wastewater clarifier tank Articles

  • 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 ...

  • Seven Ways Your Facility Isn’t Meeting Effluent Regulations and How to Solve Them

    Whether you own, operate, or help manage a municipal or industrial facility that deals with wastewater, it’s important to understand how wastewater treatment can play a significant role in the overall health of your business, especially when it comes to meeting effluent regulations. This is an important part of the wastewater treatment process to consider, as ignoring it could earn your ...


    By SAMCO Technologies, Inc.

  • Examination of sludge accumulation rates and sludge characteristics for a decentralized community wastewater treatment systems with individual primary clarifier tanks located in Wardsville (Ontario, Canada)

    In conventional septic systems, settling and partial treatment via anaerobic digestion occurs in the septic tank. One of the byproducts of solids separation in the septic tank is a semi-liquid material known as septage, which must be periodically pumped out. Septage includes the liquid portion within the tank, as well as the sludge that settles at the bottom of the tank and the scum that floats ...


    By IWA Publishing

  • SaniTEE: an ideal septic tank wastewater screen

    SaniTEE is an effluent wastewater screen (commonly known as an effluent filter) that reduces the gross suspended solids discharged in septic tank effluent. This helps extend the lives of drain fields, reduces clogging of orifices in effluent disposal systems, and allows use of non-solids handling effluent pumps. It is shown in Figure 1. It fits inside a standard septic tank outlet tee by dropping ...


    By Bio-Microbics, Inc.

  • Innovative use of lamella clarifiers for central stormwater treatment in separate sewer systems

    Lamella settlers have been used in the past few years for the sedimentation of particles in wastewater and stormwater applications. A new and very innovative approach for the treatment of stormwater flows is proposed which extends the portfolio of solutions beyond traditional settling tanks. Surface runoff is stored in a sewer or a basin and finally treated in a small but continuously operated ...


    By IWA Publishing

  • What is Wastewater?

    What is wastewater? Wastewater, the waste discharge that first comes to mind in any discussion of stream pollution, is the discharge of domestic wastewater, which contains a large amount of organic waste. Industry also contribute substantial amounts of organic waste, some of which comes from vegetable and fruit packing; dairy processing; meat packing; tanning; processing of poultry, ...

  • Implementation of CFD modeling in the performance assessment and optimization of secondary clarifiers: the PVSC case study

    The water industry and especially the wastewater treatment sector has come under steadily increasing pressure to optimize their existing and new facilities to meet their discharge limits and reduce overall cost. Gravity separation of solids, producing clarified overflow and thickened solids underflow has long been one of the principal separation processes used in treating secondary effluent. ...


    By IWA Publishing

  • Wastewater-Primary Treatment

    Primary Treatment is defined as a wastewater treatment process that takes place in a rectangular or circular tank and allows those substances in wastewater that readily settle or float to be separated from the water being treated. This process achieves solids separation. The solids readily available to settle to achieve sedimentation will do so in a settling tank referred as a clarifier. On the ...

  • The natural way to clean wastewater

    John Todd founded Ocean Arks International in the 1980s, where he started to experiment with processes that mimic natural ways to purify wastewater. He built a greenhouse and ran sewage through a series of tanks, with plants suspended in the flowing waters, and constructed marshes made of sand and gravel. No chemicals were added, but plenty of aquatic creatures from snails to small fish were ...


    By BioCycle Magazine

  • High Rate Treatment of CSO/SSO Flows Using a High Density Solids Contact Clarifier/Thickener - Results from a Pilot Study

    ABSTRACT A two-month pilot study was conducted at the Village Creek Wastewater Treatment Plant in Birmingham, Alabama to test the technical feasibility of utilizing a ...

  • New process for Reusing produced wastewater

    Abstract: In November 2002, a new facility at the Liaohe Oilfield in Liaoning Province, China was commissioned to treat 20,000 m3/day of produced wastewater. The aim of the process is to provide water quality which is suitable as feed water for the high pressure, once-through steam generators. The performance during the first 8 months of operation has been demonstrated. Due to the unique ...


    By Eco-Tec Inc.

  • Wastewater Metals Removal

    Industrial Wastewater Treatment Success Stories Wastewater Treatment Metals Removal Ton Nerve Gas Agent Container Rinse Waters ...


    By Integrated Engineers Inc.

  • Wastewater Odors Go Under Cover

    Problem: A new residential golfing community wanted to prevent odor emissions from the local wastewater treatment plant from affecting the lifestyle of its residents. Solution: Flat structural-fabric covers were installed over the treatment plant's aeration tanks and primary clarifiers. ...


  • Home, Sweet Wastewater Building

    How can a wastewater treatment plant embedded into a neighborhood not use much landmass and be environmentally friendly and user-friendly all at the same time? One system aims to do all of the above. Why should a wastewater treatment plant always have to look like, well, a wastewater treatment plant?  A visual trip through project files of Aqueonics Inc., based in Greenville, SC, reveals photos ...


    By Aqueonics, Inc.

  • Town of Manhattan Wastewater Treatment Plant

    The Manhattan treatment plant is a 400,000 GPD plant in two trains, containing six 24 x 5.0 Bio-WheelTM. It is able to nitrify and denitrify, with two anoxic basins ahead of the aeration basins. Two conventional flight and scraper clarifiers are used. Three Penn Valley RA S/MLSS pumps are located in a separate pump room. The plant is designed for a future expansion to 0.8 MGD. At this time the ...


    By H2O Innovation

  • Montemorelos wastewater plant case study

    Performance History and Discussion In-Pipe Technology Company, Inc. was selected with goals to improve the biological treatment capacity at the wastewater treatment plant (WWTP) without capital expansion of the current facility. Due to the inability to make a capital investment to expand unit operations and processes, a municipal treatment plant in Montemorelos can not meet the needs of a ...

  • Wastewater Reuse in Zinc Plating: Protectakote Pty Ltd

     Protectakote Pty Ltd has implemented a waste water recycling system at its Geelong facility which is saving it approximately $19,600 per annum and had a very attractive payback of 0.7 years, even without full qualification of all the benefits. Background Protectakote Pty Ltd (Protectakote) is a small metal plating and powder coating operation located in the Geelong region ...


  • Aluminum Anodizer Wastewater Treatment Case Study

    Manufacturing Wastewater Treatment Case Studies Aluminum Anodizer Case Study 2 The facility treats their wastewater using an EQ Tank followed by a Mix tank and clarifier. The solids that settle are ...


    By Integrated Engineers Inc.

  • Glass Recycling Facility Wastewater Treatment Case Study

    Recycling Wastewater Treatment Success Stories Glass Recycling Facility Wastewater Treatment A glass recycling facility needed a means to increase the size of their settled solids so they could be ...


    By Integrated Engineers Inc.

  • Uncertainty Analysis in Wastewater Engineering Modeling: Understanding the Limitations

    ABSTRACT Design engineers commonly rely on physical and mathematical approximations or models of real complex phenomena. During the development of these physical or mathematical models, simplifications and assumptions need to be made to develop such tools. It is unrealistic to expect that the modeling process will give an answer that is a perfect match to the real case, and it is, therefore, ...

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