Sewage sludge treatment describes the processes used to manage and dispose of sewage sludge produced during sewage treatment. Sludge is mostly water with lesser amounts of solid material removed from liquid sewage. Primary sludge includes settleable solids removed during primary treatment in primary clarifiers. Secondary sludge separated in secondary clarifiers includes treated sewage sludge from secondary treatmentbioreactors.
Sludge treatment is focused on reducing sludge weight and volume to reduce disposal costs, and on reducing potential health risks of disposal options. Water removal is the primary means of weight and volume reduction, while pathogen destruction is frequently accomplished through heating during thermophilic digestion, composting, or incineration. The choice of a sludge treatment method depends on the volume of sludge generated, and comparison of treatment costs required for available disposal options. Air-drying and composting may be attractive to rural communities, while limited land availability may make aerobic digestion and mechanical dewatering preferable for cities, and economies of scale may encourage energy recovery alternatives in metropolitan areas.
Sewage sludge refers to the residual, semi-solid material that is produced as a by-product during sewage treatment of industrial or municipal wastewater. The term septage is also referring to sludge from simple wastewater treatment but is connected to simple on-site sanitation systems, such as septic tanks.
When fresh sewage or wastewater enters a primary settlingtank, approximately 50% of the suspended solid matter will settle out in an hour and a half. This collection of solids is known as raw sludge or primary solids and is said to be "fresh" before anaerobic processes become active. The sludge will become putrescent in a short time once anaerobic bacteria take over, and must be removed from the sedimentation tank before this happens.
This is accomplished in one of two ways. In an Imhoff tank, fresh sludge is passed through a slot to the lower story or digestion chamber where it is decomposed by anaerobic bacteria, resulting in liquefaction and reduced volume of the sludge. After digesting for an extended period, the result is called "digested" sludge and may be disposed of by drying and then landfilling. More commonly with domestic sewage, the fresh sludge is continuously extracted from the tank mechanically and passed to separate sludge digestion tanks that operate at higher temperatures than the lower story of the Imhoff tank and, as a result, digest much more rapidly and efficiently.
The cycle of transformation, elimination and recovery of sludge, from wastewater treatment, explained in 3’20’’. https://activities.veolia.com : Discover our other solutions for municipalities and industries.
--------------------------
www.veolia.com
--------------------------
2021 - Veolia communication department
Script & Production: Benoit de La Rochefordière
Motion graphics : François Berthemet
published: 19 Jul 2021
How do wastewater treatment plants work?
Wastewater treatment involves the removal of impurities from wastewater, or sewerage, before they reach aquifers or natural water bodies, such as lakes, rivers, and oceans.
published: 17 May 2020
What is sludge processing? An introduction to sludge treatment
An introduction to sludge treatment − Simon Judd gives a brief overview to sludge processing in the context of wastewater treatment.
published: 07 Jul 2020
WasteWater Treatment Plant • From Beginning to End
published: 04 Aug 2021
STP SLUDGE TREATMENT -RAPID COMPOSTING
published: 14 Apr 2022
Automatic Sludge Dewatering Screw Press Machine for Sewage Treatment Water Treatment Machinery
Stacked-screw Sludge Dewatering which uses the screw extrusion priciple is a new type of solide-liquid separation device. It reaches the goal of extrusion dewatering sludge by the powerful extrusion pressure of changing the screw diameter and distance along with the tiny spacing between moveable and fixed annular plates.
★The main body of screw filter press is made of multiple fixedannular plates and moveable annular plates with the screw shaftrunning through it. ★The front part is concentrating section and the ending part isdewatering section. It can concentrate and dewater sludge inone chamber. ★Sludge will be transported to the dewatering part after beingconcentrated in the thickening section. ★ln the advancing process, great pressure has been producedbecause of the gradually decreasing...
published: 25 Nov 2024
Primary treatment of sewage and anaerobic treatment of sludge
During the primary treatment of sewage, sludge is separated from the sewage before it goes to secondary treatment. This sludge is then treated in an anaerobic environment, where there is no free oxygen.
