sewage treatment process Articles

  • Nutrient removal for sewage treatment

    Addition of a tertiary process provides one means of upgrading a sewage treatment plant's performance. Hans Wouters looks how this can be done using enhanced ...


    By Paques B.V.

  • Sewage treatment plant

    BONO ARTES has developed an activated sludge process called BIOCLAR, which is a great technological step forwards compared to conventional methods. A large part of civil and industrial installations, especially in developing countries, is located in remote and secluded areas where there is no possibility for connection to a public sewer. On the other hand, the minimisation of the impact on the ...


    By Artes Ingegneria SpA

  • The Rhizopur® process ten years on: a green solution for sewage treatment in small communities

    Ten years ago the Rhizopur® process was conceived in order to treat sewage from small towns. Since 1999 when the first Rhizopur® plant was commissioned, the number of facilities has been growing steadily and today there are more than fifty Rhizopur® facilities in France. This process combines three existing technologies, i.e. biofilm, infiltration/percolation and mineralisation in constructed ...


    By IWA Publishing

  • The Municipal Water & Sewage Treatment Sector

    The best reason for the use of Albin Pump Hose pumps in this industry is the low maintenance of the pump. This industry readily accepts an average hose life of 1.500 - 3.000 hours in continuous duty and this hose life will provide much lower maintenance costs and repair time than with other pumps. Basic Pump Requirements For operation in an automatic system the following would ...


    By Albin Pump SAS

  • Sewage treatment plant case study

    Contributing to snowy regions in which the transportation of sludge is difficult In municipal wastewater treatment plant in snowy regions, snow-bound in winter, taking dewatered cake out regularly is sometimes difficult. Two problems were also presented in this municipal wastewater treatment plant, i.e., the difficulty of taking sludge out using carriers in winter, which had been ...


    By AMCON Inc.

  • Enhanced physicochemical-biological sewage treatment process in cold regions

    Biological treatment processes give relatively poor pollutant removal efficiencies in cold regions because microbial activity is inhibited at low temperatures. We developed an enhanced physicochemical-biological wastewater treatment process that involves micro-membrane filtration, anaerobic biofilter, and aerobic biofilter to improve the pollutant removal efficiencies that can be achieved under ...


    By IWA Publishing

  • Kemicond - Improvement of the Dewaterability of Sewage Sludge by Chemical Treatment

    The Kemicond process for sludge conditioning consists of a chemical treatment with sulphuric acid and hydrogen peroxide at a pH-value around 4 followed by a dewatering unit. It is shown that through the chemical treatment of ferruginous digested sludge the dewaterability, measured in laboratory experiments as CST-value, can be improved. From the results of the experiments, it is concluded that ...

  • The Method Found In A Sewage Sludge Carbonization Treatment Plant

    Have you ever passes a wastewater treatment plant and wondered exactly how the process works? Most localities have a minimum of one sewage sludge carbonization plant. These plants are the places where municipal sewage sludge is treated. This process is split into three stages. Each stage was created to further decompose and disintegrate wastewater sludge. ...


    By Beston Group

  • Gatineau Sewage Treatment Plant, Gatineau, Quebec, Canada

    Project No. 1 Industrial Boiler Application A FLU-ACE waste heat recovery system installed to process all flue gases from three boilers. The system recovers up to 3.5 mmBTU/h of waste heat which is re-used for heating the digester sludge. The main fuel for the boilers is recycled methane based sewage gas generated from the plant’s anaerobic digesters. 'The installation ...

  • Sewage/effluent treatment by growth of diatom algae

    A new process to treat sewage/e²uents, by using Nualgi, a patented product that aids the growth of diatom algae in the waste water is described. The growing diatom algae absorb nutrients and carbon dioxide from the water and produce oxygen by photosynthesis at micro plant level. The oxygen released during photosynthesis helps aerobic bacteria in breaking down the organics and converting the ...


    By Nualgi

  • Ozone treatment of organic micro-pollutants in sewage sludge

    Organic micro-pollutants accumulate to a certain extent in sewage sludge and are therefore ecologically relevant if the sludge is to be reused in both agriculture and landscaping applications. This paper describes the degradation of endocrine-disrupting compounds and other micro-contaminants by means of ozone and ultrasonic treatment. One of the findings is that, as expected, aromatic compounds ...


