Local circulating oxygen supply biomembrane reacting device
A reaction device, biofilm technology, applied in aerobic and anaerobic process treatment, water/sewage multi-stage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problem of large sludge volume, high energy consumption and complex process and other problems, to achieve the effect of small sludge production, low energy consumption and wide application.
Inactive Publication Date: 2012-07-11
TIANJIN INST OF AGRI RESOURCES & ENVIRONMENTAL
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Problems solved by technology
Currently commonly used technologies such as A / A / O and SBR have disadvantages such as complex process, high energy consumption and large amount of sludge generated.
Method used
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[0016] Below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation, structure and features provided by the present invention are described in detail as follows:
[0017] like figure 1 , figure 2 As shown, a partial circulation oxygen supply biofilm reaction device, the device is formed by connecting two parts of the partial circulation aeration tank 1 and the sedimentation tank 2 to form a whole;
[0018] An aeration disc 1-3 and an annular deflector 1-2 are arranged in the center of the partial circulation aeration tank 1, and the partial circulation aeration tank is filled with suspended biological balls 1-4; an overflow is set above the annular deflector 1-2 The weir 1-5, the aeration pan 1-3 is arranged inside under the annular deflector 1-2; the water inlet pipe 1-1 passes through the side wall of the partial circulation aeration tank and is fixed on the side wall with the water inlet pipe reinforcement 1-8, The other end ...
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Abstract
The invention relates to a local circulating oxygen supply biomembrane reacting device which comprises a local circulating aeration basin and a settling pond that are connected, wherein the center of the local circulating aeration basin is provided with an oxygen supply device and an annular guide plate, bio-packing is filled in the local circulating aeration basin, and an overflow weir is arranged above the guide plate; the upper end of a foot support of the annular guide plate is connected with the annular guide plate and forms a sludge reflux gap with the bottom of the basin; the settling pond is in an incline plate type, and is separated from the local circulating aeration basin by using a baffle plate, effluent enters an overflow groove through the overflow weir and is discharged from a water guide pipe through an overflow hole, a sewage circulating pump is arranged at the tail end of the overflow weir of the settling pond, part of effluent returns and is mixed with inflow water through a return pipe, and then mixture of the effluent and the inflow water enters the local circulating aeration basin, the bottom of a joint of the local circulating aeration basin and the settlingpond is provided with a sludge discharging hole, and sludge in the settling pond returns to the sludge discharging hole to be periodically discharged. The device can be used for rapidly treating and recycling dispersed domestic sewage and animal culture wastewater with high organic matters in harmless and recycling manners.
Description
technical field [0001] The invention relates to a sewage advanced treatment device, in particular to a local circulation oxygen supply biofilm reaction device with low power consumption and low sludge volume capable of treating waste water with different concentrations and good biochemical properties. Background technique [0002] At present, with the rapid development of my country's economy, the huge demand for water resources and energy, and the increasing pressure on the environment from untreated sewage have seriously damaged the ecological balance of rivers and lakes, polluted a large amount of cultivated land, and further improved New facilities for resource utilization of sewage with reasonable design and simple management are even more important. The commonly used technologies such as A / A / O and SBR have disadvantages such as complex process, high energy consumption and large amount of sludge generated. [0003] Therefore, how to carry out harmless treatment and reso...
Claims
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IPC IPC(8): C02F9/14C02F3/30C02F1/52
Inventor 吴迪高贤彪赵琳娜何宗均
Owner TIANJIN INST OF AGRI RESOURCES & ENVIRONMENTAL