Full-automatic constant water level sequential batch water-draining system and water-draining method thereof

A water outlet system, constant water level technology, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem that the water level electrode is not well maintained and the electrode is prone to send out error signals , effluent quality decline and other problems, to achieve the effect of good effluent quality, not easy to run mud, and stable effluent flow

Pending Publication Date: 2018-12-07
SHANGHAI HONESS ENVIRONMENTAL TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1) The water out of the air weir is easy to entrain and take away part of the air, so that negative pressure is formed in the air weir, resulting in a siphon phenomenon, the water flow rate will increase sharply, and the water body will be disturbed, the water will easily run out of mud, and the water quality will decline
[0004] 2) During the operation of the air weir, it needs to switch between multiple valves continuously, and the water level electrode is often not well maintained due to long-term operation, and it is easy to be damaged, causing the electrode to easily send out wrong signals, making it impossible to Quickly and accurately complete the switching operation between different reaction period functions of the sequencing batch reaction pool

Method used

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  • Full-automatic constant water level sequential batch water-draining system and water-draining method thereof
  • Full-automatic constant water level sequential batch water-draining system and water-draining method thereof
  • Full-automatic constant water level sequential batch water-draining system and water-draining method thereof

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Embodiment 1

[0030] Depend on figure 1 As shown, the fully automatic constant water level sequence batch operation water outlet system of the present invention includes a water inlet tank 1, an inlet pump 2, a sequence batch reaction tank 3, a first air weir 4, a second air weir 5, a first air compressor 6, The second air compressor 7, the first aerator 8, the second aerator 9, and the water outlet tank 10. A water inlet pump 1 is provided on the pipeline connecting the water inlet tank 1 and the sequencing batch reaction tank 3 . Both the water outlets of the first air weir 4 and the second air weir 5 are connected to the water outlet pool 10 , and the pipelines between the water outlets of the second air weir 5 and the water outlet pool 10 are provided with an air supply port 20 . Both the first aerator 8 and the second aerator 9 are connected with the second air compressor 7 .

[0031] Partition plate 11 is arranged in described sequence batch reaction tank 3, sequence batch reaction ...

Embodiment 2

[0048] Embodiment 2 and Embodiment 1 only have certain differences in the drainage control method, except that, others are all the same, and the differences are as follows:

[0049] (1) Sewage is continuously pumped into the sequence batch reaction tank by the water inlet pump 1, and the first air inlet valve 12 is opened to start aerating in the first air weir 4; Exhaust, and the second sequence batch reaction tank 102 starts to drain water;

[0050] (2) After the first air weir 4 is inflated for 0.5min, the air pressure in the first air weir 4 reaches the set maximum value of 5kPa. At this time, the first air inlet valve 12 is closed, and the second air compressor 7 and the second air compressor are opened. Three air inlet valves 18 are used to aerate in the first sequence batch reaction tank 101; at this time, the second sequence batch reaction tank 102 continues to drain water, and when the second air weir 5 is exhausted until the pressure is reduced to the set minimum val...

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Abstract

The invention discloses a full-automatic constant water level sequential batch water-draining system. Sewage is continuously pumped into sequential batch reaction tanks; in water draining, inflation of air weir, aeration and precipitation are successively performed in a first sequential batch reaction tank, inflation of air weir, aeration reaction, precipitation and water draining are successivelyperformed in a second sequential batch reaction tank; the two sets of sequential batch reaction tanks are successively switched for alternatively running; an air control type constant water level sequential batch system comprises a water feeding tank, a water feeding pump, sequential batch reaction tanks, a first air weir, a second air weir, a first air compressor, a second air compressor, a first aerator, a second aerator and a water draining tank; the first air weir and the second air weir are both connected with the first air compressor; the first aerator and the second aerator are both connected with the second air compressor. The full-automatic constant water level sequential batch water-draining system has high degree of automation; constant water level is kept in the whole sequential batch reaction tank and water is continuously drained; flow of drained water is stable; air is difficult to be carried by the drained water; quality of the drained water is high.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a fully automatic constant water level sequence batch operation water discharge system and a drainage method thereof. Background technique [0002] With the widespread application of sequencing batch technology (sequencing batch activated sludge process), the traditional lifting decanter can no longer meet the requirements of intermittent water discharge according to the operation cycle. The air outlet weir (referred to as "air weir") is to control the water outlet cycle through the water level electrode to control the switch of the air inlet and outlet valves to meet the needs of process operation. Exhaust problem. Therefore, various continuous flow constant water level air weirs appear in large numbers, but in the actual operation process, there are some problems with the air weirs: [0003] 1) The water out of the air weir is easy to entrain and take away part of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/02C02F3/12
CPCC02F3/02C02F3/121C02F3/1215C02F3/1263Y02W10/10
Inventor 王文标张丕胡君杰朱成辉
Owner SHANGHAI HONESS ENVIRONMENTAL TECH CORP
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