This chapter aligns with UN SDG Goals 6, 13, and 14 by focusing on climate change and marine species' resilience in the ocean environment.

With evident relevance to SDG 6, the research explores a water pollution control technology evaluation model based on the Pythagorean language neutrosophic set (PLNS) in the context of the pulp and paper industry. The authors' model aims to assist in the choice of appropriate water pollution control technology for those working within the paper industry. It is tested in an example based in China.

Synergetic management of waste activated sludge, heavy metals (HMs) and CO2 for their valorization and cyclic utilization is rarely reported.

Knowledge of ecosystem-size influences on river populations and communities is integral to the balancing of human and environmental needs for water.

Wastewater treatment processes are generally expensive and energy-intensive, emitting greenhouse gases like methane, carbon dioxide, and nitrous oxide. One of the critical challenges in wastewater treatment is the removal of heavy metals, including cadmium, lead, arsenic, chromium, and zinc. THis artciles explores the use of biochar for the removal of Cd2+ and Zn2+.

Antibiotics are persistent in water and the environment. This study investigates the performance of activated carbon from olive pomace (ACOP) in the removal of hydrophilic organic pharmaceutical micropollutants such as the antibiotic sulfamethoxazole (SMX) from water.