Emerging contaminants (ECs) are causing negative effects on the environment and even people, so their removal has become a priority worldwide. Adsorption associated technologies where this process occurs (filtration/biofiltration) have gained great interest, due to its low cost, easy operation, effectiveness mainly in (up 100%) of lipophilic ECs (log Kow > 4). Activated carbon continues be most efficient material (>850 mg/g). However, other conventional materials (activated carbon,...

Chile is an agricultural power, but also one of the most vulnerable countries to climate change and water shortage. About 50% irrigated agriculture land in central zone, thanks its agricultural-climatic characteristics that provide adequate supply (100–4000 m3/s). However, vulnerability scenario this zone high due seasonal availability resources. Therefore, opportunities use non-conventional alternative sources (e.g., wastewater) become appealing feasible option population animal density...

Abundant, easily accessible, and low-cost agro-industrial residues represent attractive alternatives for removing emerging contaminants from water. In this work, the aqueous adsorption of caffeine/triclosan onto rice husk (RH) was studied in batch continuous processes. For purpose, adsorbents with three particle size ranges (120–150, 300–600, 800–2000 µm) were prepared evaluated. The composition, structure, surface morphology, functionality, specific area RH biosorbents determined. This...

Nature-based solutions represent a decentralized wastewater treatment proposal, offering diverse mechanisms for effectively removing emerging contaminants, particularly acidic pharmaceuticals. This study evaluated the performance of acidic-drug (diclofenac, fenofibrate, ibuprofen, gemfibrozil, fenoprofen, naproxen, and indomethacin) removal from using surface-flow constructed wetland with an organic bed (Eichhornia crassipes (Mart.) Solms, 18 ind/m2), horizontal subsurface-flow wetland,...

Peanut shells’ adsorption performance in caffeine and triclosan removal was studied. shells were analyzed for their chemical composition, morphology, surface functional groups. Batch fixed-bed column experiments carried out with solutions containing 30 mg/L of triclosan. The parameters examined included peanut shell particle size (120–150, 300–600, 800–2000 µm), adsorbent dose (0.02–60 g/L), contact time (up to 180 min), bed height (4–8 cm), hydraulic loading rate (2.0 4.0 m3/m2-day). After...

The aim of this study was to establish sustainably feasible areas for the implementation anaerobic co-digestion plants agricultural wastes (cattle/swine slurries and cereal crop wastes). methodology based on use geographic information systems (GIS), analytic hierarchy process (AHP) map algebra generated from hedges related environmental, social economic constraints. GIS model obtained applied a region Chile (Bío Bío Region) as case showing energy potential (205 MW-h) (swine/cattle manures...

A Moving Bed Bioreactor (MBBR) was operated during 333 days. Two different effluents were fed in six phases. Phases I and II with effluent where Pinus radiata used as raw material, while phases III to VI Eucalyptus globulus material. The HRT reduced from 85 4 h, the BOD5:N:P ratio (100:5:1, 100:3:1 100:1:1) also simultaneously evaluated an operation strategy. When MBBR influent, performance presents a high BOD5 removal level (above 95%), although COD is below 60%. Most of recalcitrant...

The objective of this study was to evaluate the behavior Typha angustifolia L. in nitrogen retention a Free Water Surface Constructed Wetland (FWS) for swine wastewater treatment over three-year operating period. Results show that FWS is affected by concentration, seasonal variation and plant establishment system. Indeed, application Nitrogen Loading Rates (NLR) between 7.1-14.3 kg TN/ha·d removes 40% Total (TN), where maximum removal (20-40%) takes place spring-summer seasons. However,...

Differences in biodegradability can affect the treatment of slurry before its use spraying. The objective this study was to evaluate effect generation and physical–chemical characterization swine dairy cattle slurries on different biological technologies. This research involved monthly sampling (number/composition) for 1 year 24 farms (16%), (38%), mixed (46%). results obtained showed differences feeding (3 l water kg −1 food 5 swine) assimilation (0.6 milk produced 3 weight gain), which may...

Nitrogen and phosphorus distribution in a constructed wetland fed with treated swine slurry from an anaerobic lagoon were studied. The methodology considered daily meteorological monitoring site. During 2011 to 2012, water, soil plants (Schoenoplectus californicus (C.A. Méyer) Sójak, Typha angustifolia (L.)) seasonally sampled (spring fall) into the wetland. study period, results showed that rainfall was main factor of maintenance hydraulic conditions, while evapotranspiration driver...

Schoenoplectus californicus (C.A. Meyer), Soják is one of the plants most used to treat wastewater in a constructed wetland.Our objective study growth and nutrient uptake Cyperaceae wetland fed with swine slurry.The methodology evaluate was allometric, relative abundance biomass period 2009 -2010.The results show that had allometric between 31.2 98.4 21 108 individuals m -2 , during fall spring seasons, respectively.These are influenced by nitrogen content (between 0.05 2.0 kg N ha -1 d )...

This paper studies the effect of organic load rate (OLR) and nutrient ratio on operation stability moving bed bioreactor (MBBR) for kraft mill wastewater treatment, analyzing incidence polyhydroxyalkanoate (PHA) production. The MBBR operating strategy was to increase OLR from 0.25 ± 0.05 2.41 0.19 kg COD m−3 d−1 between phases I IV. BOD5:N:P (100:5:1 100:1:0.2) evaluated as an IV V. A stable found when increased during 225 days in five phases. maximum absolute fluorescence against proportion...