With continuous social progress, Wastewater Monitoring has become a vital link in ensuring water quality safety. Taking industrial wastewater as an example, this article explains what process wastewater refers to in monitoring work.
Industrial wastewater consists of wastewater and sewage generated during industrial production, containing production materials washed away by water and pollutants produced in manufacturing processes. As industry develops, water pollution has become increasingly severe, posing threats to human health. Therefore,Industrial Wastewater Monitoring measures the content of various substances in the water. For the protection of the environment, all kinds of wastewater must meet certain standards. All types of wastewater must meet specified standards before discharge or delivery to sewage treatment plants for secondary treatment. In fact, industrial wastewater monitored covers both production sewage and process wastewater. Wastewater is categorized by enterprise products and processing objects, including metallurgical, tannery, textile, oil refining wastewater and more.
Definition and Classification of Process Wastewater
1.Classified by chemical properties of main pollutants
Wastewater dominated by inorganic pollutants is defined as inorganic wastewater, while that mainly containing organic pollutants is organic wastewater. For instance, electroplating wastewater and mineral processing wastewater belong to inorganic wastewater; wastewater from food and petroleum processing is organic wastewater; printing and dyeing wastewater is mixed wastewater. Wastewater components vary greatly across different industries.
2.Classified by enterprise products and processing objects
It includes metallurgical wastewater, papermaking wastewater, coking gas wastewater, metal pickling wastewater, chemical fertilizer wastewater, tannery wastewater, textile printing and dyeing wastewater, dyestuff wastewater, power station wastewater, etc.
3.Classified by main pollutant components
It covers acidic wastewater, alkaline wastewater, cyanide-containing wastewater, chromium-containing wastewater, cadmium-containing wastewater, phenol-containing wastewater, oily wastewater, mercury-containing wastewater, aldehyde-containing wastewater, sulfur-containing wastewater, organophosphorus-containing wastewater and radioactive wastewater. The first two classification methods fail to reflect core pollutant compositions and the hazard level of wastewater.
