Biodegradability of Surfactants (Hardback)
  • Biodegradability of Surfactants (Hardback)
zoom

Biodegradability of Surfactants (Hardback)

(editor), (editor)
£199.99
Hardback 257 Pages / Published: 31/12/1994
  • We can order this

Usually dispatched within 3 weeks

  • This item has been added to your basket
The awareness and development of 'biodegradable' surfactants pre-dates current pressures by the environmental movement by nearly three decades, wherein a responsible industry mutually agreed to replace 'hard', non-biodegradable com ponents of household detergents by 'soft', biodegradable alternatives, without course to legislation. The only requirement at that time was for surfactants used in detergents to exhibit a 'primary biodegradability' in excess of 80%; this referring to the disap pearance or removal from solution of the intact surface active material as de tected by specified analytical techniques. This proved useful, as observed environmental impacts of surfactants, e.g. visible foam on rivers, are associated with the intact molecule. Test methods for 'primary biodegradability' were eventually enshrined in EU legislation for nonionic surfactants (Directive 821242/EEC, amended 73/404IEEC) and for anionic surfactants (Directive 8212431EEC, amended 73/405IEEC). No approved test methods and resultant legislation have been developed for cationic and amphoteric surfactants to date. The environmental classification of chemical substances, which of course includes surfactants, and associated risk assessment utilises a second criterion 'ready biodegradability'. This may be assessed by a number of methods which monitor oxygen uptake (BOD), carbon dioxide production or removal of dis solved organic carbon (DOC). Some surfactants which comply with the above Detergents Directive are borderline when it comes to 'ready biodegradability'.

Publisher: Chapman and Hall
ISBN: 9780751402063
Number of pages: 257
Weight: 1250 g
Dimensions: 235 x 155 x 19 mm
Edition: 1995 ed.

You may also be interested in...

Natural Soap Book
Added to basket
From Vines to Wines, 5th Edition
Added to basket
Bad Whisky
Added to basket
£9.99
Paperback
The Science and Commerce of Whisky
Added to basket
The Art of Fermentation
Added to basket
Joy of Home Wine Making
Added to basket
Polymer Physics
Added to basket
Textile Technology and Design
Added to basket
Statistical Methods for Food Science
Added to basket
Salt, Sugar, Fat
Added to basket
£12.99
Paperback
A Dictionary of Chemical Engineering
Added to basket
The Science of Cheese
Added to basket
Danger Cosmetics to Go
Added to basket
The Undiscovered Self
Added to basket
£13.99
Paperback

Please sign in to write a review

Your review has been submitted successfully.