Showing results for: wastewater aerator Articles
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Performance of mechanical aerator in wastewater treatment with special reference to oxidation ditch: a critical review
Mechanical aerators used in wastewater treatment are the largest energy consumers in biological reactors. Well-known researchers have been working on the oxygen transfer by mechanical aerators in oxidation ditch process and they have successfully enhanced the efficiency of aeration system with considering the factors affecting oxygen transfer such as speed of rotors and geometry of aeration ...
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The ORP and pH profiles during simultaneous nitrification and denitrification of low carbon municipal wastewater
The ORP and pH profiles and the stability of Simultaneous Nitrification and Denitrification (SND) for low carbon municipal wastewater treatment were investigated under the different aeration modes in Sequencing Batch Reactor (SBR). The results showed that the 92% removal efficiency for TN, the smallest average level of ORP and both of the variation of ORP and pH values are achieved in ...
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Performance assessment of a wastewater treatment plant treating weak campus wastewater
A detailed characterisation of the influent and the effluent wastewater for one year period and a performance evaluation was carried out for the wastewater treatment plant of Cumhuriyet University (Sivas, Turkey). The objective of this work was to investigate the performance of different units in overall treatment of the plant and particular attention was given to the performance of the extended ...
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Project - WWTP Cologne-Stammheim, Germany
Plant: wwtp Cologne-Stammheim, Germany Contractor: Gesellschaft für Wassertechnik und Apparatebau GmbH & Co. KG Type of plant: Municipal Wastewater Start-up: 2011/2014 Application: Mixing & Aeration in high loaded aeration step Wastewater with high sand concentration -preventing sand sedimentation Scope of supply: 2 Cyberpitch - Mixers 4 Hyperclassic - Mixers 20 ...
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Wastewater Aeration - Ventura, CA
Ventura Shopping Center Avoids Litigation by Resolving Sewer Odor Problems Ventura, CA The Problem: A new shopping center in Ventura, CA with several major retail stores, was suffering from a sewer odor problem. Hydrogen sulfide odors flooded the entrances of the stores in the shopping center, causing complaints from customers and employees. The local and corporate divisions of these retailers ...
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Alpine resort leads the way in wastewater treatment
One of the world’s most popular ski resorts, Courchevel in the French Alps, has introduced an innovative wastewater treatment system to manage the sharp increase in capacity needed during the winter months. During the winter months, the population of Courchevel triples and the traditional aerated wastewater treatment system at nearby Bozel was finding it difficult to meet demand. The local ...
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Recent Papers on Applied Hydraulics
Reactor hydraulics is one of the key factors for plant performance and plant control. The residence time distribution is a good but limited indicator of reactor hydraulics. A more detailed view is obtained by direct observations within the reactor. Two different techniques (conservative tracer, reactive tracer) are discussed to ...
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Environmental biodegradability of [14C]SWNT by Trametes versicolor and natural microbial cultures found in New Bedford Harbor sediment and aerated wastewater treatment plant sludge
Little is known about environmental biodegradability or biotransformations of single‐walled carbon nanotubes (SWNT). Because of their strong association with aquatic organic matter, detailed knowledge of the ultimate fate and persistence of SWNT requires investigation of possible biotransformations (i.e., biodegradation) in environmental media. In the present study, [14C]SWNT were utilized to ...
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Strathkelvin’s SCO2PE Process
SCO2PE Strathkelvin has implemented a range of innovative services and instruments to the Wastewater Treatment Market. These have been combined together to form the SCO2PE Protocol. This Protocol has enabled Strathkelvin to deliver to each client a site specific assessment, followed by a bespoke solution for a holistic approach to the treatment and aeration energy reduction of Wastewater ...
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Packaged Wastewater Treatment for Guantanamo Bay - Case Study
PROJECT DETAILS LOCATION Naval Station Guantanamo Bay, Cuba CUSTOMER United States Navy SOLUTION Advance Extended Aeration Wastewater Treatment Plant TECHNOLOGIES 300,000 GPD Packaged Plant Featuring Gravity Sand Tertiary Filter System Extended aeration plant designed to treat municipal waste for discharge and for reuse as grey water Background In 2001, with the growing population at ...
