The novel membrane-biological membrane integrated apparatus of Processing Paper Wastewater
Technical field
The utility model relates to a kind of sewage disposal technology, is specifically related to a kind of fixed biofilm and the integrated sewage treating apparatus that technologies such as acidication, organism fluidization and catalytic oxidation combine, and is used for technological process for the treatment of papermaking.
Background technology
Paper waste is a class suspended substance, chemical oxygen demand (COD) height, has the unmanageable trade effluent of high chroma simultaneously.Some traditional biologic treating techniques that are used for Processing Paper Wastewater comprise activated sludge process, biomembrance process etc., but common activated sludge process and biomembrance process processing efficiency are low, and occupation area of equipment is big, the energy consumption height, and capital construction and daily maintenance cost are big.
The immobilized microorganism sewage disposal technology is more and more used in current dirty water living creature processing technique widely, promptly by certain immobilization technology means, microorganism is fixed on the carrier, make microorganism set growth, help improving microbial numbers in the bio-reactor, improve system processing power and adaptability, shorten the treatment time, reduce processing cost.This device is the characteristic at paper waste, and immobilized microorganism technique is combined with technological advantages such as acidication, organism fluidization and aerobic contact oxidations, assembles a kind of novel biofilm integrated waste disposal plant, is used for technological process for the treatment of papermaking.
The utility model content:
The purpose of this utility model is overcoming the deficiency of conventional art, in conjunction with the advantage of biomembrance process, a kind of novel membrane-biological membrane integrated apparatus of Processing Paper Wastewater is provided, reduced the energy consumption in the sewage treatment process, reduce surplus sludge volume and floor space, improved sewage treating efficiency.
For achieving the above object, the utility model adopts following technical proposals:
A kind of novel membrane-biological membrane integrated apparatus of Processing Paper Wastewater, comprise a reaction casing, it is characterized in that reacting casing and be separated into 5 reaction tanks arranged side by side, form with different mode of communicating up and down between the adjacent reaction pond: first, second reaction tank is the upflow type anaerobic pond, the full poroelasticity filler of interior filling; The 3rd reaction tank is a upflowing, the 4th reaction tank is a downflow system, and these two reaction tanks are aerobic fluidized reaction pond, the filling porous elastic filler of part in the pond, reaction tank bottom one side is arranged aerating apparatus, and the suspending carrier in the drive lower storage reservoir of air is fluidized state; The 5th reaction tank is upflowing aerobic oxidation pond, fills full poroelasticity filler in the pond, and the reaction tank bottom center arranges that aerating apparatus is to aeration aerating in the pond.The waste water horizontal forward plug-flow of each reaction tank of flowing through under the effect of gravity, the dividing plate that has overflow weir in each reaction tank reduces successively along the direction of current.All reaction tanks are respectively established fixedly poroelasticity filler of a porous web plate in two ends up and down, prevent the loss of poroelasticity filler.Each reaction tank bottom is equipped with mud discharging mouth, regularly spoil disposal from each reaction tank.
Above-mentioned first, second, the volume filling ratio of the 5th reaction tank inner chamber poroelasticity filler is 98%-100%, and the volume filling ratio of poroelasticity filler is 35%-45% in the 3rd, the 4th reaction tank, above-mentioned poroelasticity filler is a polyurethane material, cube structure.
The utility model compared with prior art has following advantage:
(1) this device is an associated plant of having gathered kinds of processes, and volume is less, and is simple and reasonable, thereby saved investment and maintenance cost.
(2) this device has adopted the poroelasticity filler, and specific surface area is big, the porosity height, most microorganism and zymin can be fixed on the carrier, microbial immobilized back difficult drop-off has avoided loss of microorganism and carrier to stop up, and the average wet density of poroelasticity filler is 1.00g/cm
3, in water, being suspended state, power consumption is low, and microorganism is fully effectively contacted with waste water, has improved processing efficiency greatly.
(3) the poroelasticity filler forms good fluidized state in this device fluidized reaction pond under the effect of current and air-flow, organism in the waste water and dissolved oxygen in fluidized-bed since the turbulent flow hydraulics and be diffused into rapidly bio-carrier around, the contact area of organism and waste water and the relative movement between waste water and the microbial film have been enlarged, promote the absorption of organism suppressed by vector microbial film, simultaneously also created necessary condition for organic degraded, the speed of biochemical reaction is higher, capacity of resisting impact load is strong, and there is not blocking problem, under the effect of current and air-flow, the aged microbial film can upgrade automatically and come off, and makes it be in efficient state all the time.
(4) this device generation sludge quantity is little, can cancel or reduce the sludge digestion system, saves capital cost.Technological operation is simple, and operational management is convenient, and system recovers to start in back out of service fast, can recover normal operation in a short time.
Description of drawings:
Fig. 1 is the structural representation of an embodiment of the utility model.
Embodiment:
A preferred embodiment accompanying drawings of the present utility model is as follows: as shown in Figure 1, the biofilm integrated device of the utility model is that a reaction casing is separated into 5 reaction tank A, B arranged side by side, C, D, E, form with mode of communicating about the difference between the adjacent reaction pond: reaction tank A and reaction tank B are the upflow type anaerobic pond, the volume filling ratio of the poroelasticity filler of interior filling porous elastic filler 3, two anaerobic reation pool A, B is 98%-100%; Reaction tank C and reaction tank D are aerobic fluidized reaction pond, reaction tank C is a upflowing, reaction tank D is a downflow system, filling porous elastic filler in the pond, the volume filling ratio of poroelasticity filler is 35%-45%, all there are 2 pairs of reaction tank aerations of aeration tube each reaction tank C, D bottom by the dividing plate place, and carrier presents fluidized state in the reaction tank under the effect of air-flow and current; Reaction tank E is upflowing aerobic oxidation pond, filling porous elastic filler 3 in the pond, and the volume filling ratio is 100%, the reaction tank bottom center is arranged aeration aerating in 2 pairs of ponds of aeration tube.There are 8 outlets of an aeration pump to connect each aeration tube 2 of aerating pipelines difference through a control valve 5 connected reaction pond C, D, E.The two ends up and down of each reaction tank respectively are provided with a porous web plate 7, and purpose is in order to prevent the loss of carrier, and the bottom is provided with mud discharging mouth 4, regularly spoil disposal.Waste water is by water-in 1 inflow device, and order is streamed through whole device, and microorganism is degraded to pollutants in waste water matter in the device, and the waste water after the processing is discharged from water outlet 6.
The present invention adopts the immobilized microorganism sewage disposal technology, the poroelasticity filler is a polyurethane material, cube structure, proportion after the carrier biofilm and water are seemingly, in water, be suspended state, and has the big and voidage height of specific surface area, biofilm is easy, lower-price characteristic, device combines the advantage of kinds of processes, adopt anaerobism and aerobic bonded method Processing Paper Wastewater according to the characteristic of paper waste, all there is good effect of removing in the contamination indexs such as suspended substance, chemical oxygen demand (COD) and colourity of waste water.