CN109467205B - High-concentration organic wastewater treatment system - Google Patents
High-concentration organic wastewater treatment system Download PDFInfo
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- CN109467205B CN109467205B CN201811559149.8A CN201811559149A CN109467205B CN 109467205 B CN109467205 B CN 109467205B CN 201811559149 A CN201811559149 A CN 201811559149A CN 109467205 B CN109467205 B CN 109467205B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Abstract
The invention discloses a high-concentration organic wastewater treatment system, which comprises a dilution pool, a pre-adsorption device, a main pipeline, a storage pool, a pump body and an adsorption tank, wherein an overflow pipe is connected to the outer wall of the dilution pool and matched with the pre-adsorption device, the main pipeline is buried in the ground, wastewater passing through the pre-adsorption device enters the main pipeline, one end of the main pipeline is closed, the other end of the main pipeline is communicated with the storage pool, the pump body is connected with a water pumping pipe and a water delivery pipe, the water pumping pipe extends into the storage pool, and the end of the water delivery pipe, which is far away from the pump body, is butted with the adsorption tank; in this system, the accessible coal cinder carries out the preliminary treatment to organic waste water, reduces the COD content in the organic waste water, and the end then adopts the active carbon to filter, because organic waste water passes through the preliminary treatment for the COD content reduces, consequently can prolong the active carbon can the live time, reduces and filters the cost, and the coal cinder can be made into the coalball or be used for the industrial combustion after the absorption is accomplished.
Description
Technical Field
The invention relates to a high-concentration organic wastewater treatment system.
Background
With the rapid development of industry, the variety and quantity of waste water are rapidly increased, the pollution to water is becoming wide and serious, and the health and safety of human beings are threatened. Since the composition of industrial waste water is more complex and some are toxic, it is more difficult and important to treat industrial waste water than to treat municipal sewage.
The high-concentration organic wastewater mainly has the following characteristics:
one is high organic concentration. COD is generally above 2000mg/L, some is even as high as tens of thousands or even hundreds of thousands mg/L, relatively speaking, BOD is lower, and the ratio of BOD to COD of a lot of waste water is less than 0.3.
Secondly, the components are complex. The organic matters in the waste water containing toxic substances are aromatic compounds and heterocyclic compounds, and also contain sulfides, nitrides, heavy metals and toxic organic matters.
Thirdly, the color is high and the odor is generated. Some waste water emits pungent and foul odor, which causes adverse effects on the surrounding environment.
Fourthly, the catalyst has strong acidity and basicity.
In the traditional technology, active carbon is mainly used for adsorption, but the active carbon has a short service cycle and needs to be replaced frequently, so that the use cost is relatively high.
In view of the above, there is a need to provide a high concentration organic wastewater treatment system that is more cost effective than single activated carbon filtration.
Disclosure of Invention
The invention aims to solve the technical problem of providing a high-concentration organic wastewater treatment system which is more cost-saving than single activated carbon filtration.
The invention is realized by the following technical scheme:
the utility model provides a high concentration organic wastewater treatment system, includes dilution pond, adsorption equipment, main line in advance, storage pool, the pump body and adsorption tank, the waste water that gets into organic waste water usefulness is installed to one side of dilution pond and is advanced the pipe, and the opposite side is installed the intake that gets into the clear water usefulness and is advanced the pipe, the outer wall department of dilution pond is connected with the warning pipe, this warning pipe cooperation adsorption equipment in advance, the main line is buried underground in the ground, and the waste water that passes adsorption equipment in advance gets into to the main line in, the one end of main line is sealed, and the other end intercommunication the storage pool, the pump body is connected with drinking-water pipe and delivery pipe, the drinking-water pipe extends to in the storage pool, the delivery pipe is kept away from that one end butt joint of the pump body the adsorption tank, the adsorption tank is kept away from that one end welding of delivery pipe has the outlet pipe.
Preferably, the waste water inlet pipe and the clear water inlet pipe are coaxially arranged, and the distance between the waste water inlet pipe and the clear water inlet pipe is less than 60 cm.
Preferably, the pre-adsorption device comprises a plurality of tank bodies, a plurality of communicating pipes are welded on the outer wall of each tank body, the adjacent tank bodies are communicated through the communicating pipes, a flange is matched between the two communicating pipes which are in butt joint, a tank cover is detachably matched at the bottom of each tank body, a first flange is assembled between each tank body and the corresponding tank cover, a convex ring is welded on the inner wall of each tank body, an inner tank body is supported through the convex ring, a small-diameter part is arranged at the upper end of the inner tank body, the communicating pipes are arranged at positions close to the top of the tank bodies, the communicating pipes are opposite to the small-diameter parts, a conical surface is transited between the small-diameter parts and the inner tank body, water inlet holes are uniformly distributed on the conical surface, water outlet holes are uniformly distributed at the bottom of the inner tank body, and coal blocks are filled in the inner tank body, a delivery pipe is welded at the bottom of the tank cover, a water collecting pipe is arranged below the tank bodies in the same row, two ends of the water collecting pipe are closed, a second flange is assembled between the water collecting pipe and the delivery pipe, the lower end of the water collecting pipe is welded and communicated with the main pipeline, a supporting leg is welded at the outer wall of each tank body, the supporting legs are fixed with the ground through screws, and the overflow pipe is communicated with one of the tank bodies; the inner tank body can be lifted by the hoisting cable, so that the inner coal briquette can be conveniently replaced.
Preferably, an open cup is welded to the upper end of the tank body.
Preferably, the outer wall of the small-diameter part is provided with two suspension grooves for matching with a suspension cable.
Preferably, a first overflow pipe is assembled between the storage tank and the dilution tank, and when the amount of water entering the storage tank at the main water pipe is too much, so that the pump body cannot be pumped out, the water which is about to overflow from the storage tank flows back into the dilution tank again through the first overflow pipe, and the height of the first overflow pipe is higher than that of the overflow pipe.
Preferably, the adsorption tank includes the first jar of body and first cover, the first jar of body with be equipped with the third flange between the first cover, water pipe welded connection the first jar of body is kept away from that one end of first cover, the outlet pipe welding is in first cover is kept away from that one end of the first jar of body the welding has a baffle in the first cover the equipartition has 1 ~ 2 mm's aperture on the face of baffle the intussuseption of the first jar of body is filled with active carbon.
