INDUSTRIAL WASTEWATER
INDUSTRIAL WASTEWATER EXAM QUESTIONS AND ANSWERS WELL
ILLUSTRATED.
Sources of Wastewater Answer >>>>> 1) Domestic, industrial,
commercial Wastewater
Domestic Waste Answer >>>>> Human Fecal, Laundry and Bath
Residue, Household Cleaners, Excess Food Waste
Commercial Waste Answer >>>>> Domestic waste on a much larger
scale
-Restaurants
-Apartments
-Stadiums
Industrial Waste Answer >>>>> By-products of manufacturing
processes, Cleaning Agents, Commercial Waste
Clean Water Act Answer >>>>> Covers aspects of wastewater
treatment, disposal and monitoring
-Enacted by Congress in 1977
-Last amended in 1987
,INDUSTRIAL WASTEWATER
Environmental Protection Agency Answer >>>>> -Federal agency
created in 1970 to administer and enforce regulations concerning the
environment
-Oversees the authority of and provides guidance to the local state
environmental entities
National Pollutant Discharge Elimination System Answer >>>>> -
Specifies what water quality standards must be met prior to discharge.
-Specifies sampling frequency and type
-May include seasonal limitations
Publicly Owned Treatment Works Answer >>>>> -Owned by the
taxpayers of users of the system by virtue of tie-in fees or use charges
-It includes not only the actual treatment facility, but also the entire
collection system from customer to the discharge point.
Phases of Municipal Wastewater Treatment Answer >>>>> -Preliminary
Treatment
-Primary Treatment
-Secondary Treatment
-Tertiary Treatment
, INDUSTRIAL WASTEWATER
Preliminary Treatment Answer >>>>> -A collection of treatment points
to remove trash and grit
-Depending on the incoming water quality, other processes can also be
used to prepare the wastewater for treatment
--Chemical Pre-treatment
--Re-aeration
Common Preliminary Processes Answer >>>>> -Bar Racks
-Bar Screens
-Fine Screens
-Grit Removal Devices
Primary Treatment Answer >>>>> -Essentially, this is only
sedimentation
-It is designed to remove floatable solids and settle able solids
-The solids remove in this process are biologically active and require
additional treatment
-The solids removed are referred to as primary solids
Secondary Treatment Answer >>>>> -After floatable and settle able
solids have been removed, colloidal and dissolved solids remain
-Secondary treatment is the phase of treatment that is a biological
process
INDUSTRIAL WASTEWATER EXAM QUESTIONS AND ANSWERS WELL
ILLUSTRATED.
Sources of Wastewater Answer >>>>> 1) Domestic, industrial,
commercial Wastewater
Domestic Waste Answer >>>>> Human Fecal, Laundry and Bath
Residue, Household Cleaners, Excess Food Waste
Commercial Waste Answer >>>>> Domestic waste on a much larger
scale
-Restaurants
-Apartments
-Stadiums
Industrial Waste Answer >>>>> By-products of manufacturing
processes, Cleaning Agents, Commercial Waste
Clean Water Act Answer >>>>> Covers aspects of wastewater
treatment, disposal and monitoring
-Enacted by Congress in 1977
-Last amended in 1987
,INDUSTRIAL WASTEWATER
Environmental Protection Agency Answer >>>>> -Federal agency
created in 1970 to administer and enforce regulations concerning the
environment
-Oversees the authority of and provides guidance to the local state
environmental entities
National Pollutant Discharge Elimination System Answer >>>>> -
Specifies what water quality standards must be met prior to discharge.
-Specifies sampling frequency and type
-May include seasonal limitations
Publicly Owned Treatment Works Answer >>>>> -Owned by the
taxpayers of users of the system by virtue of tie-in fees or use charges
-It includes not only the actual treatment facility, but also the entire
collection system from customer to the discharge point.
Phases of Municipal Wastewater Treatment Answer >>>>> -Preliminary
Treatment
-Primary Treatment
-Secondary Treatment
-Tertiary Treatment
, INDUSTRIAL WASTEWATER
Preliminary Treatment Answer >>>>> -A collection of treatment points
to remove trash and grit
-Depending on the incoming water quality, other processes can also be
used to prepare the wastewater for treatment
--Chemical Pre-treatment
--Re-aeration
Common Preliminary Processes Answer >>>>> -Bar Racks
-Bar Screens
-Fine Screens
-Grit Removal Devices
Primary Treatment Answer >>>>> -Essentially, this is only
sedimentation
-It is designed to remove floatable solids and settle able solids
-The solids remove in this process are biologically active and require
additional treatment
-The solids removed are referred to as primary solids
Secondary Treatment Answer >>>>> -After floatable and settle able
solids have been removed, colloidal and dissolved solids remain
-Secondary treatment is the phase of treatment that is a biological
process
