phosphorus treatment Articles
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IPEX Double Containment PVC System Protects Chemical Lines at North Toronto Wastewater Treatment Plant Case Study
Originally commissioned in 1929, the North Toronto Wastewater Treatment Plant is one of four wastewater treatment facilities operated by the City of Toronto. Located in the Don Valley, the plant currently serves a population of about 55,000. The facility operates at a rate of about 7.5 million gallons per day (mgd) with major treatment processes that include screening and grit removal, primary ...
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The revival of tertiary continuous filters
Tightening ef uent consents due to river water quality drivers require further investment for improved removal of nitrogen and phosphorus from Wastewater Treatment Plants (WwTP). As a result, tertiary treatment processes have become increasingly important. This has led to a need to gain a better understanding of the process and mechanics of tertiary removal systems in order to remain both ...
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Study on Fully Coupled Activated Sludge Model No. 1 (FCASM1) for wastewater treatment biological processes
Nowadays many types of model based on the Activated Sludge Models (ASMs) have been developed. Most of them supposed that all the substrate removal processes are independent. Based on the mechanism of the interaction among microorganisms and considering the interaction among the processes of organisms oxidation, nitrifying, denitrifying and biological phosphorus removal, Fully Coupled Activated ...
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Experiences on dual media filtration of WWTP effluent
This research is legislation driven by the European Water Framework Directive (WFD) and the Dutch Fourth Memorandum on Water Management. The objective of this research is to achieve the removal of total nitrogen and total phosphorus by Dual Media Filtration. The target value during this research for total nitrogen is 2.2 mg/L and for total phosphorus 0.15 mg/L. The results show that for NOx-N ...
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Phosphorus recovery from sewage sludge using the Aquacritox supercritical water oxidation process
Abstract Every person produces approximately 1.2kg/annum of phosphorous. This is typically conveyed to a wastewater treatment plant. In the United Kingdom, the annual phosphorus load from human sources which is present in wastewater is therefore approximately 72,000 tonnes. This would have a value in the region of US$168M per annum based on current market prices. This paper examines how the ...
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Advanced treatment of WWTP effluent with filtration leading to a pretreatment technique for membrane filtration
In 2000 the European Union introduced the Water Framework Directive (WFD). The aim of the WFD is having an ecological and chemical balance for all surface waters in Europe in 2015. The European Commission identified 33 priority substances and their maximum allowable concentrations, FHI-values (Fraunhofer Institute), which are specified in the Annex of the WFD. The objective of this research is to ...
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Bio-Organic Flocculant Treatment for Phosphorus Removal: A Zeoturb - Case Study
Problems with Phosphorus in Wastewater Regulating the discharge of phosphorus from industrial and municipal wastewater treatment plants is a primary factor in averting eutrophication of surface water sources. Phosphorus is one of the key nutrients that contribute to this process in both lakes and natural waters. Its existence has caused major water quality issues such as diminished recreational ...
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Mixing Energy Savings, Enhanced Phosphorus Removal - Wastewater Treatment Plant USMIWW-LOC759.001 (ID209) - Case Study
Topics: wastewater, energy savings, sludge reduction, facultative, partial mix Overview: The municipal WWTP consists of three cells at 32.4 surface acres. Cell one is controlled discharge, partial mix, and 7.23 surface acres with an operating depth of 6.0 ft. Cell two is controlled discharge, facultative, 7.5 surface acres with an operating depth of 10.0 ft. Cell three is controlled discharge, ...
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Phosphorus runoff from wastewater treatment biosolids and poultry litter applied to agricultural soils
Received for publication March 19, 2009. Differences in the properties of organic phosphorus (P) sources, particularly those that undergo treatment to reduce soluble P, can affect soil P solubility and P transport in surface runoff. This 2-yr field study investigated soil P solubility and runoff P losses from two agricultural soils in the Mid-Atlantic region after land application of biosolids ...
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Celdar Technology - Metal Washing Wastewater Treatment - Case Study
To design a wastewater treatment plant, the customer asked us to evaluate the ELECTROCOAGULATION SYSTEM for the removal of typical pollutant in such wastewater and to be able to drain the treated water into the sewer system. Another option required was the ZERO LIQUID DISCHARGE and therefore the possibility of reusing the treated water with the least amount of consumption possible. This option is ...
