| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4425016 | Environmental Pollution | 2012 | 9 Pages |
The high wastewater volumes produced during citrus production at pre- and post-harvest level presents serious pesticide point-source pollution for groundwater bodies. Biobeds are used for preventing such point-source pollution occurring at farm level. We explored the potential of biobeds for the depuration of wastewaters produced through the citrus production chain following a lab-to-field experimentation. The dissipation of pesticides used pre- or post-harvest was studied in compost-based biomixtures, soil, and a straw-soil mixture. A biomixture of composted grape seeds and skins (GSS-1) showed the highest dissipation capacity. In subsequent column studies, GSS-1 restricted pesticides leaching even at the highest water load (462 L m−3). Ortho-phenylphenol was the most mobile compound. Studies in an on-farm biobed filled with GSS-1 showed that pesticides were fully retained and partially or fully dissipated. Overall biobeds could be a valuable solution for the depuration of wastewaters produced at pre- and post-harvest level by citrus fruit industries.
► High pesticide amounts are used for pre- and post-harvest treatments of citrus fruits. ► Pesticide-containing wastewaters from citrus production activities require depuration. ► Biobeds is a possible means for the depuration of wastewaters from the citrus industry. ► Biomixture and water management of biobeds were optimized via lab and column studies. ► On-farm offset biobed showed a high dissipation capacity against citrus pesticides.
