CN107235584B - Novel drinking water treatment process and system thereof - Google Patents
Novel drinking water treatment process and system thereof Download PDFInfo
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- CN107235584B CN107235584B CN201710542326.0A CN201710542326A CN107235584B CN 107235584 B CN107235584 B CN 107235584B CN 201710542326 A CN201710542326 A CN 201710542326A CN 107235584 B CN107235584 B CN 107235584B
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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
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- 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
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
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Abstract
The invention belongs to the technical field of water treatment. A novel drinking water treatment process is characterized by comprising the following steps: 1) preparing a drinking water treatment system; 2) firstly, raw water enters a first coagulation tank through a first conveying pipe, and a coagulant is added into the first coagulation tank through a first coagulant adding device and stirred; 3) the water after the primary coagulation reaction in the first coagulation tank enters the ultrasonic reactor through a second conveying pipe; 4) the water treated by the ultrasonic treatment reactor enters a second coagulation tank through a third conveying pipe, and coagulant is added again through a second coagulant adding device and stirred; 5) water after the reaction in the second coagulation tank enters the ultrafiltration membrane reaction tank through the fourth conveying pipe, and is separated by an ultrafiltration membrane component under the suction action of a suction pump in the ultrafiltration membrane reaction tank, trace pollutants in drinking water source water can be effectively removed, and the outlet water treated by the process can meet the sanitary Standard for Drinking Water (GB 5749-2006).
Description
Technical Field
The invention belongs to the technical field of water treatment, and particularly relates to a novel drinking water treatment process and a system thereof.
Background
Along with the acceleration of the modern construction process of our country, the continuous development and expansion of the industry, especially along with the rapid development of industrial and agricultural industries and the rapid increase of urban population, a large amount of industrial wastewater and domestic sewage are not up to standard and are directly discharged, so that surface water sources of many cities and towns in our country are polluted to different degrees, the types and the quantity of organic matters in the surface water are greatly increased, and a plurality of trace organic pollutants, soluble chemical substances and oxidation disinfection byproducts which are harmful to human bodies are found in drinking water. Meanwhile, the requirement of people on the quality of drinking water is higher and higher, the problem of drinking water purification treatment is solved, and the guarantee of drinking water safety becomes a basic requirement for improving the production and living conditions of residents in China.
At present, most water plants in China mainly adopt a conventional drinking water treatment process taking chemical coagulation, precipitation and sand filtration as cores, the process is difficult to effectively solve the water quality problem, and the safety of treated water cannot be guaranteed; and a large amount of chlorination can convert organic pollutants in water into disinfection byproducts which have serious toxic and harmful effects on human bodies, thereby reducing the chemical safety of drinking water. In the traditional water production process, the sand filtration process occupies a large area, has high requirements on a water distribution system and low filtration precision, and in engineering application, besides strict design and installation conditions, the sand filtration process needs to be maintained and overhauled frequently, otherwise, the normal water purification effect of the sand filtration system is difficult to ensure. Therefore, there is a need to develop a new drinking water treatment process suitable for the existing water quality condition to ensure the health of the drinking water of residents.
Disclosure of Invention
The invention aims to provide a novel drinking water treatment process and a system thereof, which can effectively remove trace pollutants in raw drinking water, and the outlet water treated by the process can meet the hygienic standards for drinking water (GB 5749-2006).
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a novel drinking water treatment process is characterized by comprising the following steps:
1) preparing a drinking water treatment system;
2) firstly, raw water enters a first coagulation tank through a first conveying pipe, and a coagulant is added into the first coagulation tank through a first coagulant adding device and stirred;
3) the water after the primary coagulation reaction in the first coagulation tank enters the ultrasonic reactor through a second conveying pipe;
4) the water treated by the ultrasonic treatment reactor enters a second coagulation tank through a third conveying pipe, and coagulant is added again through a second coagulant adding device and stirred;
5) and the water after the reaction in the second coagulation tank enters the ultrafiltration membrane reaction tank through a fourth conveying pipe and is separated by the ultrafiltration membrane component under the suction action of a suction pump in the ultrafiltration membrane reaction tank.
The coagulant is polyaluminium chloride or aluminium sulfate.
