Turbidity Monitoring Articles

156 Results found
  • Category: Monitoring & Testing ×

  • Subcategory: Turbidity Monitoring ×

Total photosynthetic pigments in addition to turbidity during the selection of coagulant treatments: a drinking water treatment perspective

by IWA Publishing  (Jan. 23, 2015)

Total photosynthetic pigments (TPP) or chlorophyll-a analysis can be useful in selecting coagulant treatments that will improve phytoplankton removal and reduce treatment costs. The objectives of this study were to compare the efficacy of phytoplankton and turbidity removal when using TPP and turbidity as indicator parameters of appropriate ...

Technical Focus: Turbidity as Control for Primary Settlement

by Partech (Electronics) Ltd.  (Oct. 27, 2014)

Turbidity is a very useful tool when regarding control within the primary settlement stage of water treatment. By utilising turbidity as a control variable during this stage of the process you  can enable a more rapid response to variations in load  and provide early warning  to operators of equipment malfunction before it’s ...

Strategies of coagulant optimisation to improve the removal of turbidity and Ceratium hirundinella cells during conventional drinking water purification

by IWA Publishing  (Oct. 16, 2014)

The dinoflagellate, Ceratium hirundinella (C. hirundinella) cells are known to cause many problems when source water due for purification contains relatively high concentrations. The objective of this study was to investigate strategies for the effective and simultaneous removal of turbidity and C. hirundinella cells using turbidity and total ...

Flocculation performance of magnetic particles with high-turbidity surface water

by IWA Publishing  (Aug. 6, 2014)

The sharp increase in raw-water turbidity following heavy rain presents considerable treatment problems due to low sedimentation rates. The objective of this study was to evaluate the removal of negatively charged suspended solids (SS) in surface water treatment using magnetic particles (nFeO; FeO · Fe2O3) synthesised in our laboratory. ...

Treatment of suspended solids and heavy metals from urban stormwater runoff by a tree box filter

by IWA Publishing  (Jun. 25, 2014)

Particulates, inorganic and toxic constituents are the most common pollutants associated with urban stormwater runoff. Heavy metals such as chromium, nickel, copper, zinc, cadmium and lead are found to be in high concentration on paved roads or parking lots due to vehicle emissions. In order to control the rapid increase of pollutant loads in ...

Dynamics of pollutant discharge in combined sewer systems during rain events: chance or determinism?

by IWA Publishing  (Apr. 24, 2014)

A large database of continuous flow and turbidity measurements cumulating data on hundreds of rain events and dry weather days from two sites in Paris (called Quais and Clichy) and one in Lyon (called Ecully) is presented. This database is used to characterize and compare the behaviour of the three sites at the inter-events scale. The analysis ...

Virus removal efficiency of ceramic water filters: effects of bentonite turbidity

by IWA Publishing  (Apr. 14, 2014)

Ceramic water filters (CWFs) are utilized in many developing countries as point-of-use (POU) water treatment devices, to reduce waterborne pathogens in potable water. Virus removal efficiencies of several CWFs are investigated under various influent conditions using MS2 (ATCC: 15597-B1) as a surrogate phage for human enteric viruses. The ...

Total Dissolved Solids (TDS) Measurement

by IC Controls Ltd.  (Feb. 11, 2014)

Definition Total Dissolved Solids (TDS) is a measure of the sum of all inorganic and organic substances in a liquid in molecular, ionized or micro-granular colloidal suspended form. The solids must be small enough to survive filtration through a sieve the size of two micrometer.  TDS solids are normally found in all freshwater systems. Major ...

Effect of Suspended Uncontaminated Sediment on POP Release

by John Wiley & Sons, Ltd.  (Oct. 15, 2013)

The transport and fate of persistent organic pollutants (POPs) during resuspension events were investigated using a batch mixing technique. This technique allowed for the determination of sorption and desorption kinetics under more realistic mixing conditions than those used in previous investigations. It was demonstrated that sorption follows ...

Survey monitoring results on the reduction of micropollutants, bacteria, bacteriophages and TSS in retention soil filters

by IWA Publishing  (Sep. 16, 2013)

A main source of surface water pollution in Western Europe stems from combined sewer overflow. One of the few technologies available to reduce this pollution is the retention soil filter. In this research project, we evaluated the cleaning efficiency of retention soil filters measuring the concentration ratio of standard wastewater parameters ...

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