Quick Answer: How Buildings Contaminate Water Supply?

How do you contaminate water supply?

There are a number of ways to contaminate water: Improperly disposed of chemicals, animal wastes, pesticides, human wastes, wastes injected deep underground and naturally occurring substances all can contaminate drinking water.

What can lead to contamination of a city water supply?

There are many sources of water contamination, including naturally occurring chemicals and minerals (for example, arsenic, radon, uranium), local land use practices (fertilizers, pesticides, concentrated feeding operations), manufacturing processes, and sewer overflows or wastewater releases.

What is water supply system in buildings?

1. Water Supply AROH THOMBRE. 2. Water supply is a provision to deliver Water to consumer with appropriate quality, quantity and pressure by public utilities, commercial organizations, community endeavors or by individuals, usually via a system of pumps and pipes.

What is a hazard associated with water?

Water-related hazards like floods, droughts, pollution and related issues, are increasing in frequency and intensity almost everywhere around the globe due to population growth and effects of climate change.

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What are the two main steps used to treat water from lakes?

Filtration – the water is sprayed onto specially-prepared layers of sand and gravel. As it trickles through, smaller insoluble particles are removed. The filter beds are cleaned periodically by pumping clean water backwards through the filter. Chlorination – chlorine gas is injected into the water to sterilise it.

What are the 5 steps of water treatment?

These include: (1) Collection; (2) Screening and Straining; (3) Chemical Addition; (4) Coagulation and Flocculation; (5) Sedimentation and Clarification; (6) Filtration; (7) Disinfection; (8) Storage; (9) and finally Distribution.

What are the 10 causes of water pollution?

There are many causes of water pollution, some of them are:

  • 1- Sewage or wastewater: The waste from households, factories, or agricultural land gets discharged into rivers or lakes.
  • 2- Dumping:
  • 3- Oil pollution:
  • 4- Acid rain:
  • 5- Industrial waste:
  • 1- Diseases:
  • 2- Ruination of the ecosystem:
  • 3- Eutrophication:

What are the 10 effects of water pollution?


  • Destruction of biodiversity. Water pollution depletes aquatic ecosystems and triggers unbridled proliferation of phytoplankton in lakes — eutrophication —.
  • Contamination of the food chain.
  • Lack of potable water.
  • Disease.
  • Infant mortality.

What diseases are caused by polluted water?

Contaminated water and poor sanitation are linked to transmission of diseases such as cholera, diarrhoea, dysentery, hepatitis A, typhoid, and polio.

What are the types of water in a building?

Related articles on Designing Buildings Wiki Greywater. Groundwater. Hot water. Mains water.

What are the various types of water supply systems in buildings?

There are four network types: dead end, gridiron, circular and radial systems. Investment costs for network construction (material, labour, planning for pipes and trenches) as well as maintenance costs (repair, pumping station, leakage control, preventing recontamination) are high.

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Which pipe is used for water supply?

Water pipes can range in size from giant mains of up to 3.65 m in diameter to small 12.7 mm pipes used to feed individual outlets within a building. Materials commonly used to construct water pipes include polyvinyl chloride (PVC), cast iron, copper, steel and in older systems concrete or fired clay.

Can water be a biological hazard?

Unfortunately, the same water that sustains life can also be the bearer of dangerous contaminants in the form of bacteria, viruses and protozoans. These include bacteria such as toxigenic Escherichia coli and Campylobacter, viruses like Norovirus and Hepatitis E, and protozoans like Giardia and Cryptosporidium.

What are the three sources of hazards?

The six main categories of hazards are:

  • Biological. Biological hazards include viruses, bacteria, insects, animals, etc., that can cause adverse health impacts.
  • Chemical. Chemical hazards are hazardous substances that can cause harm.
  • Physical.
  • Safety.
  • Ergonomic.
  • Psychosocial.

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