Continuous flow intermittent aeration type biological film nitrogen and phosphorus removal device and method

A biological aeration, nitrogen and phosphorus removal technology, applied in the field of sewage treatment, can solve the problems of high cost of sludge treatment, large amount of residual sludge, long process chain, etc., to improve the utilization rate of carbon sources, high degree of automation, The effect of a short process chain

Pending Publication Date: 2018-04-17
CENT & SOUTHERN CHINA MUNICIPAL ENG DESIGN & RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The latter is the same as the activated sludge method, which requires the reflux of nitrification liquid and sludge reflux, resulting in a large amount of residual sludge and high sludge treatment costs
Both have the characteristics of long process chain, many structures and large land occupation

Method used

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  • Continuous flow intermittent aeration type biological film nitrogen and phosphorus removal device and method

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Embodiment 1

[0063] This embodiment adopts a continuous flow intermittent aeration biofilm denitrification and phosphorus removal device, as attached figure 1 As shown, it includes a regulating tank 1 connected in sequence, and an integrated reactor 2. The reactor 2 includes a plurality of reaction zones 201 and a water outlet zone 202. A porous partition 3 is horizontally arranged in the reaction zone 201.

[0064] The interior of the reaction zone 201 is located below the porous partition 3 and is provided with a reaction zone water inlet 4 and a reaction zone air inlet 5. The reaction zone water inlet 4 is provided with a water distribution mechanism 6, and the reaction zone air inlet 5 is provided with a Valve train 7. The water inlet 4 of the reaction zone is connected to the liquid flow meter 8, the water inlet pump 9, and the regulating tank 1 in sequence through the pipeline, and the air inlet 5 of the reaction zone is connected to the air flow meter 10 and the blowing device 11 in...

Embodiment 2

[0082] The continuous flow intermittent aeration biofilm denitrification and phosphorus removal device used in this example is the same as that in Example 1. The difference from Embodiment 1 is that each reaction zone 201 of the reactor 2 described in this embodiment adopts the intermittent operation cycle variable water level operation mode. The operation method and process of the device are as follows:

[0083] The reactor 2 can realize continuous water inflow and continuous water outflow. The reaction zone 201 adopts a sequential batch operation mode, including water inflow, reaction, standing, water outflow and other processes. The intelligent control system 17 controls the operation of the device.

[0084] Sewage is introduced into the adjustment tank 1 to balance the water quality and quantity, and the effluent from the adjustment tank 1 is introduced into the reactor 2 . During the water intake process, the control valves of the water inlet 4 of the reaction zone from ...

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Abstract

The invention discloses a continuous flow intermittent aeration type biological film nitrogen and phosphorus removal device and method. The device comprises an adjusting tank (1) and a reactor (2), wherein the reactor (2) is integrally constructed by a plurality of reaction regions (201) and a water outlet region (202); the reaction regions (201) are filled with suspending fillings (14) and work in a sequencing batch manner so as to realize intermittent aeration; and the integrated reactor is capable of realizing processes of continuous inflow and continuous effluent. The device has the beneficial effects that the process chain is short, the carbon source in raw water is adequately utilized, and the nitrogen and phosphorus removal and mud-water separation processes are synchronously realized in the same physical space of a single-state bioreactor; and the device is extremely low in sludge output, low in treatment cost, convenient to manage, suitable for the small-scale decentralized treatment of town sewage and particularly suitable for the treatment of low-carbon-nitrogen-ratio town sewage in the south.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a continuous flow intermittent aeration biofilm denitrification and phosphorus removal device and method. Background technique [0002] With the rapid development of the economic level in small towns, water pollution is serious, and the current situation of sewage treatment in small towns lags behind the level of social and economic development. In small towns, the scale of sewage is small, the sources are scattered, and the water quality and quantity vary greatly; the process of large and medium-sized sewage treatment plants cannot adapt to the characteristics of water quality and quantity of sewage in small towns, and the process is complicated and the treatment cost is high; there is a lack of sewage treatment projects suitable for small towns Technology is a big reason. [0003] The concentration of COD in urban sewage in southern my country is generally low, while the concen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/02
CPCC02F3/02Y02W10/10
Inventor 郑蓓张小平李露陈才高李树苑张怀宇李跃增
Owner CENT & SOUTHERN CHINA MUNICIPAL ENG DESIGN & RES INST
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