The preparation method of the activated carbon comprises the following steps:
(1) cleaning fresh corn stalks, drying at 90-100 ℃ to constant weight, crushing, and sieving by a sieve with 10-100 meshes to obtain corn stalk powder;
(2) mixing corn straw powder and an activating agent according to a solid-to-liquid ratio of 1 g: (5-10) mL, stirring at 40-60 ℃ for 10-20 minutes at 60-100 rpm, standing at 20-30 ℃ for 4-8 hours, and filtering to obtain a solid serving as a carbonization raw material;
(3) putting the carbonized raw material into a tubular furnace, heating to 450-550 ℃ at a rate of 8-12 ℃/min under the protection of nitrogen, preserving the heat at 450-550 ℃ for 60-90 minutes, cooling to room temperature to obtain a primary carbonized material, wherein the solid-to-liquid ratio of the primary carbonized material to the catalyst solution is 1 g: (0.02-0.2) mL, stirring for 20-40 minutes at 40-100 rpm to obtain a mixture, placing the mixture into a tubular furnace, heating to 750 ℃ at 8-12 ℃/min under the protection of nitrogen, preserving the heat at 750 ℃ of 550 ℃ for 60-90 minutes, and cooling to room temperature to obtain a secondary carbonized material;
(4) mixing the secondary carbonized material and ethanol according to a solid-to-liquid ratio of 1 g: (5-10) mL, stirring for 10-20 minutes at 60-100 rpm, filtering, keeping the filter cake in water at 95-100 ℃ for 5-10 minutes, filtering, and drying the obtained solid at 90-100 ℃ to constant weight to obtain the activated carbon.
Preferably, the preparation method of the activated carbon comprises the following steps:
(1) cleaning fresh corn stalks, drying at 90-100 ℃ to constant weight, crushing, and sieving by a sieve with 10-100 meshes to obtain corn stalk powder;
(2) mixing corn straw powder and 1-3mol/L hydrochloric acid according to a solid-liquid ratio of 1 g: (5-10) mL, stirring at 40-60 ℃ for 10-20 minutes at 60-100 rpm, performing ultrasonic treatment at 40-60 ℃ for 20-40 minutes, filtering, washing with water until the pH value of washing liquor is neutral, and drying at 90-100 ℃ to constant weight to obtain pretreated corn straw powder;
(3) mixing the pretreated corn straw powder and an activating agent according to a solid-to-liquid ratio of 1 g: (5-10) mL, stirring at 40-60 ℃ for 10-20 minutes at 60-100 rpm, standing at 20-30 ℃ for 4-8 hours, and filtering to obtain a solid serving as a carbonization raw material;
(4) putting the carbonized raw material into a tubular furnace, heating to 450-550 ℃ at a rate of 8-12 ℃/min under the protection of nitrogen, preserving the heat at 450-550 ℃ for 60-90 minutes, cooling to room temperature to obtain a primary carbonized material, wherein the solid-to-liquid ratio of the primary carbonized material to the catalyst solution is 1 g: (0.02-0.2) mL, stirring for 20-40 minutes at 40-100 rpm to obtain a mixture, placing the mixture into a tubular furnace, heating to 750 ℃ at 8-12 ℃/min under the protection of nitrogen, preserving the heat at 750 ℃ of 550 ℃ for 60-90 minutes, and cooling to room temperature to obtain a secondary carbonized material;
(5) mixing the secondary carbonized material and ethanol according to a solid-to-liquid ratio of 1 g: mixing 8mL of the mixture, stirring the mixture for 15 minutes at a speed of 80 rpm, filtering the mixture by using 300-mesh filter cloth, preserving the heat of a filter cake in 98 ℃ water for 8 minutes, filtering the mixture by using 300-mesh filter cloth, and drying the obtained solid to constant weight at 95 ℃ to obtain the activated carbon.
The activating agent comprises the following raw materials in parts by weight: 15-25 parts of potassium hydroxide, 10-20 parts of sodium carbonate, 1-3 parts of pore-expanding agent and 60-100 parts of water. Weighing the raw materials according to the parts by weight, adding the raw materials into water, and stirring for 10-20 minutes at the speed of 100-300 revolutions per minute to obtain the activating agent.
The catalyst solution is prepared by the following method: mixing 0.1-1 weight part of catalyst and 99-100 weight parts of water, and stirring for 10-20 minutes at 100-300 rpm.
The catalyst is nickel sulfate and/or cerium sulfate.
Preferably, the catalyst is a mixture of nickel sulfate and cerium sulfate, wherein the mass ratio of the nickel sulfate to the cerium sulfate is (1-5): (1-5).
The pore-expanding agent is triethanolamine and/or meglumine.
Preferably, the pore-expanding agent is a mixture of triethanolamine and meglumine, wherein the mass ratio of the triethanolamine to the meglumine is (1-5): 1.
The organic wastewater treatment method of the product comprises the following steps:
diluting the organic wastewater through a dilution tank, wherein the dilution ratio is 1: 3, namely, 3 tons of organic wastewater are input and mixed with 3 tons of clear water, because the wastewater inlet pipe and the clear water inlet pipe are coaxially arranged, therefore, when the wastewater and the clean water enter, the wastewater and the clean water collide together to achieve a physical mixing effect, the mixing effect is better, special mixing equipment is not required to be added, the cost is reduced, the diluted wastewater overflows into the pre-adsorption device through the overflow pipe after being accumulated in the dilution tank, the coal blocks are pre-adsorbed, the coal blocks can be dried in the sun after adsorbing harmful substances, and then are burnt after being dried in the sun, so that the effect of waste utilization is achieved, after the coal blocks are adsorbed, the chroma and COD in the organic wastewater are greatly reduced, the reduced organic wastewater is pumped into an adsorption tank and finally adsorbed by the active carbon in the adsorption tank to purify the organic wastewater, therefore, after the coal briquette is pretreated, harmful substances in the organic wastewater are reduced, and the service life of the activated carbon is prolonged.
The invention has the beneficial effects that: in this system, the accessible coal cinder carries out the preliminary treatment to organic waste water, reduces the COD content in the organic waste water, and the end then adopts the active carbon to filter, because organic waste water passes through the preliminary treatment for the COD content reduces, consequently can prolong the active carbon can the live time, reduces the filtration cost, and the coal cinder is after the absorption is accomplished, can be made into the coalball or be used for the industry burning, and the filtration cost of this product adopts single active carbon to filter relatively, and the filtration cost is lower.
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 is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic diagram of the pre-adsorption device and the main pipeline;
FIG. 3 is a cross-sectional view of a can body;
FIG. 4 is a schematic view of the internal structure of the canister;
fig. 5 is a side view of a separator plate.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Nickel sulfate, CAS number: 7786-81-4, from Shanghai Michelin Biotechnology, Inc., product number: and N832222.
Cerium sulfate, CAS number: 13590-82-4, purchased from Shanghai future industry Co., Ltd, product number: F17156.
triethanolamine, CAS No.: 102-71-6, available from makelin biochemical technologies, inc, shanghai, under product number: t819270.
Meglumine, CAS number: 6284-40-8, available from Shanghai Michelin Biotechnology, Inc., product number: and M813277.
