Recycled fiber pulp from a vortex cleaning plant effects the recovery and return of fillers in the recycled fiber pulp discharged from the vortex cleaning plant, in an efficient and economical manner. At least one semiconductor wafer is processed. The proxy server evaluates operator-alterable rules to determine, based on capabilities of the requesting client, specifically how to reformat the requested web content so that it will be suitable for passing on to the requesting client.