CN111302540A - Thermal power plant desulfurization wastewater electrolytic adsorption treatment system and treatment method - Google Patents
Thermal power plant desulfurization wastewater electrolytic adsorption treatment system and treatment method Download PDFInfo
- Publication number
- CN111302540A CN111302540A CN202010123748.6A CN202010123748A CN111302540A CN 111302540 A CN111302540 A CN 111302540A CN 202010123748 A CN202010123748 A CN 202010123748A CN 111302540 A CN111302540 A CN 111302540A
- Authority
- CN
- China
- Prior art keywords
- water
- tank
- sand filter
- wastewater
- water tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/4602—Treatment of water, waste water, or sewage by electrochemical methods for prevention or elimination of deposits
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Abstract
The invention relates to the technical field of concentration treatment of desulfurization wastewater of a thermal power plant, and discloses an electrolytic adsorption treatment system of desulfurization wastewater of the thermal power plant, which comprises a raw water tank, an electrochemical descaling system, a quartz sand filter, an electrolytic adsorption device, a manganese sand filter, a produced water tank and a wastewater collecting tank, wherein the desulfurization wastewater after reaching the standard is discharged to the raw water tank, a water outlet of the raw water tank is connected with a water inlet of the electrochemical descaling system, water discharged by the electrochemical descaling system is divided into two paths, one path is a cleaning wastewater discharge outlet, the other path is a produced water discharge outlet which is connected with a water inlet of an intermediate water tank A, the concentration and reduction treatment of the desulfurization wastewater can be realized by combining the electrochemical descaling system and the electrolytic adsorption, the chemical dosing is not needed, the system is simple, the adaptability to water quality is strong.
Description
Technical Field
The invention belongs to the technical field of concentration treatment of thermal power plant desulfurization wastewater, and particularly relates to an electrolytic adsorption treatment system and a treatment method for thermal power plant desulfurization wastewater.
Background
With the issuance of various national environmental protection policies and the strict implementation of pollution discharge permit systems, most of thermal power plant desulfurization wastewater cannot be discharged outside and must be subjected to evaporation and solidification treatment, and when the desulfurization wastewater amount is large, a concentration and reduction treatment system is required to be additionally arranged at the front end.
At present, the concentration and decrement treatment technology of the desulfurization wastewater mainly comprises two main types, namely a membrane method and a thermal method. The membrane method concentration comprises high-pressure roll type reverse osmosis, disc tube type reverse osmosis, electrodialysis, forward osmosis and the like, and the thermal method concentration comprises flue gas waste heat flash evaporation, low-temperature negative-pressure multi-effect concentration, flue gas waste heat concentration, a seed crystal method MVR and the like. The operation conditions of the prior cases show that the two main types of concentration technologies have certain limitations. The membrane method concentration has high requirement on the quality of inlet water, and a strict and perfect pretreatment system must be arranged at the front end to remove pollutants such as hardness, organic matters and the like, so that the pretreatment process is long, the occupied area of equipment is large, the dosage is large, and the medicament cost is high; although the thermal method concentration does not need pretreatment, crystal seeds need to be added to prevent the calcium sulfate from scaling, the actual scale prevention effect is not verified by engineering, once scaling occurs, equipment is difficult to clean, and the heat exchange efficiency is greatly reduced.
When the desulfurization wastewater is subjected to concentration and decrement treatment by adopting the electrolytic adsorption process, the problems in the prior art can be avoided, pretreatment is not required, the process flow of the system is simple, the adaptability to water quality is high, the occupied area is small, the equipment is easy to operate, and meanwhile, the chemical adding treatment is not required, so that the operation cost of the concentration treatment of the desulfurization wastewater can be obviously reduced, and the economic benefit and the environmental protection benefit are good.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a thermal power plant desulfurization wastewater electrolytic adsorption treatment system and a treatment method.
(II) technical scheme
In order to realize the purpose, the water quality and water quantity characteristics of the wet flue gas desulfurization wastewater of the thermal power plant are combined, the invention aims to overcome the technical defects of concentration and reduction of the existing desulfurization wastewater, and provides the system and the method for the electrolytic adsorption treatment of the desulfurization wastewater of the thermal power plant.
The invention provides an electrolytic adsorption treatment system for desulfurization wastewater of a thermal power plant, which comprises a raw water tank, an electrochemical descaling system, a quartz sand filter, an electrolytic adsorption device, a manganese sand filter, a water production tank and a wastewater collecting tank.
