CN216946421U

CN216946421U - Underwater diversion type biological medium box for repairing heavily polluted water body

Info

Publication number: CN216946421U
Application number: CN202220528317.2U
Authority: CN
Inventors: 刘亮; 赵燎原; 孙继传
Original assignee: Ningbo Bicheng Ecological Technology Co ltd
Current assignee: Ningbo Bicheng Ecological Technology Co ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-07-12
Anticipated expiration: 2032-03-11

Abstract

The utility model discloses an underwater diversion type biological medium box for repairing heavily polluted water, which comprises: the biological rope packing device comprises a central conduit filled with biological rope packing, wherein the top end of the central conduit is provided with a river water inlet pipe and a bacterial liquid inlet pipe, and the bottom end of the central conduit is provided with a liquid outlet and a sludge outlet; the amplification box is filled with amplification fillers, and a bacteria liquid slow-release port is formed in the amplification box; and the sludge collecting box is arranged at the bottom of the central guide pipe and communicated with the sludge outlet. The two-stage biological method principle of the utility model promotes the reproduction of indigenous microorganisms of the water body, improves the self-purification capacity of the water body, achieves the purification purpose, does not need capital construction in the practical application process, is convenient to install and low in operation cost, and has good long-term use effect by adopting a microbial inoculum leading-in and sludge leading-out mode.

Description

Underwater diversion type biological medium box for repairing heavily polluted water body

Technical Field

The utility model belongs to the technical field of water treatment, and particularly relates to an underwater flow guide type biological medium tank for repairing a heavily polluted water body.

Background

At present, the heavily polluted water bodies in rivers and lakes mainly comprise physical remediation technologies (such as sewage-carrying dredging, aeration and the like), biological remediation and ecological restoration. The physical remediation method mainly means that pollutants in water are removed by measures such as water diversion and desilting, mechanical algae removal and the like, the problem of water pollution cannot be fundamentally solved, and after a period of time, the water quality of the water body is restored to a state before pollution treatment. However, the aquatic plants are slow in culture and growth speed, hardly take effect on heavily polluted water, and have the problem of plant treatment after engineering treatment.

The microbial remediation integration technology utilizes specific microbes to adsorb, convert or degrade pollutants in the water environment, and realizes water environment purification and ecological effect recovery. The repair process may be performed naturally, in situ. The technology has many advantages of safety, economy, practicability, systematicness and the like, and becomes a main technical means for treating water pollution.

The microorganisms are sensitive to the environment due to their own specificity. When a microorganism remediation technology is adopted to remediate a water body, a microorganism culture device laid at the bottom of the water body is generally adopted to domesticate and amplify flora contained in the water body, so that high-concentration bacteria liquid is obtained, and at present, no microorganism culture device with a simple structure and strong practicability exists.

SUMMERY OF THE UTILITY MODEL

The utility model provides an underwater flow guide type biological medium box for repairing a heavily polluted water body, which can fully utilize a carbon source in the water body, promote the propagation of microorganisms in the water body and improve the self-purification capacity of the water body through the structural design.

An underwater flow-guided bio-media tank comprising:

the biological rope packing device comprises a central conduit filled with biological rope packing, wherein the top end of the central conduit is provided with a river water inlet pipe and a bacterial liquid inlet pipe, and the bottom end of the central conduit is provided with a liquid outlet and a sludge outlet;

the amplification box is filled with amplification filling materials and is communicated with the liquid outlet of the central catheter in a sealing way, and a bacteria liquid slow-release port is formed in the amplification box;

and the sludge collecting box is arranged at the bottom of the central guide pipe and communicated with the sludge outlet.

