Monitoring during fish food addition indicated wastewater characteristics
comparable to those during salmon processing, and the performance of the
treatment system was maintained when receiving no fresh fish processing
wastewater.
Wastewater characteristics for large and small salmon are summarized and
compared in Table 7.
processed was wasted. The wastage was hauled away to a sanitary landfill for
disposal. Comparison of the wastewater characteristics showed that flow and
the weight of pollutants generated per ton of fish processed for small salmon
were greater than for large salmon. Conversely, pollutant concentrations
generated during small fish processing were generally less than during large
fish processing, which produced a stronger waste.
standard deviations, the incoming wastewater in both cases was highly
variable.