OUR-based sewage toxicity real-time early warning system and application thereof

Abstract

The invention discloses an OUR-based sewage toxicity real-time early warning system. The OUR-based sewage toxicity real-time early warning system comprises a sewage filter, a sewage pump, an aerationpool, an aeration apparatus, two closed reaction pools, filamentous bacteria biological gel, zoogloea biological gel, two DO electrode probes, a PLC control early warning system and a water outlet, awater inlet of the sewage filter is connected with a water fetching opening on a pretreatment system and a biochemical pool connection pipeline, two ends of the sewage pump are respectively connectedwith water inlets of the sewage filter and the aeration pool, a water outlet of the aeration pool is connected with the closed reaction pool, the filamentous bacteria biological gel and the zoogloea biological gel are respectively arranged in different closed reaction pools, one DO electrode probe is arranged in each closed reaction pool, and both DO electrode probes are respectively connected with the PLC control early warning system. The OUR-based sewage toxicity real-time early warning system has the characteristics of real-time and multilevel early warning, intuitive effect, rapidness in early warning, stability and convenience in operation, and high efficiency and economy.

Description

technical field [0001] The invention relates to an OUR-based real-time early warning system for sewage toxicity and a method for using the same, and belongs to the technical field of real-time early warning of activated sludge imbalance in sewage treatment. Background technique [0002] With the development of my country's economy and society, especially industry, a large amount of untreated industrial wastewater mixed with domestic sewage is discharged into urban sewage treatment plants, causing fluctuations in the quality of influent water, which has an impact on the stable operation of the treatment process. In particular, the existing urban sewage treatment plants in my country widely adopt the activated sludge process. The activated sludge system will cause imbalance and failure due to the impact of toxic and harmful substances contained in the sewage, and problems such as sludge bulking and sludge disintegration will occur. Real-time early warning of water quality fluct...

AI Technical Summary

Problems solved by technology

[0005] (1) The existing OUR biotoxicity monitoring system does not have comprehensive warnings, and can only warn of the reduction of the respiration rate of the activated sludge system caused by sewage, but the impact of water quality fluctuations on sludge is not limited to all microbial communities in sludge Inhibition of this situation may also lead to an imbalance of activated sludge microorganisms

For example, changes in the water quality of sewage may promote the excessive reproduction of filamentous bacteria, and the respiration rate of the entire activated sludge system may not change or even increase, but the activated sludge system has expanded, resulting in poor water quality

[0006] (2) The existing OUR biological toxicity monitoring system draws water from the biochemical pool, and the sewage has already entered the biochemical pool, resulting in untimely early warning

Extracting sludge from the biochemical tank will also have a certain impact on the morphology and microbial activities of the activated sludge system

Images