The Importance of Cleanliness in Hotels

The entrance is one of the most visible and critical starting points in creating the first positive impression for your guests. Customer experience begins when they enter the hotel, and is continued with their check-in process at the hotel reception area.

Quality floor care enhances your brand image and helps show the health and safety guarantees that are offered to your guests. thus radiating a clean, fresh and pleasant atmosphere through Scenting Premium, can help improve service quality and strengthen your hotel brand image.

Surprise your guests by providing hand hygiene facilities by presenting hand sanitizer units that are available when they enter and exit your hotel.

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Harnessing Sunlight to Pull Hydrogen From Wastewater

Hydrogen is a critical component in the manufacture of thousands of common products from plastic to fertilizers, but producing pure hydrogen is expensive and energy intensive. Now, a research team at Princeton University has harnessed sunlight to isolate hydrogen from industrial wastewater.

In a paper published Feb. 19 in the journal Energy & Environmental Science, the researchers reported that their process doubled the currently accepted rate for scalable technologies that produce hydrogen by splitting water.

The technique uses a specially designed chamber with a “Swiss-cheese” black silicon interface to split water and isolate hydrogen gas. The process is aided by bacteria that generate electrical current when consuming organic matter in the wastewater; the current, in turn, aids the water splitting process. The team, led by Zhiyong Jason Ren, professor of civil and environmental engineering and the Andlinger Center for Energy and the Environment, chose wastewater from breweries for the test. They ran the wastewater through the chamber, used a lamp to simulate sunlight, and watched the organic compounds breakdown and the hydrogen bubble up.

The process “allows us to treat wastewater and simultaneously generate fuels,” said Jing Gu, a co-researcher and assistant professor of chemistry and biochemistry at San Diego State University. The researchers said the technology could appeal to refineries and chemical plants, which typically produce their own hydrogen from fossil fuels, and face high costs for cleaning wastewater. Historically, hydrogen production has relied on oil, gas or coal, and an energy-intensive method that involves processing the hydrocarbon stock with steam. Chemical manufacturers then combine the hydrogen gas with carbon or nitrogen to create high-value chemicals, such as methanol and ammonia. The two are ingredients in synthetic fibers, fertilizer, plastics and cleaning products, among other everyday goods. Although hydrogen can be used as a vehicle fuel, the chemical industry is currently the largest producer and consumer of hydrogen. Producing chemicals in highly industrialized countries requires more energy than producing iron, steel, metals and food, according to a 2016 report from the U.S. Energy Information Administration. The report estimates that producing basic chemicals will continue to be the top industrial consumer of energy over the next two decades. “It’s a win-win situation for chemical and other industries,” said Lu Lu, the first author on the study and an associate research scholar at the Andlinger Center. “They can save on wastewater treatment and save on their energy use through this hydrogen-creation process.”

According to the researchers, this is the first time actual wastewater, not lab-made solutions, has been used to produce hydrogen using photocatalysis. The team produced the gas continuously over four days until the wastewater ran out, which is significant, the researchers said, because comparable systems that produce chemicals from water have historically failed after a couple hours of use. The researchers measured the hydrogen production by monitoring the amount of electrons produced by the bacteria, which directly correlates to the amount of hydrogen produced. The measurement was at the high end for similar lab experiments and, Ren said, twice as high as technologies with the potential to scale for industrial use. Ren said he sees this technology as scalable because the chamber used to isolate the hydrogen is modular, and several can be stacked to process more wastewater and produce more hydrogen. Though a lifecycle analysis has not yet been done, the researchers said the process will at least be energy neutral, if not energy positive, and eliminates the need for fossil fuels to create hydrogen. The researchers said they will likely experiment with producing larger amounts of hydrogen and other gases in the future, and look forward to moving this technology to industry.

Source : Princeton University, Engineering School and sciencedaily.

Cleaning equipment and its importance in the control of Listeria in food production

Listeria monocytogenes is a bacterium which can give rise to food poisoning and so is a serious food safety concern in food production.

In 2015 according to Public Health England, there were 169 cases of listeriosis in England and Wales. This might not sound many, but the mortality rate for this pathogen is high at approximately 30% of cases.
The elderly and unborn / newly-born babies are most vulnerable to the disease. Listeria monocytogenes is the only member of the genus Listeria which is recognised as a human food pathogen. However, all Listeria species have the same growth requirements, and so the presence of a ‘non-hazardous’ Listeria can be indicative of the presence of Listeria monocytogenes.

Listeria is found in the general environment and so can be associated with any food that is grown in association with the soil (e.g. salad leaves). This bacterium can:

  • Grow – albeit slowly – at chill temperatures and is especially a concern for chilled ready-to-eat (RTE) foods.
  • Inhabit and persist in the food production environment. It thrives in conditions where there is plenty of water
  • Produce protective mechanisms (for example ‘biofilms’) to help it survive.

