2. Summary inventory of pollution. Classification tests

Establishing a detailed inventory of industrial wastewater pollution by industry type is difficult due to its complexity and the evolving nature of certain manufacturing processes. It could be said that there are as many types of industrial wastewater as there are manufactured products.

• Inventory by industry sector

  However, we thought it would be useful to present below, by major industrial sector, a classification highlighting the origin of the main pollutant discharges and their main characteristics (table 1 ).

• Inventory according to the predominant pollutant

  ...