The desulfurization wastewater after reaching the standard is discharged to a raw water tank, a water outlet of the raw water tank is connected with a water inlet of an electrochemical descaling system, water discharged by the electrochemical descaling system is divided into two paths, one path is a cleaning wastewater discharge port, and the other path is a produced water discharge port connected with a water inlet of an intermediate water tank A; the water outlet of the intermediate water tank A is connected with the water inlet of a quartz sand filter, the water outlet of the quartz sand filter is connected with the intermediate water tank B, the water outlet of the intermediate water tank B is divided into two paths, one path is connected with the water inlet of an electrolytic adsorption device, and the other path is connected with the quartz sand filter for backwashing; the water outlet of the electrolytic adsorption device is divided into two paths, one path is a concentrated water outlet, and the other path is a produced water outlet which is connected with the water inlet of the middle water tank C; the water outlet of the middle water tank C is connected with the water inlet of the manganese sand filter, and the water outlet of the manganese sand filter is connected with the water inlet of the water production tank; and the water outlet of the water production tank is provided with two paths, one path is connected with the desulfurization process water tank, and the other path is connected with the manganese sand filter for backwashing. Simultaneously, respectively discharging the cleaning wastewater of the electrochemical descaling system, the backwashing wastewater of the quartz sand filter, the concentrated water of the electrolytic adsorption device and the backwashing wastewater of the manganese sand filter into a wastewater collecting tank, and discharging the effluent of the wastewater collecting tank to a terminal solidification system.
The waste water collecting tank comprises a shell, the shell is a rectangular block, the interior of the shell is of a hollow structure, the hollow part in the shell penetrates through the top of the shell, a speed reducing motor is fixedly mounted on the inner wall of the bottom of the shell, the cross section of the speed reducing motor is a triangular block, two inclined blocks are arranged above the speed reducing motor, the inclined blocks are inclined blocks and are arranged in a mirror image mode, two vertical grooves are formed in the inner walls of the left side and the right side of the shell respectively, each vertical groove is a rectangular groove and penetrates through the upper wall surface of the shell, connecting blocks are fixedly mounted on the left side wall surface and the right side wall surface of each inclined block, the connecting blocks on the left side and the right side are clamped with the vertical grooves on the left side and the right side respectively, four rectangular blocks are fixedly mounted on the upper wall surface, the rectangular blocks are rectangular blocks, and connecting grooves are formed in one side wall surface, close to each other, the connecting groove is a circular groove, two rolling shafts are respectively arranged between the rectangular blocks at the left side and the right side, the rolling shafts are cylindrical blocks, traction ropes are fixedly arranged on the connecting blocks at the left side and the right side, the traction ropes are wound together with the rolling shafts, the connecting groove at the right side penetrates through the left side wall surface and the right side wall surface of the rectangular block at the right side, circular connecting blocks are respectively and fixedly arranged on the left side wall surface and the right side wall surface of the rolling shaft, the circular connecting blocks are movably connected with the connecting grooves, a speed reducing motor is respectively and fixedly arranged on the right side wall surfaces of the two rectangular blocks at the right side, a rotating shaft of the speed reducing motor is fixedly connected with the circular connecting block at the right side, when in use, after sewage in the waste water collecting tank is placed for a period of time, internal impurities can be precipitated at the bottom of the waste water collecting, then after the inside waste water discharge of shell finishes, start gear motor, then gear motor is rotatory, then the roller bearing is rotatory, draws in the haulage rope in, then two sloping blocks rebound, then clear up the mud on the sloping block, and such setting up is convenient clears up mud, is convenient for use next time.
The invention also provides a process method for treating the concentration of the desulfurization wastewater of the thermal power plant by adopting the electrolytic adsorption technology, which comprises the following steps of:
1) and after entering an original water tank for buffering, the treated desulfurization wastewater reaching the standard enters an electrochemical descaling system through a water inlet pump A, and a non-metal composite electrode is arranged in the electrochemical descaling system and connected with an external direct-current power supply. When the desulfurization wastewater flows through a low-voltage electric field formed by a positive electrode and a negative electrode, a large amount of OH < - > is generated near the negative plate to form a strong alkaline environment, cations such as calcium, magnesium and the like in water are attracted to the negative plate to migrate, and insoluble matters such as calcium carbonate, magnesium hydroxide and the like are generated and deposited on the negative electrode; the anode is oxidized to generate active hydroxyl free radical, chlorine and other substances. The electrochemical descaling system can control the pH value of effluent to be reduced below 7 by adjusting the current intensity.
