CN110776137B - Energy-efficient utilize biological charcoal treatment sewage device - Google Patents

Abstract

The invention discloses a high-efficiency energy-saving sewage treatment device by using biological carbon, which mainly comprises: first settling tower, second settling tower, disinfect box and backwash box, first settling tower includes: scrape mud mechanism, filter sieve and impurity wiper mechanism, the second precipitation tower includes: adsorption tube, the second bull stick that is used for stirring and impels the waste material and install the waste bin in second precipitation tower bottom, install a plurality of fan blades that advance on the second bull stick, the second precipitation tower with be linked together through the baffle of seting up in second precipitation tower bottom between the waste bin, the adsorption tube is the bow-shaped pipeline that the horizontal pipe that the multirow communicates through the U-shaped pipe closes, the disinfect box includes: the sewage treatment device is high in sewage treatment efficiency, low in cost and suitable for wide popularization.

Description

A high-efficiency and energy-saving sewage treatment device using biochar

technical field

The invention relates to the technical field of sewage biological treatment, in particular to a high-efficiency and energy-saving device for treating sewage by utilizing biological charcoal.

Background technique

Sewage treatment is the process of purifying sewage to meet the water quality requirements for discharge into a water body or for reuse. Sewage treatment is widely used in construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering and other fields, and is increasingly entering the daily life of ordinary people.

There are many ways to treat sewage. At present, the most widely used is the biological adsorption method, which has high adsorption and decontamination efficiency and is widely used. However, most of the current biological adsorption methods rely on the adsorption of biochar for adsorption, but most of the biochar is not recycled. Moreover, it is directly put into the sedimentation tank for precipitation, and its adsorption efficiency is too low, and it cannot ensure that the suspended solids in the water can be quickly adsorbed and precipitated, resulting in increased costs and low adsorption efficiency.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention provides a high-efficiency and energy-saving device for treating sewage by utilizing biochar.

The technical points of the present invention are:

A high-efficiency and energy-saving sewage treatment device using biochar, mainly includes: a first sedimentation tower, a second sedimentation tower, a disinfection tank and a backwash tank, and the second sedimentation tower, the first sedimentation tower, the disinfection tank and the The backwashing tank is connected, and a control valve is provided at the communication place between the second precipitation tower and the first precipitation tower;

The first sedimentation tower includes: a mud scraping mechanism installed at the bottom, a filter screen for filtering larger impurities, and an impurity cleaning mechanism fixed at the top of the first sedimentation tower for washing the filter screen. The bottom of the sedimentation tower is provided with a mud discharge pipe;

The second precipitation tower comprises: a feed pipe opened at the top thereof, an adsorption pipe used for adsorbing suspended matter in water, a second rotating rod installed at the bottom of the second precipitation tower horizontally for stirring and propelling waste, and A waste box installed at the bottom of the second sedimentation tower, a plurality of progressive fan blades are installed on the second rotating rod, and the second sedimentation tower and the waste box are opened at the bottom of the second sedimentation tower The baffles are connected to each other, the adsorption pipe is an arcuate pipe composed of multiple rows of horizontal pipes connected by a U-shaped pipe, a multi-layer biological carbon layer is arranged inside the adsorption pipe, and the U-shaped pipe at the corner of the adsorption pipe The pipe is connected with the horizontal pipe through the screw ring;

The sterilization box includes: a plurality of sterilization rods arranged on the top and bottom of the sterilization box and a water outlet pipe opened on the side;

The backwash tank includes: a water pump for injecting cleaning liquid into the adsorption pipe, an air pump for injecting gas into the adsorption pipe, and a first power source for supplying power to the water pump and the air pump.

Further, the impurity cleaning mechanism includes an electric telescopic tube installed on the top of the first precipitation tower, a rotating shaft installed at the other end of the electric telescopic tube, two support arms installed on the rotating shaft, and two support arms installed on the support. The brush head on the arm prevents large debris from clogging the filter screen and affecting the water inlet speed.

Further, the tops of the first precipitation tower, the second precipitation tower and the sterilization box are all provided with inspection doors, which are convenient for later maintenance and refueling.

Further, the progressive fan blade is provided with a hollow layer for passing water and a filter screen layer for filtering the biochar on the hollow layer, so that the water and the biochar are separated to facilitate the collection of wastes. .

Further, the communication pipe between the disinfection tank and the second precipitation tower is a fiber water purification pipe, and further adsorption makes the suspended matter in the water stay in the second precipitation tower.

