Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Physical and Chemical Principles > Environmental Engineering > Flashcards

Environmental Engineering Flashcards

1
Q

Manifest by thought and practice in the solution of problems of environmental sanitation, notably in the provision of safe, palatable and ample public water supplies, the proper disposal of or recycle of wastewater and solid waste, the adequate drainage of urban and rural areas for proper sanitation and control of water, soil and atmospheric pollution and the social and environmental impact of these solutions

A

Environmental engineering

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The revised water usage and classification

A

DAO 34-1990

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The revised effluent regulations

A

DAO 35-1990

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The new regulation for water usage and classification and effluent regulation

A

DAO 2016-08

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The new classification of water added to DAO 2016-08

A

Navigable waters

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Type of water only used for transportation

A

Navigable water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Fresh water classification

A

Class D

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Saltwater classification

A

Class SD

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Class D and Class SD Water classification

A

Navigable waters

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Physical characteristics of water (5)

COTTT

A 
Color
Odor
Turbidity
Temperature
Total solids
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Chemical characteristics of water

PHaNT POCS PhePe

A 
pH
Hardness
Nutrients
Trace metals
Proteins
Carbohydrates 
Oils, fats and greases
Surfactants
Phenols
Pesticides and Agri Chemicals
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Characteristics of water that need to be tested

A

Physical
Chemical
Biological

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Measures of oxygen demand

DoC BoT

A

DO
ThOD
BOD
COD

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Biological characteristics

A

Measures of oxygen demand and kinetics of BOD

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

This physical characteristics of wate generally is a indication of its age

A

Color

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Color of water if there is blood, industrial waste or TNT

A

Red

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Color of wastewater if not pretreated

A

Green

Yellow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

This color is an indication of surface runoff into influential and industrial flows

A

Red or other stuff il color

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

This indicates septic condition of wastewater

A

Black

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Standardized glass tubes for filling up with standard solution colors for visual color comparison with similar tubes filled with solution

A

Nessler tubes

Nessler cylinders

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Colorimeter that uses a phototube or photocell, a set of color filters, an amplifiers and an indication meter for quantitative determination of color

A

Photoelectric colorimeters

Spectrophotometer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Usually caused by gases produced by the decomposition of organic matter or by the substances added to wastewater

A

Odor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Fishy odor is caused by

A

Amines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Ammoniacal scent is caused by

A

Ammonia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Odor of decayed fish

A

Diamonds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Rotten egg smell is caused by

A

Hydrogen sulfide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Skunk odor is caused by

A

Mercaptans

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Rotten cabbage scent is primarily caused by

A

Organic sulfide a

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Fecal odor of wastewater is caused by

A

Skatole

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Usually, the bad odor of wastewater is an indication that the substance contains these elements

A

Nitrogen and sulfur

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

A devices used to measure odor intensity and concentrations of volatile organic compounds by means of their smell

A

Olfactometer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

A measure of the light transmitting properties of water

A

Turbidity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Another test used to indicate the quality of wastewater discharges and natural waters with respect to colloidal and residual suspended matter

A

Turbidity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Measures the intensity of light scatters at 90deg as a beam of light passes through a water sample

A

Nephelometer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Circular disk used to measure water transparency in oceans

A

Secchi disk depth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Units of turbidity

A

JTU
FNU
NTU

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

JTU stands for

A

Jackson turbidity unit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

FNU

A

Formazin nephelometric unit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

NTU

A

Nephelometeric Turbidity Unit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Higher temperatures lower the solubility of the

A

Gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

Increase the rate at which anyone containing microbes attack organic waste, at what temperature

A

High temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

Imhoff cone removes

A

Settle able solids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

When water is evaporated — is determined

A

Total solids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

When the filtrate is evaporated at 103-105 degC, what is being determined

A

Total dissolved solids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

When the filter is being dried at 103-105degC, what is being determined

A

Total suspended solids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

When the TDS is being ignited at 500-600degC, it will produced two components

A

Volatile and fixed dissolved solids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

When the total suspended solids are being ignited at 500-600degC, the TSS is broken down into two components

A

Volatile suspended solids

Fixed suspended solids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

Volatile suspended and dissolved solids is

A

Total volatiles solids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

The fixed suspended and dissolved solids is

A

Total fixed solids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

Total solids is the sum of the total

A

Volatile and suspended solids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

