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Layered oxygen-supply aeration bacteria filter

An aerated biological filter and oxygen supply technology, which is applied in the field of water treatment technology, can solve the problems of uneven distribution of oxygen supply, blockage of filler pores, and equipment advantages that reduce treatment efficiency.

Inactive Publication Date: 2012-06-13
JIANGSU UNIV
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Problems solved by technology

However, in long-term practice, it is also found that the oxygen supply in the filler layer is unevenly distributed due to the lack of oxygen at the bottom, and the treatment effect is not good. At the same time, there will be a problem of filler pore blockage, which greatly reduces the treatment efficiency and the advantages of the equipment.

Method used

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  • Layered oxygen-supply aeration bacteria filter
  • Layered oxygen-supply aeration bacteria filter

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Embodiment Construction

[0008] The layered oxygen supply aerated biological filter includes four parts: water inlet and outlet device, packing layer, aeration device, and backwashing device. Separate from the filler, the upper part of the water inlet and outlet device is a filler layer, the aeration device is evenly divided and distributed in the filler layer, the backwash device and the water inlet and outlet device are located on the same layer, and the backwash water inlet is opposite to the inlet and outlet water inlet. Divided aeration not only optimizes the inflow and outflow, but also greatly improves the backwashing. The most important thing is to improve the aeration and oxygen supply. The layered oxygen supply can make the microorganisms evenly distributed and improve the treatment efficiency.

[0009] 1. Water inlet and outlet device: The sewage enters the reactor from the water inlet pipe 1 in the water inlet and outlet device, and passes through the packing 4 of the packing layer sepa...

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Abstract

The invention relates to a layered oxygen-supply aeration bacteria filter, which is capable of balancing oxygen-supply quantity of an aeration tank and comprises a filling layer, an aeration device, a water inlet and outlet device and a back flush device. The layered oxygen-supply aeration bacteria filter integrates the characteristics including layered aeration, high filtering velocity, suspended matter interception, regular back flush and the like, and is capable of performing secondary treatment and advanced treatment to waste water, performing the layered aeration, balancing the oxygen-supply quantity, enabling the oxygen supply of the filling layer in the aeration bacteria filter to be even and overcoming the defect that a conventional aeration bacteria filter is provided with an aeration pipeline only on a bottom layer so as to enable the oxygen supply for microorganism in an upper filling layer to be insufficient, and further pollution cleaning efficiency is influenced.

Description

technical field [0001] The invention belongs to a novel water treatment process. Specifically, by arranging the aeration pipes in layers, the oxygen supply to the filler layer in the biological aerated filter is uniform, and it overcomes the lack of oxygen supply to the microorganisms in the upper layer of the filler in the conventional biological aerated filter. It can effectively reduce the clogging phenomenon of fillers, which will affect the decontamination efficiency; in addition, it can also make the microbial nutrient supply even. Background technique [0002] Biological Aerated Filter (BAF) is a new biofilm sewage treatment process developed in Europe and America in the late 1980s. This process has the functions of removing SS, COD, BOD, nitrification, nitrogen removal, phosphorus removal, and AOX (harmful substances). Compared with other secondary biochemical treatment technologies, it has high volume load, strong impact load resistance, good treatment effect, goo...

Claims

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Application Information

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IPC IPC(8): C02F3/02
CPCY02W10/10
Inventor 解清杰周清时段明飞
Owner JIANGSU UNIV
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