CN115215488A - Environment-friendly treatment system for treating wastewater and sludge of sea-land junction key zone - Google Patents

Abstract

The invention relates to the technical field of sewage and sludge treatment, and discloses an environment-friendly treatment system for treating wastewater and sludge of a sea-land junction key zone, which comprises a first treatment device and a second treatment device; the first treatment device comprises a treatment cavity, piston type ozone mixers arranged on two sides of the treatment cavity and a high-efficiency catalytic module arranged in the treatment cavity; the treatment cavity comprises a middle-section core treatment cavity and a water inlet cavity; the piston type ozone mixer comprises a circular connecting section which is vertically arranged on a plane connecting plate and is communicated with a middle-section core treatment cavity, a negative pressure cavity which is communicated with the circular connecting section, a conical communicating vessel which is arranged between the negative pressure cavity and the circular connecting section, an ozone mixer which is arranged in the circular connecting section, and a piston mechanism which is arranged in the negative pressure cavity; the device can make ozone fully play the role of oxidation, and realize better reduction treatment on sludge.

Description

Environment-friendly treatment system for treating wastewater and sludge of sea-land junction key zone

Technical Field

The invention relates to the technical field of sewage and sludge treatment, in particular to an environment-friendly treatment system for treating wastewater and sludge in a sea-land junction key zone.

Background

Due to the development of industrialization, a large number of factories discharge industrial wastewater produced in daily life; therefore, in the sea-land intersection zone, a large amount of wastewater and sludge are formed under the impact of rainwater or rivers; if a large amount of wastewater and sludge are not treated, the wastewater and sludge enter the ocean, and the balance of the ocean ecosystem is seriously damaged; therefore, ecological protection lines need to be constructed in key zones of sea-land intersection; the natural ecological barrier is formed by relying on mangrove forest and a complete and stable coastal zone, and the absorption, storage and seepage and slow release effects of ecological systems such as greenbelt, water system and the like on rainwater are fully exerted on the basis of perfecting basic facilities such as a rainwater pipe network and the like; however, since a large amount of sludge is generated in infrastructure such as a rainwater pipe network, it is necessary to treat the sludge.

The conventional method for treating excess sludge is to perform concentration and dehydration treatment, and then perform final treatment in modes of burning, sanitary landfill, land utilization and the like; however, the capital investment required by the traditional disposal method is too high, which causes the sewage treatment plant to be embarrassed.

Therefore, the sludge reduction technology becomes an important way for solving the problem of excess sludge in sewage, but the sludge reduction treatment effect in the prior art is poor, and the improvement on the prior art is urgently needed to solve the increasingly severe environmental problem caused by the key sea-land intersection.

Disclosure of Invention

The technical problem solved by the invention is as follows: the prior art adopts ozone to treat waste water and sludge, and the reduction treatment effect of sludge is poor, and the utilization rate of ozone is low.

The technical scheme of the invention is as follows: the environment-friendly treatment system for treating the wastewater and the sludge of the sea-land intersection key zone comprises a first treatment device and a second treatment device, wherein the first treatment device is used for treating the wastewater and the sludge of the sea-land intersection key zone;

the first treatment device comprises a horizontally arranged treatment cavity, two piston type ozone mixers symmetrically arranged on two sides of the treatment cavity and a high-efficiency catalytic module arranged in the treatment cavity;

the treatment cavity comprises a middle section core treatment cavity which is horizontally arranged, and two water inlet cavities which are respectively arranged at two ends of the middle section core treatment cavity and are communicated with the middle section core treatment cavity;

two sides of the lower half part of the middle section core processing chamber are provided with plane connecting plates; a water outlet with a downward opening is formed in the middle-section core processing chamber and is positioned between the plane connecting plates;

the piston type ozone mixer comprises a circular connecting section which is vertically arranged on the plane connecting plate and is communicated with the middle section core treatment cavity, a negative pressure cavity which is communicated with the circular connecting section, a conical communicating vessel of which one end is communicated with the negative pressure cavity and the other end is communicated with the circular connecting section, an ozone mixer which is arranged in the circular connecting section and a piston mechanism which is arranged in the negative pressure cavity;

the ozone mixer comprises a mounting frame, a plurality of bubble stirrers, a rotating ring, an ozone jet flow device and a power assembly, wherein the mounting frame is arranged in the circular connecting section and is parallel to the plane connecting plate;

the ozone jet device is communicated with the ozone storage device;

the high-efficiency catalytic module comprises a catalytic bed arranged inside the middle-section core processing chamber and a catalytic stirring device arranged in the middle-section core processing chamber and positioned between the two catalytic beds;

the second treatment device comprises a sedimentation tank communicated with the water outlet, a muddy water filtering device arranged in the sedimentation tank and communicated with the water outlet, and a sludge drying device communicated with the muddy water filtering device through a sludge discharge pipe.

