Water is removed from sludge. Water undergoes aeration to reduce offensive odors. solid waste material settles out.,
What happens during secondary treatment of sewage quizlet?
The objective of secondary treatment is the further treatment of the effluent from primary treatment to remove the residual organics and suspended solids.
What happens to poop in the sewer?
Primary sewage treatment involves basic processes to remove suspended solid waste and reduce its biochemical oxygen demand (BOD) - the amount of oxygen microorganisms must consume to breakdown the organic material present in the wastewater.
What happens to sludge from a sewage treatment plant?
Secondary treatment is a treatment process for wastewater (or sewage) to achieve a certain degree of effluent quality by using a sewage treatment plant with physical phase separation to remove settleable solids and a biological process to remove dissolved and suspended organic compounds.
Which is the main task of a sewage treatment plant quizlet?
From the toilet, your poop flows through the city's sewage system along with all the water that drains from our sinks, showers and streets. From there, it goes to a wastewater treatment plant.Jan 25, 2020
What are the 5 stages of sewage treatment?
Once treated, sewage sludge is then dried and added to a landfill, applied to agricultural cropland as fertilizer, or bagged with other materials and marketed as “biosolid compost” for use in agriculture and landscaping.
What are the 4 stages of the sewage treatment process?
The main purpose of sewage treatment is to lower the BOD by allowing microbes to break down the waste (decomposition).
What is sewage sludge quizlet?
What is Sewage Sludge? a gooey mixture of toxic chemicals, infectious agents, and settled solids removed from wastewater at sewage treatment plants.
What happens at a sewage treatment plant?
As sewage enters a plant for treatment, it flows through a screen, which removes large floating objects such as rags and sticks that might clog pipes or damage equipment. After sewage has been screened, it passes into a grit chamber, where cinders, sand, and small stones settle to the bottom.