CN214654298U - Sewage treatment removes algae system - Google Patents
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- CN214654298U CN214654298U CN202120163066.8U CN202120163066U CN214654298U CN 214654298 U CN214654298 U CN 214654298U CN 202120163066 U CN202120163066 U CN 202120163066U CN 214654298 U CN214654298 U CN 214654298U
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Abstract
The utility model discloses a sewage treatment algae removal system, which comprises a pretreatment unit, a middle lift pump room, a deep treatment unit, a subsequent treatment unit and a dosing device; the pretreatment unit, the middle lift pump room, the depth treatment unit and the subsequent treatment unit are sequentially connected through pipelines; the dosing device comprises a medicament tank, a discharge pump, a flowmeter and a dosing pipe, wherein the medicament tank, the discharge pump and the flowmeter are sequentially connected through a pipeline, and finally connected with the middle lifting pump room through the dosing pipe. The utility model discloses an add high-efficient disinfectant at middle elevator pump room, kill thallus and algae cell in the water through high-efficient disinfectant, restrained the growth of alga and moss from the root, eliminated and restrained the phenomenon that the alga propagated in a large number in sewage treatment process, practiced thrift the treatment cost who gets rid of the alga, guaranteed the cleaner production of sewage advanced treatment process, improved the effect of going out water view and play water quality of water.
Description
Technical Field
The utility model relates to a sewage treatment technology especially relates to a sewage treatment removes algae system.
Background
With the increasing importance of governments and society on urban civilized construction and environmental protection, in order to respond to the call of the ten water policies of the state institute, the construction and upgrading reconstruction of municipal sewage treatment plants in various cities and regions gradually enters the peak, and the reconstruction and expansion force of sewage treatment facilities is continuously increased. Advanced treatment zones for sewage treatment are also increasingly commonly applied in upgrading projects in order to achieve the designed water target of the primary A standard (GB 18918-2002). However, investigation and research results show that in a sewage treatment plant adopting the activated sludge process, the surfaces of system structures of the sewage treatment plant are all bred and propagated by algae such as moss to different degrees, and the phenomenon is very obvious in an advanced treatment area and is a very common phenomenon; the main reason for this phenomenon is that in the pretreatment stage of sewage treatment, the water body is in an anoxic state due to the high content of pollutants and the short retention time, which are not favorable for the growth of algae; also, in the biological reaction tank, the water body is stirred vigorously, and the algae have no stable attachment points, so the growth of the algae is not facilitated. However, the water in the advanced treatment area has good water quality and smooth water flow because of biological treatment, and algae breed from the water and extend backwards to the subsequent treatment part; especially, algae appear on the inclined plates of the inclined plate sedimentation in the advanced treatment area, on the water outlet weir grooves, on the flow guide weir plates, on the contact pool walls with insufficient disinfectant dosage and the like. Particularly, the temperature rises in summer, the sunlight irradiation is sufficient, a large amount of algae grows, the burden of a deep treatment area and a post-treatment unit can be increased after the algae fall off, the filtering performance of the filter tank is influenced, and meanwhile, the contents of SS, COD, TP and the like in water can be increased by the fallen algae, so that the subsequent disinfection effect is influenced, and the effluent landscape and the effluent quality are seriously influenced;
in the current stage, a plurality of sewage plants adopt measures such as manual cleaning and fishing, mechanical washing and top covering to treat the algae, wherein the manual cleaning and fishing takes longer time, the labor intensity is higher, the safety risk is higher, the algae needs to be cleaned off line and then fished out, but part of the algae (such as a sloping plate layer area) can not be thoroughly cleaned, and the algae grows rapidly and needs to be cleaned and fished frequently, so that the production operation is influenced; mechanical washing is generally suitable for simple working conditions, the applicability to complex working conditions is poor, and mechanical equipment also needs to be cleaned manually at regular intervals; the top cover is based on sunlight and temperature in the basic element nutrient substances of the algae production, is theoretically feasible, but the actual effect is not ideal; moreover, because the algae growth position is embarrassed and sensitive, the measures are not very effective on the premise of not influencing biological treatment, and the growth of the algae and the moss cannot be fundamentally inhibited;
in view of the above circumstances, there is a need in the art to develop a long-term effective algae removal system suitable for a sewage treatment process, which can inhibit the growth of algae from the root, eliminate the phenomenon of mass propagation of algae in the sewage treatment process, ensure the clean production of the sewage advanced treatment process, improve the effluent landscape and the effluent quality, and save the algae treatment cost.
