Water Treatment Monitoring Articles

  • How Do Microbes Work?

    Beneficial bacteria are a natural solution for improving water quality in ponds, lakes, reservoirs, and canals. Beneficial microorganisms that are naturally present in the aquatic environment are typically at low levels, so they work much slower at reducing nutrients to maintain water ...


    By Keeton Industries, Inc.

  • Tools for monitoring distribution system water quality: a study using four parallel pilot systems

    Monitoring and understanding water quality changes within the distribution system is essential to enable effective management to provide good quality water at the customer tap. A recent 2-year study utilised four parallel pilot distribution systems (PDS) and a range of simple tools to assess the impact improving treatment had on the water quality within the distribution system. Particle ...


    By IWA Publishing

  • Farmington water pollution control authority case study

    Performance History and Discussion The Farmington Water Pollution Control Authority (FWPCA) selected In-Pipe Technology to improve the performance of the WWTP by reducing sludge production and improving the nitrogen removal efficiency of the treatment process. Additional benefits of In-Pipe service include improving effluent water quality, reducing energy consumption at the plant and ...

  • Survival of Helicobacter pylori in the wastewater treatment process and the receiving river in Michigan, USA

    Contaminated water may play a key role in the transmission of Helicobacter pylori, resulting in gastrointestinal diseases in humans. The wastewater treatment process is an important barrier to control the transmission of H. pylori. However, the presence and viability of H. pylori in the treatment process is not well known. In this paper, the real colony ...


    By IWA Publishing

  • Biological treatment of colored wastewater by Streptomyces fulvissimus CKS 7

    This study aims to investigate the biological processes related to the biodegradable potential of growing microbial cells for contaminated water treatment. Thus, the use of the Streptomyces fulvissimus CKS 7 (CKS7) has been evaluated for decolorizing efficiency of a solution containing a cationic triphenylmethane dye, crystal violet. The color reduction was monitored by UV–Vis spectroscopic ...


    By IWA Publishing

  • Removal of pharmaceutical residues using ozonation as intermediate process step at Linköping WWTP, Sweden

    Pilot tests as basis for the design, implementation and operation of a future full-scale oxidation plant completing the existing sewage treatment in Linköping, Sweden, were performed. Using an ozonation step between bio-sedimentation and post-denitrification processes, the primary goal was the removal of the highest priority substances to effluent water levels that will not cause adverse ...


    By IWA Publishing

  • BM Respirometry applied to a novel control strategy of nitrification in a wastewater biological treatment

    Abstract In wastewater treatment plants, the biological nitrogen removal (BNR) has acquired critical importance, which makes that in the majority of the cases the overall process control largely depends on the control of this treatment. The normal aerobic process of nitrification is performed by specific aerobic living microorganisms and a lack of information on their bioactivity may ...


    By SURCIS, S.L.

  • Monitoring of a pilot GFO filter for removal of low-concentration arsenic in water

    Many water treatment plants (WTPs) were designed to remove ammonia, iron, and manganese simultaneously using biofilters. In some cases (especially in the Pianura Padana area, in Italy) such plants were designed without a specific treatment stage for arsenic removal because its concentration in the groundwater (i.e. 10 to 20 μg/L) was lower than the previous maximum contaminant level (MCL) of ...


    By IWA Publishing

  • Active pharmaceutical ingredients in wastewater: who are the major contributors?

    Active pharmaceutical ingredients (APIs) – responsible for the biological activity of drugs – have been widely found in the environment, yet the precise sources and relative importance of emissions via wastewater are not quite clear. This study assessed emissions from three health institutions in Germany – a hospital, a psychiatric hospital, and a nursing home - and found their ...

  • Everett, WA - ERH under active storm water retention basin - Case Study

    First below water ERH remediation of TCE in active stormwater retention basin Project Summary TRS Group, Inc. (TRS) worked as a sub contractor to Landau Associates on this unique ERH remediation project. This project represents the first of its kind using ERH for site remediation underneath an industrial storm water retention basin full of water. The ...


    By TRS Group, Inc.

