Conclusions
The use of PLFA analysis provides a method for following general patterns in microbial community composition that occur during composting.
In this study, a full and pilot-scale facility were compared.
In addition, several different types of aterial were composted.
The patterns of change in community structure (based on PLFA profiles) in material processed at the full-scale facility were similar to those observed at the pilot-scale, although they differed significantly in the
time of their occurrence.
The microbial community within the pilot-scale system progressed more rapidly through the expected changes than did the full-scale community.
Regardless, the PLFA profile pattern that emerged (from the complete process) was consistent, predictable, and in agreement with the microbial communities expected.
Given this, the PLFA profile may be a useful tool for determining—in any given run—the stage of composting attained.
It might also provide a means of identifying stages where a process parameter or other problem is retarding progress.
Conclusions
The use of PLFA analysis provides a method for following general patterns in microbial community composition that occur during composting.
In this study, a full and pilot-scale facility were compared.
In addition, several different types of aterial were composted.
The patterns of change in community structure (based on PLFA profiles) in material processed at the full-scale facility were similar to those observed at the pilot-scale, although they differed significantly in the
time of their occurrence.
The microbial community within the pilot-scale system progressed more rapidly through the expected changes than did the full-scale community.
Regardless, the PLFA profile pattern that emerged (from the complete process) was consistent, predictable, and in agreement with the microbial communities expected.
Given this, the PLFA profile may be a useful tool for determining—in any given run—the stage of composting attained.
It might also provide a means of identifying stages where a process parameter or other problem is retarding progress.
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