CN210286951U - Reclaimed water recycling treatment system for industrial and mining enterprises - Google Patents
Reclaimed water recycling treatment system for industrial and mining enterprises Download PDFInfo
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- CN210286951U CN210286951U CN201921005182.6U CN201921005182U CN210286951U CN 210286951 U CN210286951 U CN 210286951U CN 201921005182 U CN201921005182 U CN 201921005182U CN 210286951 U CN210286951 U CN 210286951U
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Abstract
A reclaimed water recycling treatment system for industrial and mining enterprises comprises: a multi-media filter; a reverse osmosis recycling system for filtering the industrial wastewater again; the middle pipeline is arranged among the multi-medium filter, the precision filter and the reverse osmosis system, and a high-pressure pump is arranged on the middle pipeline; and the RO water production tank is used for collecting and storing the treated industrial wastewater and is connected with the RO system. The utility model discloses a Reverse Osmosis (RO) technology is handled industrial waste water, and its advantage lies in: the water quality advantage is very obvious, the effluent completely meets the requirement of pure water, the water quality is high and stable, the main index requirements of tap water and pure water can be met, and the method has a good removal effect on salt ions, organic matters, SS and the like in the wastewater. The reverse osmosis process has a good protection effect on a subsequent membrane system, and the effluent meets the water quality requirement of the RO membrane. The utility model provides a reuse of reclaimed water processing system in industrial and mining enterprises is suitable for industrial and mining enterprises' sewage treatment reuse of reclaimed water engineering very much.
Description
Technical Field
The embodiment of the utility model provides a relate to sewage treatment device technical field, concretely relates to reuse of reclaimed water processing system in industrial and mining enterprises.
Background
In industrial production, a large amount of water resources are used for production processes of film coating, cutting, edge grinding, chamfering, polishing, thinning, photoetching, chemical strengthening and the like of workpieces, and accordingly a large amount of industrial wastewater is generated.
At present, the industrial wastewater treatment is all responsible for by municipal sewage companies, and has no targeted sewage scheme, so that the problems of poor pertinence, long sewage treatment time, poor sewage treatment effect and the like in the existing sewage treatment are caused.
SUMMERY OF THE UTILITY MODEL
In summary, how to provide a treatment system suitable for industrial wastewater treatment and recovery to solve the problems of poor pertinence, long wastewater treatment time, poor wastewater treatment effect and the like in the conventional wastewater treatment manner becomes a problem to be solved by the technical staff in the field.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
the utility model provides a reuse of reclaimed water processing system of industrial and mining enterprises, include:
a multi-media filter for filtering industrial wastewater;
a reverse osmosis system for re-filtering the industrial wastewater;
the middle pipeline is arranged between the multi-medium filter and the reverse osmosis system and used for conveying industrial wastewater, and a high-pressure pump is arranged on the middle pipeline;
and the RO water production tank is used for collecting and storing the treated industrial wastewater and is connected with the reverse osmosis system.
Preferably, the invention also comprises a raw water tank for storing the industrial wastewater to be treated, and the raw water tank is connected with the multi-media filter through a raw water pump.
Preferably, the present invention further comprises an intermediate tank disposed between the multimedia filter and the intermediate pipe, for storing the fluid generated by the multimedia filter and outputting it through the intermediate pipe.
Preferably, the scale inhibitor adding system comprises a scale inhibitor adding pump and a reducing agent adding pump, wherein the scale inhibitor adding pump and the reducing agent adding pump operate independently and are respectively connected with the middle pipeline.
Preferably, in the present invention, the dosing system further includes an HP regulation dosing pump, and the HP regulation dosing pump is disposed on a pipeline connected between the raw water tank and the raw water pump.
Preferably, a first flow meter is arranged on the pump outlet of the raw water pump.
Preferably, a second flow meter is provided at the outlet of the reverse osmosis system.
Preferably, a lift pump is further disposed on the intermediate pipeline.
Preferably, a backwashing pump for backwashing the multimedia filter is arranged between the raw water tank and the multimedia filter, and the raw water tank is connected with the backwashing pump and forms a fluid one-way circulation backwashing path.