These characteristics enable Listeria and Listeria monocytogenes to cross-contaminate foods that have undergone a process to eradicate vegetative pathogens (e.g. cooking), and so it can pose challenges to food manufacturers.

Where to look for Listeria
When monitoring for the presence of Listeria in a food production facility there are key areas to look at. Two of the most frequently contaminated are:

  1. Drains are the prime place to look for this bacterium, because each time the production area is cleaned, residue leaves via the drains.
  2. A close second on the list of places to look is ‘cleaning equipment’ such as brushes and squeegees, which are used as part of any clean-down process. Most, if not all, cleaning equipment will be used as part of routine cleaning.

Cleaning equipment – preventing cross contamination

Cleaning equipment is often forgotten when considering how to maintain a Listeria-free production environment.

  1. Cleaning equipment should itself be cleaned after each use to prevent it being a potential route for cross contamination.
  2. Storing cleaning equipment such as squeegees in a sanitiser bath when they are not in use will help to reduce cross contamination. This does require the sanitiser solution to be remade on a very regular basis, as the presence of organic material on the cleaning equipment can neutralise the sanitising agent.
  3. Cleaning equipment should be stored or hung up when not in use. If equipment is left on surfaces such as the floor, it can remain wet and can support growth of any Listeria cells present.
  4. Colour coding of cleaning equipment is frequently used to ensure that dedicated cleaning equipment is used only where it is supposed to be. Segregation can be by area of the production facility, as well as ‘zone’. For example, cleaning equipment used for product-contact surfaces are often separated from floor-contact cleaning equipment by colour code.
  5. When cleaning equipment becomes worn out, it can readily harbour bacteria such as Listeria. Consequently, it should be replaced regularly.

Source : Vikan

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Copper-based alternative for next-generation electronics


Japanese scientists have developed a technique to transform a copper-based substance into a material that mimics properties of precious and pricey metals, such as gold and silver. The new medium, made of copper nanoparticles (very small copper-based structures) has promising applications in the production of electronic devices that would otherwise depend on expensive gold and silver counterparts. It is also suitable in the fabrication of electronic components using printing technologies that are recognized as environmentally friendly production methods.

The study was published on January 29 in Scientific Reports, an online open access journal managed by Nature.

The development of the Internet of Things (IoT) has quickly increased the demand for thin and wearable electronic devices. For example, IoT depends on communication between devices, which requires antennas that have so far required expensive gold and silver-based metal composites.

To date, existing techniques for the preparation of copper nanoparticles have not been ideal as they resulted in impurities attaching to the material. Since these impurities could only be removed via extremely high temperatures, copper nanoparticles that were created at room temperature were impure and thus could not solidify into usable parts. Until now, this has been one of the hurdles to creating a more cost-effective alternative to gold and silver parts in electronic devices.

The joint study between researchers at Tohoku University and Mitsui Mining & Smelting Co., Ltd in Tokyo reports the successful synthesis of copper nanoparticles with the ability of solidifying at much lower temperatures while remaining pure. The team has altered the structure of the copper nanoparticles and rendered them more stable so that they do not degrade at low temperatures.

“Copper has been an attractive alternative material in the preparation of electric circuits. The most important part of using copper is altering it so that it solidifies at low temperatures. So far, that has been difficult because copper readily interacts with the moisture in the air and degrades, which turns into unstable nanoparticles. With the methods used in this study that alter the structure of the carbon and thereby making it more stable, we have successfully overcome this instability issue,” adds Kiyoshi Kanie, Ph.D., associate professor at the Institute of Multidisciplinary Research for Advanced Materials of Tohoku University.

The researchers hope to expand the application of their copper-based nanoparticles beyond just electronics. They believe that this material will be useful in other sectors as well. “Our method effectively created copper nanoparticle-based materials that can be utilized in various types of on-demand flexible and wearable devices that can be fabricated easily via printing processes at a very low cost,” Kanie adds.

Source : Sciencedaily, Tohoku University, Innovationtoronto

Industrial Vacuum Truck Solutions

was founded in 1936 with the entrepreneurial spirit of Angelo Sibilia. The company’s first industrial reform began in 1947, with the construction of a cast iron foundry that. Since 1993, the technical direction of Sibilia was taken by Alberto Sibilia, the founder’s son, who quickly brought Sibilia to a position of worldwide leadership in the Industrial Vacuum Cleaner sector. Today we are present throughout the entire world throughout an extensive network of agencies and partners.


Certification number: 02652

ISO 9001 : 2008
Every vacuum uniti s subjected to rigorous examinations and is tested under the most heavy conditions, in order to meet the highest quality standard. Most of Sibilia’s vacuum cleaners undergo inspections by external and international boards who test the following parameters: -filtration efficiency -efficiency in the waste disposal of toxicant or dangerous material -protection against electrostatic discharges -work suitability inside explosion risk zones (Atex)

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