![Problem they wanted to solve: Legionella contamination](http://s1.studyres.com/store/data/007248773_1-cd1427cf77ba7dc3d1430afe9e31cc86-300x300.png)
Problem they wanted to solve: Legionella contamination
... Installation: 1,5 ppm of FAC residual at start and maintaining 1,0 ppm in general. Legionella is controlled by analysis. ...
... Installation: 1,5 ppm of FAC residual at start and maintaining 1,0 ppm in general. Legionella is controlled by analysis. ...
Quaternary Ammonium Compounds
... What’s This Mean? • Chemical structure determines chemical behavior • Will be strongly cationic, so will attach to surfaces, both organic and inorganic • Compound will be stable and hard to break, so has long lasting biocidal effect • Anions, e.g. soaps or detergents, can attach to it, and hard wat ...
... What’s This Mean? • Chemical structure determines chemical behavior • Will be strongly cationic, so will attach to surfaces, both organic and inorganic • Compound will be stable and hard to break, so has long lasting biocidal effect • Anions, e.g. soaps or detergents, can attach to it, and hard wat ...
Introduction - 1 Independent Study
... 4. List and describe the three types of non-living infectious agents. 5. What are prions? 6. In the name Bacillus anthracis - which part indicates the genus and which the species? 7. Which is most closely related - organisms in the same genus or organisms in the same species? ...
... 4. List and describe the three types of non-living infectious agents. 5. What are prions? 6. In the name Bacillus anthracis - which part indicates the genus and which the species? 7. Which is most closely related - organisms in the same genus or organisms in the same species? ...
Oxilite - INNO
... salt solution elector-chemically to create the mixture of powerful, but natural, disinfecting products that make up Oxilite. ...
... salt solution elector-chemically to create the mixture of powerful, but natural, disinfecting products that make up Oxilite. ...
Prokaryotes:
... Food Direct (skin contact, blood, and other body fluids) Insects and other hosts such as deer tick (Lyme). ...
... Food Direct (skin contact, blood, and other body fluids) Insects and other hosts such as deer tick (Lyme). ...
WISTR Content Teaching Goals: Microbial Life
... 7. Prokaryotes reproduce asexually or clonally (simple cell division) but have many unique ways of assuring new genetic combinations, including gene sharing between cells. 8. Prokaryotes are extremely diverse metabolically. Prokaryotes can live without oxygen in a variety of ways, can live at temper ...
... 7. Prokaryotes reproduce asexually or clonally (simple cell division) but have many unique ways of assuring new genetic combinations, including gene sharing between cells. 8. Prokaryotes are extremely diverse metabolically. Prokaryotes can live without oxygen in a variety of ways, can live at temper ...
Efficacy, Selection and Use of Disinfectants and Detergents in
... disinfectants have a label contact time of 10 minutes but multiple scientific studies have demonstrated the efficacy of hospital disinfectants against pathogens with a contact time of at least 1 minute. By law, the user must follow all applicable label instructions on EPA-registered products. If the ...
... disinfectants have a label contact time of 10 minutes but multiple scientific studies have demonstrated the efficacy of hospital disinfectants against pathogens with a contact time of at least 1 minute. By law, the user must follow all applicable label instructions on EPA-registered products. If the ...
File
... floating in the cytoplasm. There is no organized ‘nucleus’. Bacteria – are the oldest and most abundant group of living organisms. Some have fossil records! Some lived in harshest conditions (like our early Earth). Cyanobacteria (also called blue-green algae, but are NOT algae persay) helped, throug ...
... floating in the cytoplasm. There is no organized ‘nucleus’. Bacteria – are the oldest and most abundant group of living organisms. Some have fossil records! Some lived in harshest conditions (like our early Earth). Cyanobacteria (also called blue-green algae, but are NOT algae persay) helped, throug ...
How drinkwater is purified in The Netherlands?
... chlorine or its compounds such as chloramine or chlorine dioxide. Chlorine is a strong oxidant that rapidly kills many harmful microorganisms. Because chlorine is a toxic gas, there is a danger of a release associated with its use. This problem is avoided by the use of sodium hypochlorite, which is ...
... chlorine or its compounds such as chloramine or chlorine dioxide. Chlorine is a strong oxidant that rapidly kills many harmful microorganisms. Because chlorine is a toxic gas, there is a danger of a release associated with its use. This problem is avoided by the use of sodium hypochlorite, which is ...
Sterilization and Disinfection Group 5 Meynard Guanlao Euodia
... as well as nitrogen interactions on amino acids. Even low concentrations have dramatic effect on the activities of metabolic enzymes in vitro. Direct protein degradation into smaller peptides and precipitation have shown and are believed to be the main mode of its action against prions. Other observ ...
... as well as nitrogen interactions on amino acids. Even low concentrations have dramatic effect on the activities of metabolic enzymes in vitro. Direct protein degradation into smaller peptides and precipitation have shown and are believed to be the main mode of its action against prions. Other observ ...
Infection Control Terms
... widespread outbreak of a disease within a population, group or area. Example: a widespread outbreak of measles or influenza. • Pandemic - an outbreak of a disease occurring over a large ...
... widespread outbreak of a disease within a population, group or area. Example: a widespread outbreak of measles or influenza. • Pandemic - an outbreak of a disease occurring over a large ...
