ABSTRACT

This chapter presents a case study on several innovative approaches for reducing organic loading rates in these discharges by focusing on all streams and sewers contributing to the problem, and developing strategies for mitigating problems at the point source. Owing to the mill’s location on the very small Dugdemona River, effluent treatment has always been an item of major concern. Sequencing batch reactors (SBRs) have traditionally been used in domestic wastewater treatment as a single unit, multiple-cycle secondary treatment system to reduce organic loads in small community POTW operations. To summarize pilot test data, an SBR was considered a viable treatment approach for the wastewater entering Pond A. The immobilized column technology shows promise for specific targeted streams at Hodge, but is also quite large when one considers handling of composite wastewaters. The spray header wetland system gave the best indications for BOD reduction for the volume of wastewater to be treated.