Thermo-economic and environmental optimization of a solar-driven zero-liquid discharge system for shale gas wastewater desalination

Autor: José A. Caballero, Juan A. Labarta, Viviani C. Onishi, Raquel Salcedo-Díaz, Rubén Ruiz-Femenia, Mohammad Hasan Khoshgoftar Manesh
Přispěvatelé: Universidad de Alicante. Departamento de Ingeniería Química, Universidad de Alicante. Instituto Universitario de Ingeniería de los Procesos Químicos, Computer Optimization of Chemical Engineering Processes and Technologies (CONCEPT)
Rok vydání: 2021
Předmět:
Optimization
Renewable energy
Environmental analysis
020209 energy
General Chemical Engineering
02 engineering and technology
7. Clean energy
Zero liquid discharge
Desalination
12. Responsible consumption
020401 chemical engineering
0202 electrical engineering
electronic engineering
information engineering
Zero-liquid discharge
General Materials Science
0204 chemical engineering
Multiple-effect evaporation
Vapor-compression evaporation
Process engineering
Life-cycle assessment
Evaporator
Water Science and Technology
Degree Rankine
business.industry
Mechanical Engineering
Optimization
Shale gas wastewater
High-salinity wastewater
Zero-liquid discharge
Multiple-effect evaporation
Mechanical vapor recompression
Renewable energy
General Chemistry
6. Clean water
Ingeniería Química
Shale gas wastewater
13. Climate action
Environmental science
High-salinity wastewater
business
Mechanical vapor recompression
Zdroj: RUA. Repositorio Institucional de la Universidad de Alicante
Universidad de Alicante (UA)
ISSN: 0011-9164
Popis: Wastewater management is one of the main hurdles encountered by the shale gas industry for boosting overall process cost-effectiveness while reducing environmental impacts. In this light, this paper introduces a new multi-objective model for the thermo-economic and environmental optimization of solar-based zero-liquid discharge (ZLD) desalination systems. The solar-driven ZLD system is especially developed for desalinating high-salinity wastewaters from shale gas process. A decentralized system is proposed, encompassing a solar thermal system, a Rankine power cycle, and a multiple-effect evaporator combined with mechanical vapor recompression. The environment-friendly ZLD operation is ensured by specifying the salt concentration of brine discharges close to saturation conditions. The mathematical modelling approach is centered on a multi-objective non-linear programming (MoNLP) formulation, which is aimed at simultaneously minimizing thermo-economic and environmental objective functions. The latter objective function is quantified by the ReCiPe methodology based on life cycle assessment. The MoNLP model is implemented in GAMS software, and solved through the epsilon-constraint method. A set of trade-off Pareto-optimal solutions is presented to support decision-makers towards implementing more sustainable and cost-efficient solar-driven ZLD desalination systems. The comprehensive energy, economic and environmental analysis reveals that the innovative system significantly decreases costs and environmental impacts in shale gas wastewater operations. This project has received funding from the European Union's Horizon 2020 Research and Innovation Programme under grant agreement No. 640979.
Databáze: OpenAIRE
Externí odkaz: