process water quality Articles

  • Meeting water quality specifications for 300 mm processing

    Abstract This paper reviews the historical ultrapure water specifications and compares them to the specifications for state of the art ...

  • Water Quality Models

    ' In order to determine the impacts of a particular discharge on ambient water quality, it is usually necessary to model the diffusion and dispersion of the discharge in the relevant water body. The approach applies both to new discharges and to upgrading of existing sources. This note provides guidance on models that may be applicable in the context of typical Bank projects.' Introduction ...


    By The World Bank

  • Mining Water Quality Application

    Isaac Plains Coal Mine Isaac Plains is an open cut coal mine, in Northern Queensland, Australia. The Isaac Plains Project operates under an Environmental Authority (EA). One of the environmental monitoring requirements which must be met is monitoring water. These include potable water, mine affected water, natural creek flows, water releases, groundwater and the receiving environment. The ...


    By ANDalyze, Inc.

  • Water Quality & Treatment Centers

    A look at the quality of water and the importance of inspecting the integrity of water treatment centers. Water…clear…cold…refreshing. It’s often your “go-to” beverage for quenching thirst after a vigorous activity. We are very fortunate that often within arm’s reach, rests a glass of water. Without hesitation or worry, you can pick it ...


    By Deep Trekker Inc.

  • Water quality in the Arosa Bay

    Background One of the great impediments to further development of shellfish aquaculture in the north-west region of Spain isa perception that industry expansion and tourism could have negative environmental effects on the coastal waters. Especially the bay around Villagarcia de Arosa is very famous because of its excellent areas for shellfish farming. The government of Spain is ...


    By OTT HydroMet

  • The Use of Water Quality and Process Models for Minimizing Wastewater Utility Greenhouse Gas Footprints

    The Use of Water Quality and Process Models for Minimizing Wastewater Utility Greenhouse Gas Footprints provides an understanding of the processes that are responsible for the major contributions to GHG emissions from WWTP and sewer systems (e.g. heterotrophic denitrification, autotrophic nitrification, autotrophic denitrification, methanogenesis). This knowledge is translated into mathematical ...


    By IWA Publishing

  • Effects of the anaerobic biowaste treatment processes Management on the digestate quality (residues from Digestion/compost, process water/wastewater)

    Regarding the municipally-collected biowaste amount in Germany, a quantity of 90 - 100 kg/ per annum per citizen is registered (Gallenkemper and Doedens, 1994). That results in an annual biowaste amount of 6.3 to 7 million tons in the Federal Republic of Germany (FRG), whereby also sewage sludges and biogenic, industrial wastes are added. According to Hochrein (1994) about 3 million tons of ...


    By ORBIT e.V.

  • Water quality for a laboratory monitored by AQUAVISTA™

    Biochemical & Molecular Biology laboratory at Nîmes University Hospital The Biochemical & Molecular Biology laboratory at Nîmes University Hospital has four main activities: the Biochemistry, Hormonology, Biological Oncology and General Toxico-Pharmacology sectors, for both routine and emergencies; the Toxicology and specialized and forensic ...


    By Veolia Water Technologies

  • 3 Common Water Quality Concerns

    About 10 percent of pond owners experience water quality problems in their ponds. Unfortunately, most pond owners pay little attention to managing the quality of water and never get it tested. As a result, the problem is detected only when it gets worst. Water quality is influenced by both natural processes and external environmental factors.Natural factors may include the types of rock and soil ...


    By LG Sonic

  • Water Quality Analysis Safeguarding Families

    Water is intensely purified and treated by water authorities before being ready for thousands of families. Everybody expects clean and safe tap water when turning on their taps. A water quality analysis center in Shanghi, China excels in its water testing and analysis with fully automatic potentiometric titration. Traditional Water Quality Analysis In order to ensure water hygiene and safety ...


    By Mettler - Toledo Int. Inc

  • What are the main indicators of water quality?

    “Water is the driving force of all nature;” so said Leonardo da Vinci. The survival of our planet depends on the availability of water and the condition that it is in. It is therefore vital to make sure that it is able to provide a hospitable environment for those that live in it, and is free from harmful levels of substances for those that drink it. Not ...


    By Aquaread Limited

  • Stagewise processing of yellow water using clinoptilolite for nitrogen and phosphorus recovery and higher residual quality

    Source-separated human urine may be used as a source of fertilizers indirectly through processing with clinoptilolite. The suggested form of fertilizer is clinoptilolite loaded with plant nutrients from urine, where nitrogen and phosphorus will be released upon contact with water. Triggered by the need for handling high concentrations remaining in the liquid phase to be disposed of, this paper ...


    By IWA Publishing

  • Water quality characteristics of different industrial wastewater by Delphi water quality index method

    Water quality index (WQI) is a single value numerical expression, which can evaluate the quality of given water body at particular position and time. Five different industrial wastewaters WQI are formulated by Delphi process (before and after treatment) and the results obtained for each samples are reported. It has been observed that the individual parameters vary quite widely whereas when it is ...


    By Inderscience Publishers

  • Upgrading effluent quality with a plastic media based process

    Wastewater treatment plant retrofits worldwide are motivated by two main developments: changes in effluent quality regulations, population growth in certain areas. In recent years, the EU (under directive EEC/271/91) and US (Section 304A of the Clean Water Act) have launched programs for nutrient removal in all ...

  • Energy from Waste (EfW)

    To recover energy from waste is a necessary and useful part of the whole waste management process. Inciner8 have developed the first truly mobile waste to energy solution in their EfW range of equipment. ...


    By Inciner8 Limited

  • Reducing NOx in Diesel Emissions | Spectroscopy Solutions

    Air pollution and NOx emissions from diesel engines are a global concern due to their potential impacts on human health. Researchers worldwide are developing new and improved methods to reduce NOx emissions. Infrared spectroscopy in the gas phase, which is made possible using FTIR gas cells from Specac, has an important role to play in this ...


    By Specac Limited

  • Water quality products magazine features ITS

    The decision for a company to seek approval from the U.S. Environmental Protection Agency (EPA) on a product can be beneficial in the long run, but the road to get there may be a long one. In August 1998, Industrial Test Systems (ITS) began its journey on the path to EPA approval for its Sensafe Free Chlorine Water Check test strips. After many outside studies, research, testing and reporting, ...

  • Water quality management in the Balabandere Creek catchment

    Understanding hydrological and hydrochemical processes has become increasingly more challenging with high rates of population growth and subsequent alteration of the environment. In addition to maintaining monitoring networks to assess the general state of water quality, detecting trends, and computing pollutant transport, process-level information is needed to evaluate factors that affect the ...


    By Inderscience Publishers

  • Effect of water quality of antibiotics by RO/NF

    This study addresses the possibility for nanofiltration (NF) and reverse osmosis (RO) membrane processes to serve as an alternative to remove low levels of selected antibiotics from wastewaters and surface waters given changing water conditions such as pH and presence of natural organic matter (NOM).  Preliminary experimental results obtained with a dead-end filtration apparatus suggest that ...


    By Toray Chemical Korea

  • Continuous Modeling of Wet Weather Strategies Annual Water Quality Results Support a Municipality’s Decision-Making Process

    ABSTRACTAn extensive water quality modeling effort for the City of Columbus Long Term Control Plan (LTCP) was performed in order to evaluate future scenarios to abate combined sewer overflows. This modeling effort was supported by a massive data collection program and employed three different models to analyze the receiving streams. Once the models were selected and calibrated, continuous annual ...

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