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81.
Sampaio Emanuel F. S. Rodrigues Carmen S. D. Lima Vanessa N. Madeira Luis M. 《Environmental science and pollution research international》2021,28(6):6437-6449
Environmental Science and Pollution Research - The present study assesses the treatability of a real industrial wastewater (WW) with a high organic load (chemical oxygen demand (COD) above 5800... 相似文献
82.
Marcela M.C. Campos Vanessa H.F. Faria Taciane S. Teodoro Francisco A.R. Barbosa Sérgia M.S. Magalhães 《Journal of environmental science and health. Part. B》2013,48(2):101-107
The bioaccumulation of atrazine and its toxicity were evaluated for the cyanobacterium Microcystis novacekii. Cyanobacterial cultures were grown in WC culture medium with atrazine at 50, 250 and 500 μg L?1. After 96 hours of exposure, 27.2% of the atrazine had been removed from the culture supernatant. Spontaneous degradation was found to be insignificant (< 9% at 500 μg L?1), indicating a high efficiency for the bioaccumulation of atrazine by M. novacekii. There were no atrazine metabolites detected in the culture medium at any of the doses studied. The acute toxicity (EC50) of atrazine to the cyanobacterium was 4.2 mg L?1 at 96 hours demonstrating the potential for M. novacekii to tolerate high concentrations of this herbicide in fresh water environments. The ability of M. novacekii to remove atrazine combined with its tolerance of the pesticide toxicity showed in this study makes it a potential biological resource for the restoration of contaminated surface waters. These findings support continued studies of the role of M. novacekii in the bioremediation of fresh water environments polluted by atrazine. 相似文献
83.
Magness V 《Environmental management》2003,32(1):1-11
Corporate financial statements do not include environmental values. This deficiency has contributed to the criticism that company managers do not include environmental impacts in the internal decision-making process. The accounting profession has not developed effective environmental reporting guidelines. This situation contributes to a second problem: the apparent inability of corporate reports to provide useful information to external parties. It has been suggested that by using nonmarket valuation methodologies, financial statements can be used to measure progress toward sustainable development. Nonmarket valuations are not generally accepted by the accounting profession. They are too subjective to support effective decisions, and too costly to obtain. Furthermore, demand for this sort of information appears small. Some of these issues may be resolved over time. The most serious challenge, however, concerns how enhanced financial reports would be used. Financial statements are supposed to help investors assess the amount, timing, and uncertainty of future cash flows. A substantial portion of environmental value is based on nonuse benefits, much of which will never be realized in company cash flows. In other words, the role of financial statements would have to change. Furthermore, since there is no general agreement as to the meaning of sustainable development, efforts to operationalize the term have been fraught with difficulty. Moreover, monetization of environmental values could jeopardize their preservation, leaving some to question the overall objective of this form of reporting. For these reasons, while it is to be hoped that better reporting of environmental impacts will be forthcoming, the greatest advances will likely be outside the financial statements themselves. 相似文献
84.
Carmen Echebarria Jose M. Barrutia Ainhize Eletxigerra Patrick Hartmann Vanessa Apaolaza 《Journal of Environmental Planning and Management》2018,61(8):1289-1317
This article presents a systematic literature review of 109 articles (1992–2015) dealing with Local Agenda 21 processes worldwide. It analyzes two essential elements of Local Agenda 21: (1) the holistic approach of the sustainable development concept and (2) the main driving forces behind such processes. It shows that, although at the beginning, sustainability was seen as a natural extension of environmental policy work, it has been perceived over recent years as a guiding principle applied to issues of environment, economic development, and social welfare, and Local Agenda 21 is perceived as a coherent approach to sustainability planning. In addition, Local Government Strategy is the main typology followed, although it suffers from important limitations. Future studies could focus on local sustainability process outcomes. Further quantitative studies would be welcome, given the qualitative case study dominance in the field. We conclude with a research agenda to tackle theoretical, methodological, and empirical lacunae. 相似文献
85.
86.
87.
Rodin Sarah Champagne Pascale Mann Vanessa 《Environmental science and pollution research international》2023,30(4):8868-8882
Environmental Science and Pollution Research - Sustainable long-term solutions to managing tailings storage facilities (TSFs) are integral for mines to operate in a safe and environmentally... 相似文献
88.