2) When the electrochemical descaling system operates normally, the effluent is collected to an intermediate water tank A, then enters a quartz sand filter through a filter water feeding pump A to be filtered and then is discharged to an intermediate water tank B, one path of the effluent of the intermediate water tank B is connected to the quartz sand filter through a backwashing pump A to be used as backwashing water, and the other path of the effluent enters an electrolytic adsorption device through a water inlet pump B to be concentrated and reduced.
3) After the electrochemical descaling system operates for a period of time, indissolvable substances deposited on the cathode plate can influence the pH adjusting efficiency of the flowing water, and in order to recover the treatment capacity of the electrochemical descaling system, descaling treatment needs to be carried out regularly. When in descale, the inlet water is unchanged, only the anode and the cathode of the power supply are switched, and at the moment, the scaling substances on the surface of the cathode are removed into the flushing water to form cleaning wastewater which is discharged to the wastewater collecting tank.
4) The electrolytic adsorption device consists of a positive electrode, a negative electrode and a water flow channel and is externally connected with a direct current power supply. Ions with opposite charges in the solution are moved and adsorbed to the surface of the electrode under the action of the electric field, so that the ions in the desulfurization wastewater are removed, and the purposes of desalting and purifying are achieved. The electrolytic adsorption device is flexible to assemble, and can be arranged in multiple stages according to the requirement of effluent quality so as to achieve the designed desalination rate and recovery rate. Generally, the recovery rate of the electrolytic adsorption device is adjustable between 70% and 95%, and the desalination rate is adjustable between 40% and 90%.
5) The water produced by the electrolytic adsorption device is collected to a middle water tank C, and is sent to a manganese sand filter by a filter water feeding pump B to be filtered, and then is collected to a water production tank. One path of water discharged from the water production tank is recycled to the desulfurization process water tank through the water production pump, and the other path of water is discharged to the manganese sand filter through the backwashing pump B and is used as backwashing water.
6) With the extension of the operation time, the electrode adsorption capacity of the electrolytic adsorption device reaches saturation, the desalting capacity is lost, and the regeneration stage is started. During regeneration, the direct current power supply is cut off, reverse voltage is applied for a period of time, water is fed for backwashing, and at the moment, the charged particles are released into flushing water to form concentrated water and the concentrated water is discharged to a wastewater collection tank.
7) When the operation pressure difference or the effluent turbidity rises, backwashing is required to be carried out on the quartz sand filter and the manganese sand filter, and generated backwashing wastewater of the quartz sand filter and the generated backwashing wastewater of the manganese sand filter are discharged to a wastewater collection tank.
8) And the wastewater collected by the wastewater collection tank is completely discharged to a tail end solidification system through a wastewater lifting pump for solidification treatment.
(III) advantageous effects
Compared with the prior art, the invention provides a thermal power plant desulfurization wastewater electrolytic adsorption treatment system and a treatment method, which have the following beneficial effects:
1. by adopting an electrochemical descaling system, calcium and magnesium indissolvable substances can be deposited on the cathode of the electrochemical descaling system and then are discharged by electrode-reversing flushing, so that the electrochemical descaling system has a better descaling effect.
2. The electrolytic adsorption device is adopted to carry out concentration and decrement treatment on the desulfurization wastewater, and the operation cost and the control difficulty can be obviously reduced by only controlling the pH value and the turbidity of inlet water.
3. The quality of the effluent of the electrolytic adsorption device is similar to that of the desulfurization process water, and the effluent can be directly recycled to a desulfurization system, so that the process is more rapid.
4. The method can realize the concentration and decrement treatment of the desulfurization wastewater by combining the electrochemical descaling system and the electrolytic adsorption, does not need to add chemicals, has simple system and strong adaptability to water quality, and can control the recovery rate and the desalination rate of produced water by flexibly combining equipment.
5. Through having set up the waste water collecting pit, after the inside sewage of waste water collecting pit placed a period, inside impurity can deposit the bottom of waste water collecting pit, because two sloping blocks set up for the slope, so mud can pile up the contained angle department of both sides inner wall around two sloping blocks and shell, then the inside waste water discharge of shell finishes after, start gear motor, then gear motor is rotatory, then the roller bearing is rotatory, draw in the haulage rope in, then two sloping block rebound, then clear up the mud on the sloping block, such setting is convenient to clear up mud, be convenient for use next time.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic perspective view of a wastewater collection tank;
FIG. 3 is a schematic cross-sectional view of a wastewater collection tank;
fig. 4 is a side view of the housing.