Further, a solenoid valve is provided where the air pump and the water pump communicate with the adsorption pipe.

Further, the sterilizing rod is connected to the sterilizing box through threads, and can be disassembled and replaced.

Further, the mud scraping mechanism includes a first rotating rod and a plurality of scrapers arranged on the first rotating rod, and the outer end of each scraper is provided with a rubber pad to prevent the inner wall of the sedimentation tower from being scratched. .

Compared with the prior art, the beneficial effects of the present invention are:

First, by setting the impurity cleaning mechanism to speed up the water inflow rate, the risk of the filter screen being blocked by large impurities is prevented, and the sludge that sinks at the bottom and adheres to the inner wall is promptly discharged by setting the sludge scraping mechanism to prevent the sludge from sinking more and more. , occupying too much precipitation space and affecting the water purification efficiency.

Second, by setting an arcuate adsorption tube and setting up a multi-layer adsorption biochar mesh membrane in the adsorption tube, the contact area and contact opportunity between the suspended solids in the water and the biochar are expanded to a greater extent, and the adsorption efficiency is improved. The adsorption of suspended solids gradually reduces the adsorption pressure, and the biochar filled with suspended solids finally settles at the bottom of the second sedimentation tower, and the waste is collected in the waste box by setting the progressive fan blade and the second rotating rod Recycling to reduce adsorption costs.

Third, by setting the fiber water purification pipe between the second sedimentation tower and the disinfection box, the water quality entering the disinfection box is better, and the disinfection rods are arranged at the top and bottom of the disinfection box, which increases the contact between the water and the disinfection rod Opportunities and extended disinfection time to make disinfection more thorough.

Fourth, by setting up a backwash box to backwash the adsorption tube, it is more cost-effective, and the backwash method that combines air flushing backwashing and water flushing backwashing prevents the waste of water resources and has better backwashing effect. , more energy efficient.

Description of drawings

Fig. 1 is the front view of the internal structure schematic diagram of the present invention;

Fig. 2 is the structural representation of the impurity cleaning mechanism of the present invention;

Fig. 3 is the schematic diagram of the U-shaped pipe structure of the adsorption pipe of the present invention;

Fig. 4 is the progressive fan blade structure schematic diagram of the present invention;

Among them, 1. The first sedimentation tower, 11, the water inlet pipe, 12, the impurity cleaning mechanism, 121, the electric telescopic pipe, 122, the support arm, 123, the rotating shaft, 124, the brush head, 13, the filter screen, 14, the scraping mechanism , 141, the first rotary rod, 412, the scraper, 15, the mud pipe, 2, the second sedimentation tower, 21, the adsorption tube, 211, the biochar layer, 212, the screw ring, 22, the second rotary rod, 23 , progressive fan blade, 231, filter screen layer, 232, hollow layer, 24, baffle plate, 25, waste box, 26, feed pipe, 3, disinfection box, 31, disinfection rod, 32, inspection door, 33, Outlet pipe, 4, backwash tank, 41, first power supply, 42, water pump, 43, air pump, 5, motor, 51, second power supply, 6, control valve, 7, fiber water purification pipe, 8, solenoid valve.

Detailed ways

Example:

A high-efficiency and energy-saving sewage treatment device using biochar, mainly includes: a first sedimentation tower 1, a second sedimentation tower 2, a disinfection tank 3 and a backwash tank 4, and the second sedimentation tower 2 and the first sedimentation tower 2 and the first sedimentation tower. The tower 1, the disinfection tank 3 and the backwash tank 4 are communicated with each other, and the second precipitation tower 2 and the first precipitation tower 1 are connected with a control valve 6;

The first sedimentation tower 1 includes: a sludge scraping mechanism 14 installed at the bottom, a filter screen 13 installed in the middle of the first sedimentation tower 1, and impurities fixed on the top of the first sedimentation tower 1 for washing the filter screen 13 The cleaning mechanism 12, the bottom of the first sedimentation tower 1 is provided with a mud outlet pipe 15, and the filter screen 13 is a convex screen with grooves at both ends;