Vanessa N. Lima Carmen S. D. Rodrigues Luis M. Madeira 《Environmental science and pollution research international》2018,25(35):34851-34862
The aim of this study was to assess the degradation and mineralization of hydroquinone (HQ) by the Fenton’s process in a bubble column reactor (BCR). The effect of the main operating variables, namely, air flow rate, effluent volume, hydrogen peroxide (H2O2) concentration, catalyst (Fe2+) dose, initial pH, and temperature, were assessed. For all air flow rates tested, no concentration gradients along the column were noticed, evidencing that a good mixing was reached in the BCR. For the best conditions tested ([H2O2] = 500 mg/L, [Fe2+] = 45 mg/L, T = 24 °C, Q air = 2.5 mL/min, pH = 3.0, and V = 5 L), complete HQ degradation was reached, with ~ 39% of total organic carbon (TOC) removal, and an efficiency of the oxidant use—η H2O2—of 0.39 (ratio between TOC removed per H2O2 consumed normalized by the theoretical stoichiometric value); moreover, a non-toxic effluent was generated. Under these conditions, the intermediates and final oxidation compounds identified and quantified were a few carboxylic acids, namely, maleic, pyruvic, and oxalic. As a strategy to improve the TOC removal, a gradual dosage of the optimal H2O2 concentration was implemented, being obtained ~ 55% of mineralization (with complete HQ degradation). Finally, the matrix effect was evaluated, for which a real wastewater was spiked with 100 mg/L of HQ; no reduction in terms of HQ degradation and mineralization was observed compared to the solution in distilled water. 相似文献
89.
Vanessa de Jesus Gaffney Vitor Vale Cardoso Eugénia Cardoso Ana Paula Teixeira José Martins Maria João Benoliel Cristina Maria Martins Almeida 《Environmental science and pollution research international》2017,24(17):14717-14734
Wastewater treatments can eliminate or remove a substantial amount of pharmaceutical active compounds (PhACs), but there may still be significant concentrations of them in effluents discharged into surface water bodies. Beirolas wastewater treatment plant (WWTP) is located in the Lisbon area and makes its effluent discharges into Tagus estuary (Portugal). The main objective of this study is to quantify a group of 32 PhACs in the different treatments used in this WWTP. Twelve sampling campaigns of wastewater belonging to the different treatments were made in 2013–2014 in order to study their removal efficiency. The wastewaters were analysed by solid phase extraction (SPE) and ultra-performance liquid chromatography coupled with tandem mass detection (UPLC–MS/MS). The anti-diabetics were the most frequently found in wastewater influent (WWI) and wastewater effluent (WWE) (208 and 1.7 μg/L, respectively), followed by analgesics/antipyretics (135 μg/L and < LOQ, respectively), psychostimulants (113 and 0.49 μg/L, respectively), non-steroidal anti-inflammatory drugs (33 and 2.6 μg/L, respectively), antibiotics (5.2 and 1.8 μg/L, respectively), antilipidemics (1.6 and 0.24 μg/L, respectively), anticonvulsants (1.5 and 0.63 μg/L, respectively) and beta blockers (1.3 and 0.51 μg/L, respectively). A snapshot of the ability of each treatment step to remove these target PhACs is provided, and it was found that global efficiency is strongly dependent on the efficiency of secondary treatment. Seasonal occurrence and removal efficiency was also monitored, and they did not show a significant seasonal trend. 相似文献
90.
Adriana Wigh Alain Devaux Vanessa Brosselin Adriana Gonzalez-Ospina Bruno Domenjoud Selim Aït-Aïssa Nicolas Creusot Antoine Gosset Christine Bazin Sylvie Bony 《Environmental science and pollution research international》2016,23(4):3008-3017
A mixture of urban and hospital effluents (50 % v/v) was evaluated for ecotoxicity with an advanced bioassay battery. Mixed effluents were tested before any treatment, after biological treatment alone, and after biological treatment followed by a tertiary ozonation (15 mg O3/L). Laying a high value on the continuance of organisms’ fitness, essential to preserve a healthy receiving ecosystem, the main objective of this study was to combine normalized bioassays with newly developed in vivo and in vitro tests in order to assess alteration of embryo development, growth and reproduction, as well as genotoxic effects in aquatic organisms exposed to complex wastewater effluents. Comparison of the bioassays sensitivity was considered. Contrary to the lack of toxicity observed with normalized ecotoxicity tests, endpoints measured on zebrafish embryos such as developmental abnormalities and genotoxicity demonstrated a residual toxicity in wastewater both after a biological treatment followed or not by a tertiary O3 treatment. However, the ozonation step allowed to alleviate the residual endocrine disrupting potential measure in the biologically treated effluent. This study shows that normalized bioassays are not sensitive enough for the ecotoxicological evaluation of wastewaters and that there is a great need for the development of suitable sensitive bioassays in order to characterize properly the possible residual toxicity of treated effluents. 相似文献