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Universidade Estadual Paulista (UNESP). Campus de Araraquara. Instituto de Química (IQ) (Institutional affiliation from the last research proposal) Birthplace: Brazil
Denise Bevilaqua in research grants and scholarships supported by FAPESP.
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The Central Laboratory of Chemical and Structural Analysis (LACAQUE) wasestablished to support research at the Chemistry Institute of the Araraquara Campus(IQ) and ensure the sustainability of IQ's equipment park. LACAQUE's regulations wereapproved and implemented during the tenth ordinary meeting of the IQ Congregationon December 18, 2023, as per ordinance D-IQAr 70/2023. LACAQUE…
The treatment plants of sewage and industrial effluents may have by conception the use of anaerobic reactors for the biological treatment of liquid waste. This treatment produces biogas, consisting of methane, carbon dioxide and traces of other gases such as H2S. Currently, the H2S control is carried out by physico-chemical technologies; however, these methods have high operating costs. A…
The bioleaching is a biotechnological process to obtain valuable metals, like copper, uranium, gold and nickel. This process is based on the biochemical activity of a group of chemoautotrophic and acidophilic bacteria, which oxidize inorganic substrates, including metal sulfides, as the central metabolism of obtaining energy for their growth. Despite the increased interest in the commerci…
Using sulfate reducing bacteria for treatment and metal recovering from acid mine drainage (AMD) have been taking place for decades. However, the formation of small and non sedimentable particles, which are hard to recover, hinder this application in larger scale. The use of lignocellulosic material have been seen as a promissor strategy to overcome this problem and help with metal recove…
Biological sulfate reduction associated with chemical precipitation of metal sulfide is a promising strategy for acid mine drainage (AMD) treatment, and metal recovery. However, the formation of fine particles of metal sulphides in bioreactors makes their recovery difficult. The use of slow release electron donor could overcome this problem, since it would would prevent the formation of s…
This work aims to study the influence of various electron donors for sulfate reduction in acid mine drainage (AMD), focusing sulfide metals precipitation and recovery. Although previous research had investigated the effect of electron donors over the sulfate reducers bacteria performance, it is not clear how these compounds interfere with metal removal mechanisms. Thus, it is important to…
Acid mine dreinage (AMD) is an effluent which has low pH and high sulfate concentrations and is generated from metal sulfide oxidation in mining regions. Cases where AMD contacts water bodies may cause serious environmental damages, as happened in the Tinto river in Spain, which has a pH value close to 2.3, therefore is considered dead.Due to the severity of these problems, many chemical …
(Only some records are available in English at this moment)
Bioremediation using sulfate reducing bacteria (SRB) is a promisor technology for acid mine drainage (AMD) treatment. Bioprocesses typically offer advantages like low energy consumption, reduced sludge production, and the potential for metal recovery. SRB metabolism generates sulfide, which can be employed to precipitate heavy metals from AMD. While SRB can be utilized in various methods,…
This research plan aims to investigate the viability of sugarcane bagasse (SB) as a slow release electron donor (SRED) for sulphate reduction, seeking to apply it in metal recovery from acid mine drainage (AMD). Acid mine drainage represents an environmental liability, and biological sulphate reduction based technologies are a possibility to metal recovery and mitigation of impacts. Since…
Indiscriminate wastewater discharges with high sulfate containing can affect water quality and aquatic ecosystems, requiring a previous treatment. An alternative treatment for this effluent is sulfate reducing reactors with microorganisms that oxidize organic compounds and use sulfate as electron acceptor, producing hydrogen sulfide. Most of the studies in literature focus on sulfate remo…
| 1 / 1 | Ongoing grants |
| 2 / 2 | Completed research grants |
| 1 / 1 | Ongoing scholarships in Brazil |
| 9 / 7 | Completed scholarships in Brazil |
| 3 / 3 | Completed scholarships abroad |
| 16 / 14 | All research grants and scholarships |
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