Sewage Treatment Exam Questions and Answers 100% Accurate
Sewage treatment - ANSWER-Sewage treatment is the process of removing contaminants from wastewater, primarily from household sewage to produce water suitable to return to the environment.
Stages of sewage treatment - ANSWER-Primary- solids are separated from waste water stream
Secondary- dissolved biological matter is converted into solid mass with microorganisms
Tertiary- biological wastes are neutralized, then disposed or reused, the treated water is
disinfected chemically or physically
Biomagnification - ANSWER-The buildup of a toxin as it moves through a food chain with the highest levels being in the top predators
Bioaccumulation - ANSWER-The buildup of a toxin or pollutant in an organism or part of
an organism
Municipal Solid Waste - ANSWER-Waste from residences and businesses that includes
durable good, non-durable goods, containers and packaging, food wastes and yard trimmings, and miscellaneous inorganic wastes, construction and demolition waste, rocks & dirt
Hazardous Wastes - ANSWER-Corrosive, ignitable, reactive, toxic substances along with wastes (solvents) from manufacturing and sludge from industries and petroleum refining
Comprehensive, Environmental, Response, Compensation, & Liability (CERCLA or Superfund) - ANSWER-Established prohibitions and requirements on abandoned and closed hazardous waste sites; created a tax on chemical and petroleum companies to fund federal response to release of wastes into the environment; provided for liability of persons responsible for the release; created a trust fund for cleanup if the responsible party wasn't identified.
Minamata Disease - ANSWER-one of the worst pollution disasters in history, late 50s-
early 60s in the Japanese village of Minamate; called the disease of the dancing cats; sleeping fishing village; cats would twitch violently, run around in circles, foam at the mouth, often slipped into paralysis, became comatose and died; seabirds began falling from the sky or losing coordination and crashing into buildings; people began to experience blurred vision, numbness in arms and legs, severe headaches, metallic taste in mouth; turns out a local vinyl chloride factory, Chisso Corporation, had been
Sewage treatment - ANSWER-Sewage treatment is the process of removing contaminants from wastewater, primarily from household sewage to produce water suitable to return to the environment.
Stages of sewage treatment - ANSWER-Primary- solids are separated from waste water stream
Secondary- dissolved biological matter is converted into solid mass with microorganisms
Tertiary- biological wastes are neutralized, then disposed or reused, the treated water is
disinfected chemically or physically
Biomagnification - ANSWER-The buildup of a toxin as it moves through a food chain with the highest levels being in the top predators
Bioaccumulation - ANSWER-The buildup of a toxin or pollutant in an organism or part of
an organism
Municipal Solid Waste - ANSWER-Waste from residences and businesses that includes
durable good, non-durable goods, containers and packaging, food wastes and yard trimmings, and miscellaneous inorganic wastes, construction and demolition waste, rocks & dirt
Hazardous Wastes - ANSWER-Corrosive, ignitable, reactive, toxic substances along with wastes (solvents) from manufacturing and sludge from industries and petroleum refining
Comprehensive, Environmental, Response, Compensation, & Liability (CERCLA or Superfund) - ANSWER-Established prohibitions and requirements on abandoned and closed hazardous waste sites; created a tax on chemical and petroleum companies to fund federal response to release of wastes into the environment; provided for liability of persons responsible for the release; created a trust fund for cleanup if the responsible party wasn't identified.
Minamata Disease - ANSWER-one of the worst pollution disasters in history, late 50s-
early 60s in the Japanese village of Minamate; called the disease of the dancing cats; sleeping fishing village; cats would twitch violently, run around in circles, foam at the mouth, often slipped into paralysis, became comatose and died; seabirds began falling from the sky or losing coordination and crashing into buildings; people began to experience blurred vision, numbness in arms and legs, severe headaches, metallic taste in mouth; turns out a local vinyl chloride factory, Chisso Corporation, had been
