After 25 years, it was finally time to replace the old ROTAN pumps. They say that on average, a pump’s life is about 10 – 15 years if you overhaul and maintain the pump properly, but in the case of the pumps used back in 1990 when Chartworld Shipping Corporation, Greece, built the cargo ship Ditlev Reefer, the pump life was 25 years. DESMI has a long history of supplying ...
We utilise standard survey techniques to provide reliable long-term information on the health of coral reefs Reef Health Surveys We have been monitoring the status of the Bay of Ranobe’s coral reef system since 2004. Our long term surveying programme monitors various ecological parameters across the bay to provide an assessment of coral reef health. The surveys are conducted across five ...
For the past 15 years, the waste management industry has done a commendable job in responding to public concern over environmental issues, especially the demand for more recycling. However, while waste reduction strategies are crucial, Canada's booming economy has meant increased production of construction and demolition (C&D) and institutional, commercial and industrial (IC&I) waste. As ...
Introduction Since the early 1990’s air quality in enclosed spaces such as office buildings, homes and automobiles has become a major environmental concern. The concern is that man made materials used in these environments release volatile (VOC) and semivolatile organic compound (SVOC) reducing air quality in these environments. Manufactures of materials used in these environments have ...
National Doctor’s Day is celebrated every year on March 30th. The first Doctor’s Day observance was March 30th, 1933, in Winder, Georgia. This first observance included mailed greeting cards and flowers placed on the graves of deceased physicians. In 1990, legislation was passed to establish a national Doctor’s Day. The Covid-19 pandemic has pushed the limits of healthcare ...
A note from A V Systems: There are currently thousands of software programs on today’s market that can handle some or all aspects of Environmental, Health and Safety issues. Choosing which one is best suited for your particular needs can be both difficult and time consuming. A V Systems would like to help you through that process by giving you some important tips on what to consider when ...
The objective of the study was to evaluate the survival response of multi-drug resistant enteropathogenic Escherichia coli and Salmonella paratyphi to the salinity fluctuations induced by a saltwater barrier constructed in Vembanadu lake, which separates the lake into a freshwater dominated southern and brackish water dominated northern part. Therefore, microcosms containing freshwater, ...
The study of an industrial unit of biotrickling filter for the treatment of the exhaust gases of a flexographic facility was investigated over a 2-year period with the objective to meet the volatile organic compound (VOC) regulatory emission limits. Increasing the water flow rate from 2 to 40 m3 h−1 improved the performance of the process, meeting the VOC regulation when 40 m3 h−1 were used. An ...
How to Troubleshoot Centrifugal Fan Air Volume, Pressure, and Power Consumption Centrifugal fan troubleshooting is definitely a science. But to application engineers like us, there’s also an art to it. The trick is knowing what to measure and the system effects that can influence those measurements. And it all depends on the specific application. The really short answer to the question of ...
Studies show a direct correlation between heightened risk of infections and low star ratings. Reducing airborne transmission is key to keeping residents safe and healthy - and securing your facility’s future. Complete your infection prevention protocol and improve your quality of care with PuraShield - because air quality is care quality. To see video, please click ...
On August 23, 2017, Michael Wenk, M.S., Senior Regulatory Consultant with Bergeson & Campbell, P.C. (B&C®), was quoted by Chemical Watch discussing Argentina’s implementation of the UN’s Globally Harmonised System (GHS) for the classification and labelling of chemicals. Michael Wenk, senior regulatory consultant at international compliance specialists Acta, told Chemical ...
What is telemedicine? Telemedicine is sharing information about a patient’s health outside of a traditional in-person visit with a doctor. Telemedicine began in the 1950s when hospital systems tried to find ways to share information through the telephone. Telemedicine was used between doctors and their patients, especially when connecting a patient to a specialist at a distance. The ...
Often, when we talk about Remote Monitoring, we’re talking about having access to your monitoring system when you are not on site. That is, it’s for monitoring for when you are remote from the system. But what about when it’s the system that is remote? Whether it’s a tank several miles up hill from a control house or pressure transducers along a pipeline, there are many ...
Airit 70 aerator is fast and easy to install, even during the winter. The first photo shows Airit 70 at Lohja's Pikkujärvi where it was photographed immediately after installation. The second photo shows Airit 70 in operation at Espoo's Luukinjärvi. The day was extremely cold - the temperature was some -30°C ...
Bergeson & Campbell, P.C. (B&C®) is seeking a manager to join our consortia management firm B&C® Consortia Management, L.L.C. (BCCM). This position will be based in our Washington, D.C. location, although telework arrangements may be considered for the right candidate in the greater Washington, D.C. area. The successful candidate will report to BCCM’s Vice President, ...
The decay rates of enteric waterborne pathogens were evaluated following the introduction of Yersinia enterocolitica, Salmonella enterica, Campylobacter jejuni and Arcobacter butzleri into river water at different temperatures (5, 15 and 25°C) for a period of 28 days. To improve the accuracy of the results a molecular viability assay, long amplicon propidium monoazide-polymerase chain ...
PureAire makes an Oxygen monitor for laboratories where nitrogen, helium, argon, carbon dioxide, and any cryogenic gases are stored. The O2 monitors are a standalone wall mounted unit with a built in audible alarm. The monitor utilizes a 10 + year Zirconium Oxide (ZrO2) sensor and has a backlit digital display showing readings of 0-25% range. PureAire has sold there O2 monitors while combining a ...
DESMI has signed a fire-fighting package contract for a new building project at 3. MAJ shipyard Croatia. The project is a series of Great Lakes self unloading bulk carriers, (hull numbers 732/733/527/528/529) classed by LR, and registered under Canadian flag. The fire-fighting system package includes: 1. Accommodation water sprinkler system for cabins and service space 2. Engine room local ...
The ultrasonic mixing of cement paste offers great benefits for precast molding, drycast and concrete plants. The advantages are shorter initial and final set time, lower dosage of superplasticizer, faster and more complete hydration as well as higher compressive strength. Traditional concrete mixing technologies, such as "on-road-mixing" or rotary mixers provide insufficient mixing action to ...
The aim of this study was to determine a short-term and long-term effect of temperature on the anammox rate and determination of temperature coefficients in the Arrhenius and Ratkowsky equations. The short-term effects of temperature on the anammox granular biomass were investigated in batch tests at ten different temperatures in the range of 10–55 °C. The maximum overall nitrogen removal ...