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Device and method for strengthening denitrification and biological deodorization by A/O process

A biological deodorization and process technology, applied in chemical instruments and methods, biological water/sewage treatment, aerobic and anaerobic process treatment, etc., to achieve the effect of improving the environment

Active Publication Date: 2014-07-16
BEIJING UNIV OF TECH
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Problems solved by technology

[0007] The purpose of the present invention is to solve the problem of biological denitrification in sewage treatment plants, and at the same time have a certain effect on the treatment of odor

Method used

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  • Device and method for strengthening denitrification and biological deodorization by A/O process

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Embodiment 1

[0016] Device of the present invention sees specifically figure 1 , the specific operation steps have been described in detail in the summary of the invention, and will not be repeated here. There are three zones in the A / O reactor, one anoxic zone AI and two aerobic zones OI and OII. The raw water enters from the anoxic zone AI, and the reflux of nitrifying liquid enters AI from OII. Perspex reactors were used in this experiment, each pool had a volume of 12 L, and the reactors were operated in continuous flow. The odor components of sewage treatment plants are complex and changeable, among which the inorganic substances include H 2 S, NH 3 etc. Most of the raw materials of malodorous gas are organic substances, which are more harmful to human health. In this experiment, H2S was selected as the specific research object.

[0017] By comparing the performance of various embedding carriers, refer to the results of previous researchers. Polyvinyl alcohol (PVA) with easy fix...

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Abstract

The invention relates to a device and method for strengthening denitrification and biological deodorization by an A / O process, belonging to the technical field of sewage treatment. According to the A / O process in which a flow-separated ball is filled, a denitrification effect is strengthened by an SND (Simultaneous Nitrification and Denitrification) effect, and in addition, an embedding carrier with a deodorization effect is filled in the flow-separated ball and can play a certain role of strengthening biological deodorization. An A / O reactor consists of three areas, namely an anoxic area AI and two aerobic areas OI and OII. The three areas are identical in size. Raw water enters from the anoxic area AI, nitrifying liquid reflows to enter the anoxic area AI from the aerobic area OII, wherein the reflux ratio is 200 percent. During SND, a certain short-distance effect on the control of temperature, DO (dissolved oxygen) and the like can be achieved, and a certain removal effect on odor can be achieved.

Description

technical field [0001] The invention relates to a device and method for strengthening denitrification and biological deodorization by A / O process. The floating ball in the reactor is filled with porous sponge filler and embedded filler with deodorizing effect, and the denitrification effect is enhanced by synchronous nitrification and denitrification (SND), and at the same time, it has the function of deodorization, and belongs to the technical field of sewage treatment. Background technique [0002] With the continuous development of urban construction and the continuous expansion of the city, the location of the sewage treatment plant is getting closer to the residential area. The odor emitted by the sewage treatment plant during its operation has seriously affected the daily life of nearby residents. It has become a problem that sewage treatment plants must face to take necessary measures to reduce or even eliminate the harm to the surrounding environment caused by the od...

Claims

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Application Information

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IPC IPC(8): C02F3/30C02F3/34
Inventor 李军王盟卞伟邓海亮丁岩岳耀东张美雪侯爱月
Owner BEIJING UNIV OF TECH
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