In the figure: 1 raw water tank, 2 water inlet pumps A, 3 electrochemical descaling systems, 4 intermediate water tanks A, 5 filter water feeding pumps A, 6 quartz sand filters, 7 intermediate water tanks B, 8 water inlet pumps B, 9 backwashing pumps A, 10 electrolytic adsorption devices, 11 intermediate water tanks C, 12 filter water feeding pumps B, 13 manganese sand filters, 14 product water tanks, 15 product water pumps, 16 desulfurization process water tanks, 17 backwashing pumps B, 18 wastewater collection tanks, 19 wastewater lifting pumps, 20 tail end curing systems, 1801 shells, 1802 vertical grooves, 1803 rectangular blocks, 1804 rolling shafts, 1805 inclined blocks, 1806 speed reducing motors, 1807 connecting blocks, 1808 connecting grooves and 1809 circular connecting blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the system for electrolytic adsorption treatment of desulfurization wastewater of a thermal power plant according to the present invention includes an electrochemical descaling system 3, a quartz sand filter 6, an electrolytic adsorption device 10, a manganese sand filter 13, a desulfurization process water tank 16, and a terminal solidification system 20.
Referring to fig. 2-4, the desulfurization waste water reaching the standard enters a raw water tank 1, a water inlet of the raw water tank 1 is connected with a water inlet of an electrochemical descaling system 3 through a water inlet pump a2, a water outlet of the electrochemical descaling system 3 is connected with a water inlet of an intermediate water tank A4, cleaning waste water of the electrochemical descaling system is discharged to a waste water collecting tank 18, a water outlet of the intermediate water tank A4 is connected with a water inlet of a quartz sand filter 6 through a filter water feeding pump a5, a water outlet of the quartz sand filter 6 is connected with a water inlet of an intermediate water tank B7, backwashing waste water of the quartz sand filter is discharged to the waste water collecting tank 18, a water outlet of the intermediate water tank B7 is connected with a water inlet of an electrolytic adsorption device 10 through a water inlet pump B8, a water outlet of the intermediate water tank B7 is connected with a quartz sand filter 8 through a backwashing pump a, the middle water tank C11 is connected with the water inlet of the manganese sand filter 13 through a filter water feed pump B12, the water outlet of the manganese sand filter 13 is connected with the water inlet of the water production tank 14, the backwashing wastewater of the manganese sand filter is discharged to the wastewater collection tank 18, one path of the water outlet of the water production tank 14 is connected with the desulfurization process water tank 16 through the water production pump 15, and the other path is connected with the manganese sand filter 13 through the backwashing pump B17. The effluent from the wastewater collection tank 18 is connected to a terminal solidification system 25 via a wastewater lift pump 19.
The wastewater collection tank 18 comprises a housing 1801, the housing 1801 is a rectangular block, the interior of the housing 1801 is a hollow structure, the hollow part inside the housing 1801 penetrates through the upper part of the housing 1801, a speed reduction motor 1806 is fixedly mounted on the inner wall of the bottom of the housing 1801, the cross section of the speed reduction motor 1806 is a triangular block, two inclined blocks 1805 are arranged above the speed reduction motor 1806, the inclined blocks 1805 are inclined blocks and are arranged in a mirror image manner, two vertical grooves 1802 are respectively formed in the inner walls of the left side and the right side of the housing 1801, the vertical grooves 1802 are rectangular grooves, the vertical grooves 1802 penetrate through the upper wall surface of the housing 1801, connecting blocks 1807 are fixedly mounted on the left side wall surface and the right side wall surface of the inclined blocks 1805, the connecting blocks 1807 of the left side and the right side are respectively clamped with the vertical grooves 1802 in the left side and the right side, four rectangular blocks 1803 are fixedly mounted on the upper wall surface of the housing, the rectangular block 1803 is a rectangular block, a connecting groove 1808 is respectively arranged on one side wall surface of the left and right rectangular blocks 1803 which are close to each other, the connecting groove 1808 is a circular groove, two rollers 1804 are respectively arranged between the left and right rectangular blocks 1803, the rollers 1804 are cylindrical blocks, traction ropes are fixedly arranged on the connecting blocks 1807 on the left and right sides, the traction ropes are wound with the rollers 1804, the connecting groove 1808 on the right side penetrates through the left and right side wall surfaces of the right rectangular block 1803, circular connecting blocks 1809 are respectively and fixedly arranged on the left and right side wall surfaces of the rollers 1804, the circular connecting blocks 1809 are movably connected with the connecting groove 1808, a speed reducing motor 1806 is respectively and fixedly arranged on the right side wall surface of the two rectangular blocks 1803 on the right side, the rotating shaft of the speed reducing motor 1806 is fixedly connected with the circular connecting block 1809 on the right side, after a period of time is placed to the inside sewage of waste water collecting tank 18, inside impurity can deposit the bottom of waste water collecting tank 18, because two sloping block 1805 set up for the slope, so mud can pile up the contained angle department of both sides inner wall around two sloping block 1805 and shell 1801, then after the inside waste water discharge of shell 1801 finishes, start gear motor 1806, then gear motor 1806 is rotatory, then roller 1804 is rotatory, draw in the haulage rope, then two sloping block 1805 rebound, then clear up the mud on the sloping block 1805, such setting up is convenient to clear up mud, be convenient for use next time.
