Turbidity Monitoring Articles

350 Results found
  • Category: Monitoring & Testing ×

  • Subcategory: Turbidity Monitoring ×

Pollution of surface runoff from the territory of Brest, Belarus

by IWA Publishing  (Apr. 8, 2015)

The assessment of the influence of urban surface runoff on the quality of river water in the city of Brest was made. Surface runoff was studied in two phases (winter and summer) for the following parameters: pH, total suspended solids (TSS), concentration of chloride, nitrate, phosphate and ammonium ions, total oils. The results show that urban ...

Comparative analysis of groundwater fluorine levels and other characteristics in two areas of Laizhou Bay and its explanation on fluorine enrichment

by IWA Publishing  (Apr. 8, 2015)

The groundwater characteristics in two areas, Tushan town (TS) in Laizhou County and Puzhuang town (PZ) in Changyi County, were compared to discuss the dynamics of fluorine enrichment. Groundwater has average fluorine levels of 2.33 mg/L in PZ town ranging from 0.65 to 9.87 mg/L and of 0.91 mg/L ranging from 0.27 to 1.25 mg/L in TS town. The ...

Method for Computing alkalinity based on Total Inorganic Carbon (TIC) and related data case study

by TOC Systems, Inc.  (Mar. 2, 2015)

Summary Standard Methods (Ref. 1) has a procedure using nomographs for estimating COt concentrations (Method 4500-CO2 B) based on total alkalinity titrations. The method presented here reverses that process by computing alkalinity based on TIC measurements using infrared technology. These two methods are demonstrated to be compatible, which is not ...

Effect of sampling duration on the performance evaluation of a stormwater wetland

by IWA Publishing  (Feb. 26, 2015)

In this study, the effect of sampling duration on the performance estimate for a stormwater wetland over both rainy and dry days was evaluated for the appropriate design of sampling duration. As the cumulative percentage volume (Vp), the ratio of cumulative stormwater volume concerning time to the total stormwater volume, varied between 60 and ...

Resuspended contaminated sediments cause sub‐lethal stress to oysters: A biomarker differentiates TSS and contaminant effects

by John Wiley & Sons, Ltd.  (Feb. 10, 2015)

Resuspended contaminated sediments (RCS) represent an important route of contaminant exposure for aquatic organisms. Filter‐feeding organisms are exposed to contaminants, both in the dissolved (at the gills) and particulate form (in the digestive system), during resuspension events. In addition, these organisms must manage the physical stress ...

Removal of norovirus from water by coagulation, flocculation and sedimentation processes

by IWA Publishing  (Feb. 4, 2015)

In this study, we determined the removal of a prototype human norovirus (Norwalk virus, NV) by bench-scale alum coagulation, flocculation and sedimentation processes using reverse transcriptase polymerase chain reaction (RT-PCR) for norovirus assays. After determining optimum conditions for the coagulation, flocculation and sedimentation ...

Sludge reduction at low ozone doses: predictive effects and full-scale study

by IWA Publishing  (Jan. 30, 2015)

The activated sludge process is the most widely used wastewater treatment. The main drawback of this technology is the excess sludge production (ESP). The ozonation of sludge of the recirculation line is used to reduce the ESP. In this study, ozonation was applied on a fraction of sludge of the recirculation line in a full-scale plant (50,000 ...

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 ...

Study of the sludge reduction in an oxic–settling–anaerobic activated sludge process based on UNITANK

by IWA Publishing  (Jan. 21, 2015)

An oxic–settling–anaerobic process (OSA) can effectively reduce sludge production, but most of the research studies on the OSA process have been either under laboratory test conditions or based on synthetic wastewater, which cannot fully reflect the performance and sludge reduction efficiency in existing OSA process. Thus, aiming ...

Influence of local calibration on the quality of online wet weather discharge monitoring: feedback from five international case studies

by IWA Publishing  (Jan. 21, 2015)

This paper reports about experiences gathered from five online monitoring campaigns in the sewer systems of Berlin (Germany), Graz (Austria), Lyon (France) and Bogota (Colombia) using ultraviolet–visible (UV–VIS) spectrometers and turbidimeters. Online probes are useful for the measurement of highly dynamic processes, e.g. combined ...

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