In-situ repair material, repair method and repair device for black and odorous water body sludge

Abstract

The present invention discloses an in-situ repair material, a repair method and a repair device for the bottom mud of a black and odorous water body, and relates to sewage treatment technology, an in-situ repair material for the bottom mud of a black and odorous water body, and the repair material comprises a first repair package and a second repair package. The first repair package comprises a fiber mesh layer of a spherical structure, and an adsorption block of zeolite powder and calcium peroxide mixed with each other is arranged in the fiber mesh package. A degradation layer is wrapped on the mesh wire of the mesh package, and a high-efficiency polyaluminum chloride layer is adhered to the outside of the degradation layer. The second repair package comprises submerged plant seeds, and the outside of the submerged plant seeds is wrapped with a soil layer, a natural mineral composite material, and a soil material mixed layer in sequence. The present invention also provides an in-situ repair method for the bottom mud of a black and odorous water body and an in-situ repair device for the bottom mud of a black and odorous water body. The present invention can restore the ecosystem of the overlying water body while removing the bottom mud pollutants in situ, and has strong applicability, economic rationality, and a feasible method.

Description

Technical Field

[0001] The present invention belongs to sewage treatment technology, and specifically relates to an in-situ repair material, a repair method and a repair device for black and odorous water body sludge. Background Art

[0002] When rivers and lakes are polluted, a small part of the pollutants can be eliminated through the self-purification of the water body, and most of them settle to form bottom sediments to constitute the river and lake mud. When disturbed by the water flow, the river and lake mud is easy to re-suspend and re-enter the water body, thereby affecting the water quality of the water body. After a long period of accumulation, black and smelly water bodies are formed. The existing treatment of contaminated sludge often adopts in-situ treatment technology. In-situ treatment technology can avoid the problem of secondary pollution during the dredging process and does not require the search for additional treatment and disposal sites. However, the existing in-situ treatment technology has the defects of complicated steps, long construction time, and unsatisfactory ecological effect restoration. Especially in black and smelly water bodies, the treatment effect of the existing in-situ treatment technology is even more unsatisfactory. To overcome the defects of the existing in-situ treatment technology, we proposed an in-situ remediation material, remediation method and remediation device for black and smelly water body mud. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an in-situ repair material, a repair method and a repair device for black and odorous water body sludge.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A black and odorous water body sediment in-situ remediation material is designed, the remediation material comprises a first remediation packaging material and a second remediation packaging material, the first remediation packaging material and the second remediation packaging material are mixed in equal proportions;

[0006] The first repair package material comprises a fiber mesh layer with a spherical structure, wherein an adsorption block of zeolite powder and calcium peroxide mixed with each other is arranged in the fiber mesh layer, a degradation layer is wrapped on the mesh wire of the mesh layer, and a high-efficiency polyaluminium chloride layer is adhered to the outer side of the degradation layer;

[0007] The second repair packaging material includes submerged plant seeds, and the outer side of the submerged plant seeds is wrapped with a soil layer, a natural mineral composite material, and a soil material mixed layer in sequence.

[0008] Furthermore, the mixing mass ratio of the zeolite powder and calcium peroxide in the adsorption block is 1:2-3.

[0009] Furthermore, the soil material mixed layer is a mixed layer of modified diatomaceous earth and modified attapulgite in a mass ratio of 1:2 to 3.

[0010] The present invention also provides an in-situ repair method for black and odorous water body sludge, which is used to put the above-mentioned black and odorous water body sludge in-situ repair material, and the method comprises the following steps:

[0011] S1. Adding activated denitrifying bacteria, photosynthetic bacteria and Bacillus subtilis into the black and smelly water;

[0012] S2. Add microbial activation components to the black and odorous water and aerate for 2-3 hours;

[0013] S3. After completing step S2, after standing for 1-2 hours, add the first repair packaging material and the second repair packaging material mixed in equal proportions into the black and smelly water body, and stir the water body evenly while adding.

