Research

A selection of links to recent research papers available online and may be free to access. 

The conclusions are those of the authors and do not necessarily represent the views of the WMSoc.

Toxoflavin secreted by Pseudomonas alcaliphila inhibits the growth of Legionella pneumophila and Vermamoeba vermiformis – PubMed (nih.gov)

Faucher SP, Matthews S, Nickzad A, Vounba P, Shetty D, Bédard É, Prévost M, Déziel E, Paranjape K. Toxoflavin secreted by Pseudomonas alcaliphila inhibits the growth of Legionella pneumophila and Vermamoeba vermiformis. Water Res. 2022 Jun 1;216:118328. doi: 10.1016/j.watres.2022.118328. Epub 2022 Mar 19. PMID: 35364354.   Highlights Most large outbreaks are caused by cooling towers… Read more »

A new laser device for ultra-rapid and sustainable aerosol sterilization – PubMed (nih.gov)

Vuerich R, Martinelli V, Vodret S, Bertani I, Carletti T, Zentilin L, Venturi V, Marcello A, Zacchigna S. A new laser device for ultra-rapid and sustainable aerosol sterilization. Environ Int. 2022 Jun;164:107272. doi: 10.1016/j.envint.2022.107272. Epub 2022 May 2. PMID: 35526297; PMCID: PMC9060718. This study describes a new laser device able to sterilise droplets containing either… Read more »

Case Report: First Report of Fatal Legionella pneumophila and Klebsiella pneumoniae Coinfection in a Kidney Transplant Recipient – PubMed (nih.gov)

Scaturro M, Girolamini L, Pascale MR, Mazzotta M, Marino F, Errico G, Monaco M, Girolamo A, Rota MC, Ricci ML, Cristino S. Case Report: First Report of Fatal Legionella pneumophila and Klebsiella pneumoniae Coinfection in a Kidney Transplant Recipient. Front Med (Lausanne). 2022 Jun 13;9:912649. doi: 10.3389/fmed.2022.912649. PMID: 35770012; PMCID: PMC9234666.   A very rare case of pulmonary Klebsiella pneumoniae-Legionella… Read more »

Combining Traditional and Molecular Techniques Supports the Discovery of a Novel Legionella Species During Environmental Surveillance in a Healthcare Facility – PubMed (nih.gov)

Girolamini L, Pascale MR, Mazzotta M, Spiteri S, Marino F, Salaris S, Grottola A, Orsini M, Cristino S. Combining Traditional and Molecular Techniques Supports the Discovery of a Novel Legionella Species During Environmental Surveillance in a Healthcare Facility. Front Microbiol. 2022 Jun 13;13:900936. doi: 10.3389/fmicb.2022.900936. PMID: 35770167; PMCID: PMC9234573.   Highlights The difficulty in Legionella isolation, identification and typing… Read more »

Epidemiological and clinical characteristics of legionellosis in Northern Australia, 2010-2021 – PubMed (nih.gov)

Waller C, Freeman K, Labib S, Baird R. Epidemiological and clinical characteristics of legionellosis in Northern Australia, 2010-2021. Commun Dis Intell (2018). 2022 Jun 23;46. doi: 10.33321/cdi.2022.46.34. PMID: 35739069.   Objective: This study describes characteristics of the legionellosis cases occurring between 2010 and 2021 in the Northern Territory (NT), Australia.     Highlights A retrospective review… Read more »

Recent insights into greywater treatment: a comprehensive review on characteristics, treatment technologies, and pollutant removal mechanisms – PubMed (nih.gov)

He Z, Li Y, Qi B. Recent insights into greywater treatment: a comprehensive review on characteristics, treatment technologies, and pollutant removal mechanisms. Environ Sci Pollut Res Int. 2022 Jun 1. doi: 10.1007/s11356-022-21070-8. Epub ahead of print. PMID: 35641750.   Highlights With rapid socio-economic and industrial development, the problem of water shortage is becoming increasingly serious,… Read more »

Explosive outbreak of SARS-CoV-2 Omicron variant is associated with vertical transmission in high-rise residential buildings in Hong Kong – PubMed (nih.gov)

  Cheng VC, Wong SC, Au AK, Zhang C, Chen JH, So SY, Li X, Wang Q, Lu KK, Lung DC, Wai-Man Chuang V, Schuldenfrei E, Siu GK, To KK, Li Y, Yuen KY. Explosive outbreak of SARS-CoV-2 Omicron variant is associated with vertical transmission in high-rise residential buildings in Hong Kong. Build Environ. 2022… Read more »

Faucet aerator design influences aerosol size distribution and microbial contamination level

Benoit MÈ, Prévost M, Succar A, Charron D, Déziel E, Robert E, Bédard E. Sci Total Environ. 2021 Jun 25;775:145690. doi: 10.1016/j.scitotenv.2021.145690. Epub 2021 Feb 6. PMID: 33631571.   Highlights Tap aerators can spread contaminated aerosol particles in the environment. Aerosol particles characteristics and production differ with different types of aerators. Aerator fouling can lead… Read more »

