Automatic online sampling sludge settlement ratio measuring device and method

Abstract

The invention discloses an automatic online sampling sludge settlement ratio measuring device and method. The automatic online sampling sludge settlement ratio measuring device comprises a measuring flow cell and a control system, wherein the measuring flow cell is provided with a water and sludge inlet, an overflow port and a sludge and sewage discharge port; an automatic sample injection valve is arranged at an outlet of the water and sludge inlet, two pipelines are arranged behind the automatic sample injection valve, one pipeline is connected with a sludge discharge system of a preorder reaction tank and provided with an automatic sampling valve, the other pipeline is connected with a flushing water system and provided with an automatic flushing valve, the overflow port is connected with a wastewater collection system, and the sludge and sewage discharge port is connected with the wastewater collection system through an automatic sludge and sewage discharge valve; and the control system is connected with the control ends of all automatic valves, controls the automatic on-off of the automatic valves, and has the functions of time sequence control and one-key starting. Accordingto the device, the problems that a sample is not representative due to randomness of manual sampling, errors are generated in the manual sample moving process, sludge flocs are disturbed in the sampling and sample moving processes and the like are solved, reading is convenient and rapid, and the real-time performance and accuracy of sludge settlement ratio measurement are improved.

Description

technical field [0001] The invention belongs to the technical field of water treatment and relates to an automatic on-line sampling sludge sedimentation ratio measuring device and method. Background technique [0002] As an important performance index, sludge sedimentation ratio (SV) is widely used in the operation control of activated sludge treatment system and sedimentation system. In the activated sludge treatment system, it is an important index to evaluate the coagulation and sedimentation performance of activated sludge, and the main parameter to guide the process operation, so that the operation management personnel can track and understand the concentration and mud quality of the activated sludge in the aeration tank in time situation, so as to master and control the operating parameters of the entire process. In the sedimentation system, it is an important indicator for judging the mud level and mud volume of the sedimentation tank. It enables the operation and ma...

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Problems solved by technology

[0006] In order to solve the problem of inaccurate measurement caused by manual sampling in the prior art, the present invention provides an automatic on-line sampling sludge sedimentation ratio measurement device and method, so that the measurement of this index can avoid the occurrence of manual sampling and manual sample transfer. Interference, so that this indicator can better provide a basis for production operation

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