[0014] Furthermore, in step S1, the dosage of the denitrifying agent is 5 g / m 3 -10g / m 3 , effective viable count ≥ 1.0 × 10 8 / g, the dosage of photosynthetic bacteria is 1mL / m 3 -10mL / m 3 , effective viable count ≥ 3.4×10 9 / mL, the dosage of Bacillus subtilis was 1mL / m 3 -10mL / m 3 , effective viable count ≥ 3.4×10 9 Pieces / mL.

[0015] Furthermore, the microbial activation component in step S2 is a mixture of sugars, natural minerals, vitamins, and amino acids, and the dosage is 500-800 mL / m 3 .

[0016] Furthermore, in step S1, the mixed material of the first repair packaging material and the second repair packaging material is put in an amount of 150 g / m 3 -500g / m 3 .

[0017] The present invention also provides an in-situ repair device for bottom mud of black and odorous water bodies, which is used for placing the above-mentioned in-situ repair materials for bottom mud of black and odorous water bodies. The device comprises a long strip storage box, and two ends of one side of the storage box are fixedly provided with fixing brackets for fixing on the hull, and the bottom of the storage box is provided with a plurality of discharge ports along its length direction, and a discharge box is fixedly provided on the discharge port, and a discharge roller is provided in the discharge box, and a discharge pipe is fixedly provided at the bottom of the discharge box;

[0018] A connecting seat is fixedly provided between the two material discharge boxes, a stirring shaft is vertically connected to the connecting seat in a rotating manner, and a stirring blade with a spiral structure is provided on the stirring shaft along its length direction;

[0019] A connecting rod is provided below the material storage box along its length direction, penetrating the material box and the connecting seat. A driving motor for driving the connecting rod to rotate is fixedly provided at one end of the material storage box, and one end of the connecting rod is fixedly connected to the output end of the driving motor.

[0020] The unloading roller is fixed on the connecting rod, and a plurality of material storage grooves are arranged in an array in the circumference of the unloading roller;

[0021] One end of the stirring shaft is fixed on the connecting seat through a first shaft seat and a second shaft seat, and a transmission mechanism is provided between the stirring shaft and the connecting rod.

[0022] Furthermore, the outer diameter of the material discharge roller is the same as the inner diameter of the material discharge box.

[0023] Furthermore, the transmission mechanism includes an externally threaded sleeve and a gear, wherein the externally threaded sleeve is fixedly arranged on the connecting rod, and the gear is fixedly arranged on the stirring shaft, and the gear is meshed with the externally threaded sleeve.

[0024] The invention provides an in-situ repair material, a repair method and a repair device for black and odorous water body sludge, which have the following beneficial effects:

[0025] (1) The present invention can repair black and odorous water bodies and the bottom mud of the water bodies without draining the black and odorous water bodies. It can form a protective isolation layer on the surface of the bottom mud while purifying the black and odorous water bodies, and can effectively solidify the surface of the bottom mud to prevent fish activities, water body fluctuations, etc. from disturbing the bottom mud and causing further pollution to the water body.

[0026] (2) The present invention can not only remove sediment pollutants in situ, but also restore the ecological system of the overlying water body, and has strong applicability, economic rationality, and feasible method. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 is a schematic structural diagram of a first repair packaging material in an embodiment of the present invention;

[0029] Figure 2 is a schematic structural diagram of a second repair packaging material in an embodiment of the present invention;

[0030] Figure 3 is a schematic structural diagram of a repair device in an embodiment of the present invention;

[0031] Figure 4 It is a schematic diagram of the internal structure of the repair device in an embodiment of the present invention.