Quantification of Legionella pneumophila by qPCR and culture in tap water with different concentrations of residual disinfectants and heterotrophic bacteria

Donohue MJ. Sci Total Environ. 2021 Jun 20;774:145142. doi: 10.1016/j.scitotenv.2021.145142. Epub 2021 Feb 6. PMID: 33610980.   Highlights Culture underestimates L. pneumophiladetection frequency and concentration. Quantitative PCR is more sensitive than culture for L. pneumophiladetection. Free‑chlorine residual is a good indicator of microbiological quality control. Monochloramine residual is not a good indicator of microbiological quality control. For chloramine water,… Read more »

Legionella and Biofilms-Integrated Surveillance to Bridge Science and Real-Field Demands

Pereira A, Silva AR, Melo LF. Microorganisms. 2021 Jun 3;9(6):1212. doi: 10.3390/microorganisms9061212. PMID: 34205095; PMCID: PMC8228026.   Highlights Legionella control of water systems is a multivariable problem. It is unfeasible to assume that Legionella might be eradicated from water systems – prevention is key. Field-based trials are an important component of Legionella study but often… Read more »

Diary Dates & Events

Grime Scene

ANNOUNCING OUR NEW GRIME SCENE COMPETITION:

Following on from the successful Grime Scene competition, we have decided to continue the theme for another year, but with a twist. This year, we are asking for photographs of the grimiest pictures you can find accompanied with another photograph of how the ‘scene’ has been improved by your maintenance or cleaning.


We will display the photographs in each of the Waterline editions throughout 2024. The ‘most improved’ picture will be chosen by WMSoc members via an online vote. The winner will receive a £25 Amazon Gift Voucher after the Winter 2024/25 edition has been published.


Please send your photographs to:
[email protected].


Product & Service Spotlight

Secondary disinfection options from B & V Chemicals:

We can offer our customers several secondary disinfection options to control issues like biofilm formation and harmful bacteria proliferation

Genox or chlorine dioxide
For water usage above 60m³/day, we recommend installing either a chlorine dioxide unit or a Genox unit. The Genox units generate hypochlorous acid from brine electrolysis with running costs as low as 4.0 pence/m³.

Ultralox 40 or SuPerSil
For smaller systems, continuous dosing with Ultralox 40, a hypochlorous acid solution, is a cost-effective alternative with few safety risks.
Similarly, silver peroxide dosing suits low to medium water usage systems.

For more information contact [email protected]

How the NEW SolidTek® Biocide Feeder Package will BENEFIT YOU

SolidTek® has launched its NEW Biocide Feeder which is functional, compact, and environmentally-friendly.

Designed for use with SolidTek’s® enhanced bromine biocide, BromTek, it offers multiple benefits:

SAFER
Reduced exposure to fumes and bromine dust (non-pressurised system).

EFFECTIVE
Use with field proven mixed hydantoin biocide - better performance than standard bromine tablets.

COMPACT
Wall mounted reducing footprint of installation.

QUICK & EASY
Charge with product in under 5 minutes without isolation from the system.
SUPPORT

Product calculators and tech support available.

Lovibond MD640 Photometer (PTSA & Fluorescein capable)

Product Spotlight Drop Test Kits

How many times have you heard … ‘we’re not sure what the system volume is’. A common problem which can be expensive - wasting chemical over dosing, or underdosing so the treatment is ineffective (i.e. shock dosing a biocide). The MD640 photometer has PTSA & Fluorescein capability built in. Simply use our System Checkers to add to an unknown system and read a PTSA or Fluorescein levels to accurately identify the system volume.

The Hydrosense PRO range

Hydrosense

The Hydrosense PRO range pioneers Legionella pneumophila detection, the cause of over 97% of Legionnaires’ disease outbreaks, by identifying all the serogroups 1-15 of this dangerous Legionella species. This easy-to-use, highly sensitive test uses unique filtration, offering a three-line test result that distinguishes between serogroup 1 and serogroups 2-15 within 25 minutes. The water test has a level of detection of 100 CFU/L and swab tests detect 200 CFU per swabbed area, providing crucial, rapid insights for water safety management.

TME Thermometers

Save time and money on your ACoPL8 testing with TME’s innovative legionella solutions.
• Perform faster temperature tests with our MM2008 Thermometer with integral timer for running of hot and cold water taps.
• Simplify concealed TMV testing with our TC Wall Port, a remote access point for temperature sensors you can install yourself. Once in place, take instant readings from a more convenient location – no more climbing ladders or removing panelling.
• Update to paperless recording with our MM7000-2D Barcode Scanning Bluetooth Thermometer.
• Get FREE UKAS traceable calibration certificates.
• Visit our NEW website for 25% OFF all online orders placed by 30th June 2024.

[email protected]

01903 700651