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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Tratamento de efluente anaeróbio em lagoas de polimento com alimentação contínua e batelada

Pontes, Tatiana Gomes de 25 February 2016 (has links)
Submitted by Jean Medeiros (jeanletras@uepb.edu.br) on 2016-05-12T12:58:24Z No. of bitstreams: 1 PDF - Tatiana Gomes de Pontes.pdf: 2313753 bytes, checksum: 8db271a02b37c7328dd7cd2c48e554d5 (MD5) / Made available in DSpace on 2016-05-12T12:58:24Z (GMT). No. of bitstreams: 1 PDF - Tatiana Gomes de Pontes.pdf: 2313753 bytes, checksum: 8db271a02b37c7328dd7cd2c48e554d5 (MD5) Previous issue date: 2016-02-25 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / This work represents the post-treatment of effluent reactor UASB in polishing ponds fed with continuous flow and batch investigating different depths, in two experimental phases. In the first phase of work, the experimental system consisted of four polishing ponds in which two were monitored with continuous feed (LC57 and LC45) and two with semi-continuous (LB57 and LB45) and its tributary coming from pond transshipment, both ponds LC57 and LB57 (57 cm deep), for the ponds LC45 and LB45 (45 cm deep) had HDT 12 days. In the second phase of the work experimental consisted of three ponds, which two were fed in single and HDT batch of 8 days (LBT45 and LB245) with its arising tributaries respectively, LT and TE2, and fed continuously with HDT 12 days (LC245), both ponds of the second phase had 45 cm deep. In the first phase, the efficiencies of removals nitrogen overall kjeldahl, nitrogen ammonia and fecal coliforms of pond LC45 were respectively 55%, 71% and 99.3%, higher removals of ponds LC57 (53%, 62% and 99 , 3%), LB57 (39%, 47% and 96.9%) and LB45 (35%, 49% and 97.2%). In the second phase, the ponds with feeding batch and HDT eight days did not differ significantly from the pond with feed continuous and HDT of 12 days, but stood out for the displayed efficiencies, particularly thermotolerant coliforms, in which the pond LBT45 -1 obtained 1E + 03 UFC.100mL meet the WHO requirements for irrigation unrestricted. The ponds fed batch satisfactory results, allowing treat a greater number of tributaries in less time. / Neste trabalho foi avaliado o pós-tratamento do efluente do reator UASB em lagoas de polimento alimentadas com fluxo contínuo e batelada, investigando diferentes profundidades, em duas fases experimentais. Na primeira fase do trabalho, o sistema experimental era constituído de quatro lagoas de polimento, na qual duas foram monitoradas com alimentação contínua (LC57 e LC45) e duas com alimentação semicontínua (LB57 e LB45), sendo seu afluente oriundo da lagoa de transbordo, tanto as lagoas LC57 e LB57 (57 cm de profundidade), quanto às lagoas LC45 e LB45 (45 cm de profundidade) tinham TDH de 12 dias. Na segunda fase o trabalho experimental era constituído por três lagoas, na qual duas eram alimentadas em bateladas e TDH de 8 dias (LBT45 e LB245), com seus afluentes advindos respectivamente, da LT e do TE2, e uma alimentada continuamente com TDH de 12 dias (LC245), ambas as lagoas da segunda fase tinham 45 cm de profundidade. Na primeira fase, as eficiências de remoções de nitrogênio total kjeldahl, nitrogênio amoniacal e coliformes termotolerantes da lagoa LC45 foram, respectivamente de 55%, 71% e 99,3%, superiores as remoções das lagoas LC57 (53%, 62% e 99,3%), LB57 (39%, 47% e 96,9%) e LB45 (35%, 49% e 97,2%). Na segunda fase, as lagoas com alimentação em batelada e TDH de oito dias não diferiram significativamente da lagoa com alimentação contínua e TDH de 12 dias, mas destacaram-se pelas eficiências apresentadas, sobretudo de coliformes termotolerante, no qual a lagoa LBT45 -1 obteve 1E+03 UFC.100mL atendendo as exigências da OMS para irrigação irrestrita. As lagoas alimentadas em batelada obtiveram resultados satisfatórios, permitindo tratar uma quantidade superior de afluentes em menos tempo.

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