Furthermore, a communication port connected with the circular connecting section is formed in the plane connecting plate; and the communicating port is provided with a filtering protective cover which is flush with the inner wall of the plane connecting plate.

The sludge can be effectively isolated through the arrangement of the filtering protective cover, the sludge is prevented from entering the negative pressure cavity, and the sludge deposition in the negative pressure cavity is avoided; the filter protection cover can be prevented from being blocked by the movement of the piston mechanism.

Further, the catalytic bed comprises two groups of catalytic bed mounting frames which are respectively arranged on the plane connecting plate, and two plane ozone catalytic beds which are respectively arranged on the catalytic bed mounting frames and are parallel to the filtering protective cover;

and the plane ozone catalyst bed is filled with catalytic filler.

The contact area between the ozone and the catalytic bed can be greatly increased through the corresponding arrangement of the planar ozone catalytic bed and the filtering protective cover, so that the ozone mixture injected by the piston type ozone mixer directly reacts with the catalytic bed; can effectively promote the utilization ratio of ozone, realize high-efficient catalysis, effectively reduce the organic pollutant in sewage and mud.

Furthermore, the catalytic stirring device comprises a middle flow plate vertically arranged between the two plane ozone catalytic beds, triangular fixing frames arranged at two ends of the middle flow plate, and two groups of first stirrers which are respectively arranged at two sides of the middle flow plate and correspond to the plane ozone catalytic beds;

the first stirrer comprises a rotating shaft which is horizontally arranged on the triangular fixing frame and is parallel to the plane ozone catalytic bed, and a plurality of stirring fans which are arranged on the rotating shaft and are uniformly distributed along the axial direction of the rotating shaft.

Through the obstruction of the middle flow distribution plate, the arrangement of the catalytic stirring device can enable ozone to form rotational flow on the upper surface of the planar ozone catalytic bed, and the contact time of the ozone and the catalytic filler can be effectively prolonged; thereby further promoting the catalytic efficiency and improving the utilization rate of ozone.

Furthermore, the catalytic bed also comprises an arc-shaped frame arranged above the plane ozone catalytic bed, and the arc-shaped ozone catalytic bed is arranged on the arc-shaped frame, and two ends of the arc-shaped frame are respectively connected with the upper edge of the plane ozone catalytic bed;

a second stirrer is arranged below the arc ozone catalytic bed;

the second stirrer is positioned above the middle flow plate and has the same structure as the first stirrer.

The filling amount of the catalytic filler can be further increased by arranging the arc-shaped ozone catalytic bed; the second stirrer is arranged to enable the upward ozone bubbles to form rotational flow and to be fully contacted with the arc-shaped ozone catalytic bed, so that the efficient oxidation effect of ozone is realized.

Further, one end of the negative pressure cavity is communicated with the conical communicating vessel;

the piston mechanism comprises a sealing plate arranged at the other end of the negative pressure cavity, a moving piston arranged in the negative pressure cavity and with a side wall in sliding contact with the inner wall of the negative pressure cavity, a connecting flange arranged on the moving piston, two groups of threaded lead screws penetrating through the sealing plate and connected with the connecting flange, and two power devices arranged on the sealing plate and connected with the threaded lead screws respectively.

Compared with the existing crankshaft connecting rod type piston mechanism, the running smoothness of the moving piston can be improved by driving the moving piston through the threaded lead screw, the service life of the piston mechanism is prolonged, and the failure rate is reduced.

Further, an ultrasonic generator is arranged on the inner wall of the plane connecting plate.

The ultrasonic generator can release ultrasonic waves to generate cavitation, and the cavitation process is the process of generating, moving and breaking cavitation bubbles. At the moment of cavitation bubble destruction, high temperature and high pressure are generated in the surrounding space and high shearing force is generated, so that sludge flocs are destroyed, cells are dissolved and intracellular substances are released, and the sludge reduction effect is better; therefore, the catalyst and ozone catalysis can form a composite effect on sludge and sewage, and sludge reduction is effectively realized.

