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Transcribed

Biosand Filter

Biosand History: Developed by Dr. David Manz in 1990 and in production ever since Every day people risk their lives and health by drinking contaminated water. Biosand filter is a technological adaptation of the slow sand filtration process and makes a difference by providing safe drinking water, right where and when it's needed Maintenance: Skimming of the fertile top layer of sand keeps the flow smooth Rs.2 90% 40% Water is the cost of production of the cheapest filter is the average rate of E.coli/faecal removal amount upto which incidence of diarrhoea can be reduced Plastic Bottle Reused plastic bottle with a part of its top cut of Biosand filter water removes Contaminated water Water high in microbial content Straw Schmutzdecke • A biofilm in the top of the sand Organic and inorganic Fecal coliform Protozoa and Zinc, copper, Iron and Arsenic creates an environment where helminths cadmium & manganese most pathogens can not survive toxicants lead 100% Fine sand • As micro-organisms such as bacteria, viruses and parasites travel through the sand, they collide with and adsorb onto Solar water disinfection is a method SODIS of disinfecting water (portable) using only sunlight and PET bottles sand particles Expose water to direct sunlight for Gravel • Prevents clogging of the straw with sand and keeps filter bottom free for water to flow at least six hours or two days under cloudy conditions Saakshita Prabhakar Biosand History: Developed by Dr. David Manz in 1990 and in production ever since Every day people risk their lives and health by drinking contaminated water. Biosand filter is a technological adaptation of the slow sand filtration process and makes a difference by providing safe drinking water, right where and when it's needed Maintenance: Skimming of the fertile top layer of sand keeps the flow smooth Rs.2 90% 40% Water is the cost of production of the cheapest filter is the average rate of E.coli/faecal removal amount upto which incidence of diarrhoea can be reduced Plastic Bottle Reused plastic bottle with a part of its top cut of Biosand filter water removes Contaminated water Water high in microbial content Straw Schmutzdecke • A biofilm in the top of the sand Organic and inorganic Fecal coliform Protozoa and Zinc, copper, Iron and Arsenic creates an environment where helminths cadmium & manganese most pathogens can not survive toxicants lead 100% Fine sand • As micro-organisms such as bacteria, viruses and parasites travel through the sand, they collide with and adsorb onto Solar water disinfection is a method SODIS of disinfecting water (portable) using only sunlight and PET bottles sand particles Expose water to direct sunlight for Gravel • Prevents clogging of the straw with sand and keeps filter bottom free for water to flow at least six hours or two days under cloudy conditions Saakshita Prabhakar Biosand History: Developed by Dr. David Manz in 1990 and in production ever since Every day people risk their lives and health by drinking contaminated water. Biosand filter is a technological adaptation of the slow sand filtration process and makes a difference by providing safe drinking water, right where and when it's needed Maintenance: Skimming of the fertile top layer of sand keeps the flow smooth Rs.2 90% 40% Water is the cost of production of the cheapest filter is the average rate of E.coli/faecal removal amount upto which incidence of diarrhoea can be reduced Plastic Bottle Reused plastic bottle with a part of its top cut of Biosand filter water removes Contaminated water Water high in microbial content Straw Schmutzdecke • A biofilm in the top of the sand Organic and inorganic Fecal coliform Protozoa and Zinc, copper, Iron and Arsenic creates an environment where helminths cadmium & manganese most pathogens can not survive toxicants lead 100% Fine sand • As micro-organisms such as bacteria, viruses and parasites travel through the sand, they collide with and adsorb onto Solar water disinfection is a method SODIS of disinfecting water (portable) using only sunlight and PET bottles sand particles Expose water to direct sunlight for Gravel • Prevents clogging of the straw with sand and keeps filter bottom free for water to flow at least six hours or two days under cloudy conditions Saakshita Prabhakar Biosand History: Developed by Dr. David Manz in 1990 and in production ever since Every day people risk their lives and health by drinking contaminated water. Biosand filter is a technological adaptation of the slow sand filtration process and makes a difference by providing safe drinking water, right where and when it's needed Maintenance: Skimming of the fertile top layer of sand keeps the flow smooth Rs.2 90% 40% Water is the cost of production of the cheapest filter is the average rate of E.coli/faecal removal amount upto which incidence of diarrhoea can be reduced Plastic Bottle Reused plastic bottle with a part of its top cut of Biosand filter water removes Contaminated water Water high in microbial content Straw Schmutzdecke • A biofilm in the top of the sand Organic and inorganic Fecal coliform Protozoa and