Step 2), the retention time of the raw water in the first coagulation pool is 1-5 min, and the adding amount of a coagulant in the first coagulation pool is 0.06-0.12 mmol/L (Al)3+)。
And 3) the retention time of the water subjected to the primary coagulation reaction in the first coagulation tank in the ultrasonic reactor is 0.5-15 min, the loading frequency of ultrasonic waves is 20-60 kHz, and the sound energy density is 0.1-1.0W/L.
The retention time of the water treated by the ultrasonic treatment reactor in the second coagulation tank is 2-8 min, and the addition amount of a coagulant in the second coagulation tank is 0.08-0.20 mmol/L (Al)3+)。
Step 5) atThe ultrafiltration membrane used in the ultrafiltration membrane component is a hollow fiber membrane, the membrane aperture is 0.02-0.15 mu m, and the membrane flux of the ultrafiltration membrane is 20-80L/m2H.
The process needs a specially-arranged backwashing water pump and compressed air to carry out periodical backwashing on the ultrafiltration membrane, wherein backwashing water is discharged from a suction pump 16, and the compressed air is sent into an ultrafiltration membrane tank through an air pipeline by using a specially-arranged air blower. And (3) determining the time for regularly emptying and discharging the sludge in the ultrafiltration membrane treatment water tank according to the water quality condition of the mixed liquid in the ultrafiltration membrane tank, emptying by opening an emptying valve, and then feeding water again.
The drinking water treatment system for realizing the process comprises a first conveying pipe 1, a first coagulation tank 2, a first coagulant adding device 3, a first stirring device 4, a second conveying pipe 5, an ultrasonic reactor 6, a third conveying pipe 7, a second coagulation tank 8, a second coagulant adding device 9, a second stirring device 10, a fourth conveying pipe 11, an ultrafiltration membrane reaction tank 12, an ultrafiltration membrane assembly 13, an ultrafiltration membrane tank vent pipe 14, a fifth conveying pipe 15 and a suction pump 16;
the input end of a first conveying pipe 1 is connected with raw drinking water, the output end of the first conveying pipe 1 is communicated with the water inlet of a first coagulation tank 2, the top of the first coagulation tank 2 is provided with a first coagulant adding device 3, the first coagulation tank 2 is provided with a first stirring device 4, the input end of a second conveying pipe 5 is communicated with the water outlet of the first coagulation tank 2, the output end of the second conveying pipe 5 is communicated with the water inlet of an ultrasonic reactor 6, the input end of a third conveying pipe 7 is communicated with the water outlet of the ultrasonic reactor, the output end of the third conveying pipe 7 is communicated with the water inlet of a second coagulation tank 8, the top of the second coagulation tank 8 is provided with a second coagulant adding device 9, the second coagulation tank 8 is provided with a second stirring device 10, the input end of a fourth conveying pipe 11 is communicated with the water outlet of the second coagulation tank 8, the output end of the fourth conveying pipe 11 is communicated with the water inlet of an ultrafiltration membrane reaction, an ultrafiltration membrane component 13 is arranged in the ultrafiltration membrane reaction tank 12, an emptying pipe 14 is arranged at the bottom of the ultrafiltration membrane reaction tank 12, a manual valve is arranged on the emptying pipe 14, the input end of a fifth conveying pipe 15 is communicated with the water outlet of the ultrafiltration membrane component 13, and the output end of the fifth conveying pipe 15 is communicated with the water inlet of a suction pump 16.
The invention has the beneficial effects that:
1. the invention combines coagulation, ultrasonic and ultrafiltration processes, a small amount of coagulant is added into a first coagulation tank, positive charges generated by hydrolysis reaction of the coagulant neutralize negatively charged colloidal particles in raw water to ensure that the colloidal particles are destabilized and aggregated into large floc particles, and then the large floc particles pass through an ultrasonic reactor to generate O, H, OH free radicals and H by utilizing ultrasonic waves on one hand2O2The equal-strength oxides can efficiently remove organic matters, odor substances, ammonia nitrogen and the like with different molecular weights in water, and can sterilize and disinfect simultaneously, on the other hand, the shearing force generated by ultrasonic cavitation can pre-crush floc granular substances in water, so that the particle size of the floc granular substances is reduced, the surface area of the floc granular substances is increased, the floc granular substances, the organic matters and the colloidal substances which are difficult to remove in water can be further adsorbed, and meanwhile, the small floc granules can play a role in strengthening a condensation core in a second coagulation tank, so that the coagulation effect of the second coagulation tank is obviously strengthened, and the dosage of the coagulant is reduced.