In this anaerobic environment, micro-organisms such as bacteria break down organic materials in the sludge. This creates biogas including methane and carbon dioxide. At both the Eastern Treatment Plant (ETP) and the Western Treatment Plant (WTP), the biogas is captured to produce electricity for use on the site. By capturing these gases, we reduce the greenhouse gases and odours released into our air.
At the ETP, the sludge is anaerobically treated in large tanks called digesters. At the WTP, this treatment occurs in large covered lagoons.
published: 26 May 2016
Hydroman™ Submersible Sludge Sewage Pump for WWTP Wastewater Treatment
Hydroman™ Submersible sewage sludge pump is used for civil and industrial non aggressive waste water, municipal works, industrial buildings, hotels, hospitals, civil air defense, mines etc., suitable for drain off the sewage, waste water, rainwater and living water in cities containing solid grains and various long fabrics. Especially effective in returning activated sludge in wastewater treatment works, temporary sewage bypass pumping and emptying polluted excavations or tanks, these units are robust in design and capable of delivering months of continuous operation with no maintenance requirements.
Hydroman has the proven experience and submersible pumps to provide reliable and efficient solutions for handling sludge,so we can offer a complete range of high-quality submersible sewage slu...
Back in Aug., the City of Cedar Rapids approved an almost $350 million project to replace equipment from when the plant was built back in 1980.
https://www.kcrg.com/2024/12/06/wastewater-treatment-plant-project-continues-construction-tv9-tours-facility/
For more Local News from KCRG: https://www.kcrg.com/
For more YouTube Content: https://www.youtube.com/channel/UCVg0ul_tJm6uNvTmZxEtXJA
published: 06 Dec 2024
Secondary treatment of sewage
During the secondary treatment of sewage, bacteria are used to reduce nutrients in the wastewater.
This occurs in the activated sludge plant, where different types of bacteria exist in aerobic (with added oxygen) and anoxic (without added oxygen) environments, which are side by side. These micro-organisms break down organic materials and remove ammonia at both the Eastern Treatment Plant and the Western Treatment Plant. Ammonia is first converted to nitrates and finally to nitrogen gas that is released into our air.
The water then passes through sedimentation tanks where more sludge is removed and treated secondary effluent is produced.
The cycle of transformation, elimination and recovery of sludge, from wastewater treatment, explained in 3’20’’. https://activities.veolia.com : Discover our ot...
The cycle of transformation, elimination and recovery of sludge, from wastewater treatment, explained in 3’20’’. https://activities.veolia.com : Discover our other solutions for municipalities and industries.
--------------------------
www.veolia.com
--------------------------
2021 - Veolia communication department
Script & Production: Benoit de La Rochefordière
Motion graphics : François Berthemet
The cycle of transformation, elimination and recovery of sludge, from wastewater treatment, explained in 3’20’’. https://activities.veolia.com : Discover our other solutions for municipalities and industries.
--------------------------
www.veolia.com
--------------------------
2021 - Veolia communication department
Script & Production: Benoit de La Rochefordière
Motion graphics : François Berthemet
Wastewater treatment involves the removal of impurities from wastewater, or sewerage, before they reach aquifers or natural water bodies, such as lakes, rivers,...
Wastewater treatment involves the removal of impurities from wastewater, or sewerage, before they reach aquifers or natural water bodies, such as lakes, rivers, and oceans.
Wastewater treatment involves the removal of impurities from wastewater, or sewerage, before they reach aquifers or natural water bodies, such as lakes, rivers, and oceans.
Stacked-screw Sludge Dewatering which uses the screw extrusion priciple is a new type of solide-liquid separation device. It reaches the goal of extrusion dewat...
