Amended ministerial order of 02/02/98 , relative to the water usage and consumption as well as any type of emissions of permit holding classified installations for environmental protection - section 3 articles 34 and 35
Sectorial order of 03/04/2000 for paper mills
Sectorial order of 30 June 2006 for surface treatment relative to permit holding surface treatment installations under section 2565 of the nomenclature of classified installations
Sectorial order of 13 June 1994 for livestock farms stipulating the technical rules applicable to permit holding poultry and (or) wild fowl farms under environmental protection
Sectorial order of 3 May 2000 for wine preparation and packaging installations relative to the operational requirements applicable to permit holding classified installations for environmental protection under section 2251
Principle of a wastewater treatment plant
A wastewater treatment plant consists of one or several systems designed to extract the different pollutants contained in the wastewater it processes, so that the discharge does not deteriorate the natural milieu into which it is discharged.
This wastewater can be municipal or industrial (or agricultural) or the plant can treat both municipal and industrial wastewater. The connection of an industrial facility must be authorised by the authority or body managing the plant.
Wastewater treatment plants designed to only treat municipal wastewater are outside the scope of the nomenclature of classified installations.
2What treatments for what problems?2
In municipal or industrial wastewater, the traditional pollutants to eliminate are suspended solids, dissolved organic materials, nitrogen and phosphorus, metals. However, knowledge of the chemical composition of the wastewater is necessary to set up a water treatment matching the applicable legislation.
Certain industrial activity branches generate very specific types of pollution, for example:
Various technologies are used to more or less specifically eliminate the concentrations of substances contained in the wastewater:
The combination of processes is calculated according to the nature of the wastewater collected in the network and the type of pollution to be treated.
2Emission limit values2
Regardless of the destination of the wastewater generated by a classified installation (natural environment or sewer system), this wastewater must comply with the regulatory framework provided by the legislation on classified installations. The operational requirements of a prefectural permit order with regard to the quality of wastewater (emission limit values in concentration by substance, flow rates etc.) are based on:
Technical data sheet: “organisation and operation of a wastewater treatment plant” (ADEME)
Municipal wastewater sludge and use of this sludge in agriculture (ADEME)
Water information Centre