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961.
Martins DF de Fátima Vitória de Moura M Bezerra Loiola MI Di Souza L Barbosa E Silva KM Francismar de Medeiros J 《Journal of environmental monitoring : JEM》2011,13(2):274-279
Aquatic macrophytes are a very important subject of study due to their capacity to restore polluted aquatic environments as they need high nutrient concentrations to develop. The present study aims to determine their temporal and physiological influence on the amount of total nitrogen, gross protein, P, Cu, Ni, Co, Cd, Pb and Cr absorbed by Eichhornia crassipes (water hyacinth) in the River Apodi/Mossoró, RN, Brazil, identifying viable possibilities for the use of cultivated biomass. Results obtained from the parameters analyzed show that these substances are impacted by the temporality and physiology of Eichhornia crassipes. Leaves showed higher crude protein and macronutrients, while the content of micronutrients and toxic elements was higher in roots. It could, therefore, be utilized to improve water quality in the River Apodi/Mossoró. 相似文献
962.
Moura DR Silveira ML O'Connor GA Wise WR 《Journal of environmental monitoring : JEM》2011,13(9):2457-2462
Rapid infiltration basins (RIBs) are effective tools for wastewater treatment and groundwater recharge, but continuous application of wastewater can increase soil P concentrations and subsequently impact groundwater quality. The objectives of this study were to (1) investigate the effects of reclaimed water infiltration rate and "age" of RIBs on soil P concentrations at various depths, and (2) estimate the degree (percentage) of sorption equilibrium reached between effluent P and soil attained during reclaimed water application to different RIBs. The study was conducted in four contrasting cells of a RIB system with up to a 25 year history of secondary wastewater application. Soil samples were collected from 0 to 300 cm depth at 30 cm intervals and analyzed for water extractable phosphorus (WEP) and oxalate extractable P, Al, and Fe concentrations. Water extractable P and P saturation ratio (PSR) values were generally greater in the cells receiving reclaimed water compared to control soils, suggesting that reclaimed water P application can increase soil P concentrations and the risk of P movement to greater depths. Differences between treatment and control samples were more evident in cells with longer histories of reclaimed water application due to greater P loading. Data also indicated considerable spatial variability in WEP concentrations and PSR values, especially within cells from RIBs characterized by fast infiltration rates. This occurs because wastewater-P flows through surface soils much faster than the minimum time required for sorption equilibrium to occur. Studies should be conducted to investigate soil P saturation at deeper depths to assess possible groundwater contamination. 相似文献
963.
The influence of silicon on responses to copper excess was studied in plants of Erica andevalensis. Plantlets were grown in nutrient solutions containing two Cu (1 and 500 μM) and three Si concentrations (0, 0.5 and 1 mM). Plant growth, water content, and mineral nutrient concentration were determined. Plants grown with 500 μM Cu showed differences in growth and shoot water content depending on Si supply. The addition of 1 mM Si in high-Cu nutrient solutions significantly improved plant growth and reduced water loss preventing plant death related to Cu-excess. Silicon supply reduced significantly leaf Cu concentration (up to 32%) and increased Cu concentration in roots. Phytoliths isolated from leaves were analysed by scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy. Such phytoliths consisted in silica deposits associated with Cu and other elements (K, Ca, P). Improvement by Si of Cu tolerance in E. andevalensis was clearly related to the inhibition of Cu upward transport. The leaf phytoliths formed in Si-treated plants might have some contribution to tolerance by Cu immobilisation and inactivation. 相似文献
964.
Charitopoulou Maria Anna Kalogiannis Konstantinos G. Lappas Angelos A. Achilias Dimitriοs S. 《Environmental science and pollution research international》2021,28(42):59190-59213
Environmental Science and Pollution Research - The amount of plastics from waste electric and electronic equipment (WEEE) has enormously increased nowadays, due to the rapid expansion and... 相似文献
965.
Caliari Paulo Cezar Pacheco Maria José Ciríaco Lurdes Lopes Ana 《Environmental science and pollution research international》2021,28(19):24138-24149
Environmental Science and Pollution Research - The aim of this work was to evaluate the pollutant load from tannery effluents treated by chemical coagulation (CC) followed by electro-oxidation... 相似文献
966.
Marson Eduardo O. Paniagua Cleiseano E.S. Costa-Serge Nayara M. Sousa Raquel M.F. Silva Gizele D. Becker Raquel W. Sirtori Carla Starling Maria Clara V. M. Carvalho Solidônio R. Trovó Alam G. 《Environmental science and pollution research international》2021,28(19):23582-23594
Environmental Science and Pollution Research - As the presence of antibiotics in environmental waters enhances antimicrobial resistance, photolysis and heterogeneous photocatalysis of... 相似文献
967.
Rodrigues Mesquita Tayane Cristiele Pereira Rosa André de Oliveira Santos Thales Felício Carraro Borges Alisson Calijuri Maria Lúcia de Paula Souza Francianny Maria 《Environmental science and pollution research international》2021,28(36):50001-50016
Environmental Science and Pollution Research - To investigate the feasibility of implementing decentralized sewage treatment systems aiming to meet environmental standards, the performance of three... 相似文献
968.
Romanelli João Paulo Gonçalves Maria Carolina Pereira de Abreu Pestana Luís Fernando Soares Jéssica Akemi Hitaka Boschi Raquel Stucchi Andrade Daniel Fernandes 《Environmental science and pollution research international》2021,28(43):60448-60458
Environmental Science and Pollution Research - The evidence base in environmental sciences is increasing steadily. Environmental researchers have been challenged to handle massive volumes of data... 相似文献
969.
The quality of water in many urban rivers in Latin America is increasingly degrading due to wastewater and runoff discharges from urban sprawl. Due to deficits in sanitary drainage systems, greywater is discharged to the stormwater drainage network generating a continuous dry-weather runoff that reaches rivers without treatment. One of the main challenges in the region is to achieve sustainable management of urban runoff for the recovery of rivers ecosystem integrity. However, retrofitting conventional centralized wastewater drainage networks into the existing urban grid represents important social, economic and technical challenges. This paper presents an alternative adaptive methodology for the design of Nature-based Solutions for decentralized urban runoff treatment. Through this study, technical solutions commonly used for stormwater management were adapted for dry-weather runoff treatment and co-designed for the particular conditions of a representative study area, considering space availability as the main constraining factor for retrofitting in urban areas. The application of a co-design process in a dense neighbourhood of the Great Metropolitan area of Costa Rica brought to light valuable insights about conditions that could be hindering the implementation of NBS infrastructures in Latin America. 相似文献
970.
Bahl Maria Florencia Brodeur Julie Céline Costa Carolina Salgado D’Andrea María Florencia Sansiñena Jesica Alejandra Marino Damián José Natale Guillermo Sebastián 《Environmental science and pollution research international》2021,28(11):13524-13535
Environmental Science and Pollution Research - This paper presents the first acute toxicity data of the natural insecticide spinosad in amphibians. The sensitivity of two neotropical sympatric... 相似文献