Universal intelligent back wash controller of biological aerated filter

A technology of biological aerated filter and biological filter applied in the field of controller

Inactive Publication Date: 2014-03-05
UNIV OF JINAN
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0009]2. Using PLC to program mechanically according to the backwashing operating procedures, the mode is single and the intelligence is very low
[0011] VACOMASS system is a set of precise aeration control system for sewage treatment plant bio-pond developed by Germany Binder Company, the system includes built-in control algorithm, system software, local control device and laboratory simulation calibration; it has been widely used in Europe, but this system is only applied to the control of dissolved oxygen in the aeration tank

Method used

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  • Universal intelligent back wash controller of biological aerated filter
  • Universal intelligent back wash controller of biological aerated filter
  • Universal intelligent back wash controller of biological aerated filter

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Embodiment approach

[0061] According to the specific implementation plan, the instruments, sensors and other control circuits are connected according to the markings according to the process requirements. The intelligent backwash controller can be modified on the original control system, or it can be used as a new system. The sewage treatment plant has a first-level biological filter and a second-level biological filter, or has a multi-level biological filter. The control system consists of parallel and independent control systems. The connection method depends on the specific situation, and the control method corresponds to it; through the screen setting Good parameters and control mode, the control mode is based on the type of sensor or instrument connected. The electrical cabinet of the intelligent backwash controller is mainly used for conventional power transmission, intermediate relay interlocking, frequency converter control, etc.

[0062] The intelligent backwash controller adopts two mo...

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Abstract

The invention discloses a universal intelligent back wash controller of a biological aerated filter. The intelligent back wash controller is characterized by comprising a central processor as well as an analog input circuit, a switching value input circuit, a first-grade bio-filter back wash control output circuit, a second-grade bio-filter back wash control output circuit, a communication module, a memory, a keyboard, a display module and a power module which are respectively connected with the central processor. The intelligent back wash controller not only achieves the purposes of saving energy, reducing investment and lowering equipment loss, but also is convenient for a sewage treatment system to transform and upgrade, has various control modes, meets the requirements on parallel control and independent control of multiple filters, is applicable to occasions controlled by transducers, meets the requirement of large multistage bio-filter sewage treatment plants by being additionally provided with extension modules, can intelligently perform back wash on the bio-filter according to different signals and water temperature, and is low in cost, high in integration level and convenient to install and operate.

Description

technical field [0001] The invention relates to a controller, in particular to a universal intelligent backwash controller for biological aerated filters. Background technique [0002] Biological aerated filter is a new sewage treatment process developed on the basis of ordinary fast filter. The process integrates physical interception, biological adsorption and oxidation, and has developed rapidly in the advanced treatment of sewage. [0003] During the operation of the biological aerated filter, as the operation progresses, the microbial film growing on the filter material gradually thickens. In the early stage of thickening, it is beneficial to the improvement of the removal rate; lowered, and began to shed to some degree. During normal operation, the thickness of the microbial film should generally be squeezed to 300-400 μm. At this time, the biofilm has a strong metabolic capacity and the effluent quality is good. When the thickness of the film exceeds this range: ①T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/02
CPCY02W10/10
Inventor 李聪徐少昌张志伟陈亮张亚宁代后兆
Owner UNIV OF JINAN
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