The invention has the following beneficial effects:
the invention provides a reclaimed water recycling treatment system for industrial and mining enterprises, which comprises: a multi-media filter for filtering industrial wastewater; a reverse osmosis system for re-filtering the industrial wastewater; the middle pipeline is arranged between the multi-medium filter and the reverse osmosis system and used for conveying industrial wastewater, and a high-pressure pump is arranged on the middle pipeline; and the RO water production tank is used for collecting and storing the treated industrial wastewater and is connected with the RO system.
Through the structural design, the invention adopts Reverse Osmosis (RO) process to treat industrial wastewater, and has the advantages that: the water quality advantage is very obvious, the effluent basically meets the requirement of pure water, the water quality is high and stable, the main index requirements of tap water and pure water can be met, and the method has a good removal effect on salt ions, organic matters, SS and the like in the wastewater. The reverse osmosis process has a good protection effect on a subsequent membrane system, and the effluent meets the water quality requirement of the RO membrane. The reclaimed water recycling treatment system for industrial and mining enterprises provided by the invention is very suitable for treating sewage of the industrial and mining enterprises.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
FIG. 1 is a block diagram schematically illustrating the construction of a reclaimed water recycling system for industrial and mining enterprises in an embodiment of the present invention;
in fig. 1, the correspondence between the component names and the reference numerals is:
a multi-medium filter 1, a reverse osmosis system 2, a high-pressure pump 3, an RO water production tank 4, a raw water tank 5,
A middle water tank 6, a scale inhibitor dosing pump 7, a reducing agent dosing pump 8, an HP adjusting dosing pump 9,
A first flowmeter 10, a second flowmeter 11, a lift pump 12, a backwash pump 13 and a raw water pump 14.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a block diagram schematically illustrating a structure of a reclaimed water recycling system in an industrial and mining enterprise according to an embodiment of the present invention.
The invention provides a reclaimed water recycling treatment system for industrial and mining enterprises, which is used for recycling, treating and secondarily utilizing industrial and mining enterprise wastewater.
In the invention, from the beginning of industrial wastewater collection until the completion of industrial wastewater treatment (clean water collection and concentrated water discharge), the invention consists of a raw water tank 5, a raw water pump 14, a first flow meter 10, a multi-media filter 1, an intermediate water tank 6, a lift pump 12, a high-pressure pump 3, a reverse osmosis system 2, a second flow meter 11 and an OR product water tank 4 which are arranged in sequence along the industrial wastewater treatment process sequence, and the devices are connected in sequence according to the process sequence.
Wherein, industrial waste water is collected and temporarily stored by the raw water tank 5, and the raw water pump 14 is used for providing the circulation power of the industrial waste water, so that the industrial waste water in the raw water tank 5 can be conveyed to the multi-media filter 1.
A first flow meter 10 is provided between the raw water pump 14 and the multimedia filter 1, the output amount of the industrial wastewater in the raw water tank 5 can be acquired by the first flow meter 10, and the output amount of the industrial wastewater in the raw water tank 5 is controlled according to the treatment capacity of the multimedia filter 1.
The multi-media filter 1 can carry out primary filtration to industrial wastewater, water after primary filtration is temporarily stored to the intermediate water tank 6, and then enters the reverse osmosis system 2 in a high water pressure state for deep filtration after primary pressurization of the lifting pump 12 and secondary pressurization of the high-pressure pump 3, so that final purification of the industrial wastewater is realized.
The second flowmeter 11 is arranged on the purified water outlet of the reverse osmosis system 2, and can monitor the purified water yield of the invention in real time. The OR water production tank 4 is used for temporarily storing purified water so as to realize secondary utilization of purified industrial wastewater.
The treatment of the industrial wastewater is not limited to mechanical filtration, but also comprises treatment means such as chemical treatment and the like, so the invention also provides a dosing system, the pressurization system comprises a scale inhibitor dosing pump 7, a reducing agent dosing pump 8 and an HP regulation dosing pump 9, the three dosing pumps operate independently and are installed on different pipelines, and treatment agents can be added into water flowing in the pipelines.
The invention provides a reclaimed water recycling treatment system for industrial and mining enterprises, which comprises: a multi-media filter 1 for filtering industrial wastewater; a reverse osmosis system 2 for re-filtering the industrial wastewater; the middle pipeline is arranged between the multi-medium filter 1 and the reverse osmosis system 2 and used for conveying industrial wastewater, and a high-pressure pump 3 is arranged on the middle pipeline; and the RO water production tank 4 is used for collecting and storing the treated industrial wastewater, and the RO water production tank 4 is connected with the reverse osmosis system 2. Through the structural design, the invention adopts Reverse Osmosis (RO) process to treat industrial wastewater, and has the advantages that: the water quality advantage is very obvious, the effluent basically meets the requirement of pure water, and the water quality is high and more stable. Can meet the main index requirements of tap water and pure water, and has better removal effect on salt ions, organic matters, SS and the like in the wastewater. The reverse osmosis process has a good protection effect on a subsequent membrane system, and the effluent meets the water quality requirement of the RO membrane.
In one embodiment of the invention, a microfiltration filter is provided between the intermediate tank 6 and the reverse osmosis system 2 to achieve microfiltration of the water body.
Based on the characteristics of components of industrial wastewater, the invention adopts a treatment process mainly comprising pretreatment, multi-media filter, precision filter and RO membrane treatment, and is a treatment technology with low investment, quick recovery and stable performance. In the invention, the main devices and spare and accessory parts forming the invention all adopt high-quality products at home and abroad, and the pipe is high-quality UPVC, stainless steel or carbon steel pipeline, thus ensuring the perfect configuration of the whole system, continuous and stable operation, simple operation and stable and reliable effluent quality.
In one embodiment of the invention, the design water inflow is 80 tons/hr, the design water yield is more than or equal to 56 tons/hr, and the water yield recovery rate is more than or equal to 70.0%. The process is described as follows: raw water is collected to former water tank 5 from each collection well in workshop, gets into multi-media filter 1 (can adjust according to concrete water inlet condition, interior sand filtration and charcoal filter upper and lower filter bed etc.) through raw water pump 14, under certain pressure, with higher water of turbidity through the filter material filtration of certain thickness, the effectual suspended solid of holding back the aquatic, organic matter, colloidal particle, microorganism, chlorine, smell flavor and partial heavy metal ion etc. of detaching, utilize fast, the filter fineness height, cut dirty big advantage of capacity, reach the effect of absorption partial salinity, soft quality of water, reduce water turbidity, water purification quality. The sewage enters the precision filter after passing through the multimedia filter 1, the precision filter adopts a formed filter material, under the action of pressure, stock solution passes through the filter material, filter residues are remained on the tube wall, and filtrate flows out through the filter material, so that the purpose of filtering water quality is achieved.
The main equipment performance parameters constituting the invention are as follows:
1. multi-media filter
The invention adopts a quartz sand tank filter (an active carbon filter layer can be actually configured according to water quality, and the filter material can be adjusted according to specific water inlet), and has a certain adsorption effect on oil. The multi-medium filter 1 removes impurities and pollutants from stock solution through various media under certain pressure by using different performances and parameters of the various filter media, so that the water quality achieves the expected purpose. The multi-medium filter mainly utilizes the filler to reduce the turbidity of water, and intercepts and removes organic matters, suspended matters, silt, colloidal particles, microorganisms, chlorine odor and partial heavy metal ions in the water, thereby being important equipment for purifying the water.
The main body composition of the multimedia filter 1 is as follows: the equipment mainly comprises a tank body, a water distribution system, a water collection system, a filter material layer, a supporting layer, an internal matched pipeline and the like, the components can be adjusted and changed according to needs, main pipelines such as raw water inlet, clear water outlet, backwashing drainage and the like are externally connected with a control valve, a pressure gauge, a sampling valve and the like matched with the main pipelines, a backwashing pump 13 is installed on the backwashing drainage, and backwashing pressure is provided by the backwashing pump 13. The operation process of the multi-media filter 1 mainly comprises two processes of filtering and backwashing which are alternately circulated.
The multi-media filter 1 is characterized in that: the filter is a cylindrical tank body, quartz sand is used as a filter material, and pressure type filtration is adopted; the filter area is large, the treated water amount is large, the operation effect is good, and the filler cost is low; double filter materials can be adopted, so that the running resistance is reduced; the filter material is corrosion resistant, high in porosity, large in dirt intercepting capacity, moderate in density and easy to backwash; two or more filter media have complementary functions and can effectively solve the water quality problem.