2. The invention takes the ultrafiltration device as the final barrier, the used ultrafiltration equipment is immersed ultrafiltration equipment, the working pressure is lower, and the energy consumption is relatively lower. On one hand, the interception characteristic of the ultrafiltration membrane is utilized to remove floc particles, organic pollutants, bacteria, colloidal substances and the like in water to ensure the safety of drinking water, and on the other hand, raw water is subjected to coagulation and ultrasonic synergistic pretreatment before ultrafiltration to ensure that the floc particles in the water are larger than the floc particles generated by conventional coagulation, so that the surface of the polluted layer of the ultrafiltration membrane is rough, gaps exist among the particles, the ultrafiltration membrane still has good permeability and is easily removed by water flow disturbance, therefore, the ultrafiltration membrane can effectively relieve the membrane pollution rate, reduce the backwashing frequency and prolong the service life of the ultrafiltration membrane.
3. Compared with the conventional drinking water treatment process (coagulation-sedimentation-filtration-disinfection), the invention omits a sedimentation tank and a filter tank, greatly reduces the occupied area and simplifies the operation control of the system; meanwhile, a disinfection pool is saved, and the problem that byproducts harmful to human bodies are generated in the conventional process of chlorination disinfection of drinking water is solved.
4. The whole device has simple process, high integration degree, small volume, simple and easy operation and good treatment effect.
The present invention is illustrated in detail by the following examples.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
A new drinking water treatment process comprises the following steps:
1) preparing a drinking water treatment system;
2) firstly, raw water enters a first coagulation tank 2 through a first conveying pipe 1, a coagulant (the coagulant is polyaluminium chloride or aluminum sulfate) is added into the first coagulation tank 2 through a first coagulant adding device 3, under the stirring action of a first stirring device 4 in the first coagulation tank 2, the coagulant is subjected to hydrolysis reaction to generate positive charge particles, the positive charge particles and colloid particles with negative charges in water are subjected to electric neutralization reaction, the potential of the surface of the colloid is reduced, and colloid pollutants in the water are destabilized and aggregated into large floc particles;
3) the water after the primary coagulation reaction in the first coagulation tank 2 enters an ultrasonic reactor 6 through a second conveying pipe 5, and O, H, OH free radicals and H generated by cavitation of ultrasonic waves with certain sound energy density2O2The equal-strength oxides can efficiently remove organic matters, odor substances, ammonia nitrogen and the like with different molecular weights in water, and can sterilize and disinfect; on the other hand, the shearing force generated by the cavitation of the ultrasonic wave can generate the pre-crushing effect on the floc particles in the water, so that the large floc is crushed into small flocs, the specific surface area of the floc particles is increased, the corresponding adsorption capacity is increased, the adsorption number of the floc is correspondingly increased, the probability that the particulate matter, the organic matter and the colloidal matter which are difficult to remove in the water are adsorbed on the surfaces of the floc is increased, and the subsequent coagulation effect can be effectively enhanced;
4) the water treated by the ultrasonic treatment reactor 6 enters a second coagulation tank 8 through a third conveying pipe 7, a coagulant (polyaluminium chloride or aluminium sulfate) is added again through a second coagulant adding device 9, the coagulant rapidly undergoes hydrolysis reaction under the stirring action of a second stirring device 10, as the previously formed small floc particles can increase the condensation nuclei in the water, the flocculation effect generated by hydrolysis of the newly added coagulant is obviously enhanced, the crushed small flocs can be bonded under the net trapping and sweeping action of a hydrolysate, the flocs are promoted to be re-flocculated and bonded together more firmly, and the flocs with larger particle size are rapidly generated, so that the flocs are separated from the water more easily, and the load is reduced for the subsequent ultrafiltration membrane separation process;
5) the water reacted in the second coagulation tank 8 enters an ultrafiltration membrane reaction tank (immersed ultrafiltration membrane tank) 12 through a fourth conveying pipe 11, and floc particles, residual organic pollutants, colloids, bacteria and viruses in the water are filtered out through the separation function of an ultrafiltration membrane component 13 under the suction function of a suction pump 16 in the ultrafiltration membrane reaction tank 12; the effluent of the suction pump 16 is drinking water meeting the GB5749-2006 sanitary standard.
