CN213596118U - Activated biochar sewage treatment reaction system - Google Patents
Activated biochar sewage treatment reaction system Download PDFInfo
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- CN213596118U CN213596118U CN202120320692.3U CN202120320692U CN213596118U CN 213596118 U CN213596118 U CN 213596118U CN 202120320692 U CN202120320692 U CN 202120320692U CN 213596118 U CN213596118 U CN 213596118U
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Abstract
The utility model belongs to environmental protection water treatment field discloses an active biological charcoal sewage treatment reaction system. The system comprises a biochar reaction subsystem, a specific bacteria fermentation subsystem and a discharging screening subsystem; the biological carbon reaction subsystem comprises a reactor shell, a water distribution and gas distribution device, a detachable aerator, an active biological carbon carrier support bracket, a water outlet tank, a water separator and a water inlet pipe. The discharging maintenance pipe of the discharging screening subsystem is connected with the outlet end of the discharging pipe of the biochar reaction subsystem; a liquid inlet of a dispensing groove of the specific bacteria fermentation subsystem is connected with a specific bacteria discharge port of a water outlet of the biochar reaction subsystem; and a first return pipeline connected with a liquid outlet pump of the specific bacteria fermentation subsystem is connected with a water inlet of the biochar reaction subsystem. The utility model discloses use biological charcoal reaction subsystem to handle difficult degradation organic matter sewage, can directly reduce COD, ammonia nitrogen to emission standard through the biochemical process.
Description
Technical Field
The utility model belongs to environmental protection water treatment field specifically relates to an active biological charcoal sewage treatment reaction system.
Background
The current common treatment processes for advanced wastewater treatment include physical and biological methods.
The physicochemical method comprises an advanced oxidation method, which is represented by an ozone direct oxidation method and an ozone catalytic oxidation method, and the hard-to-degrade organic matters in the sewage are purified by utilizing the strong oxidation capability of ozone. The ozone direct oxidation method is to diffuse ozone into sewage through gas-water contact equipment to oxidize organic matters in the wastewater. The catalytic ozonation method is to utilize a catalyst to initiate ozone decomposition to generate hydroxyl radical to oxidize organic matters, and improves the decomposition rate of the organic matters and the utilization rate of ozone to a certain degree. The current mainstream mode for producing ozone is silent discharge method, which has large equipment investment and higher operating cost. The ozone tail gas which is not completely contacted with the sewage and is not completely reacted is discharged into the atmosphere, and the odor threshold value is low, so that the odor pollution is easily generated. Therefore, both the direct ozone oxidation method and the catalytic ozone oxidation method have the problems of high operation energy consumption and secondary pollution.
The biological method comprises an aeration biological filter and an activated carbon filter. The Biological Aerated Filter (BAF) process is an aerobic bioreactor which adopts biological filter materials to fix biological membranes, and is a membrane biological treatment process. Microorganisms are attached to the surface of the filter material, and in the process that sewage flows through the surface of the filter material, pollutants are subjected to oxidative decomposition through the actions of biological oxidation and the like generated in a biological membrane, so that the sewage is purified. The BAF process realizes the purification of water quality by capturing and decomposing organic matters by bacteria on the surface of a filter material, the removal of the organic matters is limited by the reproduction rate of microorganisms, and the removal effect on the organic matters with poor biodegradability is limited. The common filter material of the biological aerated filter comprises ceramsite, volcanic rock and organic polymer filler.
The activated carbon filter takes activated carbon as a filter material, removes suspended matters in sewage through the mechanical filtering action of the filter material, and simultaneously generates a biological membrane on the surface of the activated carbon to generate a wastewater biological treatment process with the synergistic effect of activated carbon adsorption and microbial oxidative decomposition of organic matters. Although the activated carbon filter can adsorb organic matters in sewage, the number of effective strains in the biological membrane is very small, so that the organic matters are difficult to degrade, and the problems of short service life of filter materials and poor COD removal effect exist.
The aeration biological filter and the activated carbon filter, which are used as the traditional biochemical treatment process, have the problems of small effective strain quantity, low decomposition efficiency on refractory substances, incapability of adapting to intermittent operation or fluctuation of inlet water quality and unstable outlet water quality. In addition, when the aeration biological filter and the activated carbon filter are overhauled by an aerator, the filter material needs to be completely drawn out or enters the closed space below the filter material layer through manual work, the time consumption is huge, the safety risk exists, when the filter material is replaced, the filter material needs to be completely removed manually, and the working strength of operators is high.
Therefore, aiming at the defects of the current advanced sewage treatment common treatment process, a novel sewage treatment system which is mainly used for controlling the tail end of organic matters in sewage in the industries of petroleum, chemical engineering, printing and dyeing, papermaking and the like, is suitable for three-stage sewage treatment and can remove COD in the sewage is urgently needed to be provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an active biochar sewage treatment reaction system aiming at the defects of the prior art. The utility model replaces the traditional advanced oxidation, aeration biological filter and active carbon filter processes. The biological carbon reaction subsystem is used for treating refractory organic matter sewage, and COD and ammonia nitrogen can be directly reduced to IV-class discharge standard of surface water environment quality standard (GB3838-2002) by a biochemical method. And no oxidant is used, the operation cost is low, and no odor and secondary pollution are caused.
In order to realize the aim, the utility model provides an active biochar sewage treatment reaction system, which comprises a biochar reaction subsystem, a specific bacteria fermentation subsystem and an unloading and screening subsystem;
the biochar reaction subsystem comprises a reactor shell, a water distribution and gas distribution device, a detachable aerator, an active biochar carrier support bracket, a water outlet tank, a water separator and a water inlet pipe;
the water and gas distribution device, the detachable aerator, the active biological carbon carrier support bracket and the water outlet tank are sequentially and horizontally arranged in the reactor shell from bottom to top;
a stainless steel screen is laid above the active biochar carrier bracket, a slope is arranged below the active biochar carrier bracket, the lowest point of the slope is the central position below the active biochar carrier bracket, a discharge hole is formed in the central position and connected with a discharge pipe, and the outlet end of the discharge pipe is arranged on the outer side of the reactor shell;
one end of the water inlet pipe is connected with the water distribution and gas distribution device; the port at the other end of the water inlet pipe is simultaneously provided with a water inlet and a backwashing water inlet; the water inlet pipe is also provided with a backwashing air inlet and an emptying port;
the water separator is arranged outside the reactor shell and is connected with the water outlet groove; the upper side and the lower side of the water separator are respectively provided with a water outlet and a backwashing water outlet; the water outlet comprises a sewage discharge port and a specific bacteria discharge port;
an exhaust port is arranged at the top of the outer side of the reactor shell and is connected with a breather valve;
the discharging maintenance pipe of the discharging screening subsystem is connected with the outlet end of the discharging pipe of the biochar reaction subsystem;
a liquid inlet of a dispensing groove of the specific bacteria fermentation subsystem is connected with a specific bacteria discharge port of a water outlet of the biochar reaction subsystem; and a first return pipeline connected with a liquid outlet pump of the specific bacteria fermentation subsystem is connected with a water inlet of the biochar reaction subsystem.
