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2. Water purification - Wikipedia

   en.wikipedia.org/wiki/Water_purification

   Many household water filters and fish tanks use activated carbon filters to purify water. Household filters for drinking water sometimes contain silver as metallic silver nanoparticle . If water is held in the carbon block for longer periods, microorganisms can grow inside which results in fouling and contamination.

3. Water filter - Wikipedia

   en.wikipedia.org/wiki/Water_filter

   Water filters produced in Toledo, Ohio in 1895 out of terracotta A large-scale flocculation water filter. A water filter removes impurities by lowering contamination of water using a fine physical barrier, a chemical process, or a biological process. Filters cleanse water to different extents, for purposes such as: providing agricultural ...

4. Portable water purification - Wikipedia

   en.wikipedia.org/wiki/Portable_water_purification

   The Portable Aqua Unit for Lifesaving (short PAUL) is a portable ultrafiltration-based membrane water filter for humanitarian aid. It allows the decentralized supply of clean water in emergency and disaster situations for about 400 persons per unit per day. The filter is designed to function with neither chemicals nor energy nor trained personnel.

5. Depth filter - Wikipedia

   en.wikipedia.org/wiki/Depth_filter

   A single piece of the filter material wound around a perforated cylinder, made of metal or stiff plastic, where the fluid or gas with solute flows inside the cylinder. Once the filter medium has reached its maximum solute load the cartridge is discarded. Backwashing can make the filter complete more cleaning cycles Home water and pool filters

6. Safe household water storage - Wikipedia

   en.wikipedia.org/wiki/Safe_household_water_storage

   Safe household water storage is a critical component of a Household Water Treatment and Safe Storage (HWTS) system being promoted by the World Health Organization (WHO) worldwide in areas that do not have piped drinking water. In these areas, it is not uncommon for drinking water to be stored in a pot, jar, crock or other container in the home.

7. Membrane technology - Wikipedia

   en.wikipedia.org/wiki/Membrane_technology

   In the simplest case, filtration is achieved when the pores of the membrane are smaller than the diameter of the undesired substance, such as a harmful microorganism. Membrane technology is commonly used in industries such as water treatment, chemical and metal processing, pharmaceuticals, biotechnology, the food industry, as well as the ...