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TEXAS ON-SITE SEWAGE FACILITIES OSSF EXAM QUESTIONS WITH VERIFIED ANSWERS
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TEXAS ON-SITE SEWAGE FACILITIES OSSFEXAM QUESTIONS WITH VERIFIED ANSWERS
2024-2025
Acceptable
is a state in which a component is performing its intended function and is
deemed operational.
Adsorption
permits pollutants in wastewater to link with media particles, slowing their flow
through the media and allowing nutrients to be absorbed by plants and
microorganisms.
Aerobic
is a condition that requires oxygen. Aerobic microorganisms require oxygen to
survive and degrade pathogens in wastewater.
Alkalinity
refers to the ability (or inability) of wastewater to neutralize acids.
Ammonia
is a nitrogen-hydrogen molecule with the chemical formula NH3. Ammonia is
most commonly used in fertilizer production, but it is also an element in several
household glass cleaners. In septic tanks, nitrogen takes the form of ammonium.
Anaerobic
is a state characterized by the absence of oxygen. Anaerobic organisms receive
oxygen by breaking down oxygen-containing chemical molecules.
Aquifer
, is a geological feature that may retain, transport, and release water to a well or
spring.
Assimilation
is the process of converting a nutrient into a form that an organism can digest.
Biochemical
is a therapeutic method that combines biological and chemical treatment. The
two processes overlap, and it can be difficult to determine which therapy
activities are biological and which are chemical.
Biochemical Oxygen Demand (BOD 5)
is the amount of oxygen absorbed by bacteria during the breakdown of organic
material. It indicates the total strength of the effluent.
Biological Oxidation
occurs when bacteria degrade organic materials into water and carbon dioxide
(CO2). Oxidation lowers BOD5, eliminates pathogens, and performs best under
aerobic circumstances.
Biological processes
Treatment options include natural die-off, predation, biological oxidation, and
mineralization.
biomat
A ______ is the biological accumulation of wastewater-treating organisms on a
treatment media.
Blackwater
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