Table 3 P-values of factors and combined effects of factors for each parameter based on analysis of variance.

From: Effects of influent C/N ratios and treatment technologies on integral biogas upgrading and pollutants removal from synthetic domestic sewage

Factor

COD RE (%)

TN RE (%)

TP RE (%)

CO2 RE (%)

Influent C/N ratios

0.059

0.027*

0.039*

0.067

Treatment methods

0.034*

0.018*

0.044*

0.025*

Influent C/N ratios ×Treatment methods

0.028*

0.032*

0.017*

0.011*

  1. Influent C/N ratios: C variation treatments (C2.5N1-COD100, C5N1-COD200, and C10N1-COD400) and N variation treatments (C10N1-TN20, C5N1-TN40, and C2.5N1-TN80); treatment methods: microalgal monoculture, microalgal-fungal coculture and microalgal-activated sludge coculture (*p < 0.05).
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