    By IWA Publishing

  • An operating tale from næstved sewage treatment plant

    Conversion from a two-stage to a one -stage plant Næstved Central Sewage Treatment Plant was built as a Bio DeNiPho plant to treat 89,000 PE and the load is about 45,000 PE. The results of analyses of the micro pollutants indicated already in 1998 that we would face problems with export to the agriculture segment after 1 July 2000. At the same time the industry started saying that the micro ...


    By Cambi Group AS

  • Temporary sewage treatment plant for Scottish water at Glenluce

    WPL have a range of portable sewage treatment solutions that can be utilised to replace or augment existing sewage treatment plant. The plant range can be hired or purchased. WPL have considered each stage of the sewage treatment process within their portable range. Primary, secondary and tertiary options are available to meet stringent consent conditions. Background In ...


    By WPL Ltd

  • Toluene in sewage and sludge in wastewater treatment plants

    Toluene is a compound that often occurs in municipal wastewater ranging from detectable levels up to 237 μg/L. Before the year 2000, the presence of the aromatic hydrocarbons was assigned only to external sources. The Enhanced Biological Nutrients Removal Processes (EBNRP) work according to many different schemes and technologies. For high-efficiency biological denitrification and ...


    By IWA Publishing

  • Energy utilization in sewage treatment – a review with comparisons

    In recent years, the operating cost of sewage treatment plants (STPs) in some parts of the world has been rising due to increases in the cost of energy. STPs have focused on energy reduction and recovery from treatment processes in order to lower energy consumption. The development involves the improvement of capital set-up for treatment plants in terms of equipment upgrading/plant sizing as ...


    By IWA Publishing

  • Continuous Pyrolysis Facility for Sewage Sludge Treatment

    The amount of sewage sludge is catastrophically increased in the latest few decades due to functioning of the municipal sewage treatment facilities. Dry sewage sludge contains 70-90% of the organic substances and 10-30% of the inorganic substances, which are dangerous for human health in case of inappropriate utilization. The continuous pyrolysis technology presents the unique sewage sludge ...


    By Polvax-Ukraine

  • Dogs put trust in onsite sewage treatment

    One of the obvious challenges of running Dogs Trust rehoming centres is the need to dispose of a significant quantity of hazardous waste. All locations not connected to mains drainage have to be served by reliable on site treatment systems and on completion of the latest installation at Salisbury a total of five WPL systems will be in operation around the UK. The charity cares for some 16,000 ...


    By WPL Ltd

  • Activated carbon fiber felt and polymer fiber as biofilm carrier in a modified University of Cape Town process for sewage treatment

    Biofilms on fiber-based carriers have attracted much concern in wastewater treatment processes recently. In this study: (1) a novel sandwich structure fiber-based biofilm carrier was produced, which consisted of an inner core composed of polyacrylonitrile-based activated carbon fiber felt (PAN-ACFF) and an outer coat made of polyester reticular cloth with polypropylene fiber loops; (2) the novel ...


    By IWA Publishing

  • Pilot scale evaluation of SANI® process for sludge minimization and greenhouse gas reduction in saline sewage treatment

    This study reports on a pilot trial of the SANI® process (Sulfate reduction, Autotrophic denitrification and Nitrification Integrated process) in Hong Kong. A pilot-scale SANI plant treating saline sewage at 10 m3/day was scaled-up from a lab-scale system treating synthetic saline sewage. The plant consisted of a sulfate reduction up-flow sludge bed (SRUSB), an anoxic bioreactor (BAR1) for ...


    By IWA Publishing

  • Analysis of Sewage and Sewage Sludge by Simultaneous ICP Spectroscopy

    In recent years, the development and expansion of sewage treatment facilities has resulted in increased amounts of sludge which is generated in the treatment process, and which has presented a problem due to processing of the sludge itself. Sludge is normally incinerated or solidified and then disposed of in landfills or recycled for use in construction materials such as concrete or ...

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