Example 1
As shown in fig. 1 to 5, the high concentration organic wastewater treatment system comprises a dilution tank 1, a pre-adsorption device 2, a main pipeline 3, a storage tank 4, a pump body 5 and an adsorption tank 6, a waste water inlet pipe 101 for entering organic waste water is arranged at one side of the dilution tank 1, a water inlet pipe 102 for entering clear water is arranged at the other side of the dilution tank 1, an overflow pipe 103 is connected at the outer wall of the dilution tank 1, the overflow pipe 103 is matched with the pre-adsorption device 2, the main pipeline 3 is buried in the ground, the waste water passing through the pre-adsorption device 2 enters the main pipeline 3, one end of the main pipeline 3 is closed, the other end is communicated with the storage pool 4, the pump body 5 is connected with a water pumping pipe 501 and a water delivery pipe 502, the water pumping pipe 501 extends into the storage pool 4, the end of the water delivery pipe 502 far away from the pump body 5 is butted with the adsorption tank 6, a water outlet pipe 888 is welded at the end of the adsorption tank 6 far away from the water feeding pipe 502.
In a preferred embodiment of the present invention, the waste water inlet pipe 101 and the clean water inlet pipe 102 are coaxially disposed, and the distance between the waste water inlet pipe 101 and the clean water inlet pipe 102 is 40 cm.
In a preferred embodiment of the present invention, the pre-adsorption device 2 includes a plurality of tank bodies 201, a plurality of communication pipes 202 are welded to an outer wall of each tank body 201, adjacent tank bodies 201 are communicated with each other through the communication pipes 202, a flange 203 is fitted between two communication pipes 202 that are connected to each other, a tank cover 204 is detachably fitted to a bottom of each tank body 201, a first flange 211 is fitted between each tank body 201 and the tank cover 204, a convex ring 205 is welded to an inner wall of each tank body 201, an inner tank body 206 is supported by the convex ring 205, a small pipe diameter portion 207 is provided at an upper end of the inner tank body 206, the communication pipes 202 are disposed near a top of the tank bodies 201, the communication pipes 202 are opposite to the small pipe diameter portion 207, a conical surface 208 is transitionally provided between the small pipe diameter portion 207 and the inner tank body 206, and water inlet holes 209 are uniformly distributed on the conical surface 208, water outlet holes 210 are uniformly distributed at the bottom of the inner tank body 206, coal briquettes (not shown) are filled in the inner tank body 206, a delivery pipe 212 is welded at the bottom of the tank cover 204, a water collecting pipe 7 is arranged below the tank bodies 201 in the same row, two ends of the water collecting pipe 7 are sealed, a second flange 701 is assembled between the water collecting pipe 7 and the delivery pipe 212, the lower end of the water collecting pipe 7 is welded and communicated with the main pipeline 3, supporting legs 213 are welded at the outer wall of each tank body 201, the supporting legs 213 are fixed with the ground through screws, and the overflow pipe 103 is communicated with one of the tank bodies 201; the inner tank 206 can be lifted by a suspension cable, so that the inner coal briquette can be replaced conveniently.
In a preferred embodiment of the present invention, an open cup 221 is welded to the upper end of the tank 201.
In a preferred embodiment of the present invention, the outer wall of the small-diameter portion 207 is provided with two suspension slots 222 for accommodating suspension cables.
In a preferred embodiment of the present invention, a first overflow pipe 444 is installed between the reservoir 4 and the dilution pool 1, and when the amount of water entering the reservoir at the main water pipe is too large, and the pump cannot be pumped out, the water that will overflow the reservoir will flow back into the dilution pool through the first overflow pipe, and the height of the first overflow pipe is higher than that of the overflow pipe.
In a preferred embodiment of the present invention, the adsorption tank 6 includes a first tank body 601 and a first tank cover 602, a third flange 611 is assembled between the first tank body 601 and the first tank cover 602, the water supply pipe is welded to the end of the first tank body 601 far away from the first tank cover 602, the water outlet pipe is welded to the end of the first tank cover 602 far away from the first tank body 601, a partition 603 is welded in the first tank cover 602, small holes 604 with 2mm are uniformly distributed on the surface of the partition 603, and activated carbon 605 is filled in the first tank body 601.
The organic wastewater treatment method of the product comprises the following steps:
diluting the organic wastewater through a dilution tank, wherein the dilution ratio is 1: 3, namely, 3 tons of organic wastewater are input and mixed with 3 tons of clear water, because the wastewater inlet pipe and the clear water inlet pipe are coaxially arranged, therefore, when the wastewater and the clean water enter, the wastewater and the clean water collide together to achieve a physical mixing effect, the mixing effect is better, special mixing equipment is not required to be added, the cost is reduced, the diluted wastewater overflows into the pre-adsorption device through the overflow pipe after being accumulated in the dilution tank, the coal blocks are pre-adsorbed, the coal blocks can be dried in the sun after adsorbing harmful substances, and then are burnt after being dried in the sun, so that the effect of waste utilization is achieved, after the coal blocks are adsorbed, the chroma and COD in the organic wastewater are greatly reduced, the reduced organic wastewater is pumped into an adsorption tank and finally adsorbed by the active carbon in the adsorption tank to purify the organic wastewater, therefore, after the coal briquette is pretreated, harmful substances in the organic wastewater are reduced, and the service life of the activated carbon is prolonged.
The invention has the beneficial effects that: in this system, the accessible coal cinder carries out the preliminary treatment to organic waste water, reduces the COD content in the organic waste water, and the end then adopts the active carbon to filter, because organic waste water passes through the preliminary treatment for the COD content reduces, consequently can prolong the active carbon can the live time, reduces the filtration cost, and the coal cinder is after the absorption is accomplished, can be made into the coalball or be used for the industry burning, and the filtration cost of this product adopts single active carbon to filter relatively, and the filtration cost is lower.
Example 2
As shown in fig. 1 to 5, the high concentration organic wastewater treatment system comprises a dilution tank 1, a pre-adsorption device 2, a main pipeline 3, a storage tank 4, a pump body 5 and an adsorption tank 6, a waste water inlet pipe 101 for entering organic waste water is arranged at one side of the dilution tank 1, a water inlet pipe 102 for entering clear water is arranged at the other side of the dilution tank 1, an overflow pipe 103 is connected at the outer wall of the dilution tank 1, the overflow pipe 103 is matched with the pre-adsorption device 2, the main pipeline 3 is buried in the ground, the waste water passing through the pre-adsorption device 2 enters the main pipeline 3, one end of the main pipeline 3 is closed, the other end is communicated with the storage pool 4, the pump body 5 is connected with a water pumping pipe 501 and a water delivery pipe 502, the water pumping pipe 501 extends into the storage pool 4, the end of the water delivery pipe 502 far away from the pump body 5 is butted with the adsorption tank 6, a water outlet pipe 888 is welded at the end of the adsorption tank 6 far away from the water feeding pipe 502.