Further, a second section of reaction cavity communicated with the muddy water filtering device is vertically arranged below the water outlet;

the two-stage reaction cavity comprises a reaction pipe with an upper end communicated with the water outlet and a lower end communicated with the muddy water filtering device, and a plurality of groups of spiral fans are vertically arranged in the reaction pipe and uniformly distributed along the central axis of the reaction pipe.

The two-section reaction cavity is arranged, so that the sludge and the sewage can be conveyed and discharged, and residual ozone can play a role in the conveying process; thereby really realizing the zero discharge of the sludge.

Further, a water inlet mixer is arranged in the water inlet cavity;

the water inlet mixer comprises a mixer fixing frame arranged in the water inlet cavity and a mixing turbofan movably arranged on the mixer fixing frame.

The sludge and the sewage entering the middle section core treatment chamber can be stirred by the arrangement of the water inlet mixer, so that the sludge is prevented from precipitating, and the sludge and the sewage can be effectively treated in the middle section core treatment chamber.

The invention has the beneficial effects that: the invention provides an environment-friendly treatment system for treating wastewater and sludge in a sea-land intersection key zone, wherein piston type ozone mixers are arranged on two sides of a middle section core treatment chamber, negative pressure generated by the piston type ozone mixers can be used for performing pulse injection on ozone, ozone bubbles are in full contact with catalytic fillers, and therefore the ozone can fully exert an oxidation effect and better reduction treatment on the sludge is realized; the filling amount of the catalytic filler can be further increased by arranging the arc-shaped ozone catalytic bed; the setting through the second agitator can make the ozone bubble of upward movement form the whirl to the ozone bubble of upward movement can carry out catalytic oxidation with arc ozone catalysis bed, effectively degrades the microorganism in the mud, thereby makes the utilization ratio of ozone obtain promoting greatly.

Drawings

FIG. 1 is a schematic structural view of the whole of embodiment 1 of the present invention;

FIG. 2 is a schematic view of a structure of a treatment chamber according to embodiment 1 of the present invention;

FIG. 3 is a schematic structural view of a piston-type ozone mixer according to example 1 of the present invention;

FIG. 4 is a schematic structural view of an ozone blender in accordance with example 1 of the present invention;

FIG. 5 is a schematic structural diagram of a catalytic bed and a catalytic stirring device in example 1 of the present invention;

FIG. 6 is a schematic view of the structure of a first stirrer according to example 1 of the present invention;

FIG. 7 is a schematic view showing the structure of an arc-shaped ozone catalyst bed in example 2 of the present invention;

FIG. 8 is a schematic structural view of a piston mechanism in embodiment 3 of the invention;

FIG. 9 is a schematic structural view of an ultrasonic generator according to embodiment 4 of the present invention;

FIG. 10 is a schematic structural view of a two-stage reaction chamber according to example 5 of the present invention;

FIG. 11 is a schematic structural view of a water feed mixer according to embodiment 6 of the present invention;

the device comprises a first treatment device 1, a treatment cavity 10, a middle section core treatment cavity 11, a plane connecting plate 110, a water outlet 111, a communication port 112, a filtering protective cover 113, a water inlet cavity 12, a water inlet mixer 13, a mixer fixing frame 130, a two-section reaction cavity 14, a reaction pipe 140, a spiral fan 141, a mixed turbofan 131, a second treatment device 20, a sedimentation tank 21, a muddy water filtering device 22, a sludge discharge pipe 23, a sludge drying device 3, a piston type ozone mixer 30, a circular connecting section 31, a negative pressure cavity 32, a cone-shaped communicating device 33, an ozone mixer 34, a piston mechanism 330, a mounting frame 331, a bubble stirrer 332, a rotating ring, an ozone jet flow device 333, an ozone sealing plate 340, a moving piston 342, a connecting flange 343, a threaded screw rod, a 344-power device, a high-efficiency catalytic module 4, a catalytic bed 40, a catalytic bed 400, a catalytic bed 401, a plane 402, an arc-plane bracket, an ozone-403, an arc-shaped catalytic bed 41-42-triangular stirring fan fixing frame 43, a supersonic stirring fan middle stirring fan-410, a supersonic generator 43, a supersonic generator 411-44 and a supersonic generator.

