cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.14283657.v1
title: Water safety on Castanhão reservoir, Ceará, Brazil: application of institutional systematization matrix

description: ABSTRACT Water security involves sustainable use and water system protection, in order to have water in quantity and quality acceptable to the health, livelihoods, ecosystems and production. Regarding water quantity management, many advances have occurred since the approval of the Brazilian Water Resources Policy in 1997. The competences and responsibilities of each entity of the system are defined in the relevant legislation. Regarding water quality management, however, there is a large number of applicable regulations and competent institutions to act in the supervision and regulation of the matter. Due to this range of information, the need to systematize and synthesize the legal/institutional framework is configured. For this finality, this work proposes to associate the institutional systematization matrix methodology with the environmental monitoring instruments already practiced in Ceará, Brazil. It is hoped that this association will allow the visualization of potentially polluting sources, relevant regulations and competent institutions. The methodology was applied to the Castanhão Reservoir, in the State of Ceará, Brazil. With this methodology, it was possible to identify that 50% of pollutant sources are generated by public entities (Companhia de Água e Esgoto do Ceará - CAGECE; Serviço Autônomo de Água e Esgoto - SAAE; or city halls) and the other 50% correspond to individuals or legal entities. This means that control actions over public entities could solve an important part of the hydrographic basin pollution. Regulatory agencies and the independent environment entities can contribute to reduce pollution sources.
DOI: 10.6084/m9.figshare.14283660
title: Pilot design of an efficient, leak-proof and economical flush system

description: ABSTRACT In the last decades, water consumption per capita has been reduced. Nevertheless, several countries look for additional reduction in water consumption through better process of equipment functions. This paper describes a new design for an economical flush system in which there is neither flapper nor gasket that could leak. Prototypes with new design have been made and tested; after a 12 months’ test with one of them, by a family of 4 people, the project had good performance, with reduction in water consumption. This new design does not use gasket, works with two boxes (internal box and external box), presents good drag ability and demonstrates good water efficiency both for 3 L and 6 L flushes.
DOI: 10.6084/m9.figshare.14283657
title: Water safety on Castanhão reservoir, Ceará, Brazil: application of institutional systematization matrix

description: ABSTRACT Water security involves sustainable use and water system protection, in order to have water in quantity and quality acceptable to the health, livelihoods, ecosystems and production. Regarding water quantity management, many advances have occurred since the approval of the Brazilian Water Resources Policy in 1997. The competences and responsibilities of each entity of the system are defined in the relevant legislation. Regarding water quality management, however, there is a large number of applicable regulations and competent institutions to act in the supervision and regulation of the matter. Due to this range of information, the need to systematize and synthesize the legal/institutional framework is configured. For this finality, this work proposes to associate the institutional systematization matrix methodology with the environmental monitoring instruments already practiced in Ceará, Brazil. It is hoped that this association will allow the visualization of potentially polluting sources, relevant regulations and competent institutions. The methodology was applied to the Castanhão Reservoir, in the State of Ceará, Brazil. With this methodology, it was possible to identify that 50% of pollutant sources are generated by public entities (Companhia de Água e Esgoto do Ceará - CAGECE; Serviço Autônomo de Água e Esgoto - SAAE; or city halls) and the other 50% correspond to individuals or legal entities. This means that control actions over public entities could solve an important part of the hydrographic basin pollution. Regulatory agencies and the independent environment entities can contribute to reduce pollution sources.
DOI: 10.6084/m9.figshare.14283660.v1
title: Pilot design of an efficient, leak-proof and economical flush system

description: ABSTRACT In the last decades, water consumption per capita has been reduced. Nevertheless, several countries look for additional reduction in water consumption through better process of equipment functions. This paper describes a new design for an economical flush system in which there is neither flapper nor gasket that could leak. Prototypes with new design have been made and tested; after a 12 months’ test with one of them, by a family of 4 people, the project had good performance, with reduction in water consumption. This new design does not use gasket, works with two boxes (internal box and external box), presents good drag ability and demonstrates good water efficiency both for 3 L and 6 L flushes.
DOI: 10.6084/m9.figshare.14283666
title: Economic feasibility study of the implementation of a waste recycling plant construction in Pato Branco city, Paraná, using the multi-index methodology extended

description: ABSTRACT This paper analyzed the economic feasibility of installing a construction waste recycling plant, through the return expectations and risks associated with its implementation. The investment analysis study was performed using multi-index methodology via the web system $LV€P. A stochastic analysis also was performed using the Monte Carlo simulation, in order to further analyze the risks involved in the project. The results showed that there is low risk and economic feasibility in implementation of this plant, because the probability of the Net Present Value NPV to be zero is less than 0.22%. The performed preliminary analysis showed that the decision to invest in this project is presented as a good investment option, and its implementation is recommended because it is a project with the possibility of a good financial return.
DOI: 10.6084/m9.figshare.14283666.v1
title: Economic feasibility study of the implementation of a waste recycling plant construction in Pato Branco city, Paraná, using the multi-index methodology extended

