water treatment chemical product 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 Inc.

  • Water Treatment Equipment Markets in China

    China’s demand for Water Treatment Equipment has grown at a fast pace in the past decade. In the next decade, both production and demand will continue to grow. The Chinese economy maintains a high speed growth which has been stimulated by the consecutive increases of industrial output, import & export, consumer consumption and capital investment for over two decades. This new study ...


  • Chemical and toxicological evaluation of transformation products during advanced oxidation processes

    The entry of pharmaceuticals into the water cycle from sewage treatment plants is of growing concern because environmental effects are evident at trace levels. Ozonation, UV- and UV/H2O2-treatment were tested as an additional step in waste water treatment because they have been proven to be effective in eliminating aqueous organic contaminants. The pharmaceuticals carbamazepine, ...


    By IWA Publishing

  • The application of potassium manganate in water treatment

    This paper explores the feasibility of using potassium manganate (K2MnO4) in water treatment. Manganate (Mn(VI)), like ferrate (Fe(VI)), can act as both an oxidant and a coagulant/adsorbent arising from the formation of insoluble manganese dioxide (Mn(IV)) from the chemical reduction of MnO42−. In this paper the basic properties of K2MnO4 are described, including the standard electrode potential ...


    By IWA Publishing

  • Beef Processing Waste Water Treatment

    Industrial Beef Processor Wastewater Treatment Success Story Beef Processing Wastewater Treatment - $80k Saved a Month! First Beef Processing Facility This facility ...


    By Integrated Engineers Inc.

  • Mechano-chemical ageing of PES/PVP ultrafiltration membranes used in drinking water production

    In water treatment by microfiltration and ultrafiltration, a major concern is the integrity loss or failure of membrane induced by onsite operations, potentially leading to permeate water contamination. This study aims to provide a better understanding of the phenomena responsible for membrane damage by analyzing its causes and effects. The role of sodium hypochlorite exposure conditions and the ...


    By IWA Publishing

  • Chemical Engineering Magazine: Odor Issues and Solutions for Wastewater Treatment

    Today, there has been a dramatic increase in the number of industrial operations that are located within or near small towns and even large cities. When local residents constantly smell these industrial processes – particularly from wastewater treatment — unhappy neighborhoods are generally the result. In addition, many wastewater facilities can no longer produce odors without facing ...


    By OMI Industries (OMI)

  • Chemical production and characterisation of activated carbon from waste 'coffee grounds'

    Activated carbon was prepared from ground–coffee in this study. Experimental results reveal that for the ratio (0, 1 ÷ 0, 3) of coffee grounds to activating agents (ZnCl2, H3PO4) has not noteworthy influence. The rise temperature and carbonisation time respectively, in the interval of 500–700°C and ...


    By Inderscience Publishers

  • Automatic control of the effluent turbidity from a chemically enhanced primary treatment with microsieving

    For chemically enhanced primary treatment (CEPT) with microsieving, a feedback proportional integral controller combined with a feedforward compensator was used in large pilot scale to control effluent water turbidity to desired set points. The effluent water turbidity from the microsieve was maintained at various set points in the range 12–80 NTU basically independent for a number of studied ...


    By IWA Publishing

  • Application of chemical oxygen demand to drinking water

    “This study investigated the use of a photoelectrochemical chemical oxygen demand (peCOD) analyzer for the detection of model organic compounds and natural organic matter (NOM) from four drinking water treatment plants in Nova Scotia, Canada. Most model organic compounds showed ...


    By Camlab Limited

  • The mystery of electronic water treatment unveiled

    The problems of scale are well known to those living and working in "hard" water areas. Scale is the undesirable consequence of water supplies becoming super-saturated with dissolved minerals.  These problems are of greater significance if found in industrial water systems and commercial buildings. Scaling problems commonly occur, even in "soft" water areas, when a fluid stream is ...

  • Understanding the impacts of allocation approaches during process‐based life cycle assessment of water treatment chemicals

    Chemicals are an important component of advanced water treatment operations not only in terms of economics, but also from an environmental standpoint. Tools such as life cycle assessment (LCA) are useful for estimating the environmental impacts of water treatment operations. At the same time, LCA analysts must manage several fundamental and as yet unresolved methodological challenges, one of ...


    By John Wiley & Sons, Ltd.

  • Online Chemical Oxygen Demand for Treatment Optimization - Case Study

    A wide variety of products are made in the chemical and pharmaceutical manufacturing industries, that require large volumes of chemicals, materials, and substances that are used throughout process operations. Waste water from these facilities typically include contaminants, toxins, nutrients, and organic content that presents challenges with regards to treatment. A major UK based chemical ...


    By MANTECH Inc.

  • Dolphins to the Rescue: Dolphins Eliminate the Need for Chemical Treatments to Prevent Scaling

    Untitled Document Mineral scale accumulates daily inside the boilers and cooling towers that keep us warm in the winter and cool in the summer. Scale is a bad actor causing loss of efficiency, ...


    By Dolphin WaterCare

  • A modified anaerobic digestion process with chemical sludge pre-treatment and its modelling

    Activated Sludge Models (ASMs) assume an unbiodegradable organic particulate fraction in the activated sludge, which is derived from the decay of active microorganisms in the sludge and/or introduced from wastewater. In this study, a seasonal change of such activated sludge constituents in a municipal wastewater treatment plant was monitored for 1.5 years. The chemical oxygen demand ratio of the ...


    By IWA Publishing

  • Tracking disinfection by-products and arsenic removal during various drinking water treatment trains

    In the central Banat region (Northern Serbia), groundwater is used as a drinking water source. Raw water originates from a 40–80 m and 100–150 m deep layer. It contains a high amount of natural organic matter (DOC = 9.17±0.87 mg C/L) with a trihalomethanes formation potential of 448±88.2 μg/L and a haloacetic acid formation potential of 174±68.9 μg/L. A high amount of arsenic (86.0±3.4 μg/L) is ...


    By IWA Publishing

  • Power plant saves millions and increases production by improving cooling tower water treatment - case study

    Application: Cooling Tower Water Treatment A Power Plant in Palo Seco, Puerto Rico has realized the millions in annuals savings since the 2010 MIOX installation. Power production was boosted by 7% in the first year due to biofilm and scaling removal, equaling $3.4 million in added capacity.  A 57% reduction in operation and maintenance costs saved the power plant $1.4 ...

  • Chemistry of Chlorine Application and Production for the Disinfection of Water and Wastewater

     ABSTRACT A thorough understanding of chlorine and sodium hypochlorite chemistry is essential in optimizing their usage in disinfection of water and wastewater. High price of both chemicals and hazards involved in their transportation to plant sites have prompted many utilities to consider generation of these chemical on-site. A detailed discussion of the critical engineering concepts ...

  • Former Chemical Manufacturing Facility

    Charleston, South Carolina, USA Project Bioremediation of Soil Containing Toxaphene and DDT Summary The application of DARAMEND® served to reductively dechlorinate and subsequently mineralize chlorinated herbicides and pesticides present in soil. This project was the third in a series of three pilot-scale projects aimed at validating DARAMEND® ...


  • Surface Water Treatment Industry - Case Study

    “The surface treatment industry itself exists to produce durable products and to spare the environment.“ K. Hartwall Ltd. is an enterprise in the metal industry with net sales of approximately 20 million euro. The company is well known for its innovative carriage products used in the transport and storage of goods, especially foodstuffs. The primary material in carriages is steel, ...


    By Watman Ltd.

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