CN211896273U

CN211896273U - Composite filler curtain structure for sewage treatment

Info

Publication number: CN211896273U
Application number: CN202020418045.1U
Authority: CN
Inventors: 李军; 韦甦; 罗鸿图
Original assignee: Zhejiang University of Technology ZJUT
Current assignee: Zhejiang University of Technology ZJUT
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-11-10
Anticipated expiration: 2030-03-27

Abstract

The utility model discloses a compound filler curtain structure for sewage treatment, including frame, the fixed flexible rope that sets up on the frame, the container bag of the compound filler of splendid attire of carry on flexible rope, the frame includes upper and lower parallel arrangement's last horizontal pole and sheer pole, and vertical connection of flexible rope goes up horizontal pole and sheer pole, and the container bag bilateral symmetry is fixed in flexible rope extremely from top to bottom. The utility model discloses simple structure, reasonable in design, convenient quick start, it is fast to take effect, and the filler curtain carries the standard transformation to aquaculture wastewater treatment or rural domestic sewage treatment facility and carries out the modularized design, size height-adjustable, and on-the-spot suitability is strong, and simple installation is quick, has stronger engineering practicality.

Description

Composite filler curtain structure for sewage treatment

Technical Field

The utility model belongs to the technical field of sewage treatment, concretely relates to handle aquaculture waste water or rural domestic sewage and carry compound filler curtain structure of mark transformation.

Background

At present, in the process of rural aquaculture in China, the concentration of pollutants such as chemical oxygen demand, ammonia nitrogen, total phosphorus and the like in aquaculture water can be increased due to the residual baits and the excrement of aquatic products such as fishes and shrimps, and the water consumption mode of aquaculture mainly aiming at 'large drainage' not only causes great consumption and waste of water resources, but also causes great influence on the water environment, and easily causes the problems of eutrophication and 'water bloom' of the water body. Rural domestic sewage treatment facilities have many points, small amount, simple treatment process, difficult sludge discharge, common standard exceeding of nitrogen and phosphorus of sewage, and great influence on the protection and improvement of rural water environment.

Compared with cities, small micro water bodies such as rural river channels, ditches and village ponds and rural domestic sewage treatment facilities have the characteristics of wide distribution, small water quantity, complex terrain and the like, and biological phosphorus removal and dosing phosphorus removal technologies suitable for urban water environment treatment are difficult to implement in rural areas. In addition, a large number of existing rural domestic sewage treatment facilities have certain treatment capacity and are not suitable for being completely turned over and rebuilt. Therefore, the development of a treatment technology which is suitable for rural areas and has the advantages of low cost, quick response, good effect and simple operation and maintenance is of great significance.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide a compound filler curtain structure for sewage treatment.

The utility model discloses a following technical scheme realizes:

the composite filler curtain structure for sewage treatment is characterized by comprising a frame, a flexible rope fixedly arranged on the frame and a container bag which is hung on the flexible rope and is used for containing composite fillers, wherein the frame comprises an upper cross rod and a lower cross rod which are arranged in parallel from top to bottom, the flexible rope is vertically connected with the upper cross rod and the lower cross rod, and the container bag is bilaterally symmetrical and is fixed on the flexible rope from top to bottom.

The composite filler curtain structure for sewage treatment is characterized in that the diameter of the flexible ropes is not less than 10mm, and the transverse distance between every two adjacent flexible ropes is twice as long as that of the container bag.

The composite filler curtain structure for sewage treatment is characterized in that the container bag is a plastic net bag, and the vertical distance between the upper part and the lower part of the plastic net bag on the same flexible rope is the vertical length of the plastic net bag.

The composite filler curtain structure for sewage treatment is characterized in that the aperture of meshes of the plastic net bag is not more than 0.5 time of the particle size of the minimum filler.

The composite filler curtain structure for sewage treatment is characterized in that the frame is fixed in a water body through an auxiliary bracket or fixed in a treatment pool through expansion screws.

The composite filler curtain structure for sewage treatment is characterized in that the height of the frame is consistent with that of a water body to be treated.

The composite filler curtain structure for sewage treatment is characterized in that the frame is vertically arranged with the water flow direction.

The utility model discloses simple structure, reasonable in design, convenient quick start, it is fast to take effect, and the filler curtain carries the standard transformation to aquaculture wastewater treatment or rural domestic sewage treatment facility and carries out the modularized design, size height-adjustable, and on-the-spot suitability is strong, and simple installation is quick, has stronger engineering practicality.

Drawings

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

in the figure, 1-flexible rope, 2-composite filler, 3-container bag, 4-upper cross bar and 5-lower cross bar.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings, and specific embodiments are given.

The utility model relates to a composite filler curtain structure for sewage treatment, which can effectively reduce and remove pollutants in aquaculture wastewater and realize the recycling of the aquaculture wastewater; the removal efficiency of rural domestic sewage pollutants can be improved, the standard discharge is realized, and the aim of protecting rural water environment is finally fulfilled.

As shown in fig. 1, its concrete structure includes the frame, the fixed flexible rope that sets up on the frame, the container bag of the compound filler of splendid attire of carry on the flexible rope, the plastic string bag is chooseed for use to this container bag, wherein, the frame includes upper horizontal pole and the sheer pole of parallel arrangement from top to bottom, upper horizontal pole and sheer pole are used for fixing vertical flexible rope, keep the steadiness of container bag and compound filler, horizontal pole vertical height and flexible rope length about the determination of the treatment depth of water, the horizontal pole adopts the metal member preparation, the flexible rope can select the indestructible rope such as nylon rope or plastic rope for use, and confirm to arrange the interval according to the size of container bag, upper and lower both ends are fixed in on the frame horizontal pole. During specific installation, the frame is fixed, if the frame is installed in a water body, an auxiliary support can be added to fix the frame, and if the frame is arranged in a treatment pool, the frame can be fixed through expansion screws.

Furthermore, the flexible rope is vertically connected with the upper cross rod and the lower cross rod, and the container bags are bilaterally symmetrical and are fixed on the flexible rope from top to bottom. The flexible ropes are made of nylon ropes or plastic ropes which are not easy to rot, the diameter of the flexible ropes is not less than 10mm, and the transverse distance between every two adjacent flexible ropes is twice the length of the container bag; the vertical distance between the plastic net bags on the same flexible rope is the vertical length of the plastic net bags, the aperture of the meshes of the plastic net bags is not more than 0.5 time of the particle size of the minimum filler, and the composite filler contained in the container bag adopts polyurethane porous biological filler, loofah sponge porous biological filler and iron-carbon micro-electrolysis filler.

Furthermore, the combined filler is formed by combining a polyurethane biological filler, loofah sponge and an iron-carbon micro-electrolysis filler, the height of the combined filler is not suitable to be lower than the water level by 100 mm, the polyurethane biological filler can be prepared by completely immersing a polyurethane material in an aerobic tank of a sewage treatment plant in advance, aerating for 24 hours, taking out the polyurethane material and then naturally drying the polyurethane material; the retinervus Luffae fructus filler is prepared by removing seeds from collected old retinervus Luffae fructus, and cutting into small segments with length of about 50 mm; the iron-carbon micro-electrolysis filler is prepared by mixing iron powder and carbon powder in equal proportion with residual activated sludge of a sewage treatment plant according to the ratio of 20-30:1 and sintering at high temperature.

Further, the polyurethane biological filler, the loofah sponge and the iron-carbon micro-electrolysis filler are filled into a plastic string bag according to the volume ratio of 6:3:1, the diameter of meshes of the plastic string bag is not more than 0.5 time of the minimum diameter of filler particles, and the gauze bag is fastened and fixed on a flexible rope after being filled with the filler particles. The whole stuffing curtain frame is fully distributed with the same plastic net bags.

The polyurethane biological filler and the loofah sponge filler have smaller specific gravity and are easy to float in water; the iron-carbon composite filler has a large specific gravity. By optimizing the mixing proportion of the three fillers, the plastic net bag is basically in a suspended state after the composite filler curtain is placed in water. When sewage passes through the filler curtain, pollutants, the composite filler and microorganisms are adsorbed and degraded, nitrified and denitrified, and pollutants such as organic matters, ammonia nitrogen, phosphorus and the like are removed through the combined action of electrolysis and flocculation precipitation of the iron-carbon dephosphorization filler. The loofah sponge is used as a slow-release carbon source and a biological carrier and is subjected to denitrification treatment together with the polyurethane filler; the iron-carbon filler achieves the purpose of dephosphorization through the combined action of micro-electrolysis and chemical flocculation precipitation.

The composite filling curtain can be used singly or in combination of multiple pieces according to the treatment requirement. When the running time reaches a certain degree, the whole piece of the composite filler curtain can be replaced by a new composite filler curtain, and the removal efficiency of the composite filler curtain is kept.

Claims

1. The utility model provides a compound filler curtain structure for sewage treatment, its characterized in that includes the frame, fixes flexible rope (1) that sets up on the frame, carries container bag (3) of splendid attire compound filler (2) on flexible rope (1), the frame includes upper horizontal pole (4) and sheer pole (5) of parallel arrangement from top to bottom, horizontal pole (4) and sheer pole (5) are connected to flexible rope (1) vertical, container bag (3) bilateral symmetry is fixed in on flexible rope (1) from top to bottom.

2. A composite packing curtain structure for sewage treatment according to claim 1, characterized in that the diameter of the flexible rope (1) is not less than 10mm, and the transverse spacing between adjacent flexible ropes (1) is twice the length of the container bag (3).

3. The composite stuffing curtain structure for sewage treatment as claimed in claim 1, wherein the container bag (3) is a plastic net bag, and the upper and lower spacing of the plastic net bag on the same flexible rope (1) is the vertical length of the plastic net bag.

4. The composite filler curtain structure for sewage treatment as claimed in claim 3, wherein the mesh aperture of the plastic net bag is not more than 0.5 times of the minimum filler particle size.

5. The composite filler curtain structure for sewage treatment as claimed in claim 1, wherein the frame is fixed in the water body by an auxiliary bracket or in the treatment tank by an expansion screw.

6. The composite filler curtain structure for sewage treatment as claimed in claim 1, wherein the height of the frame is identical to the height of the water body to be treated.

7. The composite filler curtain structure for wastewater treatment as claimed in claim 1, wherein said frame is disposed perpendicular to the direction of water flow.