Detailed Description

Example 1

The environmental protection treatment system for treating wastewater and sludge of cross key zone as shown in fig. 1 comprises a first treatment device 1 for treating wastewater and sludge of cross key zone, and a second treatment device 2 communicated with the first treatment device 1;

the first treatment device 1 comprises a horizontally arranged treatment cavity 10, two piston type ozone mixers 3 symmetrically arranged at two sides of the treatment cavity 10 and a high-efficiency catalytic module 4 arranged inside the treatment cavity 10;

as shown in fig. 2, the processing chamber 10 includes a middle-stage core processing chamber 11 disposed horizontally, and two water inlet chambers 12 disposed at two ends of the middle-stage core processing chamber 11 and communicated with the middle-stage core processing chamber 11, respectively;

two sides of the lower half part of the middle section core processing chamber 11 are provided with a plane connecting plate 110; the middle section core processing chamber 11 is provided with a water outlet 111 which is positioned between the plane connecting plates 110 and has a downward opening;

as shown in fig. 2 and 3, the piston type ozone mixer 3 includes a circular connecting section 30 vertically disposed on the planar connecting plate 110 and communicating with the middle core processing chamber 11, a negative pressure chamber 31 communicating with the circular connecting section 30, a conical communicating vessel 32 communicating with the negative pressure chamber 31 at one end and the circular connecting section 30 at the other end, an ozone mixer 33 disposed in the circular connecting section 30, and a piston mechanism 34 disposed in the negative pressure chamber 31;

as shown in fig. 4, the ozone mixer 33 comprises a mounting frame 330,3 movably disposed on the mounting frame 330 and evenly distributed around the central axis of the circular connecting section 30, a rotating ring 332 movably disposed on the mounting frame 330 and located on the side wall of the circular connecting section 30, an ozone jet 333 evenly disposed on the side wall of the rotating ring 332, and a power assembly for providing power to the rotating ring 332 and the bubble mixer 331, wherein the mounting frame 330,3 is disposed in the circular connecting section 30 and parallel to the plane connecting plate 110;

the ozone jet device 333 is communicated with an ozone storage device;

as shown in fig. 4, the high-efficiency catalytic module 4 comprises a catalytic bed 40 disposed inside the middle core processing chamber 11, a catalytic stirring device 41 disposed inside the middle core processing chamber 11 and between two catalytic beds 40;

as shown in fig. 1, the second treatment apparatus 2 includes a sedimentation tank 20 communicating with a drain port 111, a sludge-water filtering apparatus 21 provided in the sedimentation tank 20 and communicating with the drain port 111, and a sludge drying apparatus 23 communicating with the sludge-water filtering apparatus 21 through a sludge discharge pipe 22.

As shown in fig. 5, the planar connecting plate 110 is provided with a communication port 112 connected with the circular connecting section 30; the communicating opening 112 is provided with a filtering protective cover 113 which is flush with the inner wall of the plane connecting plate 110.

Said catalytic bed 40 comprises two groups of catalytic bed mounts 400 arranged on said plane connection plate 110, respectively, two plane ozone catalytic beds 401 arranged on said catalytic bed mounts 400 and parallel to the filtering shield 113, respectively;

the plane ozone catalyst bed 401 is filled with catalytic filler; the catalytic filler is rare earth modified activated alumina.

The catalytic stirring device 41 comprises a middle flow plate 410 vertically arranged between two plane ozone catalyst beds 401, triangular fixing frames 411 arranged at two ends of the middle flow plate 410, and two groups of first stirrers 42 which are respectively arranged at two sides of the middle flow plate 410 and correspond to the plane ozone catalyst beds 401;

as shown in fig. 6, the first stirrer 42 includes a rotating shaft 420 horizontally disposed on the triangular fixing frame 411 and parallel to the planar ozone catalyst bed 401, and a plurality of stirring fans 421 disposed on the rotating shaft 420 and uniformly distributed along the axial direction of the rotating shaft 420.

The rotating shaft 420, the stirring fan 421, the sludge drying device 23, the sludge water filtering device 21, the ozone jet 333 and the piston mechanism 34 are all products of the prior art, and the specific product types can be selected by those skilled in the art according to the needs.

