water pollutant Articles

  • Water Pollution

    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 addition to the acute problems of water pollution in ...


    By IWA Publishing

  • Projection pursuit cluster model based on genetic algorithm and its application in Karstic water pollution evaluation

    A projection pursuit cluster model is used to resolve the problem of Karstic water pollution evaluation. First, the projection pursuit cluster model is stated. Then, a genetic algorithm is applied to optimise the projection direction of the projection pursuit cluster model, and the steps of the genetic algorithm are introduced in detail. Finally, a case study of Karstic water pollution evaluation ...


    By Inderscience Publishers

  • Water pollution

    Water pollution is a major problem in the global context. It has been suggested that it is the leading worldwide cause of deaths and diseases,1,2 and that it accounts for the deaths of more than 14,000 people daily.2 An estimated 700 million Indians have no access to a proper toilet, and 1,000 Indian children die of diarrheal sickness every day.3 Some 90% of China's cities suffer from ...


    By IWA Publishing

  • Examining social-economic factors in spatial and temporal change of water quality in red soil hilly region of South China: a case study in Hunan Province

    The study examines the temporal-spatial variation of water quality by adopting the comprehensive Water Quality Index, and the relationships between economic development and water pollution in Hunan Province by the environmental Kuznets curve hypothesis. The results of temporal-spatial analysis show water pollution is worsening, the water environment in the west province is better than that in the ...


    By Inderscience Publishers

  • Understanding environmental pollution concepts: a case study using school students in Argentina and Puerto Rico

    This paper explores concepts about air, water and soil pollution that students of grades 7?9 have in Argentina and Puerto Rico. A structured questionnaire was used in the investigation. A quantitative analysis was carried out to characterise the occurrence and frequency of conceptual errors, and to analyse their decrease with an increase in the educational level of the students. The results ...


    By Inderscience Publishers

  • Seattle Stormwater Management

    Since the 1990s the city of Seattle – a major coastal seaport in the North West of the U.S. – has invested heavily in cleaning up and reducing severe pollution of the water environment. Some of the ideas to help prevent water pollution can be of great inspiration to cities in Europe. Read more ...


    By Worldwatch Institute

  • Water pollution control and strategies in Finnish pulp and paper industries in the 20th century

    This paper discusses and analyses the evolution of the Finnish pulp and paper industries and their water pollution control strategies. The Finnish pulp and paper mills are mainly located along water courses in inland areas. The earliest documents on water pollution date back to the early 1900s. In spite of the remarkably good record during recent decades in water pollution control, it can be ...


    By Inderscience Publishers

  • Development of wastewater treatment in the Pearl Delta: a balancing act

    This paper reviews the current state of water pollution in the Pearl Delta, highlights the main problems, and discusses how private participation may serve a catalytic function in the important task of preventing the world's biggest economic boom turning into an environmental disaster.Keywords: China, Pearl Delta, wastewater ...


    By Inderscience Publishers

  • Release of phosphorus in sediments from a tributary of the Three Gorges Reservoir (China) with phosphate-solubilising bacteria

    Inorganic Phosphate-solubilising Bacteria (IPB) and Organic Phosphate-mineralising Bacteria (OPB) was isolated from DaNing River which was an important tributary of the Three-Gorges Reservoir (China), and their abilities for P release from sediment were evaluated in batch experiments. The results showed that IPB and OPB may not only enhance P release, but also reserve P as organic P and inorganic ...


    By Inderscience Publishers

  • Canarina DESCAR software · water pollution · commands 15

    Export Picture.- With this command you will be able to export images and pictures (BMP files). These images will contain the background picture and the simulation results.   Many programs, computer applications and word processors (AutoCad, 3d Studio, ArcView, MS Word,...) import BMP files. You will be able to load images generated by ...

  • Abatement vs. treatment for efficient diffuse source water pollution management in terrestrial-marine systems

    Marine ecosystems are affected by water pollution originating from coastal catchments. The delivery of water pollutants can be reduced through water pollution abatement as well as water pollution treatment. Hence, sustainable economic development of coastal regions requires balancing of the marginal costs from water pollution abatement and/or treatment and the associated marginal benefits from ...


    By IWA Publishing

  • Distinguishing between human and animal sources of fecal pollution in waters: a review

    This review paper discusses some of the earlier and current methods used to identify the human and non-human sources of fecal pollution in water. It is mainly focused on chemical approaches, i.e., fecal sterol and bile acid biomarkers, to identify the sources of fecal pollution. Findings of our study are in agreement with earlier investigations, that it is unlikely for any single determinant to ...


    By Inderscience Publishers

  • Hard coal as a potential low-cost adsorbent for removal of 4-chlorophenol from water

    The potential use of raw hard coals as low-cost adsorbents for the removal of 4-chlorophenol (4-CP) from aqueous solutions was examined. The effect of experimental parameters such as the pH and salt presence was evaluated. The kinetic studies showed the equilibrium time was found to be 2 h for all of the adsorbents and that the adsorption process followed the pseudo-second order kinetic model. ...


    By IWA Publishing

  • Water decontamination by silver and copper montmorillonite

    Several bactericide inorganic materials have been used for the purification of water with varying success. The characterisation of the incorporation of Ag or Cu cations in montmorillonite (MMT) clay, to obtain a bactericide material against E. coli, indicated that both outer and interlayer surfaces act as adsorption sites of AgO and Ag2O or CuO, respectively. The Ag–exchanged ...


    By Inderscience Publishers

  • Ecological Monitoring of Accidental Water Pollution - Operational Guide

    An important component of Cedre’s work involves designing operational guides which present the results of studies, of experimental work and experience feedback from accidents which have occurred. This guide is aimed at decision-makers liable to be involved in designing and implementing ecological monitoring programmes in the aftermath of an accidental water pollution ...


    By CEDRE

  • A study on synthetic regional environmental policies for utilising biomass resources

    Due to the principles of mass balance, there is a trade-off between regional water pollution and global warming. However, local governments in charge of water pollution control usually try to reduce water pollution loads without thinking of the influences on global warming. This study aims to formulate a simulation/evaluation model that reflects material balance and evaluates the regional ...


    By Inderscience Publishers

  • Institutional trajectory for diffusing on-site wastewater treatment in urban China

    Urban water scarcity has been an issue for a long time in China while water pollution has attracted more and more attention over the last two decades. Recently, on-site wastewater treatment (OST) has been proposed as a meaningful alternative to deal with both water pollution and water scarcity in cities in a more sustainable way. However, the diffusion of such an OST system is still slow and ...


    By IWA Publishing

  • Urban Runoff

    Urban runoff is surface runoff of rainwater created by urbanization. This runoff is a major source of water pollution in many parts of the ...


    By IWA Publishing

  • Draft preliminary report – Evaluation of the EcoTank project at Negombo, Sri Lanka

    Between September 28 and 30, 2011 an evaluation of the Negombo Sri Lanka EcoTanks project was conducted by David Robbins of RTI International. The purpose of the evaluation was to determine if the EcoTank products were used appropriately, identify any issues with the development process, document lessons learned, and discuss next steps. The project objectives as stated by the Municipal Council ...


    By IWA Publishing

  • An efficient model of stationary transport

    An efficient method for construction of the residual current field and the concentration field of stationary transport model is presented for a basin with a flat bottom. The current and concentration fields are defined by various types of boundary conditions and measured values of the fields inside the basin. Reliability of the results is discussed.Keywords: dissolved substances, mathematical ...


    By Inderscience Publishers

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