The invention provides a process method for treating desulfurization wastewater of a thermal power plant by adopting an electrolytic adsorption technology, which comprises the following steps of:
1) firstly, the desulfurization wastewater after reaching the standard is discharged to an original water tank 1 for buffering, the wastewater enters an electrochemical descaling system 3 after being buffered to adjust the pH value to be below 7, and the effluent is collected to an intermediate water tank A4 and then enters a quartz sand filter 6 for filtering, so that suspended matters are further removed, and the turbidity is reduced.
2) The effluent of the quartz sand filter 6 is collected into an intermediate water tank B, and one path of the effluent is discharged to an electrolytic adsorption device 10 for concentration and decrement treatment. The electrolytic adsorption device realizes the separation of salt and water by utilizing the adsorption effect of positive and negative plates on particles with opposite charges in water, wherein ions adsorbed on the positive plate comprise Cl-, SO42-, NO3-, HCO 3-and the like, and ions adsorbed on the negative plate comprise Na +, K +, Ca2+, Mg2+ and the like, SO that the indexes of Cl-, conductivity, salt content and the like of water produced by the electrolytic adsorption device are obviously reduced.
3) The produced water of the electrolytic adsorption device 10 is collected to a middle water tank C11, and then is discharged to a manganese sand filter 13 for filtering, the produced water of the manganese sand filter is collected to a produced water tank 14, and the effluent of the produced water tank is recycled to a desulfurization process water tank 16.
4) Along with the extension of the running time, the electrochemical descaling system 3 needs to carry out descaling treatment by electrode reversing and uses the original water tank to wash water, at the moment, the scale substances removed from the surface of the cathode are discharged along with the washing water, and the generated cleaning wastewater of the electrochemical descaling system is discharged to a wastewater collection tank 18.
5) After the electrodes of the electrolytic adsorption device 10 are saturated, the electrodes are regenerated by applying reverse voltage, and the water is flushed from the intermediate water tank B7, at this time, the charged particles adsorbed by the positive and negative plates are released into the flushing water, and concentrated water is discharged to the wastewater collection tank 18.
6) When the quartz sand filter 6 and the manganese sand filter 13 are backwashed, the produced backwash wastewater is also discharged to the wastewater collection tank 18.
