PMT 108 Principals of Water V2 Unit 5
WITH 103 Complete Solutions 100 %
rated.
PMT 108 Principals of Water V2 Unit 5
WITH 103 Complete Solutions 100 %
rated.
Raw Sludge - ANSWER Sludge obtained from plain sedimentation tanks is essentially the settleable solids
in the raw sewage, can become septic and cause offensive odors.
Stabilization - ANSWER The use of a treatment process to render domestic wastewater residuals less
odorous or putrescible and to reduce the pathogen content.
Sludge - ANSWER Refers for the residual, semi-solid material left from industrial wastewater or sewage
treatment process. This term is not interchangeable with biosolids
Thickening - ANSWER An economically effective process to increase the sludge's concentration and
decrease the sludge's volume by removing some free water to the extent where the sludge remains in
the fluid state
Dewatering - ANSWER Characterized as the process of natural or mechanical removal of water from
sludge during which sludge is losing its fluidity, becomes a damp solid and can be transported in bulk
Biosolids - ANSWER Nutrient rich organic materials derived from wastewater solids that have been
stabilized through processing and meets U.S. EPA or other applicable criteria for beneficial use
Sludge Treatment - ANSWER Primary treatment of domestic wastewater which creates the sludge.
Contains approximately 65% organic material.
Secondary treatment sludge contains about 90% organic material.
, PMT 108 Principals of Water V2 Unit 5
WITH 103 Complete Solutions 100 %
rated.
Digestion - ANSWER The process by which the solids generate in the primary and secondary
sedimentation basins are stabilized and dewatered.
Best tang 85-95°F.
Sludge Digesters (Sludge Stabilization) - ANSWER Orgánica are concentrated in the sludge and stabilized
under aerobic or anaerobic conditions.
Aerobic Digestion - ANSWER Biological oxidation of organic sludge under aerobic conditions
Anaerobic Digestion - ANSWER Biochemical breakdown of organic solids in the absence of free oxygen.
Elutriation - ANSWER Sludge is washed with water or plant's effluent and chemicals to reduce alkalinity.
Chemical Coagulation - ANSWER Are added to en chance the release of water from the solids during the
next step (dewatering).
Sludge Dewatering - ANSWER Reduces the moisture content of the sludge so that it can easily be
disposed of by landfill, incineration, heat drying, composting, or other means.
Belt Press Filtration - ANSWER Employ single or double moving belts to continuously dewater sludge
through one or more stages of dewatering.
Sludge Drying Beds - ANSWER Rely on drainage and evaporation to effect moisture reduction.
Vacuum Filtration - ANSWER Reduces sludge moisture content by applying a vacuum through a sludge
layer, using various equipment configurations.
Centrifugation - ANSWER Process that uses the force developed by fast rotation of a cylindrical drum or
bowl to separate the sludge solids from the liquid.
WITH 103 Complete Solutions 100 %
rated.
PMT 108 Principals of Water V2 Unit 5
WITH 103 Complete Solutions 100 %
rated.
Raw Sludge - ANSWER Sludge obtained from plain sedimentation tanks is essentially the settleable solids
in the raw sewage, can become septic and cause offensive odors.
Stabilization - ANSWER The use of a treatment process to render domestic wastewater residuals less
odorous or putrescible and to reduce the pathogen content.
Sludge - ANSWER Refers for the residual, semi-solid material left from industrial wastewater or sewage
treatment process. This term is not interchangeable with biosolids
Thickening - ANSWER An economically effective process to increase the sludge's concentration and
decrease the sludge's volume by removing some free water to the extent where the sludge remains in
the fluid state
Dewatering - ANSWER Characterized as the process of natural or mechanical removal of water from
sludge during which sludge is losing its fluidity, becomes a damp solid and can be transported in bulk
Biosolids - ANSWER Nutrient rich organic materials derived from wastewater solids that have been
stabilized through processing and meets U.S. EPA or other applicable criteria for beneficial use
Sludge Treatment - ANSWER Primary treatment of domestic wastewater which creates the sludge.
Contains approximately 65% organic material.
Secondary treatment sludge contains about 90% organic material.
, PMT 108 Principals of Water V2 Unit 5
WITH 103 Complete Solutions 100 %
rated.
Digestion - ANSWER The process by which the solids generate in the primary and secondary
sedimentation basins are stabilized and dewatered.
Best tang 85-95°F.
Sludge Digesters (Sludge Stabilization) - ANSWER Orgánica are concentrated in the sludge and stabilized
under aerobic or anaerobic conditions.
Aerobic Digestion - ANSWER Biological oxidation of organic sludge under aerobic conditions
Anaerobic Digestion - ANSWER Biochemical breakdown of organic solids in the absence of free oxygen.
Elutriation - ANSWER Sludge is washed with water or plant's effluent and chemicals to reduce alkalinity.
Chemical Coagulation - ANSWER Are added to en chance the release of water from the solids during the
next step (dewatering).
Sludge Dewatering - ANSWER Reduces the moisture content of the sludge so that it can easily be
disposed of by landfill, incineration, heat drying, composting, or other means.
Belt Press Filtration - ANSWER Employ single or double moving belts to continuously dewater sludge
through one or more stages of dewatering.
Sludge Drying Beds - ANSWER Rely on drainage and evaporation to effect moisture reduction.
Vacuum Filtration - ANSWER Reduces sludge moisture content by applying a vacuum through a sludge
layer, using various equipment configurations.
Centrifugation - ANSWER Process that uses the force developed by fast rotation of a cylindrical drum or
bowl to separate the sludge solids from the liquid.
