Varenyam Achal – författare

This book unveils the advancements in water pollution analysis and its biological treatment technology and provides valuable research and experience for engineers and scholars. On March 22, 2024, in the United Nations World Water Development Report, the theme of this year''s conference, "Water for Promoting Prosperity and Peace," aligns with Global Water Partnerships'' long-standing mission and vision of integrated water resources management. Currently, around half of the world''s population faces severe water scarcity for at least part of the year, and a quarter of the global population experiences "extremely high" water stress. Meanwhile, global freshwater usage is growing at a rate slightly below 1% annually. Hence, the protection of water resources and pollution control, particularly the renewal and management of freshwater resources, deserve significant attention. Emerging pollutants of concern include per- and polyfluoroalkyl substances (PFAS), pharmaceuticals, hormones, industrial chemicals, detergents, cyanotoxins, and nanomaterials. High concentrations of antimicrobial agents have been found worldwide, originating from inadequately treated household wastewater, livestock, and aquaculture. Biological treatment technology for water pollution uses microorganisms to break down pollutants into harmless or less toxic substances, becoming an important means of addressing water pollution. Its advantages lie in low cost, adaptability, and the ability to effectively treat various organic pollutants, including hydrocarbons, pharmaceuticals, and pesticides. However, the effectiveness of this technology depends on the selection of appropriate microbial strains and the optimization of treatment conditions (such as temperature, pH, and nutrients). In the aspect of water pollution analysis, accurate detection of the types and concentrations of pollutants is a prerequisite for management and remediation. Modern instruments, such as gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS), can identify and quantify trace pollutants in complex water bodies. Additionally, new-generation sensing technologies and biological detection tools, like DNA microarrays and gene sequencing technologies, enable rapid detection of specific pollutants and reveal microbial community responses to pollutants. These technologies can effectively target and treat heavy industrial and chemical pollution, thereby protecting water environmental safety. This book aims to facilitate the exchange of scientific information among scholars from leading universities, research centers, and high-tech enterprises around the world. This book is highly beneficial to scholars, engineers, and researchers in the fields of environmental engineering and water pollution.

This book focuses on ecological wisdom inspired restoration engineering through theories, hypotheses, policies, practical understanding, and case studies. Understanding nature’s processes is a prerequisite for the healthy and sustainable functioning of a habitable Earth. As such, the book provides a guide for readers seeking to understand and build sustainable, urban socio-ecological systems using restoration technologies based on wisdom. Motivated by recent rapid advances in restoration engineering, such as the role of green building materials in urban infrastructures, and developing sustainable landscapes to benefit the environment, economy and communities, it is an essential reference on the most promising innovative technologies. It discusses engineering methods and practices in the restoration of soil, water, heritage sites, and other ecosystems, as well as the development and applications of green building materials. It presents a holistic and systematic approach that utilizes natural resources and the concept of ecological wisdom to reap sustainable environmental, economic and social benefits to fulfill the concept of living in harmony with nature. This book is a valuable resource for civil- and environmental engineering researchers as well as organizations engaged in eco-restoration practices.

This book uses theories, hypotheses, policies, practical insights and case studies to introduce and elucidate green building materials for sustainable construction. Cement is the most widely used building material in construction; however, it is not sustainable, being responsible for 7% of global carbon dioxide emissions and consuming huge quantities of energy. In order to limit the ecological damage, sustainable building materials are needed. Ecosystems are a source of important lessons and models for transitioning the built environment onto a sustainable path that opens options for sustainable building material in construction. The book provides a guide for readers seeking knowledge on sustainable building materials with the potential to lower environmental impact by reducing CO2 emission throughout the building’s lifecycle. 

The book is motivated by recent rapid advances in sustainable building materials production, including green building materials made ofindustrial by-products and recycled wastes, earth materials, plant-based materials, microbial-based materials or supplementary cementitious materials, to reduce the environmental impacts of traditional building materials. Discussing the development and applications of various sustainable building materials, including related case studies, and addressing the environmental issue with a holistic and systematic approach that creates an ecology of construction for sustainability in infrastructures, it offers promising solutions to achieve renewable and sustainable building materials for the future.