The present study is a part of a comprehensive Research Project financed by Veneto Agricoltura and the Veneto Region, with the main objective of evaluating the most promising processes for the treatment of digestate and farming effluents, in the optic of complying with the Nitrates Directive. Membrane treatment, i.e. ultra-filtration and reverse osmosis, represents a high-tech system derived from other sectors, including industrial applications and the production of drinking water (US EPA, 2005). This particular type of plants represents an extremely new solution for the treatment of digestate or manure, but the benefits that this technology could offer make it particularly promising (Chiumenti et al., 2009). These plants are complex and the application of this technology to this field required intense studies and field tests. In order to verify the efficiency of these plants monitoring campaigns were conducted on full scale units located in Europe (Germany, Switzerland and Belgium in particular) treating digestate from anaerobic digestion plants. The present work aims to present the results of the first monitoring period carried out in Germany. The tests were performed analyzing the input and output flows, with particular attention to the destiny of N and P. Other tests are being conducted for improving the valorization of the different fractions obtained by this type of process.
Digestate treatment by means of a fully scale membrane system: an innovative method for managing surplus nitrogen and for valorising farm effluents
CHIUMENTI, Roberto;CHIUMENTI, Alessandro;DA BORSO, Francesco
2010-01-01
Abstract
The present study is a part of a comprehensive Research Project financed by Veneto Agricoltura and the Veneto Region, with the main objective of evaluating the most promising processes for the treatment of digestate and farming effluents, in the optic of complying with the Nitrates Directive. Membrane treatment, i.e. ultra-filtration and reverse osmosis, represents a high-tech system derived from other sectors, including industrial applications and the production of drinking water (US EPA, 2005). This particular type of plants represents an extremely new solution for the treatment of digestate or manure, but the benefits that this technology could offer make it particularly promising (Chiumenti et al., 2009). These plants are complex and the application of this technology to this field required intense studies and field tests. In order to verify the efficiency of these plants monitoring campaigns were conducted on full scale units located in Europe (Germany, Switzerland and Belgium in particular) treating digestate from anaerobic digestion plants. The present work aims to present the results of the first monitoring period carried out in Germany. The tests were performed analyzing the input and output flows, with particular attention to the destiny of N and P. Other tests are being conducted for improving the valorization of the different fractions obtained by this type of process.File | Dimensione | Formato | |
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