Slide 1
... The vast majority of surface water on the planet is neither potable (fit for drinking) nor toxic. Approximately 25% of the world’s population has no access to potable water. http://www.youtube.com/watch?v=_R_vpNQ0fJc ...
... The vast majority of surface water on the planet is neither potable (fit for drinking) nor toxic. Approximately 25% of the world’s population has no access to potable water. http://www.youtube.com/watch?v=_R_vpNQ0fJc ...
Water Quality notes
... oxygen concentration less than 5mg/L is put under stress. A low dissolved oxygen concentration is usually an indicator of too many nutrients being introduced into the water. (Eutrophication) ...
... oxygen concentration less than 5mg/L is put under stress. A low dissolved oxygen concentration is usually an indicator of too many nutrients being introduced into the water. (Eutrophication) ...
DRINKING WATER TREATMENT
... dissolves minerals and carries small particles of soil. Streams can carry sediment, human-made pollutants and other materials. Once water is used by humans, it picks up even more pollutants and impurities before it is returned to nature. The need for a supply of clean water required water treatment ...
... dissolves minerals and carries small particles of soil. Streams can carry sediment, human-made pollutants and other materials. Once water is used by humans, it picks up even more pollutants and impurities before it is returned to nature. The need for a supply of clean water required water treatment ...
Vaccination, Environmental Health, and Polio Control
... Contamination of water sources from cattle fields Infectious stage is the extremely resistant environmental stage (oocyst) • Resistant to chlorine disinfection • Diarrheal disease that can become chronic in immunosuppressed people ...
... Contamination of water sources from cattle fields Infectious stage is the extremely resistant environmental stage (oocyst) • Resistant to chlorine disinfection • Diarrheal disease that can become chronic in immunosuppressed people ...
The Water Cycle
... Storage – water can be stored as a solid (mountain snow packs, glacial ice) and as a liquid (water in lakes/ponds/ocean) Runoff – water that flows along the surface of the Earth back to the oceans ...
... Storage – water can be stored as a solid (mountain snow packs, glacial ice) and as a liquid (water in lakes/ponds/ocean) Runoff – water that flows along the surface of the Earth back to the oceans ...
WasteWater Treatment Plants
... • Usually refers to sewage treatment, or domestic wastewater treatment • Process of removing contaminants from wastewater, both runoff and domestic, using the same processes of purification that would occur in a natural aquatic ...
... • Usually refers to sewage treatment, or domestic wastewater treatment • Process of removing contaminants from wastewater, both runoff and domestic, using the same processes of purification that would occur in a natural aquatic ...
Hobbs Pond Enterococcus counts – Most Probable Number/100ml
... quality of water. However, these aren't generally what get people sick. Other bacteria, viruses, and parasites are usually the culprits. Because it is so much more expensive and time consuming to do so, actual pathogens are virtually never tested for. What are these indicators? ...
... quality of water. However, these aren't generally what get people sick. Other bacteria, viruses, and parasites are usually the culprits. Because it is so much more expensive and time consuming to do so, actual pathogens are virtually never tested for. What are these indicators? ...
Document
... clouds. Mainly as rain, but sometimes as snow and hail. • This is called precipitation. ...
... clouds. Mainly as rain, but sometimes as snow and hail. • This is called precipitation. ...
MATERIAL SAFETY DATA SHEET
... DECOMPOSITION PRODUCTS: FIRE OR MIXING WITH INCOMPATIBLE MATERIALS MAY PRODUCE CHLORINE, OXIDES OF CARBON AND OTHER TOXIC OR IRRITATING FUMES. POSSIBILITY OF HAZARDOUS REACTIONS: AVOID MIXING DIRECTLY WITH ACIDS. ...
... DECOMPOSITION PRODUCTS: FIRE OR MIXING WITH INCOMPATIBLE MATERIALS MAY PRODUCE CHLORINE, OXIDES OF CARBON AND OTHER TOXIC OR IRRITATING FUMES. POSSIBILITY OF HAZARDOUS REACTIONS: AVOID MIXING DIRECTLY WITH ACIDS. ...
Gp_Purbashree - Indian Institute of Technology Delhi
... intensity over UV reactors, using CFD so as to achieve simple, reliable and cheap in situ process control systems. ...
... intensity over UV reactors, using CFD so as to achieve simple, reliable and cheap in situ process control systems. ...
Recycled water treatment processes
... The water is disinfected by chlorination and/or ultra violet light, depending on the end use. ...
... The water is disinfected by chlorination and/or ultra violet light, depending on the end use. ...
Water Resources and Pollution
... • Introduce grey water systems where water that is not contaminated by residential sewage or industrial chemicals is diverted and collected for use on lawns, washing cars, flushing toilets • Use low-flow showerheads and low-volume toilets • Recycle industrial-use water within the factory ...
... • Introduce grey water systems where water that is not contaminated by residential sewage or industrial chemicals is diverted and collected for use on lawns, washing cars, flushing toilets • Use low-flow showerheads and low-volume toilets • Recycle industrial-use water within the factory ...
Water: The Perfect Solution . . . for Too Many
... Sugar-sweetened beverages (pop, juices, sports drinks, sweet teas, and other sweetened, caffeine-based drinks) are the largest source of added sugars in the diets of U.S. youth, according to the American Dietetic Association. On average, a 12-ounce serving of pop contains more than 110 calories and ...
... Sugar-sweetened beverages (pop, juices, sports drinks, sweet teas, and other sweetened, caffeine-based drinks) are the largest source of added sugars in the diets of U.S. youth, according to the American Dietetic Association. On average, a 12-ounce serving of pop contains more than 110 calories and ...
Monitoring for Sewage - Downtown Magnets High School
... • Ocean = high salinity • River = low salinity • Changing levels will kill orgs in water. ...
... • Ocean = high salinity • River = low salinity • Changing levels will kill orgs in water. ...
Control Measures for Infectious Diseases
... • Physical – Heat, pasteurize, autoclave – Time/temperature dependence ...
... • Physical – Heat, pasteurize, autoclave – Time/temperature dependence ...
Water pollution
... is slow enough, toxic compounds break down or are removed by chemical and biological processes in the water column, and pathogens lose their viability or are consumed by other organisms in the aquatic food chain. As noted under the Clean water theme, human-made wetlands in both urban and rural areas ...
... is slow enough, toxic compounds break down or are removed by chemical and biological processes in the water column, and pathogens lose their viability or are consumed by other organisms in the aquatic food chain. As noted under the Clean water theme, human-made wetlands in both urban and rural areas ...
Constructed Wetlands and Wastewater Treatment
... – emergent plants that are tolerant of water saturated soils are used ...
... – emergent plants that are tolerant of water saturated soils are used ...
Chapter 14 - Water Pollution
... Cultural eutrophication is caused by an increase in nutrients, such as fertilizers, especially N and P. In natural systems, N & P are limiting factors – adding them causes an algal bloom. Eutrophication can cause a rapid growth of algae which eventually dies, causing the microbes to increase the BOD ...
... Cultural eutrophication is caused by an increase in nutrients, such as fertilizers, especially N and P. In natural systems, N & P are limiting factors – adding them causes an algal bloom. Eutrophication can cause a rapid growth of algae which eventually dies, causing the microbes to increase the BOD ...
Direct Potable Reuse - Soquel Creek Water District
... • By December 21, 2016, the SWB must adopt criteria for surface water augmentation if the expert panel finds that the proposed criteria would adequately protect public health. • By December 31, 2016, the SWB shall investigate and report to the Legislature on the feasibility of developing uniform wat ...
... • By December 21, 2016, the SWB must adopt criteria for surface water augmentation if the expert panel finds that the proposed criteria would adequately protect public health. • By December 31, 2016, the SWB shall investigate and report to the Legislature on the feasibility of developing uniform wat ...
Viruses at the nexus of water and human health Joanna L. Shisler
... of Microbiology and College of Medicine, University of Illinois at Urbana-Champaign, USA 3Safe Global Water Institute 2Department ...
... of Microbiology and College of Medicine, University of Illinois at Urbana-Champaign, USA 3Safe Global Water Institute 2Department ...
Water Harvesting
... We all love to see the rain come so that our lawns and flowers flourish but water from the sky can be a major problem. Many of us in the stormwater management business view the rain with a love-hate relationship. Rain is great for the growth of vegetation but rain water can collect pollutants as it ...
... We all love to see the rain come so that our lawns and flowers flourish but water from the sky can be a major problem. Many of us in the stormwater management business view the rain with a love-hate relationship. Rain is great for the growth of vegetation but rain water can collect pollutants as it ...
Cryptosporidium PowerPoint
... Cryptosporidium is highly resistant to klordesinfiktion, with enough high concentrations and contact time, disabled Cryptosporidium by chlorine dioxide and ozone treatment. The the required levels of chlorine normally preclude the use of chlorine disinfection as a reliable method to control Cryptosp ...
... Cryptosporidium is highly resistant to klordesinfiktion, with enough high concentrations and contact time, disabled Cryptosporidium by chlorine dioxide and ozone treatment. The the required levels of chlorine normally preclude the use of chlorine disinfection as a reliable method to control Cryptosp ...
Draft Session Report
... We have entered the 21st century, a time screaming for serious action toward purifying the earth’s water. The people of the world need to become conscious of the grave importance of protecting our water. One natural proposal to come out of this awakening would be to institute taxes on industries and ...
... We have entered the 21st century, a time screaming for serious action toward purifying the earth’s water. The people of the world need to become conscious of the grave importance of protecting our water. One natural proposal to come out of this awakening would be to institute taxes on industries and ...
Portable water purification
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Portable water purification devices – better described as point-of-use (POU) water treatment systems and field water disinfection techniques – are self-contained, hand-carried units used by recreational enthusiasts, military personnel, survivalists, and others for water purification when they need to obtain drinking water from untreated sources (e.g. rivers, lakes, groundwater etc.). These personal devices and methods attempt to render water potable (i.e. safe and palatable for drinking purposes - without disease-causing pathogens).Techniques include heat (including boiling), filtration, activated charcoal absorption, chemical disinfection (e.g chlorine, iodine, ozone, etc.), ultraviolet purification (including SODIS), distillation (including solar distillation), and flocculation. Often these are used in combination.Many commercial portable water purification systems or chemical additives are available for hiking, camping, and other travel in remote areas.