Example 2

The difference from example 1 is:

as shown in fig. 7, the catalytic bed 40 further includes an arc-shaped frame 402 disposed above the planar ozone catalytic bed 401, and an arc-shaped ozone catalytic bed 403 disposed on the arc-shaped frame 402 and having two ends respectively connected to the upper edge of the planar ozone catalytic bed 401;

a second stirrer 43 is arranged below the arc-shaped ozone catalytic bed 403;

the second stirrer 43 is located above the middle flow plate 410 and has the same structure as the first stirrer 42.

Wherein, the arc ozone catalytic bed 403 is filled with rare earth modified activated alumina.

Example 3

The difference from example 1 is:

one end of the negative pressure cavity 31 is communicated with the conical communicating vessel 32;

as shown in fig. 8, the piston mechanism 34 includes a sealing plate 340 disposed at the other end of the negative pressure chamber 31, a moving piston 341 disposed in the negative pressure chamber 31 and having a side wall in sliding contact with an inner wall of the negative pressure chamber 31, a connecting flange 342 disposed on the moving piston 341, two sets of threaded screws 343 connected to the connecting flange 342 through the sealing plate 340, and two power units 344 disposed on the sealing plate 340 and connected to the threaded screws 343, respectively.

The power device 344, the threaded lead screw 343, and the moving piston 341 are all manufactured by the prior art, and the specific product type can be selected by those skilled in the art according to the needs.

Example 4

The difference from example 1 is:

as shown in fig. 9, the ultrasonic generator 44 is provided on the inner wall of the planar connection plate 110.

The ultrasonic generator 44 is a prior art product, and the specific product model can be selected by those skilled in the art as required.

Example 5

The difference from example 1 is:

as shown in fig. 10, a second-stage reaction chamber 14 communicated with the muddy water filtering device 21 is vertically arranged below the water outlet 111;

the second-stage reaction chamber 14 includes a group of reaction tubes 140,2 with upper ends communicated with the water outlet 111 and lower ends communicated with the sludge water filtering device 21, and spiral fans 141 vertically arranged in the reaction tubes 140 and uniformly distributed along the central axis of the reaction tubes 140.

Example 6

The difference from example 1 is:

as shown in fig. 11, a water inlet mixer 13 is arranged in the water inlet chamber 12;

the water inlet mixer 13 comprises a mixer fixing frame 130 arranged in the water inlet chamber 12, and a mixing turbofan 131 movably arranged on the mixer fixing frame 130.

Claims (9)

1. The environment-friendly treatment system for treating the wastewater and the sludge of the sea-land junction key zone is characterized by comprising a first treatment device (1) for treating the wastewater and the sludge of the sea-land junction key zone and a second treatment device (2) communicated with the first treatment device (1);

the first treatment device (1) comprises a horizontally arranged treatment cavity (10), two piston type ozone mixers (3) symmetrically arranged at two sides of the treatment cavity (10), and a high-efficiency catalytic module (4) arranged inside the treatment cavity (10);

the treatment cavity (10) comprises a middle section core treatment cavity (11) which is horizontally arranged, and two water inlet cavities (12) which are respectively arranged at two ends of the middle section core treatment cavity (11) and are communicated with the middle section core treatment cavity (11);

two sides of the lower half part of the middle section core processing chamber (11) are provided with a plane connecting plate (110); a water outlet (111) with a downward opening and positioned between the plane connecting plates (110) is arranged on the middle section core processing chamber (11);

the piston type ozone mixer (3) comprises a circular connecting section (30) which is vertically arranged on the plane connecting plate (110) and is communicated with the middle section core treatment chamber (11), a negative pressure cavity (31) which is communicated with the circular connecting section (30), a conical communicating vessel (32) of which one end is communicated with the negative pressure cavity (31) and the other end is communicated with the circular connecting section (30), an ozone mixer (33) which is arranged in the circular connecting section (30), and a piston mechanism (34) which is arranged in the negative pressure cavity (31);

the ozone blender (33) comprises a mounting frame (330) which is arranged in the circular connecting section (30) and is parallel to the plane connecting plate (110), a plurality of bubble blenders (331) which are movably arranged on the mounting frame (330) and are uniformly distributed around the central axis of the circular connecting section (30), a rotating ring (332) which is movably arranged on the mounting frame (330) and is positioned on the side wall of the circular connecting section (30), ozone jet sprayers (333) which are uniformly arranged on the side wall of the rotating ring (332), and a power component which is used for providing power for the rotating ring (332) and the bubble blenders (331);

the ozone jet device (333) is communicated with the ozone storage device;

the high-efficiency catalytic module (4) comprises a catalytic bed (40) arranged inside the middle core processing chamber (11), and a catalytic stirring device (41) arranged inside the middle core processing chamber (11) and between the two catalytic beds (40);

the second treatment device (2) comprises a sedimentation tank (20) communicated with the water outlet (111), a muddy water filtering device (21) arranged in the sedimentation tank (20) and communicated with the water outlet (111), and a sludge drying device (23) communicated with the muddy water filtering device (21) through a sludge discharge pipe (22).

