Wastewater treatment

From design and construction to full operations of sewage treatment plants.

Thorough sewage treatment expertise

Cities and water agencies across the world rely on our expertise for treating their municipal wastewater. We design the most appropriate biological wastewater treatment systems producing clean water for safe discharge or reuse as irrigation after a tertiary treatment step. Our biological municipal wastewater treatment facilities in Morocco are amongst the largest in the African continent.

Sustainable wastewater treatment

Our municipal wastewater treatment solutions are designed to limit the Eco-footprint and limit the cost of treatment operations:

Biological wastewater treatment
Nutrient removal
Biogas production
Water reclamation
Sludge treatment
Odour treatment
Limited cost of ownership
Outsourced operations and maintenance

Biological wastewater treatment

We are helping small communities as well as +million population agglomerations to treat wastewater. The LUCAS^® aerobic wastewater treatment technology is our proprietary activated sludge-based technology and has been implemented in the majority of our sewage treatment plants. Depending on plot size, sewage flow and wastewater characteristics, the most appropriate LUCAS® aerobic wastewater treatment technology will be implemented.

Nutrient removal

Our LUCAS^® aerobic plants are designed to eliminate not only organic pollution (or BOD), but also nutrients like nitrogen and phosphorus resulting in a high-quality effluent.

Biogas production

Biogas can be recovered from primary and secondary settled sludge. The biogas can be used to power cogeneration units, providing heat for the digesters as well as electric power to operate the plant. The energy recovery from sludge reduces both the facility's carbon and energy footprint

Post-treatment for water reuse

An adapted post-treatment may be needed to complying to discharge regulation or for water reuse purposes. Preparing treated wastewater for irrigation will help improving sanitary conditions for the community and reduce water stress in water-deprived communities.

Sludge treatment

After biogas is recovered from sludge, the digested sludge is dewatered, sanitized and dried before being discharged. In dry countries, sludge can be dried using solar heat and our HYDROGONE® Greenhouse Drying technology. Volume reduction will limit transportation costs, contributing to the treatment facility's eco-footprint.

Odor treatment

To limit the odor nuisance of primary sewage treatment, polluted air containing nitrogen or Sulphur-based compounds is treated using biofilter technology. Purification of the polluted air improves the comfort of the plant operators as well as the adjacent population.

Limited cost of ownership

Our LUCAS^® municipal wastewater treatment plants are designed for maximum removal efficiency as well as minimal energy and chemical consumption. We provide full operations and maintenance services in the majority of our plants, offering peace of mind to local water agencies.

Operations and maintenance

In Morocco as well as in Macao, we continue to be awarded the operations & maintenance in dozens of municipal wastewater treatment plants. In some sewage plants, contracts have been lasting for more than 20 years.

We are highly valued for our thorough knowledge of the biological processes and for our expertise in managing treatment plants with very different wastewater characteristics or flows. In Morocco, we count more than 250 O&M specialists, making Waterleau Maroc our competence center for municipal wastewater treatment.