Thursday, March 27, 2014

Sewage Free Response and Chapter 21 reminders

3/27/2014

Reminders:

Chapter 21 test and e-learn/notes due tomorrow.
Garbology lab due, results will be presented tomorrow.
Landfill due Wednesday, 4/2. Make sure you look at the rubric.


17 comments:

  1. e. one pollutant that is targeted during disinfection are pathogens.

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  3. e.) A pollutant targeted is bacteria since the processing of clean water is essential. Bacteria can contribute to the rise of more which is why this microorganism is highly targeted during disinfection.

    A commonly use method is the use of chemicals to kill bacteria. Bleach (Chlorine) in some waters are used to kill off bacteria.

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  4. Question C:
    The treatment plants will create a large amount of solid waste which we would later have to move to somewhere els.

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  6. B) The pollutants can be removed by the physical processes of screening. Screening easily separates and removes large matter carried along by the raw water, which might negatively affect the efficiency of later treatment procedures or make their implementation more difficult.

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  7. Primary treatment targets solid waste and food waste (suspended solids) and it is removed by primary sedimentation tanks that collect a sludge to separate the solids and liquids then the contents are passed through anaerobic digestion that consist of microorganism breaking down biodegradable material without oxygen but this only removes about a third of pollution and virtually none of the dissolved materials in the liquid. Secondary Treatment uses aerobic organisms in oxygen beds to break down organic matter into harmless substances. It targets substances that are left from primary treatment such as microscopic debris. -Diana Question B

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  8. A) The Primary treatment is targeting Solid Components in the water such as trash and physical biological waste while the Secondary treatment is aiming at dissolved biological components such as remains of fecal matter and any bacteria present in the water.

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  9. (C) When creating a sewage treatment plant there are factors that need to be considered. The primary and secondary treatments are both going to have a process in which there will be a solid waste outcome after treating the water and separating it from the solid waste. Therefore, the solid waste that will be created will eventually accumulate and as this article mentions, the Fremont River is the dumping ground. Finding better solutions is what Dr. Goodwin is looking for and therefore end the dumping of the solid waste in the river. The river is an ecosystem that may become dangerous for living organisms inhabiting it.

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  10. Maria Mendez ,

    One component of sewage of sewage that would be targeted by primary removal would be material such as rocks and gravel. One component that would be targeted by secondary treatment would be organic materials such as human wastes, soaps and detergents.

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  11. Rene Manzano : Question D : A landfill problem that will occur is that the landfill waste may take up much space in the landfill causing them to either expand or to create a new landfill. An agriculture problem will be the contamination of the soil due to the leachate the landfill will create.

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  12. C. sewage treatment plants create solid waste by substances being removed during primary and secondary treatment.

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  13. Barbara Trevino : One common pollutant in water is bacteria and it is usually treated (removed) by filters for micro-organisms.

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  14. D) A landfill problem to the environment would be it takes up space of land which could be use for other reasons. For agriculture land the problem of transporting waste to landfills is seepage of leachates to groundwater contaminating the soil of plants for agriculture.

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  15. One component of the sewage that is targeted for removal by primary treatment includes large objects and materials like rocks and secondary treatment removal includes dissolved materials like soap.

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  16. E.) In sewage treatment facilities, there are various pollutants that inhabit the area like bacteria. One of the types of bacteria that is common is E. Coli. In order to maintain a safer environment and area, it must be continuously disinfected with bleaches, and chlorines to prevent grave things like viruses to be spread.

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