river pollution Articles

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Study offers first-ever map showing groundwater pollution of coastal areas of United States

by National Ground Water Association (NGWA)  (Aug. 11, 2016)

The study identified 12 percent of the continental U.S. coastline — including the northern Gulf Coast from Mississippi to the Florida Panhandle, northern Atlantic Coast, and Pacific Northwest — where the once-hidden drainage systems make the ocean most susceptible to freshwater contamination from septic tanks and ...

Study of metal pollution in Sembrong River, Johor, Malaysia

by Inderscience Publishers  (Aug. 25, 2009)

Sampling of the Sembrong River over a 9-month period revealed maximum total aluminium (Al), ferum (Fe) and manganese (Mn) concentrations of 61.0, 33.0 and 1.5 mg/L, respectively, and pH as low as 2.5, making it one of the most metal- and acid-contaminated rivers in Malaysia. The river serves as a fresh water source to water treatment plants ...

Treatment of polluted river water by a new constructed wetland

by Center for Environment and Energy Research & Studies (CEERS)  (Sep. 1, 2007)

Abstract: A new constructed wetland was built to purify one polluted river in Taiwan, and this study was conducted to evaluate the treatment efficiency of the wetland. Due to the very limitation of available budget, several water quality items, which were stipulated by Taiwan’s Environmental Protection Administration for rivers, in the influent ...

Current pollution status of Yangtze River and controlling measures

by Inderscience Publishers  (May 15, 2008)

The concentration of Persistent Organic Pollutants in Yangtze River in China is increasing steadily, especially in the downstream, where the drainage is often discharged into the water body without any treatment. In this study, the pollution status, trend of mainstream and Three Gorges area are analysed based on the statistical data of the water ...

River water pollution in Indonesia: an input-output analysis

by Inderscience Publishers  (Jan. 30, 2004)

Data from global environmental monitoring activities have shown alarming environmental conditions in many developing countries. Environmental policies that could improve the environment significantly, while at the same time maintaining the growth of economic activities are needed. Using an input-output analysis, this paper researches such policies ...

Economic analysis of alternative pollution abatement policies: the case of Buriganga River, Bangladesh

by Inderscience Publishers  (Jun. 2, 2014)

The Buriganga River is a prime example of serious surface water pollution problem. So far the emphasis of pollution abatement policy for this river has been solely on the application of command and control (CAC) mechanisms (standards on emission discharges), however little success has been achieved as the polluters seem to be reluctant to comply ...

Aquatic pollution in Mithi River of Mumbai: assessment of physico–chemical parameters

by Inderscience Publishers  (Jan. 17, 2013)

The present investigation along Mithi River of Mumbai deals with the study of physico–chemical parameters like pH, conductivity, solid content, hardness, chloride, sulphate/sulphide, phosphate, biochemical oxygen demand (BOD), chemical oxygen demand (COD), surfactants, oil/ grease and phenol content in river water samples. The study was performed ...

The impact of point sources of pollution on the transport of micropollutants along the river continuum

by IWA Publishing  (Jun. 18, 2014)

The main objectives of the presented study were to quantify the transfer of polychlorinated dibenzo-p-dioxins (PCDDs)/polychlorinated dibenzofurans (PCDFs) (polychlorinated dibenzo-p-dioxins/polychlorinated dibenzofurans) and dioxin-like polychlorinated biphenyls (dl-PCBs) along the river continuum and to evaluate the impact of wastewater ...

Automatic control of pollutant on a shallow river using surface water systems: application to the Ebro River

by IWA Publishing  (Jun. 5, 2014)

In this paper, the problem of automatic control of pollutant on a shallow river using surface water systems is addressed using a benchmark test case based in the Ebro River. The Ebro River presents flooding episodes in the city of Zaragoza in Spring when snow melts in the Pyrenees. To avoid flooding and high pollutant levels in living areas, ...

Diffuse pollution

by IWA Publishing  (Apr. 6, 2012)

Diffuse Pollution or Nonpoint source (NPS) pollution is water pollution affecting a water body from diffuse sources, such as polluted runoff from agricultural areas draining into ...

