{"id":927,"date":"2013-06-09T13:56:36","date_gmt":"2013-06-09T18:56:36","guid":{"rendered":"http:\/\/madstone.net\/bugout\/?p=72"},"modified":"2013-06-09T13:56:36","modified_gmt":"2013-06-09T18:56:36","slug":"pasteurizing-water-if-boiling-is-impractical","status":"publish","type":"post","link":"https:\/\/madstone.net\/?p=927","title":{"rendered":"Pasteurizing water if boiling is impractical"},"content":{"rendered":"

Information on how to pasteurize water… related to the SODIS technique, but using a solar cooker.\u00a0http:\/\/solarcooking.org\/newsletters\/scrnov02.htm#water<\/p>\n

It turns out that water can be made much safer with temperatures below the boiling point, which is important if you don’t have much fuel for boiling.<\/p>\n

http:\/\/solarcooking.wikia.com\/wiki\/Water_pasteurization<\/a><\/p>\n

Millions of people become sick each year from drinking contaminated water. Children are especially susceptible. An estimated 1.5 billion cases of diarrhea occur each year, resulting in the death of nearly 2 million children. Worldwide, about 1.3 billion people do not have access to safe drinking water, including nearly half the population of sub-Saharan Africa. Yet, in many of the most severely affected regions, sunshine is an abundant source of energy that can not only cook food but can also heat water to temperatures that kill harmful microbes, making water safe to drink. This procedure is called solar\u00a0water pasteurization<\/b>.<\/p>\n

It has been known since the late 1880s, when Louis Pasteur conducted groundbreaking research on bacteria, that heat can kill pathogenic (disease-causing) microbes. Most people know contaminated water can be made safe by boiling. What is not well known is that contaminated water can be pasteurized at temperatures well below boiling, as can milk, which is commonly pasteurized at 71\u00b0C (160\u00b0F) for 15 seconds.<\/p>\n

The chart below indicates the temperatures at which the most common waterborne pathogens are rapidly killed, thus resulting in at least 90 percent of the microbes becoming inactivated in one minute at the given temperature. (The 90 percent reduction is an indicator frequently used to express the heat sensitivity of various microbes.) Thus, five minutes at this temperature would cause at least a 99.999 percent (5 log) reduction in viable microbes capable of causing disease.<\/p>\n\n\n\n\n\n\n\n
Microbe<\/b><\/td>\nKilled Rapidly At<\/b><\/td>\n<\/tr>\n
Worms, Protozoa cysts\u00a0(Giardia, Cryptosporidium, Entamoeba)<\/i><\/td>\n55\u00b0C (131\u00b0F)<\/td>\n<\/tr>\n
Bacteria\u00a0(V. cholerae, E. coli, Shigella, Salmonella typhi)<\/i>, Rotavirus<\/td>\n60\u00b0C (140\u00b0F)<\/td>\n<\/tr>\n
Hepatitis A<\/i>\u00a0virus<\/td>\n65\u00b0C (149\u00b0F)<\/td>\n<\/tr>\n
(Significant inactivation of these microbes actually starts at about 5\u00b0C (9\u00b0F) below these temperatures, although it may take a couple of minutes at the lower temperature to obtain 90 percent inactivation.)<\/i><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Information on how to pasteurize water… related to the SODIS technique, but using a solar cooker.\u00a0http:\/\/solarcooking.org\/newsletters\/scrnov02.htm#water It turns out that water can be made much safer with temperatures below the boiling point, which is important if you don’t have much fuel for boiling. http:\/\/solarcooking.wikia.com\/wiki\/Water_pasteurization Millions of people become sick each year from drinking contaminated water. … Continue reading “Pasteurizing water if boiling is impractical”<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[83],"tags":[],"class_list":["post-927","post","type-post","status-publish","format-standard","hentry","category-h2o"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/pgY3e-eX","jetpack-related-posts":[{"id":935,"url":"https:\/\/madstone.net\/?p=935","url_meta":{"origin":927,"position":0},"title":"Water storage for the suburbs","author":"Jorah","date":"December 28, 2013","format":false,"excerpt":"From:\u00a0http:\/\/arewecrazyorwhat.net\/water-storage-for-a-suburbanite\/ Water storage is one of the least talked about subjects in the preparedness community \u2013 sure it\u2019s mentioned from time to time (\u201cBe sure and have a water storage\u201d or \u201crotate your water storage\u201d) but as far as step by step instructions or detailed examples, it\u2019s not a subject\u2026","rel":"","context":"In "Water"","block_context":{"text":"Water","link":"https:\/\/madstone.net\/?cat=83"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":35,"url":"https:\/\/madstone.net\/?p=35","url_meta":{"origin":927,"position":1},"title":"Bible Argument Spurs Boiling-Oil Charge","author":"Jorah","date":"May 20, 2004","format":false,"excerpt":"Posted on Thu, May. 20, 2004 Associated Press EUGENE, Ore. - A woman is accused of pouring boiling oil on her boyfriend's face in an argument over a Bible verse. 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