phosphorus discharge Articles
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Treatability and fate of various phosphorus fractions in different wastewater treatment processes
The increasingly more stringent phosphorus (P) discharge limits, which are below the concentrations reliably achievable with currently available technologies, demand for better understanding of phosphorus removal mechanisms. This study investigated the compositional fractions of phosphorus (P) in various effluents as well as the efficacy of different levels of treatment processes for removing ...
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Case study - Upper Uvdal wastewater treatment plant - Filter bed
The plant is designed as a traditional chemical and biological treatment plant, as a polishing step the effluent is going thru a filter bed with Filtralite before it is discharged into a small creek. The filter bed treatment plant is built with Filtralite P in Nore and Uvdal municipal in Norway. Uvdal ski resort, some houses and several hundred holiday homes are connected to the treatment plant. ...
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Simultaneous precipitation of phosphorus in a kraft pulp mill wastewater treatment plant
Simultaneous precipitation (SP) using iron sulfates in the secondary treatment of elemental chlorine-free (ECF) kraft pulp mill wastewater was studied. In short-term pilot plant studies phosphorus reduction was improved from 58% up to 81% by adding 10 mgFe/L ferrous sulfate in the activated sludge (AS) process. The phosphorus reduction in full-scale experiment was about 80% ...
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Minnesota debates phosphorus discharge limits for improved water quality
City leaders across the Minnesota River Basin are protesting proposed phosphorus standards, which they contend will be too expensive and have little or no effect on water quality. In January, 41 of the 147 Minnesota cities in the basin outlined their objections in a letter to the governor and the Minnesota Pollution Control Agency. Many of these cities’ wastewater treatment plants ...
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Municipal Water Purification Plant - Case Study
The main purpose of the water plant is to treat urban domestic sewage and a small amount of industrial sewage. In order to make the effluent total phosphorus meet the discharge standard of 0.4ma/l for surface water. In this plant, PFS was used in the biochemical end of the plant for chemical enhanced phosphorus removal and SS reduction. After the use of our pharmaceutical agent, the total ...
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The relationship between BOD:N ratio and wastewater treatability in a nitrogen-fixing wastewater treatment system
A BOD:N:P ratio of 100:5:1 is often used as a benchmark for nutrient addition in nutrient limited wastewaters. The impact of varying nitrogen levels, whilst maintaining phosphorus constant, was studied in a simulated aerated lagoon (BOD:N of 100:0; 100:1.3; 100:1.8; 100:2.7 and 100:4.9). A synthetic wastewater was prepared using methanol, glucose and acetate as the combined carbon source, ...
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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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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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Background & Challenges, Citronelle, Alabama Case Study
The town of Citronelle, Alabama consists of approximately 5000 people located about an hour from the Gulf Coast within the boundaries of Mobile County. Geographically unique, Citronelle is built atop a giant salt-cored dome that is still rising steadily, within the eastern Interior Salt Basin in southwest Alabama. With over 2400 kms (1500 miles) of inland waterways, Alabama has one of the ...
By Nexom
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Environmental impact analysis of chemicals and energy consumption in wastewater treatment plants: case study of Oslo, Norway
Wastewater treatment plants, while performing the important function of treating wastewater to meet the prescribed discharge standards, consume energy and a variety of chemicals. This paper analyses the consumption of energy and chemicals by wastewater treatment plants in Oslo over eight years, and their potential environmental impacts. Global warming and acidification were the dominant impacts ...
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A Calgary Wastewater Treatment Plant Finds Real-Time Information on Effluent Quality Critical to Achieving Consistent Performance in Biological Nutrient Removal
In 1994, the Bonnybrook Wastewater Treatment Plant in Calgary, Alta., completed the first phase of an upgrade to biological nutrient removal (BNR) after several years of testing. Bonnybrook was not the first treatment plant to upgrade bioreactors for nutrient removal: Other communities had struggled with the technology. Bonnybrook operators determined that real-time information on final effluent ...