Used to describe the acid or basic properties of water solutions

A

pH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q

Compounds which kill pests

A

Pesticides

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q

MCL stands for

A

Maximum contaminant level

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
54
Q

For pesticide, the MCL for chlordane is

A

0.002

55
Q

MCL for heptachlor is

A

0.0004

56
Q

The MCL for lindane is

A

0.0002

57
Q

The MCL for carbofuran is

A

0.04

58
Q

These are toxic even in small concentrations

A

Heavy metals

59
Q

Causes Minamata Disease

A

Mercury

60
Q

This is a neurological disease characterized by trembling, inability to walk and speak and even serious convulsions that can lead to death

A

Minamata Disease

61
Q

It is responsible for the Itai-Itai disease

A

Cadmium

62
Q

An extremely painful disease that causes disintegration of the bones

A

Itai-Itai disease

63
Q

It is the blue discoloration of the skin and mucous membrane

A

Argyria

64
Q

Argyria is caused by

A

Silver

65
Q

A carcinogenic poison

A

Arsenic

66
Q

Causes neurological disease

A

Chromium

67
Q

Leads to fetal malformation, mental disability, irritability, loss of appetite and reduction of sex drive

A

Lead

68
Q

Amount of oxygen needed to oxidize a substance to carbon dioxide and water

A

Theoretical oxygen demand

69
Q

What is the chemical formula of biomass

A

Search the Internet bitch

70
Q

Measure the amount of oxygen needed to oxidize organic using strong oxidizing agents, usually KMnO4 or K2Cr2O7 in acid media

A

Chemical oxygen demand

71
Q

Measures the total organics in the system

A

Chemical oxygen demand

72
Q

Measure of the amount of oxygen needed by microorganism to decompose biodegradable organics at a specified time, (5 days), temperature 20degC, and pH 7

A

Biological oxygen demand

73
Q

Factors affecting the rate constant of BOD

A

Nature of waste
Temperature
Ability of the organism in the system to utilize the waste

74
Q

Quantity of free molecular oxygen dissolved in the water

A

Dissolved oxygen

75
Q

Chemical formula of the free molecular oxygen

A

O2

76
Q

Factors affecting DO

A

Temperature
Velocity
Salinity

77
Q

This zone is the point where wastewater and fresh water is being mixed

A

Decomposition zone

78
Q

The zone at which the dissolved oxygen level is at minimum

A

Septic zone

79
Q

Zone where the oxygen level increases after its minimum point

A

Recovery zone

80
Q

The point where fish kill happens is calculated by multiplying the velocity by the

A

Critical time

81
Q

The rate at which the oxygen disappears from the bodies of water

A

Deoxygenation rate

82
Q

Treating waste removes — from the sewage which causes pollution

A

Organic matter

83
Q

Treating waste removes — which pose serious health risk

A

Pathogens

84
Q

Disease causing organism

A

Pathogen

85
Q

This treatment process has a little effect in bod reduction

A

Pretreatment process

86
Q

Removes large object that would damage or foul pumps, valves and other mechanical equipment

A

Bar racks

87
Q

Tanks used to remove grits

A

Grit chambers

88
Q

These are dilutes, nonflocculent, free settling materials

A

Type 1 sedimentation

89
Q

Used to macerate wastewater solids by revolving cutting bars

A

Comminuted

90
Q

A technique to improve the effectiveness of both secondary and advanced wastewater treatment

A

Equalization basin

91
Q

Makes sure the wastewater is at constant flow

A

Equalization basin

92
Q

Removal of raw sludge by gravity settling

A

Primary sedimentation basin

93
Q

The controlling parameters of the primary sedimentation basin

A

Overflow rate

94
Q

This type of sedimentation is for dilute flocculent

A

Type 2 Sedimentation

95
Q

Removes soluble BOD that escapes the primary treatment

A

Secondary treatment process

96
Q

Decomposition a under secondary treatment

A

Aerobic decomposition
Anaerobic
Anoxic

97
Q

Consists of bed of coarse material such as stones or plastic material over which wastewater is applied

A

Trickling filters

98
Q

Provide large amounts of surface area where the microorganism cling and grow in a slime on the rocks (attached growth process)

