CN212833079U - Device for treating waste water - Google Patents
Device for treating waste water Download PDFInfo
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- CN212833079U CN212833079U CN201922494304.9U CN201922494304U CN212833079U CN 212833079 U CN212833079 U CN 212833079U CN 201922494304 U CN201922494304 U CN 201922494304U CN 212833079 U CN212833079 U CN 212833079U
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Abstract
The device for treating waste water is composed of raw water tank and filter consisting of mechanical filter, active carbon filter, safety filter and precise filter, and each filter is connected with each other through a pipeline in sequence, the rear end of the precision filter is also provided with a first-stage reverse osmosis device, the first-stage reverse osmosis device is connected with a pure water tank for storage and transportation to a workshop, a raw water pump is also arranged between the raw water tank and the mechanical filter, a high-pressure pump is arranged between the precision filter and the first-stage reverse osmosis device, a pure water pump is arranged between the pure water tank and the workshop, the pure water pump adopts constant pressure water supply, the invention can remove dirt in the processor by additionally arranging the security filter, and still add reverse osmosis unit, can be cleaner with inside clearance, reach the dual function of treatment of water and device, improved the live time and the cost of maintenance of device greatly.
Description
Technical Field
The utility model relates to a sewage treatment field especially involves a device and processing method for waste water treatment usefulness.
Background
Water treatment is a very common clarification plant of our, but this kind of equipment has a lot of incrustations to produce after long-time processing, and this kind of incrustation scale can let treatment facility work efficiency step-down to have certain influence to equipment, get off for a long time the equipment spoilage also can beat greatly and improve, but in water treatment process, equipment also can not long-term the stopping, if add second set of equipment, greatly increased the cost.
Disclosure of Invention
The utility model discloses mainly solve and how let current equipment when placing the dirt, can let difficult scale deposit in the reactor under the condition of not shutting down again, running cost low grade advantage. The utility model mainly adopts the following technical proposal: the utility model provides a device for waste water treatment usefulness, it comprises former water tank and filter, this filter contains mechanical filter, activated carbon filter, safety filter ware, precision filter, and loops through the pipe connection between every filter, the precision filter rear end still is equipped with one-level reverse osmosis unit, one-level reverse osmosis unit connects the pure water case and deposits and carry to the workshop, still be equipped with raw water pump between former water tank and the mechanical filter, be equipped with the one-level high-pressure pump between precision filter and the one-level reverse osmosis unit, be equipped with the pure water pump between pure water case and the workshop, this pure water pump adopts the constant voltage water supply.
Preferably, the method comprises the following steps: be equipped with the connecting tube between one-level reverse osmosis unit and the active carbon filter, but backwash active carbon filter, the in-process of backwash can add chemical agent and carry out the backwash, reverse osmosis unit all adopts stainless steel.
Preferably, the method comprises the following steps: the mechanical filter is internally divided into an upper layer and a lower layer, a large-particle anthracite filter material is arranged in the upper layer, small-particle quartz sand is arranged in the lower layer, and the middle is separated by a partition plate with a hole.
The utility model has the advantages that: simple structure, convenient to use, the effectual of clean separation impurity, through the inside water of backward flow, let the abundant evolution that goes on of moisture content, do not waste any drip to promote the effect in pollution pond, not only the effect of sediment, greatly practiced thrift the water resource.
The utility model discloses an add the security filter and can go out the dirt in the treater to still add reverse osmosis unit, can be cleaner with inside clearance, reach the dual function of treatment water and device, improved the device's live time and cost of maintenance greatly.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The specific implementation mode is as follows:
the present invention will be described in detail with reference to the accompanying drawings: fig. 1 shows, a device for waste water treatment usefulness, it comprises former water tank 2 and filter 3, filter 3 contains mechanical filter 4, activated carbon filter 5, safety filter 6, precision filter 7, and loops through pipeline 1 between every filter and connect, precision filter 7 rear end still is equipped with one-level reverse osmosis unit 8, one-level reverse osmosis unit 8 is connected pure water tank 9 and is deposited and carry to workshop 12, still be equipped with former water pump 10 between former water tank 2 and the mechanical filter 4, be equipped with one-level high-pressure pump 11 between precision filter and the one-level reverse osmosis unit 8, be equipped with pure water pump 13 between pure water tank 9 and the workshop 12, this pure water pump 13 adopts the constant voltage to supply water.
