Optimization study of the X-700 Biodenitrification Plant.

摘要

The Biodenitrification Facility at the Portsmouth Gaseous Diffusion Plant was designed to remove nitrate-nitrogen from waste solutions generated by the X-705 Decontamination and Solution Recovery Facility. The new NPDES permit for this facility, NPDES outfall 604, required that an operational optimization study be conducted after the permit was issued. This report documents the second half of the optimization study, the first part of which is documented in POEF-P-128, ''Operational Optimization of the X-700 Biodenitrification Plant --- Preliminary Report'', December 30, 1988. The purpose of this study was to determine the process capability of the New Biodenitrification Facility. The goal was to determine if the facility could be operated to process the design amount of waste solutions without exceeding the proposed effluent limits. Optimization activities focused on controlling the feed to the first column to maximize the removal of nitrate-nitrogen and on complying with existing effluent permit limits.