The second precipitation tower 2 includes: a feed pipe 26 opened at the top thereof, an adsorption pipe 21 for adsorbing suspended solids in water, a second precipitation tower installed at the bottom of the second precipitation tower 2 in horizontal rotation for stirring and propelling waste. Two rotating rods 22 and a waste box 25 installed at the bottom of the second settling tower 2 , a plurality of progressive fan blades 23 are installed on the second rotating rod 22 , the second settling tower 2 and the waste container 25 are communicated through the baffle plate 24 opened at the bottom of the second precipitation tower 2, the adsorption tube 21 is an arcuate pipeline composed of multiple rows of horizontal tubes connected by a U-shaped tube, and multiple layers are arranged inside the adsorption tube 21. The biological carbon layer 211, the U-shaped pipe at the corner of the adsorption pipe 21 is communicated with the horizontal pipe through the screw ring 212, and the water inlet of the adsorption pipe 21 is communicated with the first precipitation tower 1 and the second precipitation tower 2 want to connect

Described sterilization box 3 comprises: three sterilization rods 31 staggered up and down on its top and bottom and water outlet pipes 33 opened on the side;

The backwash tank 4 includes: a water pump 42 for injecting cleaning liquid into the adsorption pipe 21 , an air pump 43 for injecting gas into the adsorption pipe 21 , and a first power supply for supplying power to the water pump 42 and the air pump 43 41, the water pump 42 and the air pump 43 are communicated with the water outlet of the adsorption tube 21. During backflushing, this embodiment adopts the method of combined gas and water backflushing, which is better than water backflushing alone, and can save water consumption, First scrub with high-intensity air, and then rinse with micro-expanding water. The air impulse intensity is 8L/(m ² ·s), the flushing time is 5 minutes, and the water impulse intensity is 6L/(m ² ·s), and the duration is 3 minutes.

The impurity cleaning mechanism 12 includes an electric telescopic tube 121 installed on the top of the first precipitation tower, a rotating shaft 123 installed at the other end of the electric telescopic tube 121, two support arms 122 installed on the rotating shaft 123 and The brush head 124 on the support arm 122 and the electric telescopic tube 121 are connected to an external power supply and controlled by a remote control.

The tops of the first precipitation tower 1 , the second precipitation tower 2 and the disinfection box 3 are all provided with access doors 32 .

The progressive fan blade 23 is provided with a hollow layer 232 for passing water and a filter screen layer 231 on the hollow layer 232 for filtering biochar.

The communication pipe between the sterilization box 3 and the second precipitation tower 2 is a fiber water purification pipe 7, and the outer shell of the fiber water purification pipe 7 is curved and a plurality of adsorption fibers matching the shape of the shell are arranged inside.

A solenoid valve 8 is provided where the air pump 43 and the water pump 42 communicate with the adsorption pipe 21 .

A section of the sterilizing rod 31 is provided with threads and is connected to the sterilizing box 3 through threads, which can be disassembled and replaced.

The mud scraping mechanism 14 includes a first rotating rod 141 and two scrapers 142 arranged on the first rotating rod 141 and each scraper 142 is provided with a rubber pad at the outer end.

The first rotating rod 141 and the second rotating rod 22 are both provided with a motor 5 for providing power, and the two motors 5 work through the second power source 51 .

The sewage treatment efficiency of this equipment is high, and the waste can be recycled through the waste box.

In this example, the biochar adsorption treatment was carried out for the lake sewage, and the following data were obtained as shown in Table 1:

Table 1: Data comparison table of biochar treatment of lake sewage

Particulate matter content ionic substance content Humic acid content Residual drug content Before processing 45% 6% 8% 5% Handling of existing equipment 12% 5% 4% 3% This device handles 5% 3% 3% 2%

Using method of the present invention:

The sewage enters the first sedimentation tower 1 through the water inlet pipe 11, and the large impurities are filtered out through the filter screen 13. After the electric telescopic pipe 121 is extended downward, the two support arms 122 are moved to both sides, and the brush head 124 brushes off the filter. The impurities on the net 13 enter the grooves at both ends, open the scraping mechanism 14 to scrape off the dirt on the inner wall of the first precipitation tower 1, and the clean water in the upper part enters the adsorption pipe 21 in the second precipitation tower 2 through the communication pipe for adsorption, The adsorbed water flows into the tower box of the second precipitation tower 2, and after adsorption by the biochar in the tower box, the suspended matter is deposited at the bottom of the tower, and the motor is turned on to rotate the second rotating rod 22, so that the progressive fan blades 23 will be filled with suspension. The biochar of the waste material is collected into the waste box 25, which is convenient for recycling. The water in the second precipitation tower 2 enters the disinfection box 3 after being adsorbed by the adsorption fibers in the water pipe 7, and is sterilized by the disinfection rods 31 arranged at high and low levels. The latter water flows out through the water outlet pipe 33 .