The water body entering the bacteria liquid water inlet pipe is generally oxygen-enriched water body after oxygenation treatment. The biological rope is used for providing a carrier for the growth and aggregation of microorganisms in a water body, the microorganisms are attached to the surface of the biological rope to form a biological membrane under the condition of oxygenation, when the oxygenated water body flows through the biological rope at a certain flow rate, the microorganisms in the biological membrane can absorb and decompose organic matters in the water to purify the water body, the microorganisms are proliferated, the biological membrane is thickened, when the biological membrane is increased to a certain thickness, oxygen diffused to the inside of the biological membrane is limited, the surface of the biological membrane is still in an aerobic state, the inner layer is in an anoxic or even anaerobic state, and finally the biological membrane falls off, and then new biological membranes can continue to grow on the surface of the biological rope, so that the water body is purified in cycles.

According to the utility model, the river water inlet pipe and the bacteria liquid inlet pipe are arranged at the same time, and on one hand, the river water inlet pipe can provide a river environment for the input bacteria liquid, so that the adaptability of the flora is improved; meanwhile, organic pollutants carried by river water provide carbon source nutrients for flora, so the method is particularly suitable for repairing and purifying the highly polluted water body with higher carbon content. The utility model provides an underwater flow guiding type biological medium box for high-carbon water body repair.

Preferably, the device also comprises a domestication pipe provided with biological rope fillers, and two ends of the domestication pipe are respectively communicated with the liquid inlet of the amplification box and the liquid outlet of the central conduit. The bacterial liquid after the primary domestication and purification treatment of the central catheter further enters a domestication pipe, the surface of the biological rope filler in the domestication pipe is further domesticated, cultured and primarily amplified, and finally enters an amplification box for amplification, so that the bacterial liquid with high concentration meeting the requirements is obtained.

Preferably, the top of the central conduit passes through the amplification box, and the end of the central conduit is provided with the river water inlet pipe and the bacterial liquid inlet pipe.

Preferably, the bottom of the central guide pipe is provided with a double-cone structure with the bottom end butted with the bottom end, the upper cone surface of the double-cone structure is provided with the liquid outlet, and the cone top part of the lower cone surface is provided with the sludge outlet. The double-cone structure is a structure with a diamond-shaped section formed by butting the bottom ends of an upper cone body and a lower cone body. The top (cone top) of the upper conical surface faces upwards, and the bottom faces downwards; the bottom of the lower conical surface faces upwards, and the top (conical top) faces downwards. The liquid outlet is arranged on an inclined plane formed by the upper conical surface. The liquid outlet can be provided with one or more, generally a plurality of, and can adopt the even arrangement. The sludge outlet is arranged at the position of the cone top corresponding to the lower conical surface. By adopting the technical scheme, on one hand, the sludge generated in the domestication pipe can be rapidly discharged from the sludge outlet, and meanwhile, the liquid with the strain can be guided to smoothly enter the domestication pipe and the amplification box, so that the strain amplification is realized.

Preferably, the domesticated pipe is sleeved on the central guide pipe, the bottom end of the domesticated pipe is in sealed butt joint with the outer edge of the upper conical surface, and the top end of the domesticated pipe is in butt joint with the bottom of the amplification box.

Preferably, an elastic mud storage ball is arranged in the mud collection box, an inlet of the mud storage ball is in sealed butt joint with a mud outlet through a pipeline, and an outlet of the mud storage ball is in sealed connection with a mud discharge pipe. Through introducing elastic mud storage ball, the clearance and the discharge of mud have been made things convenient for promptly, and along with the increase of mud quantity, the elasticity of elastic ball self also can extrude more smooth discharge of mud simultaneously.

Preferably, the amplification filler is a porous particulate filler. As a further preference, the amplification filler is a ceramsite filler.

The utility model discloses a microorganism culture device laid on the bottom of a riverbed, which comprises a central conduit for receiving a microorganism bacterium agent, a biological domestication box (namely domestication pipe) for biofilm culturing, a biological medium box (amplification pipe) for biological amplification, a sludge collection device, a sludge discharge pipe and the like. In actual use, the device is laid underwater.

