El control de la marginalidad en la Castilla del Siglo de Oro : el caso de Toledo

<p>Values are presented as the mean ±standard error of three replicates (n = 3). Vertical bars represent LSD at the 5% level.</p

Effects of temperature on total ammonia content in anaerobic co-digestion with a C/N ratio of 25.

a<p>±shows the standard error</p>b<p>LSD value at the 5% level based on all average values from three mixture sets at all operation temperatures</p>c<p>LSD value at the 5% level based on all final values from three mixture sets at all operation temperatures.</p

Effects of temperature on pH value in anaerobic co-digestion with a C/N ratio of 25.

a<p>±shows the standard error</p>b<p>LSD value at the 5% level based on all average values from three mixture sets at all operation temperatures</p>c<p>LSD value at the 5% level based on all final values from three mixture sets at all operation temperatures</p

Changes of methane potential with different C/N ratios in the mixture of dairy manure (DM), chicken manure (CM), and rice straw (RS) in anaerobic co-digestion at 35°C and 55°C.

<p>The dotted lines were fitting curves for both temperatures. Values are presented as the mean ±standard error of three replicates (n = 3). Vertical bars represent LSD at the 5% level.</p

Effects of temperature on methane potential in mixtures with a C/N ratio of 25.

<p>Values are presented as the mean ±standard error of three replicates (n = 3). Vertical bars represent LSD at the 5% level.</p

Chemical characteristics of raw materials used in this study.

a<p>±shows the standard error.</p

Effects of temperature on free ammonia content in in anaerobic co-digestion with a C/N ratio of 25.

a<p>±shows the standard error</p>b<p>LSD value at the 5% level based on all average values from three mixture sets at all operation temperatures</p>c<p>LSD value at the 5% level based on all final values from three mixture sets at all operation temperatures</p

Cumulative biogas production (a), Daily biogas production (b) and Methane content (c) of PM₁ and PM₂.

<p>Cumulative biogas production (a), Daily biogas production (b) and Methane content (c) of PM₁ and PM₂.</p

Chemical characterization of substrates used in the digestion experiments.

<p>^a Dry basis</p><p>Chemical characterization of substrates used in the digestion experiments.</p

Controlled and constant temperature anaerobic fermentation device.

<p>1. Temperature controlling box; 2. Temperature sensor; 3. Insulated cover; 4. Thermostatic water tank; 5. Strip heater; 6. None transparent digester; 7. Transparent digester; 8. Taking sampling; 9. Airway tube; 10. Taking biogas; 11. Aqueduct; 12. Air pipe; 13. Biogas collecting bottle; 14. Water collecting bottle.</p