description: ABSTRACT This paper analyzed the economic feasibility of installing a construction waste recycling plant, through the return expectations and risks associated with its implementation. The investment analysis study was performed using multi-index methodology via the web system $LV€P. A stochastic analysis also was performed using the Monte Carlo simulation, in order to further analyze the risks involved in the project. The results showed that there is low risk and economic feasibility in implementation of this plant, because the probability of the Net Present Value NPV to be zero is less than 0.22%. The performed preliminary analysis showed that the decision to invest in this project is presented as a good investment option, and its implementation is recommended because it is a project with the possibility of a good financial return.
DOI: 10.6084/m9.figshare.14283669
title: Physical-chemical characterization and determination of aerobic kinetic coefficients for the removal of organic matter from agro-industrial wastewater

description: ABSTRACT The aim of the present work was to perform a physicochemical characterization of different agroindustrial wastewaters (AIW), to apply first and second order kinetic models to verify which one best describes the progression of the biochemical oxygen demand (BOD) and to determine the aerobic kinetics coefficients of organic matter removal from AIW. The BOD progression assay was performed from the incubation of AIW in a respirometric system (Oxitop®). The first and second order kinetic models were evaluated by mean square error (RMSE), normalized mean square error (NRMSE), and Akaike Information Criterion (AIC). The aerobic biodegradation kinetics of the AIW evaluated was better fitted to the first order model in terms of total and soluble BOD. In the total BOD progression, the highest coefficient of first-order deoxygenation (k ') was that of slaughterhouse wastewater (SW; 0.56 d-1) and the lowest was that of swine wastewater (SSW; 0.16 d-1). The deoxygenation coefficients determined in the present work were representative, and can be used for the simulation of degradation processes of organic matter under aerobic conditions.
DOI: 10.6084/m9.figshare.14283670
title: Aerobic granular sludge technology in domestic wastewater treatment: opportunities and challenges

description: ABSTRACT Considered by many professionals as one of the greatest advances in wastewater treatment in the 21st century, the aerobic granular sludge (AGS) reactors have received great attention in terms of research and full-scale installation in different continents and weather conditions. There are frequent reports in the literature on removal efficiencies above 90% in terms of COD, total nitrogen and total phosphorus, as well as the maintenance of high solids concentrations (&gt; 8 g VSS/L) in the reactor without the need for secondary clarifier and sludge recirculation. However, there are also several reports on problems of biomass instability, long periods of granule formation (mainly when using real sewage), formation of small granules, nitrite accumulation (incomplete denitrification), and other issues. This review explores the mechanisms required for granulation in full-scale WWTP treating sanitary wastewater, including the main microbial groups present in the AGS, key granule formation parameters, reactor configurations, etc. In addition, some issues on the operation and maintenance of these full-scale systems are discussed.
DOI: 10.6084/m9.figshare.14283670.v1
title: Aerobic granular sludge technology in domestic wastewater treatment: opportunities and challenges

description: ABSTRACT Considered by many professionals as one of the greatest advances in wastewater treatment in the 21st century, the aerobic granular sludge (AGS) reactors have received great attention in terms of research and full-scale installation in different continents and weather conditions. There are frequent reports in the literature on removal efficiencies above 90% in terms of COD, total nitrogen and total phosphorus, as well as the maintenance of high solids concentrations (&gt; 8 g VSS/L) in the reactor without the need for secondary clarifier and sludge recirculation. However, there are also several reports on problems of biomass instability, long periods of granule formation (mainly when using real sewage), formation of small granules, nitrite accumulation (incomplete denitrification), and other issues. This review explores the mechanisms required for granulation in full-scale WWTP treating sanitary wastewater, including the main microbial groups present in the AGS, key granule formation parameters, reactor configurations, etc. In addition, some issues on the operation and maintenance of these full-scale systems are discussed.
DOI: 10.6084/m9.figshare.14283663
title: Impacts of the disordered land occupancy: a study about an urban consolidated area in Campina Grande - PB

description: ABSTRACT The intense and unplanned urban occupation entails direct problems to the population. One of these problems is the decrease in the permeability index of soil generated by increasing paving that always accompanies the urban development of a region. As a result, the drainage system may experience overloads, once the infiltration capacity of the soil is changed and the paving increases the flow rate and the peak flows. This paper presents an integrated analysis of land use dynamics over the course of 32 years and the behavior of the urban micro-drainage system to the current scenario of occupation of Catolé and Sandra Cavalcante neighborhoods, in Campina Grande, PB. It verifies the disability of the micro-drainage system to accompany the accelerated growth of the region, leading in points of flooding that generate losses and discomforts to the population in more concentrated rain periods.
DOI: 10.6084/m9.figshare.14283671
title: Environmental performance of the allocation and urban solid waste treatment with energetic reuse through life cycle assessment at CTR - Caieiras