SUMMERY OF THE UTILITY MODEL
The defect that exists among the prior art, the utility model aims at providing a sewage treatment removes algae system, mainly to the phenomenon of breeding of sewage advanced treatment unit alga, throw high-efficient disinfectant at the middle elevator pump room between biological reaction pond and high-efficient sedimentation tank, thallus and algae cell in the water are killed through high-efficient disinfectant, the growth of alga and moss has been restrained from the root, the phenomenon of alga breed in a large number in sewage treatment process has been eliminated, the treatment cost of alga has been practiced thrift, the cleaner production of sewage advanced treatment process has been guaranteed, go out water view and play water quality of water has been improved.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a sewage treatment algae removal system, which comprises a pretreatment unit, a middle lift pump room, a deep treatment unit, a subsequent treatment unit and a dosing device;
the pretreatment unit, the middle lifting pump room, the depth treatment unit and the subsequent treatment unit are sequentially connected through pipelines;
the dosing device comprises a medicament tank, a discharge pump, a flowmeter and a dosing pipe, wherein the medicament tank, the discharge pump and the flowmeter are sequentially connected through a pipeline, and finally the dosing pipe is connected with the middle lifting pump room.
Preferably, the dosing device is arranged in a chlorination dosing room of the advanced treatment unit.
Preferably, the pretreatment unit comprises a water inlet pump room, a coarse grid, a fine grid, a grit chamber, a metering tank and a biological reaction tank which are sequentially connected through a pipeline and accessories;
the upper parts of the fine grid and the grit chamber are connected with an overflow water storage tank, and the bottom parts of the fine grid and the grit chamber are connected with a comprehensive tank;
the comprehensive pool is divided into a comprehensive pool A area and a comprehensive pool B area, the comprehensive pool A area is connected with the metering tank, and the comprehensive pool B area is connected with the middle lifting pump room;
and the biological reaction tank is respectively connected with the comprehensive tank B area and the middle lifting pump room through pipelines.
Preferably, the advanced treatment unit further comprises a high-efficiency sedimentation tank, a denitrification deep bed filter, a carbon source adding room, a backwashing fan room and a backwashing wastewater pool;
the high-efficiency sedimentation tank is respectively connected with the middle lifting pump room and the denitrification deep bed filter;
the chlorine adding and medicine adding room is connected with the high-efficiency sedimentation tank through a pipeline, and PAC and/or PAM are added into the high-efficiency sedimentation tank;
and the carbon source adding room, the backwashing fan room and the backwashing wastewater tank are respectively connected with the denitrification deep bed filter tank through pipelines.
Preferably, the subsequent treatment unit comprises a chlorine adding contact tank, a water outlet pump room, a water outlet metering well and a water outlet high-level well which are sequentially connected through pipelines;
the chlorine adding contact tank is connected with the chemical adding device.
Preferably, the dosing device adds sodium hypochlorite to the middle lift pump room and the chlorine adding contact tank.
