The variation of mass and disinfection by-product formation potential of dissolved organic matter fractions along a conventional surface water treatment plant

2000 ◽  
Vol 74 (3) ◽  
pp. 133-147 ◽  
Author(s):  
Taha F Marhaba ◽  
Doanh Van
Keyword(s):  
Organic Matter ◽  
Water Treatment ◽  
Surface Water ◽  
Dissolved Organic Matter ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Product Formation ◽  
Formation Potential ◽  
Surface Water Treatment ◽  
Organic Matter Fractions

Selection of the surface water treatment technology – a full-scale technological investigation

2014 ◽  
Vol 71 (4) ◽  
pp. 638-644 ◽  
Author(s):  
Alina Pruss
Keyword(s):  
Water Treatment ◽  
Surface Water ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Full Scale ◽  
Treatment Technology ◽  
Surface Water Treatment ◽  
Second Stage ◽  
Third Stage ◽  
Water Treatment Technology

A technological investigation was carried out over a period of 2 years to evaluate surface water treatment technology. The study was performed in Poland, in three stages. From November 2011 to July 2012, for the first stage, flow tests with a capacity of 0.1–1.5 m3/h were performed simultaneously in three types of technical installations differing by coagulation modules. The outcome of the first stage was the choice of the technology for further investigation. The second stage was performed between September 2012 and March 2013 on a full-scale water treatment plant. Three large technical installations, operated in parallel, were analysed: coagulation with sludge flotation, micro-sand ballasted coagulation with sedimentation, coagulation with sedimentation and sludge recirculation. The capacity of the installations ranged from 10 to 40 m3/h. The third stage was also performed in a full-scale water treatment plant and was aimed at optimising the selected technology. This article presents the results of the second stage of the full-scale investigation. The critical treatment process, for the analysed water, was the coagulation in an acidic environment (6.5 < pH < 7.0) carried out in a system with rapid mixing, a flocculation chamber, preliminary separation of coagulation products, and removal of residual suspended solids through filtration.

scholarly journals Surface water treatment by UV/H2O2 with subsequent soil aquifer treatment: impact on micropollutants, dissolved organic matter and biological activity

2019 ◽  
Vol 5 (10) ◽  
pp. 1709-1722 ◽  
Author(s):  
Robin Wünsch ◽  
Julia Plattner ◽  
David Cayon ◽  
Fabienne Eugster ◽  
Jens Gebhardt ◽  
...  
Keyword(s):  
Organic Matter ◽  
Biological Activity ◽  
Water Treatment ◽  
Surface Water ◽  
Dissolved Organic Matter ◽  
Microbial Activity ◽  
Soil Aquifer Treatment ◽  
Organic Micropollutants ◽  
Total Removal ◽  
Surface Water Treatment

UV/H2O2 treatment of sand-filtered surface water before soil aquifer treatment increases the total removal of organic micropollutants and has an impact on microbial activity without pronounced effects on dissolved organic matter removal.

Removal of cyanobacteria, cyanotoxins, heterotrophic bacteria and endotoxins at an operating surface water treatment plant

2006 ◽  
Vol 54 (3) ◽  
pp. 23-28 ◽  
Author(s):  
J. Rapala ◽  
M. Niemelä ◽  
K.A. Berg ◽  
L. Lepistö ◽  
K. Lahti
Keyword(s):  
Water Treatment ◽  
Surface Water ◽  
Treatment Process ◽  
Heterotrophic Bacteria ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Bacterial Isolates ◽  
Sand Filtration ◽  
Surface Water Treatment ◽  
Guide Value

The removal of cyanobacteria, hepatotoxins produced by them (microcystins), phytoplankton, heterotrophic bacteria and endotoxins were monitored at a surface water treatment plant with coagulation, clarification, sand filtration, ozonation, slow sand filtration and chlorination as the treatment process. Coagulation–sand filtration reduced microcystins by 1.2–2.4, and endotoxins by 0.72–2.0 log10 units. Ozonation effectively removed the residual microcystins. The treatment process reduced phytoplankton biomass by 2.2–4.6 and heterotrophic bacteria by 2.0–5.0 log10 units. In treated water, the concentration of microcystins never exceeded the WHO guide value (1 μg/L), but picoplankton and monad cells were often detected in high numbers. The heterotrophic bacterial isolates from the treated waters belonged to genera Sphingomonas, Pseudomonas, Bacillus, Herbaspirillum and Bosea.

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