[0032] Marked in the figure: 1 storage box 1, discharge port 11, fixed bracket 12, protrusion 13, discharge box 2, discharge roller 21, storage trough 22, discharge pipe 23, connecting seat 3, external threaded sleeve 31, gear 32, drive motor 4, connecting rod 5, stirring shaft 6, first shaft seat 61, second shaft seat 62, stirring blade 63, first repair packaging material 10, fiber mesh layer 101, adsorption block 102, degradation layer 103, high-efficiency polyaluminum chloride layer 104, second repair packaging material 20, submerged plant seeds 201, soil layer 202, natural mineral composite material 203, soil material mixed layer 204. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with specific embodiments. These embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The structural features of the present invention are now described in detail with reference to the accompanying drawings.

[0035] See also Figure 1-2 , an in-situ repair material for black and smelly water body sludge, the repair material includes a first repair package 10 and a second repair package 20, and the first repair package 10 and the second repair package 20 are mixed in equal proportions.

[0036] The first repair package 10 includes a fiber mesh layer 101 with a spherical structure. An adsorption block 102 in which zeolite powder and calcium peroxide are mixed is arranged in the fiber mesh layer 101. The mixing mass ratio of zeolite powder and calcium peroxide in the adsorption block 103 is 1:2-3.

[0037] The mesh wires of the mesh cladding 101 are wrapped with a degradation layer 103 , and a high-efficiency polyaluminium chloride layer 104 is adhered to the outer side of the degradation layer 103 .

[0038] The second repair packaging material 20 includes a submerged plant seed 201 , the outer side of the submerged plant seed 201 is sequentially wrapped with a soil layer 202 , a natural mineral composite material 203 , and a soil material mixed layer 204 .

[0039] The soil material mixed layer 204 is a mixed layer of modified diatomaceous earth and modified attapulgite in a mass ratio of 1:2 to 3.

[0040] Example 1

[0041] For further explanation, the present invention also provides a method for in-situ remediation of black and odorous water body sludge, which is used to put the above-mentioned black and odorous water body sludge in-situ remediation material, and the method comprises the following steps:

[0042] S1. After completing step S1, after standing for 1-2 hours, activated denitrifying bacteria, photosynthetic bacteria and Bacillus subtilis are added to the black and odorous water. The dosage of denitrifying bacteria is 5g / m 3 , effective viable count ≥ 1.0 × 10 8 / g, the dosage of photosynthetic bacteria is 1mL / m 3 , effective viable count ≥ 3.4×10 9 / mL, the dosage of Bacillus subtilis was 1mL / m 3 , effective viable count ≥ 3.4×10 9 Pieces / mL;

[0043] S2. Add microbial activation components into the black and odorous water and aerate for 2-3 hours. The microbial activation components are a mixture of sugars, natural minerals, vitamins, and amino acids. The dosage is 500mL / m 3 ;

[0044] S3, add the first repair packaging material 10 and the second repair packaging material 20 mixed in equal proportions into the black and odorous water body, stir while adding, and the amount of the mixed material of the first repair packaging material 10 and the second repair packaging material 20 is 150g / m 3 .

[0045] Example 2

[0046] For further explanation, the present invention also provides a method for in-situ remediation of black and odorous water body sludge, which is used to put the above-mentioned black and odorous water body sludge in-situ remediation material, and the method comprises the following steps:

[0047] S1. After completing step S1, after standing for 1-2 hours, add activated denitrifying bacteria, photosynthetic bacteria and Bacillus subtilis to the black and odorous water. The dosage of denitrifying agent is 7g / m 3 , effective viable count ≥ 1.0 × 10 8 / g, the dosage of photosynthetic bacteria is 5mL / m 3 , effective viable count ≥ 3.4×10 9 / mL, the dosage of Bacillus subtilis was 5mL / m 3 , effective viable count ≥ 3.4×10 9 Pieces / mL;

[0048] S2. Add microbial activation components into the black and odorous water and aerate for 2-3 hours. The microbial activation components are a mixture of sugars, natural minerals, vitamins, and amino acids. The dosage is 700mL / m3 ;

[0049] S3, add the first repair packaging material 10 and the second repair packaging material 20 mixed in equal proportions into the black and odorous water body, stir while adding, and the mixed material of the first repair packaging material 10 and the second repair packaging material 20 is added in an amount of 300g / m 3 .

