COMPLETE EXAM SET WITH REAL QUESTIONS
AND CORRECT ANSWERS GRADED A+
◉ Waste water types (5 types)* Answer: 1. Domestic Waste
2. Industrial Waste
3. Ground Water
4. Storm Drain Runoff
5. Municipal Waste
◉ Domestic Waste Answer: It refers to solid waste from homes,
offices and stores (toilets, shower, sinks)
The highest source of water pollution is ______.
◉ Industrial Waste Answer: Waste that comes from the production
of consumer goods, mining, agriculture, hospitals, meat processing,
and petroleum extraction and refining
-must treat their waste prior to dumping into common swear system
,◉ Ground Water Answer: underground water that is held in the soil
and in pervious rocks
can infiltrate sewage system in pipe cracks
◉ Storm Drain Runoff Answer: from rainstorm water
protected by NPDES
◉ Municipal Waste Answer: waste consisting of everyday items that
are discarded by the public-residential, commercial, institutional,
industrial sources that is going to be treated at municipal waste
plant
in large cities common to discharge sewage to directly to oceans
◉ Leachate Answer: the liquid that percolates to the bottom of a
landfill.
can be from rainfall sipping through landfill or intentionally dumped
◉ NPDES Answer: National Pollutant Discharge Elimination System
, Prohibits draining of any kind of waste water onto public streets
◉ What are some physical characteristics of waste water? Answer:
fresh water is 99.8% water and 0.2% solid
also called Grey Water
if sewage water enters lake untreated, nitrification process develops
(algae bloom)
◉ Decomposition (water) Answer: the anaerobic state of bacterial
degradation, no dissolved oxygens in the water
◉ what is the completion of the decomposition state? Answer: Clean
water
◉ Digestion of Sludge? Answer: process which turn highly volatile
and reactive raw organic solid matter into stable inorganic matter
◉ Temperature types of Bacteria?* Answer: 1. Thermophilic Zone
2. Mesophillic Zone
3. Psychrophillic Zone