chemical dosing Articles

  • In vitro biotransformation rates in fish liver S9: Effect of dosing techniques

    In vitro biotransformation assays are currently being explored to improve estimates of bioconcentration factors of potentially bioaccumulative organic chemicals in fish. This study compares thin‐film and solvent‐delivery dosing techniques, as well as single vs. multiple chemical dosing for measuring biotransformation rates of selected polycyclic aromatic hydrocarbons in rainbow trout ...


    By John Wiley & Sons, Ltd.

  • Verder UK Ltd Chemical Dosing Open Day

    Verder UK Ltd will be hosting an open day allow all customers and those looking for a chemical dosing solution to see first-hand how the Verder Project Team can meet their requirements. ...

  • Client : A successful food and drink manufacturing company

    Job Title : Replacement chemical dosing pipework Area : Chichester and Selsey, West Sussex The client had a problem with leaking Citrus Acid and Sodium Hypochlorite on their food preparation production line. New uPVC pipework was installed and re-routed to eliminate further damage from foot traffic and catchpots were added at strategic points to collect ...


    By WES Limited

  • Industrial - Plasterboard Manufacture - Case Study

    Project Title - Fluidiser / Retarder chemical dosing Client - Siniat Ltd Project Value - £39K Chemical - Chryso Gypflu CA / Plast Retard L Duration - 10 weeks Our Services ...


    By WES Limited

  • Microsieving in primary treatment: effect of chemical dosing

    Primary and chemically enhanced primary wastewater treatment with microsieving (disc or drum filtration) was studied at the large pilot scale at seven municipal wastewater treatment plants in Europe. Without chemical dosing, the reduction of suspended solids (SS) was (on average) 50% (20–65%). By introducing chemically enhanced primary treatment and dosing with cationic polymer only, SS ...


    By IWA Publishing

  • Controlling chemical dosing for sulfide mitigation in sewer networks using a hybrid automata control strategy

    Chemicals such as magnesium hydroxide (Mg(OH)2) and iron salts are widely used to control sulfide-induced corrosion in sewer networks composed of interconnected sewer pipe lines and pumping stations. Chemical dosing control is usually non-automatic and based on experience, thus often resulting in sewage reaching the discharge point receiving inadequate or even no chemical dosing. Moreover, ...


    By IWA Publishing

  • Phosphate removal without chemical dosing from Virotec

    In this article Simon Tillotson, General Manager at Virotec Europe Limited, explains how the Company’s new innovative Bauxsol™ technology is produced, the nature, characteristics and formulation of the product range and how the product works. He outlines applications for Bauxsol™ technology in the water and environmental sector. Simon concentrates specifically on using Bauxsol™ for phosphate ...


    By Clarity Authoring

  • Project - Makó

    Description 8400 m3/day Biological capacity 59 000 PE Commissioned July, 2014 Details ...


    By Cyclator Kft

  • TB 38: Chemical-free membrane degassing in pharmaceutical plants

    Technology for the Removal of Dissolved GasesIn treating water for the production of pharmaceuticals, the concentration of gases dissolved in the water plays an important role. In many cases the CO2 content in the raw water has to be further reduced to obtain purified water with a conductivity of < 1.3 μS/cm (at a temperature of 25°C). membrane degasification system downstream of the RO ...

  • Age of onset in health impact assessment of chemical substances

    The age at which a disability starts is important information when performing a quantitative health impact assessment of any particular chemical substance. From the fields of epidemiology and toxicology it is known that this age of onset may be influenced by chemical exposure and that this influence is dose (or exposure) dependent, i.e. effects will occur at younger ages when dose is increased. ...


    By Inderscience Publishers

  • The challenge of multiple chemical sensitivity

    Environmental health professionals frequently come across a health-related problem with no clear cause-and-effect relationship. A typical case occurs when a person complains of experiencing symptoms, often in an indoor setting, that may vary from vague to severe. Multiple Chemical Sensitivity (MCS) may be a factor at play in some of these situations. The condition is characterized by persistent ...

  • Modular Reed Bed - Case Study

    The modular reed bed is an award winning, innovative solution for small footprint tertiary treatment. This case study follows the implementation of this technology on a small and remote sewage works which was overloaded during high rainfall. This project saved 91% in costs for the effected utility (which had a budget of £300k for the project) and provided a reduced health and safety risk ...


    By Greener Waste Technology

  • Chemical dosing and blending - the role of precision actuators

    Overview Chemical dosing is the introduction of a measured quantity of a chemical into a process fluid so that a chemical reaction occurs in the process fluid or a particular blend of fluids is achieved. ...


    By Rotork plc

  • Modeling NOM removal by softening in a surface water treatment plant

    Phenomenological models and hybrid phenomenological–chemometric models were developed to predict natural organic matter (NOM) removal based on the real water treatment data from the city of Minneapolis over a 3 year period. The analysis of the modeling results showed that the phenomenological model was able to capture the major variations of NOM removal but it tended to over predict the ...


    By IWA Publishing

  • South West Water Exmouth case study

    It can be a tough job for the water treatment industry, faced with the needs to ensure the effectiveness of their treatment plants and processes whilst keeping operating costs within strict budgets. Finding a solution to these challenges means not only investing in the most appropriate technologies so that treatment works fulfil their obligations, but also evaluating ways of optimising ...


    By Partech (Electronics) Ltd.

  • Influence of feed quality on seawater reverse osmosis performance

    The trouble-free operation of a Reverse Osmosis (RO) plant relies on the quality of the treated feed water, which highlights the need for optimisation of the pre-treatment steps. The quality of raw seawater varies with time in terms of suspended and colloidal load, along with the dissolved salt content. In a conventional pre-treatment scheme, consisting of clarification and particulate and micron ...


    By Inderscience Publishers

  • Malaysian project sets new technology trend for supply of safe drinking water to remote communities

    Introduction In this article we review a successful water treatment project undertaken in partnership between local residents of East Malaysia and process engineering contractor Aquakimia Sdn. Bhd. Having operated successfully for over two years, the scheme involved the supply of a package water treatment system incorporating inclined plate clarification, multi-media filtration and chemical ...


    By Clarity Authoring

  • Oxidation and coagulation of humic substances by potassium ferrate

    Ferrate (FeO42−) is believed to have a dual role in water treatment, both as oxidant and coagulant. Few studies have considered the coagulation effect in detail, mainly because of the difficulty of separating the oxidation and coagulation effects. This paper summarises some preliminary results from laboratory-based experiments that are investigating the coagulation reaction dynamically via a PDA ...


    By IWA Publishing

  • The Importance of Slow Kinetic Reactions in Simultaneous Chemical P Removal

    ABSTRACTLaboratory and full-scale experiments were performed in order to investigate the effect of mixing, as represented by the mean velocity gradient, G-value (Grady et al, 1999), and time dynamics in chemical phosphorus removal. The results prove that the chemical reactions occurring during phosphorus removal upon addition of trivalent metal salts (Fe, Al) cannot be described with the ...

  • Kinetic modelling approach as a decision support tool for chloraminated distribution systems

    Disinfection and distribution system management of chloraminated systems can be a challenging task for water operators due to the complexity of chloramine chemistry. Formation of chloramines and maintenance of a suitable disinfection environment requires careful control of several operational parameters at the plant and at different locations along the distribution system. A mathematical model ...


    By IWA Publishing

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you