Recycling
As a water conservation measure, many water purification plants recycle filter backwash water and other product streams from sludge treatment processes back to the beginning of the plant. On June 8, 2001, the USEPA released a final regulation governing acceptable practices for recycling backwash water. The purpose of the regulation was to improve the control of microbial contaminants such as Cryptosporidium by reducing the potential for recycled product streams to upset the removal efficiency of the main treatment processes. The regulation requires that spent filter backwash water be recycled to the front of the treatment plant so that all available particle removal treatment processes can be employed to remove the microbial and particulate material from the backwash water.
Read more about this topic: Backwashing (water Treatment)
Famous quotes containing the word recycling:
“Both the Moral Majority, who are recycling medieval language to explain AIDS, and those ultra-leftists who attribute AIDS to some sort of conspiracy, have a clearly political analysis of the epidemic. But even if one attributes its cause to a microorganism rather than the wrath of God, or the workings of the CIA, it is clear that the way in which AIDS has been perceived, conceptualized, imagined, researched and financed makes this the most political of diseases.”
—Dennis Altman (b. 1943)