained in the sewage.
S6, introducing the sewage into an ultraviolet disinfection chamber, and irradiating the sewage for 2-3 hours by using ultraviolet rays to realize thorough sterilization and disinfection of the sewage.
S61: and (4) introducing the sewage into a detection tank, performing sampling detection on the sewage, detecting whether escherichia coli and COD in the sewage exceed standards, if the detection value does not exceed the standards, performing step S7, and if the detection value exceeds the standards, repeating step S6.
And S7, introducing the sewage into a reservoir to realize the collection of the treated sewage.
When sewage is treated, the sewage is removed after flocculation treatment, neutralization treatment and disinfection treatment. Then the sewage is introduced into the filter to realize the thorough treatment of fine impurities or suspended matters.
Finally, the sewage is irradiated by ultraviolet rays for 2-3 hours, so that the sewage is thoroughly sterilized and disinfected, and bacteria and pathogens in the sewage are thoroughly killed. And then, the sewage is detected, so that the escherichia coli and COD in the sewage reach the discharge standard, the sewage treatment effect is improved, and the sewage reaches the discharge standard.
As shown in fig. 1 and 2, the detection tank includes a tank body 1, a support 2 is provided on the tank body 1, a suspension 3 is provided below the support 2, and a cylinder 21 for controlling the suspension 3 to move in the vertical direction is provided on the upper end surface of the support 2.
As shown in fig. 1 and 2, a plurality of mounting rods 31 are uniformly provided on the lower end surface of the suspension 3, and a fixing rod 32 is horizontally provided at the lower end of each mounting rod 31. A sampling bottle 33 having an upper end opened is screw-coupled to the fixing rod 32, and a sealing cap 34 is provided at the upper end of the sampling bottle 33.
When carrying out the sample detection to the sewage in the testing pond, utilize cylinder 21 drive suspension 3 downstream, suspension 3 drives installation pole 31 and dead lever 32 simultaneous movement this moment to control a plurality of sampling bottles 33 and immerse in the sewage completely. Then the sealing cover 34 is opened in the sewage, so that the sewage at each position flows into a plurality of sampling bottles 33, and then the sampling bottles 33 are covered and sealed by the sealing cover 34, so that the multi-point sampling of the sewage is realized.
Finally, the air cylinder 21 is used for driving the suspension 3 to move upwards, the suspension 3 drives the mounting rod 31 and the fixing rod 32 to move synchronously, and the sewage in the sampling bottles 33 can be detected one by one until the sampling bottles 33 are completely positioned outside the sewage, so that the multi-point sampling and detection of the sewage are realized.
As shown in fig. 1 and 2, a switch mechanism 4 for controlling the opening and closing of the sealing cover 34 is arranged in the tank body 1, the switch mechanism 4 includes a support frame 41 arranged on a piston rod of the cylinder 21, and a switch frame 42 is vertically connected below the support frame 41 in a sliding manner.
As shown in fig. 1 and 2, the switch frame 42 and the support frame 41 are both located above the suspension 3, and the switch frame 42 and the support frame 41 are uniformly provided with a plurality of springs 43.
As shown in fig. 1 and 2, the lower end surface of the switch frame 42 is vertically provided with a switch lever 44 aligned with the seal cover 34, and the lower end of the switch lever 44 is fixed to the upper end surface of the seal cover 34.
As shown in fig. 1 and 2, a plurality of switch plates 45 are uniformly arranged around the switch frame 42, and a top rod 5 which is located below the switch plates 45 and used for driving the switch plates 45 to move upwards is vertically arranged on the bottom wall of the tank body 1.
When the piston rod of the cylinder 21 extends out, the piston rod of the cylinder 21 drives the support frame 41 and the switch frame 42 to synchronously move downwards, and at the moment, the resilience force of the spring 43 is utilized to always apply a downward acting force to the switch frame 42 and the switch rod 44, so that the sealing cover 34 compresses the sampling bottle 33, and the sealing of the sampling bottle 33 is realized.
When the switch plate 45 on the switch frame 42 abuts against the push rod 5, the push rod 5 drives the switch plate 45 and the switch frame 42 to move upwards, at the moment, the switch frame 42 drives the switch rod 44 and the sealing cover 34 to move upwards, and the spring 43 is pressed to compress, so that the opening control of the sampling bottle 33 is realized.
When the piston rod of the cylinder 21 drives the support frame 41 and the switch frame 42 to move upwards synchronously, the switch plate 45 is separated from the ejector rod 5 gradually, and meanwhile, the spring 43 springs open and drives the switch frame 42 and the switch rod 44 to move downwards, so that the sealing cover 34 presses the sampling bottle 33 gradually, the sealing of the sampling bottle 33 is realized, and the closing control of the sampling bottle 33 is realized.
As shown in fig. 1 and 2, the switch plate 45 is vertically provided with a plurality of hollow guide rods 46, and the bracket 2 is provided with guide holes 22 for the guide rods 46 to slide.
As shown in fig. 1 and 2, a plurality of vent holes 47 are provided in the outer wall of the guide rod 46, the blower 23 is provided in the rack 2, and the rubber tube 24 communicating the upper ends of the plurality of guide rods 46 is provided at the air outlet of the blower 23.
When the switch board 45 moves, the switch board 45 drives the guide rod 46 to move synchronously, and the motion path of the switch frame 42 is limited by the cooperation of the guide rod 46 and the guide hole 22, so that the stability of the switch mechanism 4 during working is improved, and the stable opening and closing of the sampling bottle 33 are ensured.
And when guide bar 46 during operation, utilize air-blower 23 to let in the guide bar 46 with the air to make the air discharge from air vent 47 in, the air-blast sewage of this moment rolls, realizes the stirring of sewage, improves the degree of consistency of each position concentration of sewage, realizes the accurate detection of sewage.
As shown in figure 2, a supporting shaft 11 is horizontally and rotatably connected to the inner wall of the lower end of the tank body 1, an installation wheel 12 is rotatably connected to the supporting shaft 11, and a plurality of stirring blades 13 are arranged on the side walls of the two ends of the installation wheel 12.
As shown in fig. 2, a pulling rope 14 is wound around the outer wall of the mounting wheel 12, the pulling rope 14 is fixed to the lower end surface of the suspension 3, and the outer wall of the mounting wheel 12 is provided with a torsion spring 15 fixed to the outer wall of the support shaft 11.
When the suspension 3 moves downwards, the torsion spring 15 is tightened and drives the mounting wheel 12 to rotate, and at the moment, the mounting wheel 12 winds the pulling rope 14 and drives the stirring blade 13 to synchronously rotate. Can utilize stirring vane 13 to stir countless this moment, realize the intensive mixing of sewage, improve the degree of consistency of each position concentration of sewage, realize the accurate detection of sewage.
As shown in fig. 2, the push rod 5 includes a lower rod body 51 and an upper rod body 52, the lower end surface of the upper rod body 52 is vertically provided with an adjusting rod 53, the upper end surface of the lower rod body 51 is provided with an adjusting hole 54 for the adjusting rod 53 to slide, and the outer wall of the lower rod body 51 is in threaded connection with a bolt 55 for pressing the outer wall of the adjusting rod 53.
When sewage of different depths needs to be sampled, the upper rod body 52 is pulled to drive the adjusting rod 53 to move upwards or downwards after the bolt 55 is rotated. Until the height position of the upper rod body 52 meets the requirement, the bolt 55 is screwed to adjust the height position of the whole mandril 5, and the sampling of different height positions can be realized at the moment.
The specific embodiments are only for explaining the present invention, and the present invention is not limited thereto, and those skilled in the art can make modifications without inventive contribution to the present embodiments as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (9)
1. A process method for treating domestic sewage comprises the following steps:
s1, collecting the domestic sewage in a sewage collecting tank through a drainage pipeline;
s2, enabling the sewage to pass through a grid channel to remove suspended matters in the sewage, and realizing primary filtration treatment of the sewage;
s3, introducing the sewage into a flocculation tank, and adding a flocculating agent into the flocculation tank to flocculate the sewage;
s4, introducing the sewage into a neutralization tank, and adding a neutralizing agent into the neutralization tank to remove chemical ions in the sewage;
s5, introducing the sewage into a disinfection tank, and adding a disinfectant into the disinfection tank to disinfect the sewage;
the method is characterized in that: also comprises the following steps:
s6, introducing the sewage into an ultraviolet disinfection chamber, and irradiating the sewage for 2-3 hours by using ultraviolet rays to realize thorough sterilization and disinfection of the sewage;
and S7, introducing the sewage into a reservoir to realize the collection of the treated sewage.