Zinc, copper, Iron and Arsenic creates an environment where helminths cadmium & manganese most pathogens can not survive toxicants lead 100% Fine sand • As micro-organisms such as bacteria, viruses and parasites travel through the sand, they collide with and adsorb onto Solar water disinfection is a method SODIS of disinfecting water (portable) using only sunlight and PET bottles sand particles Expose water to direct sunlight for Gravel • Prevents clogging of the straw with sand and keeps filter bottom free for water to flow at least six hours or two days under cloudy conditions Saakshita Prabhakar Biosand History: Developed by Dr. David Manz in 1990 and in production ever since Every day people risk their lives and health by drinking contaminated water. Biosand filter is a technological adaptation of the slow sand filtration process and makes a difference by providing safe drinking water, right where and when it's needed Maintenance: Skimming of the fertile top layer of sand keeps the flow smooth Rs.2 90% 40% Water is the cost of production of the cheapest filter is the average rate of E.coli/faecal removal amount upto which incidence of diarrhoea can be reduced Plastic Bottle Reused plastic bottle with a part of its top cut of Biosand filter water removes Contaminated water Water high in microbial content Straw Schmutzdecke • A biofilm in the top of the sand Organic and inorganic Fecal coliform Protozoa and Zinc, copper, Iron and Arsenic creates an environment where helminths cadmium & manganese most pathogens can not survive toxicants lead 100% Fine sand • As micro-organisms such as bacteria, viruses and parasites travel through the sand, they collide with and adsorb onto Solar water disinfection is a method SODIS of disinfecting water (portable) using only sunlight and PET bottles sand particles Expose water to direct sunlight for Gravel • Prevents clogging of the straw with sand and keeps filter bottom free for water to flow at least six hours or two days under cloudy conditions Saakshita Prabhakar Biosand History: Developed by Dr. David Manz in 1990 and in production ever since Every day people risk their lives and health by drinking contaminated water. Biosand filter is a technological adaptation of the slow sand filtration process and makes a difference by providing safe drinking water, right where and when it's needed Maintenance: Skimming of the fertile top layer of sand keeps the flow smooth Rs.2 90% 40% Water is the cost of production of the cheapest filter is the average rate of E.coli/faecal removal amount upto which incidence of diarrhoea can be reduced Plastic Bottle Reused plastic bottle with a part of its top cut of Biosand filter water removes Contaminated water Water high in microbial content Straw Schmutzdecke • A biofilm in the top of the sand Organic and inorganic Fecal coliform Protozoa and Zinc, copper, Iron and Arsenic creates an environment where helminths cadmium & manganese most pathogens can not survive toxicants lead 100% Fine sand • As micro-organisms such as bacteria, viruses and parasites travel through the sand, they collide with and adsorb onto Solar water disinfection is a method SODIS of disinfecting water (portable) using only sunlight and PET bottles sand particles Expose water to direct sunlight for Gravel • Prevents clogging of the straw with sand and keeps filter bottom free for water to flow at least six hours or two days under cloudy conditions Saakshita Prabhakar Biosand History: Developed by Dr. David Manz in 1990 and in production ever since Every day people risk their lives and health by drinking contaminated water. Biosand filter is a technological adaptation of the slow sand filtration process and makes a difference by providing safe drinking water, right where and when it's needed Maintenance: Skimming of the fertile top layer of sand keeps the flow smooth Rs.2 90% 40% Water is the cost of production of the cheapest filter is the average rate of E.coli/faecal removal amount upto which incidence of diarrhoea can be reduced Plastic Bottle Reused plastic bottle with a part of its top cut of Biosand filter water removes Contaminated water Water high in microbial content Straw Schmutzdecke • A biofilm in the top of the sand Organic and inorganic Fecal coliform Protozoa and Zinc, copper, Iron and Arsenic creates an environment where helminths cadmium & manganese most pathogens can not survive toxicants lead 100% Fine sand • As micro-organisms such as bacteria, viruses and parasites travel through the sand, they collide with and adsorb onto Solar water disinfection is a method SODIS of disinfecting water (portable) using only sunlight and PET bottles sand particles Expose water to direct sunlight for Gravel • Prevents clogging of the straw with sand and keeps filter bottom free for water to flow at least six hours or two days under cloudy conditions Saakshita Prabhakar

Biosand Filter

shared by Saakshita on Sep 22
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A simple method of purifying water in areas where filters are a remote possibility. Easy to make and costs bare minimum. Using natures way to get portable water.

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