A talk on Membrane Technologies for Water and Wastewater Treatment

#IEEE#Wastewater#Membranetechnologies

Industrial and population growth, accompanied by environmental pollution, has led to an unprecedented freshwater crisis, which has attracted the serious attention of membrane technocrats. The conventional waste (water) treatment methods, such as reverse osmosis and multi-effect distillation are rendered limited due to certain limitations such as improper reject disposal and high energy consumption. Membrane distillation (MD), a synergistic process with advantages of the membrane and thermal separation process, has many applications in desalination and industrial wastewater treatment. In this work, the potential of various flat-sheet mixed matrix membranes for saline water and wastewater (tannery, textile and pharmaceutical industries) treatment was attempted. The work delves into the fabrication of membranes, investigating the incorporation of inorganic fillers and the fine-tuning of hydrophobicity to enhance MD performance. This work also presents a novel concept of MD membranes with self-cleaning properties, offering the potential for significant cost and energy savings. A major breakthrough achieved in this work is the successful integration of MD with crystallization for salt recovery from subsoil brine and tannery industry wastewater, a vital step toward achieving zero liquid discharge. This work also utilizes computational fluid dynamics modelling to gain valuable insights into the MD process, providing a robust foundation for process optimization before resource-intensive experimental trials. The study demonstrates the scalability and effectiveness of synthesized membranes in this integrated approach. Overall, this work comprehensively explores and offers innovative solutions to address high saline and wastewater treatment challenges, positioning membrane technology as a vital component of sustainable water treatment processes.

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• EEE Department, IIT Guwahati
• Guwahati, Assam
• India 781039

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• Co-sponsored by CICPS & EEE Department, IIT Guwahati