CN119390293A - Water purification device and method suitable for urban garden landscape irrigation - Google Patents
Water purification device and method suitable for urban garden landscape irrigation Download PDFInfo
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- CN119390293A CN119390293A CN202411820889.8A CN202411820889A CN119390293A CN 119390293 A CN119390293 A CN 119390293A CN 202411820889 A CN202411820889 A CN 202411820889A CN 119390293 A CN119390293 A CN 119390293A
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- Organic Chemistry (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention provides a water quality purifying device and a water quality purifying method suitable for urban landscape irrigation, wherein the water quality purifying device comprises an ion exchange system, the ion exchange system comprises an ion exchange tank body, strong acid polymeric filler and a strong acid reaction base, wherein the ion exchange tank body is used for staying irrigation water to be purified according to a set residence time, the strong acid polymeric filler is arranged in the ion exchange tank body, so that the strong acid reaction base of the strong acid polymeric filler can carry out ion exchange reaction with salt ions in the irrigation water, the salt ion removal rate in the irrigation water can be changed along with the length of the set residence time, the salt ion removal rate in the irrigation water can be controlled manually, the salt content in the irrigation water can provide trace essential nutrient elements for plants, and the strong acid polymeric filler has a certain promoting effect on plant growth so as to achieve the purposes of maintaining soil health and normal plant growth.
Description
Technical Field
The invention belongs to the technical field of water quality purification, and particularly relates to a water quality purification device and method suitable for urban landscape irrigation.
Background
With the continuous acceleration of the urban process, the demands of urban residents on urban green lands and good ecological environments are increased, the urban greening rate becomes an important index for evaluating the urban development level, but the landscaping is one of industries with more water demand, so that the water quality of irrigation water directly influences the landscaping presentation effect and the soil health condition.
At present, the landscaping irrigation water sources used in China mainly comprise two types of conventional water sources and non-conventional water sources, wherein the conventional water sources comprise tap water and underground water, and the non-conventional water sources comprise reclaimed water, river and lake water and rainwater reduction water. With the importance and protection of water resources in China, the conventional water source basically exits from the landscaping irrigation industry, and the conventional water source is replaced by an unconventional water source, but due to the water quality characteristic and the soil property characteristic, the phenomenon that soil is hardened and landscape plants die due to water loss easily occurs after the landscaping irrigation of the unconventional water source.
The main reason for the problems is that the salt in unconventional water accumulates to form salt damage in soil after irrigation, so that the soil permeability is poor, hardening and plant death occur, and the current literature report for removing salt in landscaping irrigation water is still in a blank stage, and common industrial and domestic wastewater desalination processes are as follows:
distillation is a conventional desalination process by heating water to evaporate and then re-condensing the vapor into water. This method can remove most of impurities and dissolved solid substances in water, but is high in energy consumption and unsuitable for treating large-scale water resources.
The reverse osmosis process is one modern water treating desalting process, and has high pressure to permeate through semi-permeable film to isolate ions and impurities from solution and thus obtain pure water, and has excellent treating effect, capacity of eliminating over 99% of soluble solid matter and ions from water, and high power consumption.
The electrodialysis method is also a modern water treatment desalination method, which utilizes the action force of an electric field to separate ions and impurities in water so as to obtain pure water, and the ion separation process of the method only needs a small amount of consumption of electric energy, so that the energy consumption is low, but only partial ions and soluble substances in the water can be removed.
The air-float method is a physical treatment method, which is suitable for treating some slight pollutants dispersed in water, but has relatively weak removal effect, and the tiny bubbles are injected into the water to lift the impurities and the particles in the water upwards, so that the impurities in the water are removed through surface skimming.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a water quality purifying device and a water quality purifying method suitable for urban landscape irrigation, which are used for solving the problems that the prior wastewater desalination method has high cost and uncontrollable salt ion removal rate, and the irrigation water can not provide trace essential nutrient elements for plants due to more salt ions, so that abnormal plant growth can be caused due to too high or too low salt in the irrigation water.
In order to achieve the above object, the present invention provides a water quality purifying apparatus suitable for irrigation of urban landscaping, the water quality purifying apparatus comprising an ion exchange system comprising:
the system comprises an ion exchange tank body, a water inlet pipe and a water outlet pipe, wherein the ion exchange tank body is internally used for retaining irrigation water to be purified according to a set retention time;
The strong acid polymeric filler is arranged in the ion exchange tank body, and the strong acid reaction group of the strong acid polymeric filler can carry out ion exchange reaction with salt ions in irrigation water, so that the removal rate of the salt ions in the irrigation water changes along with the length of the set residence time.
Preferably, the ion exchange system further comprises:
The multi-way control valve is arranged at the top of the ion exchange tank body;
The central tube is arranged in the ion exchange tank body, the bottom end of the central tube is inserted into the strongly acidic polymeric filler, and the top end of the central tube is connected with the first valve port of the multi-way control valve;
the upper water distributor is connected with a second valve port of the multi-way control valve;
The lower water distributor is connected with the bottom end of the central pipe, and irrigation water can enter the ion exchange tank body through the upper water distributor and can flow out through the lower water distributor and the central pipe;
The output end of the first back flushing device is connected with the third valve opening of the multi-way control valve, and back flushing liquid of the first back flushing device can enter the ion exchange tank body through the central pipe and the lower water distributor and can flow out through the fourth valve opening of the multi-way control valve.
Preferably, the strong acid polymeric filler is DPT-I resin, the strong acid polymeric filler is arranged at the bottom of the ion exchange tank body, and the height ratio of the strong acid polymeric filler to the ion exchange tank body is 1:2.
Preferably, the first backwash device comprises:
the first feeding barrel is internally provided with a back flushing sulfuric acid solution;
the back flushing clean water system comprises a first clean water tank, wherein back flushing clean water is arranged in the first clean water tank.
Preferably, the water quality purifying device suitable for urban landscape irrigation further comprises a pretreatment filtering system, wherein the pretreatment filtering system is communicated with the ion exchange system, and the pretreatment filtering system comprises:
A booster pump;
the input end of the microporous membrane filter is connected with the output end of the booster pump;
and the input end of the sand filter is connected with the output end of the microporous membrane filter.
Preferably, the water quality purifying device suitable for urban landscape irrigation further comprises an adsorption system, the ion exchange system is communicated with the adsorption system, and the adsorption system comprises:
An adsorption tank body;
the quartz sand filler is arranged in the adsorption tank body;
The activated carbon filler is arranged in the adsorption tank body and is arranged at the top of the quartz sand filler;
and the output end of the second back flushing device is connected with the input end of the adsorption tank body.
The effluent of the ion exchange system enters an activated carbon filter through an automatic multi-way valve on the adsorption tank body, reacts with quartz sand and activated carbon, and is used for removing COD in irrigation water.
Preferably, the second backwash device comprises:
The second feeding barrel is internally provided with a backwashing ER-C microbial inoculum;
and the inside of the second clean water tank is provided with backwash clean water.
A water quality purifying method suitable for urban landscape irrigation, using a water quality purifying device suitable for urban landscape irrigation, the water quality purifying method comprising:
collecting soil at a plurality of positions in a landscape irrigation area, and analyzing the salt content in the soil;
The salt damage condition of soil is evaluated, and the soil is divided into a pollution-free area, a potential pollution area and a polluted area according to the pollution condition of a landscape irrigation area;
Aiming at the potential pollution area and the polluted area, according to soil salt damage and the water quality condition of the existing irrigation water, a water quality-soil-plant multi-connected irrigation configuration model calculation system is used for obtaining the limit value of the salt ion content in the irrigation water;
Setting the time for the irrigation water to stay in the ion exchange tank body according to the limit value, and enabling the strongly acidic reaction group and the salt ions to carry out ion exchange reaction according to the set stay time so as to enable the salt ion content in the irrigation water to meet the limit value.
Setting the time for the irrigation water to stay in the ion exchange tank body according to the limit value, and enabling the strongly acidic reaction group and the salt ions to carry out ion exchange reaction according to the set stay time so as to enable the salt ion content in the irrigation water to meet the limit value.
Preferably, when the water quality purifying device suitable for urban landscape irrigation further comprises a pretreatment filtering system, the pretreatment filtering system is communicated with the ion exchange system, the method further comprises filtering impurity pollutants in irrigation water by utilizing the pretreatment filtering system.
Preferably, when the water quality purifying device suitable for urban landscape irrigation further comprises an adsorption system, the ion exchange system is communicated with the adsorption system, the method further comprises removing COD in the irrigation water by utilizing the adsorption system.
The invention provides a water quality purifying device and a water quality purifying method suitable for urban landscape irrigation, which have the beneficial effects that the strongly acidic reaction base of the strongly acidic polymeric filler of the water quality purifying device can carry out ion exchange reaction with salt ions in irrigation water, so that the removal rate of the salt ions in the irrigation water changes along with the length of a set residence time, further the removal rate of the salt ions in the irrigation water can be controlled manually, the salt content in the irrigation water can provide trace essential nutrient elements for plants, and the water quality purifying device has a certain promoting effect on plant growth, so that the purposes of maintaining soil health and normal plant growth are achieved.
The water quality purifying method can calculate the optimal salt ion content in irrigation water according to plant growth requirements, so that salt ions in urban landscape greening irrigation water can be removed efficiently, and meanwhile, the normal growth requirements of plants can be guaranteed due to the salt ion content in water, and the purposes of maintaining soil health and normal growth of plants are achieved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular descriptions of exemplary embodiments of the invention as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the invention.
Fig. 1 shows a flow chart of a water purification method suitable for irrigation of urban landscapes according to one embodiment of the invention.
FIG. 2 shows a block diagram of a water purification apparatus suitable for irrigation of urban landscaping according to an embodiment of the invention;
Fig. 3 shows a schematic structure of an ion exchange system of a water purification apparatus suitable for irrigation of urban landscaping according to an embodiment of the present invention.
Reference numerals illustrate:
1. The device comprises an ion exchange tank body, 2 strongly acidic polymeric fillers, 3 multipath control valves, 4, a central pipe, 5, an upper water distributor, 6, a lower water distributor, 7, a first back flushing device, 8, a booster pump, 9, a microporous membrane filter, 10, a sand filter, 11, an adsorption tank body, 12, a second back flushing device, 13, an intermediate water tank, 14 and a water production water tank.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As shown in fig. 2, the present invention provides a water quality purifying apparatus suitable for irrigation of urban landscaping, the water quality purifying apparatus comprising an ion exchange system comprising:
the system comprises an ion exchange tank body 1, wherein irrigation water to be purified stays in the ion exchange tank body 1 according to a set stay time;
the strong acid polymeric filler 2 is arranged in the ion exchange tank body 1, and the strong acid reaction group of the strong acid polymeric filler 2 can carry out ion exchange reaction with salt ions in irrigation water, so that the removal rate of the salt ions in the irrigation water changes along with the length of the set residence time.
In particular, in order to solve the problems that the existing wastewater desalination method is high in cost and the salt ion removal rate cannot be controlled, and the salt ion removal rate is high, so that the irrigation water cannot provide trace essential nutrient elements for plants, and the abnormal growth of plants can be caused by too high or too low salt in the irrigation water, the invention provides a water quality purification device suitable for urban landscape irrigation, wherein a strongly acidic reaction base of a strongly acidic polymeric filler 2 of the water quality purification device can carry out ion exchange reaction with the salt ions in the irrigation water, so that the salt ion removal rate in the irrigation water changes along with the set residence time, the salt ion removal rate in the irrigation water can be controlled manually, the salt content in the irrigation water can provide trace essential nutrient elements for plants, and the water quality purification device has a certain promotion effect on plant growth, so that the purposes of maintaining soil health and normal plant growth are achieved.
As shown in fig. 3, the ion exchange system preferably further comprises:
the multi-way control valve 3 is arranged at the top of the ion exchange tank body 1;
The central tube 4 is arranged in the ion exchange tank body 1, the bottom end of the central tube 4 is inserted into the strongly acidic polymeric filler 2, and the top end of the central tube 4 is connected with the first valve port of the multi-way control valve 3;
The upper water distributor 5 is connected with a second valve port of the multi-way control valve 3;
The lower water distributor 6 is connected with the bottom end of the central pipe 4, irrigation water can enter the ion exchange tank 1 through the upper water distributor 5 and can flow out through the lower water distributor 6 and the central pipe 4;
the output end of the first back flushing device 7 is connected with a third valve opening of the multi-way control valve 3, and the back flushing liquid of the first back flushing device 7 can enter the ion exchange tank body 1 through the central pipe 4 and the lower water distributor 6 and can flow out through a fourth valve opening of the multi-way control valve 3.
Specifically, the irrigation water can enter the upper water distributor 5 through the distribution of the multi-way control valve 3, and the salt ions of the irrigation water enter the ion exchange tank body 1 through the upper water distributor 5 to undergo ion exchange reaction with the strong acid reaction groups contained in the strong acid polymeric filler 2, so that the residence time is set to 15-30min, the salt ions in the irrigation water are reduced, the removal rate is generally 45-75%, and the plant growth is promoted to a certain extent.
Preferably, the strong acid polymeric filler 2 is DPT-I resin, the strong acid polymeric filler 2 is arranged at the bottom of the ion exchange tank body 1, and the ratio of the height of the strong acid polymeric filler 2 to the height of the ion exchange tank body 1 is 1:2.
Specifically, because the DPT-I resin has a reaction group with strong acidity, salt ions in irrigation water can be exchanged efficiently, so that the composition of the salt ions in the water is reduced, and the salt ions mainly comprise low-valence ions such as sodium ions, chloride ions, bicarbonate ions and the like.
Preferably, the first backwash device 7 comprises:
the first feeding barrel is internally provided with a back flushing sulfuric acid solution;
The inside of the first clean water tank is provided with back flushing clean water.
Specifically, according to the characteristics of DPT-I resin, resin regeneration is set to be completed every 15-30 days, 4-5% back washing sulfuric acid solution is used for countercurrent entering the ion exchange tank body 1 for back washing, the back washing residence time in the regeneration process is about 50-60min, and then clear water is used for washing.
Preferably, the water quality purifying device suitable for urban landscape irrigation further comprises a pretreatment filtering system, wherein the pretreatment filtering system is communicated with the ion exchange system, and comprises:
a booster pump 8;
the input end of the microporous membrane filter 9 is connected with the output end of the booster pump 8;
The input end of the sand filter 10 is connected with the output end of the microporous membrane filter 9.
Specifically, irrigation water enters a pretreatment filtration system through a pipeline under the action of a booster pump 8, the pretreatment filtration system comprises a microporous membrane filter 9 and a sand filter 10, wherein the microporous membrane filter 9 is used for removing impurities with the particle size of more than 100 mu m, and the sand filter 10 is used for removing suspended matters, particles, colloid and other impurity pollutants with the particle size of 50-100 mu m, so that the impurities are prevented from entering soil through the irrigation water, soil pores are blocked, and the soil respiration rate is influenced.
Preferably, the water purification device suitable for urban landscape irrigation further comprises an adsorption system, the ion exchange system is communicated with the adsorption system, and the adsorption system comprises:
an adsorption tank 11;
quartz sand filler, which is arranged in the adsorption tank 11;
The activated carbon filler is arranged in the adsorption tank 11 and at the top of the quartz sand filler;
and the output end of the second back flushing device 12 is connected with the input end of the adsorption tank 11.
Specifically, quartz sand is soaked and washed, then poured into the bottom of an adsorption tank 11, the quartz sand filler is 0.2-0.5m in height and used as a supporting layer, the particle size is 10-0.5mm, granular activated carbon is poured into the adsorption tank 11, the activated carbon filler is 1.2-1.8m in height and used as a filtering layer, and the particle size is 2.0-4.0mm.
Preferably, the second backwash device 12 comprises:
the second feeding barrel is internally provided with a backwashing ER-C type microbial inoculum;
And the second clean water tank is internally provided with backwash clean water.
Specifically, the adsorption tank body which is in a saturated state is communicated with a second feeding barrel, ER-C type microbial inoculum and saturated biochar in the second feeding barrel are decomposed by strain metabolites, so that organic matters adsorbed on the activated carbon are degraded, adsorption sites on the surface of the activated carbon are activated under the effect of clean water elution, and the activated carbon is recovered in adsorption performance and can be reused.
Preferably, an intermediate water tank 13 is communicated between the ion exchange system and the adsorption system, and a water producing water tank 14 is communicated with the adsorption system.
As shown in fig. 1, a water quality purifying method suitable for urban landscape irrigation, using a water quality purifying apparatus suitable for urban landscape irrigation, the water quality purifying method comprising:
collecting soil at a plurality of positions in a landscape irrigation area, and analyzing the salt content in the soil;
The salt damage condition of soil is evaluated, and the soil is divided into a pollution-free area, a potential pollution area and a polluted area according to the pollution condition of a landscape irrigation area;
Aiming at the potential pollution area and the polluted area, according to soil salt damage and the water quality condition of the existing irrigation water, a water quality-soil-plant multi-connected irrigation configuration model calculation system is used for obtaining the limit value of the salt ion content in the irrigation water;
Setting the time for the irrigation water to stay in the ion exchange tank body according to the limit value, and enabling the strongly acidic reaction group and the salt ions to carry out ion exchange reaction according to the set stay time so as to enable the salt ion content in the irrigation water to meet the limit value.
And setting the time for the irrigation water to stay in the ion exchange tank body 1 according to the limit value, and carrying out ion exchange reaction on the strongly acidic reaction base and the salt ions according to the set stay time so as to ensure that the salt ion content in the irrigation water meets the limit value.
Specifically, when irrigation is carried out on the urban landscape, ecological safety risk assessment of urban landscape irrigation can be carried out, 5-site soil in a landscape irrigation area is collected according to a soil W-type distribution sampling method, the salt content and the content of low-valence inorganic ions (sodium ions, chloride ions, bicarbonate ions and the like) are detected, the salt content condition of the soil is assessed, and the urban landscape irrigation area is divided into a pollution-free area, a potential pollution area and a polluted area according to the salt pollution condition of the soil.
Combining the soil salt risk of the garden landscape irrigation area and the water quality condition of the irrigation water, obtaining the salt balance proportion of 'water-soil-plants' by using a water quality-soil-plant multi-connected irrigation configuration model calculation system, calculating the highest limit value of the salt ion content in the irrigation water, and calculating the corresponding water body residence time by combining the anion and cation amount in the strong acid reaction base resin, thereby regulating and reducing the salt ion content in the irrigation water.
Preferably, when the water purification device suitable for irrigation of urban landscaping further comprises a pretreatment filter system, the pretreatment filter system is communicated with the ion exchange system, the method further comprises filtering the fixed pollutants in the irrigation water by utilizing the pretreatment filter system.
Preferably, when the water purification device suitable for irrigation of urban landscaping further comprises an adsorption system, the ion exchange system is communicated with the adsorption system, the method further comprises removing COD in the irrigation water by utilizing the adsorption system.
Examples
The area of a garden landscape irrigation land is 3500m 2, ecological safety risk assessment is carried out on the land, 5-site soil of an irrigation area is collected and detected according to a soil W-type distribution sampling method, the pH value of the soil is 8.5-9.1, the total salt content is 1.1-1.5g/kg, the water-soluble sodium ion content is 120-130mg/kg, the chloride ion content is 150-180mg/kg, the bicarbonate ion content is 250-280mg/kg, and the soil is assessed to be polluted by salt damage, and the irrigation water quality of the irrigation area is 9.05, TDS (total dissolved solids) is 892mg/kg, the sodium absorption rate is 5.65, the sodium ion content is 218mg/kg, the chloride ion content is 115mg/kg, and the bicarbonate ion content is 215mg/kg.
The processing method comprises the following steps:
According to the salt damage of the soil in the land and the water quality condition of the existing irrigation water, a water quality-soil-plant multi-joint irrigation configuration model calculation system is used for obtaining the limit value of the salt ion content in the irrigation water, wherein the limit value comprises the pH value of 6-6.5, the TDS of 200-300mg/kg, the sodium absorption rate of 0-3, the sodium ion content of 50-100mg/kg, the chloride ion content of 50-100mg/kg and the bicarbonate ion content of 100-150mg/kg;
Calculating the residence time of the corresponding water body to be 18min by combining with the anion and cation amount in the strong acid reaction base resin, and introducing the water body into a water quality purifying device for urban landscape irrigation for water quality purifying treatment;
Irrigation water enters a pretreatment filtering system through a pipeline under the action of a booster pump, the pretreatment filtering system comprises a microporous membrane filter and a sand stone filter, after being filtered, the water enters an upper water distributor through the distribution of a multipath control valve, salt ions of the irrigation water enter an ion exchange tank body through the upper water distributor and undergo ion exchange reaction with DPT-I type resin, the residence time is set to be 18min, the resin filling height and the tank body height are 1:2, after the water passes through the ion exchange system, the water enters an adsorption tank body, after quartz sand is soaked and cleaned, the water is filled into the bottom of the adsorption tank body, the quartz sand filler height is 0.3m, the particle size is 1.5mm, granular activated carbon is filled into the adsorption tank body after the activated carbon filler height is 1.4m, and the particle size is 2mm as a filter layer, and finally purified water is obtained after the water passes through the adsorption tank, wherein the water quality is pH 6.2, TDS218mg/kg, sodium content is 72.8mg/kg, chlorine ion content is 50.5mg/kg, and bicarbonate ion content is 97.8 mg/kg/CO 15.9mg/kg.
