water quality analyzer Articles

  • Water Treatment Optimization - Case Study

    Drinking water treatment in North America has stringent requirements for effluent water quality, with a great amount of attention being drawn to the presence of hazardous disinfection by-products (DBPs) persisting through water distribution systems. The operation of water treatment plants involves addition of various mixing agents to help with coagulation and settling of organics in the raw water ...


    By MANTECH

  • Why You Should Consider a Sample Conditioning Unit for Taking Low NOx Measurements When Using a Portable Emissions Analyzer

    Using state-of-the-art technology, we here at E Instruments create high-quality portable industrial combustion gas and emissions analyzers that are capable of taking precise, low NOx measurements for both NO and NO2. In particular, we recommend our sample conditioning unit to those of you who need to take accurate, low NOx or SO2 ...

  • Ensuring Water Quality in Africa

    Water is essential for life, and “access to safe water is a fundamental human and, therefore, a basic human right.” With this statement and his address on World Water Day in 2001, United Nations Secretary-General Kofi Annan put a spotlight on what continues to be a global problem: clean water. This year completes the UN “Water for Life” international decade for ...


    By ASTM International

  • 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

  • Water Quality Parameters Along Rivers

    Water samples have been collected from a part of Surma River along different points and analyzed for various water quality parameters during dry and monsoon periods. Effects of industrial wastes, municipal sewage, and agricultural runoff on river water quality have been investigated. The study was conducted within the Chattak to Sunamganj portion of Surma River, which is significant due to the ...

  • Advanced Water Quality Techniques Course

    Abstract:The development of a strategic water quality monitoring program is based on prioritizing risks to public safety and economic reality. The development of global standardized methods and protocols for automated water quality monitoring would facilitate international communication of water quality information and comparison of standardized methods and protocols. The three primary methods ...


  • Water Quality Assessment and Onshore Development in Tropical Waters

    Standards for bacteriological recreational water quality in Puerto Rico are those proposed by US EPA. The standard for primary contact recreational use has both single-sample limits and running- average threshold limits based on historical data developed for the specific site. La Parguera is the site of a Special Marine Reserve and counts among its unusual habitats a phosphorescent bay, important ...

  • A methodological strategy to analyze and improve the French rainwater harvesting regulation in relation to quality

    In 2008, France implemented a regulation framework for rainwater harvesting (RWH). This framework implicitly defines several categories of rainwater quality for different uses through specific technical requirements to be implemented. This paper presents a detailed analysis of these requirements. Then, results concerning the bacteriological and physicochemical water quality from past on-site ...


    By IWA Publishing

  • Water Quality Changes During 500-Year Flood Controlled with Sievers TOC Analyzer

    During September 20–21, 2009, over 18 inches of rain fell in Acworth, Georgia. The U.S. Geological Survey called this an epic 500-year flood for the area and one of the worst floods in the U.S. during the past 100 years. The flooding caused the local drinking water treatment plant, Cobb County-Marietta Water Authority, to see a rapid decrease in the Allatoona Reservoir source water ...


    By GE Analytical Instruments

  • Modeling of eutrophication and strategies for improvement of water quality in reservoirs

    The purpose of this study is to survey the thermal regime and eutrophication states in Ilam reservoir in Iran as the case study. For this purpose and to find solutions for improving the water's quality in the reservoir, two general strategies for reducing the entering pollution loads and water depletions from the reservoir's outlets were analyzed by use of the CE-QUAL-W2 model. Results of the ...


    By IWA Publishing

  • Case study - Water quality in the Mississippi Basin

    A resilient method for monitoring water quality and nitrate levels in the harsh aquatic environment of the Mississippi River, in section 16, was required by the University of Iowa -IIHR. The monitoring of continually accurate water quality data was important for analysis, in conjunction with the diurnal mussel study of the University of Iowa. Monitoring water over extended periods of time in ...


    By The OTT Hydromet Group

  • Impact of fertilizer plant effluent on water quality

    The impact of National Fertilizer Company of Nigeria outfall effluent on the physicochemistry and bacteriology of Okrika creek was investigated during the sampling period from May to December, 1998. The National Fertilizer Company of Nigeria outfall effluent, the Okrika creek water and the Ikpukulubie creek (control) water samples were collected. The physico-chemical parameters analyzed for all ...

  • Lake Water Quality Model with Focus on Cyanobacteria

    ABSTRACTThe cause of cyanobacteria’s growth and dominance in certain eutrophic lakes is explored via a water quality model application. The one-dimensional lake water quality model includes nitrogen, phosphorus, silica, three phytoplankton groups and zooplankton. Lake Washington was used as the case study due to its unique history of eutrophication during a large wastewater nutrient loading ...

  • Topological clustering as a tool for planning water quality monitoring in water distribution networks

    Topological clustering was explored as a tool for water supply utilities in preparation of monitoring and contamination contingency plans. A complex water distribution network model of Copenhagen, Denmark, was simplified by topological clustering into recognizable water movement patterns to: (1) identify steady clusters for a part of the network where an actual contamination has occurred; (2) ...


    By IWA Publishing

  • The Secret to Quality Food Products

    Quality is everything when it comes to food, and accurate moisture control is essential to quality. Decrease spoilage, wasted products and lost profits by making sure you’re accurately monitoring the moisture content of your food products. Join us July 17-19 in Chicago, IL at the International Food Technologists Annual Meeting & Expo ...


    By Arizona Instrument LLC

  • Monitoring Environmental Quality

    ' In order to determine the effectiveness of actions to improve environmental quality it is necessary to be able to measure relevant environmental parameters at a level of detail which is accurate enough to distinguish the anticipated changes. However, the establishment and maintenance of monitoring systems is time-consuming and expensive and therefore the scale of such systems needs to be kept ...


    By The World Bank

  • Comparative analysis of the outflow water quality of two sustainable linear drainage systems

    Three different drainage systems were built in a roadside car park located on the outskirts of Oviedo (Spain): two sustainable urban drainage systems (SUDS), a swale and a filter drain; and one conventional drainage system, a concrete ditch, which is representative of the most frequently used roadside drainage system in Spain. The concentrations of pollutants were analyzed in the outflow of all ...


    By IWA Publishing

  • Analysis of variation and relation of climate, hydrology and water quality in the lower Mekong River

    In order to determine the influence of climate and hydrology on water quality of the lower Mekong River, the long term monitoring data (from 1985 to 2004) of climatic, hydrological and water quality variables were analyzed. In general, water quality was ‘good’ or ‘very good’ for most of the investigated water quality parameters including DO, pH, conductivity, nitrate, phosphate and total ...


    By IWA Publishing

  • Spatial and seasonal variability of water quality in the Mopanshan Reservoir (Harbin, Northern China)

    The purpose of this work is to evaluate the spatial and seasonal variability of water quality from the Mopanshan Reservoir, which is a typical reservoir in the northern cold regions of China. The results indicate that preventive or remediation actions are necessary to improve its water quality. Water samples were collected between 2012 and 2013 at five sampling stations at the Mopanshan ...


    By IWA Publishing

  • Maleh stream water quality assessment using Prewat Model

    In this study, water quality of Maleh stream and its effects on Shadegan wetland water quality were evaluated in various intervals using one-dimensional Prewat model(version 2.4). The Prewat model was developed by the Engineering division of US Army corps. The Maleh stream is located 30 kilometer north of Ahvaz city and is discharged into the Shadegan wetland. To perform the study, water quality ...


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