Brainscape's Knowledge GenomeTM

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


See full index

Day 1 - Physical and Chemical Principles > Environmental Engineering > Flashcards

Environmental Engineering Flashcards

1
Q

any alteration in the physical, chemical, or biological properties of
the environment (air, water, and land) which adversely affects its
quality and/or aesthetic use

A

Environmental Pollution

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

Describes the chemical, physical, and biological characteristics of
water with respect to its suitability for a particular use

A

Water Quality

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

How many forms of nitrogen are present in wastewater?

A

5 (NH3, NH4+, NO3-, NO2-, and other organic compounds containing N)

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

It is known as the Water Quality Guidelines and General Effluent Standards of 2016

A

DAO No. 2016-2018

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

Classification of Water Bodies: Public Water Supply Class I, intended for drinking, uninhabited watersheds and require only disinfection

A

Class AA

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

Classification of Water Bodies: intended for water supply but requires conventional water treatment processing

A

Class A

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

Classification of Water Bodies: Recreational Water Class I, intended for primary contact recreation

A

Class B

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

Classification of Water Bodies: Recreational Water Class II (indirect contact recreation), fishery waters

A

Class C

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

Classification of Water Bodies: navigable waters

A

Class D

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

Is part of the water supply to the community, industry/manufacturing, agriculture, etc. which has been mixed with suspended or dissolved solid, and usually contains pollutants.

A

Wastewater

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Generally the indication of the age of sewage

A

Color

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

It comes from the septic decomposition of organic wastes and is due to the presence of gases such as amines, ammonia, diamines, etc.

A

Odor

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

Gas responsible for the rotten egg odor of wastewater

A

Hydrogen sulfide

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

The resistance of water to the passage of light through it is a measure of?

A

Turbidity

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

Which of the following apparatus is not used in measuring turbidity?
a. Jackson Turbidimeter
b. Secchi Disk Depth
c. Photoelectric Colorimeter
d. none of these

A

C.

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

It lowers the solubility of oxygen in the water and increases the
the rate at which oxygen-consuming microbes attack organic waste.

A

Temperature

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

Solid residue when water is evaporated at 103 – 105 degrees C.

A

Total Solids

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

The total solids in water are due to the presence of

A

Suspended and dissolving solids

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

Sodium ions contribute to which characteristics of water?

A

Total dissolved solids

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

The actual quantity of free O2 present in water

A

Dissolved oxygen

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

a measure of the amount of O2 needed to oxidize completely an organic matter whose chemical formula is known

A

Theoretical oxygen demand

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

Dissolved oxygen in water is reduced during which season?

A

Summer

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

The color of wastewater containing little or no dissolved oxygen is?

A

Black

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

the measure of the amount of O2 needed by microorganisms to decompose biodegradable organics at a specified time (5 days), temperature (200C) and pH (7).

