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18th European Meeting on Environmental Chemistry (EMEC). Poster (#23) http://emec18.eventos.chemistry.pt/ In this work, a new stochastic-fuzzy-based modelling approach is introduced for the robust optimization of shale gas wastewater management under multiple sources of uncertainty. Different management alternatives are considered to deal with the wastewater produced from fracking sites (well pads), including treatment plants—composed by pre-treatment and zero-liquid discharge (ZLD) desalination units—to allow water recycling or internal reuse in shale gas operations, or final disposal in Class II saline water injection wells (i.e., conventional deep-well injection). This project has received funding from the European Union’s Horizon 2020 Research and Innovation Programme under grant agreement No. 640979.

18th European Meeting on Environmental Chemistry (EMEC). Poster (#22) http://emec18.eventos.chemistry.pt/ Wastewater management is nowadays one of the major concerns faced by the shale gas industry to improve its cost-effectiveness, while preserving the human health and environment. Horizontal drilling and hydraulic fracturing operations usually demand excessive freshwater consumption and generate large wastewater volumes. The highly polluting nature of shale gas wastewater impels the application of energy-intensive pretreatment and desalination, to allow water reuse in hydraulic fracking processes, water recycling or safe discharge. This work aims to offer an overview of main challenges and perspectives of alternatives for water reuse and recycling in shale gas wastewater management. This project has received funding from the European Union’s Horizon 2020 Research and Innovation Programme under grant agreement No. 640979.