In conclusion, when the device is utilized by the water quality purification method suitable for urban landscape irrigation, the salt and ion limit value in the irrigation water are calculated by utilizing a water quality-soil-plant multi-connected irrigation configuration model calculation system, so that a technical reference basis can be provided for the subsequent irrigation water salt regulation and control, and the salinization risk of green land soil caused by irrigation can be reduced.
The application adopts a pretreatment filtering system, an ion exchange system and an adsorption system to remove salt ions in irrigation water, and compared with the traditional desalination method (distillation method, reverse osmosis method, electrodialysis method and air floatation method), the operation cost of the application can be reduced by 35-65%, wherein the medicament cost can be reduced by more than 55%.
It is found that the salt ion in irrigation water needs to be determined by combining the salt ion amount in irrigation soil and plant growth requirement, the salt ion balance of water-soil-plant is maintained, the salt ion removal rate can reach more than 95% by the traditional desalination method (distillation method, reverse osmosis method, electrodialysis method and air floatation method), the reverse effect is achieved for subsequent irrigation, but the salt ion removal rate in irrigation water is manually controllable, and the removal rate is generally 45-75% by model calculation, so that the method has a certain promotion effect on plant growth.
The application makes two regeneration devices for the used resin, activated carbon and quartz sand, and simultaneously is provided with the automatic multi-way valve, so that the application can play a role in periodical backwashing, the backwashing period is about 1-2 times/month, unattended operation can be realized during the backwashing period, the frequency of manual operation is reduced, and the labor cost is reduced by more than 50%.
The application can provide a new solution for the fine management of landscaping irrigation, reduces the risk of soil salinization by 70-85% compared with the traditional irrigation mode, improves the plant survival rate by 55-95%, and can promote the sustainable development of the landscaping irrigation.
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.
Claims (10)
1. The utility model provides a water purification device suitable for urban landscape irrigation, its characterized in that, this water purification device includes ion exchange system, ion exchange system includes:
the system comprises an ion exchange tank body, a water inlet pipe and a water outlet pipe, wherein the ion exchange tank body is internally used for retaining irrigation water to be purified according to a set retention time;
The strong acid polymeric filler is arranged in the ion exchange tank body, and the strong acid reaction group of the strong acid polymeric filler can carry out ion exchange reaction with salt ions in irrigation water, so that the removal rate of the salt ions in the irrigation water changes along with the length of the set residence time.
2. A water purification apparatus suitable for use in urban landscape irrigation according to claim 1, wherein the ion exchange system further comprises:
The multi-way control valve is arranged at the top of the ion exchange tank body;
The central tube is arranged in the ion exchange tank body, the bottom end of the central tube is inserted into the strongly acidic polymeric filler, and the top end of the central tube is connected with the first valve port of the multi-way control valve;
the upper water distributor is connected with a second valve port of the multi-way control valve;
The lower water distributor is connected with the bottom end of the central pipe, and irrigation water can enter the ion exchange tank body through the upper water distributor and can flow out through the lower water distributor and the central pipe;
the output end of the first back flushing device is connected with the third valve opening of the multi-way control valve, and back flushing liquid of the first back flushing device can enter the ion exchange tank body through the central pipe and the lower water distributor and can flow out through the multi-way control valve.
3. The water quality purifying device suitable for urban landscape irrigation according to claim 1, wherein the strong acid polymeric filler is DPT-I resin, the strong acid polymeric filler is arranged at the bottom of the ion exchange tank body, and the height ratio of the strong acid polymeric filler to the ion exchange tank body is 1:2.
4. A water purification apparatus suitable for use in urban landscape irrigation according to claim 2, wherein the first backwash means comprises:
the first feeding barrel is internally provided with a back flushing sulfuric acid solution;
the back flushing clean water system comprises a first clean water tank, wherein back flushing clean water is arranged in the first clean water tank.
5. The water purification device suitable for urban landscape irrigation according to claim 1, further comprising a pretreatment filtration system in communication with the ion exchange system, the pretreatment filtration system comprising:
A booster pump;
the input end of the microporous membrane filter is connected with the output end of the booster pump;
and the input end of the sand filter is connected with the output end of the microporous membrane filter.
