Wastewater Treatment and Reuse: Correlation, Impact, and Critical Human Health Challenges

M A S Ansari ¹, Md. Jahidul Islam ², Md. Rafsan Jany ³, Fahmida Nargis ⁴, Anamika ⁵, Md. Nayem Hossain ⁶, Md. Mosharaf Hosen ⁶, Rakibul Hasan ², Md. Asif ², Arafat Chowdhury ⁷, Fatima Mazid Kona ⁸, Atiqur Rahman Sunny ^9*  

This review discusses the significance of wastewater treatment in sustainability, water security, environmental preservation, human health safeguarding and resource recovery.

Abstract

Background: Wastewater treatment and reuse are crucial for sustainable water management, addressing global challenges such as water scarcity, environmental pollution, and public health risks. As industrialization and population growth intensify water demand, advanced wastewater treatment technologies provide sustainable solutions for water reuse and resource recovery. This study explores the economic and environmental benefits of wastewater treatment, emphasizing its role in transforming waste into potable water, renewable energy production, and minimizing ecological degradation. Results: Modern wastewater treatment technologies, including membrane filtration, advanced oxidation processes (AOPs), electrochemical treatment, and microbial fuel cells (MFCs), significantly improve pollutant removal and water quality. Additionally, energy recovery through anaerobic digestion and hydrothermal carbonization enhances the circular economy by converting organic waste into bioenergy. The study identifies emerging innovations such as artificial intelligence (AI)-driven optimization, decentralized treatment systems, and sustainable infrastructure as key developments that enhance treatment efficiency and resilience. Despite these advancements, regulatory frameworks and public health guidelines remain crucial for ensuring safe wastewater reuse, particularly in mitigating the risks associated with heavy metals, pharmaceuticals, and antibiotic-resistant microorganisms. Conclusion: While wastewater treatment presents a viable strategy for environmental sustainability, its implementation is hindered by operational costs, infrastructural limitations, and regulatory challenges. Addressing these issues requires a comprehensive approach integrating technological advancements, policy interventions, and public engagement. Sustainable wastewater management can significantly improve global water security, environmental conservation, and economic stability by shifting wastewater from a waste byproduct to a valuable resource.Keywords: Wastewater treatment, Human health, Sustainable water management, Environmental, sustainability, Circular economy

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