CN202246234U

CN202246234U - Cylindrical biological contact oxidation reactor for hollow porous fiber packing

Info

Publication number: CN202246234U
Application number: CN2011203846606U
Authority: CN
Inventors: 陈明; 李娜; 陈勇生; 朱丽梅; 华河林
Original assignee: Nanchang Hangkong University
Current assignee: Nanchang Hangkong University
Priority date: 2011-10-12
Filing date: 2011-10-12
Publication date: 2012-05-30
Anticipated expiration: 2021-10-12

Abstract

The utility model relates to a cylindrical biological contact oxidation reactor for hollow porous fiber packing. A biological filter is cylindrical; a water inlet is formed on the lower side, a water outlet is formed on the upper side, and the water inlet and the water outlet are opened opposite; a group of fiber yarn packing components are arranged in the biological filter; the membrane-attached porous hollow fiber packing is adopted, one end of the packing is opened, and the other end of the packing is enclosed; and the opening end is fixed to a cylindrical bottom porous plate by bonding glue and is connected with an air pipe, and the other end of the packing is freely spread and is fixed at the upper end of the cylinder. The cylindrical biological contact oxidation reactor fulfills the aim of three-in-one functions, namely filtration, aeration and microbial carriers. Air is introduced from the opening end of the hollow fiber membrane and is subjected to micro-aeration on each fiber yarn. Water flows from the bottom up and flows through vertical to the fiber yarn packing components in a form of overall push flow. Gas permeates the membrane and then is attached onto a biological membrane on the outer wall of a membrane to consume oxygen, and a water body is purified by the attached biological membrane. The water is in a flowing state overall, and the effective time that the water body flows through the filter is controlled by regulating the water flow at the water inlet and overflow at the water outlet so as to purify the water body.

Description

A kind of hollow multiporous fiber filler drum type brake biological contact oxidation reactor

Technical field

The utility model relates to a kind of hollow multiporous fiber filler drum type brake biological contact oxidation reactor.

Background technology

Biological contact oxidation reactor is to integrate bio-oxidation and hold back suspended solids; Saved follow-up secondary sedimentation basins; Treatment process is simplified; In addition, biological contact oxidation reactor technology organism volumetric loading is high, hydraulic load is big, hydraulic detention time is short, required initial cost is few, energy consumption and running cost is low, this technology effluent quality height simultaneously.Filtrate is the key component of biological contact oxidation reactor, and the effect of biological contact oxidation reactor is had direct influence, also has influence on the structure formation and the cost of biological contact oxidation reactor simultaneously.Because fabrication and processing and price reasons, the contact filler of domestic present employing mainly contains glass reinforced plastic or plastic honeycomb filler, three-dimensional wavy filler, soft cellulose filler, semi soft packing and irregular particulate filter (sand, rubble, slag, coke, hard coal) etc.Glass reinforced plastic or plastic filler smooth surface, the microbial film poor adhesive force is prone to wear out, and often is easy to generate the obstruction of filler in various degree in actual use; Flow-shape in the soft-filler is undesirable, is prone to bonded together by microbial film, produces the balling phenomenon, and its effective surface area is greatly reduced, and then produces the anaerobism phenomenon in the inside of balling, influences treatment effect.Irregular particulate filler flow resistance is big, is easy to cause the filter tank obstruction.China has also carried out little Pollution Study of using sheet haydite processing water source in recent years; The sheet haydite belongs to irregular particulate filler; Although carrier surface forming biofilm property is good; But have that flow resistance is big, porosity is little, easy blocking, intensity difference, be prone to broken, not anti-defective such as wash away, limited little pollution that it only can be applied to source water and handled, and be not suitable for WWT.There is certain defective just because of these traditional contact fillers, limited the application of biological contact oxidation reactor in wastewater treatment in China, therefore select for use a kind of good filter tank filtrate very crucial.

Summary of the invention

The purpose of the utility model is to adopt a kind of hollow multiporous fiber filler drum type brake biological contact oxidation reactor; Carry out aeration in porous hollow fiber inside; Utilize the tubular fibre vesicular structure to make the air pressure inside constant aerating even; In circular filter tank, distributing the uniformly hollow fiber bundle of attached biological film reaches the three-in-one effect of aeration, microorganic adhesion and filtrate.The present invention overcomes the shortcoming that general biological contact oxidation reactor filler is prone to stop up, need frequent back flushing, improves oxygen mass transfer efficient, increases current journey and treatment time of water.This biological contact oxidation reactor is simple in structure, satisfy mikrobe to the oxygen demand in the conserve space and the energy, can simultaneously efficiently remove COD and nitrogen, improve effluent quality.

