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Preventive And Social Medicine II > Waste Disposal, Sewage, Landfill > Flashcards

Waste Disposal, Sewage, Landfill Flashcards

1
Q

Chain effects of clean water

A

Mills-Reenke Phenomena

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2
Q

Provision of sanitary facilities for human waste can reduce the incidence of cholera by as much as

A

68%

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3
Q

The provision of safe water supply can decrease it by

A

73%

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4
Q

Where both toilets and watee supply provided, the incidence can be reduced as much as

A

76%

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5
Q

Nonspecific diarrhea

A

Viral or Bacterial

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6
Q

Ameobic dysentery

A

Protozoan

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7
Q

What are the major aspects of excreta disposal?

A

Proper construction
Satisfactory disposal
Continued proper utilization and maintenance

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8
Q

What are the level 1 pit latrines?

A

Sanitary pit privy
Antipolo type
Ventilated improved pit (VIP) latrine

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9
Q

What is made up of a pit, squatting plate, superstructure and exhaust pipe?

A

Sanitary pit privy

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10
Q

What is built on the same principle as sanitary toilet, except its location?

A

Antipolo type

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11
Q

What is situated in an elevated area?

A

Antipolo type

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12
Q

What has superstructure that is slightly away from the pit and a tall, vertical vent pipe with a fly screen that is fitted outside of the latrine superstructure?

A

VIP latrine

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13
Q

What is much cheaper sanitation technology that needs only a fraction of the volume of water which is conventional flush toilet requires?

A

Level 2 - pour flush toilet

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14
Q

What is water sealed and hygienic?

A

Level 2 - pour flush toilet

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15
Q

What are examples of level 2 - pour flush toilet?

A

A. Pour flush with pit

B. Pour flush with septic tank

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16
Q

What are usually found in urban areas?

A

Level 3 flush toilet

17
Q

What are 2 major components of level 3 - flush toilet?

A

1) Latrine

2) Septic tank

18
Q

Soluble solids settles to the tank bottom, accumulate and are anaerobically digested.

A scum of lightweight rises to the top.

The clarified liquid flows through a subsurface soil absorption sys.

A

Level 3 - flush toilet

19
Q

It has 2 variations

1) the flush toilet w septic tank
2) the flush toilet w septic tank connected to a sewer

A

Level 3 or flush toilet

20
Q

What is flexible and adaptable to a wide variety of individual household disposal requirements?

A

Level 3 - flush toilet

21
Q

The septic tanks needs a little mechanical maintenance bcs it has no moving parts

A

Level 3 or flush toilet

22
Q
  • liquid travel faster than solid
  • large vol contaminates wide areas
  • detergents in waste cause waste to travel long distance
A

Quality and quantity of waste materials

23
Q

Uphill will contaminate downhill and underground water, it follows the topography

A

Location of excreta disposal facility in relation to underground water supply source

24
Q

Sand and clay soils can filter organisms and pathogens w more efficiency than gravel and other materials

A

Soil conditions extending to the water bearing strata

25
Q

The higher the rate of pumping, the wider the arra where contaminats may be sucked. Keep it as far qs possible from underground water source.

A

Rate of pumping in underground water source

26
Q

Safe distance between underground water supplies and excreta and sewage disposal

A
  • Quality and quantity of waste materials
  • Location of excreta disposal facility in relation to underground water supply source
  • Soil conditions extending to the water bearing strata
  • Rate of pumping in underground water source
27
Q

1 m2 per person
Max depth is 1m
Interior floor slope of 1-2%
Configuration is ideally rectangular w an aspect ratio of 4:5 width:length
Inlet and outlet structure are made of rocks

A

Design parameters

28
Q

Water loving plants which thrive in waterlogged conditions

A

Haliconia
Birds of Paradise
Bandera Espanola
Horsetail

29
Q

Water loving plants which thrive in waterlogged conditions

A

Haliconia
Birds of Paradise
Bandera Espanola
Horsetail

30
Q

RA 9003 January 26, 2001

A

An act providing for an ecological solid waste mngmt prog, cresting the necessary institutional mechanisms and incentives, declaring certain acts prohibited and providing penalties, appropriate funds therefore, and other purposes

Preventive And Social Medicine II (32 decks)

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