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Respirometry study of two different wastewater samples on COD fractioning & biodegradability for a specific activated sludge process and nitrification case study
Preliminary This service was made according to customer order points and indications from Hydrolab Microbiológica (Surcis collaborator) The client wanted Surcis to carry out a study about COD fractioning and nitrification. For this study the client has provided to Surcis the following: Process type: Activated sludge - Extended aeration 2 wastewater samples: the first one is a ...
By SURCIS, S.L.
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SRS Crisafulli Takes Notice of New Technology in Floating Wetlands
SRS Crisafulli Takes Notice of New Technology in Floating Wetlands SRS Crisafulli spotlights an article from the magazine WaterWorld titled "Floating Wetlands Help Boost Nitrogen Removal in Lagoons" by Mark A. Reinsel, Ph.D. Dr. Reinsel is a Professional Engineer who focuses on treating mining and other industrial wastewaters through biological, chemical and physical processes. The article ...
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Modelling of Aeration Systems at Wastewater Treatment Plants
Abstract: A model for the response time of aeration systems at WWTPs is proposed. It includes the delays caused by the air supply system (consisting of blowers, throttles and pipes), the rise time of the air bubbles and all control loops except the master DO controller. Beside a description of the required step-change experiments, different approaches for model calibration are given depending on ...
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Surface Aerators for Wastewater Treatment
As the human population grows and industrial and agricultural activities increase, water quality is becoming one of the most pressing environmental and health issues of the 21st century. Efficient wastewater treatment is one of the main pillars of water safety; efficient water purification methods need to be applied whenever possible to protect biodiversity, ecosystem stability, and sanitary ...
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Case study: Municipal WWTP
OverviewAn urgent improvement of the effluent quality of the old existing WWTP of Yavne was required by the Environmental Ministry of Israel. RequirementEffluent from the Yavne WWTP used to be discharged into a river which flows into the Mediterranean Sea. Years of inadequate treatment in two extensive ponds caused severe pollution. As a result, the Environmental Protection Ministry of Israel ...
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Effects of hydraulic loading rate and aeration mode on nitrogen removal and nitrogen functional gene abundances in subsurface wastewater infiltration systems
Matrix dissolved oxygen, nitrogen removal and nitrogen functional gene abundances in two artificial aeration modes, continuous aeration (CA) and intermittent aeration (IA), in subsurface wastewater infiltration systems (SWISs) under different hydraulic loading rates (HLRs) were investigated. Aeration not only successfully created aerobic conditions at 50 cm depth, but also did not change ...
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Performance comparison between a two-reactor cascade and a single tank in an activated sludge wastewater treatment process
We investigate a model for the treatment of wastewater in the activated sludge process. The process is based on the aeration of wastewater with flocculating biological growth, followed by the separation of treated wastewater from biological growth. The biochemical model consists of two types of bacteria: sludge bacteria and sewage bacteria; and two types of ciliated protozoa: free-swimming ...
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WWTP Yavne, Israel A Case Study
Case Study: Municipal WWTPClient: Municipality of Yavne, IsraelStart Up: September 2005Capacity: 6,000 m3/d Overview An urgent improvement of the effluent quality of the old existing WWTP of Yavne was required by the Environmental Ministry of Israel. Requirement Effluent from the Yavne WWTP used to be discharged into a river which flows into the Mediterranean Sea. Years of inadequate ...
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TORNADO™ Surface Aerators Reduce Odors at Wastewater Reservoir - Case Study
PROJECT DETAILS LOCATION Chicago, Illinois, U.S. CUSTOMER U.S. Army Corps of Engineers, for the Chicago O’Hare Reservoir SOLUTION Aeration of wastewater treatment reservoir TECHNOLOGIES 100-horsepower TORNADO® Surface Self-Aspirating Aerators The Chicago area’s wastewater authority wanted to add an aeration system to its three storm and wastewater reservoirs to avoid ...
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Daf Designs - Three critical dissolved air flotation design parameters for Successful aeration of Wastewater are described.
Today's wastewater managers and technicians routinely encounter a variety of clarification situations. Such encounters may be an opportunity to improve performance of an existing dissolved air flotation (DAF) system or to help in selecting a new unit. Through application of a critical analysis, managers and technicians will find their water clarification results will be improved in the long term. ...
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