6. The water purification device suitable for urban landscape irrigation according to claim 1, further comprising an adsorption system, wherein the ion exchange system is in communication with the adsorption system, and wherein the adsorption system comprises:
An adsorption tank body;
the quartz sand filler is arranged in the adsorption tank body;
The activated carbon filler is arranged in the adsorption tank body and is arranged at the top of the quartz sand filler;
and the output end of the second back flushing device is connected with the input end of the adsorption tank body.
7. The water purification apparatus for urban landscape irrigation according to claim 6, wherein the second back flushing means comprises:
The second feeding barrel is internally provided with a backwashing ER-C microbial inoculum;
and the inside of the second clean water tank is provided with backwash clean water.
8. A water quality purifying method suitable for urban landscape irrigation, using a water quality purifying apparatus suitable for urban landscape irrigation according to any one of claims 1 to 7, characterized in that the water quality purifying method comprises:
collecting soil at a plurality of positions in a landscape irrigation area, and analyzing the salt content in the soil;
The salt damage condition of soil is evaluated, and the soil is divided into a pollution-free area, a potential pollution area and a polluted area according to the pollution condition of a landscape irrigation area;
Aiming at the potential pollution area and the polluted area, according to soil salt damage and the water quality condition of the existing irrigation water, a water quality-soil-plant multi-connected irrigation configuration model calculation system is used for obtaining the limit value of the salt ion content in the irrigation water;
Setting the time for the irrigation water to stay in the ion exchange tank body according to the limit value, and enabling the strongly acidic reaction group and the salt ions to carry out ion exchange reaction according to the set stay time so as to enable the salt ion content in the irrigation water to meet the limit value.
9. The method of claim 8, wherein when the apparatus further comprises a pretreatment filter system in communication with the ion exchange system, the method further comprises filtering the impurity contaminants in the irrigation water using the pretreatment filter system.
10. The method according to claim 8, wherein when the water purification device suitable for urban landscape irrigation further comprises an adsorption system, the ion exchange system is communicated with the adsorption system, the method further comprises removing COD in the irrigation water by the adsorption system.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120664748A (en) * | 2025-08-21 | 2025-09-19 | 生态环境部南京环境科学研究所 | Reclaimed water irrigation multi-factor blocking cooperative treatment system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108408994A (en) * | 2018-04-11 | 2018-08-17 | 山东省农业科学院蔬菜花卉研究所 | A kind of slight bitter desalination irrigation system |
| CN209143854U (en) * | 2018-12-07 | 2019-07-23 | 山东天泽水务工程有限公司 | High rigidity water softening treatment plant |
| CN110563212A (en) * | 2019-10-22 | 2019-12-13 | 清华大学 | Drinking strontium-rich mineral water prepared from salt-making distilled water and its method and system |
| CN218931877U (en) * | 2022-09-07 | 2023-04-28 | 上海新弘生态农业有限公司 | Crop irrigation water purification system |
| CN118661526A (en) * | 2024-06-24 | 2024-09-20 | 山东省农业科学院 | Brackish water drip irrigation water and fertilizer control method, equipment and system |
-
2024
- 2024-12-11 CN CN202411820889.8A patent/CN119390293A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108408994A (en) * | 2018-04-11 | 2018-08-17 | 山东省农业科学院蔬菜花卉研究所 | A kind of slight bitter desalination irrigation system |
| CN209143854U (en) * | 2018-12-07 | 2019-07-23 | 山东天泽水务工程有限公司 | High rigidity water softening treatment plant |
| CN110563212A (en) * | 2019-10-22 | 2019-12-13 | 清华大学 | Drinking strontium-rich mineral water prepared from salt-making distilled water and its method and system |
| CN218931877U (en) * | 2022-09-07 | 2023-04-28 | 上海新弘生态农业有限公司 | Crop irrigation water purification system |
| CN118661526A (en) * | 2024-06-24 | 2024-09-20 | 山东省农业科学院 | Brackish water drip irrigation water and fertilizer control method, equipment and system |
Non-Patent Citations (1)
| Title |
|---|
| 冯敏 主编: "《工业水处理》", 31 August 1996, 北京：海洋出版社, pages: 377 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120664748A (en) * | 2025-08-21 | 2025-09-19 | 生态环境部南京环境科学研究所 | Reclaimed water irrigation multi-factor blocking cooperative treatment system and method |
| CN120664748B (en) * | 2025-08-21 | 2025-10-31 | 生态环境部南京环境科学研究所 | Multi-factor clogging synergistic treatment system and method for reclaimed water irrigation |
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