Step 2), the retention time of the raw water in the first coagulation pool is 1-5 min, and the adding amount of a coagulant in the first coagulation pool is 0.06-0.12 mmol/L (Al)3+)。
And 3) the retention time of the water subjected to the primary coagulation reaction in the first coagulation tank in the ultrasonic reactor is 0.5-15 min, the loading frequency of ultrasonic waves is 20-60 kHz, and the sound energy density is 0.1-1.0W/L.
The retention time of the water treated by the ultrasonic treatment reactor in the second coagulation tank is 2-8 min, and the addition amount of a coagulant in the second coagulation tank is 0.08-0.20 mmol/L (Al)3+)。
The ultrafiltration membrane used in the ultrafiltration membrane component in the step 5) is a hollow fiber membrane, the membrane aperture is 0.02-0.15 mu m, and the membrane flux of the ultrafiltration membrane is 20-80L/m2H.
As shown in fig. 1, the drinking water treatment system for implementing the above process includes a first delivery pipe 1, a first coagulation tank 2, a first coagulant adding device 3, a first stirring device 4, a second delivery pipe 5, an ultrasonic reactor 6, a third delivery pipe 7, a second coagulation tank 8, a second coagulant adding device 9, a second stirring device 10 (or called a stirrer), a fourth delivery pipe 11, an ultrafiltration membrane reaction tank 12, an ultrafiltration membrane module 13, an ultrafiltration membrane tank vent pipe 14, a fifth delivery pipe 15, and a suction pump 16;
the input end of a first conveying pipe 1 is connected with raw drinking water, the output end of the first conveying pipe 1 is communicated with the water inlet of a first coagulation tank 2, the top of the first coagulation tank 2 is provided with a first coagulant adding device 3, the first coagulation tank 2 is provided with a first stirring device 4, the input end of a second conveying pipe 5 is communicated with the water outlet of the first coagulation tank 2, the output end of the second conveying pipe 5 is communicated with the water inlet of an ultrasonic reactor 6, the input end of a third conveying pipe 7 is communicated with the water outlet of the ultrasonic reactor, the output end of the third conveying pipe 7 is communicated with the water inlet of a second coagulation tank 8, the top of the second coagulation tank 8 is provided with a second coagulant adding device 9, the second coagulation tank 8 is provided with a second stirring device 10, the input end of a fourth conveying pipe 11 is communicated with the water outlet of the second coagulation tank 8, the output end of the fourth conveying pipe 11 is communicated with the water inlet of an ultrafiltration membrane reaction, an ultrafiltration membrane component 13 is arranged in the ultrafiltration membrane reaction tank 12, an emptying pipe 14 is arranged at the bottom of the ultrafiltration membrane reaction tank 12, a manual valve is arranged on the emptying pipe 14, sludge mixed liquor discharged by the emptying pipe 14 is treated additionally, the input end of a fifth conveying pipe 15 is communicated with the water outlet of the ultrafiltration membrane component 13, the output end of the fifth conveying pipe 15 is communicated with the water inlet of a suction pump 16, and the discharged water of the whole system is finally pumped to a user by the suction pump 16 for use.
Example 1 was carried out:
in this example, UV in raw water254Is O.065cm-1，CODcrThe concentration is 6.5mg/L, the ammonia nitrogen concentration is 0.7mg/L, and the total coliform group is 4MPN/100 ml. By adopting the process, raw water enters a first coagulation tank, polyaluminium chloride is added into the first coagulation tank as a coagulant, and the adding amount of the coagulant is 0.07mmol/L (Al)3+) The reaction time in the first coagulation tank was 3.5 min. Then the mixture enters an ultrasonic reactor, the ultrasonic loading frequency is 35kHZ, the acoustic energy density is 0.3W/L, and the reaction time is 5 min. Raw water enters a second coagulation tank after passing through an ultrasonic reactor, polyaluminium chloride is added into the second coagulation tank as a coagulant, and the adding amount of the coagulant is 0.15mmol/L (Al)3+) And the reaction time in the second coagulation tank is 4 min. The raw water passes through the secondThe mixed solution enters an ultrafiltration membrane tank after reaction, an ultrafiltration membrane (an ultrafiltration membrane component 13) is a hollow fiber membrane, the membrane aperture is 0.12 mu m, and the membrane flux of the ultrafiltration membrane component is 60L/m2H. The method is adopted for treatment, and the effluent is UV254Is O.02cm-1,CODcrThe concentration is 1.2mg/L, the ammonia nitrogen concentration is O.11mg/L, and the total coliform is 0, which meets the requirements of national sanitary Standard for Drinking Water (GB 5749-2006).
