CN210736461U

CN210736461U - Suspended ball film hanging device with combined filler

Info

Publication number: CN210736461U
Application number: CN201921231733.0U
Authority: CN
Inventors: 季民; 马慧临; 赵迎新
Original assignee: Tianjin University
Current assignee: Tianjin University
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-06-12
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses a suspended ball film hanging device with combined filler, which comprises a floating ball body, wherein the floating ball body consists of two hemispheroids with water permeable holes, the edge of each hemispheroid is provided with at least two rectangular clamping grooves at equal intervals, and a buckle is arranged between every two adjacent rectangular clamping grooves; the hemispheres are filled with fiber strips and substances with the density of 2g/cm³‑2.4g/cm³The filler in the middle is mixed to form the filler. The utility model aims to provide a film-forming device with low cost and good film-forming effect,the floating ball film hanging device can keep the floating ball in a suspended state in water by filling the filler into the floating ball.

Description

Suspended ball film hanging device with combined filler

Technical Field

The utility model relates to a sewage treatment technical field especially relates to a membrane device is hung to suspension ball with combined packing.

Background

At present, the population base of rural areas in China is large, and the sewage discharge amount is increasing day by day. However, due to various reasons such as imperfect overall layout of rural sewage treatment systems, poor environmental awareness of farmers and the like, in more than 250 thousands of natural villages in China, about 96% of rural sewage is directly discharged without being treated by the system, and the sustainable development of rural areas is severely restricted. Biological treatment is always the main treatment technology of rural distributed small-sized sewage, the filler is an important influence factor of the biomembrane technology, and the performance of the filler directly influences the treatment effect and the operation cost of the biomembrane reactor. However, the existing biological filler structure can not completely meet the growth of organisms in the filler, the setting mode is fixed, the growth of microorganisms is slow, and the water treatment effect is unstable. Therefore, a suspension ball film hanging device which is low in cost, good in film hanging effect and capable of keeping a floating ball in a suspension state in water by filling fillers into the floating ball is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the above-mentioned prior art, aim at providing a low cost, it is effectual to hang the membrane, and the accessible is filled the filler to the floater and is made the floater keep suspended state's suspension ball to hang the membrane device in aqueous.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a suspended ball film hanging device with combined fillers comprises a floating ball body, wherein the floating ball body is composed of two hemispheres with water permeable holes, the edge of each hemisphere is provided with at least two rectangular clamping grooves at equal intervals, and a buckle is arranged between every two adjacent rectangular clamping grooves; the hemispheres are filled with fiber strips.

Further, the hemisphere is filled with a filler, and the filler is a solid phase novel slow-release carbon source and sponge iron.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a floater that has a plurality of hole of permeating water to and utilize ribbon and filler mixture to become density control at 1g/cm³The filler can make the floating ball in suspension state in water after being filled with the filler, the microorganism can be quickly filmed, the filming effect is good, the whole device is simple to operate, and the cost is lowThe applicability is strong. And the filler used for manufacturing the filler can be flexibly adjusted according to the use requirement, and different functional requirements can be realized. For example, a solid phase novel slow-release carbon source can be used for reducing an external carbon source and promoting denitrification; sponge iron may also be used to slow the release of Fe²⁺、Fe³⁺And the dephosphorization effect is realized under the effects of precipitation, flocculation, adsorption and the like.

Drawings

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

fig. 2 is a schematic structural view of a hemisphere of the present invention.

Description of reference numerals:

1-floating ball body, 2-hemisphere, 3-buckle, 4-rectangular clamping groove, 5-fiber strip, 6-filler and 7-water permeable hole.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 and 2, a suspended ball biofilm culturing device with combined packing comprises a floating ball body 1, wherein the floating ball body 1 is composed of two hemispheroids 2 with water permeable holes 7, at least two rectangular clamping grooves 4 are formed in the edge of each hemispheroid 2 at equal intervals, buckles 3 are arranged between every two adjacent rectangular clamping grooves 4, and the number of the rectangular clamping grooves 4 and the number of the buckles 3 are three in the embodiment; the hemispheroid 2 is filled with fiber strips 5 and substances with the density of 2g/cm³-2.4g/cm³The filler 6 in between; the filling ratio of the filler in the floating ball body 1 is 50-70%, and the density of the filler is controlled to be 1g/cm³(ii) a The filler 6 comprises a solid phase novel slow-release carbon source and sponge iron.

The utility model discloses during the use, according to biofilm reactor treatment scale and required biomass how much, control the length that is used for making the used ribbon 5 of filler. Selecting two hemispheroids 2, mixing the fiber strips 5 with the filler 6, filling the mixture into the floating ball body 1, rotating the two hemispheroids 2 to enable the rectangular clamping grooves 4 and the buckles 3 of the two hemispheroids 2 to vertically correspond, and combining the buckles 4 with the rectangular clamping grooves 1 to form the floating ballThe device can be put into the biological membrane treatment equipment for use. When the floating ball is positioned in water, water can permeate into the floating ball through the water permeable holes 7, and the density of the filler is controlled to be 1g/cm³The floating ball can be in a suspension state in water, the floating ball is prevented from floating on the water surface, the contact area of the fiber strips and the water is maximized, and microorganisms are promoted to be attached to the fiber strips. Meanwhile, the filler 6 for mixing the filler sinks at the bottom of the floating ball body 1 and is slowly released into the water. For example, when the filler 6 is a solid-phase novel slow-release carbon source, the external carbon source can be reduced, and the denitrification can be promoted; when the filler is sponge iron, Fe is slowly released²⁺、Fe³⁺And the dephosphorization effect can be realized under the effects of precipitation, flocculation, adsorption and the like.

The utility model discloses biofilm formation experiment in biofilm reactor:

the biofilm formation experiment is carried out in a biofilm reactor with the total effective volume of 120L, the length of a fiber strip 5 in the filler is controlled to be 12-15cm in the experiment, three areas of the reactor are controlled to be an aerobic area, an anaerobic area and an aerobic area respectively by adjusting aeration rate, 60 suspension balls are added into each area, and the filling ratio is about 70%. Simulating rural sewage quality to distribute water, using C₆H₁₂O₆Simulating the external carbon source, NH₄Cl to simulate an externally added nitrogen source, KH₂PO₄Simulating an external phosphorus source with NaHCO₃As a buffering agent, the water quality of inlet water is controlled to be 250mg/L, 4C/N, 6mg/L TP, 7.4 pH and 14.6h HRT, and the biofilm formation experiment is carried out at the water temperature of 18-20 ℃.

And monitoring the water quality indexes of inlet and outlet water of the reactor every day, testing the quality of the biological membrane by using a freeze-drying method, and further calculating the microbial concentration during the operation of the reactor.

The result shows that the utility model can realize good film forming effect in a short time, and the microorganism concentration can reach 10g/L-20g/L during the operation of the reactor.

The utility model discloses simulation sewage treatment's experiment in biofilm reactor:

in the biofilm reactor with the total effective volume of 120L, the carrier of the utility model is used for film hanging and film hangingAfter the membrane is successfully formed, artificial water distribution is adopted to simulate rural sewage for experiment and explore the treatment effect. In the experiment, the length of the fiber strips 5 in the filler is controlled to be 12-15cm, the aeration rate is adjusted to control three areas of the reactor to be an aerobic area, an anaerobic area and an aerobic area respectively, like adding 60 suspension balls into each area, and the filling ratio is about 70%. Controlling the water quality of inlet water to be 400 mg/L and NH₄ ⁺60mg/L of N, 6mg/L of TP, 7.4 of pH and 14.6h of HRT, and the operation is carried out at the water temperature of 18-20 ℃.

Monitoring the water quality indexes of inlet and outlet water of the reactor every day, and recording the treatment effect.

The result shows that the biomembrane reactor using the carrier of the utility model can realize the removal rate of more than 99.5 percent of COD and NH in a short time₄ ⁺Good treatment effect with-N removal rate of more than 97.57 percent.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a suspension ball biofilm culturing device with combined packing, includes the floater body, its characterized in that: the floating ball body is composed of two hemispheroids with water permeable holes, the edge of each hemisphere is provided with at least two rectangular clamping grooves at equal intervals, and a buckle is arranged between every two adjacent rectangular clamping grooves; the hemispheres are filled with fiber strips.

2. The levitation sphere film forming device with the combined filler as recited in claim 1, wherein: the hemisphere is filled with a filler, and the filler is a solid phase novel slow-release carbon source and sponge iron.