CN213231780U - Sewage treatment equipment and movable sewage treatment device - Google Patents
Sewage treatment equipment and movable sewage treatment device Download PDFInfo
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- CN213231780U CN213231780U CN202020374816.1U CN202020374816U CN213231780U CN 213231780 U CN213231780 U CN 213231780U CN 202020374816 U CN202020374816 U CN 202020374816U CN 213231780 U CN213231780 U CN 213231780U
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Abstract
The utility model relates to a sewage treatment device and a movable sewage treatment device. This sewage treatment device includes: the sewage collecting tank is used for collecting sewage to be treated; the pretreatment reactor is communicated with the sewage collecting tank and is used for carrying out oxidation treatment on the sewage from the sewage collecting tank; the flocculation settling tank is communicated with the pretreatment reactor and is used for carrying out flocculation settling treatment on the sewage from the pretreatment reactor to form an upper-layer sewage clarified liquid and a bottom-layer sewage suspension; the filter is communicated with the flocculation settling tank and is used for filtering the bottom layer sewage suspension subjected to flocculation settling treatment; the adsorber is communicated with the flocculation settling tank and the filter and is used for adsorbing the supernatant sewage after flocculation precipitation treatment and the bottom sewage suspension after filtration treatment. This sewage treatment device can carry out rapid treatment to sewage, reduces the risk that chemical accident takes place and reduces the purpose of waste water treatment economic burden.
Description
Technical Field
The utility model relates to a sewage treatment technical field, in particular to sewage treatment device and portable sewage treatment plant.
Background
A large amount of chemical or biological wastewater generated by experiments in universities and scientific research institutions needs to be strictly stored in time or strictly treated, and if the wastewater is directly discharged, the wastewater has great influence on the natural environment, particularly underground water sources, and even seriously harms the life health of residents. Thus, laboratory-generated wastewater requires strict classification and storage and transportation by a specific treatment company, strictly prohibiting direct discharge into municipal water networks. A great deal of risk problems exist in the storage process, the requirement on the storage environment is high, and safety accidents are easily caused by the accumulation of excessive waste water. In addition, the transportation and handling of the processing company also requires a lot of manpower and financial resources, and there is still a great risk of movement during the transportation, especially the risk of hazardous chemicals polluting the water. Therefore, the urgent need develops a laboratory sewage rapid treatment device, so can realize that the direct emission of laboratory sewage is to municipal water net, reprocesses with the help of national water conservancy processing system to reduce the risk that chemical accident takes place and reduce the purpose of waste water treatment economic burden.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a sewage treatment apparatus and a movable sewage treatment device. This sewage treatment device can carry out the rapid processing to sewage, so can realize that the direct emission of sewage is to municipal water net, reprocesses with the help of national water conservancy processing system to reduce the risk that the chemical accident takes place and reduce the purpose of waste water treatment economic burden.
A sewage treatment apparatus comprising:
the sewage collecting tank is used for collecting sewage to be treated;
the pretreatment reactor is communicated with the sewage collecting tank and is used for carrying out oxidation treatment on the sewage from the sewage collecting tank;
the flocculation settling tank is communicated with the pretreatment reactor and is used for carrying out flocculation settling treatment on the sewage from the pretreatment reactor to form an upper-layer sewage clarified liquid and a bottom-layer sewage suspension;
the filter is communicated with the flocculation settling tank and is used for filtering bottom layer sewage suspension subjected to flocculation precipitation treatment;
and the adsorber is communicated with the flocculation settling tank and the filter and is used for adsorbing the supernatant sewage clarified liquid subjected to the flocculation precipitation treatment and the bottom sewage turbid liquid subjected to the filtration treatment.
In one embodiment, the sewage treatment equipment further comprises three reagent boxes, the three reagent boxes are respectively a first reagent box, a second reagent box and a third reagent box, the first reagent box is used for placing peroxide, the second reagent box is used for placing auxiliaries, the third reagent box is used for placing a flocculating agent, the first reagent box and the second reagent box are respectively communicated with the pretreatment reactor, and the third reagent box is communicated with the flocculation settling tank.
