clarifier design Articles
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Role of the behavioural analysis in the product repair and replacement process: the preliminaries
Current product representation schema in any solid modelling system consists of product's geometrical (structural) and topological information only. Unless the functional, behavioural and causal information related to the product, is either explicitly described or derived from knowledge of the structure and topology, the overall behaviours of the product (more importantly, its faulty behaviour ...
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Static Circular Clarifier, the best solution to reduce costs
Settling is a solid-liquid separation process commonly used in water treatment. The Static Clarifiers are designed especially for biological processes like for example secondary sedimentation. However, lamellar clarifiers are designed for the separation of inorganic solids, usually in primary sedimentation. The prefabricated Clarifiers are made in Inox, steel or GRP in one single piece, reason ...
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Upgrading south caboolture STP Existing clarifiers to Include Headmax® suction tubes - Case study
The South Caboolture STP was upgraded in 2010 to increase its capacity from 40,000 to 80,000 EP. The upgrade will enhance the quality of the effluent produced and improve the overall amenity of the plant. An existing gravity thickener was upgraded to include new/refurbished internals. This included a HeadMax® suction tube system . Key benefits of the HeadMax® include: Flat floor ...
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Simultaneous clarification and endogenous post denitrification by up-flow through a layer of floating media
KeywordsBiological nutrient Removal, Post denitrification, Clarifier design, Pilot study IntroductionMethods to comply with the most updated low effluent total nitrogen (TN) regulations include, in addition to a high internal circulation ratio to a pre-denitrification stage, either a large intermediate anoxic zone, or a post denitrification stage with addition of an external, purchased, carbon ...
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SedVac vs. Traditional Sludge Collection Systems
Solids settling is a critical aspect of most water treatment applications. Whether a tank utilizes a form of advanced solids settling through the use of tube settlers or plate settlers, or if the basin has a simple open clarifier design, solids that amass on the floor must be periodically removed. One way to achieve this sludge collection is by draining the tank and manually sweeping the basin ...
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Replacement of 130 ft Secondary Clarifiers at a 25 MGD wastewater treatment facility
Challenge A municipal WWTP found that (2) of their secondary clarifiers were too rusted and corroded to properly function. A traditional clarifier refurbishment consisting of sandblasting and painting was not a viable option because one of the clarifier rake arms had recently broken due to its poor condition. The plant engineers decided that a clarifier rebuild was necessary to ensure proper ...
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A Federal District Court Issues First Decision Regarding New “Waters Of The US” Regulations
In this post, "Waters of the United States" webinar instructor Larry Lodwick explains the latest about the temporary injunction on the EPA's new federal clean water rules. For full information about the latest on this, and details of the Rule updates, enroll in the upcoming webinar. On August 28, the U.S. District Court in North Dakota issued a temporary injunction against new federal clean ...
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Atmospheric dispersion modelling for regulatory purposes in the United Kingdom
Short-range atmospheric dispersion models are used to assess the environmental impact of airborne pollutants from industrial plants. The results are of interest to a range of specialist and non-specialist groups, including regulators, operators, environmental organisations, and local residents. In order that these groups can be well-informed, it is important to develop clear and consistent ...
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Particle settling with lamella clarifiers/ tube settlers
Watch video tutorial here: https://www.youtube.com/channel/UCZjWoTGgz-abBjNNPIBljlw Particles in water and waste water accelerate towards the tank bottom as long as the gravity force is bigger than the sum of all drag forces. The settling velocity of the particle is Vs = H/t. In reality the settling velocity is never constant as other particles, water turbulences and sludge accumulation hinder ...
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Lamella clarifier guideline – tube settler design and CFD simulation (Video animation)
Apart from the selection of the right lamella clarifier module the design of lamella clarifier tanks requires several design considerations. More details on the selection of the right lamella clarifier module can be found in the linked video. Other parts of a lamella clarifier tank are the water inlet, sludge settling and water outlet zone. The most important design guideline is to achieve an ...
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Monroe Environmental Saves Steel Mill $145,000 on Clarifier Upgrade and Meets Stringent Performance Requirements
Challenge A prominent midwestern steel mill needed to put one of its blast furnaces back online in order to increase production and keep up with rising demand. Blast furnace “C”, said to be one of the most efficient blast furnaces in the world for its size, required a large volume of water to maintain proper operation, and the mill’s existing water treatment plant was ...
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Rectangular vs. Circular Clarifiers: Which is better?
Both rectangular and circular configurations have been commonly used in clarifier basins. The relative merits of the two have been discussed at length for decades. Historically, the selection of rectangular versus circular clarifiers has been based on past experience and the preference of the design engineer or design company. Initial wastewater treatment plant designs in the United States were ...
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Handling food processor wastewater treatment surprises with automatic scraper strainers
For food processors, removing suspended solids such as fats, grease, grit, contaminants, and leftover process materials from liquids is necessary to comply with regulations like the EPA’s Clean Water Act, which sets wastewater standards for industry and national water quality criteria for pollutants in surface waters. To remain compliant, processors often use clarifiers, also known as ...
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New treatment plant to feature ceramic membranes
The Parker Water and Sanitation District (PWSD) in Colorado has contracted for a membrane treatment system for its Rueter-Hess water treatment plant project. The new plant will treat water from the Rueter-Hess Reservoir (RHR), which is being built three miles southwest of downtown Parker on Newlin Gulch, which is a tributary drainage of Cherry Creek. The reservoir and associated treatment plan ...
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Creating Slipway Design Drawing
Designing slipways requires careful planning, engineering expertise, and attention to detail to ensure the safe and efficient launch and retrieval of vessels. Slipways are inclined ramps or platforms used for launching and docking boats, yachts, and ships in marine facilities such as boatyards, shipyards, and marinas. Creating detailed slipway design drawings is a crucial step in the construction ...
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Accurately Measuring Settled Sludge with the Sludge Finder 2
The City of Mirabel, Quebec, Canada, was created in 1971 from the merger of 14 municipalities and is home to over 59,000 citizens. The city is constantly growing due to the many opportunities available, so it is important that all the city's utilities, such as a wastewater treatment plant, are always up and running. What did they need? In the wastewater treatment process, the primary clarifier ...
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Full scale municipal implementations of the Agar IFAS process for municipal wastewater treatment
Wastewater treatment plant retrofits worldwide are motivated by two main developments: a. Changes in effluent quality regulations, either to more stringent BOD/TSS requirements, or to include nutrient (N and P) removal b. Increase in flows to existing plants, due to either population growth or to expansion of sewerage systems One process capable of giving a cost-effective solution for these ...
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A look back at the Durban climate talks
The negotiations in South Africa were challenging and the politics complex. Countries were uncertain whether the international community would succeed in laying the groundwork for a legally binding agreement. Until the final weekend the prognosis was bleak, with several predicting the talks would collapse. Hence the Durban Platform for Enhanced Action was by no means an insignificant achievement. ...
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Illustrating our best solutions - Case study
Sierra CP can help you design, build or upgrade your next world class engine and vehicle test facility. Our working style is one of teamwork, innovation, flexible solutions and challenging the status quo in all that we do. Your facility must reflect your brand to the highest level in look and feel and back it up with excellent testing performance. Our experience covers the complete scope of ...
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The design and installation of the gas collection system
The designer of gas collection plants has the task to fulfill optimally the important criteria: stability of gas quality efficiency of collection economic viability of the plant The stabilisation of the gas quality helps to solve the problem between the uneven gas production of the landfill on the one side and the steady supply of gas to the utilisation plant, on the other. Only a ...
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