Novel siphon type water decanter, SBR and control method of novel siphon type water decanter

A siphon type decanter and reactor technology, which is applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc. It can not work normally, the flow of the water inlet is uneven, etc., to achieve the effect of convenient transportation and on-site installation, light weight and compact structure

Pending Publication Date: 2021-05-28
成都利尔环保技术开发有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0007] The decanter used in the SBR biochemical reactor can be divided into five types: the first type is the electric mechanical rocker decanter, the second type is the sleeve decanter, the third type is the siphon decanter, The fourth type is a rotary decanter, and the fifth type is a buoy type decanter. Among them, the first, fourth, and fifth types are powered decanters, and the powered decanters require mechanical transmission due to their rotating parts. Therefore, it is prone to failure during use, and the cost is high; the second type of sleeve decanter is prone to the phenomenon that the pipe sleeve is stuck and cannot work normally; the third type of siphon decanter, this form of decanter is Developed by the Australian AAT company in the mid-1980s and began to be applied to the SBR process, the decanter is mainly divided into three parts: multiple short drainage pipes, horizontal weir arms, U-shaped pipe parts and main drainage pipes, which are easy to maintain, The advantages of low operating costs and saving infrastructure costs, but high processing accuracy is required, and the method of multi-pipe and multi-point water intake is adopted. Due to the different resistance of the pipes, the flow of each water inlet is uneven, and the water near the main pipe and the outlet pipe is large, and vice versa. The amount of water is small; in addition, the water inlets are distributed in multiple points on the horizontal plane, the decanter takes up a lot of space, the installation is difficult, and it is not conducive to the maintenance of the aeration system at the bottom of the reactor. It is rarely used in China, and it is necessary to improve it

Method used

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  • Novel siphon type water decanter, SBR and control method of novel siphon type water decanter
  • Novel siphon type water decanter, SBR and control method of novel siphon type water decanter
  • Novel siphon type water decanter, SBR and control method of novel siphon type water decanter

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Effect test

Embodiment 1

[0040] Such as Figure 1~4 As shown, this embodiment provides a novel siphon decanter, including an annular drainage channel 9 , a conical confluence chamber 5 , an air valve 3 , a U-shaped pipe 16 , and a drain pipe 10 .

[0041] Specifically, the annular drainage channel 9 is vertically arranged, and the annular drainage channel 9 includes an inner cylinder 91 and an outer cylinder 92. The inner cylinder 91 and the outer cylinder 92 form an annular drainage space, which has equal resistance drainage and makes the annular drainage channel 9 Evenly enter water along the circumference to prevent the effect of stirring and sedimentation.

[0042] More specifically, a plurality of connecting strips 93 are arranged between the inner cylinder 91 and the outer cylinder 92, and the connecting strips 93 are used to control the concentricity of the inner cylinder 91 and the outer cylinder 92, and can also play a supporting role to improve the inner cylinder 91. And the stability of ou...

Embodiment 2

[0050] Such as Figure 5 As shown, a kind of novel SBR reactor provided for the present embodiment, comprises central controller, SBR reaction tank, and the novel siphon type decanter described in embodiment 1 that is positioned at SBR reaction tank, liquid level sensor 15, exposure The gas device 17 and the liquid level sensor 15 are used to collect the information of the water level in the SBR reaction tank, and transmit the information to the central controller, and the central controller is used to receive the information of the liquid level sensor 15, and compare the information of the above water level with the preset Value comparison, when the water level reaches the corresponding preset value, the central controller controls the opening and closing of the air valve 3.

[0051] Preferably, the liquid level sensor 15 is set as a drop-in liquid level gauge.

Embodiment 3

[0053] Such as Figure 6 As shown, the control method of a new type of SBR reactor provided by this embodiment adopts the new type of SBR reactor described in Example 2. When installing, first use the top cone 22 to resist the decanter mounting plate 1, and adjust the Three bolts 21 adjust the water inlet of the annular gap drainage channel 9 to the level, and the control methods include:

[0054] S1. In the idle stage, before the sewage starts to flow in, it is the waiting state after the drainage in the previous cycle is completed, that is, the lowest water level line 14. At this time, the air valve 3 is closed, and the first time it is used, it passes through the overflow pipe 4 to The U-shaped pipe 16 is filled with water until excess water flows out from the drain pipe 10;

[0055] S2. In the water inlet stage, the air valve 3 is closed, and the sewage to be treated is injected into the SBR reactor through the water inlet pipe 11. The liquid level of the sewage is from t...

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Abstract

The invention discloses a novel siphon type water decanter, an SBR and a control method thereof. The novel siphon type water decanter comprises an annular space drainage channel, a conical surface confluence chamber, an air valve, a U-shaped pipe and a drainage pipe. The annular drainage channel comprises an inner cylinder and an outer cylinder, the inner cylinder and the outer cylinder form an annular drainage space, and the top of the annular drainage channel is connected with a confluence weir; the conical confluence chamber comprises a circular confluence weir and a conical structure, the periphery of the circular confluence weir is connected with the inner cylinder, and the bottom of the conical structure is connected with the outer cylinder; the air valve is connected with the top of the conical structure; one end of the U-shaped pipe is connected with the central bottom of the circular confluence weir; the water decanter is small in size, light in weight, convenient to install on site and uniform and stable in water decanting process, the water decanter is always kept in a horizontal state, and in the whole process, activated sludge and sewage which is not subjected to biochemical treatment cannot flow out of the circular confluence weir, so the quality of discharged water cannot be influenced.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a novel siphon decanter, an SBR reactor and a control method thereof. Background technique [0002] The SBR method, the full name of the sequencing batch activated sludge method, is the initial mode of sewage biological treatment method. Due to the complexity of switching between inlet and outlet water, variable water level outlet and equipment, its application and development are limited. With the development and application of computer and automatic control technology and related equipment, SBR method is more and more widely used in domestic sewage treatment and various organic industrial wastewater treatment. The SBR method is different from the traditional activated sludge method. It is characterized by spatial push flow in the flow state and organic matter degradation. The SBR method is a completely mixed type in the flow state. In terms of organic matter degradatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12
CPCC02F3/1263C02F2203/006Y02W10/10
Inventor 梁良
Owner 成都利尔环保技术开发有限公司
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