17 research outputs found
Environmental fate of selected anticancer drugs: Photodegradation, biodegradation and toxicity of Cyclophosphamide, 5-Fluorouracil, Methotrexate and Imatinib
No full textCombined use of VUV and UVC photoreactors for the treatment of hospital laundry wastewaters: Reduction of load parameters, detoxification and life cycle assessment of different configurations
No full textDegradation and Elimination of Anticancer Drugs by Water and Wastewater Treatment – Toxicity and Biodegradability Before and After the Treatment
No full textO reino jesuítico germânico nas margens do Rio Uruguai: aspectos da formação da colônia Porto Novo (Itapiranga)
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências HumanasO propósito deste estudo é analisar a formação da colônia Porto Novo no Oeste Catarinense, especialmente seu caráter utópico. Planejada para ser étnica e religiosamente homogênea, a formação desta colônia foi mais uma das iniciativas dos Jesuítas alemães que se haviam instalado no Rio Grande do Sul a partir da segunda metade do século XIX. Inspirados no catolicismo europeu, especialmente germânico, mais voltado para as questões sociais e políticas, os Inacianos passaram a desenvolver junto aos imigrantes alemães e seus descendentes algumas das atividades que conheceram na Alemanha. Uma delas é a fundação em 1912 da Sociedade União Popular para católicos de língua alemã, uma associação civil de leigos ramificada por toda região de colonização alemã do Rio Grande do Sul e mais tarde também do oeste catarinense. Os objetivos mais amplos dos Jesuítas eram unir os católicos para a solução de seus problemas e, com isso, fortalecer sua religiosidade católica. Com este espírito planejaram formar a colônia Porto Novo: um lugar quase idílico, afastada dos perigos que atacam a religiosidade dos fiéis, talvez tendo ainda na memória as antigas reduções jesuíticas dos Sete Povos das Missões. O objetivo maior da formação da colônia era, portanto, formar uma comunidade homogênea onde os colonos pudessem progredir economicamente e manter suas características étnicas e sua religiosidade católic
Performance of an integrated system combining microalgae and vertical flow constructed wetlands for urban wastewater treatment
No full textPromoting the Establishment of China’s Rural Domestic Wastewater Standard System Based on the 6S Principle
No full textThe standardization of rural domestic wastewater (RDW) management is crucial for mitigating its negative environmental impacts. China has seen a significant increase in RDW emissions over the past decade, paralleled by the development of RDW management standards. This study reviews the development process of China’s RDW management standard system, analyzes RDW management practices in terms of standards in the United States, Japan, the European Union, and New Zealand. Considering the current situation and characteristics of China’s RDW treatment industry, this paper proposes a novel 6S principle that includes Specificity (adjusting standards to local conditions), Scientificity (ensuring the feasibility of standard indicators and thresholds), Suitability (developing technical guidelines suitable for different regions), Supervision (implementing monitoring, management, maintenance, and evaluation of RDW treatment facilities), Servitization (promoting reclaimed water reuse and nutrient recovery), and Systemization (establishing a complete RDW standard system). This principle covers the entire life cycle of RDW treatment system and offers targeted suggestions to address the strengths and weakness of the RDW management standard system. China can update and form a comprehensive RDW standard system and then improve the RDW management according to the 6S principle. The present paper has the potential to guide the establishment and improvement of RDW standard system in China and other developing countries
Integrated system with constructed wetlands for the treatment of domestic wastewaters generated at a rural property – Evaluation of general parameters ecotoxicity and cytogenetics
No full textFloating treatment wetlands in domestic wastewater treatment as a decentralized sanitation alternative
No full textFloating treatment wetlands (FTW) are technologies that have stood out for their efficiency, ease of installation and maintenance. They consist of macrophytes emerging in a floating structure that keep the plant roots in direct contact with the effluent regardless of the water flow variation over time, allowing the removal of pollutants by various processes. The application of FTWs for the treatment of domestic wastewater has the advantage of low costs in terms of removing nutrients and at the same time reducing the cost of maintenance and energy consumption when compared to the conventional centralized treatment of effluent. The lack of wastewater treatment in areas distant from urban centers is even more limited, mainly due to the high cost of tubing and pumps for the effluent to reach the treatment plants. Therefore, the objective of this study was to research FTW systems applied to the decentralized treatment of domestic wastewater. First, a bibliometric analysis was conducted comparing the main issues involving FTW, and the challenges regarding the integration of FTW and domestic wastewater treatment systems. The feasibility of the floating system as a decentralized treatment approach were discussed, as well as the removal of nutrients in domestic wastewater, which was the most covered topic by researchers who developed studies in the area. In addition, other technologies are being integrated into the phytoremediation systems seeking to improve the quality of the treated effluent and assessing the potential reuse in the homes where they are generated and treated, determining the costs and space requirements for the entire process. There is a large research gap regarding the treatment of domestic wastewater by FTW in decentralized systems, mainly in terms of operation, cost assessment and reuse Therefore, further investigations in order to better understand the performance of the process and the reactions that occur with physical, chemical and microbiological removal mechanisms are still necessary