In one embodiment, the peroxide is hydrogen peroxide, and the auxiliary agent is one or more of an inorganic salt containing copper ions, an inorganic salt containing ferrous ions, molybdate and molybdenum disulfide; the flocculant is a combination of chitosan, polymeric aluminum iron and cationic polyacrylamide.
In one embodiment, the number of the pretreatment reactors is at least two, each pretreatment reactor is sequentially connected in series, and each pretreatment reactor is respectively communicated with the sewage collecting tank.
In one embodiment, the number of filters is two, and two of the filters are connected in parallel with each other.
In one embodiment, the sewage treatment apparatus further includes a sludge concentration tank, and the sludge concentration tank is communicated with the filter, so that the filtered sludge enters the sludge concentration tank for concentration treatment.
In one embodiment, the number of the adsorbers is two, and the two adsorbers are connected in series in sequence.
In one embodiment, the adsorber comprises a filter membrane and a filter material, the filter membrane is a microfiltration membrane, and the filter material is a ceramsite filter material and a zeolite filter material, wherein the mass ratio of the ceramsite filter material to the zeolite filter material is 1: (5-15), and the particle size of the ceramsite filter material is 3-5 mm, and the particle size of the zeolite filter material is 1-2 mm.
In one embodiment, the sewage treatment apparatus further comprises a detector for detecting physicochemical properties of the sewage.
In one embodiment, the number of the detectors is two, and the detectors are respectively a first detector and a second detector, the first detector is arranged in the sewage collecting tank and is used for detecting the physicochemical property of the sewage to be treated, and the second detector is arranged at the water outlet of the adsorber and is used for detecting the physicochemical property of the sewage after adsorption treatment.
A movable sewage treatment device comprises a carrier and the sewage treatment equipment arranged on the carrier, wherein the carrier is provided with a moving part so as to realize the movement of the movable sewage treatment device.
In one embodiment, the moving part is a reverse braking wheel.
Above-mentioned sewage treatment device can make sewage carry out oxidation treatment, flocculation and precipitation, filtration treatment and adsorption treatment in proper order through setting up preliminary treatment reactor, flocculation and precipitation jar, filter and adsorber, effectively improves the treatment effeciency of sewage, so can realize that the direct of sewage discharges to municipal water network, reprocesses with the help of national water conservancy processing system to reduce the risk that the chemical accident takes place and reduce the purpose of waste water treatment economic burden. Especially for the treatment of laboratory sewage, the effect is especially outstanding. The sewage treatment equipment is simple and portable, does not have complex instruments and equipment, is low in cost, is convenient to move, has low requirement on geographical positions, and has high application value.
Drawings
FIG. 1 is a schematic view of a sewage treatment apparatus according to an embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully below, and preferred embodiments of the present invention will be described. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The utility model relates to an embodiment's sewage treatment device 10, include: a sewage collection tank 110, a pretreatment reactor 120, a flocculation settling tank 130, a filter 140 and an adsorber 150.
Wherein, the sewage collecting tank 110 is used for collecting sewage to be treated. It is understood that the capacity, shape and material of the wastewater collecting tank 110 can be adjusted according to specific requirements, and are not particularly limited herein. The sewage collecting tank 110 can be directly used as a waste liquid cylinder, so that an experimenter can directly pour waste liquid generated in the experimental process into the sewage collecting tank 110, and pollution and toxic effects generated in the sewage transfer process can be reduced.
The pretreatment reactor 120 is in communication with the wastewater collection tank 110 for oxidizing wastewater from the wastewater collection tank 110. Further, the oxidation treatment in the pretreatment reactor 120 is a peroxidation treatment, and the wastewater treatment efficiency can be greatly improved by performing advanced oxidation using a peroxide.
Further, it is preferable that the number of the pretreatment reactors 120 is at least two, and each pretreatment reactor 120 is connected in series in order to enable each pretreatment reactor 120 to be operated cyclically.
Further, the number of the pretreatment reactors 120 is three, and the three pretreatment reactors 120 are sequentially connected in series, so that when one pretreatment reactor 120 is full, the sewage enters the next pretreatment reactor 120, thereby increasing the sewage treatment amount and improving the treatment efficiency.
In addition, the volume of the pretreatment reactor 120 can be adjusted according to the requirement, and is not particularly limited, and the solvent of the pretreatment reactor 120 is preferably 30L to 50L, and more preferably 40L to meet the laboratory requirement.
Further, the above-mentioned sewage treatment apparatus 10 further comprises a chemical tank 160 for holding pre-added reagents, so that the whole sewage treatment is in a closed system, which avoids the pollution to the environment during the sewage treatment process, especially for laboratory sewage treatment.
Further, there are three chemical tanks 160, two of which are a first chemical tank 161 and a second chemical tank 162, the first chemical tank 161 is used for placing peroxide, the second chemical tank 162 is used for placing auxiliary agent, and the first chemical tank 161 and the second chemical tank 162 are respectively communicated with the pretreatment reactor 120, so that the peroxide in the first chemical tank 161 and the auxiliary agent in the second chemical tank 162 are mixed with the sewage to be treated in the pretreatment reactor 120.
Through setting up first chemical tank 161 and second chemical tank 162 respectively, with each medicament partaking device, when needs, mix again, can conveniently adjust the concentration of each reagent according to the demand to and the velocity of flow of the entering preliminary treatment reactor of each reagent. Further, it is preferable that the flow rate of the peroxide in the first chemical tank 161 to the pretreatment reactor 120 is 5 to 20L/h, more preferably 20L/h; the flow rate of the auxiliary agent of the second agent box 162 flowing into the pretreatment reactor 120 is 5 to 20L/h, and more preferably 15L/h.
It will be appreciated that corresponding valves may be provided in the first and second reservoirs 161, 162 to regulate the rate of addition of the medicament. In addition, the first and second chemical tanks 161 and 162 may be divided into a plurality of sub-chemical tanks, respectively, to separately store reagents or separately store reagent concentrations, and selectively add desired substances through valves or manual control. For example: the first chemical tank 161 may be divided into a plurality of sub-chemical tanks, each of which contains hydrogen peroxide of different concentrations, and hydrogen peroxide of corresponding concentration is selectively added according to the sewage condition; the second chemical tank 162 may be divided into a plurality of sub-chemical tanks, each of which contains different kinds of auxiliary agents, such as a sub-chemical tank containing a catalyst, a sub-chemical tank containing a sustained release agent, and a sub-chemical tank containing a pH adjuster, and the like, and is not particularly limited herein.
It will be appreciated that corresponding valves, metering pumps, etc. may be provided between each of the reagent tanks 160 and the pretreatment reactor 120 to effect control of the reagent amounts. A level or weight sensor may also be provided in each of the tanks 160 to sense the amount of reagent in the tank and to issue a corresponding alert.
The reagents contained in the first reagent kit 161 and the second reagent kit 162 may be solid reagents or liquid reagents, preferably liquid reagents, and the desired reagents may be prepared into a solution and then added to the corresponding reagent kits.
Further, it is preferable that the peroxide in the first chemical tank 161 is hydrogen peroxide; still further, hydrogen peroxide at a concentration of greater than or equal to 30% is preferred; further, hydrogen peroxide at a concentration of 35% is preferred.
Further, it is preferable that the auxiliary agent in the second kit 162 is one or more of a catalyst and a corrosion inhibitor; furthermore, the auxiliary agent at least comprises a catalyst; furthermore, the concentration of the auxiliary agent in the disinfectant is 1 per thousand-1%. Wherein the catalyst can be a metal ion catalyst (preferably Fe)2+、Cu2+) Or a metal salt catalyst (preferably sodium molybdate). In addition, can also addThe promoter is preferably molybdenum disulfide. The content of the catalyst is not particularly limited herein, and may be adjusted depending on the particular reagent used. The corrosion inhibitor can be conventional in the field, and preferably water-soluble benzotriazole is used.
And a flocculation settling tank 130, which is communicated with the pretreatment reactor 120 and is used for performing flocculation settling treatment on the sewage from the pretreatment reactor 120 to form an upper-layer sewage clarified liquid and a bottom-layer sewage suspension.
It should be noted that the terms "bottom sewage suspension" and "upper sewage clarified liquid" are to be understood as meaning generally in the art, and the term "bottom sewage suspension" refers to lower sewage on which sludge is precipitated, and the term "upper sewage clarified liquid" refers to upper clear liquid, and the boundary between two layers of sewage is not particularly limited, and may be divided as necessary, and should not be construed as limiting the present invention.
It is understood that when there are a plurality of pretreatment reactors 120, several pretreatment reactors 120 may all be in communication with the flocculation settling tank 130, or only the pretreatment reactor 120 connected in series at the tail end may be in communication with the flocculation settling tank 130, and all should be understood to be within the scope of the present invention. When several pretreatment reactors 120 are connected to the flocculation settling tank 130, a corresponding valve may be provided at the outlet end of each pretreatment reactor 120, so as to control the amount, flow rate, etc. of the sewage entering the flocculation settling tank 130.
Further, another chemical tank 160 of the sewage treatment apparatus 10 is a third chemical tank 163, and the third chemical tank 163 is communicated with the flocculation settling tank 130 for placing a flocculating agent. It will be appreciated that corresponding valves, dosage pumps, etc. may also be provided between the third tank 163 and the flocculation and sedimentation tank 130 to control the amount and flow rate of the flocculant added by the tank, etc.
The flocculant can be one or more of an inorganic flocculant, an organic flocculant and a natural polymeric flocculant and can be selected according to actual requirements. Among them, the inorganic flocculant is preferably a flocculant containing aluminum or iron, such as aluminum chloride, ferric chloride, polyaluminum ferric; the organic flocculant is preferably anionic, cationic or nonionic polyacrylamide and the like; the natural polymeric flocculant can adopt chitosan and the like.
Furthermore, in the flocculant, by mass percentage, the chitosan content is 30% -40%, the polymeric aluminum iron content is 30% -40%, and the cationic polyacrylamide content is 5% -10%.
Furthermore, the mass ratio of the chitosan, the polymeric aluminum iron and the cationic polyacrylamide is 1 (0.8-1.2) to 0.08-0.12; furthermore, the mass ratio of the chitosan to the polymeric aluminum iron to the cationic polyacrylamide is 1:1: 0.1.
A filter 140, which is communicated with the flocculation settling tank 130 and is used for filtering the bottom layer sewage after flocculation precipitation treatment; the bottom sewage through flocculation and precipitation is firstly filtered and then subjected to subsequent adsorption treatment, solid matters in sewage are removed, the treatment effect is improved, and meanwhile, the flocculation and precipitation can be effectively prevented from entering an adsorber, so that blockage is caused, and the service life of the device is prolonged.
It is understood that the supernatant treated by flocculation and precipitation may also enter the filter 140 for filtration and then enter the adsorber 150.
Further, it is preferable that the number of the filters 140 is at least two, and the filters are connected in parallel with each other; in one embodiment, there are two filters in parallel with each other, and when the flow rate drops significantly and the filter pressure increases during system operation, the other filter is turned on while the filter is deactivated. The number of filters is not particularly limited, and may be adjusted as needed, and all such filters are within the scope of the present invention.
Further, the sewage treatment apparatus 10 further includes a sludge concentration tank 170, and the sludge concentration tank 170 is communicated with the filter 140, so that the filtered sludge enters the sludge concentration tank 170 for concentration treatment, thereby avoiding environmental pollution caused by solid matters, and the concentrated solid matters can be directly used as wastes for treatment according to national standards.
Further, the above sewage treatment apparatus 10 further comprises a water storage tank for collecting the upper layer sewage treated by flocculation and sedimentation and the lower layer sewage treated by filtration.