In practical use, the diversion type ecological medium box can be installed on an underwater bottom bed through the balance body and the fixing device. The microbial agent enters a central pipeline through a bacteria liquid water inlet pipe and is introduced downwards, then enters a domestication pipe provided with a biological rope, and is subjected to amplification culture through microorganisms such as biofilm formation and the like in a high-concentration river water environment, so that the water quality is preliminarily purified. Part of the biological activated sludge falls off from the biological rope and enters a bottom sludge collecting system (namely a sludge collecting box) below. The water flow flows upwards through the annular sleeve pipe (i.e. the domestication pipe) on the peripheral side, then flows through the biological rope and the special ceramsite, and then is purified and overflowed again, and the microorganisms are brought into the water body to play a role in continuously purifying the water body.

In the utility model, the biological medium for purifying the water body and domesticating and amplifying the bacterial liquid is composed of a biological rope medium and a special granular medium tissue, and the granules have the characteristics of porous structure and high specific surface area, so that microorganisms are enriched on the surface layer of the filter material to form a micro environment with an aerobic-facultative-aerobic-anaerobic composite structure, and the removal and degradation of pollutants by nitrification and denitrification are realized. The micro-pores among the filter materials form a capillary structure, have high water absorption and strong adsorption capacity, are favorable for the load proliferation of microorganisms, protozoa, metazoan and aquatic insects, and build the ecological environment of water body biological diversity. The larger porosity among the filter materials can effectively prevent the device from being blocked by sludge, and the operation and management cost is reduced.

In the utility model, the sludge disposal unit consists of a sludge collection box, a sludge storage ball and a sludge discharge pipe, wherein the sludge collection box is of a cylinder structure, and the sludge ball with elastic performance is laid in the box body and is connected with a sludge discharge hose and the biological medium unit. The device is vertically arranged at the bottom of the riverbed through a balance box, and the center of the bottom is axially fixed. The particle medium is specially made volcanic rock particles with the functions of adsorbing and film-forming microorganisms.

Compared with the prior art, the utility model has the beneficial effects that:

the two-stage biological method principle of the utility model promotes the reproduction of indigenous microorganisms of the water body, improves the self-purification capacity of the water body, achieves the purification purpose, does not need capital construction in the practical application process, is convenient to install and low in operation cost, and has good long-term use effect by adopting a microbial inoculum leading-in and sludge leading-out mode.

The underwater diversion type biological medium box can realize amplification culture of bacterial liquid by utilizing the carbon source of the water body, and is particularly suitable for repairing high-carbon water bodies and the like. The underwater flow guide type biological medium box is simple and compact in overall structure and convenient to install.

Drawings

Fig. 1 is a schematic structural diagram of an underwater flow-guiding type biological medium tank of the utility model.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

as shown in fig. 1, an underwater diversion type biological medium tank for restoring heavily polluted water body comprises: a central conduit 101, a acclimation pipe 102, a sludge collection tank 103, and an amplification tank 104.

Both the central catheter 101 and the acclimation tube 102 are filled with bio-cord fillers 105. The filler filled in the amplification chamber 104 is porous ceramic particles.

The central catheter 101 can be of a cylindrical structure, the top end of the central catheter 101 is provided with an inlet communicated with a river water inlet pipe 111 and a bacterial liquid inlet pipe 112, the inlet is respectively used for being connected with the river water inlet pipe and the bacterial liquid inlet pipe and used for entering river water and inputting bacterial agents, and the bottom end of the central catheter 101 is provided with a liquid outlet 106 and a sludge outlet 107. In practice, the top end of the central guide tube 101 passes through the amplification chamber 104, and the top end is connected to the river water inlet pipe 111 and the bacterial liquid inlet pipe 112.

The bottom of the central conduit 101 is provided with a double-cone structure 108 with a butt joint bottom end, an upper cone surface of the double-cone structure is provided with the liquid outlet 106, and a cone top part of a lower cone surface is provided with the sludge outlet 107. The double-cone structure is a structure with a diamond-shaped cross section formed by butting the bottom ends of an upper cone body and a lower cone body. The top of the upper conical surface faces upwards, and the bottom of the upper conical surface faces downwards; the bottom of the lower conical surface faces upwards, and the top of the lower conical surface faces downwards. The liquid outlet is arranged on the inclined plane formed by the upper conical surface, and a plurality of liquid outlets are generally arranged. The sludge outlet is arranged at the cone top position corresponding to the lower cone surface.