Preferably, the first and second electrodes are formed of a metal,
the reactor shell is a cuboid or a cylinder;
the bottom of the outer side of the reactor shell is provided with a supporting leg;
the height of the reactor shell is 5-7m, and the height of the supporting legs is 0.8-1.2 m.
Preferably, the first and second electrodes are formed of a metal,
the water distribution and gas distribution device comprises a main feeding pipe, a distribution chamber, a plurality of distribution branch pipes and an aerator bracket;
one end of the water inlet pipe, the feeding main pipe and the distribution chamber are connected in sequence;
the plurality of distribution branch pipes are uniformly distributed on the side wall of the distribution chamber;
the aerator bracket is arranged at the top of the distribution chamber and is arc-shaped;
the distribution chamber is a cylindrical chamber, the diameter is 200-300mm, and the height is 200-350 mm;
the number of the distribution branch pipes is 4-8; the bottoms of the plurality of distribution branch pipes are respectively provided with water distribution and air distribution holes, the opening direction of the water distribution and air distribution holes is 45 degrees inclined downwards from the right side or 45 degrees inclined downwards from the left side, the opening directions are alternately arranged, the interval between the water distribution and air distribution holes is 50-150mm, and the aperture of each water distribution and air distribution hole is phi 3-8 mm.
Preferably, the first and second electrodes are formed of a metal,
the detachable aerator comprises a plurality of detachable aeration pipes;
the side walls of the reactor shell corresponding to the plurality of detachable aeration pipes are respectively provided with an air port connecting pipe; each air port connecting pipe is provided with a standard flange; the standard flange is connected with an air non-standard flange; the threaded joint arranged on the inner wall of the central hole of the air nonstandard flange is communicated with a port at one end of the detachable aeration pipe, and the outer wall of the central hole of the air nonstandard flange is communicated with the air pipeline;
the air pipeline is arranged around the reactor shell, and detachable flanges are arranged on the air pipeline close to two ends of each detachable aeration pipe and used for realizing independent detachment and maintenance of each detachable aeration pipe;
the other end of the detachable aerator pipe is fixed through the aerator bracket;
the caliber of the air port connecting pipe is DN100-DN 150;
the outer diameter and the bolt hole size of the air non-standard flange are consistent with those of the standard flange, the outer diameter size is phi 220-285mm, and the bolt hole size is phi 18-22 mm;
the size of the central hole of the air nonstandard flange is consistent with that of the interface of the detachable aeration pipe and is DN32-DN 40.
Preferably, the first and second electrodes are formed of a metal,
the active biological carbon carrier support bracket is a perforated plate carrier support bracket, the aperture of the active biological carbon carrier support bracket is 10-20mm, the hole spacing is 30-50mm, and the height is 1-3 m;
the aperture of the stainless steel screen is 1-2 mm;
the gradient of the slope is 1-5%;
the aperture of the discharge hole is 200-300 mm;
the active biochar with the mesopore proportion of more than 50 percent is selected.
Preferably, the first and second electrodes are formed of a metal,
the height difference distance between the water outlet groove and the active biochar carrier bracket is 0.5-1.5 m;
the water outlet groove is a cross-shaped or Chinese character feng-shaped groove, a drainage window is arranged on the side wall of the water outlet groove, a material leakage prevention net is laid on the drainage window, and the aperture of the material leakage prevention net is 1-2 mm; the water outlet groove is provided with a water outlet pipe, and the water outlet groove is connected with the water distributor through the water outlet pipe.
Preferably, the water separator is a box container or a cylindrical container, and the volume of the water separator is 25-35L.
Preferably, the first and second electrodes are formed of a metal,
the water inlet pipe is a U-shaped pipeline; the height of the pipeline of the U-shaped part is 0.6-1.0 m;
the emptying port is arranged on a horizontal pipeline at the bottom of the U-shaped pipeline;
the distance between the backwashing air inlet and the water inlet is 0.2-0.4 m.
Preferably, the first and second electrodes are formed of a metal,
the discharging sieve molecular system also comprises a feeding hopper, a driving device, a transmission device, a screening mesh belt, a sewage collecting box, a material collecting bag, a sewage discharge pipe, a discharging overhaul valve and the discharging overhaul pipe; the unloading maintenance pipe, the unloading maintenance valve and the feeding hopper are connected in sequence; the driving device drives the transmission device to rotate, and the screening mesh belt rotates clockwise along with the rotation of the transmission device; the screening mesh belt is arranged below the feeding hopper, and the water inlet side of the sewage collecting tank is correspondingly arranged below the screening mesh belt; the material receiving bag is arranged on one side of the sewage collecting box corresponding to the clockwise running tail end of the screening mesh belt; the sewage discharge pipe is arranged at the bottom of the sewage collecting box;
the aperture of the screening mesh belt is 1-2mm, and the length-width ratio is 6-8: 1.
Preferably, the first and second electrodes are formed of a metal,
the specific bacteria fermentation subsystem comprises a fermentation tank and the dispensing tank;
the dispensing tank comprises a tank body, a microbial inoculum adding port, a culture medium adding port, an alkali liquor adding port, a backflow port, a liquid outlet and the liquid inlet; the microbial inoculum adding port, the culture medium adding port, the alkali liquor adding port and the backflow port are all arranged at the upper part of the tank body; the liquid outlet and the liquid inlet are arranged on the side wall of the groove body;
the fermentation tank comprises a cylindrical container shell, a feeding hole, a discharging hole, a baffling baffle, an aeration device, a top exhaust hole, a thermometer interface, a PH meter interface, a dissolved oxygen meter interface and an observation hole; the baffling baffle is arranged in the cylindrical container shell and forms a water passing hole and an air vent with the bottom and the top of the cylindrical container shell respectively; a steam jacket is sleeved outside the cylindrical container shell, and a steam inlet and a condensed water outlet are formed in the steam jacket; the aeration device is arranged above the water through hole in the cylindrical container shell and is connected with an air inlet arranged on the outer side of the steam jacket; the top exhaust port, the thermometer interface, the PH meter interface and the dissolved oxygen meter interface are all arranged at the top of the outer side of the cylindrical container shell; the observation port is arranged on the outer side wall of the cylindrical container shell; the feed inlet and the discharge outlet are both arranged on the side wall of the upper part of the cylindrical container shell; the thermometer interface, the PH meter interface and the dissolved oxygen instrument interface are respectively provided with a temperature transmitter, a pH on-line analyzer and a dissolved oxygen instrument;
the liquid outlet of the dispensing tank, the liquid inlet pump and the feed inlet of the fermentation tank are sequentially connected;
the discharge hole of the fermentation tank, the liquid outlet pump and the alkalinity analyzer are sequentially connected, and a second return pipeline connected with the liquid outlet pump is connected with a return port of the dosing tank;
the height of the water passing hole is 200-300 mm;
the height of the vent hole is 100-200 mm;
the aeration device is a microporous aeration disc.