[0050] Example 3

[0051] For further explanation, the present invention also provides a method for in-situ remediation of black and odorous water body sludge, which is used to put the above-mentioned black and odorous water body sludge in-situ remediation material, and the method comprises the following steps:

[0052] S1. After completing step S1, after standing for 1-2 hours, activated denitrifying bacteria, photosynthetic bacteria and Bacillus subtilis are added to the black and odorous water. The dosage of denitrifying bacteria is 10g / m 3 , effective viable count ≥ 1.0 × 10 8 / g, the dosage of photosynthetic bacteria is 10mL / m 3 , effective viable count ≥ 3.4×10 9 / mL, the dosage of Bacillus subtilis was 10mL / m 3 , effective viable count ≥ 3.4×10 9 Pieces / mL;

[0053] S2. Add microbial activation components into the black and odorous water and aerate for 2-3 hours. The microbial activation components are a mixture of sugars, natural minerals, vitamins, and amino acids. The dosage is 800mL / m 3 ;

[0054] S3, add the first repair packaging material 10 and the second repair packaging material 20 mixed in equal proportions into the black and odorous water body, stir while adding, and the mixed material of the first repair packaging material 10 and the second repair packaging material 20 is added in an amount of 500g / m 3 .

[0055] See also Figure 3-4 The present invention also provides an in-situ repair device for black and odorous water body sediment, which is used for putting the above-mentioned in-situ repair materials for black and odorous water body sediment. The device includes a long strip storage box 1, and both ends of one side of the storage box 1 are fixedly provided with fixing brackets 12 for fixing on the hull. The bottom of the storage box 1 is provided with multiple discharge ports 11 along its length direction, and a discharge box 2 is fixedly provided on the discharge port 11. A discharge roller 21 is provided in the discharge box 2, and a discharge pipe 23 is fixedly provided at the bottom of the discharge box 2.

[0056] A connecting seat 3 is fixedly provided between the two material discharge boxes 2, and a stirring shaft 6 is vertically connected to the connecting seat 3 in a rotatable manner. The stirring shaft 6 is provided with stirring blades 63 with a spiral structure along its length direction.

[0057] A connecting rod 5 is provided below the material storage box 1 along its length direction, penetrating the material discharge box 2 and the connecting seat 3. A driving motor 4 for driving the connecting rod 5 to rotate is fixedly provided at one end of the material storage box 1, and one end of the connecting rod 5 is fixedly connected to the output end of the driving motor 4.

[0058] The unloading roller 21 is fixed on the connecting rod 5 , and a plurality of material storage grooves 22 are arranged in an array in the circumference of the unloading roller 21 . The outer diameter of the unloading roller 21 is the same as the inner diameter of the unloading box 2 .

[0059] One end of the stirring shaft 6 is fixed to the connecting seat 3 through the first shaft seat 61 and the second shaft seat 62. A transmission mechanism is provided between the stirring shaft 6 and the connecting rod 5. The transmission mechanism includes an external threaded sleeve 31 and a gear 32. The external threaded sleeve 31 is fixedly arranged on the connecting rod 5, and the gear 32 is fixedly arranged on the stirring shaft 6. The gear 32 is meshed with the external threaded sleeve 31.

[0060] Specifically, when repairing a black and smelly water body, the evenly mixed first repair package 10 and second repair package 20 are first placed in the storage box 1. When the hull moves in the black and smelly water area, the driving motor 4 drives the connecting rod 5 to rotate. The rotating connecting rod 5 synchronously drives the unloading roller 21 and the stirring shaft 6 to rotate together. The unloading roller 21 evenly spreads the first and second repair packages 10 and 20 in the storage box 1 into the water body, and mixes them evenly with the black and smelly water body under the stirring of the stirring blade 63.