The waste water inlet pipe 101 and the clear water inlet pipe 102 are coaxially arranged, and the distance between the waste water inlet pipe 101 and the clear water inlet pipe 102 is 40 cm.
The pre-adsorption device 2 comprises a plurality of tank bodies 201, a plurality of communicating pipes 202 are welded on the outer wall of each tank body 201, adjacent tank bodies 201 are communicated through the communicating pipes 202, a flange 203 is matched between two communicating pipes 202 which are connected in an abutting mode, a tank cover 204 is detachably matched on the bottom of each tank body 201, a first flange 211 is assembled between each tank body 201 and the corresponding tank cover 204, a convex ring 205 is welded on the inner wall of each tank body 201, an inner tank body 206 is supported through the convex ring 205, the upper end of each inner tank body 206 is provided with a small-diameter part 207, the communicating pipes 202 are arranged at positions close to the tops of the tank bodies 201, the communicating pipes 202 are opposite to the small-diameter parts 207, a conical surface 208 is transited between the small-diameter parts 207 and the inner tank bodies 206, water inlet holes 209 are uniformly distributed on the conical surface 208, and water outlet holes 210 are uniformly distributed at the bottom positions of the inner tank bodies 206, a coal briquette (not shown) is filled in the inner tank 206, a delivery pipe 212 is welded at the bottom of the tank cover 204, a water collecting pipe 7 is arranged below the tanks 201 in the same row, two ends of the water collecting pipe 7 are sealed, a second flange 701 is assembled between the water collecting pipe 7 and the delivery pipe 212, the lower end of the water collecting pipe 7 is welded and communicated with the main pipeline 3, a supporting leg 213 is welded at the outer wall of each tank 201, the supporting leg 213 is fixed with the ground through screws, and the overflow pipe 103 is communicated with one of the tanks 201; the inner tank 206 can be lifted by a suspension cable, so that the inner coal briquette can be replaced conveniently.
An open cup 221 is welded at the upper end of the tank body 201.
Two suspension grooves 222 for matching with the suspension cables are formed on the outer wall of the small-diameter part 207.
A first overflow pipe 444 is arranged between the storage tank 4 and the dilution tank 1, when the water amount entering the storage tank from the main water pipe is too much, and the pump body cannot be pumped and drained, the water which will overflow the storage tank will flow back to the dilution tank again through the first overflow pipe, and the height of the first overflow pipe is higher than that of the overflow pipe.
The adsorption tank 6 comprises a first tank body 601 and a first tank cover 602, a third flange 611 is arranged between the first tank body 601 and the first tank cover 602, the water supply pipe is connected with the end, away from the first tank body 601, of the first tank cover 602 in a welding manner, the water outlet pipe is welded at the end, away from the first tank body 601, of the first tank cover 602, a partition plate 603 is welded in the first tank cover 602, small holes 604 of 2mm are uniformly distributed on the surface of the partition plate 603, and activated carbon 605 is filled in the first tank body 601.
The preparation method of the activated carbon 605 comprises the following steps:
(1) cleaning fresh corn stalks, drying at 95 ℃ to constant weight, crushing, and sieving with a 80-mesh sieve to obtain corn stalk powder;
(2) mixing corn straw powder and an activating agent according to a solid-to-liquid ratio of 1 g: 8mL of the mixture is mixed, stirred for 15 minutes at the temperature of 50 ℃ at the speed of 80 rpm, then kept stand for 6 hours at the temperature of 25 ℃, and filtered by a 300-mesh filter cloth to obtain a solid which is a carbonized raw material;
(3) putting the carbonized raw material into a tube furnace, heating to 500 ℃ at a rate of 10 ℃/min under the protection of nitrogen, preserving the heat at 500 ℃ for 80 minutes, and cooling to room temperature to obtain a primary carbonized material, wherein the solid-to-liquid ratio of the primary carbonized material to the catalyst solution is 1 g: 0.1mL of the mixture is mixed, the mixture is stirred for 30 minutes at 40 revolutions per minute to obtain a mixture, the mixture is put into a tubular furnace, the temperature is raised to 650 ℃ at 10 ℃/minute under the protection of nitrogen, the temperature is kept at 650 ℃ for 80 minutes, and the mixture is cooled to room temperature to obtain a secondary carbonized material;
(4) mixing the secondary carbonized material and ethanol according to a solid-to-liquid ratio of 1 g: mixing 8mL of the mixture, stirring the mixture for 15 minutes at a speed of 80 rpm, filtering the mixture by using 300-mesh filter cloth, preserving the heat of a filter cake in 98 ℃ water for 8 minutes, filtering the mixture by using 300-mesh filter cloth, and drying the obtained solid to constant weight at 95 ℃ to obtain the activated carbon.
The activating agent comprises the following raw materials in parts by weight: 20 parts of potassium hydroxide, 15 parts of sodium carbonate, 2 parts of pore-expanding agent and 80 parts of deionized water. Weighing the raw materials according to the parts by weight, adding the raw materials into water, and stirring for 15 minutes at 200 revolutions per minute to obtain the activating agent.
The catalyst solution is prepared by the following method: mixing 0.5 weight part of catalyst and 99.5 weight parts of water, stirring for 15 minutes at 200 rpm to obtain the catalyst.
The catalyst is nickel sulfate.
The pore-expanding agent is triethanolamine.
The organic wastewater treatment method of the product comprises the following steps:
diluting the organic wastewater through a dilution tank, wherein the dilution ratio is 1: 3, namely, 3 tons of organic wastewater are input and mixed with 3 tons of clear water, because the wastewater inlet pipe and the clear water inlet pipe are coaxially arranged, therefore, when the wastewater and the clean water enter, the wastewater and the clean water collide together to achieve a physical mixing effect, the mixing effect is better, special mixing equipment is not required to be added, the cost is reduced, the diluted wastewater overflows into the pre-adsorption device through the overflow pipe after being accumulated in the dilution tank, the coal blocks are pre-adsorbed, the coal blocks can be dried in the sun after adsorbing harmful substances, and then are burnt after being dried in the sun, so that the effect of waste utilization is achieved, after the coal blocks are adsorbed, the chroma and COD in the organic wastewater are greatly reduced, the reduced organic wastewater is pumped into an adsorption tank and finally adsorbed by the active carbon in the adsorption tank to purify the organic wastewater, therefore, after the coal briquette is pretreated, harmful substances in the organic wastewater are reduced, and the service life of the activated carbon is prolonged.
The invention has the beneficial effects that: in this system, the accessible coal cinder carries out the preliminary treatment to organic waste water, reduces the COD content in the organic waste water, and the end then adopts the active carbon to filter, because organic waste water passes through the preliminary treatment for the COD content reduces, consequently can prolong the active carbon can the live time, reduces the filtration cost, and the coal cinder is after the absorption is accomplished, can be made into the coalball or be used for the industry burning, and the filtration cost of this product adopts single active carbon to filter relatively, and the filtration cost is lower.