The technical scheme of the utility model following beneficial effect has:
(1) the utility model discloses a specific fungus fermentation of specific fungus fermentation subsystem can improve effective bacterium quantity in the biological charcoal reaction subsystem plays the promotion effect to the target selection of bacterium, makes biological charcoal reaction subsystem can adapt to intermittent type operation, quality of water and strike scheduling problem.
(2) The utility model discloses a bacterial targeting of specific fungus fermentation subsystem is cultivated and can is improved specific pollutant and get rid of the effect, the utility model discloses use charcoal reaction subsystem handles difficult degradation organic matter sewage, can directly reduce COD and ammonia nitrogen to surface water environment quality standard (GB3838 supple materials 2002) IV class emission standard through the biochemical method. The utility model does not use oxidant, has low operation cost and no odor secondary pollution.
(3) The special bacteria fermentation subsystem of the utility model is in continuous operation and can play the role of maintaining the effective bacteria quantity of the system when the biological reaction system is in normal operation and is stopped. The specific bacteria fermentation subsystem has the functions of automatically controlling pH, dissolved oxygen and temperature, and the bacteria cultivation effect is analyzed and judged on line through alkalinity, so that unattended and full-automatic operation is realized.
(4) The biological carbon reaction subsystem of the utility model optimizes the detachable aerator structure, so that the replacement procedure of the detachable aerator is convenient and simple.
(5) The discharge screening subsystem of the utility model can greatly reduce the workload of replacing the activated charcoal carrier.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout the exemplary embodiments of the present invention.
Fig. 1 shows a schematic diagram of the biochar reaction subsystem of an activated biochar sewage treatment reaction system provided by the utility model.
Fig. 2 shows a top view of the biochar reaction subsystem of an activated biochar sewage treatment reaction system provided by the utility model.
Fig. 3 shows a schematic diagram of a water and gas distributor of the biochar reaction subsystem of the activated biochar sewage treatment reaction system provided by the utility model.
Fig. 4 shows a schematic diagram of a distribution branch pipe of a water and gas distributor of a biochar reaction subsystem of an activated biochar sewage treatment reaction system provided by the utility model.
Fig. 5 shows a partial enlarged view of the detachable aerator of the biological carbon reaction subsystem of the active biological carbon sewage treatment reaction system provided by the utility model.
Fig. 6 is a plan view of the detachable aerator of the biological carbon reaction subsystem of the active biological carbon sewage treatment reaction system provided by the utility model.
Fig. 7 shows a schematic diagram of the water outlet tank of the biochar reaction subsystem of the activated biochar sewage treatment reaction system provided by the utility model.
Fig. 8 shows a schematic diagram of the discharging and screening subsystem of the activated biochar sewage treatment reaction system provided by the utility model.
FIG. 9 shows a schematic diagram of the specific bacteria fermentation subsystem of an activated charcoal sewage treatment reaction system provided by the present invention.
The reference numerals are explained below:
1-water and gas distributor; 2-a detachable aerator; 3-an activated charcoal carrier bracket; 4-water outlet groove; 5-a water separator; 6-water inlet pipe; 7-a water inlet; 8-backwashing the water inlet; 9-backwashing the air inlet; 10-a vent; 11-a leg; 12-a water separator; 13-water outlet; 14-backwashing water discharge port; 15-an exhaust port; 16-unloading maintenance pipe; 17-an air line; 18-a discharge aperture; 19-a discharge pipe; 20-a feed main pipe; 21-a dispensing chamber; 22-a distribution manifold; 23-aerator bracket; 24-the outer wall of the central hole of the air non-standard flange; 25-air non-standard flange; 26-standard flange; 27-a threaded joint; 28-air port connection pipe; 29-a removable flange; 30-a feed hopper; 31-a drive device; 32-a transmission; 33-a screening mesh belt; 34-a sewage collection tank; 35-a material receiving bag; 36-a sewage discharge pipe; 37-a dump service valve; 38-a drainage window; 39-water outlet pipe; 40-a groove body; 41-liquid inlet; 42-a microbial inoculum adding port; 43-adding port of culture medium; 44-a return port; 45-a liquid outlet; 46-an alkali liquor feeding port; 47-liquid inlet pump; 48-a cylindrical container housing; 49-feed inlet; 50-a discharge hole; 51-a liquid outlet pump; 52-an air inlet; 53-aeration means; 54-steam jacket; 55-a steam inlet; 56-condensed water discharge port; 57-top vent; 58-baffle; 59-a vent hole; 60-thermometer interface; 61-PH meter interface; 62-dissolved oxygen instrument interface; 63-a viewing port; 64-water through holes; 65-alkalinity analyzer; 66-a reactor shell; 67-first return line; 68-second return line.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The utility model provides an active biochar sewage treatment reaction system, which comprises a biochar reaction subsystem, a specific bacteria fermentation subsystem and an unloading and screening subsystem;
the biochar reaction subsystem comprises a reactor shell, a water distribution and gas distribution device, a detachable aerator, an active biochar carrier support bracket, a water outlet tank, a water separator and a water inlet pipe;
the water and gas distribution device, the detachable aerator, the active biological carbon carrier support bracket and the water outlet tank are sequentially and horizontally arranged in the reactor shell from bottom to top;
a stainless steel screen is laid above the active biochar carrier bracket, a slope is arranged below the active biochar carrier bracket, the lowest point of the slope is the central position below the active biochar carrier bracket, a discharge hole is formed in the central position and connected with a discharge pipe, and the outlet end of the discharge pipe is arranged on the outer side of the reactor shell;
one end of the water inlet pipe is connected with the water distribution and gas distribution device; the port at the other end of the water inlet pipe is simultaneously provided with a water inlet and a backwashing water inlet; the water inlet pipe is also provided with a backwashing air inlet and an emptying port;
the water separator is arranged outside the reactor shell and is connected with the water outlet groove; the upper side and the lower side of the water separator are respectively provided with a water outlet and a backwashing water outlet; the water outlet comprises a sewage discharge port and a specific bacteria discharge port;
an exhaust port is arranged at the top of the outer side of the reactor shell and is connected with a breather valve;
the discharging maintenance pipe of the discharging screening subsystem is connected with the outlet end of the discharging pipe of the biochar reaction subsystem;
a liquid inlet of a dispensing groove of the specific bacteria fermentation subsystem is connected with a specific bacteria discharge port of a water outlet of the biochar reaction subsystem; and a first return pipeline connected with a liquid outlet pump of the specific bacteria fermentation subsystem is connected with a water inlet of the biochar reaction subsystem.
