It was successfully implemented in bangladesh, ecuador and mali in 2014. The biosand filter bsf is a simple household water treatment device, which is an innovation on traditional slow sand filters specifically designed for intermittent use. Bsf performance is comparable to other recommended household water treatment interventions. The device was made using locally available materials plastic bucket, sand and gravel. Pdf biosand filter construction guide affordable point. Page 1 user manual of the biosand filter daily usage never pour chlorinated water into the bio sand filter. Biosand filter performance after periodic abandonment in. Dr manz has trained many organizations on the design, construction, installation, operation and maintenance of the biosand filter. Highly detailed manual for designing and building biosand filters, that makes dirty water safe to drink. Slow sand filtration cdc pdf pdf 2 pages a slow sand filter is a sand filter adapted for household use.
Adequate training during installation and sufficient followup is perhaps a weak link in any biosand filter project, as householders tend to forget or ignore advice given regarding maintenance, contributing to. The content on this page has been adapted from publications of the centre for affordable water and sanitation technology cawst. Biosand filter an information resource website run by. Biosand filter manual, design, construction, installation, operation and maintenance. There is an adaptation of the biosand filter using rusty nails, called the kanchan filter, which can remove arsenic from water. The concrete biosand filter is an innovative version of the slow sand filter specifically designed for household use. The biosand filter bsf is an effective and sustainable householdlevel safe drinking water solution. Overall study results revealed a greater portion of turbidity. They are focused on empowering communities to meet their own needs by using a partnershipbased. Biosand filter construction manual wash education and training. A biosand filter treats 8 liters or more of water per hour. Its very important to provide as much attention as. How the biosand water filter works samaritans purse. All users, including children, need to be taught how and why the filter works and about its correct operation and maintenance.
The biological layer formed in the top few centimeters of the sand in slow sand filters and biosand filters. Uptodate description and history of the biosand water filter. August 2012 construction manual loughborough university. It also describes the steps to construct, install and monitor version 10 biosand filters. The purpose of these sketches is to aid in the visualization of the construction and. This study investigated a locally assembled biosand filter bsf water treatment device for low cost household level drinking water supply in hazardprone hardtoreach coastal areas of bangladesh to promote health. Refer to cawsts biosand filter manual for detailed instructions on how to select and prepare the filtration sand. The filter design is inspired by the opensource biosand filtration technology but uses a lightweight plastic housing instead of concrete. Biosand filter manual design, construction, installation, operation and maintenance.
Building a biosand filter for purifying water is simple. This document will help you understand the basics of a biosand filter bsf. New and rehabilitated water points such as boreholes, spring protections, shallow wells and traditional water points the construction of. As of august 2011, aci has implemented more than 1,800 biosand filters in kenya. Biosand filter manual 5 jul 07 the biosand filter continued the biosand filter is a simple concrete box with six different distinct regions. This work is licensed under a creative commons attributionsharealike 3. This study evaluated the effects of maintenance on the filters flow rate and performance. Some of the molds were made using zero electricity and only hand tools. Biosand filter construction manual without appendices section, august 2012.
Biosand filter for technicians participant manual iv drawings of the biosand filter the biosand filter is a large box. They can live in water, soil, in animals and on plants. Bushproof provides trainings to make biosand filters, which are a slow sand filtration product for household use. Cawst publishes their biosand filter construction manual in pdf format. This illustrated manual describes what a biosand filter is and how it works. Detailed information pertaining to biosand filter operation and maintenance plus other water, sanitation and hygiene wash matters are.
A biosand filter bsf is an adaptation of the traditional slow sand filter, which has been used for community drinking water treatment for 200 years. The biosand filter technology builds upon the centuries old slow sand filtration process. Knowledge about filter construction, user education and project management are crucial to the success of a bsf project. Their design is a bit over the top for our use though, using concrete and sheet metal to construct the thing.
Bsf is a pointofuse water treatment system adapted from traditional slow sand filters. The following tools and materials are needed for building the metal diffuser box. Download pdf desea peru pvc filter manual this manual has been prepared to outline the construction and. Many types of biosand filters are out there, but the standard one that is currently in use all of africa and other parts of the world is made out of concrete. Bsfs have been shown to remove heavy metals, turbidity, bacteria, viruses and protozoa. As with the other types of water projects we support, we are meeting the clean drinking water.
John 2102012 this manual details the design principles and communicates the assembly and installation procedures for a 10 inch pvc pipe biosand filter. Biosand technology is open source and royalty free, allowing us to build as many as our budget will allow. Biosand filter components, construction, and dimensions. Household water treatment and safe storage implementation case study.
