A kind of CBR biological sewage treatment device
Technical field
The utility model belongs to environment protection sewage treatment unit technical field, is specifically related to a kind of CBR biological sewage treatment device.
Background technology
In current sewage disposal, aerobic-anoxic biochemical processing method is preposition nitrated or rearmounted nitrated, wherein in Aerobic Pond treating part adopt activated sludge process and embrane method process, activated sludge process novel is both at home and abroad modified oxidized ditch, SBR, modification SBR(DAT-IAT more), MBR or traditional activated sludge process; What embrane method process application was more is MBBR or biological embrane method.
No matter which kind of mode is Aerobic Pond part adopt, its offering oxygen way communicates, be mainly rotary disk aerator, inverted umbrella-shaped aeration machine, jetting type aeration mode or roots blower+micro-pore aeration machine mode, and emerging Ai Er oxygen class aerator, hose type aerator and submersible type stir aerator.And the mud-water separation many employings natural sedimentation after biochemical treatment, sludge discharge way adopts mechanical dredge and water pump spoil disposal and utilizes gravity nature spoil disposal, in order to improve mud-water separation speed and reduce floor space, mostly adopt the mode adding coagulant aids and inclined tube or swash plate are set.
From foregoing, traditional treatment process all has respective advantage, and in order to make its advantage amplify, shortcoming reduces as far as possible or gets rid of, and is necessary the CBR biological sewage treatment device researching and developing a kind of efficient energy-saving.
Summary of the invention
The technical problem that the utility model solves there is provided a kind of efficient energy-saving biological sewage treatment device, this device integrates the structure formation of automatic sludge returning formula MBBR technique and the advantage of DAT-IAT process operation mode, overcomes automatic sludge returning formula MBBR technique and removes the shortcomings such as the large and complicated operation of ammonia nitrogen poor effect and DAT-IAT technique floor space.In addition, when submersible high-efficiency energy-saving stirs the effect that can be produced as sewage oxygen supply when aerator is combined with gas blower, stirring action can be produced when used alone, these two kinds effects are the core requirement that efficient energy-saving CBR biologic process for treating sewage runs just, PLC controls automatically, without the need to arranging the equipment that other routine must configure, thus reach efficient energy-saving and effect easy and simple to handle, and high-density tube settler is organically combined by reasonable Arrangement and center cell, reach the object saved floor occupying area.
The utility model adopts following technical scheme for solving the problems of the technologies described above, a kind of CBR biological sewage treatment device, it is characterized in that comprising treatment tank, the top for the treatment of tank is provided with water distributor, this water distributor is connected with pretreatment unit by water inlet pipe, the bio-reaction zone that the inside for the treatment of tank is divided into bottom to communicate by dividing plate and mud disengaging zone, the inclined tube or swash plate that reclaim mud is provided with in mud disengaging zone, be provided with submersible high-efficiency energy-saving in bio-reaction zone and stir aerator, this submersible high-efficiency energy-saving is stirred aerator and is connected with gas blower by air-supply duct.
Further restriction, the sidewall of described treatment tank is provided with the dissolved oxygen meter measuring biochemical reaction zone dissolved oxygen.
Further restriction, described submersible high-efficiency energy-saving stirs aerator and is connected with the controller be arranged on treatment tank sidewall.
The operation method of CBR biological sewage treatment device described in the utility model, it is characterized in that the rearmounted operation scheme of denitrification is: (1) does not need dephosphorization, but need denitrogenation, when the water level in treatment tank reaches design water level, start submersible high-efficiency energy-saving stirring aerator and stir, after reaching design hypoxic exposure, denitrification process completes, start gas blower oxygen supply, carry out nitration treatment, its cycle of operation depends on the design time of nitrification and denitrification; (2) do not need dephosphorization and denitrogenation, when the water level in treatment tank reaches design water level, start gas blower oxygen supply, and start submersible high-efficiency energy-saving stirring aerator, carry out Wastewater Treated by Activated Sludge Process continuously; (3) dephosphorization is needed to denitrogenate, treatment tank carries out releasing phosphorus, after reaching the design anaerobism time, start gas blower, and start submersible high-efficiency energy-saving stirring aerator, turn off the blast after reaching anoxic requirement machine, keep submersible high-efficiency energy-saving to stir aerator operation to stir, after reaching design hypoxic exposure, denitrification process completes, and then starts gas blower oxygen supply, keeps submersible high-efficiency energy-saving to stir aerator and runs, carry out nitration treatment, its cycle of operation is depended on and releases phosphorus, denitrification and nitrated design time.
The utility model device has that structure is simple, efficient energy-saving, level of automation are high, easy and simple to handle, install and easy to maintenance, use the plurality of advantages such as environmental protection and investment savings, cater to national energy-saving reduction of discharging policy, there is good application prospect.The operation method of this device is according to the water yield and type set structure type, there are structure containing water and steel two kinds, therefore the scope of application is comparatively wide, such as Small Urban sanitary sewage, Novel community/domestic sewage in rural areas, every profession and trade plant area sanitary sewage, breeding wastewater, butchers and Meat processing waste water, hospital sewage, food-processing, paper industry, grain distillery etc.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model CBR biological sewage treatment device, Fig. 2 be the utility model CBR biological sewage treatment device vertical view, Fig. 3 is the process flow sheet of the preposition operation scheme of the utility model denitrification, and Fig. 4 is the process flow sheet of the rearmounted operation scheme of the utility model denitrification.
Drawing illustrates: 1, treatment tank, 2, water distributor, 3, water inlet pipe, 4, dividing plate, 5, bio-reaction zone, 6, mud disengaging zone, 7, swash plate, 8, submersible high-efficiency energy-saving stirs aerator, 9, air-supply duct, 10, dissolved oxygen meter, 11, controller.
