BIO 121 - Module 5 Questions with Correct Answers
Question 1:
Outline the operation of a residential In a sanitary septic system, the wastewater is first
sanitary septic system. Be sure to placed into a settlement tank, in which the outflow describe
the main components of goes into the drainage tile. The slow seepage of the system and the
flow of effluent. the outflow/effluent through the tiles filters and
purifies the water using biological action. Lastly, the protozoans and bacteria consume the
organic matter within the water.
Answer:
purifies the water using biological action. Lastly, the protozoans and bacteria consume the
organic
Question 2:
The hydrologic cycle The cycle through which water in the hydrosphere constantly moves
throughout the biosphere;
includes such processes as
evaporation/precipitation, runoff/storage, and groundwater. It relies on evaporation and
precipitation to help move water through ecosystems and purifies water for use by organisms.
Lastly, the three loops of the hydrologic cycle recycle and purify the tiny amount of freshwater
(0.9%) on Earth available for organisms.
Answer:
includes such processes as
Question 3:
Eutrophication
Answer:
A natural process by which nutrients, particularly phosphorus and nitrogen, become highly
Question 4:
Municipal Wastewater Treatment
Answer:
a two or three-stage system based on physical and
, Question 5:
biological processes based on the hydrologic cycle
Municipal Wastewater Treatment (pre- and primary treatment)
-pre-treatment: removes large objects and grit coming into the system
Answer:
Municipal Wastewater Treatment (pre- and primary treatment)
Question 6:
-primary treatment: wastewater is allowed to sit and move very slowly in very large tanks,
which permits the suspended organic matter in the water to settle to the bottom of the tank
and other materials to float to the top (mimics the storage loop of the hydrologic cycle). This
removes colloidal solids (settle) and grease/fats/wax (float)
= a physical treatment. This process removes 30% - 50% of solids in the wastewater
Answer:
permits the suspended organic matter in the water to settle to the bottom of the tank and
other
permits the suspended organic matter in the water to settle to the bottom of the tank and
other
permits the suspended organic matter in the water to settle to the bottom of the tank and
other
permits the suspended organic matter in the water to settle to the bottom of the tank and
other
Question 7:
Biological Oxygen Demand (BOD) This refers to how much oxygen aerobic organisms are using
in a body of water at a specific time.
Additionally, the amount of plant nutrients and
organic matter residing in a body of water typically determines this number.
Answer:
Additionally, the amount of plant nutrients and
Question 8:
What does municipal wastewater Municipal wastewater treatment removes organic treatment
do to reduce BOD? wastewater through a biological treatment to
reduce the Biological Oxygen Demand. The
treatment may also include aerating the water to increase the oxygen present in the area.
Answer:
reduce the Biological Oxygen Demand. Thereduce the Biological Oxygen Demand. The
reduce the Biological Oxygen Demand. The
Question 1:
Outline the operation of a residential In a sanitary septic system, the wastewater is first
sanitary septic system. Be sure to placed into a settlement tank, in which the outflow describe
the main components of goes into the drainage tile. The slow seepage of the system and the
flow of effluent. the outflow/effluent through the tiles filters and
purifies the water using biological action. Lastly, the protozoans and bacteria consume the
organic matter within the water.
Answer:
purifies the water using biological action. Lastly, the protozoans and bacteria consume the
organic
Question 2:
The hydrologic cycle The cycle through which water in the hydrosphere constantly moves
throughout the biosphere;
includes such processes as
evaporation/precipitation, runoff/storage, and groundwater. It relies on evaporation and
precipitation to help move water through ecosystems and purifies water for use by organisms.
Lastly, the three loops of the hydrologic cycle recycle and purify the tiny amount of freshwater
(0.9%) on Earth available for organisms.
Answer:
includes such processes as
Question 3:
Eutrophication
Answer:
A natural process by which nutrients, particularly phosphorus and nitrogen, become highly
Question 4:
Municipal Wastewater Treatment
Answer:
a two or three-stage system based on physical and
, Question 5:
biological processes based on the hydrologic cycle
Municipal Wastewater Treatment (pre- and primary treatment)
-pre-treatment: removes large objects and grit coming into the system
Answer:
Municipal Wastewater Treatment (pre- and primary treatment)
Question 6:
-primary treatment: wastewater is allowed to sit and move very slowly in very large tanks,
which permits the suspended organic matter in the water to settle to the bottom of the tank
and other materials to float to the top (mimics the storage loop of the hydrologic cycle). This
removes colloidal solids (settle) and grease/fats/wax (float)
= a physical treatment. This process removes 30% - 50% of solids in the wastewater
Answer:
permits the suspended organic matter in the water to settle to the bottom of the tank and
other
permits the suspended organic matter in the water to settle to the bottom of the tank and
other
permits the suspended organic matter in the water to settle to the bottom of the tank and
other
permits the suspended organic matter in the water to settle to the bottom of the tank and
other
Question 7:
Biological Oxygen Demand (BOD) This refers to how much oxygen aerobic organisms are using
in a body of water at a specific time.
Additionally, the amount of plant nutrients and
organic matter residing in a body of water typically determines this number.
Answer:
Additionally, the amount of plant nutrients and
Question 8:
What does municipal wastewater Municipal wastewater treatment removes organic treatment
do to reduce BOD? wastewater through a biological treatment to
reduce the Biological Oxygen Demand. The
treatment may also include aerating the water to increase the oxygen present in the area.
Answer:
reduce the Biological Oxygen Demand. Thereduce the Biological Oxygen Demand. The
reduce the Biological Oxygen Demand. The
