Equipment for treating urban and industrial waste water, using activated sludge and in accordance with continuous or discontinuous operation.
Environmental Control ApparatusCivil engineering for sanitation purposes in rural and urban areas; services for urban and industrial sewage treatment facilities, including the installation, commissioning and repair of such installations; construction and repair of treatment plants.
Building Construction and RepairEngineers'services, technical and scientific consulting, for optimization or rehabilitation of urban and industrial sewage treatment facilities.
Computer and Scientific