11 documents found, page 1 of 2
Occurrence of micropollutants in surface water and removal by catalytic wet per...
Silva, Adriano S.; Zadra Filho, Paulo Cesar; Ferreira, Ana Paula; Roman, Fernanda; Baldo, Arthur Pietrobon; Rauhauser, MadeleineMonitoring campaigns of contaminants of emerging concern (CECs) in surface waters is of utmost importance in evaluating the anthropogenic impact on riparian ecosystems. Beyond identifying pollutants and threats, treatment solutions are also needed to mitigate the adverse effects caused by polluted water discharged into the environment. For years, grab samples have been used to assess water quality, but the resu...
Leather tanning sludge in cement mortar: Sustainable valorisation
Martins, Ramiro; Cabral, Rafaela Mulinari; Pietrobelli, Juliana Martins TeixeiraThis study aims to investigate the valorisation of sludge from Leather Tannery Wastewater Treatment Plants (LTWWTP) by incorporating it into cement mortars. Theoretical framework: The substantial quantity of waste generated by industries coupled with the scarcity of natural resources calls for the analysis, development, and implementation of treatment methods to recover and reuse materials, thereby minimising t...
Eco-friendly cement mortar with wastewater treatment plant sludge upcycling
Grabowski, Thais Theomaris dos Santos; Pietrobelli, Juliana Martins Teixeira; Martins, RamiroThis study aimed to investigate the technical feasibility of replacing cement in mortar production with sludge generated in wastewater treatment plants (WWTPs), prepared using different treatments. The sludge used in the experiments was processed using four different methods to investigate the effect of processing on the mechanical strength of the specimens. The sludge was then mixed with mortar in different pr...
Mining waste as an eco-friendly adsorbent in the removal of industrial basazol ...
Hawerroth, Mariane; Pereira, Eduardo; Almeida, Lariana N.B. de; Martins, Ramiro; Pietrobelli, Juliana Martins TeixeiraThe circular economy seeks to better use materials and minimize waste generation. This article evaluated the use of granite rock powder, a mining residue, as an adsorbent for the Basazol Yellow 5G (BY5G) dye and the reuse of the residue generated by the by treating this effluent in construction products. Characterization of the adsorbent material by N2 physisorption indicated a surface area of 1514 m2 g−1. Ener...
Partial replacement of cement by sewage treatment plant sludge in eco-friendly ...
Martins, Ramiro; Pietrobelli, Juliana Martins Teixeira; Grabowski, Thais Theomaris dos SantosAiming to create alternatives for the disposal of sludge generated in wastewater treatment plants (WWTP) considering the circular economy principles and contributing to the reduction of environmental impacts generated by civil construction, the objective of this work was to evaluate the technical feasibility of the partial replacement of cement in the production of mortars by the sludge produced at the Bragança...
Characterization and primary treatment of the effluent of olive pomace oil extr...
Mazur, Andressa; Pietrobelli, Juliana Martins Teixeira; Martins, RamiroThe olive pomace oil is the principal by-product in the olive oil sector. Nonetheless the production uses olive bagasse after the primary extraction, it also produces by-products and effluents that need strategic approach to possibility reuse and a treatment. This study aimed for the characterization of the effluent from an olive pomace oil extractor industry and investigate the application of physicochemical p...
Effluent characterization and waterbody monitoring from an olive pomace oil ext...
Martins, Ramiro; Pietrobelli, Juliana Martins Teixeira; Mazur, AndressaThe environmental impact is a relevant aspect of the production of Olive oil, it is a relevant Portuguese economic sector, with job creation, maintaining rural populations, however the by-product, olive mill wastewater and olive pomace, became one important focus to the circular economy, one of the many valorizations economic viable is the olive pomace oil. The olive pomace oil industry is responsible for a sec...
Assisted hydrothermal carbonization of agroindustrial byproducts as effective s...
Díaz de Tuesta, Jose Luis; Saviotti, Marcus Chamahum; Roman, Fernanda; Pantuzza, Gabriel F.; Sartori, Hiram J.F.; Shinibekova, Assem A.This work deals with the valorisation of bagasse of sugarcane – BC, bagasse of malt – BM and seed of chia – SC, through its transformation into pyrochars, hydrochars and activated carbons (ACs) by pyrolysis, hydrothermal carbonization (HTC) and sequential HTC and pyrolysis, respectively. The HTC process was carried out in the presence of H2O, FeCl3 and H2SO4 solutions. The materials resulting by HTC in the pres...
Activated carbons prepared from a compost obtained in mechanical biological tre...
Díaz de Tuesta, Jose Luis; Masso, Caroline; Pietrobelli, Juliana Martins Teixeira; Silva, Adrián; Faria, Joaquim; Gomes, HelderActivated carbons (ACs) obtained from different organic wastes have been reported in several works, aiming the valorisation of low-cost useful materials [1]. However, organic wastes typically contain inorganic substances, which can be leached away from the prepared ACs when employed in oxidative aqueous conditions. The current study proposes different strategies to produce ACs from a compost obtained (in excess...
Catalytic activity of carbon based materials developed from compost derived fro...
Díaz de Tuesta, Jose Luis; Masso, Caroline; Pietrobelli, Juliana Martins Teixeira; Praça, Paulo; Silva, Adrián; Faria, Joaquim; Gomes, HelderIn waste processing facilities equipped with mechanical biological treatment (MTB) systems, the municipal solid waste (MSW) is typically separated in organic residues, recyclable waste and rejects. The organic fraction is then treated by anaerobic digestion, obtaining biogas and a compost that can be used in agriculture. However, the current waste management legislation in Europe and the expected developments r...