sewage sludge system News

  • Implications of sewage sludge

    Sewage sludge has been widely applied to agricultural lands to enhance soil fertility due to its high organic matter and nutrient content. It has been considered as an economically and environmentally sound disposal alternative to landfills and incineration. However, one of the concerns of continued application of sewage sludge is the increased amounts of heavy metals deposited into the soil. ...

  • Supercritical water oxidation of sewage sludge

    ABSTRACT Supercritical water oxidation (SCWO) is an innovative and effective destruction method for organic wastewater and sludge. Several tests of the destruction of sewage sludge by SCWO have been done at two state of the art pilot plants. These units have capacities of 250 kg/h and 1100 kg/h, respectively. The test results show that the technology easily destroys the organic ...


    By SCFI Group Limited

  • Solar sewage sludge drying in Europe, Turkey and Australia

    Solar Sewag Sludge Drying Internationally Acceptedist Anlagenbau GmbH in Kandern Germany developed a sludge solar drying system and is marketing it since 1994 under the name of WendeWolf. The sludge is spread out in greenhouses and regularely turned and aerated. During the drying cycle, the sludge is automaticalle conveyed from the entrance to the exit of the drying bed. After several years of ...


    By IST-Anlagenbau GmbH

  • The Flottweg Decanter Centrifuge C2E – Top Product of the Month in September

    Prozesstechnik Online named a Top Product of the Month for the ninth time this year. In September, our Decanter C2E was the clear winner. This centrifuge is specially designed for sludge dewatering at small sewage treatment plants. Our C2E puts the know-how gained from our big environmental decanters into a compact package. This ...


    By Flottweg SE

  • ETG 6500 at the sewage and sludge treatment plant Acea Roma Est

    Start-up & Commissioning of the continuous analysis system ETG 6500 at the plant Acea Roma Est sewage and sludge treatment. This is the anaerobic digestion Revamping for the recovery of the biogas produced. The analysis system ETG 6500 performs continuous monitoring of the amount of methane produced during digestion in addition to measuring the concentration of Oxygen, Carbon Dioxide and ...


    By ETG Risorse e Tecnologia

  • IFAT CHINA 2008 - Solutions for handling mountains of sewage sludge

    China is facing huge problems because of an ever growing quantity of sewage sludge – the country urgently needs practical, ecological and economic solutions to deal with the situation. China is therefore looking abroad to see how foreign know-how and efficient technologies can be used. All of which will be showcased at the environmental trade fair IFAT CHINA, which takes place in Shanghai from 23 ...


    By Messe München GmbH

  • IFAT CHINA + EPTEE + CWS 2010: What to do with sewage sludge?

    In recent years China has developed into one of the world’s biggest markets for sewage treatment. According to the Chinese Ministry of Environmental Protection, over 20 billion euros was invested by the end of 2008 in around 1,550 sewage plants in the People's Republic. Together these facilities process 86 million tons of sewage each day. 'Despite the high level of expenditure on cleaning the ...


    By Messe München GmbH

  • City of farmington, MO., to pay $61,566 civil penalty for issues related to sewage sludge applications, ammonia discharges

    The City of Farmington, Mo., has agreed to pay a $61,566 civil penalty to the United States to settle violations of its wastewater discharge permits and the Clean Water Act related to nickel levels in sewage sludge that was applied to farms in four area counties, and ammonia levels in wastewater discharged from the city’s treatment plants. Farmington’s violations of its National ...

  • Great Lakes Fouled by Raw Sewage

    TORONTO, Ontario, Canada, (ENS) - Detroit, Michigan is at the bottom of the class, performing the worst of 20 cities graded by a Canadian environmental group in a Report Card on how well they manage their sewage. Sierra Legal released its first Great Lakes Sewage Report Card today, an investigative report that analyzes the performance of 20 cities in the Great Lakes ...

  • Using ozone to reduce sludge

    Untitled Document An excess of sludge in a sewage treatment plant is not a new problem. For a long time, “end of pipe” ...