Stacked-screw Sludge Dewatering which uses the screw extrusion priciple is a new type of solide-liquid separation device. It reaches the goal of extrusion dewatering sludge by the powerful extrusion pressure of changing the screw diameter and distance along with the tiny spacing between moveable and fixed annular plates.
★The main body of screw filter press is made of multiple fixedannular plates and moveable annular plates with the screw shaftrunning through it. ★The front part is concentrating section and the ending part isdewatering section. It can concentrate and dewater sludge inone chamber. ★Sludge will be transported to the dewatering part after beingconcentrated in the thickening section. ★ln the advancing process, great pressure has been producedbecause of the gradually decreasing filter spacing and screwdistance with the block of the back platen. Then the volumedecrease continuously, and the purpose of fully dewatering willbe achieved.
Stacked-screw Sludge Dewatering which uses the screw extrusion priciple is a new type of solide-liquid separation device. It reaches the goal of extrusion dewatering sludge by the powerful extrusion pressure of changing the screw diameter and distance along with the tiny spacing between moveable and fixed annular plates.
★The main body of screw filter press is made of multiple fixedannular plates and moveable annular plates with the screw shaftrunning through it. ★The front part is concentrating section and the ending part isdewatering section. It can concentrate and dewater sludge inone chamber. ★Sludge will be transported to the dewatering part after beingconcentrated in the thickening section. ★ln the advancing process, great pressure has been producedbecause of the gradually decreasing filter spacing and screwdistance with the block of the back platen. Then the volumedecrease continuously, and the purpose of fully dewatering willbe achieved.
During the primary treatment of sewage, sludge is separated from the sewage before it goes to secondary treatment. This sludge is then treated in an anaerobic e...
During the primary treatment of sewage, sludge is separated from the sewage before it goes to secondary treatment. This sludge is then treated in an anaerobic environment, where there is no free oxygen.
In this anaerobic environment, micro-organisms such as bacteria break down organic materials in the sludge. This creates biogas including methane and carbon dioxide. At both the Eastern Treatment Plant (ETP) and the Western Treatment Plant (WTP), the biogas is captured to produce electricity for use on the site. By capturing these gases, we reduce the greenhouse gases and odours released into our air.
At the ETP, the sludge is anaerobically treated in large tanks called digesters. At the WTP, this treatment occurs in large covered lagoons.
During the primary treatment of sewage, sludge is separated from the sewage before it goes to secondary treatment. This sludge is then treated in an anaerobic environment, where there is no free oxygen.
In this anaerobic environment, micro-organisms such as bacteria break down organic materials in the sludge. This creates biogas including methane and carbon dioxide. At both the Eastern Treatment Plant (ETP) and the Western Treatment Plant (WTP), the biogas is captured to produce electricity for use on the site. By capturing these gases, we reduce the greenhouse gases and odours released into our air.
At the ETP, the sludge is anaerobically treated in large tanks called digesters. At the WTP, this treatment occurs in large covered lagoons.
Hydroman™ Submersible sewage sludge pump is used for civil and industrial non aggressive waste water, municipal works, industrial buildings, hotels, hospitals, ...
Hydroman™ Submersible sewage sludge pump is used for civil and industrial non aggressive waste water, municipal works, industrial buildings, hotels, hospitals, civil air defense, mines etc., suitable for drain off the sewage, waste water, rainwater and living water in cities containing solid grains and various long fabrics. Especially effective in returning activated sludge in wastewater treatment works, temporary sewage bypass pumping and emptying polluted excavations or tanks, these units are robust in design and capable of delivering months of continuous operation with no maintenance requirements.
Hydroman has the proven experience and submersible pumps to provide reliable and efficient solutions for handling sludge,so we can offer a complete range of high-quality submersible sewage sludge pumps made for dewatering, moving mud, clay, sludge, light slurry, tank clean-outs, trench & pond cleaning, and mining applications.
Email: [email protected]
Web: www.hydroman.cn | www.tobeepump.com | www.slurrypumpsupply.com
Hydroman™ Submersible sewage sludge pump is used for civil and industrial non aggressive waste water, municipal works, industrial buildings, hotels, hospitals, civil air defense, mines etc., suitable for drain off the sewage, waste water, rainwater and living water in cities containing solid grains and various long fabrics. Especially effective in returning activated sludge in wastewater treatment works, temporary sewage bypass pumping and emptying polluted excavations or tanks, these units are robust in design and capable of delivering months of continuous operation with no maintenance requirements.
Hydroman has the proven experience and submersible pumps to provide reliable and efficient solutions for handling sludge,so we can offer a complete range of high-quality submersible sewage sludge pumps made for dewatering, moving mud, clay, sludge, light slurry, tank clean-outs, trench & pond cleaning, and mining applications.
Email: [email protected]
Web: www.hydroman.cn | www.tobeepump.com | www.slurrypumpsupply.com
Back in Aug., the City of Cedar Rapids approved an almost $350 million project to replace equipment from when the plant was built back in 1980.
https://www.kc...
Back in Aug., the City of Cedar Rapids approved an almost $350 million project to replace equipment from when the plant was built back in 1980.
https://www.kcrg.com/2024/12/06/wastewater-treatment-plant-project-continues-construction-tv9-tours-facility/
For more Local News from KCRG: https://www.kcrg.com/
For more YouTube Content: https://www.youtube.com/channel/UCVg0ul_tJm6uNvTmZxEtXJA
Back in Aug., the City of Cedar Rapids approved an almost $350 million project to replace equipment from when the plant was built back in 1980.
https://www.kcrg.com/2024/12/06/wastewater-treatment-plant-project-continues-construction-tv9-tours-facility/
For more Local News from KCRG: https://www.kcrg.com/
For more YouTube Content: https://www.youtube.com/channel/UCVg0ul_tJm6uNvTmZxEtXJA
During the secondary treatment of sewage, bacteria are used to reduce nutrients in the wastewater.
This occurs in the activated sludge plant, where different t...
During the secondary treatment of sewage, bacteria are used to reduce nutrients in the wastewater.
This occurs in the activated sludge plant, where different types of bacteria exist in aerobic (with added oxygen) and anoxic (without added oxygen) environments, which are side by side. These micro-organisms break down organic materials and remove ammonia at both the Eastern Treatment Plant and the Western Treatment Plant. Ammonia is first converted to nitrates and finally to nitrogen gas that is released into our air.
The water then passes through sedimentation tanks where more sludge is removed and treated secondary effluent is produced.
During the secondary treatment of sewage, bacteria are used to reduce nutrients in the wastewater.
This occurs in the activated sludge plant, where different types of bacteria exist in aerobic (with added oxygen) and anoxic (without added oxygen) environments, which are side by side. These micro-organisms break down organic materials and remove ammonia at both the Eastern Treatment Plant and the Western Treatment Plant. Ammonia is first converted to nitrates and finally to nitrogen gas that is released into our air.
The water then passes through sedimentation tanks where more sludge is removed and treated secondary effluent is produced.
The cycle of transformation, elimination and recovery of sludge, from wastewater treatment, explained in 3’20’’. https://activities.veolia.com : Discover our other solutions for municipalities and industries.
--------------------------
www.veolia.com
--------------------------
2021 - Veolia communication department
Script & Production: Benoit de La Rochefordière
Motion graphics : François Berthemet
Wastewater treatment involves the removal of impurities from wastewater, or sewerage, before they reach aquifers or natural water bodies, such as lakes, rivers, and oceans.
Stacked-screw Sludge Dewatering which uses the screw extrusion priciple is a new type of solide-liquid separation device. It reaches the goal of extrusion dewatering sludge by the powerful extrusion pressure of changing the screw diameter and distance along with the tiny spacing between moveable and fixed annular plates.
