The Challenge

Discharges from combined and separate systems are highly charged with solid contamination and contribute to the pollution of receiving waters. The solids themselves act as transporters of a diversity of further pollutants such as heavy metals, PAH, petroleum-derived hydrocarbons or endocrine disrupters. In particular, fine particulates and organic solids with their high absorptive capacity are well-suited to bind pollutants.

Against this background, the retention of fine particulates has become an important goal in modern stormwater treatment. The cumulative parameter “fine filterable substances” (‹ 63 µ) will most certainly replace fine fractions of solids as the indicative parameter for future emission requirements. The elimination of fine particulates is a challenge for stormwater plants and only possible with the deployment of adequate filter systems or optimised sedimentation plants. For operational reasons and owing to its specific space requirements, the sedimentation process has become the norm within the framework of standard treatment. However, a paradigm shift can be observed in stormwater treatment towards locally adapted “stormwater management concepts”. This approach calls for an innovative, practicable and flexible treatment model as exemplified by the HydroM.E.S.I.^® Particle Separator.

The advantages

• Small compact construction
• Only slight height loss
• Can be retrofitted in canal network
• Low investment costs
• Low operational costs
• Low construction costs
• Modular, expandable system to meet local demands for stormwater treatment
• Variable design for ecological or economic limits