sewer flushing Articles

  • Washoff behavior of in-sewer deposit in combined sewer system through artificial flushing experiment

    In-sewer deposits in combined sewer systems (CSSs) are closely related with the behavior of first foul flush and combined sewer overflows. However, the research paying attention to the role of in-sewer deposits is quite rare, furthermore, their contributions for the washoff patterns of each pollutant including pathogenic microorganisms are almost never discussed so far. The artificial flushing ...


    By IWA Publishing

  • Modelling the erosive effects of sewer flushing using different sediment transport formulae

    A numerical investigation to simulate the cleaning effects of successive flushes over sediment beds in prismatic channels is presented in this paper. The 1D De Saint Venant-Exner equations were used to describe the temporal evolution of the sediment bed after each flush. The predictive capacity of two sediment transport formulae was explored against experimental results from laboratory tests. ...


    By IWA Publishing

  • The application of improved flow diverter for first flush management

    The paper presents the investigations on first flush phenomenon based on the total suspended solids (TSS) concentration measurement during selected rainfalls at central part of Czestochowa (Poland) and also the hydrodynamic model of the catchment. The model allows to present the conception of first flush management using an improved flow diverter Septurn. Flow diverters used in the separate sewer ...


    By IWA Publishing

  • Combined seawater toilet flushing and urine separation for economic phosphorus recovery and nitrogen removal: a laboratory-scale trial

    Freshwater toilet flushing consumes 20–35% of typical household water demand. Seawater toilet flushing, as practised by Hong Kong since 1958, provides an alternative water source. To maximise the benefits of this unique dual water supply, urine separation could be combined to allow low-cost struvite production and subsequent urine nitrification – in-sewer denitrification. ...


    By IWA Publishing

  • ABS-181 Hydrogen Peroxide Enhancer

    Introduction The conventional sewer cleaning system can only bandaging the problems which cannot provide solution to prevent sewer line corrosion caused by toxic gases, organic constriction, deprived penetrating distance, generated large amount of hazardous organic and inorganic waste to increase environmental burden. The Objectives of the present invention is an aggressor method providing ...

  • Case study - City of Chicago, Illinois

    Project: Rooftop rainwater to flush toilets - Valley Forge Field House Challenge: The Chicago Public Building Commission, in coordination with the Chicago Parks Division, wanted its newest Field House on Valley Forge Road to serve as an example of sustainable building practices.  So there was interest in retaining and reusing the rainwater and stormwater from the ...

  • Field campaign on sediment transport behaviour in a pressure main from pumping station to wastewater treatment plant in Berlin

    As part of the project KURAS, the Berliner Wasserbetriebe realized a field campaign in 2015 in order to increase the process knowledge regarding the behaviour of transported sediment in the pressure main leading from the pumpstation to the wastewater treatment plant. The field campaign was conducted because of a lack of knowledge about the general condition of the pressure main due to its bad ...


    By IWA Publishing

  • Aquacell S100 - 1 Bligh Street, Sydney case study

    Location: Sydney, Australia Client: Dexus and Cbus Property Capacity: 26,000 gallons/day Source: Blackwater from toilets, hand basins, mined sewer Recycled Use: Toilet flushing and cooling tower make-up The Property Located in the heart of ...

  • Research of the performance of pulse electrohydrodynamics in blockage removal

    In line with contemporary trends and seeking to develop new methods and technologies, a new, original technology was explored and designed based on a non-conventional process of electrical pulse discharge in a water chamber, referred to as ‘Pulse Electrohydrodynamic Technology’ (PELHYDT). The application of the PELHYDT in sewer blockage removal is presented in this paper. Existing machinery can ...


    By IWA Publishing

  • Is human excreta a waste?

    Every day a huge amount of excreta is being produced by human society and it is also considered one of the most unwanted waste/refuse of the society because of its nuisance and diseases causing characteristics. However, it is also utilised as a fertiliser and soil conditioner in several countries such as India and China. Presently most common sanitation concept is centralised treatment of human ...


    By Inderscience Publishers

  • Types and distribution of improved sanitation technologies in sub-Saharan Africa

    Access to improved sanitation technologies in sub-Saharan Africa (SSA) is very low. Despite the importance of improved sanitation technologies in sanitation monitoring, little attention has been given towards the types and distributions of improved sanitation technologies used in SSA. This paper presents an analysis of the distribution of improved sanitation technologies in SSA, with ...


    By IWA Publishing

  • Aquacell SRN20 - Joalah Holiday Park, NSW case study

    Location: Durras North, NSW Client: Joalah Holiday Park Capacity: 20,000L/day Source: Wastewater from toilet, showers and laundry Recycled Use: Toilet flushing and irrigation Commissioned: November 2007 On the beautiful South Coast of NSW, ...

  • Water Recycling in Yarra Park - Case Study

    Water is a precious resource, yet we have traditionally used it once and disposed of it through our sewage treatment plants. There are many activities that do not require drinking quality water and could use recycled water (e.g. irrigation and toilet flushing). By using recycled water that is treated for its intended use, less water from the potable (drinking) system is ...


    By IVWater

  • Grease reduction in wastewater treatment plant, City of Broken Arrow, OK

    A 300 foot section of 6" sewer line was clogged with grease. After the City Personnel broke it free and flushed it towards the treatment plant, a gallon of BYO‐GON PX‐109 was added to the line. The operators at the plant were notified that in 21 hours, 300 feet of grease and other debris would be going to the plant. The operators were ready, but the grease never arrived. Tests on the ...


    By Byo-Gon, Inc.

  • Sewer mining to supplement blackwater flow in a commercial high-rise Australia-Sydney case study

    Project Background or Rationale Australia’s warm climate and habitual droughts have resulted in innovative water conservation practices in commercial developments, such as 1 Bligh Street in Sydney. Commissioned in May 2011, the highly acclaimed 29 story office tower overlooking the Sydney Harbor captures nearly 100 percent of its wastewater and reuses it in the building. By recycling ...

  • Saline sewage treatment and source separation of urine for more sustainable urban water management

    While energy consumption and its associated carbon emission should be minimized in wastewater treatment, it has a much lower priority than human and environmental health, which are both closely related to efficient water quality management. So conservation of surface water quality and quantity are more important for sustainable development than green house gas (GHG) emissions per se. In this ...


    By IWA Publishing

  • Water System Infrastructure – A View of Where We Are, Where We Could Go and How We Can Get There.

    This is the first of several essays that are aimed at focusing attention on water and sewer infrastructure systems. In this essay, the current state of city and regional systems are examined, the current state of the industry will be examined next, investigating some of the tools, resources and technologies that are available, today. Beyond that, the final essay in this series will look at the ...


    By H2bid, Inc.

  • Wastewater treatment plant operators work confidently with complete system measurement

    Wastewater treatment is a vitally important process. Just ask The Township of Edwardsburgh/Cardinal’s Assistant Chief Water and Sewer Operator, Eric Wemerman.  “For a community to keep everyone’s trust you want to make sure you’re operating a good system.” Eric continues.  “It’s important for health reasons, when people flush their toilets you ...


    By Greyline Instruments Inc.

  • Greywater recycling system

    Every new home should have a Grey Water Recycling System! This innovative new product allows you to re-use your greywater (previously wasted) and recycle it for use on your gardens or reuse back through the toilets for flushing or in the laundry. Right now this is so important with low water levels, and water prices and council restrictions on the increase. The Ozzi Kleen GTS10 Greywater system's ...

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