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BU 1 > Sewage Disposal Systems > Flashcards

Sewage Disposal Systems Flashcards

0
Q

An excreta disposal system serving a group of dwelling units

A

Communal excreta disposal system

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1
Q

An excreta disposal system serving a dwelling unit

A

Individual sewage disposal system

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2
Q

A pit for the reception or detention of sewage

A

Digestive cesspool

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3
Q

The pipe from within the distribution box to the drainfield

A

Distribution line of a leaching tile system

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4
Q

A small concrete receptacle between the septic tank and the drain field in which lines of drain tiles extends and which acts as surge tank to distribute the flow of sewage equally to each line of drain tiles

A

Distribution box

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5
Q

The sewage containing human excrement and other liquid household waste. Also called sanitary sewage

A

Domestic sewage

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6
Q

A system of collection, transportation, treatment and disposal of sewage

A

Sewage disposal system

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7
Q

A common sewer to which all abutters have equal rights of connection

A

Public sanitary sewer

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8
Q

A toilet facility located at public places like markets, bus stations, buildings etc. intended for public use

A

Public toilet

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9
Q

Distance of cesspool to domestic water supply

A

30 meters

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10
Q

Distance of cesspool from any structure

A

6 meters

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11
Q

Distance of cesspool from lot line

A

3 meters

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12
Q

Distance of cesspool from a septic tank

A

3 meters

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13
Q

A lined and covered excavation in the ground which receives the discharge of domestic sewage or other organic wastes from a drainage system, so designed as to retain the organic matter and solids, but permitting the liquids to seep through the bottom and sides; also called leaching cesspool or previous cesspool

A

Seepage pit

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14
Q

A structure which is not connected to a sewage system and is used for the reception, disposition and storage of fees or other excreta from the human body; also an outhouse used for the disposition of excrement

A

Privy

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15
Q

A watertight receptacle which receives the discharge of a plumbing system or part thereof and is designed to accomplish the partial removal and digestion of the suspended solid matter in the sewage through a period of detention

A

Septic tank

16
Q

The septic tank capacity may be determined using sewage flow quantity value per given occupancy or type of building. For buildings with occupants the number of persons to be served shall be computed based on the number of rooms and considering each room occupied by two persons or on the basis of the actual number of persons served by the tank

A

Septic tank design

17
Q

Shall be fitted with a sanitary tee or baffle

A

Outlet

18
Q

Shall extend through the scum layer above the liquid level of the tank to approximately 25mm from the inside top from the tank

A

Outlet baffle or sanitary tee

19
Q

Shall be at least not less than 50 mm above the invert of the outlet pipe

A

Invert of the inlet pipe

20
Q

Shall be provided to divert the incoming sewage downward

A

Vented inlet baffle or sanitary tee

21
Q

Shall penetrate at least 150 mm below the liquid level

A

Baffles or tee

22
Q

Shall not be greater than that allowed for the baffle or the sanitary tee

A

Penetration

23
Q

Shall not be less than 50 mm above the liquid level of the tank

A

Invert level of the inlet

24
Q

Shall have a free vent area equal to the required cross-sectional area of the house sewer discharging therein

A

Inlet and outlet pipe fittings or baffles, through compartment partitions

25
Q

Tank that is generally rectangular in shape

A

Septic tank

26
Q

The septic tank shall have a liquid drawing depth not less than ____ meters

A

1.20

27
Q

The vertical distance for the liquid level to the inside top of the tank shall be at least ___ mm

A

200

28
Q

May have various shape provided the capacity, inlet, outlet and depth requirements met

A

Septic tank

29
Q

The septic tank shall be provided with an inspection manhole ___sq. m in minimum area or by an equivalent removable cover slab to the inlet and outlet devices and to the compartment of the tank for inspection and cleaning.

A

0.36sq. m (4sq. ft)

30
Q

Shall not be made to enter the septic tank or any part of the treatment system

A

Roof, foundation and area drains and cistern overflows

31
Q

The septic tank shall be located not less than ___ m from any well, cistern or other sources of drinking water supply

A

25

32
Q

The septic tank shall be located not less than __ m from any water service line

A

1.5

33
Q

The septic tank shall be located not less than ___ m from any water main

A

3.0m

BU 1 (5 decks)

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