Emerging Pesticides; What Next? Stage 2: Trials of Emerging Technologies
Metaldehyde and emerging pesticides present a major problem to the water industry. In 2009, metaldehyde concentrations up to 1µg/L in raw waters resulted in 73 WTWs failing the drinking water pesticide standard. Catchment management and exisiting treatment have been unable to control metaldehyde concentrations completely, and metaldehyde accounted for the majority pf pesticide failures in 2012.
This project aimed to identify cost-effective metaldehyde treament solutions: in Stage 1, partial regeneration of granular activated carbon (GAC) and 25 emerging treatment technologies were reviewed in desk studies; in Stage 2, partial regeneration of GAC and the three most promising treatment technologies - LED-UV photocatalytic oxidation, ultrasonic-enhanced ozonation, and high-rate polymeric carbon adsorption - were evaluated in small-scale trials.
Whilst each approach approach showed some capacity for removal of metaldehyde from water, the technologies were unsuitable for larger scale implementation in the short-to-medium term because of costs, performance or their current state of development.
|UKWIR Reference :- 14/DW/14/8||Published Date :- 06/02/2014|
|Retail Price (£) :- 100||ISBN :- 1 84057 709 6|
Supporting Material and Reports
| Emerging Pesticides; What Next? Stage 2: Trials of Emerging Technologies CD|