A

Biological oxygen demand

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
a measure of the amount of O2 needed to oxidize organics using strong oxidizing agents (KMnO4 or K2Cr2O7) in acid media.
Chemical oxygen demand
26
In the determination of BOD, the reaction takes place at what temp?
20 degrees C
27
In the determination of BOD, the reaction takes place in the dark because?
Algae may be present and produce oxygen
28
DOs for initial deficit after mixing with wastewater at 10 degrees C
DOS = 11.33 mg/L
29
DOS at 20 degrees C
9.1
30
A measure of the acidity or alkalinity of water.
pH
31
Cause hardness in water and formation of scales and deposits on pipelines and fittings if used in industry
Calcium and magnesium salts
32
basic components of fertilizer, serves as nutrients for microbial growth in particular algae.
Nitrogen and Phosphorus
33
refers to the heavy metals which are toxic even in small concentrations.
trace metals
34
It is the phenomenon that results in the overabundance of algae growth in bodies of water. It is also the natural process of nutrient enrichment that occurs over time in a body of water.
Eutrophication
35
The measure of the total organic and ammonia nitrogen in the wastewater. It also gives a measure of the availability of nitrogen for building cells.
TKN (Total Kjeldahl Method)
36
Involves the accumulation of trace metals through each species of the food chain
Biomagnification
37
A trace metal that causes Itai-itai diseases is
Cadmium
38
A trace metal which causes the Minimata disease
Mercury
39
the sum of all titratable bases to a pH of approximately 4.5
Alkalinity
40
the sum of all polyvalent cations (in consistent units).
Water hardness
41
Hardness of water is usually expressed in parts per million of
CaCO3
42
Alkalinity formula if pH ranges from 6-8
Alkalinity = [HCO3^-] + [CO3^2-]
43
Alkalinity formula if pH ranges from 7-8.3
approximately equal to [HCO3^-]
44
Concentration (in mg/L as CaCO3) of soft water
less than 17.61
45
Concentration (in mg/L as CaCO3) of lightly hard water
17.61-60
46
Concentration (in mg/L as CaCO3) of moderately hard water
60-120
47
Concentration (in mg/L as CaCO3) of hard water
120-180
48
Concentration (in mg/L as CaCO3) of very hard water
Greater than 180
49
If carbonate hardness is greater than total hardness (CH>TH), then non-carbonate hardness (NCH) is equal to
Zero
50
Solid waste management hierarchy
Reduction > Recycling > Treatment > Disposal
51
Code for PET (polyethylene terephthalate) (ie water bottles, soft plastic jars)
1
52
Code for HDPE (ie milk jugs, shampoo bottles, detergent containers)
2
53
Code for PVC (ie pipes, vinyl, tubing, auto product bottles)
3
54
Code for LDPE (ie laundry baskets, "cellophane" bags, plastic film)
4
55
Code for PP (lol) (polypropylene) (ie yogurt containers, pill bottles, straws)
5
56
Code for PS (polystyrene) (ie styro cups/containers, food packaging)
6
57
RA 8749
Clean Air Act of the Philippines
58
RA 9003
Ecological Solid Waste Management Act
59
RA 6969 nice
Toxic Substances and Hazardous and Nuclear Wastes Act
60
Atmospheric Layer Pneumonic
The Smart Man Takes Elevator
61
The lowest layer of Earth's atmosphere which contains the clouds and the air
Troposphere
62
Type of wastewater treatment that employs physical and chemical treatment methods to remove or reduce a high percentage of suspended solids and toxic materials
Primary Treatment
63
Hard water can be softened by
ion exchange
64
Removal of all settleable particles rendered settleable under the influence of gravity, basically the theory of gravity under the influence of which all particles heavier than water tend to settle down.
Sedimentation
65
In facultative stabilization pond, the sewage is treated by a. aerobical bacteria b. anaerobic bacteria c. algae d. both (a) and (b)
D.
66
Process whereby coarse matter (suspended or floating) of a certain size can be strained out of flowing water with the aid of bars, fine wires or rocks
Screening
67
Water treatment that destroys disease-causing bacteria, nuisance bacteria, parasites, and other organisms and removes soluble iron, manganese and hydrogen sulfide from the water.
Chlorination
68
Code for plastics used for food wrapping, trash bags, grocery bags and baby diapers
4 - LDPE
69
It is the international salute that is currently the primary basis of the Philippines in its latest environmental dispute with Canada.
Basel Convention
70
Protocol that aims to regulate greenhouse emissions of countries
Kyoto Protocol
71
“Smokey Mountain” is a typical example of a facility for solid waste. It is classified as
An open dumping site (illegal)
72
A global treaty that aims to diminish and eventually phase out chlorofluorocarbons
Montreal Protocol
73
A global treaty that aims to protect human health and the environment from persistent pollution
Stockholm Convention
74
Collective term for the initial POPs (Persistent Organic Pollutants) identified by the Stockholm Convention
Dirty Dozens
75
It is an odorless and colorless gas that is lethal to humans with exposure as short as a few minutes to concentrations exceeding 5000 ppm. It reacts with hemoglobin in the blood rendering the latter incapable of carrying oxygen to the body.
Carbon Monoxide
76
Pick out the wrong statement. a. The concentric atmosphere layer just above troposphere is called stratosphere, which is rich in ozone. b. Mesosphere is characterized by very low atmosphere pressure and low temperature. c. Troposphere is a dusty zone containing water vapor and clouds. d. The radio waves used in the long-distance radio communication are reflected to earth by stratosphere.
D.
77
The rate at which temperature in the atmosphere changes with altitude is called
Lapse rate
78
Which biogeochemical cycle has bacteria living in a symbiotic relationship with the roots of legumes?
Nitrogen Cycle
79
By which process is carbon dioxide released from plants back into the atmosphere?
Respiration
80
What acid combination is the dominant component of acid rain?
Nitric acid and sulfuric acid
81
All of the biogeochemical cycles involve the atmosphere as either sink or reservoir except for one. This exception uses the ___ as its sink. A. Lithosphere B. Either A or C C. Hydrosphere D. Neither A nor B
C.
82
The process where decomposers return back the nitrogen to the soils through the remains and wastes of plants and animals.
Ammonification

Day 1 - Physical and Chemical Principles (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions