14 documents found, page 1 of 2
SEWAGE PHOSPHORUS REMOVAL USING HEN EGGSHELLS THROUGH DIFFERENT CONTACT SYSTEMS
Siqueira, Juliano Curi de; Matos, Mateus Pimentel de; Ribeiro, Ivan Célio Andrade; Fia, Ronaldo; Matos, Antonio Teixeira deHen eggshell is a waste with high phosphorus (P) removal capacity from synthetic solutions. However, there is a lack of knowledge about how to use this material on P removal from real wastewater. The present study proposed to evaluate two types of system for P removal from wastewater using eggshells. On the first system, eggshells grinded, sieved in 0.425 mm, and contained in coffee filters, were fixed to baffl...
Modelagem da progressão da DBO obtida na incubação de esgoto doméstico sob dife...
Matos, Mateus Pimentel de; Borges, Alisson Carraro; Matos, Antonio Teixeira de; Silva, Edson Faria da; Martinez, Mauro AparecidoConfiável quantificação da demanda bioquímica de oxigênio exercida (DBO exercida) poderá ser obtida com incubação das amostras sob temperaturas diferentes, desde que o valor da demanda bioquímica de oxigênio última (DBOU) não seja alterado nessas condições. Alguns autores têm relatado aumento no valor da DBOU com a elevação da temperatura de incubação das amostras, o que pode ser decorrente da ocorrência da nit...
The influence of plant roots on the clogging process and the extractive capacit...
Teixeira, Denis Leocádio; Matos, Antonio Teixeira de; Matos, Mateus Pimentel de; Vieira, Delilah Pires; Araújo, Edcássio Dias; Ferraz, Liliane AparecidaThe root system of plants grown in horizontal subsurface flow constructed wetlands (HSSF CWs), although it favors the removal of nutrients/pollutants from the wastewater under treatment, can contribute to the clogging of these systems. The objective of this work was therefore to evaluate the influence of Vetiver and Tifton 85 grass roots on the process of clogging and extraction of nutrients/pollutants in HSSF ...
Influence factors in the adjustment of parameters of the modified first-order k...
Matos, Antonio Teixeira de; Matos, Mateus Pimentel de; Costa, Renan de Almeida; Sperling, Marcos vonThe aim of the present work was to evaluate the relationship between the hydraulic retention time power parameter (n) of the modified first-order kinetic mathematical model (MFOKM) with the hydraulic dispersion number (d) and the organic matter degradability, obtained from the ratio of chemical and biochemical oxygen demands (COD/BOD) along the length of horizontal subsurface flow constructed wetlands (HSSF-CWs...
Evaluation of the effects of drainage and different rest periods as techniques ...
Teixeira, Denis Leocádio; Leocádio, Denis; Matos, Mateus Pimentel de; Miranda, Suymara Toledo; Vieira, Delilah PiresThe development of easy-to-perform techniques for unclogging of horizontal subsurface flow constructed wetlands (HSSF-CW) is essential to make them operationally simpler and increase their useful life. The objective of this work was to evaluate the drainable porosity, the extension of the bed presenting surface runoff and the characterization and quantification of the constituent solids clogging the porous medi...
Mineralização do carbono e nitrogênio de resíduos aplicados ao solo em campo
Matos, Antonio Teixeira de; Paula, José Roberto de; Matos, Mateus Pimentel de; Pereira, Magno dos Santos; Andrade, Cristiano Alberto deA definição das doses de aplicação de resíduos orgânicos de origens agrícola, urbana ou industrial, com vistas a seu aproveitamento agrícola, deve estar fundamentada na taxa de sua mineralização no solo. Neste trabalho, os objetivos foram utilizar e analisar diferentes métodos de estimativa das frações mineralizadas dos estercos de bovinos, suínos e galinhas, bem como do lodo de esgoto e do composto de lixo urb...
Efeito do binômio tempo-temperatura de incubação da amostra na demanda bioquími...
Matos, Mateus Pimentel deConselho Nacional de Desenvolvimento Científico e Tecnológico; Pesquisas sobre o efeito do tempo e da temperatura de incubação de amostras líquidas, na estimativa da matéria orgânica biodegradável contida nestas, atualmente são raras, tendo em vista que têm sido aceitos, como padrão, os resultados apresentados nos trabalhos clássicos de Streeter e Phelps e de Theriault, divulgados em 1925 e 1927, respectivament...
EFFECT OF THE MASS AND FORM OF SEED PROCESSING ON THE COAGULANT POWER OF MORING...
Matos, Mateus Pimentel de; Matos, Antonio Teixeira de; Silva, Edson Faria da; Eustáquio Júnior, ValdeirLittle is known regarding the influence of quality and form of seed processing on the coagulation power of the Moringa seed extract. Thus, this work sought to evaluate the coagulant and xenobiotic power of seeds according to the mass range and its form of processing (shelled or unshelled seeds). For this, surface water with high turbidity, collected in from a reservoir was analyzed. To the samples extracts prep...
COLIFORM BACTERIA DECAY IN PLANTED AND NON-PLANTED SOIL - DOI: 10.13083/1414-39...
Pereira, Magno dos Santos; Matos, Antonio Teixeira de; Matos, Mateus Pimentel de; Aguiar, Pedro Lopes deFertigation is an alternative for the disposal/treatment of wastewater and provides the great advantage of potential application in agricultural use due to its contained nutrients. However, this practice can bring health risks, especially when using domestic sewage that has not undergone tertiary treatment. Factors such as temperature, UV rays, predation and competition can cause a great decay of exogenous micr...
TECHNICAL NOTE: SEWAGE TREATMENT IN AN ORGANIC FILTER FOLLOWED BY COAGULATION W...
Matos, Mateus Pimentel de; Matos, Antonio Teixeira de; Batista, Ana Paula da Silva; Ribeiro, Ivan Célio Andrade; Silva, Edson Faria daSeveral studies showed effective turbidity removal from water when using moringa seed extract (Moringa oleifera) as a coagulating agent. In the treatment of sewage, a major inconvenience of using this natural coagulant is the application of large quantities of the seed. One alternative for reducing the amount of seeds needed to prepare the coagulant extract is primary treatment of sewage in organic filters, thu...