The utility model has the advantages that:
1. the utility model discloses a sewage treatment removes algae system, mainly aim at the advanced wastewater treatment unit alga and breed the phenomenon, throw high-efficient disinfectant in the middle elevator pump room between biological reaction pond and high-efficient sedimentation tank, kill thallus and algae cell in the water through high-efficient disinfectant, restrained the growth of alga and moss from the root, eliminated the phenomenon that the alga breeds in a large number in sewage treatment process section, practiced thrift the treatment cost who removes the alga, guaranteed the cleaner production of advanced wastewater treatment process, improved the view and gone out water quality of water;
2. the sewage treatment algae removal system adopts the mode of adding chemical agents to the sewage advanced treatment process unit in a preposed manner, and can play a role in inhibiting the growth of algae and moss in the sewage treatment process; the effect is greatly improved visually, the bad sense organ generated by algae breeding is reduced, and the effluent effect of the weir trough of the high-efficiency sedimentation tank and the subsequent treatment facility presents better appreciation; from the aspect of water quality, the fluctuation influence of the algae on the indexes of effluent quality SS, COD, TP and the like after the algae are peeled off is reduced; from the aspect of operation, more frequent manual cleaning is reduced, and the economic cost is saved;
3. compared with manual dredging, the sewage treatment algae removal system saves labor cost on one hand and reduces the potential safety hazard of manual pond descending on the other hand; from the analysis of labor economic cost, the labor cost is saved by 70 ten thousand yuan every year.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic view of the sewage treatment algae removal system of the present invention;
FIG. 2 is a schematic structural view of the algae removal system for sewage treatment of the present invention;
fig. 3 is a schematic structural diagram of a sewage treatment algae removal system of a certain wastewater treatment plant in an embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way.
As shown in fig. 1, the sewage treatment algae removal system 100 of the present invention comprises a pretreatment unit 110, a middle lift pump room 120, a deep treatment unit 130, a subsequent treatment unit 140 and a chemical adding device 150;
as shown in fig. 2, the pretreatment unit 110, the middle lift pump room 120, the advanced treatment unit 130, and the subsequent treatment unit 140 are connected in sequence by pipes; the dosing device 150 comprises a medicament tank 151, a discharge pump 152, a flow meter 153 and a dosing pipe 154, wherein the medicament tank 151, the discharge pump 152 and the flow meter 153 are sequentially connected through a pipeline and finally connected with the middle lifting pump room 120 through the dosing pipe 154; the dosing device 150 is specifically arranged in the chlorination dosing room 133 of the advanced treatment unit 140, and doses the chemicals into the middle lift pump room 120 and the chlorination contact tank 141 of the subsequent treatment unit 140 through the dosing pipe 154.
Wherein, the medicament tank 151 can store high-efficiency disinfectants, such as sodium hypochlorite, which is convenient for killing bacteria, viruses, algae cells and the like in the sewage, radically inhibits the growth and reproduction of moss and algae, and can reduce the influence of the falling algae on advanced treatment and subsequent treatment and reduce the influence on water quality; sodium hypochlorite is sodium hypochlorite with a chemical formula of NaClO, is a strong oxidant and is a very broad-spectrum efficient disinfectant; because it has good affinity with water and can be mutually dissolved with water in any proportion, sodium hypochlorite is used as a real strong oxidant with high efficiency, broad spectrum and safety at present and is widely applied to the fields of health and epidemic prevention such as human and animal medical treatment and the like.
For example, drinking water disinfection, epidemic focus disinfection, sewage treatment, livestock and poultry farm disinfection and the like, the principle of sterilization and algae inhibition is mainly that hypochlorous acid is formed through the hydrolysis of the bacteria, the hypochlorous acid is further decomposed to form nascent oxygen [ O ], and the protein in thalli and algae cells is denatured by the strong oxidizability of the nascent oxygen, so that the bacteria and the algae cells are killed; according to chemical measurement, the hydrolysis of sodium hypochlorite is influenced by pH value, when the pH value is over 9.5, the generation of hypochlorous acid is not favorable, and for the sodium hypochlorite with ppm concentration, the sodium hypochlorite is almost completely hydrolyzed into hypochlorous acid in water, and the efficiency is higher than 99.99%. The process can be simply expressed by the following chemical equations (1) and (2):
NaClO+H2O→HClO+NaO (1)
HClO→HCl+[O] (2)
secondly, hypochlorous acid can not only act on cell walls and virus shells in the sterilization and virus killing processes, but also has small molecules and no electric charge due to hypochlorous acid, and can permeate into bacteria (viruses) to perform oxidation reaction with bacteria (virus) body proteins, nucleic acid, enzyme and the like or destroy the phosphate dehydrogenase of the bacteria (viruses) body proteins, nucleic acid, enzyme and the like, so that sugar metabolism is disordered to cause cell death, and pathogenic microorganisms are killed, wherein the process can be simply expressed as follows through a chemical equation (3):
R-NH-R+HClO→R2NCl+H2o (bacterial protein) (3)
The higher the concentration of sodium hypochlorite added in the process is, the stronger the sterilization effect is; meanwhile, the chloride ions generated by hypochlorous acid can also obviously change the osmotic pressure of bacteria and virosomes, so that the cells of the bacteria and the virosomes lose activity and die.
