settler Articles

  • Stormwater and lamella settlers: efficiency and reality

    ABSTRACTTwo settling devices treating rainwater from urban drainage areas and equipped with secondary sludge treatment were monitored over a period exceeding one year. The two devices differ in their design and in the quantity and quality of effluents received. Full analyses over approximately 30 mean samples of the intake and discharge effluents allowed judgment of the mean efficiency of ...


    By IWA Publishing

  • Mumbai Refinery Mahaul (BPCL) API settlers

    API Settlers DEWACO deployed a complete sludge removal system consisting of: 16 nos. Chain and Flight type sludge and scum collectors and 28 nos. Scum pipes . 3 nos. 21 x 2,5 3 nos. 21 x 2,5 2 nos. 18 x 4,6 3 nos. 18 x 6,1 5 nos. 18 x 6,1 Project completion: 2008 ...


    By Dewaco Ltd

  • Inclined Plate Settlers to Treat Stormwater Solids

    ABSTRACTIt has been well-documented that, in stormwater runoff, many of the problem pollutants are associated with the particulate fraction. Past characterization of urban runoff and source contributions has shown the following: (a) soil disturbance increased the TSS and turbidity in the runoff; and (b) correlations were observed between TSS and particulate runoff concentrations of chromium, ...

  • Lamella settlers for storm water treatment – performance and design recommendations

    Three lamella settlers were monitored over a period of 4 years. The main objective was to determine removal efficiencies for total suspended solids and associated pollutants. For this purpose a new sampling method based on large volume solid samplers was developed allowing a detailed analysis of solids. With regard to total suspended solids the average removal efficiency of the plants range from ...


    By IWA Publishing

  • Enhancement of settling tank capacity using a new type of tube settler

    The effectiveness of a newly developed lamellar settler was confirmed by onsite experiments. The device had inclined parallel plates arranged in a vertical direction in a settling tank. This vertical arrangement method enables many more plates to be set compared to the conventional horizontal arrangement. As an original and distinctive innovation, both the right and left edges of the plates were ...


    By IWA Publishing

  • Modelling and characterization of primary settlers in view of whole plant and resource recovery modelling

    Characterization and modelling of primary settlers have been neglected pretty much to date. However, whole plant and resource recovery modelling requires primary settler model development, as current models lack detail in describing the dynamics and the diversity of the removal process for different particulate fractions. This paper focuses on the improved modelling and experimental ...


    By IWA Publishing

  • Okatie, South Carolina - Tube Settlers Installations Application - Case Study

    Application The Beaufort-Jasper Water & Sewer Authority required a dual solution for particle settling and sludge removal. Brentwood was able to offer its tube settlers for increased settling capacity and the SedVac system to remove sludge from the basin floor upon settlement. Together, the two systems maximize performance through efficient sludge management. ...


    By Brentwood Industries, Inc.

  • Saskatoon, Saskatchewan - Tube Settlers Installations Application - Case Study

    Application The Saskatoon project, one of Brentwood’s largest tube settler installations to date, posed an interesting challenge. Being located in northern Canada, there was concern regarding the impact the water temperature might have on the performance of the tube settlers, seeing as it enters the plant barely above freezing. A successful study was completed in 2012 and demonstrated ...


    By Brentwood Industries, Inc.

  • Impact on sludge inventory and control strategies using the benchmark simulation model no. 1 with the Bürger-Diehl settler model

    An improved one-dimensional (1-D) model for the secondary clarifier, i.e. the Bürger-Diehl model, was recently presented. The decisive difference to traditional layer models is that every detail of the implementation is in accordance with the theory of partial differential equations. The Bürger-Diehl model allows accounting for hindered and compressive settling as well as inlet ...


    By IWA Publishing

  • Influence of density flow on treated water turbidity in a sedimentation basin with inclined plate settler

    The removal efficiency of particulate matter from a sedimentation basin with an inclined plate settler in drinking water treatment facilities is sometimes reduced by density flow caused by temperature increases in the raw water. In this study, the structure of the density flow and its prevention are investigated by means of three-dimensional computational fluid dynamics (CFD). The results of ...