And an adsorber 150, which is communicated with the filter 140 and the flocculation settling tank 130, and is used for performing adsorption treatment on the supernatant sewage after the flocculation precipitation treatment and the bottom sewage suspension after the filtration treatment. It can be understood that when a water storage tank for collecting supernatant liquid of the upper layer sewage subjected to the flocculation precipitation treatment and suspension liquid of the lower layer sewage subjected to the filtration treatment is provided, the adsorber 150 may be in communication with the water storage tank. Further, the adsorber 150 includes a filter membrane and a filter material, and further, the filter membrane is preferably a mixed fiber microfiltration membrane; further, the filter material is a ceramsite filter material and a zeolite filter material, and the mass ratio of the ceramsite filter material to the zeolite filter material is 1: (5-15), preferably 1: 8. furthermore, the particle size of the ceramsite filter material is preferably 3mm-5 mm; the preferred particle size of the zeolite filter material is 1mm-2 mm.
Further, the above-mentioned sewage treatment apparatus 10 may further include a detector, for example: COD on-line detector, ammonia nitrogen on-line detector, pH detector, etc. to monitor the physicochemical properties of sewage. It should be noted that the number and the arrangement position of the detectors are not particularly limited, and can be adjusted as required, and all of them are understood to be within the protection scope of the present invention. Further, the number of the detectors is preferably at least two, and the detectors are a first detector and a second detector respectively, wherein the first detector is arranged in the sewage collecting tank 110 and is used for detecting the physicochemical property of the sewage to be treated; the second detector is arranged at the water outlet of the absorber 150 and is used for detecting the physicochemical property of the sewage after the absorption treatment.
The physical and chemical properties of the sewage before and after treatment can be monitored constantly by arranging detectors at the water outlets of the sewage collecting tank 110 and the absorber 150 respectively, so that the sewage treatment condition is conveniently monitored. For example: COD removal rate of the sewage can be calculated by arranging COD on-line detectors at the water outlets of the sewage collecting tank 110 and the adsorber 150 respectively, so that the treatment condition of the sewage can be reflected more intuitively; the pH detector is arranged at the water outlet of the pretreatment reactor 120, so that the pH value of the sewage after oxidation treatment can be detected, and the pH of the sewage is adjusted by adding the pH adjusting agent according to the requirement and then is subjected to subsequent treatment, so that the sewage treatment efficiency is improved.
Furthermore, the COD measurement range of the COD on-line detector is 0-15000mg/L, the measurement range of the ammonia nitrogen on-line detector is 0-100mg/L, the detection range of the pH detector is 0-14, and the measurement precision is +/-0.002 pH. Furthermore, the model of the COD online detector is NitraVis705IQ, and the detection range is 0-800 mg/L; the model of the ammonia nitrogen online detector is VARiON Plus700IQ, and the detection range is 1-1000 mg/L.
It is understood that the term "adsorber outlet" is to be understood in a broad sense, i.e. to refer to any location on the pathway of the wastewater after adsorption treatment, such as: a clean water tank may be provided in communication with the adsorber 150 for collecting the adsorption-treated clean water, and a detector may be provided in the clean water tank. Similarly, "outlet of the pretreatment reactor" is to be understood in a broad sense, i.e., to mean any location on the path of the wastewater after oxidation treatment prior to flocculation and sedimentation.
Further, the sewage treatment device 10 may further include a cleaner, the cleaner is in communication with the adsorber 150, and the cleaner is configured to sense a detection value of the second detector, and when the detection value is lower than a predetermined value, the cleaner is activated to perform a cleaning process on the filter material in the adsorber. It is understood that the starting condition of the cleaning device is not limited to the above limitation, for example, the cleaning device can be started before the sewage treatment device 10 finishes working or starts working, and the starting condition is selected according to the setting mode of the operator, and the cleaning device is understood to be within the protection scope of the present invention. The "predetermined value" is a value set by an operator, and is, for example: the predetermined value may be a value of a relevant parameter for the effluent to meet the discharge standard.