In the utility model, the unloading sieve molecular system is used for realizing the replacement of the active biochar carrier; the specific bacteria fermentation subsystem is used for realizing targeted cultivation of bacteria.
The utility model discloses in, reactor housing outside top is provided with the gas vent, the gas vent is connected with the breather valve, through the breather valve guarantees the charcoal reaction subsystem internal pressure is invariable.
In one example of the use of a magnetic resonance imaging system,
the reactor shell is a cuboid or a cylinder;
the bottom of the outer side of the reactor shell is provided with a supporting leg;
the height of the reactor shell is 5-7m, and the height of the supporting legs is 0.8-1.2 m.
In one example of the use of a magnetic resonance imaging system,
the water distribution and gas distribution device comprises a main feeding pipe, a distribution chamber, a plurality of distribution branch pipes and an aerator bracket;
one end of the water inlet pipe, the feeding main pipe and the distribution chamber are connected in sequence;
the plurality of distribution branch pipes are uniformly distributed on the side wall of the distribution chamber;
the aerator bracket is arranged at the top of the distribution chamber and is arc-shaped;
the distribution chamber is a cylindrical chamber, the diameter is 200-300mm, and the height is 200-350 mm;
the number of the distribution branch pipes is 4-8; the bottom of each of the distribution branch pipes is provided with water distribution and air distribution holes, the hole opening direction of each water distribution and air distribution hole is 45 degrees inclined downwards from the right side or 45 degrees inclined downwards from the left side, the hole opening directions are alternately arranged, the interval between each water distribution and air distribution hole is 50-150mm, and the hole diameter of each water distribution and air distribution hole is phi 3-8 mm.
The utility model discloses in, intake, backwash admit air all pass through the feeding is responsible for the entering the distribution chamber evenly gets into again a plurality of distribution branch pipes.
In one example of the use of a magnetic resonance imaging system,
the detachable aerator comprises a plurality of detachable aeration pipes;
the side walls of the reactor shell corresponding to the plurality of detachable aeration pipes are respectively provided with an air port connecting pipe; each air port connecting pipe is provided with a standard flange; the standard flange is connected with an air non-standard flange; the threaded joint arranged on the inner wall of the central hole of the air nonstandard flange is communicated with a port at one end of the detachable aeration pipe, and the outer wall of the central hole of the air nonstandard flange is communicated with the air pipeline;
the air pipeline is arranged around the reactor shell, and detachable flanges are arranged on the air pipeline close to two ends of each detachable aeration pipe and used for realizing independent detachment and maintenance of each detachable aeration pipe;
the other end of the detachable aerator pipe is fixed through the aerator bracket;
the caliber of the air port connecting pipe is DN100-DN 150;
the outer diameter and the bolt hole size of the air non-standard flange are consistent with those of the standard flange, the outer diameter size is phi 220-285mm, and the bolt hole size is phi 18-22 mm;
the size of the central hole of the air nonstandard flange is consistent with that of the interface of the detachable aeration pipe and is DN32-DN 40.
The utility model discloses in, the aerator bracket is the arc backing plate, as a plurality of terminal fixed facilities that can dismantle the aeration pipe can prevent effectively that the vibration of aeration process from arousing can dismantle aerator interface damage.
In the present invention, the detachable aerator is used for supplying oxygen to the microorganisms on the surface of the activated charcoal. The detachable aerator adopts a detachable form, and the biological carbon reaction subsystem does not need to be emptied and the bottom space of the biological carbon reaction subsystem can be replaced without personnel entering.
In one example of the use of a magnetic resonance imaging system,
the active biological carbon carrier support bracket is a perforated plate carrier support bracket, the aperture of the active biological carbon carrier support bracket is 10-20mm, the hole spacing is 30-50mm, and the height is 1-3 m;
the aperture of the stainless steel screen is selected according to the particle size of the active biochar, and is preferably 1-2 mm;
the gradient of the slope is 1-5%;
the aperture of the discharge hole is 200-300 mm;
the active biochar with the mesopore proportion of more than 50 percent is selected.
In one example of the use of a magnetic resonance imaging system,
the height difference distance between the water outlet groove and the active biochar carrier bracket is 0.5-1.5 m;
the water outlet groove is a cross-shaped or Chinese character feng-shaped groove, a drainage window is arranged on the side wall of the water outlet groove, a material leakage prevention net is laid on the drainage window, and the aperture of the material leakage prevention net is selected according to the particle size of the active biochar and is preferably 1-2 mm; the water outlet groove is provided with a water outlet pipe, and the water outlet groove is connected with the water distributor through the water outlet pipe.
The utility model discloses in, through can evenly receive water go out basin design, realization that can be better the homogeneity of the inside rivers of reactor shell of biological charcoal reaction subsystem avoids short stream. And a drainage window is formed in the side wall of the water outlet groove, and a material leakage prevention net is laid on the drainage window, so that the active biochar in a rolling state can be prevented from entering the backwashing water outlet during backwashing. The drainage window of the water outlet groove can effectively prevent the activated charcoal from being accumulated outside the material leakage prevention net.
In one example, the water separator is a box container or a cylindrical container with a volume of 25-35L.
The utility model discloses in, the reposition of redundant personnel of backwash drainage, play water is realized to the gravity of water knockout drum utilization water, can effectually avoid having the backwash drainage of suspended solid to get into the pipeline of delivery port, leads to a water quality of water to exceed standard.
In one example of the use of a magnetic resonance imaging system,
the water inlet pipe is a U-shaped pipeline; the height of the pipeline of the U-shaped part is 0.6-1.0 m;
the emptying port is arranged on a horizontal pipeline at the bottom of the U-shaped pipeline;
the distance between the backwashing air inlet and the water inlet is 0.2-0.4 m.
In one example of the use of a magnetic resonance imaging system,
the discharging sieve molecular system also comprises a feeding hopper, a driving device, a transmission device, a screening mesh belt, a sewage collecting box, a material collecting bag, a sewage discharge pipe, a discharging overhaul valve and the discharging overhaul pipe; the unloading maintenance pipe, the unloading maintenance valve and the feeding hopper are connected in sequence; the driving device drives the transmission device to rotate, and the screening mesh belt rotates clockwise along with the rotation of the transmission device; the screening mesh belt is arranged below the feeding hopper, and the water inlet side of the sewage collecting tank is correspondingly arranged below the screening mesh belt; the material receiving bag is arranged on one side of the sewage collecting box corresponding to the clockwise running tail end of the screening mesh belt; the sewage discharge pipe is arranged at the bottom of the sewage collecting box;
the aperture of the screening mesh belt is 1-2mm, and the length-width ratio is 6-8: 1.
The utility model discloses in, work as when the active biological charcoal in the biological charcoal reaction subsystem need be changed, open the service valve of unloading, the static pressure of utilization water will this moment active biological charcoal together discharges with water, gets into the screening subsystem of unloading.
The utility model discloses in the discharge sieve molecular system, through drive arrangement with the separation of active biological charcoal and water is realized to the screening effect of screening guipure. And the drained active biochar is conveyed into the material receiving bag through the screening mesh belt with the conveying function. And sewage discharged by the screening mesh belt goes to the sewage collecting box.
In one example of the use of a magnetic resonance imaging system,
the specific bacteria fermentation subsystem comprises a fermentation tank and the dispensing tank;
the dispensing tank comprises a tank body, a microbial inoculum adding port, a culture medium adding port, an alkali liquor adding port, a backflow port, a liquid outlet and the liquid inlet; the microbial inoculum adding port, the culture medium adding port, the alkali liquor adding port and the backflow port are all arranged at the upper part of the tank body; the liquid outlet and the liquid inlet are arranged on the side wall of the groove body;
the fermentation tank comprises a cylindrical container shell, a feeding hole, a discharging hole, a baffling baffle, an aeration device, a top exhaust hole, a thermometer interface, a PH meter interface, a dissolved oxygen meter interface and an observation hole; the baffling baffle is arranged in the cylindrical container shell and forms a water passing hole and an air vent with the bottom and the top of the cylindrical container shell respectively; a steam jacket is sleeved outside the cylindrical container shell, and a steam inlet and a condensed water outlet are formed in the steam jacket; the aeration device is arranged above the water through hole in the cylindrical container shell and is connected with an air inlet arranged on the outer side of the steam jacket; the top exhaust port, the thermometer interface, the PH meter interface and the dissolved oxygen meter interface are all arranged at the top of the outer side of the cylindrical container shell; the observation port is arranged on the outer side wall of the cylindrical container shell; the feed inlet and the discharge outlet are both arranged on the side wall of the upper part of the cylindrical container shell; the thermometer interface, the PH meter interface and the dissolved oxygen instrument interface are respectively provided with a temperature transmitter, a pH on-line analyzer and a dissolved oxygen instrument;
the liquid outlet of the dispensing tank, the liquid inlet pump and the feed inlet of the fermentation tank are sequentially connected;
the discharge hole of the fermentation tank, the liquid outlet pump and the alkalinity analyzer are sequentially connected, and a second return pipeline connected with the liquid outlet pump is connected with a return port of the dosing tank;
the height of the water passing hole is 200-300 mm;
the height of the vent hole is 100-200 mm;
the aeration device is a microporous aeration disc.
The utility model discloses in, the fermentation cylinder feeding is followed the feed inlet gets into, flows under to from last earlier, warp flow from bottom to top behind the water hole, finally warp the discharge gate output.
The utility model discloses in:
and the outlet of the liquid outlet pump is provided with the alkalinity analyzer. When the alkalinity of the effluent pump is lower than an alkalinity set value, the effluent of the fermentation tank is qualified, and the effluent of the fermentation tank goes to a water inlet of the biochar reaction subsystem; and when the alkalinity of the effluent pump is higher than the alkalinity set value, the effluent of the fermentation tank is unqualified, and the effluent of the fermentation tank flows back to the liquid mixing tank through a second return pipeline. The alkalinity set value is determined according to the actual sewage quality condition of the system.
And according to the temperature transmitter, when the temperature in the fermentation tank is lower than a temperature set value, opening a valve of the steam inlet. And when the temperature in the fermentation tank is higher than a set temperature value, closing the valve of the steam inlet. The temperature set point is 25-35 ℃.
According to the pH on-line analyzer, when the pH value in the fermentation tank is higher than a pH set value, a valve of an alkali liquor feeding port of the dispensing tank is opened, and when the pH value in the fermentation tank is lower than the pH set value, the valve of the alkali liquor feeding port of the dispensing tank is closed. The pH set value is 7-9.
According to the dissolved oxygen instrument, when the dissolved oxygen in the fermentation tank is lower than a dissolved oxygen set value, the valve of the air inlet is opened, and when the dissolved oxygen in the fermentation tank is higher than the dissolved oxygen set value, the valve of the air inlet is closed. The set value of the dissolved oxygen is 5-6 mg/L.
Through the arrangement of the alkalinity analyzer, the temperature transmitter, the pH on-line analyzer and the dissolved oxygen meter, the unattended and full-automatic operation of the specific bacteria fermentation subsystem is realized.
The present invention will be described in detail with reference to examples.
Example 1
The embodiment provides an activated biochar sewage treatment reaction system, as shown in fig. 1-9, the system comprises a biochar reaction subsystem, a specific bacteria fermentation subsystem and a discharging and screening subsystem;
the biochar reaction subsystem comprises a reactor shell 66, a water and gas distributor 1, a detachable aerator 2, an active biochar carrier support bracket 3, a water outlet tank 4, a water separator 5 and a water inlet pipe 6;
the water and gas distribution device 1, the detachable aerator 2, the active biological carbon carrier support bracket 3 and the water outlet tank 4 are sequentially and horizontally arranged in the reactor shell 66 from bottom to top;
the reactor housing 66 is cylindrical; the bottom of the outer side of the reactor shell 66 is provided with supporting legs 11; the height of the reactor shell 66 is 7m and the height of the legs 11 is 0.8 m.