    By IWA Publishing

  • Shall we upgrade one-dimensional secondary settler models used in WWTP simulators? – An assessment of model structure uncertainty and its propagation

    In WWTP models, the accurate assessment of solids inventory in bioreactors equipped with solid-liquid separators, mostly described using one-dimensional (1-D) secondary settling tank (SST) models, is the most fundamental requirement of any calibration procedure. Scientific knowledge on characterising particulate organics in wastewater and on bacteria growth is well-established, whereas 1-D SST ...


    By IWA Publishing

  • Kimre Inc. LIQUI-NOMIX oil-water separators

    Liquid - liquid mixtures of contaminant oils (or organic solvents) in water (or aqueous solvents) can be separated economically and efficiently with gravity settlers or decanters. To achieve high efficiency separations, the settling unit must include a coalescing stage for removal of small droplets of oil. Kimre Inc.'s LIQUI-NOMIX coalescers provide high efficiency polishing of liquid streams and ...


    By Kimre, Inc.

  • MIEX Resin Water Treatment Process

    The MIEX®1 Resin process was developed in Australia for the removal of natural organic material in water treatment. This novel, truly continuous ion exchange process, is based on the MIEX® resin – a micro size, macroporous, strong base, magnetic ion exchange resin. The resin was specially developed for this application and optimised for reversible removal of negatively charged organic ions. The ...


    By IXOM Watercare

  • Evaluation of DEWATS in Java, Indonesia

    Under the Indonesian PPSP (Accelerated Sanitation Development for Human Settlements Program) thousands of new DEWATS (Decentralized Wastewater Treatment Systems) may be realized in the coming five years. Taking the massive scale of planned implementation into consideration an evaluation of the technical and financial-economic aspects and users' involvement for three different types of ...


    By IWA Publishing

  • Settlement Dynamics of the Encrusting Epibenthic Macrofauna in Two Creeks of the Caeté Mangrove Estuary (North Brazil)

    Abstract  The epibenthic encrusting fauna of 2 creeks of the Caeté mangrove estuary, northern Brazil, was studied over a 13 month period using collectors fixed at 2.5 and 3.5 m above the creek bottom and in which upper and lower sides of ceramic and wooden panels were used as settlement substrates. The number of individuals of the most abundant organisms (barnacles, oysters and mussels) ...


  • MOL oil & gas refinery

    MOL Hungarian Oil & Gas Plc is the national Oil & Gas company for Hungary, it forms part of the large MOL Group and is by far the largest, in terms of turnover for the Hungarian sector as a whole. The project is a first for the region. API Settlers DEWACO supplied a fully functional sludge removal system comprising of: 6 nos. Chain & Flight type sludge and scum ...


    By Dewaco Ltd

  • Utility reduces DBPs while controlling algae growth - case study

    In the fall of 2004, the Operations Division of the Santa Clara Valley Water District (the District) started a program called the Operations Council on Excellence. The program was created to support the District’s vision of a cleaner, greener, and leaner operation. At the time, two of the District’s three water treatment plants, Penitencia and Santa Teresa, were undergoing ...

  • Oklahoma City Expands Filtration Capability with Aquastore Tank

    Things have come a long way since the Land Run of 1889, when settlers got their water from three wells: at the train station, south of the train station and in the vicinity of Santa Fe and Main. Today, the city’s water comes from a network of six man-made lakes—much of it fed by the North Canadian River and from southeastern Oklahoma. Out with the ...


    By CST Industries Inc

  • Hammer mill possesses qualities of simple structure

    Although southwestern Wisconsin is best known today for its rich farmlands, place names such as Mineral Point and New Diggings evoke an earlier time when local mines produced much of the nation’s lead. In the early nineteenth century, Wisconsin lead mining was more promising and attractive to ...


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