As shown in fig. 1 and 2, the pretreatment unit 110 includes a water inlet pump room and a coarse grid 111, a fine grid and grit chamber 112, a metering tank 114 and a biological reaction tank 115 which are connected in sequence by pipes; wherein the upper part of the fine grid and grit chamber 112 is connected with an overflow water storage tank 116, and the bottom part is connected with a comprehensive tank 113; the comprehensive pool is divided into a comprehensive pool A area 1131 and a comprehensive pool B area 1132, the top of the comprehensive pool A area 1131 is connected with the metering tank 114, and the comprehensive pool B area 1132 is connected with the middle lift pump room 120; the biological reaction tank is respectively connected with the comprehensive tank B area 1132 and the middle lifting pump room 120 through pipelines; the pretreatment unit 110 is also provided with an overflow water storage tank 116 for adjusting the water storage capacity, and the overflow water storage tank 116 is respectively connected with the fine grid and grit chamber 112 and the metering tank 114 through pipelines; in the pretreatment unit 110, the sewage is subjected to water inlet pump house, the coarse grid 111, the fine grid and the grit chamber 112 to intercept large suspended or floating solid pollutants and inorganic particles with high density in the sewage so as to reduce the influence of the substances on the whole processes of subsequent biological treatment, advanced treatment and the like, and then the organic pollutants in the sewage are degraded and converted into harmless substances through the biological reaction tank to further purify the sewage;
as shown in fig. 1 and fig. 2, the pretreated sewage is transported to the middle lift pump room 120 through a pipeline, and then a high-efficiency disinfectant (such as NaClO) is added to the sewage of the middle lift pump room 120 through a chemical adding device 150, so as to kill or inhibit the growth of bacteria and algae cells in the water body;
as shown in fig. 1 and fig. 2, the advanced treatment unit 130 comprises an efficient sedimentation tank 131, a denitrification deep bed filter 132, a chlorination dosing room 133, a carbon source dosing room 134, a backwashing fan room 135 and a backwashing wastewater tank 136; wherein the high-efficiency sedimentation tank 131 is respectively connected with the middle lift pump room 120 and the denitrification deep bed filter 132; the chlorine adding and dosing room 133 is connected with the efficient sedimentation tank 131 through a pipeline, and PAC (polyaluminium chloride) and/or PAM (polyacrylamide) are/is added into the efficient sedimentation tank 131; the carbon source adding room 134, the backwashing fan room 135 and the backwashing wastewater tank 136 are respectively connected with the denitrification deep bed filter 132 through pipelines. In the advanced treatment unit 130, the sewage from the middle lift pump room 120 sequentially enters the high-efficiency sedimentation tank 131 and the denitrification deep bed filter 132 for treatment, solid suspended matters, total phosphorus and total nitrogen in the sewage are subjected to advanced treatment by adopting physical and chemical treatment and biological methods respectively, the contents of the solid suspended matters, the total phosphorus and the total nitrogen in the sewage are removed, and the water body is further purified;
as shown in fig. 1 and 2, the post-treatment unit 140 includes a chlorination contact tank 141, an effluent pump room 142, an effluent metering well 143 and an effluent high-level well 144 which are connected in sequence through pipes; wherein the chlorine adding contact tank 141 is connected with the medicine adding device 150; in the subsequent treatment unit 140, the sewage after advanced treatment enters the chlorine contact tank 141, is further disinfected and purified under the action of a high-efficiency disinfectant (such as sodium hypochlorite), and is discharged after reaching the standard.
