A detailed pilot study of the biological trickling filter process
Annual Conference
❄
Napier City Council has been operating a pilot scale Biological Trickling Filter in an extended Losluj configuration for the past 15 months, in order to assess the suitability of this relatively novel configuration for the Napier community. The pilot was designed robustly so that it could be operated as a full-scale plant would be, and results could be extrapolated to the future performance of a full-scale filter.
Performance of the pilot plant at an organic loading rate of 0.4 kg cBOD5 /m3 .d has been good. Operational parameters of great importance for this process configuration are the flushing cycle and dose rate. At this organic loading rate, industry standard design models can be used to predict pilot performance.
This paper details the design and construction, and assesses the performance of the pilot plant to date, in the context of the development of the Napier community’s wastewater scheme.