  • Pre-filtering saves 50% investment in sewage plant

    The Saulekilen Sewage Plant in Arendal, south of Norway, increases its capacity from 45000 p.e. to 80000 p.e. with a new process design. By using a first filter stage combined with compact biofilters, the new plant fits inside the old one. This reduces investments by NOK 25 mill. (USD 4 mill.), which is approximately half the cost of a conventional treatment plant. Filters at entrance ...


    By Biowater Technology

  • Sewage Treatment Plant in Vienna Decides on Flottweg Decanters

    As part of a Europe-wide call for tenders, Flottweg was awarded a contract from the ebswien main sewage treatment facility for five model Z92 decanter centrifuges. The total order volume is over three million Euros. The main sewage treatment plant in Vienna will be equipped with five Flottweg Decanters. "E_OS – Energie_Optimierung-Schlammbehandlung" (energy optimization and sludge ...


    By Flottweg SE

  • New addition to Sludge Screen range

    Following the launch of the S:Max sludge screen to the UK sewage and wastewater treatment market in 2010 CDEnviro have announced an expansion of the range. The new S:Max SRU10 is designed for operators requiring smaller capacities than that offered by the SRU25 model. “The SRU25 was initially designed for introduction to major sludge processing sites such as the one at Minworth Sewage ...


    By CDEnviro

  • NYC closer to turning sewage into energy - by Leon Kaye

    New York City is the only city in the US that never sleeps.  It is also one city that often smells, especially in the summer.  One reason is the city’s aging sewage system, to which the city’s 8 million residents contribute 1.3 billion gallons of wastewater daily. All that wastewater goes through several processes ...


    By 3BL Media

  • Don`t waste sewage - it`s a resource

    The way we treat sewage needs to undergo a revolution on the same scale as we have seen attitudes change to household rubbish and industrial waste. That was the core message of an event hosted by consultants Aqua Enviro this week. While the value of most other resources is widely recognised, we tend to have a devil-may-care attitude to water consumption in the UK, perhaps in part due to the ...

  • Thicker sludge saves time and money

    Recent improvements in pump technology prompted Severn Trent Water (STW) to initiate a de-sludging trial to reduce costs and energy consumption by producing thicker sludge in the Primary Settlement Tank (PST). Advanced monitoring instrumentation from HACH LANGE played a key role in the trial which, nine months after it began, has been heralded a success. STW's Mark Bryan summarises the objective ...


  • New sewage sampler enables real-time control

    HACH LANGE has launched an innovative new wastewater sampling system, which will open up a new world of opportunity by enabling water companies to continuously monitor sewage at the plant inlet. In the past, it has been almost impossible to monitor influent because of the physical and biological challenges that sewage presents – ragging, biofouling etc. However, following trials at a ...


  • SFPUC demonstrates innovative technology that recycles harmful sewage

    A pilot project at The San Francisco Public Utilities Commission’s (SFPUC) Southeast Wastewater Treatment Plant is the first plant in California to demonstrate a new technology that removes phosphorus and other nutrients from wastewater and recycles them into environmentally-safe commercial fertilizer. The technology was developed by Ostara Nutrient Recovery Technologies Inc. of Vancouver, ...

  • New sludge screen launched to the UK industry

    The new SMax from CDE Global is the latest addition to the company’s product offering through their CDEnviro division. CDEnviro offer a range of products to the sewage and waste water treatment sectors with a focus on improving screening efficiencies and reducing waste volumes. The SMax unit is designed to handle a variety of materials including sewage, , digested sludge and imported sludge ...


    By CDEnviro

  • Thermophilic sludge digestion pilot for Durban (SA)

    Thermophilic digestion of sewage sludge can increase the energy recovery at waste water treatment works (WWTW) to reach energy self-sufficiency. By increasing the digestion temperature to 52 – 55°C, higher efficiencies can be achieved. For a utility, this translates in potential additional income from electricity production by a CHP, lower polymer consumption and lower sludge disposal ...


    By Colsen International b.v.

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