description: ABSTRACT The main destination of municipal solid waste (MSW) collected in Brazil has been landfills and sanitary landfills. In rare cases, other solutions are applied, which may bring additional benefits to localities. The use of MSW is a promising alternative. At once, it is an alternative of generating electricity. In this case, although it is not sufficient to support a strategy to expand the Brazilian electricity supply, in the long term, the generation of electricity through MSW is an important element of a regional or local strategy and therefore should not be disregarded. In that context, this study sought to study the feasibility of implementing alternative and complementary technologies for the disposal of MSW with generation of electricity, taking into account its environmental impacts and using the Life Cycle Assessment (LCA). The results showed that, among the alternatives taken into account in this study, the generation of electric energy by combined biological and mechanical Treatment and Incineration is the most attractive in terms of environmental impacts. The generation of electricity by means of the mass burning incineration process showed to be also attractive in terms of environmental impacts. As a general conclusion of this study it was identified the existence of alternatives and opportunities for implementation of projects related to the generation of electric energy in Brazil especially by the incineration process, although there are still economic, political and social needs that must be overcome.
DOI: 10.6084/m9.figshare.14283663.v1
title: Impacts of the disordered land occupancy: a study about an urban consolidated area in Campina Grande - PB

description: ABSTRACT The intense and unplanned urban occupation entails direct problems to the population. One of these problems is the decrease in the permeability index of soil generated by increasing paving that always accompanies the urban development of a region. As a result, the drainage system may experience overloads, once the infiltration capacity of the soil is changed and the paving increases the flow rate and the peak flows. This paper presents an integrated analysis of land use dynamics over the course of 32 years and the behavior of the urban micro-drainage system to the current scenario of occupation of Catolé and Sandra Cavalcante neighborhoods, in Campina Grande, PB. It verifies the disability of the micro-drainage system to accompany the accelerated growth of the region, leading in points of flooding that generate losses and discomforts to the population in more concentrated rain periods.
DOI: 10.6084/m9.figshare.14283669.v1
title: Physical-chemical characterization and determination of aerobic kinetic coefficients for the removal of organic matter from agro-industrial wastewater

description: ABSTRACT The aim of the present work was to perform a physicochemical characterization of different agroindustrial wastewaters (AIW), to apply first and second order kinetic models to verify which one best describes the progression of the biochemical oxygen demand (BOD) and to determine the aerobic kinetics coefficients of organic matter removal from AIW. The BOD progression assay was performed from the incubation of AIW in a respirometric system (Oxitop®). The first and second order kinetic models were evaluated by mean square error (RMSE), normalized mean square error (NRMSE), and Akaike Information Criterion (AIC). The aerobic biodegradation kinetics of the AIW evaluated was better fitted to the first order model in terms of total and soluble BOD. In the total BOD progression, the highest coefficient of first-order deoxygenation (k ') was that of slaughterhouse wastewater (SW; 0.56 d-1) and the lowest was that of swine wastewater (SSW; 0.16 d-1). The deoxygenation coefficients determined in the present work were representative, and can be used for the simulation of degradation processes of organic matter under aerobic conditions.
DOI: 10.6084/m9.figshare.14283672
title: Textile effluent characterization and evaluation of capacity color removal using the fungus Lasiodiplodia theobromae MMPI

description: ABSTRACT The industrial processes of textile production are characterized by the use of large volumes of water during the washing steps and fabric dyeing, resulting in effluent with enormous diversity and chemical complexity. The presence of dissolved dyes is quite noticeable and problematic, considering their recalcitrance and slow degradation kinetic. In this work, the Lasiodiplodia theobromae MMPI fungus was evaluated for their ability to removing color from effluent. The assays were performed in a bench-scale bioreactor (5 L) with an incubation time of 192 hours. The decoloring efficiency ranged from 19.52% on 24h to 91,26% on 168 h and the mycelial biomass production ranged from 1.23 g.L-1 (24 h) to 7.60 g.L-1 (168 h). Production of exopolysaccharide (EPS) also was observed, with amounts ranged from 2.84 g.L-1 (24 h) to 4.28 g.L-1 (48 h). The characterization of the effluent showed some values of control parameters outside the discharge standards required by Brazilian law, with high Chemical Oxygen Demand (COD) (659 mg.L-1) and Biochemical Oxygen Demand (BOD5) (328 mg.L-1). The toxicity analysis using the microcrustacean Artemia salina, showed that the raw effluent concentration that caused 50% mortality of organisms (LC50) was approximately 14.72% (v/v) and at the end of treatment was 4.98% (v/v). Although the fungus was not efficient in biological detoxification of the effluent, it showed promising results for its color removal capacity, demonstrating potential for use in auxiliary treatment processes of textile effluents for the color removal.
DOI: 10.22008/fk2/oiajvo/ispe18
title: r0.tif