7) The wastewater collected by the wastewater collection basin 18 is finally discharged to an end curing system 20 for curing treatment.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a desulfurization waste water electrolytic adsorption processing system of thermal power plant, includes electrochemistry scale removal system (3), quartz sand filter (6), electrolytic adsorption device (10), manganese sand filter (13), desulfurization process water tank (16), terminal curing system (20), its characterized in that: the desulfurization waste water reaching the standard after treatment enters a raw water tank (1), the water inlet of the raw water tank (1) is connected with the water inlet of an electrochemical descaling system (3) through a water inlet pump A (2), the water outlet of the electrochemical descaling system (3) is connected with the water inlet of an intermediate water tank A (4), the cleaning waste water of the electrochemical descaling system is discharged to a waste water collecting tank (18), the water outlet of the intermediate water tank A (4) is connected with the water inlet of a quartz sand filter (6) through a filter water feeding pump A (5), the water outlet of the quartz sand filter (6) is connected with the water inlet of an intermediate water tank B (7), the backwashing waste water of the quartz sand filter is discharged to the waste water collecting tank (18), the water outlet of the intermediate water tank B (7) is connected with the water inlet of an electrolytic adsorption device (10) through a water inlet pump B (8), the water outlet of the, the water outlet of the electrolytic adsorption device (10) is connected with the water inlet of the middle water tank C (11), the concentrated water of the electrolytic adsorption device is discharged to the wastewater collection tank (18), the middle water tank C (11) is connected with the water inlet of the manganese sand filter (13) through the water feed pump B (12) of the filter, the water outlet of the manganese sand filter (13) is connected with the water inlet of the produced water tank (14), the backwashing wastewater of the manganese sand filter is discharged to the wastewater collection tank (18), the water outlet of the produced water tank (14) is connected with the desulfurization process water tank (16) through the produced water pump (15), the water outlet of the produced water tank is connected with the manganese sand filter (13) through the backwashing pump B (17), and the water outlet of the wastewater collection tank (18) is connected with the terminal solidification.
2. The thermal power plant desulfurization wastewater electrolytic adsorption treatment system according to claim 1, comprising: the wastewater collection tank (18) comprises a shell (1801), the shell (1801) is a rectangular block, the interior of the shell (1801) is of a hollow structure, the hollow part of the interior of the shell (1801) penetrates through the upper part of the shell (1801), a speed reduction motor (1806) is fixedly mounted on the inner wall of the bottom of the shell (1801), and the cross section of the speed reduction motor (1806) is a triangular block;
the top of gear motor (1806) is provided with two sloping blocks (1805), sloping block (1805) is the piece of slope, and two sloping block (1805) mirror image settings, two perpendicular grooves (1802) have been seted up on the left and right sides inner wall of shell (1801) respectively, perpendicular groove (1802) are the groove of rectangle, and perpendicular groove (1802) have run through the top wall of shell (1801), equal fixed mounting has connecting block (1807) on the left and right sides wall face of sloping block (1805), and connecting block (1807) of the left and right sides respectively with the perpendicular groove (1802) card of the left and right sides be in the same place, the top wall fixed mounting of (1) has four rectangular blocks (1803).
3. The thermal power plant desulfurization wastewater electrolytic adsorption treatment system according to claim 2, characterized in that: the rectangular blocks (1803) are rectangular blocks, connecting grooves (1808) are formed in one side wall face, close to each other, of the rectangular blocks (1803) on the left side and the right side, the connecting grooves (1808) are circular grooves, two rolling shafts (1804) are arranged between the rectangular blocks (1803) on the left side and the right side respectively, the rolling shafts (1804) are cylindrical blocks, traction ropes are fixedly mounted on the connecting blocks (1807) on the left side and the right side, the traction ropes are wound with the rolling shafts (1804) together, and the connecting grooves (1808) on the right side penetrate through the left side wall face and the right side wall face of the rectangular blocks (1803) on the right side;
the utility model discloses a rolling bearing, including roller bearing (1804), fixed mounting has circular connecting block (1809) on the left and right sides wall face of roller bearing (1804) respectively, circular connecting block (1809) and spread groove (1808) swing joint are in the same place, and fixed mounting has gear motor (1806) on the right side wall face of two rectangular blocks on right side (1803) respectively, the pivot of gear motor (1806) is in the same place with circular connecting block (1809) fixed connection on right side.