Be equipped with connecting tube 1 between one-level reverse osmosis unit 8 and the active carbon filter 5, but backwash active carbon filter 5, the in-process of backwash can add chemical agent and carry out the backwash, reverse osmosis unit all adopts stainless steel.
The mechanical filter 4 is internally divided into an upper layer and a lower layer, a large-particle anthracite filter material is arranged in the upper layer, small-particle quartz sand is arranged in the lower layer, and the middle is separated by a partition plate with a hole.
The utility model discloses a method for using of device for waste water treatment, this method includes following step:
a. pretreatment of raw water: performing primary impurity treatment on water through a precision filter;
b. purifying water quality: the operation enters an active carbon filter, a security filter and a precision filter for water purification treatment, and finally reaches a first-stage infiltration device;
C. backwashing and water discharging: one side of the reverse osmosis device is connected with the activated carbon filter, so that impurities in the reverse osmosis filter are removed from a clean water source, and the other side of the reverse osmosis device is directly connected with the pure water tank which is connected with a workshop through a pure water pump.
4.1, raw water pretreatment system:
the purpose of raw water pretreatment is to solve the following problems: the method has the advantages that pollution and blockage of colloidal substances and suspended solid particles are prevented; secondly, preventing the pollution and blockage of organic matters; the pollution and blockage of microorganisms are prevented; fourthly, preventing oxide from oxidizing and damaging the film; and fifthly, the stable water yield of the reverse osmosis device is kept, so that the stable operation and the service life of the reverse osmosis device are ensured.
The pretreatment part equipment mainly comprises raw water booster pump, precise filter and other equipment.
Raw water tank
The system is used for storing raw water entering the system, and aims to adjust the change of inflow, prevent the inflow fluctuation from influencing the system operation and ensure the stability of the inflow of the system;
raw water booster pump
The raw water booster pump is selected according to the water treatment amount and the water supply pressure of the filter, is made of stainless steel, and has the characteristics of small volume, high efficiency, low noise and the like.
Mechanical filter
This filter belongs to pressure type filter equipment, utilizes two kinds of filter media, under certain pressure, makes the stoste pass through this medium, and the hole between the filter material dams and floats obtains and reach filterable purpose, and the filtering liquid flows along the gap between the filter material, and impurity is held back gradually, belongs to the membrane filtration, filtering aquatic suspended solid, insoluble particles thing, foreign matter such as flocculent precipitate, decoloration are deodorized, and the filter material gap plays the screening effect to the suspended solid and makes the suspended solid easily hold back on the filter material surface. When a certain amount of dirt is trapped on the surface layer of the filter material to form the filter membrane, the pressure difference between the front and the rear of the filter will rise rapidly along with the time until the filter membrane fails. Impurities are intercepted in the filtering layer by utilizing a back washing mode, and the impurities are washed out of the filter, so that the initial filtering function is recovered.
The system places lighter large-particle anthracite filter materials on the upper part of the filter layer, and small-particle quartz sand is arranged on the lower part of the filter layer, so that the efficiency of the whole filter layer can be fully exerted, and the pollutant interception capability is improved. The device is mainly used for removing particles, bacteria, organic matters, colloid, suspended matters, turbidity and the like in water; the filter material with different specific gravity and particle size is selected, the particle size is distributed step by step from top to bottom, the main filter surface is arranged on the fine quartz sand surface, but the anthracite filter material is added to increase and deepen the filter surface, the sewage interception capability of the filter layer is increased by utilizing the deep layer filtering principle, the water production capability is high, the penetration of impurities is deep, and the filtering speed is increased on the premise of ensuring the quality of the discharged water. The system is designed into a 2-stage phi 2500 vertical 304 stainless steel multi-medium filter; single unit throughput: 50m3/h, and the water flow velocity in the cylinder is 10 m/h; filling quartz sand in the filter;
the multi-media filter is made of 304 stainless steel, a pneumatic control valve is adopted, and the filter is provided with a pressure gauge, a flow meter and a sampling valve, so that the running state of the multi-media filter can be conveniently monitored, and the filtering and backwashing can be judged.