description: SICE version: Cloud removed, PPGC, SNAP7, pySICEv1.4
DOI: 10.6084/m9.figshare.14283671.v1
title: Environmental performance of the allocation and urban solid waste treatment with energetic reuse through life cycle assessment at CTR - Caieiras

description: ABSTRACT The main destination of municipal solid waste (MSW) collected in Brazil has been landfills and sanitary landfills. In rare cases, other solutions are applied, which may bring additional benefits to localities. The use of MSW is a promising alternative. At once, it is an alternative of generating electricity. In this case, although it is not sufficient to support a strategy to expand the Brazilian electricity supply, in the long term, the generation of electricity through MSW is an important element of a regional or local strategy and therefore should not be disregarded. In that context, this study sought to study the feasibility of implementing alternative and complementary technologies for the disposal of MSW with generation of electricity, taking into account its environmental impacts and using the Life Cycle Assessment (LCA). The results showed that, among the alternatives taken into account in this study, the generation of electric energy by combined biological and mechanical Treatment and Incineration is the most attractive in terms of environmental impacts. The generation of electricity by means of the mass burning incineration process showed to be also attractive in terms of environmental impacts. As a general conclusion of this study it was identified the existence of alternatives and opportunities for implementation of projects related to the generation of electric energy in Brazil especially by the incineration process, although there are still economic, political and social needs that must be overcome.
DOI: 10.6084/m9.figshare.14283672.v1
title: Textile effluent characterization and evaluation of capacity color removal using the fungus Lasiodiplodia theobromae MMPI

description: ABSTRACT The industrial processes of textile production are characterized by the use of large volumes of water during the washing steps and fabric dyeing, resulting in effluent with enormous diversity and chemical complexity. The presence of dissolved dyes is quite noticeable and problematic, considering their recalcitrance and slow degradation kinetic. In this work, the Lasiodiplodia theobromae MMPI fungus was evaluated for their ability to removing color from effluent. The assays were performed in a bench-scale bioreactor (5 L) with an incubation time of 192 hours. The decoloring efficiency ranged from 19.52% on 24h to 91,26% on 168 h and the mycelial biomass production ranged from 1.23 g.L-1 (24 h) to 7.60 g.L-1 (168 h). Production of exopolysaccharide (EPS) also was observed, with amounts ranged from 2.84 g.L-1 (24 h) to 4.28 g.L-1 (48 h). The characterization of the effluent showed some values of control parameters outside the discharge standards required by Brazilian law, with high Chemical Oxygen Demand (COD) (659 mg.L-1) and Biochemical Oxygen Demand (BOD5) (328 mg.L-1). The toxicity analysis using the microcrustacean Artemia salina, showed that the raw effluent concentration that caused 50% mortality of organisms (LC50) was approximately 14.72% (v/v) and at the end of treatment was 4.98% (v/v). Although the fungus was not efficient in biological detoxification of the effluent, it showed promising results for its color removal capacity, demonstrating potential for use in auxiliary treatment processes of textile effluents for the color removal.
DOI: 10.6084/m9.figshare.14283674
title: Disinfection of greywater by heterogeneous photocatalysis

description: ABSTRACT Proper disinfection of greywater is needed to ensure the safety of its reuse, especially in applications with potential for human exposure. Various advanced oxidation processes have been used in recent years for the degradation of organic contaminants, as well as for disinfection of water and wastewater. The purpose of this study was to test TiO2 supported in microtubes to disinfect greywater by photocatalysis in order to reuse it in sanitary bowl. The greywater used in the experiments was collected after passing through a treatment system consisting of an evapotranspiration tank followed by constructed wetland with horizontal flow. Batch tests were conducted using a cylindrical photochemical reactor of 1.0 L (total volume of the reactor), filled with small glass Pyrex cylinders with supported TiO2. For disinfection tests, the processes UV, H2O2, UV/TiO2, UV/H2O2 and UV/TiO2/H2O2 were used. It was possible to obtain a homogeneous layer of TiO2 deposited in small Pyrex glass tubes with an average thickness of 35.3 µm; this layer was able to promote an increase in the greywater disinfection. However, even with a greater disinfection power of TiO2 compared with photolysis (UV), the processes with hydrogen peroxide was much more efficient in disinfection (total inactivation of total coliforms, enterococci and Pseudomonas aeruginosa) and in the removal of organic matter in terms of chemical oxygen demand (around 60%). Samples stored at a room temperature and wrapped in plastic dark showed no bacterial regrowth after 24 hours of storage after the experiments, thus showing the viability of treated greywater for domestic reuse.