1) Waste treatment technology
Found on
https://www.crosswordclues.com/clue/biofilter
Biofiltration is a pollution control technique using living material to capture and biologically degrade process pollutants. Common uses include processing waste water, capturing harmful chemicals or silt from surface runoff, and microbiotic oxidation of contaminants in air. Examples of biofiltration include; ==Control of air pollution== When appl...
Found on
http://en.wikipedia.org/wiki/Biofilter
removes odours from gaseous emissions by passing the gas through layers of peat, heather or similar substrate on which microorganisms grow
Found on
http://www.oasisenviro.co.uk/Glossary%20A%20to%20B.htm
No exact match found.