Embodiment
Describe particular content of the present utility model by reference to the accompanying drawings in detail.A kind of CBR biological sewage treatment device, comprise treatment tank 1, the top for the treatment of tank 1 is provided with water distributor 2, this water distributor 2 is connected with pretreatment unit by water inlet pipe 3, the bio-reaction zone 5 that the inside for the treatment of tank 1 is divided into bottom to communicate by dividing plate 4 and mud disengaging zone 6, be provided with the swash plate 7 reclaiming mud in mud disengaging zone 6, be provided with submersible high-efficiency energy-saving and stir aerator 8 in bio-reaction zone 6, this submersible high-efficiency energy-saving is stirred aerator 8 and is connected with gas blower by air-supply duct 9.The sidewall of described treatment tank 1 is provided with the dissolved oxygen meter 10 measuring biochemical reaction zone dissolved oxygen.Described submersible high-efficiency energy-saving stirs aerator 8 and is connected with the controller 11 be arranged on treatment tank 1 sidewall.
Operation method described in the utility model is divided into denitrification pre-process and denitrification postpositive disposal two kinds of modes.
Embodiment 1
Denitrification pre-process operation scheme, according to the design and operation mode that is divided three classes the need of denitrogenation dephosphorizing:
(1) dephosphorization is not needed, but need denitrogenation, when the water level in treatment tank reaches design water level, start submersible high-efficiency energy-saving stirring aerator to stir, after reaching design hypoxic exposure, denitrification process completes, and starts gas blower oxygen supply, carry out nitration treatment, its cycle of operation depends on the design time of nitrification and denitrification;
(2) do not need dephosphorization and denitrogenation, when the water level in treatment tank reaches design water level, start gas blower oxygen supply, and start submersible high-efficiency energy-saving stirring aerator, carry out Wastewater Treated by Activated Sludge Process continuously;
(3) dephosphorization is needed to denitrogenate, treatment tank carries out releasing phosphorus, after reaching the design anaerobism time, start gas blower, and start submersible high-efficiency energy-saving stirring aerator, turn off the blast after reaching anoxic requirement machine, keep submersible high-efficiency energy-saving to stir aerator operation to stir, after reaching design hypoxic exposure, denitrification process completes, and then starts gas blower oxygen supply, keeps submersible high-efficiency energy-saving to stir aerator and runs, carry out nitration treatment, its cycle of operation is depended on and releases phosphorus, denitrification and nitrated design time.
Embodiment 2
Denitrification postpositive disposal operation scheme, according to the design and operation mode that is divided three classes the need of denitrogenation dephosphorizing:
(1) dephosphorization is not needed, but need denitrogenation, when the water level in treatment tank reaches design water level, start submersible high-efficiency energy-saving stirring aerator to stir, after reaching design hypoxic exposure, denitrification process completes, and starts gas blower oxygen supply, carry out nitration treatment, its cycle of operation depends on the design time of nitrification and denitrification;
(2) do not need dephosphorization and denitrogenation, when the water level in treatment tank reaches design water level, start gas blower oxygen supply, and start submersible high-efficiency energy-saving stirring aerator, carry out Wastewater Treated by Activated Sludge Process continuously;
(3) dephosphorization is needed to denitrogenate, treatment tank carries out releasing phosphorus, after reaching the design anaerobism time, start gas blower, and start submersible high-efficiency energy-saving stirring aerator, turn off the blast after reaching anoxic requirement machine, keep submersible high-efficiency energy-saving to stir aerator operation to stir, after reaching design hypoxic exposure, denitrification process completes, and then starts gas blower oxygen supply, keeps submersible high-efficiency energy-saving to stir aerator and runs, carry out nitration treatment, its cycle of operation is depended on and releases phosphorus, denitrification and nitrated design time.
The difference of above-mentioned two macrospecies operation scheme is that denitrification is preposition or denitrification is rearmounted, and it arranges the content that order depends on ammonia nitrogen and total nitrogen in former water.In addition, the equipment that system cloud gray model whole process relates to only has gas blower and submersible high-efficiency energy-saving to stir aerator, can realize fully automatic operation by PLC automatic control.
The investment of this operation scheme is equally divided into technique structures, processing unit, process control system and supporting illumination section with traditional technology.Technique structures: due to this technique novel design structurally and equipment high efficiency, floor space is less, and according to the analog calculation of the various water yield, floor space is the 50-75% of traditional technology.In addition, the operation content due to this technique completes in a pond, do not have function division, so subregion partition wall reduces in a large number.Processing unit: the equipment arranged due to technique is only gas blower and submersible high-efficiency energy-saving stirring aerator, and technique oxygen requirement is lower, more traditional Equipments Setting (gas blower, aerating system, diving mixer, Digestive system reflux pump, settling tank equipment or water decanter etc.) reduces in a large number.Process control system: due to device category and comparatively small amt, electrical cable also reduces thereupon.
Working cost comprises the electricity charge, labor wage, upkeep cost.The electricity charge: this process operation expense mainly electricity charge, and electrical equipment has gas blower and submersible high-efficiency energy-saving to stir aerator.Labor wage: level of automation is high, personnel depaly requires few.Maintenance and repair takes: equipment performance is reliable, and work-ing life is longer, affects less by other external environments, and therefore maintaining number of times is less; And without the need to sewage emptying and more maintenance tool and utility appliance during maintenance, therefore maintenance cycle is short, maintenance cost is low.
More than show and describe ultimate principle of the present utility model; principal character and advantage; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall into claimed scope of the present utility model.