Example 3
Essentially the same as example 2, except that:
the preparation method of the activated carbon 605 comprises the following steps:
(1) cleaning fresh corn stalks, drying at 95 ℃ to constant weight, crushing, and sieving with a 80-mesh sieve to obtain corn stalk powder;
(2) mixing corn straw powder and 2mol/L hydrochloric acid according to a solid-liquid ratio of 1 g: mixing 8mL of the mixture, stirring the mixture for 15 minutes at the speed of 80 rpm at the temperature of 50 ℃, performing ultrasonic treatment for 30 minutes at the temperature of 50 ℃, filtering the mixture by using 300-mesh filter cloth at the ultrasonic frequency of 20kHz and the ultrasonic power of 200W, washing a filter cake by using water until the pH value of a washing liquid is neutral, and drying the filter cake to constant weight at the temperature of 95 ℃ to obtain pretreated corn straw powder;
(3) mixing the pretreated corn straw powder and an activating agent according to a solid-to-liquid ratio of 1 g: 8mL of the mixture is mixed, stirred for 15 minutes at the temperature of 50 ℃ at the speed of 80 rpm, then kept stand for 6 hours at the temperature of 25 ℃, and filtered by a 300-mesh filter cloth to obtain a solid which is a carbonized raw material;
(4) putting the carbonized raw material into a tube furnace, heating to 500 ℃ at a rate of 10 ℃/min under the protection of nitrogen, preserving the heat at 500 ℃ for 80 minutes, and cooling to room temperature to obtain a primary carbonized material, wherein the solid-to-liquid ratio of the primary carbonized material to the catalyst solution is 1 g: 0.1mL of the mixture is mixed, the mixture is stirred for 30 minutes at 40 revolutions per minute to obtain a mixture, the mixture is put into a tubular furnace, the temperature is raised to 650 ℃ at 10 ℃/minute under the protection of nitrogen, the temperature is kept at 650 ℃ for 80 minutes, and the mixture is cooled to room temperature to obtain a secondary carbonized material;
(5) mixing the secondary carbonized material and ethanol according to a solid-to-liquid ratio of 1 g: mixing 8mL of the mixture, stirring the mixture for 15 minutes at a speed of 80 rpm, filtering the mixture by using 300-mesh filter cloth, preserving the heat of a filter cake in 98 ℃ water for 8 minutes, filtering the mixture by using 300-mesh filter cloth, and drying the obtained solid to constant weight at 95 ℃ to obtain the activated carbon.
The activating agent comprises the following raw materials in parts by weight: 20 parts of potassium hydroxide, 15 parts of sodium carbonate, 2 parts of pore-expanding agent and 80 parts of deionized water. Weighing the raw materials according to the parts by weight, adding the raw materials into water, and stirring for 15 minutes at 200 revolutions per minute to obtain the activating agent.
The catalyst solution is prepared by the following method: mixing 0.5 weight part of catalyst and 99.5 weight parts of water, stirring for 15 minutes at 200 rpm to obtain the catalyst.
The catalyst is nickel sulfate.
The pore-expanding agent is triethanolamine.
Example 4
Essentially the same as example 2, except that:
the preparation method of the activated carbon 605 comprises the following steps:
(1) cleaning fresh corn stalks, drying at 95 ℃ to constant weight, crushing, and sieving with a 80-mesh sieve to obtain corn stalk powder;
(2) mixing corn straw powder and 2mol/L hydrochloric acid according to a solid-liquid ratio of 1 g: mixing 8mL of the mixture, stirring the mixture for 15 minutes at the speed of 80 rpm at the temperature of 50 ℃, performing ultrasonic treatment for 30 minutes at the temperature of 50 ℃, filtering the mixture by using 300-mesh filter cloth at the ultrasonic frequency of 20kHz and the ultrasonic power of 200W, washing a filter cake by using water until the pH value of a washing liquid is neutral, and drying the filter cake to constant weight at the temperature of 95 ℃ to obtain pretreated corn straw powder;
(3) mixing the pretreated corn straw powder and an activating agent according to a solid-to-liquid ratio of 1 g: 8mL of the mixture is mixed, stirred for 15 minutes at the temperature of 50 ℃ at the speed of 80 rpm, then kept stand for 6 hours at the temperature of 25 ℃, and filtered by a 300-mesh filter cloth to obtain a solid which is a carbonized raw material;
(4) putting the carbonized raw material into a tube furnace, heating to 500 ℃ at a rate of 10 ℃/min under the protection of nitrogen, preserving the heat at 500 ℃ for 80 minutes, and cooling to room temperature to obtain a primary carbonized material, wherein the solid-to-liquid ratio of the primary carbonized material to the catalyst solution is 1 g: 0.1mL of the mixture is mixed, the mixture is stirred for 30 minutes at 40 revolutions per minute to obtain a mixture, the mixture is put into a tubular furnace, the temperature is raised to 650 ℃ at 10 ℃/minute under the protection of nitrogen, the temperature is kept at 650 ℃ for 80 minutes, and the mixture is cooled to room temperature to obtain a secondary carbonized material;
(5) mixing the secondary carbonized material and ethanol according to a solid-to-liquid ratio of 1 g: mixing 8mL of the mixture, stirring the mixture for 15 minutes at a speed of 80 rpm, filtering the mixture by using 300-mesh filter cloth, preserving the heat of a filter cake in 98 ℃ water for 8 minutes, filtering the mixture by using 300-mesh filter cloth, and drying the obtained solid to constant weight at 95 ℃ to obtain the activated carbon.
The activating agent comprises the following raw materials in parts by weight: 20 parts of potassium hydroxide, 15 parts of sodium carbonate, 2 parts of pore-expanding agent and 80 parts of deionized water. Weighing the raw materials according to the parts by weight, adding the raw materials into water, and stirring for 15 minutes at 200 revolutions per minute to obtain the activating agent.
The catalyst solution is prepared by the following method: mixing 0.5 weight part of catalyst and 99.5 weight parts of water, stirring for 15 minutes at 200 rpm to obtain the catalyst.
The catalyst is cerium sulfate.
The pore-expanding agent is triethanolamine.
