Imbedded Piping - Hydropower Facility

 

Imbedded piping located throughout the plant can easily become fouled by zebra mussels, causing blockage of flow and the prevention of system operation (Figure 2). In addition, the corrosion of metallic surfaces, poor joint sealing, erosion and abrasion of seals, increased maintenance, poor flow distribution, and increased loads on pumps are all problems associated with macrofouled imbedded piping. Fortunately, these are primarily internal systems, and thermal treatment or chlorination treatment can be used to control fouling.

 

Preventive Control Methods

Chemical Treatment

Thermal Treatment

Reactive Control Methods

Chemical Treatment

Mechanical Cleaning

Thermal Treatment

 

Hydropower Facility Components at Risk

Control Methods by Facility