The raw materials listed in the invention, the upper and lower limits and interval values of the raw materials of the invention, and the upper and lower limits and interval values of the process parameters (such as time and the like) can realize the invention, and the examples are not listed.
Claims (7)
1. A drinking water treatment process is characterized by comprising the following steps:
1) preparing a drinking water treatment system;
the drinking water treatment system comprises a first conveying pipe (1), a first coagulation tank (2), a first coagulant adding device (3), a first stirring device (4), a second conveying pipe (5), an ultrasonic reactor (6), a third conveying pipe (7), a second coagulation tank (8), a second coagulant adding device (9), a second stirring device (10), a fourth conveying pipe (11), an ultrafiltration membrane reaction tank (12), an ultrafiltration membrane component (13), an ultrafiltration membrane tank emptying pipe (14), a fifth conveying pipe (15) and a suction pump (16);
the input end of a first conveying pipe (1) is connected with raw drinking water, the output end of the first conveying pipe (1) is communicated with the water inlet of a first coagulation tank (2), the top of the first coagulation tank (2) is provided with a first coagulant adding device (3), the first coagulation tank (2) is provided with a first stirring device (4), the input end of a second conveying pipe (5) is communicated with the water outlet of the first coagulation tank (2), the output end of the second conveying pipe (5) is communicated with the water inlet of an ultrasonic reactor (6), the input end of a third conveying pipe (7) is communicated with the water outlet of the ultrasonic reactor, the output end of the third conveying pipe (7) is communicated with the water inlet of a second coagulation tank (8), the top of the second coagulation tank (8) is provided with a second coagulant adding device (9), the second stirring device (10) is arranged in the second coagulation tank (8), the input end of a fourth conveying pipe (11) is communicated with the water outlet of the second coagulation tank (8), the output end of the fourth conveying pipe (11) is communicated with the water inlet of the ultrafiltration membrane reaction tank (12), an ultrafiltration membrane component (13) is arranged in the ultrafiltration membrane reaction tank (12), the bottom of the ultrafiltration membrane reaction tank (12) is provided with a vent pipe (14), the vent pipe (14) is provided with a manual valve, the input end of the fifth conveying pipe (15) is communicated with the water outlet of the ultrafiltration membrane component (13), and the output end of the fifth conveying pipe (15) is communicated with the water inlet of the suction pump (16);
2) firstly, raw water enters a first coagulation tank through a first conveying pipe, and a coagulant is added into the first coagulation tank through a first coagulant adding device and stirred;
3) the water after the primary coagulation reaction in the first coagulation tank enters the ultrasonic reactor through a second conveying pipe;
4) the water treated by the ultrasonic treatment reactor enters a second coagulation tank through a third conveying pipe, and coagulant is added again through a second coagulant adding device and stirred;
5) and the water after the reaction in the second coagulation tank enters the ultrafiltration membrane reaction tank through a fourth conveying pipe and is separated by the ultrafiltration membrane component under the suction action of a suction pump in the ultrafiltration membrane reaction tank.
2. The drinking water treatment process according to claim 1, wherein the coagulant in step 2) and step 4) is polyaluminium chloride or aluminium sulphate.
3. The drinking water treatment process according to claim 1, wherein the retention time of the raw water in the step 2) in the first coagulation tank is 1-5 min, and the addition amount of the coagulant in the first coagulation tank is 0.06-0.12 mmol/LAl3+。
4. The drinking water treatment process according to claim 1, wherein the retention time of the water subjected to the primary coagulation reaction in the first coagulation tank in the step 3) in the ultrasonic reactor is 0.5-15 min, the loading frequency of ultrasonic waves is 20-60 kHz, and the sound energy density is 0.1-1.0W/L.
