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Greywater. Left: greywater sample from an office building. Right: Same greywater after treatment in membrane bioreactor. Greywater (or grey water, sullage, also spelled gray water in the United States) refers to domestic wastewater generated in households or office buildings from streams without fecal contamination, i.e., all streams except for ...
Save money and promote sustainability by putting gray water to use for you. You're using (and paying for) an average of 300 gallons of water every day. Save money and promote sustainability by ...
The EPA storm water management model (SWMM) is a dynamic rainfall-runoff-routing simulation model used for single event or long-term (continuous) simulation of runoff quantity and quality from primarily urban areas. The runoff component of SWMM operates on a collection of subcatchment areas that receive precipitation and generate runoff and ...
Brown. Brown colors are dark or muted shades of reds, oranges, and yellows on the RGB and CMYK color schemes. In practice, browns are created by mixing two complementary colors from the RYB color scheme (combining all three primary colors). In theory, such combinations should produce black, but produce brown because most commercially available ...
A built-in desalination system uses some of the electricity produced to create clean drinking water, and the rest of the electricity is fed back to shore and added to the grid. The utility-scale ...
Sustainable drainage systems (also known as SuDS, [ 1] SUDS, [ 2][ 3] or sustainable urban drainage systems[ 4]) are a collection of water management practices that aim to align modern drainage systems with natural water processes and are part of a larger green infrastructure strategy. [ 5] SuDS efforts make urban drainage systems more ...
Blackwater fever is a complication of malaria infection in which red blood cells burst in the bloodstream ( hemolysis ), releasing hemoglobin directly into the blood vessels and into the urine, frequently leading to kidney failure. The disease was first linked to malaria by the Sierra Leone Creole physician John Farrell Easmon in his 1884 ...
A long-running religious freedom case has come full circle, with a court ruling this week that a deeply conservative Amish community in Minnesota cannot be threatened with the loss of homes if its ...