The utility model is realized by following scheme: it comprises water pump, flow director, water intaking valve, water-in, water level sensor, air outlet, hollow fibre filament assembly, water outlet, air pump, porous plate, biological filter, it is characterized in that the biological filter is a right cylinder, and water-in is following; Water outlet is in last both opposed openings, and the built-in one group of hollow fibre filament assembly in biological filter, hollow fibre filament assembly adopt membrane porous hollow fiber silk; Hollow fibre filament one end opening, hollow fibre filament the other end sealing, opening end with the assembly glue hydropexis on the cylindrical base porous plate; Link to each other with air pump through inlet mouth; The other end freely scatters and is fixed on the cylinder upper end, and said water inlet is connected with water intaking valve, connects water pump near water intaking valve; Water pump connection traffic unit; Flow director connects water level sensor, and water level sensor is installed in the upper end of biological filter, and the air outlet is left on the top of biological filter.Make three-in-one purpose, i.e. filtration, aeration, microbe carrier are three-in-one.Air feeds little exposing on each fiber yarn from the opening end of hollow-fibre membrane.Current so that down and on, the form of whole plug-flow flows through perpendicular to the fiber yarn assembly, gas-permeable is attached the microbial film consume oxygen at the film outer wall through behind the film, utilizes the biomembrane purification water body that adheres to.

Adopt spun glass tubular fibre material; Get one section opening of one section sealing of hollow fibre filament of proper amt; Opening end with the assembly glue hydropexis in lower end, circular biological filter the other end loose be fixed on filter tank upper end (because this hollow fibre filament density is greater than water, and loose fixingly can not influence filametntary flowability) in order to avoid be deposited on bottom influences filter tank, filter tank effect.Air gets in the fiber yarn from opening end; Current are from bottom to top with certain angle fiber yarn group of flowing through; Because the dense distribution property of fiber yarn group, the solid particulate in the sewage is retained down, because there is the supply of oxygen on filametntary aeration surface; Mikrobe utilizes the metabolic reaction degraded water quality of mikrobe simultaneously just attached to forming the oxygen that the consumption of one deck microbial film exposes after fiber yarn the preceding paragraph time.

The utility model has the advantages that the mode that makes progress below the current flows, control the treatment time of sewage, be beneficial to holding back of mikrobe perpendicular to fiber yarn simultaneously in the filter tank through regulating flooding velocity.In addition, the specific surface area of hollow-fibre membrane is big especially, has improved the sludge concentration in the unit space, and foamless oxygen-supplying is adopted in this invention, and the mass-transfer efficiency of oxygen also improves greatly, can treatment of high concentration organic waste water.In addition, it is flow-like that filtrate is in water, is difficult for stopping up, and can reduce the back flushing frequency, and save energy reduces floor space.

Description of drawings

Fig. 1 is circular porous plate (intensive and be uniform-distribution with the small sircle hole of somewhat larger in diameter in the fiber yarn diameter).

Fig. 2 is ready-made fiber yarn assembly.

Fig. 3 is the utility model structural representation.

Embodiment

Like Fig. 1,2, shown in 3, all component installs the first operation in back, hollow fibre filament one end opening; On cylindrical base porous plate 10, sewage is extracted out through water pump 1 with the assembly glue hydropexis for the sealing of the hollow fibre filament the other end, opening end; Through the water intaking valve 3 opened, get into circular biological filter 11 through water-in 4, the intensive hollow fibre filament assembly 7 of arranging in the filter tank; Sewage to down and on, suspended solids is tackled sewage by intensive fiber yarn and is passed through, when current when water outlet 8 overflows; The water level sensor 5 that is contained in same water level is sensed change of level, conveys to flow director 2 simultaneously, and flow director 2 is started working; The revolution that begins to regulate water pump 1 reduces flow velocity, and the time that makes sewage in the filter tank, stop is sufficient, simultaneously air pump 9 air admission of starting working; The fiber yarn assembly begins little aeration, and the surface begins to have the supply of oxygen, and the gas of producing is 6 discharges through the air outlet.Because the supply of oxygen, the mikrobe in the water body begin to form one deck microbial film after for some time attached to the fiber yarn surface, utilize the metabolic reaction of mikrobe to handle water body.

Claims

1. hollow multiporous fiber filler drum type brake biological contact oxidation reactor, it comprises water pump, flow director, water intaking valve, water-in, water level sensor, air outlet, hollow fibre filament assembly, water outlet, air pump, porous plate, biological filter, it is characterized in that the biological filter is a right cylinder; Water-in is down, and water outlet is in last both opposed openings, the built-in one group of hollow fibre filament assembly in biological filter; The hollow fibre filament assembly adopts membrane porous hollow fiber silk, hollow fibre filament one end opening, the sealing of the hollow fibre filament the other end; Opening end, links to each other with air pump through inlet mouth on the cylindrical base porous plate with the assembly glue hydropexis, and the other end freely scatters and is fixed on the cylinder upper end; Said water inlet is connected with water intaking valve; Connect water pump near water intaking valve, water pump connection traffic unit, flow director connects water level sensor; Water level sensor is installed in the upper end of biological filter, and the air outlet is left on the top of biological filter.