48 documents found, page 1 of 5
Efeito da oxigenação por agitação manual da água na eficiência de inativação de...
Botto, Márcio Pessoa; Mota, Francisco Suetônio Bastos; Ceballos, Beatriz Susana Ovruski deThis study aimed at evaluating the manual agitation effect on inactivation efficiency of thermotolerant coliforms of water bottles submitted to solar disinfection. Agitated bottles and non-agitated bottles were exposed to sunlight from 9:00 a.m. to 3:00 p.m. Dissolved oxygen (DO) and thermotolerant coliforms concentrations were analyzed hourly. The solar disinfection improved the water quality, reducing thermot...
Uso de esgoto doméstico tratado na irrigação da cultura da melancia
Rego, Juliana de Lima; Oliveira, Edglerdânia Luzia Lima de; Chaves, Arilene Franklin; Araújo, Ana Paula B.; Bezerra, Francisco Marcus LimaThis research aimed to monitor watermelon development, variety Crimson Sweet, irrigated with treated sewage, in comparison with a control irrigated with fresh water. Additionally, the sanitary aspects regarding the reuse of effluents in irrigation were evaluated, based on detection of pathogens in the fruits, and physical-chemical characterization of the waters. The productivity obtained with drip irrigation an...
Zeólita 4A para purificação do gás de aterro sanitário
Souza Filho, José Demontier Vieira de; Lima, Ari Clecius Alves de; Stefanutti, Ronaldo; Silva, Wildson Max Barbosa da; Bastos Neto, MoisésThe anaerobic decomposition in landfills produces a gas mixture known as landfill biogas. This biogas consists mainly of CH4 and CO2. The CO2 removal can be carried out by means of adsorption. In order to promote CO2 removal, zeolite type 4A was used as solid adsorbent. The synthesized zeolite was characterized by scanning electron microscopy and X-ray diffraction. CH4/CO2 mixture isotherms were obtained in a m...
Descoloração redutiva de corantes azo e o efeito de mediadores redox na presenç...
Costa, Mayara Carantino; Santos, André Bezerra dos; Mota, Francisco Suetônio Bastos; Mendonça, Glaydson Leandro Farias; Nascimento, Ronaldo Ferreira doREDUCTIVE DECOLOURISATION OF AZO DYES AND THE EFFECT OF REDOX MEDIATORS IN THE PRESENCE OF THE ELECTRON ACCEPTOR SULFATE. We investigated the impact of sulphate and the redox mediator Anthraquinone-2,6-disulfonate (AQDS) on the decolorization of the azo dyes Congo Red (CR) and Reactive Black 5 (RB5). In anaerobic reactors free of extra sulphate dosage, the color removal efficiency decreased drastically when the...
Avaliação da sustentabilidade ambiental do uso de esgoto doméstico tratado na p...
Santos, Emanuel Soares dos; Mota, Francisco Suetônio Bastos; Santos, André Bezerra dos; Monteiro, Cleto Augusto BarattaThis work aimed to evaluate the environmental sustainability of the treated sewage reuse on aquaculture by using the Environmental Sustainability Index of Aquaculture Reuse (ESIAR), Water Quality Index of Aquaculture Reuse (WQIAR) and environmental cost (entropy). For conventional aquaculture, a water quality deterioration of the fish tanks was observed by the environmental cost. When treated sewage was used in...
Qualidade de frutos de melancia produzidos com reúso de água de esgoto doméstic...
Feitosa, Terezinha; Garruti, Deborah dos Santos; Lima, Janice Ribeiro; Mota, Francisco Suetônio Bastos; Bezerra, Francisco Marcus LimaIrregular precipitations and a huge evapotranspiration are characteristics of the Ceará state, which make the water a limiting factor for many activities such as irrigated agriculture. In order to minimize this problem, a strategy that has been investigated as a water source for agriculture purposes, is the reuse treated sewage from stabilization pond systems. The effluents from these systems usually present lo...
Avaliação das modificações nas propriedades de um solo pelo uso de esgoto domés...
Alves, Igor Ramos; Mota, Francisco Suetônio Bastos; Santos, André Bezerra dosThis research aimed to study the possible impacts on soil due to the irrigation of coconut trees with treated wastewater. The study was conducted in a private area, in which the owner has irrigated the area with treated wastewater from a stabilization ponds system for more than 20 years. Samples of soil and irrigation water were collected. The effluent results were analyzed by the physical-chemical parameters: ...
Avaliação do risco de eutrofização em reservatórios da bacia do Acaraú, Ceará, ...
Figueirêdo, Maria Cléa Brito de; Vieira, Vicente de Paulo Pereira Barbosa; Mota, Francisco Suetônio BastosThe eutrophication has compromised the water quality in reservoirs all over the world. In the state of Ceará, Brazil, the reservoirs Araras, Edson Queiroz and Jaibaras, located in the Acaraú waterbasin, presented high nutrient level, during a year of water monitoring, indicating a possible stage of water eutrophication. This work aims to assess the risk of eutrophication in these reservoirs. In order to make th...
Irrigação da atriplex nummularia LINDL (erva-sal) usando-se rejeitos de dessali...
Furtado, Fernando Nobre; Mota, Francisco Suetônio Bastos; Aquino, Marisete Dantas de; Guazzelli, Eleonora SilvaO trabalho teve como objetivo estudar o aproveitamento de dessalinizadores, por osmose reversa, na irrigação da Atriplex nummularia Lindl, conhecida como erva sal e classificada como forrageira. O delineamento foi inteiramente casualizado, com quatro tratamentos e três repetições. Os tratamentos definidos foram: T1, terreno natural, irrigado com o rejeito do dessalinizador; T2, terreno com adubo orgânico, irrig...
Áreas de preservação permanente dos recursos hídricos e a gestão das zonas de r...
Vasconcelos, Francisca Dalila Menezes; Mota, Francisco Suetônio Bastos; Rabelo, Nosliana NobreINTRODUÇÃO Na medida em que as áreas agricultáveis avançavam, impulsionadas pelo desenvolvimento econômico, os ambientalistas se empenhavam na instituição de uma legislação protetora das florestas e dos recursos hídricos. O Código Florestal Brasileiro (CFB), instituído pela Lei nº4771/1965, foi concebido observando as extensas áreas de florestas, no tocante ao severo desmatamento sofrido para aumentar áreas de ...