The bsf requires maintenance to remove trapped sediments. The manual illustrates the design, construction, installation, operation and maintenance of the biosand filter. Bio sand water filter construction diy stepbystep youtube. As water flows through the filter, physical straining removes pathogens, iron, turbidity and manganese. Cawst has prepared a summary of laboratory and field studies for the biosand filter. Manz, who had already designed and developed a plastic biosand filter, granted cascade engineering the license to manufacture and distribute the plastic hydraid biosand filter. Biosand filter project implementation biosand filter construction manual v glossary adsorption when a contaminant attaches or sticks to the surface of a solid, such as a grain of sand.
Biosand filtration is an appropriate and lowcost method for household water treatment and is proven to reduce the incidence of diarrhoea. Its structure is generally made of concrete or plastic and. Improving household drinking water quality use of biosand filters in cambodia the bsf is a robust water treatment technology for use in rural cambodian households, capable of effective removal of bacteria, and significant reduction of diarrheal disease. Improving household drinking water quality use of biosand. Bacteria singlecelled microorganisms, typically a few micrometres in length. In total, wood molds were made in these countries, producing over 250 biosand filters. In this manual, the biosand filter is drawn in many ways.
Biosand filter construction manual 2012 free ebook download as pdf file. A sustainable option for household treatment of drinking water 299 particulate material in the top surface of the filtering media will. Check out the technical info, training, forum and downloads proving the intrinsic effectiveness of the filter. Check out the technical pages, photo construction guides, project evaluations, scientific reports proving the intrinsic effectiveness of the filter. Biosand filter information resource website run by bushproof. If it is sitting on the ground, it will come up to your waist, or higher. Pdf biosand filter construction guide affordable point of use. These filters are built locally using available materials and labor. Building a biosand filter for purifying water afropedea. Biosand filters aqua clara international introduction aqua clara international aci is a nonprofit ngo headquartered in the usa and operating in kenya.
Biosand filter submitted by omills on mon, 20111010 9. You can also download our wood mold construction manual and appendix. This is the biosand filter construction manual without the four appendices. The biosand filter bsf is a household scaled, intermittently operated, slow sand filter.
The biosand water filter is an adaptation of slowsand filtration that is designed for use by families at the household level. The wood mold construction manual and appendix are available for download on the ohorizons website. Biosand filter performance after periodic abandonment in honduran schools cordelia stewart1, barbara stewart2, catherine hopper3. Concrete biosand water filter construction manual book 4. Like other filters, the biosand filter cannot remove dissolved contaminants or chemicals, such as salt, arsenic or fluoride. This awardwinning water filtration technology was developed by dr. The centre for affordable water and sanitation technology cawst developed a great biosand filter construction guide that has lots of useful information. The materials to construct the biosand filter are all available locally and are very affordable. Biosand filter manual 6 3 biosand filter operation the following sections describe how to properly use the biosand filter to ensure the highest level of treatment efficiency. The biological layer formed at the sandwater interface of slow sand filters. A bsf consists of a concrete or plastic container filled with specially selected and prepared sand and gravel. This manual is for biosand filter technicans who are interested in learning how to construct, install and monitor biosand filter projects.
Do households understand how to carry out maintenance. Welcome to the new manz water information web site biosand water filter. Biosand filter construction guide affordable point of use drinking water treatment method. A biosand filter is a simple type of water purification system that uses sand, gravel, gravity and some simple engineering to purify water contaminated with biologics and some chemicals. Biosand filter effectiveness is greatly influenced by the presence and quality of filter components, the quality of filter construction, and the dimensions of the filter. This manual has less information about how the biosand filter works, compared to the biosand filter construction manual. Biosand filter water dispenser pdf manual download. A pilot test project in san juan del sur, nicaragua was conducted to verify viability.
The biosand filter construction manual describes what a biosand filter is and how it works. He also cofounded cawst in 2001 to provide the professional services needed for the humanitarian distribution of the filter in developing countries. Biosand filters remove pathogens and suspended solids from water using biological and physical processes that take place in a sand column covered with a biofilm. This manual has been prepared to outline the construction and installation procedures of a pvc biosand filter bsf designed by desea peru for use in andean communities. It is refilled manually and can supply the drinking water needs of a household. It is colonized by microorganisms including bacteria, protozoa, algae, and diatoms.
So my challenge was to build my own biosand filter for as cheap as. Manzwaterinfo biosand water filter, biosand water filter. Aci developed a biosand filter using a plastic container for the filter body in 2007 and have received training and followup support from cawst. It contains all details required for construction of concrete biosand filters. Oxygen in the air diffuses through the supernatant to the biological layer.
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