Half of the water treated worldwide is urban wastewater.
The volume of wastewater continues to increase as a result of changing demographics, economic development and urban spread. Along with more stringent environmental safeguarding as a result of regulations and lifestyles, wastewater treatment is a major environmental challenge for local authorities.
Urban wastewater treatment is also a technological and economic challenge; the goal is to preserve biodiversity and protect water resources while ensuring the wellbeing of local populations.
To support local authorities with urban growth, we design treatment systems of varying complexity based on the quality of the effluent to be treated and the sensitivity of the medium.Wastewater purification typically requires several treatment stages:
- primary treatment
- secondary treatment
- tertiary or combined treatment
- odor removal
- sludge treatment