October 15, 2014 TECHNICAL MEMO
... Use a U.S. Environmental Protection Agency (EPA)-registered hospital disinfectant with a label claim for a non-enveloped virus (e.g., Norovirus, Rotavirus, Adenovirus, Poliovirus) to disinfect environmental surfaces in rooms of patients with suspected or confirmed Ebola virus infection. Although the ...
... Use a U.S. Environmental Protection Agency (EPA)-registered hospital disinfectant with a label claim for a non-enveloped virus (e.g., Norovirus, Rotavirus, Adenovirus, Poliovirus) to disinfect environmental surfaces in rooms of patients with suspected or confirmed Ebola virus infection. Although the ...
Sterilization, Disinfection and Antibacterial Agents
... Phenolics are chemical derivatives of phenol Destroy plasma membranes and denature proteins. Advantages: Stable, persist for long times after applied, and remain active in the presence of organic compounds. ...
... Phenolics are chemical derivatives of phenol Destroy plasma membranes and denature proteins. Advantages: Stable, persist for long times after applied, and remain active in the presence of organic compounds. ...
Water Treatment Guided Notes
... E. Removes dirt and other particles suspended in water. Alum & other chemicals are added to water to form tiny sticky particles called "floc" which attract the dirt particles ...
... E. Removes dirt and other particles suspended in water. Alum & other chemicals are added to water to form tiny sticky particles called "floc" which attract the dirt particles ...
Study Guide 1 - The Microbial World Chpt 1
... Independent Study –The Microbial World (Chapter 1) I. ...
... Independent Study –The Microbial World (Chapter 1) I. ...
sterilization
... As often in history of medicine: Change of practice depended on the persistence of John Lister 1870, He introduced vigorous application of phenol in surgery, for dressing wounds, for sterilization of instruments ...
... As often in history of medicine: Change of practice depended on the persistence of John Lister 1870, He introduced vigorous application of phenol in surgery, for dressing wounds, for sterilization of instruments ...
Controlling Microbial Growth
... Effect happens in a reasonable time Non-toxic or non-corrosive to materials Water-soluble, easy to prepare, stable ...
... Effect happens in a reasonable time Non-toxic or non-corrosive to materials Water-soluble, easy to prepare, stable ...
PDF
... Taste, smell and colour: Some people do not like the taste or smell of chlorinated water; does not change the colour Ease of use: Follow manufacturer’s instructions for specific products ...
... Taste, smell and colour: Some people do not like the taste or smell of chlorinated water; does not change the colour Ease of use: Follow manufacturer’s instructions for specific products ...
Disease and Disease-Producing Organisms Part 1
... Explain methods through which microorganisms can ...
... Explain methods through which microorganisms can ...
preventing-disease-1
... The skin secretes sweat and sebum which contain substances that destroy bacteria We also have our own flora of harmless bacteria called COMMENSALS They compete more successfully than pathogens for the small amount of nutrients on the skin They are also found in the mouth, respiratory tract, vagina a ...
... The skin secretes sweat and sebum which contain substances that destroy bacteria We also have our own flora of harmless bacteria called COMMENSALS They compete more successfully than pathogens for the small amount of nutrients on the skin They are also found in the mouth, respiratory tract, vagina a ...
the first line of defence - Teachnet UK-home
... • The body has two barriers against microorganisms • There are physical barriers like the skin and the hairs in the nose • The body also has chemical barriers like the acid in the stomach and a chemical in the tears ...
... • The body has two barriers against microorganisms • There are physical barriers like the skin and the hairs in the nose • The body also has chemical barriers like the acid in the stomach and a chemical in the tears ...
Chapter 1: The Microbial World and You
... B. Hydrogen Peroxide: Used as an antiseptic. Not good for open wounds because quickly broken down by catalase present in human cells. Effective in disinfection of inanimate objects. Sporicidal at higher temperatures. Used by food industry and to disinfect contact lenses. C. Benzoyl Peroxid ...
... B. Hydrogen Peroxide: Used as an antiseptic. Not good for open wounds because quickly broken down by catalase present in human cells. Effective in disinfection of inanimate objects. Sporicidal at higher temperatures. Used by food industry and to disinfect contact lenses. C. Benzoyl Peroxid ...
Disinfectant
![](https://commons.wikimedia.org/wiki/Special:FilePath/Disinfection_with_mop.jpg?width=300)
Disinfectants are antimicrobial agents that are applied to non-living objects to destroy microorganisms that are living on the objects. Disinfection does not necessarily kill all microorganisms, especially resistant bacterial spores; it is less effective than sterilization, which is an extreme physical and/or chemical process that kills all types of life. Disinfectants are different from other antimicrobial agents such as antibiotics, which destroy microorganisms within the body, and antiseptics, which destroy microorganisms on living tissue. Disinfectants are also different from biocides — the latter are intended to destroy all forms of life, not just microorganisms.Disinfectants work by destroying the cell wall of microbes or interfering with the metabolism.Sanitizers are substances that simultaneously clean and disinfect. Disinfectants are frequently used in hospitals, dental surgeries, kitchens, and bathrooms to kill infectious organisms.Bacterial endospores are most resistant to disinfectants, but some viruses and bacteria also possess some tolerance.In wastewater treatment, a disinfection step with chlorine, ultra-violet (UV) radiation or ozonation can be included as tertiary treatment to remove pathogens from wastewater, for example if it is to be reused to irrigate golf courses. An alternative term used in the sanitation sector for disinfection of waste streams, sewage sludge or fecal sludge is sanitisation or sanitization.