![]() This study provides the implementation process of optimizing resource recovery performance, which may be of interest not only to integrated farm managers, but also decision-makers involved in agricultural waste management.īiochar application to soil has the potential to sequester carbon in the long term because of its high stability and large-scale production potential. ![]() A good farm configuration including solutions of composting, vermicomposting, pelleting, and anaerobic digestion would be appropriate for an agri-aquaculture system larger than 2 ha in size, yielding the highest profits of up to 1900 USD while emitting the least amount of greenhouse gas. The results of the optimization calculations revealed that decisions on resource recovery solutions based on system data would identify a set of alternative system configurations. A case study was used for this purpose, with data from a household-scale integrated agri-aquaculture system in Vietnam's Mekong Delta. ![]() ![]() The combination of these two tools provides a comprehensive approach to the optimization algorithms for solving economic problems and emission reduction potential assessment in technology options of biowaste treatment for the integrated farming system. The “continuous improvement” concept of the FarmDESIGN model is adopted in conjunction with a Life Cycle Assessment tool. This study aims to develop a decision support framework for optimizing resource recovery performance of biowaste treatment solutions in the integrated system. Various biodegradable wastes derived from an integrated farming system require appropriate waste treatment solutions to maximize their resource recovery efficiency regarding environmental and economic benefits. The model developed here is available for application to other cases. To improve the environmental footprint of future biochar systems, it is crucial that expected co-benefits from biochar use in agriculture are realised. Proper dimensioning of heat-constrained systems is key to ensure optimal biochar production, as biochar production potential of the case farm was reduced under expected climate change in Sweden. The farm’s heating system achieved net carbon dioxide removal through biochar carbon sequestration, but increased its impact in several other environmental categories, mainly due to increased biomass throughput. The model was applied to a case study farm in Sweden. Here, a model was developed to jointly: (i) simulate operation of on-farm energy systems equipped with pyrolysis units (ii) estimate biochar production potential and its variability under different energy demand situations and designs and (iii) calculate life cycle environmental impacts. Before policy support for on-farm pyrolysis projects is implemented, a comprehensive environmental evaluation of these systems is needed. These projects are driven by ambitions of achieving carbon dioxide removal, reducing environmental impacts, and improving farm finances and resilience. Pyrolysis plants convert biomass to biochar for agricultural applications and syngas for heating applications. Several small-scale pyrolysis plants have been installed on Swedish farms and uptake is increasing in the Nordic countries.
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