Water Pollution

by IWA Publishing  (Jul. 25, 2012)

Water pollution is a major global problem that requires ongoing evaluation and revision of water resource policy at all levels (from international down to individual aquifers and wells). It has been suggested that it is the leading worldwide cause of deaths and diseases, and that it accounts for the deaths of more than 14,000 people daily. In ...

A Win for River Restoration

by IWA Publishing  (Feb. 1, 2012)

A team of scientists from eWater CRC based in Canberra and at Griffith University in Queensland has won the WaterSecure - Healthy Waterways Research Award for its work on Prioritisation of Catchment Scale River Restoration within Southeast Queensland (SEQ).   The work is part of a Queensland Government funded ‘proof of ...

Pollution assessment of the impact of industrial effluents on the qualities of surface water and sediments of River Ona in Ibadan, Oyo state, Nigeria

by Inderscience Publishers  (Apr. 19, 2010)

River Ona, a major river in Ibadan, into which industries discharge their effluents, was studied to assess the impact of the industrial discharge. The mean levels for some parameters gave evidence of pollution. The mean values for DO (4.9 ± 0.3 mg/l), COD (54.5 ± 0.5 mg/l), PO43− (0.47 ± 0.09 mg/l), SO42− (20.65 ± 0.85 mg/l) were reported for the ...

Treatment of polluted river water by a gravel contact oxidation system constructed under riverbed

by Center for Environment and Energy Research & Studies (CEERS)  (Jun. 1, 2008)

The objective of this study was to evaluate the treatment efficiency of a gravel contact oxidation treatment system which was newly constructed under the riverbed of Nan-men Stream located at the Shin Chu City of Taiwan. The influent and effluent water samples were taken periodically for the analyses of pH, temperature, dissolved oxygen, total ...

Using constructed wetland systems to remove solids from highly polluted river water

by IWA Publishing  (Jan. 1, 2001)

The Erh-Ren River is located in southern Taiwan and is one of the most polluted rivers in Taiwan. A pilot-scale constructed wetlands (ERRCW) system containing a free surface flow wetland (FSF) followed by a subsurface flow wetland (SSF) was set up to treat the polluted river water. The system was designed to include solids removal. A removal ...

Investigation into the bacterial pollution levels at various sites along the Diep and Plankenburg river systems, 3 Western Cape, South Africa

by IWA Publishing  (Feb. 5, 2016)

This study sought to investigate and compare bacterial contamination levels at six different sites along the Diep and Plankenburg river systems in the Western Cape, South Africa. Surface water and sediment samples were collected monthly from the six selected sampling sites along both river courses between January 2014 and December 2014 and ...

Characterizing phosphorus removal from polluted urban river water by steel slags in a vertical flow constructed wetland

by IWA Publishing  (Mar. 7, 2016)

Phosphorus (P) removal in constructed wetlands (CWs) is often low unless special substrates with high sorption capacities are used. However, the use of special substrates in vertical flow (VF) CWs has not been proved to enhance P sorption. Thus, two VF wetlands were designed to evaluate the potential for enhanced P removal from polluted urban ...

Using a constructed wetland for non-point source pollution control and river water quality purification: a case study in Taiwan

by IWA Publishing  (May 1, 2010)

The Kaoping River Rail Bridge Constructed Wetland, which was commissioned in 2004, is one of the largest constructed wetlands in Taiwan. This multi-function wetland has been designed for the purposes of non-point source (NPS) pollutant removal, wastewater treatment, wildlife habitat, recreation, and education. The major influents of this wetland ...

Remediation of polluted river water by biological contact oxidation process using two types of carriers

by Inderscience Publishers  (Jul. 20, 2009)

Biological contact oxidation technology was used to remediate the polluted river water in Hanyang, China. The purification effect of the polluted river water in three simulated rivers was investigated using two different carriers, i.e., AquaMats made in USA and semi flexible supports made in China. The results showed that when the hydraulic ...

Microbiological pollution of surface water in the upper–middle basin of the Reconquista river (Argentina): 2010–2011 monitoring

by Inderscience Publishers  (May 22, 2013)

A microbiological monitoring was conducted on the water at six locations of the Reconquista river, a polluted peri–urban water body of Argentina. Samples were taken from surface water of three tributary streams in the dam outlet and 18 km downstream; samples from the sediments of one of the streams were also taken. For all samples the presence and ...

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