4. A process method for treating system concentration of thermal power plant desulfurization wastewater by adopting an electrolytic adsorption technology is characterized by comprising the following steps of: the method comprises the following steps:
1) firstly, discharging the treated desulfurization wastewater reaching the standard to a raw water tank (1) for buffering, then feeding the buffered desulfurization wastewater into an electrochemical descaling system (3) to adjust the pH value to be below 7, collecting the effluent to an intermediate water tank A (4), and then feeding the effluent into a quartz sand filter (6) for filtering, further removing suspended matters and reducing turbidity;
2) the effluent of the quartz sand filter (6) is collected to a middle water tank B, one path of the effluent is discharged to an electrolytic adsorption device (10) for concentration and decrement treatment, the electrolytic adsorption device realizes the separation of salt and water by utilizing the adsorption effect of positive and negative plates on particles with opposite charges in the water, wherein ions adsorbed on the positive plate comprise Cl-, SO42-, NO3-, HCO 3-and the like, and ions adsorbed on the negative plate comprise Na +, K +, Ca2+, Mg2+ and the like, SO that the indexes of water produced by the electrolytic adsorption device, such as Cl-, conductivity, salt content and the like, are obviously reduced;
3) collecting the produced water of the electrolytic adsorption device (10) to an intermediate water tank C (11), then discharging to a manganese sand filter (13) for filtering, collecting the produced water of the manganese sand filter to a water production tank (14), and recycling the effluent of the water production tank to a desulfurization process water tank (16);
4) along with the extension of the running time, the electrochemical descaling system (3) needs to carry out descaling treatment by electrode reversing, and is flushed by water from an original water tank, at the moment, the scale substances removed from the surface of the cathode are discharged along with flushing water, and the generated cleaning wastewater of the electrochemical descaling system is discharged to a wastewater collection pool (18);
5) after the electrodes of the electrolytic adsorption device (10) are adsorbed to saturation, reverse voltage is applied to regenerate the electrodes, the electrodes are flushed by water from the middle water tank B (7), and at the moment, charged particles adsorbed by the positive and negative plates are released into the flushing water to form concentrated water which is discharged to a waste water collecting tank (18);
6) when the quartz sand filter (6) and the manganese sand filter (13) carry out backwashing, generated backwashing wastewater is also discharged to a wastewater collection tank (18);
7) the wastewater collected by the wastewater collection tank (18) is finally discharged to an end solidification system (20) for solidification treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010123748.6A CN111302540A (en) | 2020-02-27 | 2020-02-27 | Thermal power plant desulfurization wastewater electrolytic adsorption treatment system and treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010123748.6A CN111302540A (en) | 2020-02-27 | 2020-02-27 | Thermal power plant desulfurization wastewater electrolytic adsorption treatment system and treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111302540A true CN111302540A (en) | 2020-06-19 |
Family
ID=71151547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010123748.6A Pending CN111302540A (en) | 2020-02-27 | 2020-02-27 | Thermal power plant desulfurization wastewater electrolytic adsorption treatment system and treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111302540A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113429036A (en) * | 2021-07-08 | 2021-09-24 | 张韦欣 | Variable-voltage electro-adsorption softening concentration technology |
| CN113548759A (en) * | 2021-08-02 | 2021-10-26 | 张韦欣 | Flocculation type electric adsorption softening and concentrating device |
| WO2021223369A1 (en) * | 2020-05-07 | 2021-11-11 | 西安西热水务环保有限公司 | Chemical-free electric method combined treatment process system and method for circulating water of thermal power plant |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140115259A (en) * | 2013-03-20 | 2014-09-30 | 코웨이 주식회사 | Electro deionization-type water treatment apparatus |
| US20160115061A1 (en) * | 2013-07-05 | 2016-04-28 | Mitsubishi Heavy Industries, Ltd. | Water treatment system, water treatment method, cooling facility and power generating facility |
| CN105621819A (en) * | 2016-04-01 | 2016-06-01 | 湖南艾布鲁环保科技有限公司 | Heavy metal tailing pond leachate multielement combination ecological treatment system and method |
| CN207608433U (en) * | 2017-09-13 | 2018-07-13 | 北京国能中电节能环保技术股份有限公司 | A kind of desulfurization wastewater Zero emission device based on novel concentration technique |
| CN207760203U (en) * | 2017-12-28 | 2018-08-24 | 厦门市绿得清新材料科技有限公司 | Integral domestic sewage treatment device |