The multi-media filter adopts a dynamic operation sequence backwashing mode, backwashing period is controlled by the back-and-forth pressure difference of equipment or the operation time of the equipment, and when the equipment operates to a set value, the equipment performs backwashing. The backwashing strength is required to make the filter layer expand by 15-25%, and the filter material is preferably scrubbed by compressed air during backwashing, and the strength is 18-25L/s.m 2.
Each filter should be equipped with a complete valve, internal connections, various accessories and controls, etc.
Activated carbon filter
The specific surface area of the activated carbon reaches 800-2000 m2/g, the activated carbon has a large specific surface area and specially developed micropores, so that the adsorption capacity is large, the adsorption capacity is strong, the adsorption effect mainly depends on small holes, transition holes and large holes of the activated carbon, physical adsorption active points and chemical adsorption active points exist, and under the comprehensive adsorption effect of the activated carbon, microorganisms, residual chlorine, colloids and organic matters can be well treated, and chemical harmful substances can be well treated, so that the quality of effluent is ensured; the method has the advantages that the oxidative damage of free chlorine in water to ion exchange resin and a nanofiltration membrane is prevented, certain cations are adsorbed, the activated carbon filter utilizes the pressure of raw water to carry out filtration, back washing, forward washing and back washing, the cycle of the back washing is generally 3-6 days, the cycle depends on the water quality of the raw water, when the filtration time reaches a certain time or the difference value (P1-P2) of the pressure of inlet water and outlet water of the activated carbon filter is more than 0.5MPa, the back washing is needed, and when the adsorption quantity of high-quality coconut shell activated carbon reaches saturation, the activated carbon needs to be replaced;
the removal of free chlorine from water by the activated carbon filter can be performed very thoroughly. The dechlorination of the activated carbon is not simple physical adsorption, but takes place the catalytic action on the surface of the activated carbon, so that when the free chlorine is promoted to pass through the activated carbon filter layer, the free chlorine is quickly hydrolyzed and decomposed into atomic oxygen, and the reaction is as follows:
the atomic oxygen and carbon atoms are rapidly transformed from an adsorbed state to a combined state:
C+2[O]→CO2↑
as mentioned above, the reaction of chlorine with activated carbon can be represented by the following formula:
C+2Cl2+2H2O→HCl+CO2↑
from this equation, it can be seen that dechlorination of activated carbon does not have the problem of adsorption saturation, only the loss of activated carbon, and therefore, when activated carbon is used for dechlorination, it can be operated for a long time.
The system is designed into a 2-stand activated carbon filter according to requirements; the output of a single device is as follows: 50m3/h (running flow: 10 m/h);
the activated carbon filter is made of 316L stainless steel, adopts a pneumatic control valve, and is provided with a pressure gauge, a flowmeter and a sampling valve, so that the operation condition of the activated carbon filter can be conveniently monitored, and the filtering and backwashing can be conveniently judged.
Precision filter and safety filter
In order to prevent fine particles in water from entering the reverse osmosis membrane component, a security filter is specially arranged.
The system is configured with 2 straight linesThe filter material is SUS304, 30 PP gradient melt-blown filter cores with the length of 1 meter and the length of 3-5 mu are filled in a single filter, the pollutant carrying capacity is large, and the water yield is 60m3H is used as the reference value. The filter can be maintained at about 3 months under normal working condition, and when the pressure difference between the inlet and the outlet of the filter is 1Kgf/cm2The filter element needs to be replaced. The filter structure meets the requirement of quick assembly and disassembly, and the surface of the filter is polished.
Reverse osmosis RO desalination section
The whole reverse osmosis system consists of 2 sets of first-stage reverse osmosis devices.
First-stage Reverse Osmosis (RO) desalination part
A first-stage high-pressure pump: according to the water inflow and the performance characteristics of the reverse osmosis membrane element, the water inflow of the reverse osmosis device is a CDMF42-80 type multi-stage high-pressure pump at 25 ℃, and the flow is 50m3H, the lift is 141m, and the power is 30 KW. The pump is of a stainless steel structure and has the characteristics of small volume, high efficiency, low noise and the like.
