Settlers Articles

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Oklahoma City Expands Filtration Capability with Aquastore Tank

by CST Industries Inc  (Oct. 9, 2015)

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. ...

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

by IWA Publishing  (Aug. 27, 2015)

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 ...

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

by IWA Publishing  (May 18, 2015)

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 ...

Utility reduces DBPs while controlling algae growth - case study

by Geomembrane Technologies Inc. (GTI)  (Dec. 25, 2014)

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, ...

Lamella settlers for storm water treatment – performance and design recommendations

by IWA Publishing  (Jan. 29, 2014)

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 ...

Performance evaluation of a novel open trickling filter for the post-treatment of anaerobic effluents from small communities

by IWA Publishing  (Jun. 21, 2013)

The objective of the work is to evaluate the performance of an innovative design of a trickling filter for small population sizes, which has been implemented for the post-treatment of sanitary effluent from a UASB (upflow anaerobic sludge blanket) reactor. The unit, named open trickling filter (OTF), operates with no side walls, no perforated ...

Evaluation of DEWATS in Java, Indonesia

by IWA Publishing  (Nov. 2, 2012)

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 ...

Hammer mill possesses qualities of simple structure

by Shanghai Gulin Machinery Co,. Ltd.  (Apr. 26, 2011)

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 ...

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

by IWA Publishing  (Jan. 1, 2011)

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 ...

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

by IWA Publishing  (Sep. 1, 2010)

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, ...

Kimre Inc. LIQUI-NOMIX oil-water separators

by Kimre, Inc.  (Jun. 3, 2009)

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 ...

Inclined Plate Settlers to Treat Stormwater Solids

by Water Environment Federation (WEF)  (Oct. 22, 2006)

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 ...

MIEX Resin Water Treatment Process

by IXOM Watercare  (Jan. 1, 2000)

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 ...

Stormwater and lamella settlers: efficiency and reality

by IWA Publishing  (Feb. 1, 1999)

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 ...

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