Estimativa Da Produção E Perdas De Metano Em Reator Uasb Da Ete-Ufla Por Meio De Diferentes Modelos Matemáticos

Campos, Lucas Barreto; Matos, Mateus Pimentel de; Siniscalchi, Luciene Alves Batista; Yanagi, Sílvia de Nazaré Monteiro; Lima, Lucas Cardoso

doi:10.22533/at.ed.47920210118

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sewage from universities has characteristics that may differ from the typical composition mentioned for domestic wastewater in cities, due to the possible contribution of laboratories and university hospitals. Campos et al (2020), for example, characterized the raw sewage from WWTP-UFLA and found chemical oxygen demand (COD) concentrations, total solids (TS), volatile solids (VS), total nitrogen Kjeldahl (TNK) and alkalinity of 847, 986, 550, 154 and 528 mg.L -1 , respectively. For comparison purposes, typical values for domestic sewage are, in the same order, 600, 1100, 620, 45 and 200 mg.L -1 , indicating composition with a high presence of ions, therefore reflecting high concentrations of nitrogen and alkalinity, and COD, which could suffer interference from some reduced ions (AQUINO et al, 2006), above what is commonly found.…”

Section: Orthophosphate Removalmentioning

confidence: 99%

Sewage Phosphorus Removal Using Hen Eggshells Through Different Contact Systems

Siqueira¹,

Matos

Ribeiro

et al. 2020

Reveng

Self Cite

View full text Add to dashboard Cite

Hen 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 baffles using calico cloth bags. On the second, the eggshells in the same conditions were attached to vertical wooden rods and distributed at different heights. For both systems, P concentration was daily monitored for four weeks, with and without medium acidification and hydraulic retention time of one day. The baffles system was more efficient, reaching a maximum removal of 15.93% in wastewater with pH 4.73. P removals did not differ significantly over the weeks; however, there is a tendency to vary the efficiencies according to the change in pH. The baffled tank, for presenting higher performance in P removal, is the most suitable for use in a domestic wastewater treatment system.

show abstract

Section: Orthophosphate Removalmentioning

confidence: 99%