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TECHNICAL PAPER ANAEROBIC DIGESTION STABILITY TEST BY SHEWHART CONTROL CHART

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Academic year: 2019

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FIGURE 1. (A) Air-conditioned environment, (B) Digester, (C) Effluent input, (D) Sampling points  and biogas output, (E) Effluent output
TABLE 1. Descriptive statistics of the values of organic material removal efficiency (TVS cons , %)  and biogas production (m 3 biogas  kg -1  TVS cons -1 )
FIGURE  2.  Graph  of  the  sample  autocorrelation  function  for  the  variables:  (A) organic  material  removal efficiency and (B) biogas production
FIGURE 3. Shewhart control chart for individual measurements and moving average range chart as  stability  test  for  anaerobic  digestion  through  organic  material  removal  efficiency  (TVS cons , %)
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