Limestone dissolution kinetics in upflow reactor systems

Waters derived from the Table Mountain sandstones are soft and acidic. Consequently they tend to be highly aggressive to cement materials and corrosive to metals. Full stabilization is normally effected using lime and carbon dioxide, this however is expensive and inappropriate in many rural areas. Partial stabilization effected by passing the water through limestone (calcium carbonate) granules appears to be a practical means of reducing aggression and corrosion problems associated with these waters. In this process calcium carbonate into the water increases the pH and the Alkalinity and calcium content. Feasibility of the process in part depends on the rate at which limestone dissolves into the water. This investigation addresses the problem of modelling the kinetics of the dissolution process and calibrating the model by experimentation.

Grantor dc:publisher.institution

Department of Civil Engineering

Year dc:date.issued

1995

Author dc:creator

• Kornmüller, Ulrich Christopher Robin

Advisor dc:contributor.advisor

• Loewenthal, Richard Eric

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/11427/17440

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/17440