ABSTRACT
Sewage sludge (SS) is widely used in agriculture in several countries around the world. However, the impact of successive applications of SS on soil and the risks of nutrient leaching are often neglected. In this study, corn was grown on a constructed wetland for four crop cycles (two years), in which the wetland was subjected to successive SS applications. The objective of this study was to evaluate how the successive applications of SS affect the availability and leaching of nutrients in the soil profile, after two years of cultivation. Experiments were performed using a randomized block design with repeated measurements in time, that is, soil was sampled in each harvest. Six treatments were tested: four fertilizations based on sewage sludge, resulting from biological and anaerobic treatment, calculated to provide 25 (SS25), 50 (SS50), 75 (SS75), and 100% (SS100), of the N required for corn production (140 kg ha-1); a mineral fertilization (NPK) (140 kg ha-1 N, 70 kg ha-1 of P2O5 and 40 kg ha-1 of K2O) and a control (without fertilization). The results showed that four consecutive applications of SS100 for two years caused significant accumulation of nutrients and organic matter in the superficial layers of the soil. The electrical conductivity and the concentration of NO3- in the soil solution were higher than those permitted by Brazilian legislation. The adoption of domestic SS in Brazilian agriculture can be a viable alternative in the search for an environment-friendly and economically feasible method for SS disposal.
Subject(s)
Sewage , Soil Pollutants , Agriculture , Brazil , Fertilizers , Recycling , SoilABSTRACT
Objetivo - Traçar um perfil epidemiológico do paciente em atendimento fisioterapêutico em Home Care no Estado de São Paulo. Métodos - Para realização deste trabalho foi realizado levantamento de dados através de análise de prontuários dos pacientes em atendimento de fisioterapia domiciliar no Estado de São Paulo no ano de 2010. Resultados - A amostra foi composta de 412 pacientes, variando a faixa etária entre 1 a 98 anos, a procura pelo serviço de fisioterapia domiciliar é ocasionada principalmente pelas patologias crônicas, sendo que os indivíduos que mais utilizam este tipo de serviço se concentram na faixa etária de 61 a 90 anos, na sua grande maioria composta por mulheres e que o principal objetivo da fisioterapia domiciliar é a reabilitação motora realizados em indivíduos com sequela do AVE, doença que mais acomete os pacientes que se utilizam deste tipo de atendimento. A maior parte dos pacientes atendidos obtiveram uma melhora considerável em um período de tratamento curto demonstrando a eficácia da fisioterapia domiciliar. Conclusão - Com este estudo conclui-se que as principais patologias que requer este tipo de tratamento são as patologias crônicas, em uma faixa etária média de 75 anos, cuja a população se beneficia com o tratamento fisioterapêutico em abordagens precoces.
Objective - To outline an epidemiological profile of the patient in physical therapy in Home Care in the State of São Paulo. Methods - For this study, data collection was conducted through analysis of medical records of patients in home care physical therapy in the State of São Paulo in 2010. Results - The sample consisted of 412 patients, ranging in age from 01 to 98 years, the demand for domiciliary physiotherapy service is mainly caused by chronic diseases, and most individuals who use this type of service are concentrated in the age group 61 to 90 years, mostly composed of women and that the main aim of physiotherapy is the home made motor rehabilitation in patients with sequelae of stroke, a disease that affects most patients who use this type of care. Most patients treated had a considerable improvement in a short period of treatment, demonstrating the effectiveness of physiotherapy at home. Conclusion - This study concludes that the main pathologies that require this type of treatment are chronic diseases, in a mean age of 75 years, whose population benefits from physical therapy treatment approaches in early.