The utility model discloses an foretell sewage treatment removes algae system and carries out sewage and remove algae processing, its processing procedure includes following step:
(1) pretreatment, the sewage enters a pretreatment unit 110 for treatment to obtain pretreated sewage,
the specific process is as follows: the sewage is processed by a water inlet pump room, a coarse grating 111, a fine grating and a grit chamber 112 to intercept massive suspended or floating solid pollutants and inorganic particles with larger density in the sewage, then the organic pollutants in the sewage are degraded and converted into harmless substances by a biological reaction tank, and the sewage is further purified to obtain pretreated sewage;
(2) the pretreated sewage is conveyed to a middle lifting pump room 120 through a pipeline, and sodium hypochlorite is added into the pretreated sewage through a chemical adding device 150 to carry out sterilization and algae inhibition treatment;
the specific process is as follows: after the pretreated sewage treated by the pretreatment unit 110 enters the middle lift pump room 120, the pretreated sewage is sterilized and algae-inhibiting treated under the action of sodium hypochlorite, wherein the mass concentration of effective chlorine in the sodium hypochlorite is 10%, and the addition amount of the sodium hypochlorite is 10mg/L (the addition amount of the sodium hypochlorite in each liter of pretreated sewage is 10 mg).
(3) And (3) performing advanced treatment and disinfection, wherein the pretreated sewage treated in the step (2) enters an advanced treatment unit 130 through a pipeline for treatment to further remove solid suspended matters and total phosphorus in the sewage, then enters a subsequent treatment unit 140 for disinfection by adding sodium hypochlorite, and is discharged after reaching the standard.
The specific process is as follows: the sewage treated by the middle lift pump house sequentially enters a high-efficiency sedimentation tank 131 and a denitrification deep-bed filter 132 for treatment, solid suspended matters, total phosphorus and total nitrogen in the sewage are deeply treated by adopting physical and chemical treatment and biological methods respectively, the contents of the solid suspended matters, the total phosphorus and the total nitrogen in the sewage are removed, and the water body is further purified; then enters a chlorine contact tank 141 for further disinfection and purification treatment, and is discharged after reaching the standard.
The sewage treatment algae removal system of the utility model is further introduced by the following specific examples;
examples
As shown in fig. 3, a sewage treatment algae removal system 200 in a wastewater treatment plant comprises a pretreatment unit 210, an intermediate lift pump house 220, a deep treatment unit 230, a subsequent treatment unit 240 and a dosing device 250;
as shown in fig. 3, the pretreatment unit 210 includes a coarse grid and water inlet pump room 211, a fine grid and grit chamber 212, a pasteurism measuring tank 214, an integrated biological reaction tank 215, a comprehensive tank 213, and an overflow water storage tank 216, wherein the coarse grid and water inlet pump room 211, the fine grid and grit chamber 212, the pasteurism measuring tank 214, and the integrated biological reaction tank 215 are sequentially connected through a pipeline, the top of the fine grid and grit chamber 212 is connected with the overflow water storage tank 216 through a pipeline, and the lower part thereof is connected with a comprehensive tank a area 2131 through a pipeline; the upper part of the comprehensive pool A area 2131 is connected with the Pasteur measuring tank 214 through a pipeline, and the comprehensive pool B area 2132 is connected with the integrated biological reaction pool 215 and the middle lift pump room 220 through pipelines;
as shown in fig. 3, the middle lift pump house 220 is connected with the high efficiency settling tank 231 of the advanced treatment unit 230 through a pipe; the medicine adding device 250 adds a medicine to the middle lift pump room 220, wherein the medicine adding device 250 comprises a medicine tank (a sodium hypochlorite storage tank), a discharge pump, a flow meter and a medicine adding pipe 254, the medicine tank, the discharge pump and the flow meter are sequentially connected through a pipeline, and are finally connected with the middle lift pump room 220 through the medicine adding pipe 254, and the medicine is added to the middle lift pump room 220;
