Evaluation of Natural Materials as Exogenous Carbon Sources for Biological Treatment of Low Carbon-to-Nitrogen Wastewater

<div>Total nitrogen released per gram of natural material. Red bullet: barley grains, blue bullet: peanut shells, and black bullet: woodchips.</div>

BioMed Research International

Figure 5: Evaluation of Natural Materials as Exogenous Carbon Sources for Biological Treatment of Low Carbon-to-Nitrogen Wastewater 