Sewage treatment assessment method and device guided by tracing analysis of particular pollutants

Abstract

The invention provides a sewage treatment assessment method and device guided by tracing analysis of particular pollutants. The method comprises the steps that assessment is performed according to operation efficiency of all process units of a sewage treatment plant; sampling and preprocessing are performed according to inflow water and outflow water of all the process units; sampling analysis detection is performed on water quality at the tail end of the process flow of the sewage treatment plant, so that the particular pollutants are clarified; a particular pollutant fingerprint graph library is established; tracing analysis and degradation pathway analysis are performed on the particular pollutants, and key process units and key factors influencing removal efficiency of the particular pollutants are judged; and optimization is performed according to the key process units and the key factors, so that optimization and assessment of the whole process flow are realized. Through the sewage treatment assessment method and device, key pollution factors restricting efficiency improvement in the sewage treatment process can be accurately positioned, degradation efficiency changes of various pollutants along the sewage treatment flow are determined, process operation optimization measures and source reduction and control measures are proposed pertinently, and therefore the timelinessand effectiveness of sewage treatment system assessment are improved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and relates to a sewage treatment evaluation method and device guided by characteristic pollutant traceability analysis. Background technique [0002] In order to meet the needs of upgrading sewage discharge standards and gradually improve the operating efficiency and pollutant removal capacity of sewage treatment plants, research on the treatment effect evaluation of sewage treatment plants in related industries has been carried out for many years, forming a theory and system based on unit process and whole process process efficiency evaluation. The technology system, combined with the water pinch technology and sewage separation and reuse technology, has been well applied in the efficiency improvement and process optimization of sewage treatment plants. [0003] The existing sewage treatment plant effect evaluation system mainly involves the evaluation of technical performance indicato...

AI Technical Summary

Problems solved by technology

However, some problems have also been exposed in practical applications: the evaluation indicators are mainly macro indicators, which are more suitable when the incoming water composition is relatively simple and the overall operating efficiency of the process is judged, but in the case of overlapping pollution loads from multiple water sources and a long process flow Under the current situation, it is impossible to distinguish the impact of different sources of sewage on the treatment process, and it is also difficult to make an accurate judgment on the phenomenon of low unit process operation efficiency and decreased pollutant removal rate, which has little guidance for enterprises to optimize management and improve efficiency

In addition, with several upgrades and renovations in recent years, the sewage treatment process has continued to lengthen, and some unit processes are in low-load operation

It is difficult to conduct an in-depth analysis of process operation efficiency from the perspective of pollutant composition by using an evaluation system based on macro index evaluation. It is urgent to establish a set of evaluation and analysis methods for sewage treatment systems guided by the analysis of organic pollutant degradation paths.

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