Скачать с ютуб Backcountry Water Treatment, Part 6: Ultraviolet Disinfection в хорошем качестве

Backcountry Water Treatment, Part 6: Ultraviolet Disinfection

This video is Part 6 in a series on Backcountry Water Treatment methods. It is a discussion of Ultraviolet light’s germicidal capacity and the disinfection capabilities of available UV products, including the Steripen. Topics include the relative effectiveness against different pathogen types (cyst, bacteria, viruses), the effect of water condition on performance, safety hazards involved with UV devices, and issues regarding proper use for making water as safe as possible. View the full Backcountry Water Treatment series here:    • Backcountry Water Treatment   Index 00:11 Introduction 00:51 Ultraviolet Light 01:58 UV Disinfection Overview 02:43 Turbidity 04:11 Electronic Device Issues 05:05 Battery Life 06:31 Mercury Arc Lamps 08:39 Pathogen Reduction 10:57 Cryptosporidium 11:24 Lamp Brightness 12:26 Water Temperature 12:52 Residual Protection 14:00 Dark Repair 14:56 Excystation vs Infectivity 15:48 Steripen Performance 16:29 Effect of Turbidity 18:02 EPA Standard and Proxy Organisms 20:53 Adenovirus 23:34 Repeated UV Doses 24:27 Low Battery Voltage 26:01 Published Steripen Study 27:53 Intensity vs Time 29:25 Bottle Type and Agitation 32:23 Proper Agitation 34:50 EPA Standard is a Minimum 35:52 Home Experiment 37:36 UV Light Exposure 40:23 UV LED Bottles 41:52 Stagnation Tests 43:43 Summary