★The main body of screw filter press is made of multiple fixedannular plates and moveable annular plates with the screw shaftrunning through it. ★The front part is concentrating section and the ending part isdewatering section. It can concentrate and dewater sludge inone chamber. ★Sludge will be transported to the dewatering part after beingconcentrated in the thickening section. ★ln the advancing process, great pressure has been producedbecause of the gradually decreasing filter spacing and screwdistance with the block of the back platen. Then the volumedecrease continuously, and the purpose of fully dewatering willbe achieved.
During the primary treatment of sewage, sludge is separated from the sewage before it goes to secondary treatment. This sludge is then treated in an anaerobic environment, where there is no free oxygen.
In this anaerobic environment, micro-organisms such as bacteria break down organic materials in the sludge. This creates biogas including methane and carbon dioxide. At both the Eastern Treatment Plant (ETP) and the Western Treatment Plant (WTP), the biogas is captured to produce electricity for use on the site. By capturing these gases, we reduce the greenhouse gases and odours released into our air.
At the ETP, the sludge is anaerobically treated in large tanks called digesters. At the WTP, this treatment occurs in large covered lagoons.
Hydroman™ Submersible sewage sludge pump is used for civil and industrial non aggressive waste water, municipal works, industrial buildings, hotels, hospitals, civil air defense, mines etc., suitable for drain off the sewage, waste water, rainwater and living water in cities containing solid grains and various long fabrics. Especially effective in returning activated sludge in wastewater treatment works, temporary sewage bypass pumping and emptying polluted excavations or tanks, these units are robust in design and capable of delivering months of continuous operation with no maintenance requirements.
Hydroman has the proven experience and submersible pumps to provide reliable and efficient solutions for handling sludge,so we can offer a complete range of high-quality submersible sewage sludge pumps made for dewatering, moving mud, clay, sludge, light slurry, tank clean-outs, trench & pond cleaning, and mining applications.
Email: [email protected]
Web: www.hydroman.cn | www.tobeepump.com | www.slurrypumpsupply.com
Back in Aug., the City of Cedar Rapids approved an almost $350 million project to replace equipment from when the plant was built back in 1980.
https://www.kcrg.com/2024/12/06/wastewater-treatment-plant-project-continues-construction-tv9-tours-facility/
For more Local News from KCRG: https://www.kcrg.com/
For more YouTube Content: https://www.youtube.com/channel/UCVg0ul_tJm6uNvTmZxEtXJA
During the secondary treatment of sewage, bacteria are used to reduce nutrients in the wastewater.
This occurs in the activated sludge plant, where different types of bacteria exist in aerobic (with added oxygen) and anoxic (without added oxygen) environments, which are side by side. These micro-organisms break down organic materials and remove ammonia at both the Eastern Treatment Plant and the Western Treatment Plant. Ammonia is first converted to nitrates and finally to nitrogen gas that is released into our air.
The water then passes through sedimentation tanks where more sludge is removed and treated secondary effluent is produced.
Sewage sludge treatment describes the processes used to manage and dispose of sewage sludge produced during sewage treatment. Sludge is mostly water with lesser amounts of solid material removed from liquid sewage. Primary sludge includes settleable solids removed during primary treatment in primary clarifiers. Secondary sludge separated in secondary clarifiers includes treated sewage sludge from secondary treatmentbioreactors.
Sludge treatment is focused on reducing sludge weight and volume to reduce disposal costs, and on reducing potential health risks of disposal options. Water removal is the primary means of weight and volume reduction, while pathogen destruction is frequently accomplished through heating during thermophilic digestion, composting, or incineration. The choice of a sludge treatment method depends on the volume of sludge generated, and comparison of treatment costs required for available disposal options. Air-drying and composting may be attractive to rural communities, while limited land availability may make aerobic digestion and mechanical dewatering preferable for cities, and economies of scale may encourage energy recovery alternatives in metropolitan areas.