CN111333174A - Flat felt FCP biofilm carrier of fixed bed found fine hair - Google Patents

Abstract

The invention discloses a FCP biological filler of a fixed bed raised flat felt, which comprises a raised cut pile fabric, wherein the raised cut pile fabric is formed by interweaving two warps and wefts, the warps comprise ground warps and wool warps, the ground warps and the wefts are interwoven into a felt, and the wool warps form 20-40 mm long raised piles on the felt. The filler has dual variability of oxygen deficiency and oxygen deficiency during mud attaching, is easy to remove phosphorus and nitrogen, and cannot be blocked; the filler has oleophylic and hydrophilic properties, has good splitting effect on aeration bubbles, high oxygen storage function, strong adsorption capacity, high filler bioactivity, high mass transfer efficiency, convenient installation and long service life.

Description

Flat felt FCP biofilm carrier of fixed bed found fine hair

Technical Field

The invention relates to the technical field of sewage fixed bed packing, in particular to a fixed bed raised flat felt FCP biological packing.

Background

With the increasing awareness of environmental protection, people have more and more intense protection on water resources, and the problem of sewage discharge needs to be solved in the aspect of water resource protection. Need use some biological fillers in order to increase the treatment effect to sewage when handling sewage, and current filler is inconvenient when fixed, need use the frame to bind, blocks up easily moreover (for example soft filler easily blocks up the combination filler and easily blocks up), and the live time is generally about 3 years, and the live time is shorter, is difficult for adhering to biological mud (elastic filler and suspension filler biofilm culturing are slower).

Disclosure of Invention

The invention aims to provide a FCP biological filler of a fixed bed raised flat felt, which aims to solve the problem of high fat content of cooked quails in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the FCP biological filler comprises a vertical pile cut pile fabric which is formed by interweaving two warp yarns and weft yarns.

Preferably, the warp yarns include ground warp yarns and wool warp yarns.

A method for manufacturing FCP biological filler of a vertical pile flat felt of a fixed bed comprises the following steps:

the first step is as follows: interweaving the ground warp yarns and the weft yarns into a carpet;

the second step is that: the wool warp yarns form long raised piles on the carpet.

Preferably, the length of the long raised piles is 20 to 40 mm.

Compared with the prior art, the invention has the beneficial effects that:

the invention has good water quality purifying effect, the filler surface simulates the omnibearing 360-degree swimming shape of natural aquatic plants, and the biological activated sludge is easy to attach. The filler has dual variability of oxygen deficiency and oxygen deficiency during mud attaching, is easy to remove phosphorus and nitrogen, and cannot be blocked; the filler has oleophylic and hydrophilic properties, has good splitting effect on aeration bubbles, high oxygen storage function, strong adsorption capacity, high filler bioactivity, high mass transfer efficiency, convenient installation and long service life.

Detailed Description

The embodiments of the present application solve the problems of inconvenient installation, easy blockage and uneasy attachment of biological sludge of the existing biological filler by providing a fixed bed raised flat felt FCP biological filler, which will be clearly and completely described below in conjunction with the technical solutions of the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The FCP biological filler comprises a vertical pile cut pile fabric, wherein the vertical pile cut pile fabric is formed by interweaving two warp yarns and weft yarns, the warp yarns comprise ground warp yarns and pile warp yarns, the ground warp yarns and the weft yarns are interwoven into a floor mat, and the pile warp yarns form 20-40 mm long vertical piles on the floor mat.

When the filler is manufactured, the filler is modified by an ionized material and blended by hydrophilic macromolecules, and industrial wastewater takes anions as main components, so that the filler is modified by a cationized material, and the surface of the filler is provided with high-energy positive charges, so that the process of attaching and fixing microorganisms on the surface of a carrier is easier to perform. Therefore, compared with other fillers, the filler can improve the water purification efficiency by 70-80%.

When the biological filler is in water, the surface of the biological filler simulates the omnibearing 360-degree swimming form of natural aquatic weeds, activated sludge is easy to store, the filler has dual variability of oxygen deficiency and oxygen deficiency during sludge attachment, phosphorus and nitrogen removal is easy, blockage is avoided, impact load is resisted, and the biological filler has strong adaptability to water quality and water quantity change; the oxygen storage function is high, the adsorption capacity is strong, the biological activity is high, the mass transfer efficiency is high, the installation is convenient, the service life is long, the oleophylic and hydrophilic effects are achieved, the aeration bubbles are well split, and meanwhile, due to the impulse of water flow and air flow, the biological membrane on the filler is continuously updated, the biological activity is high, and the mass transfer efficiency is high; especially, the installation is very convenient, does not need the support, only need fixed four angles can, and life is in 10 years.

The hundreds of millions of vertical piles on the surface of the filler enable the filler to have a large specific surface area, a large amount of microorganisms and large processing capacity, and the purification function is remarkably improved, which is incomparable with other traditional fillers; the high elasticity of the filler and the swinging characteristic in sewage can ensure that the biological film on the surface of the filler can keep high activity for a long time; the raised flat felt structure of the filler enables microorganisms on the surface to carry out high-efficiency mass transfer with organic matters in water; the shape of the natural aquatic plant is simulated, so that the sludge is easy to attach and the blockage is prevented; the filler is formed by interweaving, so that the filler can swing felts in any direction, is suitable for sewage treatment facilities in various shapes and various felt gas and felt water forms, can enable all filler-loaded bacterium surfaces to become optimal working surfaces, realizes the anoxic membrane flora of the filler at the bottom layer of the filler when mud is attached, and realizes the special structures of the aerobic membrane flora and the void layer of the filler at the outer layer.