When backwashing, firstly unscrew the control valve 6, so that the sewage obtained after backwashing can be discharged from the equipment, then open the solenoid valve 8, first turn on the air pump 43, and the suspended matter adsorbed on the biochar falls off by the strong pressure air flushing backwashing, The water pump 42 is turned on again, and the suspended solids are flushed out of the equipment through high-pressure water flushing and backwashing.

Claims (8)

1. The utility model provides an energy-efficient utilize biological charcoal treatment sewage device which characterized in that mainly includes: the device comprises a first settling tower (1), a second settling tower (2), a disinfection box (3) and a backwashing box (4), wherein the second settling tower (2) is communicated with the first settling tower (1), the disinfection box (3) and the backwashing box (4), and a control valve (6) is arranged at the communication position of the second settling tower (2) and the first settling tower (1);

the first precipitation column (1) comprises: the device comprises a mud scraping mechanism (14) arranged at the bottom of the device, a filter screen (13) used for filtering larger impurities and an impurity cleaning mechanism (12) fixed at the top of a first settling tower (1) and used for washing the filter screen (13), wherein a mud outlet pipe (15) is arranged at the bottom of the first settling tower (1);

the second precipitation column (2) comprises: the device comprises a feeding pipe (26) arranged at the top of the device, an adsorption pipe (21) used for adsorbing suspended matters in water, and a waste box (25) arranged at the bottom of the second settling tower (2), wherein the second rotating rod (22) used for stirring and propelling waste materials is horizontally and rotatably arranged at the bottom of the second settling tower (2), the waste box (25) is arranged at the bottom of the second settling tower (2), a plurality of progressive fan blades (23) are arranged on the second rotating rod (22), the second settling tower (2) and the waste box (25) are communicated through a baffle plate (24) arranged at the bottom of the second settling tower (2), the adsorption pipe (21) is an arched pipeline formed by combining a plurality of rows of horizontal pipes communicated through U-shaped pipes, a plurality of layers of biological carbon layers (211) are arranged in the adsorption pipe (21), and the U-shaped pipe at the turning position of the adsorption pipe (21) is communicated with the horizontal pipes through;

the sterilization case (3) includes: a plurality of disinfection rods (31) which are arranged at the top and the bottom of the disinfection rod in a vertically staggered manner and water outlet pipes (33) arranged on the side surfaces of the disinfection rods;

the backwash tank (4) comprises: the device comprises a water pump (42) for injecting cleaning liquid into the adsorption tube (21), an air pump (43) for injecting gas into the adsorption tube (21), and a first power supply (41) for supplying power to the water pump (42) and the air pump (43).

2. The efficient and energy-saving sewage treatment device utilizing biochar as claimed in claim 1, wherein the impurity cleaning mechanism (12) comprises an electric telescopic pipe (121) arranged at the top of the first settling tower, a rotating shaft (123) arranged at the other end of the electric telescopic pipe (121), two supporting arms (122) arranged on the rotating shaft (123) and a brush head (124) arranged on the supporting arms (122).

3. The efficient energy-saving sewage treatment device utilizing biochar as claimed in claim 1, wherein the top ends of the first settling tower (1), the second settling tower (2) and the disinfection box (3) are all provided with access doors (32).

4. The efficient and energy-saving sewage treatment plant utilizing biochar as claimed in claim 1, wherein said fan blades (23) are provided with a hollow layer (232) for water passage and a filter screen layer (231) for filtering biochar and arranged on said hollow layer (232).

5. An energy-efficient apparatus for treating sewage by using biochar as claimed in claim 1, wherein the communicating pipe between said sterilizing tank (3) and said second settling tower (2) is a fiber water purifying pipe (7).

6. The efficient and energy-saving sewage treatment device utilizing biochar as claimed in claim 1, wherein the air pump (43) and the water pump (42) are communicated with the adsorption tube (21) through pipelines, and the communicated part is provided with an electromagnetic valve (8).

7. An energy-efficient sewage treatment plant using biochar as claimed in claim 1, wherein said disinfection bar (31) is screwed on the disinfection tank (3) and can be removed and replaced.

8. The efficient and energy-saving sewage treatment plant utilizing biochar as claimed in claim 1, wherein said sludge scraping mechanism (14) comprises a first rotating rod (141) and a plurality of scrapers (142) arranged on said first rotating rod (141), and a rubber pad is arranged at the outer end of each scraper (142).

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