as shown in fig. 3, the advanced treatment unit 230 comprises a high-efficiency sedimentation tank 231, a denitrification deep bed filter 232, a chlorination dosing room 233, a sodium acetate dosing room 234 (carbon source dosing room), a backwashing fan room 235 and a backwashing wastewater tank 236; wherein the high-efficiency sedimentation tank 231 is connected with the denitrification deep bed filter 232 through a pipeline, and during the sewage treatment process, the chlorination dosing room 233 adds PAC and PAM into the high-efficiency sedimentation tank 231 through the pipeline, so that solid suspended matters and total phosphorus can be further removed from the water body; in the process of treating sewage, the denitrification deep bed filter 232 adds sodium acetate to supplement a carbon source through a sodium acetate adding chamber 234 so that the sewage reaches the standard of first-grade A (GB 18918-2002);
the efficient sedimentation tanks of the wastewater treatment plant are divided into 2 groups, are symmetrically arranged, are communicated at the tops, are not shielded at the peripheries, and are open in the whole tank; single group size of 20 km3And d, each group of the filter tanks has 8 grids with 4 grids, and the net size of each grid is 16.0m multiplied by 16.0 m. The plane size of the denitrification deep bed filter is 82.5m multiplied by 45.1m, the denitrification deep bed filter is divided into two groups of east and west independent treatment areas, each group of filter is 22 filter, the periphery of the filter is not shielded, and the whole filter is open. 9 sodium hypochlorite storage tanks are arranged in a chlorination dosing room, 1 sodium hypochlorite storage tank is arranged in 3 sodium hypochlorite dosing rooms, each sodium hypochlorite storage tank is matched with one sodium hypochlorite discharge pump, and 1 sodium hypochlorite storage tank is used for 2; the chemical adding amount of sodium hypochlorite is designed to be 10mg/L, the consumption is designed to be 40 tons/day, and the effective chlorine concentration is 10 percent. The configuration of the dosing device is: 9 sodium hypochlorite storage tanks, and the volume of a single tank is 20m39 sodium hypochlorite flowmeters, 6 meters with 3 meters, 500L/H of single pump performance parameter Q, 0.4Mpa of H and 0.55KW of power. Wherein, the sodium hypochlorite storage tanks (3 sets for standby) of No. 7, No. 8 and No. 9 are used as the medicament tanks of the medicament adding device, and the storage volume is 60 tons in total; 3 ejection of compact pumps of its sodium hypochlorite that correspond are as the ejection of compact pump of middle elevator pump room 220 water inlet and throw the ejection of compact pump of adding the point, and ejection of compact facility and control mode are unchangeable, finally through adding pencil 254 to middle elevator pump room entry.
As shown in fig. 3, the subsequent treatment unit 240 includes a chlorine adding contact tank 241, an effluent pump room 242, an effluent metering well 243 and an effluent high-level well 244 which are connected in sequence through pipelines, wherein the chlorine adding contact tank 241 is connected with the dosing device 250, so that a high-efficiency disinfectant (sodium hypochlorite) can be conveniently dosed in the disinfection treatment process;
the sewage treatment algae removal system is adopted for sewage treatment:
(1) under the condition that the high-efficiency disinfectant (sodium hypochlorite) is not added into the middle lift pump room 220, the algae on the water outlet weir and the inclined plate of the high-efficiency sedimentation tank 231 can be obviously observed, and the growth sign of the moss can be seen in the denitrification deep bed filter 232; after the artificial cleaning, the algae is found to breed on the surface of the weir groove again within one week, and after two weeks, the algae is drawn, floated, dragged, accumulated and enriched to be full of the weir groove and even spread to the water outlet surface of the whole inclined plate of the efficient sedimentation tank 232, the rectifying weir of the water distribution channel of the denitrification deep bed filter 231 and the inner wall of the filter.