For example: when the second detector is an ammonia nitrogen online detector, and the detection result shows that the ammonia nitrogen value reaches or is close to a preset value (such as a national ammonia nitrogen discharge standard value), the cleaner is started, and a cleaning agent (such as saline water) is used for performing backwashing cleaning treatment on the filter material so as to prolong the service life of the filter material.
Further, the sewage treatment device 10 may further include a controller 180 to implement automatic control and digital display functions of the device. The controller can be an existing controller, and is not limited herein, for example, industrial PLC control is adopted, touch screen operation can be realized, and flow rate, pressure, water quality evaluation parameters and the like can be displayed on line in real time.
Further, the treatment capacity of the sewage treatment equipment 10 is 0.1T/h-1T/h so as to meet the requirements of laboratories.
Above-mentioned sewage treatment device 10 can make sewage carry out oxidation treatment, flocculation and precipitation, filtration treatment and adsorption treatment in proper order through setting up preliminary treatment reactor 120, flocculation and precipitation jar 130, filter 140 and adsorber 150, can realize effective, the rapid processing of sewage, and then realize the direct emission of sewage to municipal water network, reprocess with the help of national water conservancy processing system to reduce the risk that the chemical accident takes place and reduce the purpose of waste water treatment economic burden. Especially for the treatment of laboratory sewage, the effect is especially outstanding. The sewage treatment equipment 10 is simple, light, free of complex instruments and equipment, low in cost, convenient to move, low in requirement on geographical positions and high in application value.
The utility model also provides a method for adopting above-mentioned sewage treatment equipment to carry out sewage treatment, including following step:
s101: adding corresponding reagents into each reagent box;
for example: peroxide is added into the first chemical box, an auxiliary agent is added into the second chemical box, and a flocculating agent is added into the third chemical box. Wherein, the oxidizing agent is preferably hydrogen peroxide, and more preferably the hydrogen peroxide with the concentration of more than or equal to 30 percent; more preferably hydrogen peroxide at a concentration of 35%. Furthermore, the paint can also comprise an auxiliary agent, and the concentration of the auxiliary agent is preferably 1 per mill to 1 percent. The specific choices of the hydrogen peroxide, the auxiliary agent and the flocculating agent are as described above, and are not described in detail herein. It should be noted that solid reagents or liquid reagents can be directly added, and all of them are understood to be within the scope of the present invention.
S102: setting the flow rate of the medicine added into each medicine chest;
further, the flow rate of the peroxide is preferably 5 to 20L/h, more preferably 20L/h; the flow rate of the auxiliary agent is 5-20L/h, more preferably 15L/h.
It is understood that when the reagent tank is not provided and the method of manually adding the reagent is directly adopted, the steps S101 to S102 may be omitted and the adding speed of the reagent may be manually controlled.
S103: and injecting sewage into the sewage collecting tank.
S104: and starting the sewage treatment equipment.
Understandably, after the sewage treatment equipment is started, sewage is treated as follows: sewage enters a pretreatment reactor from a sewage collecting tank to be subjected to oxidation treatment, then enters a flocculation precipitation tank to be subjected to flocculation precipitation treatment, then enters a filter to be subjected to filtration treatment, after the filtration treatment is finished, a blowdown valve is opened, sludge enters a sludge concentration tank (if the sludge concentration tank is provided with the sludge concentration tank) to be subjected to concentration treatment, and clear water after the filtration treatment and supernatant subjected to flocculation precipitation treatment enter an adsorber to be subjected to adsorption treatment and then are discharged.
The sewage treatment equipment is simple to operate, has low requirement on the skills of operators and has wide applicability, so the sewage treatment equipment is suitable for being widely used for sewage treatment, particularly laboratory sewage treatment.
The utility model also provides a portable sewage treatment plant, include the carrier and install the above-mentioned sewage treatment device on the carrier, and the carrier has removal portion, in order to realize portable sewage treatment plant's removal.
Further, the carrier comprises a bearing part and a moving part, the bearing part is used for bearing the sewage treatment equipment, and the moving part is used for realizing the movement of the movable sewage treatment device.