By Intecna srl
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Celdar® Technology Phosphorus removal – Rice Production - Case Study
To solve the problem of big sludge formation in wastewater treatment plant, the customer asked us to evaluate the ELECTROCOAGULATION SYSTEM for the removal of Phosphorus and to be able to drain the treated water into the sewer system. Another option required was the ZERO LIQUID DISCHARGE and therefore the possibility of reusing the treated water with the least amount of consumption ...
By Intecna srl
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Project Update - Keeping Houseboat Season Afloat
Sicamous is situated on the beautiful Shuswap Lake in the interior of British Columbia and is known as the “Houseboat Capital of Canada”. Over the years, the increase in houseboat activity on the lake has caused increased influent loading conditions (TSS, BOD5, and Total Phosphorus (TP)) at the local wastewater treatment plant. Boats unload their sewage into the collection ...
By Flottweg SE
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Towards a complete recycling of phosphorus in wastewater treatment – options in Germany
Global reserves of mineral phosphorus are finite and the recycling of phosphorus from wastewater, a significant sink for phosphorus, can contribute to a more sustainable use. In Germany, Switzerland, and the Netherlands, an increasing percentage of municipal sewage sludge is incinerated and the contained phosphorus is lost. This paper reviews current technologies and shows that a complete ...
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A novel control strategy for efficient biological phosphorus removal with carbon-limited wastewaters
This work shows the development and the in silico evaluation of a novel control strategy aiming at successful biological phosphorus removal in a wastewater treatment plant operating in an A2/O configuration with carbon-limited influent. The principle of this novel approach is that the phosphorus in the effluent can be controlled with the nitrate setpoint in the anoxic reactor as manipulated ...
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Nutrient Control Design Manual
The purpose of this EPA design manual is to provide updated, state‐of‐the‐technology design guidance on nitrogen and phosphorus control at municipal Wastewater Treatment Plants (WWTPs). Similar to previous EPA manuals, this manual contains extensive information on the principles of biological nutrient removal and chemical phosphorus removal to serve as the basis for design. A ...
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Recycling of phosphorus in urban Sweden: a historical overview to guide a strategy for the future
Sustainable sanitation and food security have been issues in all human history although named differently. This study describes the evolution of sanitation arrangements in the Swedish town Linköping for the period 1870–2000. The flow of phosphorus from food consumption is estimated for the period and its output is divided into gainful reuse in agriculture and energy production and (harmful) ...
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A case study for upgrading existing carousel process to achieve low effluent phosphorus discharges
In this study, Al–Qateef wastewater treatment plant was selected as a case representing the upgrade of carrousel technology with tertiary treatment. This technology is applied in many cities in the Eastern province, Kingdom of Saudi Arabia. The use of chemical treatment alternative for phosphorous removal was evaluated versus the newly implemented tertiary treatment unit. The study showed that ...
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Effects of injection of acetic acid and propionic acid for total phosphorus removal at high temperature in enhanced biological phosphorus removal process
In summer, wastewater treatment plant total phosphorus (TP) removal efficiency is low in South Korea. The reason is because of high temperatures or significant fluctuation of inflow characteristics caused by frequent rainfall. Hence, this study tried to raise TP removal efficiency by injecting fixed external carbon sources in real sewage. Polyphosphate accumulating organisms (PAOs) and glycogen ...
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Aerobic biological treatment of thermophilically digested sludge
Aerobic biological treatment of digested sludge was studied in a continuously operated laboratory set-up. An aerated reactor was filled with thermophilically digested sludge from the Moscow wastewater treatment plant and inoculated with special activated sludge. It was then operated at the chemostat mode at different flow rates. Processes of nitrification and denitrification, as well as ...
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Wastewater Treatment Technologies – Sequencing Batch Reactor (SBR)
There are a number of wastewater treatment technologies available including physicochemical, biological and advanced oxidation processes. We’re going to discuss a number of the options available over the coming weeks starting with a brief overview of the Sequencing Batch Reactor (SBR) process. The conventional Sequencing Batch Reactor (SBR) process has a unique operation wherein the ...
By Coftec
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