(2) In the case where the control of the external environment is substantially consistent with that in (1), i.e., three elements of algae growth: under the condition that sunlight, temperature and nutrient substances are added into the middle lift pump room 220, and high-efficiency disinfectant (sodium hypochlorite) is added into the middle lift pump room 220, the situation that cleaning is not performed manually is obviously seen, only a few algae exist in the high-efficiency sedimentation tank 231 and the denitrification deep bed filter 232 of the advanced treatment unit 230 after one week, and a mass propagation phenomenon does not occur after two weeks.
The sewage treatment algae removal system of the utility model eliminates and inhibits the mass propagation phenomenon of algae in the high-efficiency sedimentation tank and the denitrification deep bed filter tank, and ensures the clean production of the sewage deep treatment process; meanwhile, the visual effect on site is greatly improved, the water outlet effect of the weir trough of the high-efficiency sedimentation tank presents better appreciation, and the bad sense organ generated by algae breeding is reduced visually; in the aspect of water quality, the fluctuation influence of the algae on subsequent treatment units after being peeled off, even on indexes such as final effluent quality SS, COD, TP and the like is eliminated; compared with a manual cleaning mode, the potential safety hazard of manual pond descending is reduced; from the analysis of labor economic cost, the annual labor cost is saved by about 300 multiplied by 7 multiplied by 30 multiplied by 12 to 75.6 ten thousand yuan; from the aspect of operation, more frequent manual cleaning is reduced, and economic cost is saved.
To sum up, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (6)
1. A sewage treatment algae removal system is characterized by comprising a pretreatment unit, a middle lifting pump room, a deep treatment unit, a subsequent treatment unit and a dosing device;
the pretreatment unit, the middle lifting pump room, the depth treatment unit and the subsequent treatment unit are sequentially connected through pipelines;
the dosing device comprises a medicament tank, a discharge pump, a flowmeter and a dosing pipe, wherein the medicament tank, the discharge pump and the flowmeter are sequentially connected through a pipeline, and finally the dosing pipe is connected with the middle lifting pump room.
2. The sewage treatment algae removal system of claim 1, wherein the dosing device is disposed in a chlorination dosing compartment of the advanced treatment unit.
3. The sewage treatment algae removal system of claim 1, wherein the pretreatment unit comprises a water inlet pump room and a coarse grid, a fine grid and a grit chamber, a metering tank and a biological reaction tank which are connected in sequence through pipelines;
the upper parts of the fine grid and the grit chamber are connected with an overflow water storage tank, and the bottom parts of the fine grid and the grit chamber are connected with a comprehensive tank;
the comprehensive pool is divided into a comprehensive pool A area and a comprehensive pool B area, the comprehensive pool A area is connected with the metering tank, and the comprehensive pool B area is connected with the middle lifting pump room;
and the biological reaction tank is respectively connected with the comprehensive tank B area and the middle lifting pump room through pipelines.
4. The sewage treatment algae removal system of claim 2, wherein the advanced treatment unit further comprises a high-efficiency sedimentation tank, a denitrification deep bed filter, a carbon source adding room, a backwashing fan room and a backwashing wastewater tank;
the high-efficiency sedimentation tank is respectively connected with the middle lifting pump room and the denitrification deep bed filter;
the chlorine adding and medicine adding room is connected with the high-efficiency sedimentation tank through a pipeline, and PAC and/or PAM are added into the high-efficiency sedimentation tank;
and the carbon source adding room, the backwashing fan room and the backwashing wastewater tank are respectively connected with the denitrification deep bed filter tank through pipelines.
5. The sewage treatment algae removal system of claim 1, wherein the subsequent treatment unit comprises a chlorination contact tank, an effluent pump room, an effluent metering well and an effluent high-level well which are connected in sequence through pipelines;
the chlorine adding contact tank is connected with the chemical adding device.
6. The sewage treatment algae removal system of claim 5, wherein the dosing device adds sodium hypochlorite to the intermediate lift pump room and the chlorine adding contact tank.
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| CN114804502A (en) * | 2021-01-21 | 2022-07-29 | 上海城投污水处理有限公司 | Sewage treatment algae removal system and algae removal method |
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