Further, the carrying part includes a bracket and a support plate mounted on the bracket, and the number, size, material and position of the support plate can be adjusted according to the need, and are not limited herein.
Further, it is preferable that the moving part is a roller; further, it is preferable that the moving part is a reverse brake wheel to facilitate fixing the sewage treatment apparatus at a desired position.
Further, the stent is quadrilateral, the length and the width are (2m +/-0.2 m) × (1m +/-0.2 m), and the height is (1.8m +/-0.2 m).
Further, the bracket is preferably made of metal.
Through installing above-mentioned sewage treatment device on portable carrier, can conveniently remove, especially, to the waste liquid collection processing of some difficult moving instrument equipment, it is especially convenient.
The present invention will be described below with reference to specific examples.
Example 1
As shown in fig. 1, the sewage treatment apparatus 10 includes: the sewage collecting tank 110, the pretreatment reactor 120, the flocculation settling tank 130, the filter 140, the sludge concentration tank 170, the adsorber 150, and the chemical tanks 160 (the first chemical tank 161, the second chemical tank 162, and the third chemical tank 163). The pretreatment reactor 120 is communicated with the sewage collection tank 110, the flocculation settling tank 130 is communicated with the pretreatment reactor 120, the filter 140 is communicated with the flocculation settling tank 130, the sludge concentration tank 170 is communicated with the filter 140, the adsorber 150 is communicated with the filter 140 and the flocculation settling tank 130, the first chemical tank 161 and the second chemical tank 162 are respectively communicated with the pretreatment reactor 120, and the third chemical tank 163 is communicated with the flocculation settling tank 130; the first chemical tank 161 is filled with 35% hydrogen peroxide, the second chemical tank 162 is filled with 1% auxiliary agent (0.095g ferrous sulfate and 0.005g molybdenum disulfide), the third chemical tank 163 is filled with 2% flocculating agent (the mass ratio of chitosan, polymeric aluminum iron and cationic polyacrylamide is 1:1:0.1), and the filter material in the adsorber 150 is ceramsite filter material and zeolite filter material in the mass ratio of 1: 8 of the mixed mixture.
The sewage treatment equipment 10 is used for treatment, and specifically comprises the following steps:
(1) preparing sewage, and adding 1.5g of KCN and 30L of water into a 40L sewage collecting tank;
(2) starting the sewage treatment equipment 10, controlling the flow rate of peroxide at 20L/h and the flow rate of the auxiliary agent at 15L/h, treating the sewage in the pretreatment reactor for 5min, and treating the sewage in the flocculation precipitation tank for 2 min;
(3) and collecting part of the treated sewage, and detecting by using a Q-CN portable cyanide detector, wherein the detection result shows that the disinfection efficiency can reach more than 99.99 percent, and the concentration of cyanide in the polluted water is lower than 5 mug/L.
Example 2
The sewage treatment apparatus was the same as in example 1
The sewage treatment equipment is adopted for treatment, and specifically comprises the following steps:
(1) preparing sewage, and adding 30g of washing powder solid powder and 30L of water into a 40L sewage collecting tank;
(2) starting the sewage treatment equipment, controlling the flow rate of peroxide at 20L/h and the flow rate of the auxiliary agent at 15L/h, treating the sewage in the pretreatment reactor for 5min, and treating the sewage in the flocculation precipitation tank for 2 min;
(3) collecting part of the treated sewage, and determining the COD of the filtered clear liquid by adopting a HJ/T399-2007 chemical oxygen demand determination-rapid digestion spectrophotometry, wherein the COD value is reduced by more than 99%, and the COD value is lower than 100mg/L, so that the municipal sewage secondary pollution discharge standard is reached.
