45 The main or stituent ( 99.9%) of raw sewage is a fecal wastes b. paper and re

Question

45 The main or stituent ( 99.9%) of raw sewage is a fecal wastes b. paper and related matterc household chemicals d. gnt (sand) e. water 46. The main feature of an aeration tank in a secondary treatment is a to remove the dissolved inorganic materials with air forced through activated charcoal b. to aerate the water and remove small inorganics like grit in the sewage c. to aid with the disinfections of pathogens with a stream of peroxide bubbles through the water d. air is bubbled up to enhance the respiration of organisms feeding on colloidal materials in the sewage e. to provide enough oxygen break up and dissolve large pieces of fecal material 47. Sludge from the Secondary Claniier that "goes back to the Aeration Tank is called the RAS aka a. Returned Raw b. Return Activated c Retun Treated d. Retumed Oxidized e. Return Thick Sludge 48. The Horton Sphere in a sewage plant was designed to hold a. liquid chlorine b. digested sludge cmethane gas d. raw fecal material e diesel fuel 49 Sewage Sludge a. Can be made into a sludge cake and can be land-filled b. can be dried, burned and used to heat water and produce power c. can be used to produce methane gas after decomposition by anaerobic bacteria d. can be composted and used on farmland e. all of these. 50 Most of the final disinfections of waste water (like Cedar Creek) in the U.S. is done by adding b concentrated acids such as sulfuric or hydrochloric acid chlorine concentrated bases such as caustic soda or lye d. methane gas and aerating the water e granulated activated charcoal to filter pathogens Methane gas production in a sewage plant is added as the final disinfectant before releasing the effluent water 51 b removes the nitrogen and phosphorus from the raw sewage c occurs with aerobic bacteria decomposing sludge in the Horton Sphere d occurs with anaerobic bacteria decomposing the sludge in the digesters The Cedar Creek Plant currently sends its Treated Effluent Water to Near the East Meadow Nassau County Jail facility to recharge the aquifers sprinkle the lawns in the Nassau County Park system the treated water is distributed to local Water Districts to be treated and given to the public off the waters of Jones Beach, about 6 miles from the plant selected recharge basins around Nassau County 52 a. b. c. d. e. 53 BOD Means? Biotic Oxygen Depletion Biochemical Oxygen Demand d. Basic Oxidizing Discharges e. Basic Oxygen Demand causes Osteomalicia (Brittle bones) and cancers, and mutagenic problems 54 Excessive Hinti We were shown a picture of a Japanese man who displayed Bowed Legs, because support the upper torso of his body. This is a substance your body absolutely does not need a. cadmium b. Iron ccopper d. plasmodium parasite e.nitrates

Explanation / Answer

45) Option e is correct

Water

Raw sewage is wastewater that has not been treated. It comes from residential properties, like houses and apartments, as well as commercial buildings and industrial and agricultural processes. Essentially, it is the liquid waste that comes from houses and businesses. Not surprisingly, it can contain a wide variety of contaminants and present a health hazard if left untreated where humans or animals can come into contact with it. For example, raw sewage may overflow from a sanitary sewer after a period of very heavy rainfall.

Related Questions

Navigate

• Browse (All)
• Browse 4
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.