2. Precision filter
The precise filter adopts a microfiltration filter. When the pressure difference between the inlet and the outlet of the precision filter is larger than a set value, the precision filter should be replaced. The precise filter adopts a corrosion-resistant stainless steel shell, and the filter element is made of polypropylene through spray melting. The formed filter material comprises: filter cloth, filter screen, filter disc, sintering filter tube, wire-wound filter element, melt-blown filter element, etc. Because of the difference of the filter materials, the filtering aperture is also different. The precise filtration is a filtration between sand filtration (rough filtration) and ultrafiltration, the filtration pore size is generally in the range of 5-10 μm, and the precise filtration is selected according to the difference between the front and the back of the actual process flow section.
3. Reverse osmosis system (RO)
Reverse osmosis, also known as Reverse Osmosis (RO), is a process in which a solvent in a solution is separated by a reverse osmosis membrane (or semi-permeable membrane) under a certain pressure, and is called reverse osmosis because it is opposite to the natural osmosis. According to different osmotic pressures of various materials, the reverse osmosis method with the osmotic pressure higher than that can achieve the purposes of separation, extraction, purification and concentration. The reverse osmosis mainly removes dissolved salts, organic matters, silica colloid, macromolecular substances, particles which are not removed by pretreatment and the like in water. In the invention, the reverse osmosis system uses a high-quality membrane with large water permeability, high desalination rate, good chemical stability and good mechanical strength.
The reverse osmosis system is provided with a flow control valve for concentrated water drainage, and the recovery rate of water can be controlled. The total water supply pipe and the water production pipe of the reverse osmosis system are provided with sampling points as required. The sampling valve is made of UPVC material or equivalent to the UPVC material. The RO membrane module is arranged on a combined frame, all pipelines and joints are arranged on the combined frame, and the combined frame also comprises all brackets, fasteners, clamps and other accessories. The pipeline, the flange and the valve are made of stainless steel or UPVC. The reverse osmosis system 2 can be designed in an automatic control operation mode according to the water level of the water tank and the water production quantity of the system. If the system needs to be started, shut down or switched, the system is manually switched after being confirmed by an operator.
4. Reverse osmosis cleaning device
After long-term operation, the reverse osmosis membrane module is polluted by certain difficultly-washed pollutants, such as long-term trace salt scaling and organic matter accumulation, which cause the performance reduction of the membrane module, and the operation pressure is increased, so that the reverse osmosis membrane module is cleaned by using chemical agents to restore the normal desalting capability. The reverse osmosis cleaning comprehensively judges the pollution condition of the membrane according to indexes such as pressure difference between sections, desalination rate, water yield and the like, and different medicaments are adopted for cleaning after the pollution reason is determined. When cleaning, a specific cleaning solution with a certain concentration is prepared to remove pollutants in the reverse osmosis membrane and restore the original characteristics of the reverse osmosis membrane. No matter how thorough the pretreatment is, the reverse osmosis membrane surface can still be polluted by scale after long-term use. Therefore, in order to not interfere the existing RO system of the owner unit, the scheme is designed with a set of reverse osmosis cleaning system, and the membrane module can be cleaned after being polluted.
The main cleaning agents used in the present invention are described below:
1. scale inhibitor
The scale inhibitor dosing device is used for adding a high-efficiency special scale inhibitor before pretreated raw water enters reverse osmosis so as to prevent scaling on a reverse osmosis concentrated water side. The reverse osmosis process includes flowing raw water from one end to the other end of the membrane, allowing water molecules to permeate the membrane surface and to reach the other end of the membrane surface, and allowing inorganic salt ions to remain on the original side while the raw water is gradually concentrated and the water molecules are continuously taken away from the raw water and remain on the raw waterThe salt content in the raw water is gradually increased, namely, the raw water is gradually concentrated and finally becomes concentrated water which is discharged from the device. The concentration of various ions in the concentrated water is multiplied. Ca in natural water source2+、Mg2+、Ba2+、Sr2+、HCO3 -、SO4 2-、SiO2Etc. the concentration product of ions that tend to form scale is generally less than their equilibrium constant, so no scale will appear, but after concentration, the concentration product of each ion may greatly exceed the equilibrium constant, thus causing severe scale. The criteria for determining water scaling are: langelier (LSI) for carbonate scale; when LSI < 0, no scale is formed, and when LSI > 0, scale is formed; the sulfate scale is determined by a saturation index, the ratio of the product of the concentrations of the cations and the anions in water to an equilibrium constant is the saturation index, and when the saturation index is less than 1, the sulfate scale is not formed, otherwise, the sulfate scale is formed.