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Province-based self-remediation efficiency of the Tha Chin river basin, Thailand
The Tha Chin River Basin located in the great central basin of Thailand is used for water supply, aquaculture, transportation, and recreation as well as a sink for wastewater discharges. Because of gradual deterioration of water quality and fishery resources, this study aimed to explain recent status of the river self-remediation efficiency that was influenced by nutrient inputs and outputs from ...
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How can money be made from sewage?
The water industry’s seen a clever development take place from Vancouver based company Ostara who has found a way to not only make money from sewage, but also reduce water pollution. The new technology is capable of harvesting phosphorus and ammonia from municipal sewage treatment plants and then create fertiliser pellets from the harvest! So what are the benefits of this new process? ...
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EPA assessing wastewater nutrient pollution
Nutrient pollution of waterways is the “single greatest challenge to our nation’s water quality,” according to the United States Environmental Protection Agency. Across the U.S., excess nitrogen and phosphorus are entering waterways, presenting seemingly constant challenges. To address these challenges, the EPA is surveying the nation’s publicly owned wastewater treatment ...
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Ferric chloride distribution, Phosphorus reduction in a Wastewater pond- Case study
Topics: wastewater, ammonia, energy savings, facultative, phosphorus, short-circuiting, treatment savings Overview: This is a municipal wastewater treatment system for the city. The system consists of a series of four ponds. Storage Pond #1 has a surface area of 1.3 acres, with a volume of 3.5 MG. Storage Pond #2 has a surface area of 4.2 acres, with a maximum depth of 12 ft, volume of about ...
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Membrane thickening aerobic digestion processes
Sludge management accounts for approximately 60% of the total wastewater treatment plant expenditure and laws for sludge disposal are becoming increasingly stringent, therefore much consideration is required when designing a solids handling process. A membrane thickening aerobic digestion process integrates a controlled aerobic digestion process with pre-thickening waste activated sludge ...
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Doing it with data - Case Study
In 1994, the Bonnybrook Wastewater Treatment Plant in Calgary, Alta., completed the first phase of an upgrade to biological nutrient removal (BNR) after several years of testing. Bonnybrook was not the first treatment plant to upgrade bioreactors for nutrient removal: Other communities had struggled with the technology. Bonnybrook operators determined that real-time information on final effluent ...
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Kahramanmaras Wastewater Treatment Plant – Case Study
Project Name Kahramanmaras Wastewater Treatment Plant Employer Kahramanmaras Municipality Contractor Enta Muhendislik Antma Taah. San. Ve Tic. Ltd.Sti. Location of the plant Kahramanmaras / TURKEY Scope of work Design of Domestic Wastewater Treatment Plant Contract Date 2015 Completion Date 2016 Flowrate of the plant: 111.000 m3/ day: Inlet Pollution Parameters: COD: 70.304 kg/day BOD: ...
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Nutrient Optimization for Pulp & Paper Wastewater Treatment Plants - An Opportunity for Major Cost Savings
Abstract Pulp & paper wastewater treatment plants (WWTP) often add nitrogen and phosphorus to ensure optimum performance. If there are insufficient nutrients for bacterial metabolism, an increase in effluent total suspended solids (TSS), biological oxygen demand (BOD) and/or chemical oxygen demand (COD) may occur. As well, nutrient deficiency can cause or contribute to acute or chronic ...
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Kahramanmaras Wastewater Treatment Plant – Case Study
Project Name Kahramanmaras Wastewater Treatment Plant Employer Kahramanmaras Municipality Contractor Enta Muhendislik Antma Taah. San. Ve Tic. Ltd. Sti. Location of the plant Kahramanmaras / TURKEY s Scope of work Design of Domestic Wastewater Treatment Plant Contract Date 2015 Completion Date 2016 Flowrate of the plant: 111.000 m3/ day Inlet Pollution Parameters: COD: 70.304 kg/day BOD: ...
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