A first-stage reverse osmosis device:
the reverse osmosis device is a pre-desalted heart part of the project, and water after reverse osmosis treatment can remove a great part of inorganic salts, organic matters, microorganisms and bacteria. Whether the design is reasonable or not directly relates to project investment cost, the running economic benefit of the whole system, the service life and the reliability, the simplicity and the convenience of operation.
First-level reverse osmosis system equipment model selection
The membrane element is made of aromatic polyamide composite membrane, the element is compounded by three layers of membranes, the surface layer is made of aromatic polyamide materials, the thickness is 2000 angstroms, the element is supported by a microporous polysulfone layer, the element can bear high pressure and has good resistance to mechanical tension and chemical erosion, the element has a large membrane area of 400 square feet, has large water yield and can resist NaCl and CaCl2、 MgCl2With a salt rejection of 99%.
Process design of primary reverse osmosis device
The single set of reverse osmosis unit was equipped with 6 core module housings, 36 BW30-400 membrane elements, arranged in 4-2 rows. The water inflow is 50m3H, operationThe working pressure is about 1.4Mpa, and the water yield of the device is 35m3H (25 ℃), desalination rate not less than 98%, concentrated water discharge 12m3And about/h.
The first-level reverse osmosis device is provided with an on-site instrument for directly displaying important parameters of the device such as water inlet pressure, concentrated water pressure, water production flow, concentrated water flow, water inlet conductance, water outlet conductance and the like during operation.
The water side is produced to every subassembly shell of one-level reverse osmosis is equipped with the sample connection, makes things convenient for the sample.
Cleaning a reverse osmosis device: no matter how perfect the pretreatment process is, the surface of the reverse osmosis membrane always accumulates various pollutants in the water in a long-term running process. Thereby reducing the performance (water yield, retention rate and desalination rate) of the device and increasing the pressure difference between the inlet and the outlet of the component. For this reason, it is necessary to perform a regular chemical cleaning and sometimes a sterile treatment in addition to a low-pressure rinsing before the device is started or stopped on a daily basis.
The system is provided with a set of chemical cleaning device, and the reverse osmosis membrane element can be chemically cleaned when being polluted by feed water and the system performance index is reduced to a certain degree, so that the due excellent desalting and water producing performances of the reverse osmosis membrane element can be recovered. The process is as follows:
pipeline
The high-pressure part of the reverse osmosis device is made of stainless steel, and the low-pressure part of the reverse osmosis device is made of SUS 304;
all connecting pipes in the system are SUS 304. The filter is made of SUS304, and the water tank is made of SUS 304.
Claims (3)
1. The utility model provides a device for waste water treatment usefulness, it comprises former water tank and filter, its characterized in that this filter contains mechanical filter, activated carbon filter, safety filter ware, precision filter, and loops through the pipe connection between every filter, the precision filter rear end still is equipped with one-level reverse osmosis unit, one-level reverse osmosis unit connects the pure water case and deposits and carry to the workshop, still be equipped with former water pump between former water tank and the mechanical filter, be equipped with one-level high-pressure pump between precision filter ware and the one-level reverse osmosis unit, be equipped with pure water pump between pure water case and the workshop, this pure water pump adopts the constant voltage to supply water.
2. The apparatus of claim 1, wherein a connection pipe is provided between the primary reverse osmosis device and the activated carbon filter, the activated carbon filter can be backwashed, chemical agents can be added for backwashing during backwashing, and the reverse osmosis devices are made of stainless steel.
3. An apparatus as claimed in claim 1, wherein the mechanical filter is divided into an upper layer and a lower layer, the upper layer is provided with large-particle anthracite filter material, the lower layer is provided with small-particle quartz sand, and the middle is separated by a partition plate with holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922494304.9U CN212833079U (en) | 2019-12-31 | 2019-12-31 | Device for treating waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922494304.9U CN212833079U (en) | 2019-12-31 | 2019-12-31 | Device for treating waste water |
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| Publication Number | Publication Date |
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| CN212833079U true CN212833079U (en) | 2021-03-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111072174A (en) * | 2019-12-31 | 2020-04-28 | 浙江升腾环境工程有限公司 | Device for treating wastewater and treatment method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111072174A (en) * | 2019-12-31 | 2020-04-28 | 浙江升腾环境工程有限公司 | Device for treating wastewater and treatment method thereof |
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