The domestication pipe 102 is a cylindrical structure, is sleeved on the outer wall of the middle lower part of the central guide pipe 101, and biological rope packing is fixed in the domestication pipe 102. The bottom of the domestication pipe 102 is in sealed butt joint with the outer edge of the upper conical surface of the double-cone structure 108, so that a liquid outlet of the central guide pipe 101 is communicated with the bottom of the domestication pipe 102 to realize liquid inlet; the top end of the domestication tube 102 is butted with the bottom of the amplification box 101 and is communicated with the liquid inlet of the amplification box.

The amplification box 10 is filled with amplification filler, namely porous ceramic particles 109, and is provided with a bacteria liquid slow-release port 110 for discharging the bacteria liquid after amplification; the amplification chamber 10 is fixed on the top end of the acclimatization tube 102, and the liquid inlet thereof is communicated with the acclimatization tube 102.

An elastic mud storage ball 113 is arranged in the sludge collection box 103, the inlet of the mud storage ball is in sealed butt joint with the sludge outlet through a pipeline, and the outlet of the mud storage ball is in sealed connection with a mud discharge pipe 114. Through introducing elastic mud storage ball, the clearance and the discharge of mud have been made things convenient for promptly, and along with the increase of mud quantity, the elasticity of elastic ball self also can extrude more smooth discharge of mud simultaneously.

In practical use, the diversion type ecological medium box can be fixed at the bottom of a river or other proper positions through the balance body and the fixing device. The microbial inoculum enters the central catheter 101 through the bacteria liquid inlet pipe 112 and is led downwards, then enters the domestication pipe 102 provided with the biological rope, and is subjected to amplification culture through microorganisms such as biofilm formation and the like in a high-concentration river environment, so that the water quality is primarily purified. Part of the biological activated sludge falls off from the biological rope and enters a sludge collection box below for collection. The water flow flows upwards through the domestication pipe and then flows through the biological ropes and the special ceramic granules to obtain purified overflow again, and the microorganisms are brought into the water body to play a role in continuously purifying the water body. The generated sludge and the like are discharged from the sludge storage ball 113 and the sludge discharge pipe 114.

Claims

1. An underwater deflector-type biomedia tank for remediation of heavily polluted water comprising:

2. The underwater flow-guiding type biological medium tank as claimed in claim 1, wherein the top of the central conduit passes through the amplification tank, and the end of the central conduit is provided with the river water inlet pipe and the bacterial liquid inlet pipe.

3. The underwater flow guide type biological medium box of claim 1, wherein a double-cone structure with butt joint at the bottom end is arranged at the bottom of the central guide pipe, the liquid outlet is arranged on the upper cone surface of the double-cone structure, and the sludge outlet is arranged at the top of the lower cone surface.

4. The underwater flow-guiding type biological medium tank as claimed in claim 3, further comprising a domestication pipe provided with biological rope fillers, wherein two ends of the domestication pipe are respectively communicated with the liquid inlet of the amplification tank and the liquid outlet of the central conduit.

5. The underwater flow-guiding type biological medium tank as claimed in claim 4, wherein the domesticated pipe is sleeved on the central guide pipe, the bottom end of the domesticated pipe is in sealed butt joint with the outer edge of the upper conical surface, and the top end of the domesticated pipe is in butt joint with the bottom of the amplification tank.

6. The underwater flow guide type biological medium box of claim 1, wherein an elastic mud storage ball is arranged in the mud collection box, an inlet of the mud storage ball is in sealing butt joint with a mud outlet through a pipeline, and the outlet of the mud storage ball is in sealing connection with a mud discharge pipe.

7. The underwater flow-guided biomedia tank of claim 1 wherein the expanded filler is a porous particulate filler.

8. The underwater flow-guiding type biological medium tank as claimed in claim 1, wherein the amplification filler is a ceramsite filler.