The water distribution and gas distribution device 1 comprises a main feeding pipe 20, a distribution chamber 21, eight distribution branch pipes 22 and an aerator bracket 23; one end of the water inlet pipe 6, the feeding main pipe 20 and the distribution chamber 21 are connected in sequence; the eight distribution branch pipes 22 are uniformly distributed on the side wall of the distribution chamber 21; the aerator bracket 23 is arranged at the top of the distribution chamber 21 and is arc-shaped; the distribution chamber 21 is a cylindrical chamber with the diameter of 300mm and the height of 350 mm; the bottom of each of the eight distribution branch pipes 22 is provided with water distribution and air distribution holes, the hole opening direction of each water distribution and air distribution hole is 45 degrees inclined downwards from the right side or 45 degrees inclined downwards from the left side, the hole opening directions are alternately arranged, the interval between each water distribution and air distribution hole is 100mm, and the hole diameter of each water distribution and air distribution hole is phi 6 mm.
The detachable aerator 2 comprises eight detachable aeration pipes;
the side walls of the reactor shell 66 corresponding to the eight detachable aeration pipes are respectively provided with an air port connecting pipe 28; each air port adapter 28 is fitted with a standard flange 26; the standard flange 26 is connected with an air non-standard flange 25; a threaded joint 27 arranged on the inner wall of a central hole of the air non-standard flange 25 is communicated with a port at one end of the detachable aeration pipe, and the outer wall 24 of the central hole of the air non-standard flange is communicated with the air pipeline 17;
the air pipeline 17 is arranged around the reactor shell 66, and detachable flanges 29 are arranged on the air pipeline 17 close to two ends of each detachable aeration pipe and used for realizing independent detachment and maintenance of each detachable aeration pipe;
the other end of the detachable aerator pipe is fixed through the aerator bracket 23;
the caliber of the air port connecting pipe 28 is DN 100;
the outer diameter and the bolt hole size of the air non-standard flange 25 are consistent with those of the standard flange 26, the outer diameter size is phi 220mm, and the bolt hole size is phi 18 mm;
the size of the central hole of the air non-standard flange 25 is consistent with that of the interface of the detachable aeration pipe and is DN 32.
A stainless steel screen mesh (not shown) is laid above the active biochar carrier support bracket 3, a slope is arranged below the active biochar carrier support bracket 3, the lowest point of the slope is the central position below the active biochar carrier support bracket, a discharge hole 18 is arranged at the central position, the discharge hole 18 is connected with a discharge pipe 19, and the outlet end of the discharge pipe 19 is arranged on the outer side of the reactor shell 66;
the active biological carbon carrier support bracket 3 is a perforated plate carrier support bracket, the aperture of the active biological carbon carrier support bracket 3 is 10mm, the hole spacing is 30mm, and the height is 3 m;
the aperture of the stainless steel screen is 2 mm;
the gradient of the slope is 3%;
the aperture of the discharge hole 18 is 300 mm;
the active biochar with a mesopore proportion of 55 percent is selected.
The height difference distance between the water outlet groove 4 and the active biochar carrier bracket 3 is 1 m; the water outlet groove 4 is a cross-shaped groove, the side wall of the water outlet groove 4 is provided with a drainage window 38, the drainage window 38 is coated with a material leakage prevention net (not shown), and the aperture of the material leakage prevention net is 2 mm; the water outlet groove 4 is provided with a water outlet pipe 39, and the water outlet groove 4 is connected with the water separator 12 through the water outlet pipe 39.
One end of the water inlet pipe 6 is connected with the water and gas distribution device 1; a water inlet 7 and a backwashing water inlet 8 are simultaneously arranged at the port of the other end of the water inlet pipe 6;
the water inlet pipe 6 is a U-shaped pipeline; the height of the pipeline of the U-shaped part is 1.0 m;
the vent 10 is arranged on a horizontal pipeline at the bottom of the U-shaped pipeline;
the distance between the backwash air inlet 9 and the water inlet 7 and the backwash water inlet 8 is 0.2 m.
The water separator 12 is arranged outside the reactor shell 66 and is connected with the water outlet tank 4; the upper side and the lower side of the water separator 12 are respectively provided with a water outlet 13 and a backwashing water outlet 14; the water outlet 13 includes a sewage discharge port (not shown) and a specific bacteria discharge port (not shown); the water separator 12 is a cylindrical container with a volume of 35L.
An exhaust port 15 is arranged at the top of the outer side of the reactor shell 66, and a breather valve (not shown) is connected to the exhaust port 15;
a discharge overhaul pipe 16 of the discharge sieve molecular system is connected with the outlet end of the discharge pipe 19 of the biochar reaction subsystem;
a liquid inlet 41 of a dispensing tank of the specific bacteria fermentation subsystem is connected with a specific bacteria discharge port (not shown) of a water outlet 13 of the biochar reaction subsystem; and a first return pipeline 67 connected with the liquid outlet pump 51 of the specific bacteria fermentation subsystem is connected with the water inlet 7 of the biochar reaction subsystem.
The discharging screening subsystem further comprises a feeding hopper 30, a driving device 31, a transmission device 32, a screening mesh belt 33, a sewage collecting box 34, a receiving bag 35, a sewage discharge pipe 36, a discharging maintenance valve 37 and the discharging maintenance pipe 16; the unloading maintenance pipe 16, the unloading maintenance valve 37 and the feeding hopper 30 are connected in sequence; the driving device 31 drives the transmission device 32 to rotate, and the screening mesh belt 33 runs clockwise along with the rotation of the transmission device 32; the screening mesh belt 33 is arranged below the feeding hopper 30, and the water inlet side of the sewage collection tank 34 is correspondingly arranged below the screening mesh belt 33; the material receiving bag 35 is arranged on one side of the sewage collecting box 34 corresponding to the clockwise running tail end of the screening mesh belt 33; the sewage discharge pipe 36 is disposed at the bottom of the sewage collection tank 34;
the aperture of the screening mesh belt 33 is 2mm, and the length-width ratio is 8: 1.