2. The environmental protection treatment system for treating wastewater and sludge of sea-land junction key zone as claimed in claim 1, wherein the plane connection plate (110) is provided with a communication port (112) connected with the circular connection section (30); the communicating opening (112) is provided with a filtering protective cover (113) which is flush with the inner wall of the plane connecting plate (110).

3. The eco-friendly treatment system for waste water and sludge of cross-sea key zones as claimed in claim 2, wherein said catalytic bed (40) comprises two sets of catalytic bed mounts (400) respectively arranged on said planar connection plate (110), two planar ozone catalytic beds (401) respectively arranged on said catalytic bed mounts (400) and parallel to a filtering shield (113);

the plane ozone catalyst bed (401) is filled with catalytic filler.

4. The eco-friendly treatment system for wastewater and sludge in sea-land crossing critical zones according to claim 3, wherein the catalytic agitation device (41) comprises a middle flow plate (410) vertically disposed between two planar ozone catalyst beds (401), triangular fixing frames (411) disposed at both ends of the middle flow plate (410), two sets of first agitators (42) respectively disposed at both sides of the middle flow plate (410) and corresponding to the planar ozone catalyst beds (401);

the first stirrer (42) comprises a rotating shaft (420) which is horizontally arranged on the triangular fixing frame (411) and is parallel to the plane ozone catalytic bed (401), and a plurality of stirring fans (421) which are arranged on the rotating shaft (420) and are axially and uniformly distributed along the rotating shaft (420).

5. The environmental protection treatment system for treating wastewater and sludge in sea-land crossing critical zones according to claim 4, wherein the catalytic bed (40) further comprises an arc-shaped frame (402) arranged above the planar ozone catalytic bed (401), and an arc-shaped ozone catalytic bed (403) which is arranged on the arc-shaped frame (402) and has two ends respectively connected with the upper edge of the planar ozone catalytic bed (401);

a second stirrer (43) is arranged below the arc-shaped ozone catalytic bed (403);

the second stirrer (43) is positioned above the middle flow plate (410) and has the same structure as the first stirrer (42).

6. The eco-friendly treatment system for wastewater and sludge of sea-land intersection critical zone according to claim 1, wherein one end of the negative pressure chamber (31) is communicated with a conical communicating vessel (32);

the piston mechanism (34) comprises a sealing plate (340) arranged at the other end of the negative pressure cavity (31), a moving piston (341) arranged in the negative pressure cavity (31) and with a side wall in sliding contact with the inner wall of the negative pressure cavity (31), a connecting flange (342) arranged on the moving piston (341), two groups of threaded lead screws (343) penetrating through the sealing plate (340) and connected with the connecting flange (342), and two power devices (344) arranged on the sealing plate (340) and connected with the threaded lead screws (343) respectively.

7. The eco-friendly treatment system for wastewater and sludge of sea-land crossing key zone as claimed in claim 1, wherein the inner wall of the plane connection plate (110) is provided with an ultrasonic generator (44).

8. The environmental protection treatment system for treating wastewater and sludge of sea-land junction key zone as claimed in claim 1, wherein a second stage reaction chamber (14) communicated with a muddy water filtering device (21) is vertically arranged below the water outlet (111);

the two-section reaction cavity (14) comprises a reaction pipe (140) with the upper end communicated with the water outlet (111) and the lower end communicated with the muddy water filtering device (21), and a plurality of groups of spiral fans (141) which are vertically arranged in the reaction pipe (140) and are uniformly distributed along the central axis of the reaction pipe (140).

9. The environmental protection treatment system for treating wastewater and sludge of sea-land crossing critical zone according to claim 1, characterized in that a water inlet mixer (13) is arranged in the water inlet chamber (12);

the water inlet mixer (13) comprises a mixer fixing frame (130) arranged in the water inlet cavity (12) and a mixing turbofan (131) movably arranged on the mixer fixing frame (130).

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