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The first processed water was distributed to Warsaw citizens on July 3, 1886, from filters consisting of a group of slow sand filters, clean water tank, pump depot and a water tower. The design was by William Lindley, but was supervised and modernised by his son, William Heerlein Lindley .
A used Brita ("Maxtra" type) water purification filter cross-section with activated charcoal particles (black) and ion-exchange resin beads (white). Brita produces water jugs (BPA-free, made of styrene methyl methacrylate copolymer), kettles and tap attachments with integrated disposable filters. The filters can be recycled. [3]
This page was last edited on 31 October 2017, at 11:40 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike License 4.0; additional terms may apply.
The first FWPCA was enacted in 1948, but took on its modern form when completely rewritten in 1972 in an act entitled the Federal Water Pollution Control Act Amendments of 1972. [4] [1] Major changes have subsequently been introduced via amendatory legislation including the Clean Water Act of 1977 [5] and the Water Quality Act (WQA) of 1987. [6]
Hippocrates believed that water had to be clean and pure. Rainwater was the best water, but had to be boiled and strained before drinking to get rid of the "bad smell" and to avoid hoarseness of the voice. [3] [4] He designed a crude water filter to “purify” the water he used for his patients. Later known as the “Hippocratic sleeve ...
A biosand filter (BSF) is a point-of-use water treatment system adapted from traditional slow sand filters. 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 .
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