  • Case study - Deodorization at waste water treatment plants

    The presence of microorganisms in wastewater causes a decrease in dissolved oxygen levels due consumption by the organisms’ metabolic processes. The more microorganisms there are, the greater the biological demand for oxygen. When this demand exceeds that which can be provided by the exchange of air, an anaerobic process begins, thus creating a reducing environment that favours the ...


    By Bioconservacion SA

  • The assessment of the coke wastewater treatment efficacy in rotating biological contractor

    Coke wastewater is known to be relatively difficult for biological treatment. Nonetheless, biofilm-based systems seem to be promising tool for such treatment. That is why a rotating biological contactor (RBC) system focused on the Anammox process was used in this study. The experiment was divided into two parts with synthetic and then real wastewater. It was proven that it is possible to treat ...


    By IWA Publishing

  • Control of Wastewater Treatment Plants

    Instrumentation, control and automation (ICA) of wastewater treatment systems and sewer networks have attracted much attention since the early 1970s. The developments during the last four decades in on-line instrumentation, computer technology, process understanding and subsequent model development, and control methods have been powerful driving forces for advanced control making ICA ever more ...


    By IWA Publishing

  • Effect of increasing bromide concentration on toxicity in treated drinking water

    Research is increasingly indicating the potential chronic health effects of brominated disinfection by-products (DBPs). This is likely to increase with elevated bromide concentrations resulting from the impacts of climate change, projected to include extended periods of drought and the sudden onset of water quality changes. This will demand more rigorous monitoring throughout distribution ...


    By IWA Publishing

  • A controlled wet-spinning and dip-coating process for preparation of high-permeable TiO2 hollow fiber membranes

    In order to improve the permeate flux of photocatalytic membranes, we present an approach for coupling TiO2 with ceramic hollow fiber membranes. The ceramic hollow fiber membranes with high permeate flux were fabricated by a controlled wet-spinning process using polyethersulfone (PESf) and ceramic powder as precursors and 1-methyl-2-pyrrolidinone as solvent, and the subsequent TiO2 ...


    By IWA Publishing

  • Problems of operation and main reasons for failure of membranes in tertiary treatment systems

    Abstract This paper presents and discuss the results of the long term operation and monitoring of membrane fouling at several full-scale MF/RO water recycling facilities operated by Agbar in Spain. It was demonstrated that membranes are very reliable treatment enabling the production of high-grade recycled water, well disinfected and with the removal of all priority substances. The ...

  • How Clean Water Supplies can Benefit Your Business – From Coca Cola to Unilever

    This month we’re looking at how clean water supplies are becoming integral to corporate success. We live in times of swift change, where urbanisation and population growth are ever increasing and because of this, there’s competition regarding water supply. It used to be seen as a philanthropic act to provide access to WASH (water, sanitation and hygiene), but now ...


    By Partech (Electronics) Ltd.

  • A tiered, integrated biological and chemical monitoring framework for contaminants of emerging concern (CECs) in aquatic ecosystems

    The chemical‐specific risk‐based paradigm that informs monitoring and assessment of environmental contaminants does not apply well to the many thousands of new chemicals that are being introduced into ambient receiving waters. We propose a tiered framework that incorporates bioanalytical screening tools and diagnostic non‐targeted chemical analysis to more effectively monitor for contaminants ...


    By John Wiley & Sons, Ltd.

  • The Cryptosporidium Water Crisis

    One major event to strike the water industry recently, was the Lancashire Cryptosporidium water crisis. Cryptosporidium is a parasite found in livestock, which can have some severe consequences on the gastrointestinal system when ingested. Lancashire has seen 300,000 households suffer from a water contamination incident that’s forced residents to buy bottled water for ...


    By Partech (Electronics) Ltd.

  • Raw water intake monitoring - Case study

    The Situation Hydrocarbons in municipal water supplies, including fresh water and desalination systems, are commonly limited to less than 1 part per million. Surface water from rivers, lakes, or the sea with marine traffic, nearby pipelines, or regular flooding can be contaminated by hydrocarbons. Freshwater treatment systems can be damaged by hydrocarbons or allow them to pass through ...

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