The article Effect of Varying Solids Concentration and Organic Loading on the

Chapter 3, Problem 12

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The article “Effect of Varying Solids Concentration and Organic Loading on the Performance of Temperature Phased Anaerobic Digestion Process” (S. Vandenburgh and T. Ellis, Water Environment Research, 2002:142–148) discusses experiments to determine the effect of the solids concentration on the performance of treatment methods for wastewater sludge. In the first experiment, the concentration of solids \((\text { in } g / L)\) was \(43.94 \pm 1.18\). In the second experiment, which was independent of the first, the concentration was \(48.66 \pm 1.76\). Estimate the difference in the concentration between the two experiments, and find the uncertainty in the estimate.

Equation Transcription:

Text Transcription:

(in g/L)

43.94 \pm 1.18

48.66 \pm 1.76

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