Periódico Eletrônico Fórum Ambiental da Alta Paulista

The behavior of permeable paving properties using different materials in their compositions: a review of the literature

Amanda Rafaely Monte do Prado — 2023-07-26

This systematic review addresses the behavior of the properties of permeable pavements with different materials in their compositions, with the objective of raising the state of the art of this area of study in a worldwide scenario. For this, the largest possible number of papers available was listed, according to the eligibility and quality criteria, detected in the Engineering Village, Scopus and Science Direct databases. After reading the titles and abstracts of all identified papers, 28 were chosen associated with the theme, of which 15 were included for the review. This result made it possible to demonstrate that the compensatory technique of permeable pavement is used in several parts of the world, presenting satisfactory results. Several studies presented in this work aimed to replace or even introduce other types of materials in the composition of permeable pavements, seeking to achieve better results in their properties, especially in mechanical and hydraulic.

Mapping of scientific research on ecotoxicological analysis with zebrafish (Danio rerio) in textile effluents between 2011 and 2021

Paula Raíza Alves Cavalcante — 2023-08-09

The high load of pollutants in textile industrial effluents makes it necessary to carry out an ecotoxicological analysis. Mapping these analyses in animal models can help clarify the possible toxicity that these textile effluents have. Thus, the present study aimed to map the evolution of scientific publications regarding the use of zebrafish (Danio rerio) as a bioindicator animal model for environmental quality analysis in the ecotoxicological analysis of textile effluents over a ten-year horizon (2011 to 2021). Three methodological steps were established: a sampling of articles, scientometric and bibliometric analyses, and a systematic literature review. It was observed in twelve documents that ecotoxicological studies of textile effluents using zebrafish are a recent and understudied but promising trend. Among the works, those originating from the Asian continent stood out. The Environmental Science and Pollution Research journal had only two publications. The similarity analysis generated a word tree with seven groups (halos). It was understood that industrial textile effluents have a direct connection with toxicity caused by dyes, and this toxicity can be detected by analysis carried out with the zebrafish bioindicator. It was observed that ecotoxicological assessments with zebrafish could be carried out through different methodologies. However, some proved more complex and presented more robust results, such as embryonic and larval analyses. These analyses were considered beneficial compared to other animal models because they are low cost, require a short period, and comply with an internationally imposed standard (OECD 236). Therefore, it concluded that zebrafish is a promising model for ecotoxicological analysis of textile effluents.

Biochars application for ibuprofen removal by adsorption: Trends in production, operating conditions and mechanisms

Victor Hugo Souza Florentino Porto — 2023-08-15

A presença de drogas como o ibuprofeno no meio ambiente tem gerado preocupação devido à sua persistência e alto risco potencial à biota local e à saúde da população exposta. Assim, métodos de remoção, como a adsorção em biocarvões, vêm recebendo notoriedade pelas altas eficiências e pelo custo reduzido de produção. Portanto, o presente estudo realizou uma revisão sistemática da literatura sobre o desenvolvimento de adsorventes de baixo custo para a remoção de Ibuprofeno de meios aquosos. Foi possível constatar certo aumento na produção de trabalhos dentro do recorte temático, com preferência à utilização de resíduos agrícolas como materiais precursores. As temperaturas de pirólise na literatura variam de 200 a 900 °C, dependendo do processo. Nota-se que duas substâncias (H₃PO₄ e NaOH) são utilizadas com maior frequência em processos de ativação química e vapores superaquecidos em processos de ativação física. Em relação ao processo de adsorção, o pH adotado nos testes foi fator preponderante no processo de adsorção e, também, a maior parte dos artigos relata melhor ajuste ao modelo cinético de pseudossegunda ordem, ou seja, o processo de adsorção geralmente ocorre por quimissorção.

The right to housing in the Sustainable City

Geise Brizotti Pasquotto — 2023-08-17

The right to housing is a fundamental piece to ensure the dignity of the human person. Although it is an independent right, its absence compromises the full exercise of other basic rights, such as health, education, work and leisure. Adequate housing, quality of urban life and social sustainability are intrinsically linked to the ability of the federal, state and municipal government to create laws, execute and supervise compliance with urban regulations for effective and efficient planning. Objective: to go through the legal evolution of the right to housing concept at the international and national levels. Methodology: The work is divided into three axes: the first demonstrates how the right to housing concept was constructed and the second one addresses this issue in the Brazil constitution. The third aims to incorporate public housing policies carried out into the Brazilian legislation analysis. Results: The results aim to verify whether there was a major impact of international and national legislation on public housing policies, with a special focus on federal actions implemented in Brazil.

Use of risk analysis as a tool for water quality safety

Antonio Jorge Silva Araújo Junior — 2023-09-19

This study aimed to use the risk assessment approach "Failure Mode and Effect Analysis" (FMEA) as a water quality safety methodology in the supply system of Belém/PA (Brazil). Eight water quality parameters were used as indicators. Analyzes were carried out at 46 points in the central supply zone, including treatment stations, reservoirs, and the network. The FMEA was applied to all indicators, and the points were divided into three groups: network, reservoirs, and treatment plants. For the network, 18 points of moderate and high risk were identified. For reservoirs and treatment plants, all points presented a moderate risk. In this research, there was no occurrence of negligible, low, or critical risk. The indicators fluoride, total coliforms, and E. coli were the most influential, 15% each, in the risk weights. The fluorine indicator contributed to an increase in the risk category, as it showed 100% non-compliance with Brazilian standards. A risk map was prepared, representing the risks related to water quality for each of the points studied. The risk assessment methodology proved to be an important water safety management tool.