Publications by authors named "N Valiente"
Article Synopsis
- The study investigates the long-term air quality impact of olive mill wastewater (OMW) sludge, focusing on pollutants like PM, VOCs, and trace elements, along with the associated microbial communities.
- High mercury levels in the sludge and air point to a significant ecological risk (ERI over 720), raising concerns about environmental threats.
- Findings also reveal that meteorological factors and Sahara dust impacts the loading of bioaerosols and seasonal bacterial diversity, suggesting a need for better management strategies for OMW sludge.
This work presents a year-long integral study of air quality parameters in Ciudad Real, a small city in the center of Spain, and its influence on the nearby national park, Las Tablas de Daimiel. The study covers meteorological parameters and criteria pollutants such as O, NO, NO, SO, and PM. Additionally, for each month, a 1-week campaign was performed sampling air in sorbent tubes with 8-h time resolution to analyze anthropogenic volatile organic compounds and the effects of seasons, daytime, and working-weekend days.
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- Restoration of mining sites in arid zones can be enhanced by using organic amendments, which help establish technosols and support ecosystem services.
- A 30-month study found that compost gardening and stabilized sewage sludge improved soil health, increased organic carbon and nitrogen, and led to significant changes in bacterial community structure.
- Notable differences in soil properties and bacterial diversity were identified, indicating that specific organic amendments play crucial roles in enhancing soil health and preserving biodiversity.
New industries are proliferating in the recovery of agri-food wastes, such as those involved in the revaluation of alperujo, generated in the production of olive oil. Despite the potential environmental benefits, their activity is not exempt from new forms of emissions, aggravated by the massification of waste treatments. This work reports a six-month field campaign carried out in an alperujo desiccation plant which can serve as a proxy for these emerging industries in the Mediterranean countries.
View Article and Find Full Text PDFTablas de Daimiel National Park (TDNP) is one of the most important wetlands in the Iberian Peninsula. Due to its location near various cities and new industries focused on agricultural waste revalorization, we investigated concurrently the concentrations of particulate matter 2.5 (PM) mass, trace element composition, and associated microbial communities (bacteria and fungi) during a year-long study.
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