Lesson 4. Sewage Collection and Disposal

LESSON 4

SEWAGE COLLECTION AND DISPOSAL

TEXT ASSIGNMENT -------------------- Attached memorandum.

MATERIALS REQUIRED ----------------- Figures 14, 16, and 18.

LESSON OBJECTIVE ------------------- To teach you how to design sewage

systems

in

the

theater

of

operations.

ATTACHED MEMORANDUM

1.

INTRODUCTION

sanitary

conveniences

of

houses,

barracks,

shops,

and

the

like.

This

lesson

covers

design

and

Industrial sewage is the waste from an

maintenance of sewage systems and

industrial process such as dyeing,

treatment facilities. In a theater of

brewing, or papermaking. Storm sewage

operations,

engineer

units

are

is the water and particles carried due

responsible for waste disposal when

to rainfall.

Infiltration is the

waterborne sewage-disposal systems are

ground water and particles which leak

practical and authorized. Decision as

into a sewer through joints or breaks.

to

whether

waterborne

sewage

In TO construction, generally only

collection is practical depends on the

infiltration and sanitary sewage are

theater construction policy, type of

allowed

in

the

sewage

system.

installation, and anticipated period

Unpolluted waste water, such as that

of use.

In the absence of sewer

used for cooling and air conditioning,

facilities, initiation and enforcement

should not be discharged into sanitary

of suitable sanitary measures are the

sewers, and wastes from hydraulic

responsibility

of

unit

commanders.

gasoline

dispensing

systems,

wash

Medical units are responsible for

racks, garages, and shop floor drains

investigating, reporting and making

also should be excluded.

Waste from

recommendations

on

all

matters

laundries,

however,

is

usually

affecting

the

health

of

Army

discharged into the TO sewer system.

personnel.

Other types of industrial waste may be

discharged into the system, depending

2.

TYPES OF SEWAGE

upon

their

effect

on

sewer

pipe

material

and

sewage

treatment

a. Sewage is simply the liquid

processes.

conveyed by a sewer.

It may consist

of any one or a mixture of sanitary

b. Storm

water

runoff

from

sewage,

industrial

waste,

storm

ground

surface,

pavements,

and

sewage, or infiltration.

Sanitary

roofs should not be permitted to

sewage (also called domestic sewage)

enter

a

sanitary

sewer

except

is that sewage which originates in the

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