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Question
How do composting toilet systems help improve sewage treatment?
a. Sewage flows into a passive solar greenhouse.
b. Waste is converted to a soil-like humus that can be used as a fertilizer.
c. Water passes through an artificial marsh made of sand and gravel filtering out organic waste.
d. Household sewage and wastewater is pumped into a settling tank.
e. Aerobic bacteria remove as much as dissolved and biodegradable, oxygen- demanding organic wastes.
Answer
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Related questions
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