decentral wastewater treatment plant Articles

  • Decentralized Wastewater Treatment

    An application used worldwide, now growing in US to address the needs of small communities and developments Conventional sewer operations managed by small communities provide centralized treatment of wastewater of which residents are accustomed. But the expense of operating these systems as they expand with miles and miles of sewer lines is staggering. Expanding sewer line infrastructure, ...


    By Bio-Microbics, Inc.

  • Sustainability of decentralized wastewater treatment technologies

    In many Countries, small communities are required to treat wastewater discharges to increasing standards of lesser environmental impacts, but must achieve that goal at locally sustainable costs. While biological membrane treatment (membrane bio-reactors (MBRs)) is quickly becoming the industry standard for centralized wastewater treatment plants, and would also be ideally suited also for small ...


    By IWA Publishing

  • What is decentralized treatment?

    Why is decentralized treatment an important solution for global water scarcity challenges? As the climate shifts and water supplies shrink due to increased use by municipalities, agriculture, and industry, the need for effective and efficient water and wastewater treatment in remote locations is growing exponentially all over the globe. In addition, the energy to power these plants and ...


    By Fluence Corporation

  • The ecological filter system for treatment of decentralized wastewater

    A vertical flow constructed wetland was combined with a biological aerated filter to develop an ecological filter, and to obtain the optimal operating parameters: The hydraulic loading was 1.55 m3/(m2·d), carbon–nitrogen ratio was 10, and gas–water ratio was 6. The experimental results demonstrated considerable removal efficiency of chemical oxygen demand (COD), ammonia nitrogen ...


    By IWA Publishing

  • A Submerged Attached Growth Bioreactor for Decentralized Wastewater Treatment

    ABSTRACTThe Amphidrome® process is a submerged attached growth bioreactor (SAGB) that has been used in Massachusetts, Connecticut, Rhode Island and New Jersey for decentralized wastewater treatment systems ranging in size from 440 gpd to 150,000 gpd. The two primary advantages of a SAGB are the small volume requirement and the elimination of downstream clarification. Five years of data from four ...

  • An Infrastructure Grows · Decentralized Treatment and Recycling Domestic Wastewater

    THE TERM, “decentralized waste-water management,” refers to the process of treating and discharging treated wastewater in the local vicinity where it is generated. Decentralized systems typically use the soil as the final receptor of the treated wastewater instead of discharging to surface waters, which are generally the receptors of treated wastewater from larger centralized treatment plants. ...


  • Robust decentralized wastewater treatment for small communities…FAST®

    For many small and medium communities, centralized or conventional sewer options are technically complicated and/or are often the expensive choice for managing wastewater treatment. As the demand for water reaches critical levels for most areas around the world, decentralized treatment systems are becoming increasingly popular by returning treated water back to the local environment.  ...


    By Bio-Microbics, Inc.

  • Start-up of a decentralized pilot plant for the anaerobic treatment of domestic wastewater

    This paper is about the set-up and start-up of a decentralized anaerobic pilot plant for producing domestic service water from domestic wastewater. The plant consists of a two-stage anaerobic digestion process for degrading organic matter and a third-stage for ammonium removal using the Anammox process. Each reactor was started independently with synthetic wastewater of stage-specific ...


    By IWA Publishing

  • Introduction to Decentralized Packaged Wastewater Treatment (PWWT) Systems - PDH Article

    Learning Objectives After reading this article, you should understand: Functions and processes of a decentralized PWWT system; Design considerations of a PWWT system. Overview "Clean water will be the oil of the 21st Century." The accuracy and magnitude of this statement is resonating worldwide. ...

  • Decentralized wastewater management in Kieu Ky Vietnam

    1. Overview and Key Points In order to eliminate the common ‘out of sight out of mind approach’ in sanitation, whereby sewers and/or drains are discharged into rivers, a Decentralized Wastewater Treatment System (DEWATS) was designed and implemented in Kieu Ky to treat wastewaters arising residential properties and various craft industries. A clear understanding of topography, ...


    By IWA Publishing

  • Decentralized water treatment and local water shortages

    MIT researchers conclude that alternative approaches to water planning can alleviate urban water supply issues quickly and inexpensively Urban areas around the world are expanding rapidly as the global population increases and people are moving to cities at a fast pace. This puts a strain on current infrastructure, including water treatment plants. Add global warming and increasing drought ...


    By Fluence Corporation

  • Where Is the Most Water Reuse Taking Place?

    Water reuse is becoming increasingly important as water scarcity becomes prevalent throughout the world. Whether it’s referred to as water reuse, water recycling, water reclamation, or another name, the resulting purified wastewater can be used in many applications, both potable and nonpotable. In some places, water reuse has been slow to catch on, particularly because of the so-called ...


    By Fluence Corporation

  • Investigating the interactions of decentralized and centralized wastewater heat recovery systems

    In the urban water cycle there are different sources for extracting energy. In addition to potential and chemical energy in the wastewater, thermal energy can also be recovered. Heat can be recovered from the wastewater with heat exchangers that are located decentralized and/or centralized at several locations throughout the system. It can be recovered directly at the source (e.g. in the ...


    By IWA Publishing

  • Technical and experimental evaluation of an innovative decentralized technology for the municipal wastewater treatment in the city of Rome

    The present paper shows the results obtained through an experimental activity carried out on a pilot-scale plant using an innovative technology which couples the granular aerobic sludge with the sequencing batch process. Treatment efficiency and operation costs were evaluated in order to assess feasibility of this new technology for the upgrading of the existing continuous flow activated sludge ...


    By IWA Publishing

  • Technical-economical analysis of selected decentralized technologies for municipal wastewater treatment in the city of Rome

    Several wastewater treatment technologies were evaluated as alternative systems to the more traditional centralized continuous flow system to serve decentralized areas of the city of Rome (Italy). For instance, the following technologies were selected: (1) Constructed wetlands, (2) Membrane Biological Reactor, (3) Deep Shaft, (4) Sequencing Batch Reactor, and (5) Combined Filtration and ...


    By IWA Publishing

  • Life Cycle Assessment of Decentralized Wastewater Systems and its Comparison to Centralized Wastewater systems

     ABSTRACT The typical process flow of collecting, treating, and disposing wastewater – identified as the centralized approach – consumes large quantities of energy while releasing environmental emissions. The traditional wastewater treatment plant design is developed on the premises of economies of scale, assuming unit costs to treat wastewater decrease as the plant capacity increases. ...

  • Design and development of decentralized water and wastewater technologies: a combination of safe wastewater disposal and fertilizer production

    Modern wastewater treatment plants are often inappropriate for communities in developing countries. Such communities lack the funding, resources and skilled labour required to implement, operate, and maintain these plants. This research was conducted to investigate and establish an appropriate wastewater treatment system for the district of Gunung Kidul, Indonesia. Due to its lack of water during ...


    By IWA Publishing

  • Otis, MA municipal wastewater treatment plant information

    Small and rural communities generally find it difficult to assemble the resources to develop a traditional wastewater infrastructure.  Yet, without infrastructure it is difficult to enhance property values and economic development.  Decentralized wastewater treatment systems represent a low cost, low impact and high benefit solution.  Employing modular systems whose processes are ...


    By Aquapoint

  • Wastewater Treatment for the Mining Industry

    Sustainable wastewater technologies minimize mining’s environmental footprint Mining for some minerals, including coal, has been diminishing due to increased financial, social, and environmental pressures, both in the United States and abroad. At the same time, mining for lithium and other metals — used in energy storage for electric cars, and wind and solar generation — is ...


    By Fluence Corporation

  • Compact solutions for advanced wastewater treatment aiming to recover and reuse

    The environmental pollution caused from unregulated raw sewage discharge coming from small municipalities, remote communities, small housing complexes, tourist facilities, camps, factories, harbors and other similar sources that until now was difficult to construct suitable Treatment Facilities is quite extensive in many areas and is now the time for the authorities to take action. The necessity ...


    By DEVISE ENGINEERING S.A.

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