5. The drinking water treatment process according to claim 1, wherein the retention time of the water treated by the ultrasonic treatment reactor in the step 4) in the second coagulation tank is 2-8 min, and the addition amount of the coagulant in the second coagulation tank is 0.08-0.20 mmol/LAl3+。
6. The drinking water treatment process according to claim 1, wherein the ultrafiltration membrane used in the ultrafiltration membrane module in the step 5) is a hollow fiber membrane, the membrane aperture is 0.02-0.15 μm, and the membrane flux of the ultrafiltration membrane is 20-80L/m2H.
7. The drinking water treatment system for realizing the process of claim 1 comprises a first conveying pipe (1), a first coagulation tank (2), a first coagulant adding device (3), a first stirring device (4), a second conveying pipe (5), an ultrasonic reactor (6), a third conveying pipe (7), a second coagulation tank (8), a second coagulant adding device (9), a second stirring device (10), a fourth conveying pipe (11), an ultrafiltration membrane reaction tank (12), an ultrafiltration membrane assembly (13), an ultrafiltration membrane tank emptying pipe (14), a fifth conveying pipe (15) and a suction pump (16);
the input end of a first conveying pipe (1) is connected with raw drinking water, the output end of the first conveying pipe (1) is communicated with the water inlet of a first coagulation tank (2), the top of the first coagulation tank (2) is provided with a first coagulant adding device (3), the first coagulation tank (2) is provided with a first stirring device (4), the input end of a second conveying pipe (5) is communicated with the water outlet of the first coagulation tank (2), the output end of the second conveying pipe (5) is communicated with the water inlet of an ultrasonic reactor (6), the input end of a third conveying pipe (7) is communicated with the water outlet of the ultrasonic reactor, the output end of the third conveying pipe (7) is communicated with the water inlet of a second coagulation tank (8), the top of the second coagulation tank (8) is provided with a second coagulant adding device (9), the second stirring device (10) is arranged in the second coagulation tank (8), the input end of a fourth conveying pipe (11) is communicated with the water outlet of the second coagulation tank (8), the output end of the fourth conveying pipe (11) is communicated with the water inlet of the ultrafiltration membrane reaction tank (12), an ultrafiltration membrane component (13) is arranged in the ultrafiltration membrane reaction tank (12), a vent pipe (14) is arranged at the bottom of the ultrafiltration membrane reaction tank (12), a manual valve is arranged on the vent pipe (14), the input end of the fifth conveying pipe (15) is communicated with the water outlet of the ultrafiltration membrane component (13), and the output end of the fifth conveying pipe (15) is communicated with the water inlet of the suction pump (16).
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| NL2021149B1 (en) * | 2018-06-19 | 2020-01-06 | Indra Scient Sa | Method and system for the purification of contaminated water |
| CN110304680B (en) * | 2019-04-08 | 2021-05-04 | 天津大学 | Method for removing low-concentration Pb (II) by combining heavy metal removal absorbent LAC/PAA with traditional water treatment process |
| CN109879495A (en) * | 2019-04-12 | 2019-06-14 | 武汉轻工大学 | A kind of water treatment system and method for treating water of surface water |
| CN109879496A (en) * | 2019-04-12 | 2019-06-14 | 武汉轻工大学 | A kind of water treatment system and method for treating water removing Humic Acid in Drinking Water |
| CN109879483A (en) * | 2019-04-12 | 2019-06-14 | 武汉轻工大学 | A kind of water treatment system and method for treating water of micro-polluted source water |
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| CN1911839A (en) * | 2005-08-09 | 2007-02-14 | 张海平 | Ultrasonic magnetic field physicochemical treatment method for high-concentration sewage |
| CN101186409A (en) * | 2007-11-28 | 2008-05-28 | 吴江市方霞企业信息咨询有限公司 | Method for treating high-concentration organic sewage |
| CN205556336U (en) * | 2016-03-30 | 2016-09-07 | 福州大学 | A integrated device for water treatment |
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Effective date of registration: 20200916 Address after: 510000 Shapu yinshacheng Development Zone, Xintang Town, Zengcheng District, Guangzhou City, Guangdong Province Patentee after: Zengcheng City high-tech Shuangjiang purifying agent Ltd. Address before: 430023, No. 68, South Road, evergreen garden, Hankou, Hubei, Wuhan Patentee before: Wuhan University of Light Industry |
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