Example 3
The sewage treatment apparatus was the same as in example 1
The sewage treatment equipment is adopted for treatment, and specifically comprises the following steps:
(1) preparing sewage, adding 2mL of sewage with the concentration of 10 into a 40L sewage collecting tank7CFU/mL Bacillus subtilis var niger and 20L water;
(2) starting the sewage treatment equipment, controlling the flow rate of peroxide at 20L/h and the flow rate of the auxiliary agent at 15L/h, treating the sewage in the pretreatment reactor for 5min, and treating the sewage in the flocculation precipitation tank for 2 min;
(3) part of the treated sewage is collected, and the killing logarithm value can reach more than 5 by utilizing a sampling culture method of disinfection technical specification (2002 edition).
Example 4
The sewage treatment apparatus was the same as in example 1
The sewage treatment equipment is adopted for treatment, and specifically comprises the following steps:
(1) preparing sewage, adding 2mL of sewage with the concentration of 10 into a 40L sewage collecting tank8CFU/mL Escherichia coli spores and 20L water;
(2) starting the sewage treatment equipment, controlling the flow rate of peroxide at 20L/h and the flow rate of the auxiliary agent at 15L/h, treating the sewage in the pretreatment reactor for 5min, and treating the sewage in the flocculation precipitation tank for 2 min;
(3) collecting part of the treated sewage, and detecting the killing logarithm value by using a sampling culture method to be more than 6.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. An apparatus for treating wastewater, comprising:
the sewage collecting tank is used for collecting sewage to be treated;
the pretreatment reactor is communicated with the sewage collecting tank and is used for carrying out oxidation treatment on the sewage from the sewage collecting tank;
the flocculation settling tank is communicated with the pretreatment reactor and is used for carrying out flocculation settling treatment on the sewage from the pretreatment reactor to form an upper-layer sewage clarified liquid and a bottom-layer sewage suspension;
the filter is communicated with the flocculation settling tank and is used for filtering the bottom layer sewage suspension subjected to flocculation precipitation treatment;
and the adsorber is communicated with the flocculation settling tank and the filter and is used for adsorbing the supernatant sewage clarified liquid subjected to the flocculation precipitation treatment and the bottom sewage turbid liquid subjected to the filtration treatment.
2. The sewage treatment device according to claim 1, further comprising three reagent tanks, wherein the three reagent tanks are respectively a first reagent tank, a second reagent tank and a third reagent tank, the first reagent tank is used for placing peroxide, the second reagent tank is used for placing auxiliaries, the third reagent tank is used for placing flocculating agents, the first reagent tank and the second reagent tank are respectively communicated with the pretreatment reactor, and the third reagent tank is communicated with the flocculation settling tank.
3. The wastewater treatment apparatus according to claim 1, wherein the number of the pretreatment reactors is at least two, each pretreatment reactor is connected in series in turn, and each pretreatment reactor is respectively communicated with the wastewater collection tank.
4. The wastewater treatment apparatus according to claim 1, wherein the number of the filters is two, and the two filters are connected in parallel with each other.
5. The sewage treatment apparatus according to claim 1, further comprising a sludge concentration tank, wherein the sludge concentration tank is communicated with the filter, so that the filtered sludge enters the sludge concentration tank for concentration treatment.
6. The wastewater treatment plant according to claim 1, wherein the number of adsorbers is two, and two adsorbers are connected in series.
7. The sewage treatment apparatus of claim 1, further comprising a detector for detecting physicochemical properties of the sewage.
8. The sewage treatment apparatus according to claim 7, wherein the number of the detectors is two, and the first detector and the second detector are respectively provided, the first detector is arranged in the sewage collection tank and used for detecting physicochemical properties of the sewage to be treated, and the second detector is arranged at the water outlet of the adsorber and used for detecting physicochemical properties of the sewage subjected to adsorption treatment.
9. A movable sewage treatment apparatus comprising a carrier and the sewage treatment device of any one of claims 1 to 8 mounted on the carrier, and the carrier has a moving portion to effect movement of the movable sewage treatment apparatus.
10. The mobile sewage treatment apparatus of claim 9 wherein the moving portion is a reverse braked wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020374816.1U CN213231780U (en) | 2020-03-23 | 2020-03-23 | Sewage treatment equipment and movable sewage treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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