2. Reducing agent
The medicament has the function of reducing the oxidant possibly existing in raw water, and excessive NaHSO needs to be added3To reduce the oxidizing agent possibly existing in the raw water to prevent the oxidative degradation of the membrane by the oxidizing substances, thereby avoiding the damage to the reverse osmosis membrane module.
3. Hydrochloric acid
The effect of this medicament is that the PH value of adjusting into water is between 6 ~ 8, prevents that RO from intaking because of the too high scale deposit of PH value, guarantees long-term, safe, the reliable operation of system.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. The utility model provides a reuse of reclaimed water processing system of industrial and mining enterprise which characterized in that includes:
a multi-media filter (1) for filtering industrial wastewater;
a reverse osmosis system (2) for re-filtering the industrial waste water;
the intermediate pipeline is arranged between the multi-medium filter and the reverse osmosis system and used for conveying industrial wastewater, and a high-pressure pump (3) is arranged on the intermediate pipeline;
and the RO water production tank (4) is used for collecting and storing the treated industrial wastewater, and is connected with the reverse osmosis system.
2. The industrial and mining enterprise reclaimed water reuse treatment system according to claim 1,
the system also comprises a raw water tank (5) for storing the industrial wastewater to be treated, wherein the raw water tank is connected with the multi-media filter through a raw water pump (14).
3. The industrial and mining enterprise reclaimed water reuse treatment system according to claim 2,
the multi-media filter device also comprises an intermediate water tank (6), wherein the intermediate water tank is arranged between the multi-media filter and the intermediate pipeline, and is used for storing the fluid generated by the multi-media filter and outputting the fluid through the intermediate pipeline.
4. The industrial and mining enterprise reclaimed water reuse treatment system according to claim 3,
the scale inhibitor dosing device is characterized by further comprising a dosing system, wherein the dosing system comprises a scale inhibitor dosing pump (7) and a reducing agent dosing pump (8), and the scale inhibitor dosing pump and the reducing agent dosing pump independently operate and are respectively connected with the middle pipeline.
5. The industrial and mining enterprise reclaimed water reuse treatment system according to claim 4,
the dosing system further comprises an HP adjusting dosing pump (9), and the HP adjusting dosing pump is arranged on a pipeline connected between the raw water tank and the raw water pump.
6. The industrial and mining enterprise reclaimed water reuse treatment system according to claim 2,
and a first flowmeter (10) is arranged on the outlet of the raw water pump.
7. The industrial and mining enterprise reclaimed water reuse treatment system according to claim 6,
a second flowmeter (11) is arranged on the outlet of the reverse osmosis system.
8. The industrial and mining enterprise reclaimed water reuse treatment system according to claim 1,
a lift pump (12) is also arranged on the middle pipeline.
9. The industrial and mining enterprise reclaimed water reuse treatment system according to any one of claims 2 to 5,
and a backwashing pump (13) for backwashing the multi-media filter is arranged between the raw water tank and the multi-media filter, and the raw water tank is connected with the backwashing pump and forms a fluid one-way circulation backwashing path.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921005182.6U CN210286951U (en) | 2019-06-28 | 2019-06-28 | Reclaimed water recycling treatment system for industrial and mining enterprises |
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| CN201921005182.6U CN210286951U (en) | 2019-06-28 | 2019-06-28 | Reclaimed water recycling treatment system for industrial and mining enterprises |
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| CN210286951U true CN210286951U (en) | 2020-04-10 |
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| CN201921005182.6U Active CN210286951U (en) | 2019-06-28 | 2019-06-28 | Reclaimed water recycling treatment system for industrial and mining enterprises |
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Address after: 430000 10th, 11th and 12th floors, unit 1, Jinxin building, No.16, Liye Road, Wuhan Economic and Technological Development Zone, Hubei Province (incubator hplm-b1005) Patentee after: Wuhan zhongxiulian Environmental Technology Co.,Ltd. Address before: No.6, 7th floor, building 8, block A2, 1872, China Merchants Park, 288 Jiangcheng Avenue, Hanyang District, Wuhan City, Hubei Province, 430000 Patentee before: Wuhan zhongxiulian Environmental Technology Co.,Ltd. |
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