In addition, the filler is made of an ionized modified high molecular substance, so that the filler is easier to attach and grow microorganisms than other fillers, is fast in film formation, has good development of a biological film, has rich biological communities, forms food chains such as bacteria, algae, protozoa and metazoans, and is degraded into final products such as CO2, H2O, NH3-N, NOx-N and PO4 by the migration and conversion of organic matters, nutrients and the like contained in sewage through the contact with a plurality of food chains of the biological film, and the final products are removed through the processes of nitrification, denitrification, assimilation and the like, so that the high purification efficiency is achieved; the time of debugging is saved, most supports can be saved when the filler is installed, the installation cost is saved, the filler is easy to be matched with other equipment for use, a certain inclination angle felt can be arranged on the filler, the separation area of the separation area is increased, and the hydraulic load is effectively reduced. The sewage in the earlier stage passes through the filler in a vertical flow manner, so that the filler layer and the attached sludge have the effects of filtering and adsorbing the sewage entering the separation area, are not easy to fall off, are resistant to acid and alkali corrosion and have long service life; when the biological film layer on the filler reaches a certain thickness and the vertical flow resistance is increased, the filler layer plays a role of an inclined plate, the surface area of the separation area is increased, the hydraulic load is effectively reduced, and the effluent quality is improved.

The filler has good sludge settling property and is easy for solid-liquid separation; the sludge amount is small, and the sludge treatment and disposal cost is reduced. Surface load of 1.5-2.0 m/m²hr and at a rate of 2.0-3.0 m/m²Under the condition of hr, a better separation effect can be achieved, the amount of the residual sludge is reduced by more than 30% compared with that of the conventional activated sludge method, an aged biological film on the filler can be peeled off after a longer period, and the peeled biological film is settled to the bottom of the tank because the biological film is dense, so that the biomass of a reaction zone is effectively increased, the solid-liquid separation is easy, and the sludge settling performance is good; the system generates less sludge, and reduces the sludge treatment and disposal cost. The filler biological membrane efficiently consumes bacteria, algae and protozoa in a long food chain, generates metazoan to greatly reduce biomass, so that the amount of residual sludge is small, only 1/20 of an activated sludge process is used, the sludge can be discharged once in 1-2 months, the amount is small, the sludge can be treated and utilized on site, the operation and management are easy, the sludge bulking problem is reduced, the sludge backflow and the filler backwashing are not needed, and the filler biological membrane has the advantages of greatly reducing the biomass, reducing the residual sludge amount, being only used for 1/20 of the activated sludge process, and being capable of treating andhas stronger biodegradability, and can reduce the civil engineering investment by more than 35 percent and the engineering occupied area by more than 40 percent.

Technical parameters Table 1

Technical parameters table 2

Comparison with other fillers Table 3

When the filler is used for polluting the aquatic weed-imitated raised flat felt filler in rivers, ponds and lakes, the lower end of the filler is fixed at the bottom of a river bed or the bottom of a pond or the bottom of a lake, and the upper end of the filler is in a free floating state. When the river water is purified, clarified and transparent, the fillers are green due to the fact that algae are attached to the surfaces of the fillers, and the fillers float left and right like aquatic weeds and have certain ornamental value.

When the filler is used in an active biological membrane process treatment pool (or called biological contact oxidation pool) of an urban sewage and industrial wastewater treatment plant and station, the upper end and the lower end of the filler are fixedly suspended to form a row of hanging felts, and pollutants in the sewage are fully contacted with biological membranes growing on the hanging felts and are subjected to biodegradation and assimilation through the stirring and mixing action of an aeration system in the flowing process of the sewage in the pool. The biochemical pool volume is reduced by more than 35 percent when in use; the processing capacity of the system is improved, and the load of the secondary sedimentation tank is not increased. The impact load resistance of the system is improved; the mass transfer effect is good, the oxygen utilization rate is improved by more than 35%, and the energy consumption is reduced. The application of the method to an aerobic process can increase the sludge concentration of a filler area by 2000-3500 mg/L.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a flat felt FCP biofilm carrier of fixed bed found fine hair which characterized in that: the velvet pile fabric is formed by interweaving two warps and wefts.

2. A fixed bed raised flat felt FCP biofilm filler as claimed in claim 1, wherein: the warp yarns comprise ground warp yarns and wool warp yarns.

3. The method for manufacturing the FCP biological filler of the fixed bed raised flat felt according to claim 2 comprises the following steps:

the first step is as follows: interweaving the ground warp yarns and the weft yarns into a carpet;

the second step is that: the wool warp yarns form long raised piles on the carpet.

4. A fixed bed raised flat felt FCP biofilm filler as claimed in claim 3, wherein: the length of the long raised piles is 20-40 mm.