[0061] During the descent of the first repair package 10 and the second repair package 20, the high-efficiency polyaluminium chloride layer 104 attached to the mesh cladding 101 on the first repair package 10 dissolves to form a gel to absorb suspended matter in the water body, and with the auxiliary adsorption of the adsorption block 102, they are precipitated together on the bottom mud of the black and smelly water body to form a protective film that adheres to the body, preventing the gel from suspending on the water body and causing secondary pollution. The submerged plant seeds 201 in the second repair package 20 will form a protective film together with the first repair package 10, which is used for the formation of submerged plants in the bottom mud in the later stage, forming the ability of natural purification.

[0062] The present invention can repair black and odorous water bodies and the bottom mud of the water bodies without draining the black and odorous water bodies, can form a protective isolation layer on the bottom mud surface while purifying the black and odorous water bodies, can effectively solidify the bottom mud surface to prevent the bottom mud disturbance from polluting the water body again, and can restore the ecological system of the overlying water body while removing the bottom mud pollutants in situ. The invention has strong applicability, is economical and reasonable, and the method is feasible.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An in-situ remediation device for black and odorous water body sludge, used for placing in-situ remediation materials for black and odorous water body sludge, characterized in that: The device comprises a long strip material storage box (1), two ends of one side of the material storage box (1) are fixedly provided with fixing brackets (12) for fixing on a ship body, a plurality of material discharge openings (11) are provided at the bottom of the material storage box (1) along its length direction, a material discharge box (2) is fixedly provided on the material discharge opening (11), a material discharge roller (21) is provided inside the material discharge box (2), and a material discharge pipe (23) is fixedly provided at the bottom of the material discharge box (2); A connecting seat (3) is fixedly provided between the two material discharge boxes (2), a stirring shaft (6) is vertically connected to the connecting seat (3) in a rotatable manner, and a stirring blade (63) with a spiral structure is provided on the stirring shaft (6) along its length direction; A connecting rod (5) is provided below the material storage box (1) along its length direction and passes through the material discharge box (2) and the connecting seat (3); a driving motor (4) for driving the connecting rod (5) to rotate is fixedly provided at one end of the material storage box (1); and one end of the connecting rod (5) is fixedly connected to the output end of the driving motor (4); The unloading roller (21) is fixed on the connecting rod (5), and a plurality of material storage grooves (22) are arranged in an array in the circumference of the unloading roller (21); One end of the stirring shaft (6) is fixed to the connecting seat (3) via a first shaft seat (61) and a second shaft seat (62), and a transmission mechanism is provided between the stirring shaft (6) and the connecting rod (5). The outer diameter of the unloading roller (21) is the same as the inner diameter of the unloading box (2). The transmission mechanism comprises an external threaded sleeve (31) and a gear (32), wherein the external threaded sleeve (31) is fixedly arranged on the connecting rod (5), and the gear (32) is fixedly arranged on the stirring shaft (6), and the gear (32) is meshed with the external threaded sleeve (31). The black and odorous water body sediment in-situ remediation material comprises a first remediation packaging material (10) and a second remediation packaging material (20), wherein the first remediation packaging material (10) and the second remediation packaging material (20) are mixed in equal proportions; The first repair package (10) comprises a fiber mesh cladding (101) of a spherical structure, wherein an adsorption block (102) of zeolite powder and calcium peroxide mixed with each other is arranged in the fiber mesh cladding (101), a degradation layer (103) is wrapped on the mesh wire of the mesh cladding (101), and a high-efficiency polyaluminium chloride layer (104) is adhered to the outer side of the degradation layer (103); The second repair packaging material (20) comprises a submerged plant seed (201), the outer side of the submerged plant seed (201) is sequentially wrapped with a soil layer (202), a natural mineral composite material (203), and a soil material mixed layer (204), The mixing mass ratio of zeolite powder and calcium peroxide in the adsorption block (102) is 1:2-3. The soil material mixed layer (204) is a mixed layer of modified diatomaceous earth and modified attapulgite in a mass ratio of 1:2 to 3.

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