Example 5
Essentially the same as example 2, except that:
the preparation method of the activated carbon 605 comprises the following steps:
(1) cleaning fresh corn stalks, drying at 95 ℃ to constant weight, crushing, and sieving with a 80-mesh sieve to obtain corn stalk powder;
(2) mixing corn straw powder and 2mol/L hydrochloric acid according to a solid-liquid ratio of 1 g: mixing 8mL of the mixture, stirring the mixture for 15 minutes at the speed of 80 rpm at the temperature of 50 ℃, performing ultrasonic treatment for 30 minutes at the temperature of 50 ℃, filtering the mixture by using 300-mesh filter cloth at the ultrasonic frequency of 20kHz and the ultrasonic power of 200W, washing a filter cake by using water until the pH value of a washing liquid is neutral, and drying the filter cake to constant weight at the temperature of 95 ℃ to obtain pretreated corn straw powder;
(3) mixing the pretreated corn straw powder and an activating agent according to a solid-to-liquid ratio of 1 g: 8mL of the mixture is mixed, stirred for 15 minutes at the temperature of 50 ℃ at the speed of 80 rpm, then kept stand for 6 hours at the temperature of 25 ℃, and filtered by a 300-mesh filter cloth to obtain a solid which is a carbonized raw material;
(4) putting the carbonized raw material into a tube furnace, heating to 500 ℃ at a rate of 10 ℃/min under the protection of nitrogen, preserving the heat at 500 ℃ for 80 minutes, and cooling to room temperature to obtain a primary carbonized material, wherein the solid-to-liquid ratio of the primary carbonized material to the catalyst solution is 1 g: 0.1mL of the mixture is mixed, the mixture is stirred for 30 minutes at 40 revolutions per minute to obtain a mixture, the mixture is put into a tubular furnace, the temperature is raised to 650 ℃ at 10 ℃/minute under the protection of nitrogen, the temperature is kept at 650 ℃ for 80 minutes, and the mixture is cooled to room temperature to obtain a secondary carbonized material;
(5) mixing the secondary carbonized material and ethanol according to a solid-to-liquid ratio of 1 g: mixing 8mL of the mixture, stirring the mixture for 15 minutes at a speed of 80 rpm, filtering the mixture by using 300-mesh filter cloth, preserving the heat of a filter cake in 98 ℃ water for 8 minutes, filtering the mixture by using 300-mesh filter cloth, and drying the obtained solid to constant weight at 95 ℃ to obtain the activated carbon.
The activating agent comprises the following raw materials in parts by weight: 20 parts of potassium hydroxide, 15 parts of sodium carbonate, 2 parts of pore-expanding agent and 80 parts of water. Weighing the raw materials according to the parts by weight, adding the raw materials into water, and stirring for 15 minutes at 200 revolutions per minute to obtain the activating agent.
The catalyst solution is prepared by the following method: mixing 0.5 weight part of catalyst and 99.5 weight parts of water, stirring for 15 minutes at 200 rpm to obtain the catalyst.
The catalyst is a mixture of nickel sulfate and cerium sulfate, wherein the mass ratio of the nickel sulfate to the cerium sulfate is 3: 2.
the pore-expanding agent is triethanolamine.
Example 6
The preparation method of the activated carbon 605 comprises the following steps:
(1) cleaning fresh corn stalks, drying at 95 ℃ to constant weight, crushing, and sieving with a 80-mesh sieve to obtain corn stalk powder;
(2) mixing corn straw powder and 2mol/L hydrochloric acid according to a solid-liquid ratio of 1 g: mixing 8mL of the mixture, stirring the mixture for 15 minutes at the speed of 80 rpm at the temperature of 50 ℃, performing ultrasonic treatment for 30 minutes at the temperature of 50 ℃, filtering the mixture by using 300-mesh filter cloth at the ultrasonic frequency of 20kHz and the ultrasonic power of 200W, washing a filter cake by using water until the pH value of a washing liquid is neutral, and drying the filter cake to constant weight at the temperature of 95 ℃ to obtain pretreated corn straw powder;
(3) mixing the pretreated corn straw powder and an activating agent according to a solid-to-liquid ratio of 1 g: 8mL of the mixture is mixed, stirred for 15 minutes at the temperature of 50 ℃ at the speed of 80 rpm, then kept stand for 6 hours at the temperature of 25 ℃, and filtered by a 300-mesh filter cloth to obtain a solid which is a carbonized raw material;
(4) putting the carbonized raw material into a tube furnace, heating to 500 ℃ at a rate of 10 ℃/min under the protection of nitrogen, preserving the heat at 500 ℃ for 80 minutes, and cooling to room temperature to obtain a primary carbonized material, wherein the solid-to-liquid ratio of the primary carbonized material to the catalyst solution is 1 g: 0.1mL of the mixture is mixed, the mixture is stirred for 30 minutes at 40 revolutions per minute to obtain a mixture, the mixture is put into a tubular furnace, the temperature is raised to 650 ℃ at 10 ℃/minute under the protection of nitrogen, the temperature is kept at 650 ℃ for 80 minutes, and the mixture is cooled to room temperature to obtain a secondary carbonized material;
(5) mixing the secondary carbonized material and ethanol according to a solid-to-liquid ratio of 1 g: mixing 8mL of the mixture, stirring the mixture for 15 minutes at a speed of 80 rpm, filtering the mixture by using 300-mesh filter cloth, preserving the heat of a filter cake in 98 ℃ water for 8 minutes, filtering the mixture by using 300-mesh filter cloth, and drying the obtained solid to constant weight at 95 ℃ to obtain the activated carbon.
The activating agent comprises the following raw materials in parts by weight: 20 parts of potassium hydroxide, 15 parts of sodium carbonate, 2 parts of pore-expanding agent and 80 parts of deionized water. Weighing the raw materials according to the parts by weight, adding the raw materials into water, and stirring for 15 minutes at 200 revolutions per minute to obtain the activating agent.
The catalyst solution is prepared by the following method: mixing 0.5 weight part of catalyst and 99.5 weight parts of water, stirring for 15 minutes at 200 rpm to obtain the catalyst.
The catalyst is a mixture of nickel sulfate and cerium sulfate, wherein the mass ratio of the nickel sulfate to the cerium sulfate is 3: 2.
the pore-expanding agent is meglumine.