2. The process for treating domestic sewage according to claim 1, wherein: between step S5 and step S6, there is further provided step S51, and step S51 is as follows:
s51: and (3) introducing the sewage into a filter, and thoroughly filtering suspended impurities remained in the sewage.
3. The process for treating domestic sewage according to claim 1, wherein: between step S6 and step S7, there is further provided step S61, and step S61 is as follows:
s61: and (4) introducing the sewage into a detection tank, performing sampling detection on the sewage, detecting whether escherichia coli and COD in the sewage exceed standards, if the detection value does not exceed the standards, performing step S7, and if the detection value exceeds the standards, repeating step S6.
4. A process for the treatment of domestic sewage according to claim 3, wherein: the detection tank comprises a tank body (1), a support (2) is arranged on the tank body (1), a suspension (3) is arranged below the support (2), and an air cylinder (21) used for controlling the suspension (3) to move along the vertical direction is arranged on the upper end face of the suspension;
the utility model discloses a sampling device, including suspension frame (3), bottom end face, dead lever (32), sample bottle (33), sealed lid (34), be provided with in cell body (1) and be used for controlling the on-off mechanism (4) that sealed lid (34) opened and close are provided with in the lower terminal surface of suspension frame (3) evenly, the lower extreme level of installation pole (31) is provided with dead lever (32), be provided with upper end open-ended sample bottle (33) on dead lever (32), the upper end of sample bottle (33) is provided with sealed.
5. The process for treating domestic sewage according to claim 4, wherein: the switch mechanism (4) comprises a support frame (41) arranged on a piston rod of the air cylinder (21), and a switch frame (42) is vertically connected below the support frame (41) in a sliding manner;
the switch frame (42) and the support frame (41) are both positioned above the suspension (3), and a plurality of springs (43) are uniformly arranged on the switch frame (42) and the support frame (41);
a switch rod (44) aligned with the sealing cover (34) is vertically arranged on the lower end surface of the switch frame (42), and the lower end of the switch rod (44) is fixed on the upper end surface of the sealing cover (34);
a plurality of switch boards (45) are evenly arranged on the periphery of the switch frame (42), and the bottom wall of the pool body (1) is vertically provided with a push rod (5) which is located below the switch boards (45) and used for driving the switch boards (45) to move upwards.
6. The process for treating domestic sewage according to claim 5, wherein: the ejector rod (5) comprises a lower rod body (51) and an upper rod body (52), the lower end face of the upper rod body (52) is vertically provided with an adjusting rod (53), the upper end face of the lower rod body (51) is provided with an adjusting hole (54) for the adjusting rod (53) to slide, and the outer wall of the lower rod body (51) is in threaded connection with a bolt (55) used for pressing the outer wall of the adjusting rod (53).
7. The process for treating domestic sewage according to claim 5, wherein: a plurality of guide rods (46) are vertically arranged on the switch board (45), and guide holes (22) for the guide rods (46) to slide are formed in the support (2) in a penetrating mode.
8. The process for treating domestic sewage according to claim 7, wherein: the guide rod (46) is arranged in a hollow shape, a plurality of vent holes (47) are formed in the outer wall of the guide rod, an air blower (23) is arranged on the support (2), and a rubber pipe (24) which is communicated with the upper end of the guide rod (46) is arranged at the air outlet of the air blower (23).
9. The process for treating domestic sewage according to claim 4, wherein: the inner wall of the lower end of the tank body (1) is horizontally and rotatably connected with a supporting shaft (11), the supporting shaft (11) is rotatably connected with a mounting wheel (12), and the side walls of two ends of the mounting wheel (12) are respectively provided with a plurality of stirring blades (13);
a pull rope (14) is wound on the outer wall of the mounting wheel (12), the pull rope (14) is fixed on the lower end face of the suspension (3), and a torsion spring (15) fixed on the outer wall of the supporting shaft (11) is arranged on the outer wall of the mounting wheel (12).
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