water treatment odour control Articles

  • From Waste in Anodising Plant to New Chemical Product in Sewage Treatment Plants

    Aluminium containing caustic soda used as a pickling agent in the pre-treatment of aluminium before anodising and aluminium containing sulphuric acids used as electrolytes for the formation of oxide layers in anodising plants can be utilised in municipal sewage treatment plants to reduce phosphates and improve precipitation. From the anodiser's point of view, these products are spent once they ...


  • Purification of domestic sewage by water-hyacinth (Eichhornia crassipes)

    Sewage management is posing serious techno-economic problems in cities, particularly in developing countries. A new technology, sewage purification by water-hyacinth (Eichhornia crassipes), is a possible solution. This paper studied the suitability and effectiveness of water-hyacinth in treating domestic sewage. A 28-day experiment was performed under a controlled environment of a screen-house ...


    By Inderscience Publishers

  • WPL supplies Farne Salmon and Trout with a substantial new effluent treatment plant case study

    A new effluent treatment plant designed by WPL is ensuring that Farne Salmon and Trout Ltd in Berwickshire - one of Europe's largest smoked salmon facilities - complies with tighter local trade effluent discharge regulations, whilst significantly reducing its sewer discharge costs. WPL worked with Farne and Scottish Water from an early stage to design ...


    By WPL Ltd

  • Current Trends in Modelling Water Distribution Systems

    Untitled Document Hydraulic Modelling is emerging from the infrastructure planning offices of our water utilities, where it continues to play a vital role in optimising capital investment projects, to take a ...


    By Innovyze

  • Invasion of the non-indigenous nuisance mussel, Limnoperna fortunei, into water supply facilities in Japan

    ABSTRACTThe aquatic nuisance mussel, Limnoperna fortunei, arrived in Japan before 1987 possibly with the Asian clam imported as food from mainland China. Now the mussel’s distribution has spread to two river systems in central Japan. Water authorities reported several cases of damage caused by L. fortunei. Most cases of damage were caused by dead mussels clogging small diameter pipes for raw ...


    By IWA Publishing

  • In practice: M2M technology and H2S

    Coping with H2S is a crucial topic. Besides causing unpleasant odours, hydrogen sulfide can also lead to corrosion of important components as well as damages to health. Microtronics supports experts in water and wastewater treatment in coping with H2S with various M2M products and a platform. In practice there are different forms of applications. The measurment and transmission of ...

  • Sewage of Tripoli: a review of the current situation and of the future planning

    Tripoli represents a major urban area in Lebanon with about 350,000 people in the city, which may swell by additional 100,000 when the city surrounding population is counted. It used to be a dominant agricultural region, but the last three decades witnessed a rapid development of urban construction. The goal of this paper was to present the current situation regarding the sewage disposal, ...


    By Inderscience Publishers

  • Rotork actuators with profibus - Case Study

    Introduction Rotork IQPro intelligent electric actuators with Profibus two-wire digital control provide an adaptable, reliable and economical solution for automated valve monitoring and control, as illustrated by examples in the UK water and sewage treatment industries. Two recent projects undertaken by Wessex Water serve to illustrate the benefits of adopting Profibus-enabled ...


    By Rotork

  • Croyde WwTW zero nuisance plant, United Kingdom

    South West Water 120 m3/hr The Client South West Water provides water and sewerage to 1.6 million customers in Devon, Cornwall and parts of Dorset and Somerset. The region attacts over 8 million holiday makers to the 625 miles of scenic coastline and countryside. The company is part of Pennon Group Plc. The Client's ...


  • 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 ...

  • Ashford STC Expansion, United Kingdom

    Southern Water 10.5 tons dry solid per year (TDS/yr) The Client Southern Water provides water supply and sewerage services in the counties of Kent, East and West Sussex, Hampshire and the Isle of Wight, and small parts of Wiltshire, Berkshire and Surrey. The Client's Needs The purpose of the works was to ...


  • Shell Green Mersey valley processing centre extension

    An extension to an existing sludge incineration and treatment plant The Client United Utilities (UU) are the 2nd largest water company in England /Wales. They are responsible for an area in the north west of the UK, which includes major cities such as Manchester and Liverpool. The Solution Background The Mersey Valley ...


  • SCS - Spiral Channel Screen

    Here we grow again! More new products from Arlat Arlat releases it’s ‘SCS’ Spiral Channel Screen, for use in small channels and Septage Receiving stations. Ready for release this year, Arlat is adding another screen design to their product line up. The SCS is designed for channels that are 2’ (24”) in width or smaller. Arlat has received numerous call from sales representatives and ...

  • Nordre Follo, Oslo, Norway municipal case study

    Challenge In 1993 the Norwegian Pollution Control Authorities instructed Nordre Follo WWTP to reduce their effluent discharge of nitrogen, BOD and phosphorus. The new effluent requirements were as follows: Phosphorus: 90% removal (annual average) Maximum - 0.6 mg/L Average - 0.3 mg/L Nitrogen: 70% removal (annual average) ...

  • Online Process Analyzer Installed at F.J. Horgan WTP to Monitor Chloramination

    Construction was completed on the City of Toronto's F.J. Hor-gan Water Treatment Plant in 1979, more than 60 years after chloramine had first been used to disinfect drinking water in an Ottawa plant. By then there was little debate about the benefits of chloramination and it was incorporated into the new plant's design as part of the disinfection process. Chloramine is more stable than free ...


    By ASA Analytics

  • Petrol and heating oil bioremediation using EU70 (case study)

    As a result of an accident a tanker lost its load of petrol and heating fuel. A large quantity of fuel approximately 2000 litres soaked into the soil. Analyses revealed that the average level of hydrocarbons present was in the order of 0.55 %. The pollution affected an area of 100 m2 and to a depth of 0.6 m. Our goal was to reduce hydrocarbon levels to the lowest possible value in order to ...


    By Bio Systems Europe

  • A sewer ventilation model applying conservation of momentum

    The work presented herein was completed in an effort to characterize the forces influencing ventilation in gravity sewers and to develop a mathematical model, based on conservation of momentum, capable of accounting for friction at the headspace/pipe interface, drag at the air/water interface, and buoyancy caused by air density differences between a sewer headspace and ambient. Experiments were ...


    By IWA Publishing

  • Solidification / Immobilisation of sludge from physical-chemical WWT process

    In 2003 econ received an inquiry from a service company operating an industrial waste water treatment plant. At the end of the physical-chemical WWT process this client generated metal-hydroxide sludge from his chamber filter presses. Originally he discharged the sludge into skips and brought it to a hazardous waste landfill. At this landfill, a solidification process was used to stabilise ...


    By econ industries GmbH

  • Shining a Light on the Food and Beverage Industry

    As published in this months edition of Process & Control, Diane White discusses how UV systems can provide a practical, power saving alternative to pasteurisation in food and beverage production Waterborne micro-organisms are responsible for adverse effects on flavour, colour, odour and shelf life of products and, of course, potential health risks to consumers. A number of emerging ...


    By atg UV Technology

  • Effective fight against unpleasant smell

    As part of a project for the neutralisation of hydrogen sulphide in the sewage system of a medium-size municipality, sera has started over ten innovative dosing systems in September 2008. An effective solution was developed in cooperation with an internationally operating water technology company. A municipality of approximately 50.000 citizens in the German state of North Rhine Westphalia was ...


    By sera GmbH

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