Waste activated sludge (WAS) Solids removed/wasted from a biological process,
such as activated sludge process, to prevent an excessive buildup in the system.
Waste disposal Removing and destroying or storing damaged, used or other
unwanted domestic, agricultural or industrial products and substances for final
disposal by burning, burial at landfill sites or at sea, and recycling.
Waste management Waste management includes the activities and actions
required to manage waste from its inception to its final disposal. This includes
the collection, transport, treatment, and disposal of waste, together with monitoring and regulation of the waste management process.
Wastewater renovation Treatment of wastewater to a degree that the wastewater
becomes a useful water resource.
Wastewater (a) Water that has been used and contains dissolved or suspended
waste materials. (b) The used water and solids from a community that flow to a
treatment plant. Storm water, surface water, and groundwater infiltration also may
be included in the wastewater that enters a wastewater treatment plant. The term
“sewage” usually refers to household wastes, but this word is being replaced by
the term “wastewater.”
Watch A notice used when the risk of a hazardous weather event has increased
significantly, but its occurrence, location, and/or timing is still uncertain. It is
intended to provide enough lead time so that those who need to set their plans in
motion can do so.
Water quality management The water-quality-related activities include the systematic collection of physical, chemical, and biological information, and the
analysis, interpretation, and reporting of those measurements, according to a
preplanned design and structure.
Water quality It refers to the chemical, physical, biological, and radiological
characteristics of water. It is a measure of the condition of water relative to the
requirements of one or more biotic species, or to any human need or purpose.
Water reclamation It is a process consisting of proper wastewater treatment to a
degree that the treated water can be directly or indirectly reused/recycled.
Water resources Water in various forms, such as rain, snow, ice, clouds, surface
water, groundwater, reclaimed water, or reused water that is potentially useful for
domestic, agricultural, industrial, commercial, or recreational applications.
Water vapor The most abundant greenhouse gas, it is the water present in the
atmosphere in gaseous form. Water vapor is an important part of the natural
greenhouse effect. While humans are not significantly increasing its concentration through direct emissions, it contributes to the enhanced greenhouse effect,
because the warming influence of greenhouse gases leads to a positive water
vapor feedback. In addition to its role as a natural greenhouse gas, water vapor
also affects the temperature of the planet because clouds form when excess water
vapor in the atmosphere condenses to form ice and water droplets and
precipitation.
Weather Atmospheric condition at any given time or place. It is measured in terms
of such things as wind, temperature, humidity, atmospheric pressure, cloudiness,
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such as activated sludge process, to prevent an excessive buildup in the system.
Waste disposal Removing and destroying or storing damaged, used or other
unwanted domestic, agricultural or industrial products and substances for final
disposal by burning, burial at landfill sites or at sea, and recycling.
Waste management Waste management includes the activities and actions
required to manage waste from its inception to its final disposal. This includes
the collection, transport, treatment, and disposal of waste, together with monitoring and regulation of the waste management process.
Wastewater renovation Treatment of wastewater to a degree that the wastewater
becomes a useful water resource.
Wastewater (a) Water that has been used and contains dissolved or suspended
waste materials. (b) The used water and solids from a community that flow to a
treatment plant. Storm water, surface water, and groundwater infiltration also may
be included in the wastewater that enters a wastewater treatment plant. The term
“sewage” usually refers to household wastes, but this word is being replaced by
the term “wastewater.”
Watch A notice used when the risk of a hazardous weather event has increased
significantly, but its occurrence, location, and/or timing is still uncertain. It is
intended to provide enough lead time so that those who need to set their plans in
motion can do so.
Water quality management The water-quality-related activities include the systematic collection of physical, chemical, and biological information, and the
analysis, interpretation, and reporting of those measurements, according to a
preplanned design and structure.
Water quality It refers to the chemical, physical, biological, and radiological
characteristics of water. It is a measure of the condition of water relative to the
requirements of one or more biotic species, or to any human need or purpose.
Water reclamation It is a process consisting of proper wastewater treatment to a
degree that the treated water can be directly or indirectly reused/recycled.
Water resources Water in various forms, such as rain, snow, ice, clouds, surface
water, groundwater, reclaimed water, or reused water that is potentially useful for
domestic, agricultural, industrial, commercial, or recreational applications.
Water vapor The most abundant greenhouse gas, it is the water present in the
atmosphere in gaseous form. Water vapor is an important part of the natural
greenhouse effect. While humans are not significantly increasing its concentration through direct emissions, it contributes to the enhanced greenhouse effect,
because the warming influence of greenhouse gases leads to a positive water
vapor feedback. In addition to its role as a natural greenhouse gas, water vapor
also affects the temperature of the planet because clouds form when excess water
vapor in the atmosphere condenses to form ice and water droplets and
precipitation.
Weather Atmospheric condition at any given time or place. It is measured in terms
of such things as wind, temperature, humidity, atmospheric pressure, cloudiness,
492
M.-H. S. Wang and L. K. Wang