| CN110054263A (en) * | 2019-05-27 | 2019-07-26 | 中国华能集团清洁能源技术研究院有限公司 | A kind of multistage electro-chemical water processing system and method |
| CN209397045U (en) * | 2018-12-12 | 2019-09-17 | 环境保护部南京环境科学研究所 | A kind of integration filter Electro Sorb water treatment facilities |
| CN110357310A (en) * | 2019-07-31 | 2019-10-22 | 武汉钢铁有限公司 | A method of processing steel industry recirculating water blowdown water Electro Sorb concentrated water |
| CN211999241U (en) * | 2020-02-27 | 2020-11-24 | 河北铄宇环保科技股份有限公司 | Desulfurization waste water electrolysis of thermal power plant adsorbs processing system |
-
2020
- 2020-02-27 CN CN202010123748.6A patent/CN111302540A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140115259A (en) * | 2013-03-20 | 2014-09-30 | 코웨이 주식회사 | Electro deionization-type water treatment apparatus |
| US20160115061A1 (en) * | 2013-07-05 | 2016-04-28 | Mitsubishi Heavy Industries, Ltd. | Water treatment system, water treatment method, cooling facility and power generating facility |
| CN105621819A (en) * | 2016-04-01 | 2016-06-01 | 湖南艾布鲁环保科技有限公司 | Heavy metal tailing pond leachate multielement combination ecological treatment system and method |
| CN207608433U (en) * | 2017-09-13 | 2018-07-13 | 北京国能中电节能环保技术股份有限公司 | A kind of desulfurization wastewater Zero emission device based on novel concentration technique |
| CN207760203U (en) * | 2017-12-28 | 2018-08-24 | 厦门市绿得清新材料科技有限公司 | Integral domestic sewage treatment device |
| CN209397045U (en) * | 2018-12-12 | 2019-09-17 | 环境保护部南京环境科学研究所 | A kind of integration filter Electro Sorb water treatment facilities |
| CN110054263A (en) * | 2019-05-27 | 2019-07-26 | 中国华能集团清洁能源技术研究院有限公司 | A kind of multistage electro-chemical water processing system and method |
| CN110357310A (en) * | 2019-07-31 | 2019-10-22 | 武汉钢铁有限公司 | A method of processing steel industry recirculating water blowdown water Electro Sorb concentrated water |
| CN211999241U (en) * | 2020-02-27 | 2020-11-24 | 河北铄宇环保科技股份有限公司 | Desulfurization waste water electrolysis of thermal power plant adsorbs processing system |
Non-Patent Citations (1)
| Title |
|---|
| 黄伟等: "《好水喝出健康来 健康的电解还原水》", 31 January 2014, 华南理工大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021223369A1 (en) * | 2020-05-07 | 2021-11-11 | 西安西热水务环保有限公司 | Chemical-free electric method combined treatment process system and method for circulating water of thermal power plant |
| CN113429036A (en) * | 2021-07-08 | 2021-09-24 | 张韦欣 | Variable-voltage electro-adsorption softening concentration technology |
| CN113548759A (en) * | 2021-08-02 | 2021-10-26 | 张韦欣 | Flocculation type electric adsorption softening and concentrating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111302540A (en) | Thermal power plant desulfurization wastewater electrolytic adsorption treatment system and treatment method | |
| CN108383315B (en) | Multistage electrically driven ionic membrane's waste water recovery device | |
| CN110143774B (en) | Sea sand purification system | |
| WO2021223369A1 (en) | Chemical-free electric method combined treatment process system and method for circulating water of thermal power plant | |
| CN105174580A (en) | Desulphurization waste-water zero discharge processing system and technology | |
| CN108046448B (en) | Underground mine water treatment system and treatment method | |
| CN201206108Y (en) | Electro-adsorption desalination system for sewage advanced treatment | |
| CN104118956A (en) | Method for treating sewage | |
| CN103466844A (en) | Process and device for processing and recycling leaded wastewater | |
| CN206266392U (en) | A kind of papermaking wastewater zero-discharge treatment system | |
| CN210528679U (en) | Mine water resourceful treatment recycling system | |
| CN204281479U (en) | A kind for the treatment of system of coating wastewater | |
| CN202865053U (en) | Processing device for wastewater form circulating cooling water and reverse osmosis concentrated water | |
| CN211999241U (en) | Desulfurization waste water electrolysis of thermal power plant adsorbs processing system | |
| CN107381889A (en) | A kind of circulating water treatment method | |
| CN104118947A (en) | Antibiotic wastewater advanced treatment and reuse method | |
| CN212127837U (en) | Chemical-free electric method combined treatment process system for circulating water of thermal power plant | |
| CN204897590U (en) | Desulfurization waste water zero release processing system | |
| CN201400615Y (en) | Treatment system of wastewater from circulating water | |
| CN212954669U (en) | Multi-stage filtration water purification system and water purifier | |
| CN104909505B (en) | Treatment system applied to industrial desalination | |
| CN211546262U (en) | Pretreatment cleaning wastewater treatment system | |
| CN210237343U (en) | Biochemical effluent treatment system | |
| CN2778793Y (en) | Sewage treating plant with micro-electricity coagulate barrier separation | |
| JPH06134220A (en) | Solid-liquid separation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200619 |
|
| RJ01 | Rejection of invention patent application after publication |