aerobic sewage treatment Articles

  • 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 ...

  • Southeast Georgia sewage treatment

    Problem: A WWTP in Southeast Georgia located on a resort island has a 3 million gallon per day flow. The WWTP was experiencing major odor problems at the head of the plant, as well as poor digestion and settling of bio-solids in the SBR’s and aerobic digesters. The odors were primarily H2S and were the source of numerous complaints from the residents living in the vicinity of the WWTP. The plant ...


    By BluePlanet Labs

  • Aerobic wastewater treatment processes history and development synopsis

    This book is an overview of the development of aerobic waste water treatment and influences which shaped this development. The historical development of sewage treatment and the subsequent emergence of aerobic biological treatment methods is investigated from the early nineteenth century to the present day. In addition, the earlier historical background, up to the late ...


    By IWA Publishing

  • Aerobic wastewater treatment processes history and development synopsis

    A Synopsis by the Author This book is an overview of the development of aerobic waste water treatment and influences which shaped this development.   The historical development of sewage treatment and the subsequent emergence of aerobic biological treatment methods is investigated from the early nineteenth century to the present day.  In addition, the earlier ...


    By IWA Publishing

  • 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

  • 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

  • The role of respirometry in maximising aerobic treatment plant efficiency

    Wastewater treatment plants are coming under increasing pressure to increase their efficiency of operation. There are two objectives in this. The first is to reduce the cost of treatment. The second is a response to new legislation aimed at reducing the carryover of toxic materials to receiving waters. In order to achieve this, it is necessary to focus on the pivotal role of bacterial respiration ...

  • 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

  • Transformation of Estrogens in Nitrifying Activated Sludge under Aerobic and Alternating Anoxic/Aerobic Conditions

    Natural and synthetic estrogens are present in municipal wastewater treatment plants effluents. Biodegradation of estrogens, including the natural estrogens estrone (E1) and 17-beta-estradiol (E2), as well as the synthetic 17-alpha-ethinylestradiol (EE2), can occur during sewage treatment, particularly in activated sludge. Investigations of removal of estrogens in wastewater treatment plants, as ...

  • 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

  • Sewage Treatment - Klargester is the market leader for small and medium-sized domestic treatment plant and waste water treatment systems in the UK

    Sewage treatment plant operate by providing an environment in which aerobic bacteria are cultured. These bacteria survive by using biological matter in the sewage as a food source. To provide optimum treatment the bacteria need free access to oxygen and immersion in the sewage effluent. The majority of package plant work by providing a fixed medium that the bacteria adhere to, and a means of ...


    By Kingspan Water & Energy

  • Reduction in greenhouse gas emissions from sewage sludge aerobic compost in China

    Sewage sludge is an important contributor to greenhouse gas (GHG) emissions and the carbon budget of organic solid waste treatment and disposal. In this case study, total GHG emissions from an auto-control sludge compost system, including direct and indirect emissions and replaceable reduction due to sludge compost being reused as fertilizer, were quantified. The results indicated that no ...


    By IWA Publishing

  • Waste Water Treatment Processes Explained

    SUNCOAST WASTE WATER MANAGEMENT  presents  AEROBIC -verses- ANAEROBIC THE AEROBIC PROCESS There are two basic types of sewerage treatment processes, which are the Aerobic process and the Anaerobic process. Aerobic means with air or oxygen and Anaerobic (septic) means without air or oxygen. Aerobic bacteria are a higher life form and when digesting waste are utilising dissolved oxygen or air in ...

  • Dissolved-air flotation associated with an anaerobic reactor, as applied to sewage treatment

    This paper presents the results of a study performed with a pilot sewage treatment plant consisting of an aerobic reactor followed by a flotation unit. To coagulate the anaerobic effluent, different ferric chloride dosages were applied by adopting two approaches: applying constant dosages during the essay and varying the dosages according to the anaerobic effluent turbidity. To obtain more than ...


    By Inderscience Publishers

  • Occurrence and elimination of antibiotics in three sewage treatment plants with different treatment technologies in Urumqi and Shihezi, Xinjiang

    Fourteen antibiotics, including five quinolones (QNs), five sulfonamides (SAs), and four tetracyclines (TCs), were selected to investigate their occurrence and elimination in three sewage treatment plants (STPs) by employing different treatment technologies in Urumqi (two STPs) and Shihezi (one STP), China. The STP in Shihezi was chosen as representative to investigate the distribution of ...


    By IWA Publishing

  • The use of sewage sludge compost for improving reedbeds performance

    In a wastewater of medium strength, about 75 % of the suspended solids and 40 % of the filterable solids are organic in nature. The parameter used for measuring the strength and the quantity of the organic substances in the wastewater is the Chemical Oxygen Demand (COD) (Aggelakis and Tchobanoglous, 1995; Tchobanoglous and Burton, 1991). Degradable organic matter in wastewater, whether soluble or ...


    By ORBIT e.V.

  • Survey of the Home Sewage Disposal Systems in Northeast Ohio

    This article reports on failure rates in onsite sewage treatment systems (STS) that were found as part of a comprehensive seven-county survey that was performed under the auspices of the Northeast Ohio Areawide Coordinating Agency (NOACA) during the summer of 2000. The goal was to determine the percentage of onsite, individual home wastewater systems that were “failing.” A system was identified ...

  • Pollutant removal and membrane fouling in an anaerobic submerged membrane bioreactor for real sewage treatment

    Real sewage was continuously treated by a laboratory-scale anaerobic submerged membrane bioreactor (AnSMBR) for over 160 days. Results showed that around 90% of chemical oxygen demand, and 99% of turbidity and total suspended solids in the sewage could be removed by the AnSMBR system. Membrane flux sustained at 11 L/(m2 h) was realized with biogas sparging. Small flocs from sludge ...


    By IWA Publishing

  • What is biological wastewater treatment?

    Biological wastewater treatment harnesses the action of bacteria and other microorganisms to clean water Biological wastewater treatment is a process that seems simple on the surface since it uses natural processes to help with the decomposition of organic substances, but in fact, it’s a complex, not completely understood process at the intersection of biology and ...


    By Fluence Corporation

  • Case study - Vestfjorden Sewage Plant (Veas)

    In Norway’s largest sewage plant, Veas in Oslo, Filtralite* has proven extremely durable as both bio substrate and sludge filtering medium. After 25 years of operation with daily back flushing there is no need for replenishing. A river of sewage of maximum 11 m3 second runs in a 42 kilometre underground tunnel, collecting sewage from Oslo centre to Slemmestad in ...


    By Filtralite - Leca Norge As

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