A

Trickling filters

99
Q

Mostly used filter media

A

Look a perry bitch

100
Q

Provide media for the buildup of attached microbial growth, bring the growth into a contact with the wastewater
Aerate the water water and suspend microbial growth in the reservoir

A

Rotating biological contractors

101
Q

Used for the removal of phosphorus and for the removal of heavy metals

A

Chemical precipitation

102
Q

Common precipitates

A 
Lime
Ferric chloride
Soda ash
Ferric sulfate
Alum (hydrate form 17H2O, search)
103
Q

Al electrochemical process used in the removal of colloidal matter in wastewater through the addition of coagulation agents which reduce the electrostatic charges surrounding colloidal matter

A

Chemical coagulation

104
Q

Chemical coagulants

A

Alum
Copperas
Search in the hb bitch

105
Q

A physico-chemical process used in the removal of finely divided solids, a polyelectrolyte is added to wastewater which can form bridges that will join together the solids

A

Chemical flocculation

106
Q

Common flocculants used

A

Anionic palyacrylamide
Alginates
Sodium alumina the
Sodium silicate

107
Q

Refers to the destruction of pathogenic microorganism for the sole purpose of preventing transmission of disease through water

A

Disinfection

108
Q

Killing all microorganism present in water

A

Sterilization

109
Q

Chlorine is used to disinfect wastewater in either gaseous form or hypochlorite salts

A

Chlorination

110
Q

Achieved by using formation of free radicals as oxidizing agents

A

Ozone toon

111
Q

A physical process that principally involves passing a film of wastewater within close proximity of a uv source

A

Uv radiation

112
Q

The alteration of physical, chemical and biological properties of the atmosphere that is likely to create harmful effects on public health, safety and welfare

A

Air pollution

113
Q

Air pollutants

A 
COx
CH4
NOx
VOC
SOx
PM10
114
Q

Emitted by an identifiable source

A

Primary pollutant

115
Q

Formed by the chemical reactions of the primary pollutants

A

Secondary pollutant

116
Q

Main product of fossil fuel combustion, a major greenhouse gas when it displaces any gem on the air causing suffocation due to binomial

A

Carbon dioxide

117
Q

Product of incomplete combustion, causes anoxic it’s where it reacts with hemoglobin forming carb oxyhemoglobin

A

Carbon monoxide

118
Q

Acid raid precursors

A

Sox

119
Q

Formed mainly during high temperature combustion of fuel in cars, causes reddish brown haze in city air, contributor to the formation of ground level bad ozone

A

Not

120
Q

Artificial gases used as coolants in refrigerators and air conditioners

A

CFCs

121
Q

They are non toxic, nonflammable, no biodegradable, non water soluble that is stable and can reach the stratosphere

A

CFCs

122
Q

Contribute to urban haze, cause visibility reduction

A

Particulate matter

123
Q

The tendency of the atmosphere for resist or enhance vertical motion

A

Atmospheric stability

124
Q

Thermal structure neither enhances or resists mechanical turbulence

A

Neutral stability

125
Q

Mechanical turbulence is enhanced by the thermal structure

A

Unstable or superadiabatic

126
Q

Thermal structure inhibits mechanical turbulence

A

Stable or subadult attic

127
Q

This happens when there is smog or fog

A

Inversion temperature

128
Q

Particulate removal is by gravity; recommended for particulate size in the range of 50 microns or higher

A

Settling chambers

129
Q

Dirty gas is fed periphery into the device. Particulate removal is by centrifugal impact ion on the cyclone wall from where it falls to the bottom

A

Cyclone collector

130
Q

Uses water to effect particulate separation from the gas stream; recommended for particulates of 5 to 20 microns and should have high affinity for water

A

Venturi scrubbers

131
Q

Septa rates the particulates form the main stream by direct interception; filter medium is cloth or acetate membrane filters

A

Bag filters

132
Q

Most efficient method which is recommended for all sizes if particulates especially those below 1 to 10 microns; gas is given an electrical charge as it enters the device

A

Electrostatic precipitators

133
Q

Hierarchy of solid waste management

A 
Prevention
Reduction
Recycling
Treatment
Disposal

Physical and Chemical Principles (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions