Water Pollution and Its Impact Quiz

BraveIndium avatar
BraveIndium
·

Start Quiz

Study Flashcards

30 Questions

What type of pollution occurs when industrial plants release artificially heated water into natural water environments?

Thermal pollution

Which factor contributes to the disappearance of species intolerant to warm conditions due to water pollution?

Lower oxygen levels in heated water

What human activity can be a source of water pollution through sediment runoff?

Deforestation

Which type of contamination is described as anthropogenic in origin in the text?

Intensive farming and grazing

What event can lead to an increase in suspended material content in lakes and rivers, causing pollution?

Hurricanes and heavy rainfall

Which of the following can result in water with no dissolved oxygen coming to the surface of lakes?

Occasional water overturn

What is the primary purpose of biostimulation in bioremediation?

To stimulate the growth of naturally occurring microbial communities to break down contaminants

What are the common nutrients added during biostimulation to enhance microbial growth?

Phosphorus and nitrogen

What is the main function of bioaugmentation in bioremediation?

To introduce organisms with high degradation abilities to the contaminated site

What is the purpose of bioventing as a biological treatment technology?

To enhance indigenous bacteria's activity for biodegradation

What kind of microbial cultures can be applied during bioaugmentation?

A mixture of native and non-native microbial cultures

How does biostimulation primarily help in bioremediation?

By providing necessary nutrients to stimulate the growth of chemical-degrading microorganisms

What is the role of zinc in the environment as mentioned in the text?

Aids in wound healing

What is the significance of Coliform bacteria in water as mentioned in the text?

Are indicators of pathogenic viruses and bacteria

How do people usually get infected with Typhoid fever according to the text?

By consuming food washed with contaminated water

What is the main cause of Cholera as discussed in the text?

Consumption of contaminated food or water

How do contaminants like bacteria, viruses, and parasites affect human health according to the text?

By causing waterborne diseases

Which of the following sources contribute to zinc entering the environment as highlighted in the text?

Metal plating and industrial waste

What limits the rate at which bacteria and other life consume hydrocarbons in bioremediation?

Availability of phosphorus and nitrogen

What do microorganisms use as food and energy sources in bioremediation?

Pollutants such as oil, solvents, and pesticides

What is necessary to stimulate the growth of certain microorganisms in bioremediation?

Nutrients, temperature, and food combinations

Why does adding air improve conditions for thriving microorganisms in bioremediation?

To speed up the process

What is a disadvantage of bioremediation compared to conventional techniques?

Less predictable results

What determines the completion time of the bioremediation process?

Size of the polluted area

What is one of the key objectives of the 2004 Philippine Clean Water Act?

To protect water bodies from pollution

Which of the following actions is prohibited by the 2004 Philippine Clean Water Act?

To operate facilities that discharge water pollutants without permits

What is not allowed under the 2004 Philippine Clean Water Act?

Transporting prohibited chemicals into water bodies

According to the Act, what is not permitted in relation to water pollutants?

Discharging water pollutants with valid permits

Which of the following is a violation of the 2004 Philippine Clean Water Act?

Transporting prohibited chemicals into water bodies

What does the 2004 Philippine Clean Water Act aim to minimize?

Pollution from land-based sources

Study Notes

Biostimulation

  • Involves stimulating naturally occurring microbial communities to break down contaminants by providing them with nutrients and other needs.
  • Adds nutrients to a contaminated site to encourage the growth of naturally occurring chemical-degrading microorganisms.
  • Methods include adding oxygen and various nutrients such as phosphorus and nitrogen, or elevating available carbon to increase naturally occurring microbes.
  • Optimizes environmental conditions such as aeration, altering pH, and temperature control.

Bioremediation Approaches

  • Bioaugmentation: selects organisms with high degradation abilities and inoculates the contaminated site with indigenous or exogenous microbial cultures.
  • Biostimulation: stimulates naturally occurring microbial communities to break down contaminants.

Bioventing

  • An in-situ remediation technology that uses microbes to biodegrade organic constituents in the groundwater system.
  • Enhances indigenous bacteria's activity and stimulates natural in situ biodegradation of hydrocarbons by inducing oxygen or airflow into the unsaturated zone.
  • Adds nutrients if necessary.

Water Pollution

  • Pathogenic microbes can be introduced into natural water bodies from surface runoff from livestock grazing and untreated sewage.
  • Physical pollution includes trash, sediment pollution, thermal, and other suspended loads.
  • Thermal pollution occurs when industrial plants release artificially heated water into natural water environments, causing changes in growth rates or respiration.

Sources of Water Pollution

  • Anthropogenic sources: deforestation, intensive farming and grazing, fertilizers, pesticides, industrialization, urbanization, different construction works, and automobiles.
  • Natural processes: events like hurricanes and torrential rainfall, occasional overturn of water in lakes, thereby bringing water with no dissolved oxygen to the surface.

Bioremediation

  • Focuses on stimulating the growth of certain microorganisms that use pollutants such as oil, solvents, and pesticides for food and energy sources.
  • Microorganisms turn toxins into tiny quantities of water and harmless gases such as carbon dioxide.
  • Requirements: right temperature, nutrients, and food combinations.
  • Advantages: cost-effective, permanent solution, no need for extensive equipment and labor, nature-based process.
  • Disadvantages: takes time, hard to measure and see the results, less predictable than conventional techniques, cannot completely break down some heavy metals.

Republic Act No. 9275 (Philippine Clean Water Act)

  • Seeks to protect water bodies from pollution from land-based sources.
  • Prohibits discharging or depositing water pollutants, removing or injecting pollutants into the soil, and operating facilities without valid permits.

Contaminants and Chemicals in Groundwater

  • Microbiological contaminants: coliform bacteria, viruses, and parasites.
  • Causes waterborne diseases such as polio, cholera, typhoid fever, dysentery, and infectious hepatitis.
  • Zinc is a significant sludge component, naturally present in water, and can cause unpleasant taste and health effects in high doses.

Test your knowledge on the introduction of pathogenic microbes, physical pollution, and thermal pollution into natural water bodies and their effects. Learn about the sources and consequences of water pollution.

Make Your Own Quizzes and Flashcards

Convert your notes into interactive study material.

Get started for free

More Quizzes Like This

Water Pollution and Aquatic Ecosystems
10 questions
Water Pollution
40 questions

Water Pollution

BoundlessObsidian4130 avatar
BoundlessObsidian4130
Water Pollution Overview Quiz
12 questions

Water Pollution Overview Quiz

EncouragingMossAgate2174 avatar
EncouragingMossAgate2174
Use Quizgecko on...
Browser
Browser