The specific bacteria fermentation subsystem comprises a fermentation tank and the dispensing tank;
the dispensing tank comprises a tank body 40, a microbial inoculum adding port 42, a culture medium adding port 43, an alkali liquor adding port 46, a reflux port 44, a liquid outlet 45 and the liquid inlet 41; the microbial inoculum adding port 42, the culture medium adding port 43, the alkali liquor adding port 46 and the return port 44 are all arranged at the upper part of the tank body 40; the liquid outlet 45 and the liquid inlet 41 are arranged on the side wall of the groove body 40;
the fermentation tank comprises a cylindrical container shell 48, a feeding hole 49, a discharging hole 50, a baffling baffle 58, an aeration device 53, a top exhaust port 57, a thermometer interface 60, a PH meter interface 61, a dissolved oxygen meter interface 62 and an observation hole 63; the baffle plate 58 is arranged inside the cylindrical container shell 48 and forms a water through hole 64 and a vent hole 59 with the bottom and the top of the cylindrical container shell 48 respectively; a steam jacket 54 is sleeved outside the cylindrical container shell 48, and a steam inlet 55 and a condensed water outlet 56 are arranged on the steam jacket 54; the aeration device 53 is arranged above the water through hole 64 in the cylindrical container shell 48 and is connected with the air inlet 52 arranged outside the steam jacket 54; the top exhaust port 57, the thermometer interface 60, the PH meter interface 61 and the dissolved oxygen meter interface 62 are all arranged at the top of the outer side of the cylindrical container shell 48; the viewing port 63 is provided on the outer side wall of the cylindrical container case 48; the feed inlet 49 and the discharge outlet 50 are both arranged on the upper side wall of the cylindrical container shell 48; the thermometer interface 60, the PH meter interface 61 and the dissolved oxygen meter interface 62 are respectively provided with a temperature transmitter (not shown), a pH on-line analyzer (not shown) and a dissolved oxygen meter (not shown);
a liquid outlet 45 of the dispensing groove, a liquid inlet pump 47 and a feed inlet 49 of the fermentation tank are connected in sequence;
the discharge hole 50 of the fermentation tank, the liquid outlet pump 51 and the alkalinity analyzer 65 are sequentially connected, and a second return pipeline 68 connected with the liquid outlet pump 51 is connected with the return port 44 of the dosing tank;
the height of the water through holes 64 is 300 mm;
the height of the vent hole 59 is 200 mm;
the aeration device 53 is a microporous aeration disc.
Example 2
In this embodiment, the activated charcoal sewage treatment reaction system described in embodiment 1 is used to treat the first-stage biochemical effluent (COD is 82.7mg/L, NH) of a sewage treatment plant in an industrial park3-N is 4.32mg/L, PH is 6-9), the primary biochemical effluent is lifted to the biochar reaction subsystem of the activated biochar sewage treatment reaction system by a lift pump, the PH of the solution in the biochar reaction subsystem is 7-9, the temperature is 25-35 ℃, and the gas-water ratio in the reactor shell 66 of the biochar reaction subsystem is 3: 1, the contact residence time of the primary biochemical effluent and the active biocharIs 1.5 h.
The configured strains of the specific strain fermentation subsystem are as follows: benzene bacillus and nitrifying bacteria. The pH value in the fermentation tank is 7-9, the temperature is 25-35 ℃, the dissolved oxygen is 5-6mg/L, and the alkalinity of the liquid outlet of the fermentation tank going to the water inlet 7 of the biochar reaction subsystem is 105.2 mg/L.
The water quality of primary biochemical effluent of the industrial park sewage treatment field, the water quality of effluent treated by the activated biochar sewage treatment reaction system and the removal rate are shown in table 1. The result shows that after the activated biochar sewage treatment reaction system is used for treatment, the COD concentration in the primary biochemical effluent can reach 17.5mg/L, the ammonia nitrogen concentration can reach 0.16mg/L, and the effluent reaches and is superior to IV-type discharge standards of surface water environment quality standard (GB 3838-2002).
TABLE 1
While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. An active biochar sewage treatment reaction system is characterized by comprising a biochar reaction subsystem, a specific bacteria fermentation subsystem and a discharging and screening subsystem;
the biochar reaction subsystem comprises a reactor shell, a water distribution and gas distribution device, a detachable aerator, an active biochar carrier support bracket, a water outlet tank, a water separator and a water inlet pipe;
the water and gas distribution device, the detachable aerator, the active biological carbon carrier support bracket and the water outlet tank are sequentially and horizontally arranged in the reactor shell from bottom to top;
a stainless steel screen is laid above the active biochar carrier bracket, a slope is arranged below the active biochar carrier bracket, the lowest point of the slope is the central position below the active biochar carrier bracket, a discharge hole is formed in the central position and connected with a discharge pipe, and the outlet end of the discharge pipe is arranged on the outer side of the reactor shell;
one end of the water inlet pipe is connected with the water distribution and gas distribution device; the port at the other end of the water inlet pipe is simultaneously provided with a water inlet and a backwashing water inlet; the water inlet pipe is also provided with a backwashing air inlet and an emptying port;
the water separator is arranged outside the reactor shell and is connected with the water outlet groove; the upper side and the lower side of the water separator are respectively provided with a water outlet and a backwashing water outlet; the water outlet comprises a sewage discharge port and a specific bacteria discharge port;
an exhaust port is arranged at the top of the outer side of the reactor shell and is connected with a breather valve;
the discharging maintenance pipe of the discharging screening subsystem is connected with the outlet end of the discharging pipe of the biochar reaction subsystem;
a liquid inlet of a dispensing groove of the specific bacteria fermentation subsystem is connected with a specific bacteria discharge port of a water outlet of the biochar reaction subsystem; and a first return pipeline connected with a liquid outlet pump of the specific bacteria fermentation subsystem is connected with a water inlet of the biochar reaction subsystem.
2. The activated biochar sewage treatment reaction system as recited in claim 1,
the reactor shell is a cuboid or a cylinder;
the bottom of the outer side of the reactor shell is provided with a supporting leg;
the height of the reactor shell is 5-7m, and the height of the supporting legs is 0.8-1.2 m.
3. The activated biochar sewage treatment reaction system as recited in claim 1,
the water distribution and gas distribution device comprises a main feeding pipe, a distribution chamber, a plurality of distribution branch pipes and an aerator bracket;
one end of the water inlet pipe, the feeding main pipe and the distribution chamber are connected in sequence;
the plurality of distribution branch pipes are uniformly distributed on the side wall of the distribution chamber;
the aerator bracket is arranged at the top of the distribution chamber and is arc-shaped;
the distribution chamber is a cylindrical chamber, the diameter is 200-300mm, and the height is 200-350 mm;
the number of the distribution branch pipes is 4-8; the bottom of each of the distribution branch pipes is provided with water distribution and air distribution holes, the hole opening direction of each water distribution and air distribution hole is 45 degrees inclined downwards from the right side or 45 degrees inclined downwards from the left side, the hole opening directions are alternately arranged, the interval between each water distribution and air distribution hole is 50-150mm, and the hole diameter of each water distribution and air distribution hole is phi 3-8 mm.