Example 7
The preparation method of the activated carbon 605 comprises the following steps:
(1) cleaning fresh corn stalks, drying at 95 ℃ to constant weight, crushing, and sieving with a 80-mesh sieve to obtain corn stalk powder;
(2) mixing corn straw powder and 2mol/L hydrochloric acid according to a solid-liquid ratio of 1 g: mixing 8mL of the mixture, stirring the mixture for 15 minutes at the speed of 80 rpm at the temperature of 50 ℃, performing ultrasonic treatment for 30 minutes at the temperature of 50 ℃, filtering the mixture by using 300-mesh filter cloth at the ultrasonic frequency of 20kHz and the ultrasonic power of 200W, washing a filter cake by using water until the pH value of a washing liquid is neutral, and drying the filter cake to constant weight at the temperature of 95 ℃ to obtain pretreated corn straw powder;
(3) mixing the pretreated corn straw powder and an activating agent according to a solid-to-liquid ratio of 1 g: 8mL of the mixture is mixed, stirred for 15 minutes at the temperature of 50 ℃ at the speed of 80 rpm, then kept stand for 6 hours at the temperature of 25 ℃, filtered by a 300-mesh filter cloth, and a filter cake is taken as a carbonized raw material;
(4) putting the carbonized raw material into a tube furnace, heating to 500 ℃ at a rate of 10 ℃/min under the protection of nitrogen, preserving the heat at 500 ℃ for 80 minutes, and cooling to room temperature to obtain a primary carbonized material, wherein the solid-to-liquid ratio of the primary carbonized material to the catalyst solution is 1 g: 0.1mL of the mixture is mixed, the mixture is stirred for 30 minutes at 40 revolutions per minute to obtain a mixture, the mixture is put into a tubular furnace, the temperature is raised to 650 ℃ at 10 ℃/minute under the protection of nitrogen, the temperature is kept at 650 ℃ for 80 minutes, and the mixture is cooled to room temperature to obtain a secondary carbonized material;
(5) mixing the secondary carbonized material and ethanol according to a solid-to-liquid ratio of 1 g: mixing 8mL of the mixture, stirring the mixture for 15 minutes at a speed of 80 rpm, filtering the mixture by using 300-mesh filter cloth, preserving the heat of a filter cake in 98 ℃ water for 8 minutes, filtering the mixture by using 300-mesh filter cloth, and drying the obtained solid to constant weight at 95 ℃ to obtain the activated carbon.
The activating agent comprises the following raw materials in parts by weight: 20 parts of potassium hydroxide, 15 parts of sodium carbonate, 2 parts of pore-expanding agent and 80 parts of deionized water. Weighing the raw materials according to the parts by weight, adding the raw materials into water, and stirring for 15 minutes at 200 revolutions per minute to obtain the activating agent.
The catalyst solution is prepared by the following method: mixing 0.5 weight part of catalyst and 99.5 weight parts of water, stirring for 15 minutes at 200 rpm to obtain the catalyst.
The catalyst is a mixture of nickel sulfate and cerium sulfate, wherein the mass ratio of the nickel sulfate to the cerium sulfate is 3: 2.
the pore-expanding agent is a mixture of triethanolamine and meglumine, wherein the mass ratio of the triethanolamine to the meglumine is 3: 1.
Comparative example 1
Essentially the same as example 2, except that:
the preparation method of the activated carbon 605 comprises the following steps:
(1) cleaning fresh corn stalks, drying at 95 ℃ to constant weight, crushing, and sieving with a 80-mesh sieve to obtain corn stalk powder;
(2) mixing corn straw powder and 2mol/L hydrochloric acid according to a solid-liquid ratio of 1 g: mixing 8mL of the mixture, stirring the mixture for 15 minutes at the speed of 80 rpm at the temperature of 50 ℃, performing ultrasonic treatment for 30 minutes at the temperature of 50 ℃, filtering the mixture by using 300-mesh filter cloth at the ultrasonic frequency of 20kHz and the ultrasonic power of 200W, washing a filter cake by using water until the pH value of a washing liquid is neutral, and drying the filter cake to constant weight at the temperature of 95 ℃ to obtain pretreated corn straw powder;
(3) mixing the pretreated corn straw powder and an activating agent according to a solid-to-liquid ratio of 1 g: 8mL of the mixture is mixed, stirred for 15 minutes at the temperature of 50 ℃ at the speed of 80 rpm, then kept stand for 6 hours at the temperature of 25 ℃, and filtered by a 300-mesh filter cloth to obtain a solid which is a carbonized raw material;
(4) putting the carbonized raw material into a tube furnace, heating to 500 ℃ at a rate of 10 ℃/min under the protection of nitrogen, preserving the heat at 500 ℃ for 80 minutes, and cooling to room temperature to obtain a primary carbonized material, wherein the solid-to-liquid ratio of the primary carbonized material to the catalyst solution is 1 g: 0.1mL of the mixture is mixed, the mixture is stirred for 30 minutes at 40 revolutions per minute to obtain a mixture, the mixture is put into a tubular furnace, the temperature is raised to 650 ℃ at 10 ℃/minute under the protection of nitrogen, the temperature is kept at 650 ℃ for 80 minutes, and the mixture is cooled to room temperature to obtain a secondary carbonized material;
(5) mixing the secondary carbonized material and ethanol according to a solid-to-liquid ratio of 1 g: mixing 8mL of the mixture, stirring the mixture for 15 minutes at a speed of 80 rpm, filtering the mixture by using 300-mesh filter cloth, preserving the heat of a filter cake in 98 ℃ water for 8 minutes, filtering the mixture by using 300-mesh filter cloth, and drying the obtained solid to constant weight at 95 ℃ to obtain the activated carbon.
The activating agent comprises the following raw materials in parts by weight: 20 parts of potassium hydroxide, 15 parts of sodium carbonate and 80 parts of deionized water. Weighing the raw materials according to the parts by weight, adding the raw materials into water, and stirring for 15 minutes at 200 revolutions per minute to obtain the activating agent.
The catalyst solution is prepared by the following method: mixing 0.5 weight part of catalyst and 99.5 weight parts of water, stirring for 15 minutes at 200 rpm to obtain the catalyst.
The catalyst is a mixture of nickel sulfate and cerium sulfate, wherein the mass ratio of the nickel sulfate to the cerium sulfate is 3: 2.
test example 1
And (3) measuring the methylene blue adsorption value: the method is carried out according to GB/T12496.10-1999 determination of methylene blue adsorption value of wood activated carbon test method.
Specific surface area measurement: the measurement was carried out by using a NOVA type 1200 specific surface area and porosity analyzer manufactured by Quantachrome corporation, USA. Before adsorption and sample measurement, a sample is denitrified at 120 ℃ for 3h, nitrogen is used as an adsorbate, adsorption is carried out at the liquid nitrogen temperature of 77K, and the specific surface area is calculated by using a Brunaner-Emmett-Teller (BET) equation. The total pore volume was calculated from the volume of liquid nitrogen adsorbed at a relative pressure of 0.99 according to the BarrrttJoyner and Halenda (BJH) models.
The methylene blue adsorption values, specific surface areas and pore volumes obtained in the examples and the comparative examples were measured, and the specific results are shown in table 1.
