Class AA Surface Water: MBR Treatment Plant Design and Construction Experience at Concrete, Washington

The Llobregat is a 156 km long river, which supplies 35% of the Barcelona's drinking water needs from the Sant Joan Despí Water Treatment Plant. Since the establishment of the Salt Mine Works in the Llobregat basin in 1923, a progressive salinization of the water sources has been recorded. The operation of the Brine Collector, as a public work carried out by Aigües de Barcelona (AGBAR), started in 1989; it enabled a very significant improvement in the quality of the surface water used for drinking-water production.

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The Efficiency of Microstrainers Filtration in the Process of Removing Phytoplankton with Special Consideration of Cyanobacteria

Toxins ◽

10.3390/toxins11050285 ◽

2019 ◽

Vol 11 (5) ◽

pp. 285 ◽

Cited By ~ 3

Author(s):

Wanda Czyżewska ◽

Marlena Piontek

Keyword(s):

Water Treatment ◽

Surface Water ◽

Treatment Plant ◽

Water Treatment Plant ◽

Filtration Process ◽

Particle Filtration ◽

Qualitative And Quantitative ◽

Water Treatment Process ◽

Adverse Impacts ◽

Quantitative Monitoring

The research presented in this manuscript concerns the evaluation of the effectiveness of microstrainers, which are designed to reduce the amount of plankton in treated surface water. The efficiency of microstrainer filtration analysis is very important for the proper course of the water-treatment process not only in the Water-Treatment Plant (WTP) in Zielona Góra (central western Poland) but also in other WTPs around the world. The qualitative and quantitative monitoring of the abundance of plankton including cyanobacteria during the particle-filtration process allows not only for the assessment of the potential cyanotoxic risk in surface water providing a source of drinking water, but also allows the evaluation of the action and the prevention of adverse impacts of microstrainers. Over four years of research, it was observed that the largest amount of cyanobacteria before microstrainer filtration took place in May. The dominant species was Limnothrix redeckei. The microstrainer removal of plankton and cyanobacteria was statistically significant. The quantity of removed plankton increased with its increasing content in raw water. The particle-filtration process, by reducing the amount of cyanobacteria, contributes to a decrease in intracellular microcystins.

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Optimal Water Treatment Plant Design

Journal of Environmental Engineering ◽

10.1061/(asce)0733-9372(1987)113:3(567) ◽

1987 ◽

Vol 113 (3) ◽

pp. 567-584 ◽

Cited By ~ 28

Author(s):

Mark R. Wiesner ◽

Charles R. O'Melia ◽

Jared L. Cohon

Keyword(s):

Water Treatment ◽

Treatment Plant ◽

Water Treatment Plant ◽

Plant Design

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Flow and Load Variations in Treatment Plant Design

Journal of the Environmental Engineering Division ◽

10.1061/jeegav.0000750 ◽

1978 ◽

Vol 104 (2) ◽

pp. 289-303

Author(s):

James C. Young ◽

John L. Cleasby ◽

E. Robert Baumann

Keyword(s):

Treatment Plant ◽

Plant Design ◽

Load Variations

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Influence of wastewater treatment plant discharges on microplastic concentrations in surface water

Chemosphere ◽

10.1016/j.chemosphere.2016.07.083 ◽

2016 ◽

Vol 162 ◽

pp. 277-284 ◽

Cited By ~ 122

Author(s):

Shirin Estahbanati ◽

N.L. Fahrenfeld

Keyword(s):

Wastewater Treatment ◽

Surface Water ◽

Wastewater Treatment Plant ◽

Treatment Plant

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Abundance and distribution of microplastics in water and sediment of Baiyangdian Lake, Northern China

10.21203/rs.3.rs-1110826/v1 ◽

2021 ◽

Author(s):

Yanyan Fang

Keyword(s):

Surface Water ◽

Sewage Treatment ◽

Pollution Abatement ◽

Sewage Treatment Plant ◽

Treatment Plant ◽

Northern China ◽

Baiyangdian Lake ◽

Treated Effluent ◽

Transfer Station ◽

Main Components

Abstract Microplastics (MPs) have been found in all environment matrices and have become an issue of concern worldwide. In this study, Baiyangdian Lake in Northern China was investigated for the presence of MPs (0.45 µm–5 mm) in sediment and at different water depths. MPs were found at 1,000–20,000 pieces/m3 (average 9,595) in water and at 400–2,200 pieces/kg (average 1,023) in sediment. Since the implementation of pollution abatement measures, visible MPs have been nearly eliminated; the MPs found in this study were mainly in the micrometer range, with no more than 3–5 pieces greater than 1 mm per sample. The main forms of MPs were fibrous and fragmented, and the main components were polyamide, polyethylene, and polypropylene. MPs found in water near a garbage transfer station showed the following abundance of MPs: surface water < middle water < bottom water. The sediment contained a higher amount of MP fragments, indicating that the historical transfer and disposal of garbage was a main source of plastic deposition in this area. There was a high content of fibrous MPs in surface water, while the abundance of fragmented MPs increased with the depth of water. The main sources of MPs in the study area were residential activities, local plastic factories, and the treated effluent from a sewage treatment plant.

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