One might ask, why monitor sewage at all? Can’t we just discharge it? Of course not, direct discharge will pollute the original normal water source! So what is the purpose of testing sewage? What are the monitored objects? This chapter water quality online monitoring instrument manufacturers to understand together with you!

The Main Purpose of Sewage Online Monitoring!

In order to reflect the relevant pollutant emission concentrations and emissions after the project is completed and put into operation, and accurately assess whether various pollution factors in the discharged sewage meet the requirements of the standards and environmental impact assessment approval. In addition, the environmental protection department also needs to check whether the facility can operate normally and can meet the requirements of the preliminary design treatment capacity and pollutant removal efficiency. It is an important system for the implementation of prevention, and provides scientific data for the future water environment inspection management and pollution source control!

What are the Objects of Sewage Testing?

There are all kinds of industrial wastewater, domestic sewage treatment facilities and other supporting construction projects, but also connected with the external water environment.

1.For new projects, the scope of sewage monitoring includes production wastewater (including workshop surface flushing water), initial rainwater, clean sewage and domestic sewage outlet; Import and export of sewage treatment facilities;

2.In the reconstruction and expansion project, the monitoring scope of sewage not only includes the production wastewater generated by the project itself, clean sewage and domestic sewage outlet; Import and export of sewage treatment facilities; The specific flow of sewage shall be monitored at the exit to the built environmental protection facilities (including re-used water treatment facilities) or mixed with sewage from completed projects for discharge. At the same time, it is necessary to investigate and understand the emission and pollution control situation of the original project;

3.If the external drainage enters the park or the municipal sewage treatment plant for unified treatment, the relevant pollution factors discharged by the sewage treatment plant receiving the sewage should also be monitored;

4.For projects with special requirements for environmental impact assessment, the water body receiving the sewage is also monitored to investigate the trend of pollutant reduction after the sewage enters rivers, lakes, reservoirs and sea areas, and to carry out investigations. Rivers, lakes, reservoirs and seas that receive sewage. Post-water quality status;

5.Study possible effects on groundwater. If groundwater is included in the approval, groundwater monitoring should also be carried out.