Table 1 table of results of activated carbon performance test
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (4)
1. A high concentration organic waste water processing system which characterized in that: the device comprises a dilution tank, a pre-adsorption device, a main pipeline, a storage tank, a pump body and an adsorption tank, wherein a wastewater inlet pipe for entering organic wastewater is installed on one side of the dilution tank, a water inlet pipe for entering clear water is installed on the other side of the dilution tank, an overflow pipe is connected to the outer wall of the dilution tank and is matched with the pre-adsorption device, the main pipeline is buried in the ground, wastewater passing through the pre-adsorption device enters the main pipeline, one end of the main pipeline is closed, the other end of the main pipeline is communicated with the storage tank, the pump body is connected with a water pumping pipe and a water feeding pipe, the water pumping pipe extends into the storage tank, the end, far away from the pump body, of the water feeding pipe is butted with the adsorption tank, and the end, far away from the water feeding pipe, of the adsorption tank is welded with a water outlet pipe;
the waste water inlet pipe and the clear water inlet pipe are coaxially arranged, and the distance between the waste water inlet pipe and the clear water inlet pipe is less than 60 cm;
the pre-adsorption device comprises a plurality of tank bodies, a plurality of communicating pipes are welded on the outer wall of each tank body, adjacent tank bodies are communicated through the communicating pipes, a flange is matched between two mutually connected communicating pipes, a tank cover is detachably matched at the bottom of each tank body, a first flange is assembled between each tank body and the corresponding tank cover, a convex ring is welded on the inner wall of each tank body, an inner tank body is supported through the convex ring, a small-pipe-diameter part is arranged at the upper end of the inner tank body, the communicating pipes are arranged at positions close to the top of the tank bodies, the communicating pipes are opposite to the small-pipe-diameter parts, a conical surface is transitionally arranged between each small-pipe-diameter part and the inner tank body, water inlet holes are evenly distributed on the conical surface, water outlet holes are evenly distributed at the bottom of the inner tank body, coal blocks are filled in the inner tank body, and a delivery pipe is welded at the bottom of the tank cover, a water collecting pipe is arranged below the tank bodies in the same row, two ends of the water collecting pipe are sealed, a second flange is assembled between the water collecting pipe and the delivery pipe, the lower end of the water collecting pipe is welded and communicated with the main pipeline, supporting legs are welded on the outer wall of each tank body, the supporting legs are fixed with the ground through screws, and the overflow pipe is communicated with one of the tank bodies;
an open cup is welded at the upper end of the tank body;
two suspension grooves matched with the suspension cables are formed in the outer wall of the small-caliber part;
a first overflow pipe is assembled between the storage tank and the dilution tank, when the water entering the storage tank from the main water pipe is too much and the pump body cannot be pumped and drained, the water which is about to overflow from the storage tank flows back to the dilution tank again through the first overflow pipe, and the height of the first overflow pipe is higher than that of the overflow pipe;
the adsorption tank comprises a first tank body and a first tank cover, a third flange is assembled between the first tank body and the first tank cover, the water supply pipe is connected with one end, far away from the first tank cover, of the first tank body in a welding mode, the water outlet pipe is welded at one end, far away from the first tank body, of the first tank cover, a partition plate is welded in the first tank cover, small holes with the diameter of 1-2 mm are uniformly distributed in the surface of the partition plate, and activated carbon is filled in the first tank body;
the preparation method of the activated carbon comprises the following steps:
(1) cleaning fresh corn stalks, drying at 90-100 ℃ to constant weight, crushing, and sieving by a sieve with 10-100 meshes to obtain corn stalk powder;
(2) mixing corn straw powder and 1-3mol/L hydrochloric acid according to a solid-liquid ratio of 1 g: (5-10) mL, stirring at 40-60 ℃ for 10-20 minutes at 60-100 rpm, performing ultrasonic treatment at 40-60 ℃ for 20-40 minutes, filtering, washing with water until the pH value of washing liquor is neutral, and drying at 90-100 ℃ to constant weight to obtain pretreated corn straw powder;
(3) mixing the pretreated corn straw powder and an activating agent according to a solid-to-liquid ratio of 1 g: (5-10) mL, stirring at 40-60 ℃ for 10-20 minutes at 60-100 rpm, standing at 20-30 ℃ for 4-8 hours, and filtering to obtain a solid serving as a carbonization raw material;
(4) putting the carbonized raw material into a tubular furnace, heating to 450-550 ℃ at a rate of 8-12 ℃/min under the protection of nitrogen, preserving the heat at 450-550 ℃ for 60-90 minutes, cooling to room temperature to obtain a primary carbonized material, wherein the solid-to-liquid ratio of the primary carbonized material to the catalyst solution is 1 g: (0.02-0.2) mL, stirring for 20-40 minutes at 40-100 rpm to obtain a mixture, placing the mixture into a tubular furnace, heating to 750 ℃ at 8-12 ℃/min under the protection of nitrogen, preserving the heat at 750 ℃ of 550 ℃ for 60-90 minutes, and cooling to room temperature to obtain a secondary carbonized material;
(5) mixing the secondary carbonized material and ethanol according to a solid-to-liquid ratio of 1 g: mixing 8mL of the mixture, stirring the mixture for 15 minutes at a speed of 80 rpm, filtering the mixture by using 300-mesh filter cloth, preserving the heat of a filter cake in 98 ℃ water for 8 minutes, filtering the mixture by using 300-mesh filter cloth, and drying the obtained solid to constant weight at 95 ℃ to obtain the activated carbon.
2. The high concentration organic wastewater treatment system according to claim 1, wherein: the activating agent comprises the following raw materials in parts by weight: 15-25 parts of potassium hydroxide, 10-20 parts of sodium carbonate, 1-3 parts of pore-expanding agent and 60-100 parts of water.
3. The high concentration organic wastewater treatment system according to claim 1, wherein: the catalyst is a mixture of nickel sulfate and cerium sulfate, wherein the mass ratio of the nickel sulfate to the cerium sulfate is (1-5): (1-5).
4. The high concentration organic wastewater treatment system according to claim 1, wherein: the pore-expanding agent is triethanolamine and/or meglumine.
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| CN102515162A (en) * | 2011-11-09 | 2012-06-27 | 上海电力学院 | Biomass activated carbon, preparation method thereof and application thereof in flue gas mercury removal |
| CN104071786A (en) * | 2014-07-18 | 2014-10-01 | 福州大学 | Preparation method for graphitized activated carbon with high specific surface area |
| CN205419975U (en) * | 2015-09-25 | 2016-08-03 | 中国矿业大学(北京) | High concentration coking wastewater's processing system |
| CN106977003A (en) * | 2016-01-15 | 2017-07-25 | 宝山钢铁股份有限公司 | Electrical conductivity and the method and apparatus of total iron in a kind of cold rolling hydrochloric acid acid regeneration waste water of reduction |
| CN206570120U (en) * | 2017-02-13 | 2017-10-20 | 吉林省水文水资源局（吉林省水环境监测中心） | A kind of high concentrated organic wastewater processing unit |
| CN107151016A (en) * | 2017-06-28 | 2017-09-12 | 宿州市逢源生物科技有限公司 | A kind of preparation method that straw biomass charcoal is prepared under carbon dioxide atmosphere |
| CN108689510A (en) * | 2018-08-01 | 2018-10-23 | 张碌章 | A kind of sewage disposal device based on graphene |
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