► Description: |
This volume provides state-of-the-art
information on soil-water interactions in
wastewater systems, characterization of
wastewater, modes of treatment, safety of
wastewater use, water conservation
technologies involved in recycling of
sewage in fish culture, biogeochemical
cycling bacteria and nutrient dynamics,
ecosystem resilient driven wastewater
reclamation, bioremediation, aquaponics,
ecological integrity, culture practices of
fish farming, microbial food web
phenomena, fish diseases, environmental
economics of wastewater, environmental
risk assessment, environmental law and
regulations. Given its breadth of
coverage, the book will be useful to
researchers, teachers, students,
administrators, planners, farmers and
entrepreneurs interested in the profitable
use of wastewater in the
wastes-into-wealth framework of for the
benefit of humanity, and in achieving the
targets for sanitation and safe wastewater
reuse by 2030, specified in the United
Nations’ Sustainable Development Goals.
Concerns are growing about the quality and
quantity of fresh water, as severe crises
are expected in the near future. Climate
change has further worsened the strain on
inland water resources, with its major
impacts on ecosystems and human life. It
is most urgent to protect and conserve
inland water resources to maintain vital
ecosystem functions. Despite the immense
nutrient potentials of wastewater in terms
of phosphorus, nitrogen and potassium and
increasingly high rates of
urbanization-based wastewater generation,
wastewater has traditionally been
overlooked as a resource. This produces a
threefold loss – environmental
degradation, monetary losses from
fertilizers, and water. As a result,
municipal wastewater offers a win-win
strategy for water conservation and
environmental protection, while also
turning waste into wealth in the form of
fish biomass and allied cash crops.
Wastewater-fed aquaculture refers to a
unique, integrated biosystem in which the
wastes generated by the first system are
used by the next subsystem. In
wastewater-fed aquaculture biosystems, the
organic wastes are recycled into fish
biomass mediated through a complex
microbial/autotrophic/heterotrophic food
web mechanism.
|