4. The activated biochar sewage treatment reaction system as recited in claim 3,
the detachable aerator comprises a plurality of detachable aeration pipes;
the side walls of the reactor shell corresponding to the plurality of detachable aeration pipes are respectively provided with an air port connecting pipe; each air port connecting pipe is provided with a standard flange; the standard flange is connected with an air non-standard flange; the threaded joint arranged on the inner wall of the central hole of the air nonstandard flange is communicated with a port at one end of the detachable aeration pipe, and the outer wall of the central hole of the air nonstandard flange is communicated with an air pipeline;
the air pipeline is arranged around the reactor shell, and detachable flanges are arranged on the air pipeline close to two ends of each detachable aeration pipe and used for realizing independent detachment and maintenance of each detachable aeration pipe;
the other end of the detachable aerator pipe is fixed through the aerator bracket;
the caliber of the air port connecting pipe is DN100-DN 150;
the outer diameter and the bolt hole size of the air non-standard flange are consistent with those of the standard flange, the outer diameter size is phi 220-285mm, and the bolt hole size is phi 18-22 mm;
the size of the central hole of the air nonstandard flange is consistent with that of the interface of the detachable aeration pipe and is DN32-DN 40.
5. The activated biochar sewage treatment reaction system as recited in claim 1,
the active biological carbon carrier support bracket is a perforated plate carrier support bracket, the aperture of the active biological carbon carrier support bracket is 10-20mm, the hole spacing is 30-50mm, and the height is 1-3 m;
the aperture of the stainless steel screen is 1-2 mm;
the gradient of the slope is 1-5%;
the aperture of the discharge hole is 200-300 mm;
the active biochar with the mesopore proportion of more than 50 percent is selected.
6. The activated biochar sewage treatment reaction system as recited in claim 1,
the height difference distance between the water outlet groove and the active biochar carrier bracket is 0.5-1.5 m;
the water outlet groove is a cross-shaped or Chinese character feng-shaped groove, a drainage window is arranged on the side wall of the water outlet groove, a material leakage prevention net is laid on the drainage window, and the aperture of the material leakage prevention net is 1-2 mm; the water outlet groove is provided with a water outlet pipe, and the water outlet groove is connected with the water distributor through the water outlet pipe.
7. The activated biochar sewage treatment reaction system as recited in claim 1, wherein the water separator is a box container or a cylindrical container, and the volume is 25-35L.
8. The activated biochar sewage treatment reaction system as recited in claim 1,
the water inlet pipe is a U-shaped pipeline; the height of the pipeline of the U-shaped part is 0.6-1.0 m;
the emptying port is arranged on a horizontal pipeline at the bottom of the U-shaped pipeline;
the distance between the backwashing air inlet and the water inlet is 0.2-0.4 m.
9. The activated biochar sewage treatment reaction system as recited in claim 1,
the discharging sieve molecular system also comprises a feeding hopper, a driving device, a transmission device, a screening mesh belt, a sewage collecting box, a material collecting bag, a sewage discharge pipe, a discharging overhaul valve and the discharging overhaul pipe; the unloading maintenance pipe, the unloading maintenance valve and the feeding hopper are connected in sequence; the driving device drives the transmission device to rotate, and the screening mesh belt rotates clockwise along with the rotation of the transmission device; the screening mesh belt is arranged below the feeding hopper, and the water inlet side of the sewage collecting tank is correspondingly arranged below the screening mesh belt; the material receiving bag is arranged on one side of the sewage collecting box corresponding to the clockwise running tail end of the screening mesh belt; the sewage discharge pipe is arranged at the bottom of the sewage collecting box;
the aperture of the screening mesh belt is 1-2mm, and the length-width ratio is 6-8: 1.
10. The activated biochar sewage treatment reaction system as recited in claim 1,
the specific bacteria fermentation subsystem comprises a fermentation tank and the dispensing tank;
the dispensing tank comprises a tank body, a microbial inoculum adding port, a culture medium adding port, an alkali liquor adding port, a backflow port, a liquid outlet and the liquid inlet; the microbial inoculum adding port, the culture medium adding port, the alkali liquor adding port and the backflow port are all arranged at the upper part of the tank body; the liquid outlet and the liquid inlet are arranged on the side wall of the groove body;
the fermentation tank comprises a cylindrical container shell, a feeding hole, a discharging hole, a baffling baffle, an aeration device, a top exhaust hole, a thermometer interface, a PH meter interface, a dissolved oxygen meter interface and an observation hole; the baffling baffle is arranged in the cylindrical container shell and forms a water passing hole and an air vent with the bottom and the top of the cylindrical container shell respectively; a steam jacket is sleeved outside the cylindrical container shell, and a steam inlet and a condensed water outlet are formed in the steam jacket; the aeration device is arranged above the water through hole in the cylindrical container shell and is connected with an air inlet arranged on the outer side of the steam jacket; the top exhaust port, the thermometer interface, the PH meter interface and the dissolved oxygen meter interface are all arranged at the top of the outer side of the cylindrical container shell; the observation port is arranged on the outer side wall of the cylindrical container shell; the feed inlet and the discharge outlet are both arranged on the side wall of the upper part of the cylindrical container shell; the thermometer interface, the PH meter interface and the dissolved oxygen instrument interface are respectively provided with a temperature transmitter, a pH on-line analyzer and a dissolved oxygen instrument;
the liquid outlet of the dispensing tank, the liquid inlet pump and the feed inlet of the fermentation tank are sequentially connected;
the discharge hole of the fermentation tank, the liquid outlet pump and the alkalinity analyzer are sequentially connected, and a second return pipeline connected with the liquid outlet pump is connected with a return port of the dosing tank;
the height of the water passing hole is 200-300 mm;
the height of the vent hole is 100-200 mm;
the aeration device is a microporous aeration disc.
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Effective date of registration: 20210727 Address after: 065201 east of Yingbin South Road and north of nanheng Third Road, Yanjiao Development Zone, Sanhe City, Langfang City, Hebei Province 0703 Patentee after: Shannuo environmental technology Hebei Co.,Ltd. Address before: 102200 704, 7 / F, Building 29, ruiqijiayuan, Changping District, Beijing Patentee before: Beijing shannuo Shuiyuan Environmental Technology Co.,Ltd. |