Septic tank combined with anaerobic filter and conventional UASB: results from full scale plants

Silva, F. J. A. da; Lima, Maria Gorethe Sousa; Mendonça, Luiz Alberto Ribeiro; Gomes, Marcos José Timbó Lima

doi:10.1590/s0104-66322013000100015

Cited by 12 publications

(3 citation statements)

References 22 publications

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“…(3) Coupling a septic tank with an additional unit: This option can also increase the cost as in the case of multiple compartments. Literature indicates that septic tanks have been coupled with Zeolite filter (Anil & Neera, 2016), soil attenuation system (Dubber & Gill, 2014, anaerobic-baffled reactor (Helmy et al, 2018), anaerobic filter (Silva et al, 2013) and engineered wetland (Gomes et al, 2013;Mbuligwe, 2005;Souza et al, 2015;Yousefi et al, 2014), UASB (Al-Jamal & Mahmoud, 2009;Al-Shayah & Mahmoud, 2008;Kujawa-Roeleveld et al, 2005;Mahmoud & Van Lier, 2011;Sabry, 2010). Additional unit would help in improving the quality of the effluent but would entail more in terms of the cost.…”

Section: Adaptable Tailor-made Septic Tanksmentioning

confidence: 99%

Adaptable improved onsite wastewater treatment systems for urban settlements in developing countries

Kihila

Balengayabo

2020

Cogent Environmental Science

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Section: Adaptable Tailor-made Septic Tanksmentioning

confidence: 99%

Adaptable improved onsite wastewater treatment systems for urban settlements in developing countries

Kihila

Balengayabo

2020

Cogent Environmental Science

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“…Estos sistemas son muy utilizados como alternativas descentralizadas para el tratamiento y son muy atractivos debido a algunos aspectos económicos y razones funcionales como bajo costo, fácil instalación, operación y mantenimiento, siendo ampliamente utilizado para cumplir demandas residenciales y de pequeñas aglomeraciones. Este tipo de sistema de tratamiento de aguas residuales se favorece en países tropicales por el predominio de un clima cálido (Silva et al, 2013).…”

Section: Introductionunclassified

Eficiencia de los microorganismos en la estabilización de lodos sépticos en en el distrito Huando 2021

Meza Terbullino

2023

BMSA

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The unprecedented growth of urban populations has placed enormous pressure on the quality of life with regard to housing, water and energy supply, and this is reflected in the deterioration of the quality of water, air and soil. A decrease in environmental quality due to the generation of waste in these urban centers, especially wastewater, is an important and growing concern. For this, improvement processes for these effluents have been proposed and one of them is the use of efficient microorganisms (EM), in the understanding that bacterial metabolism determines the effectiveness of biological treatment of wastewater. A protocol was designed with five treatments with three repetitions, a control or T0 without ME concentration, T1 2.5% ME in the V/V ratio (volume of solute and volume of solvent).; T2 5%; T3 7.5% and T4 10% to determine the effect of these bacteria in septic sludge in the Huando 2021 district. The organoleptic color and odor characteristics were substantially favored with the presence of ME. Likewise, the concentrations of dissolved solids, ammonium, biochemical oxygen demand; and very in particular, a considerable reduction of the colony-forming units of fecal coliforms. These systems are an alternative for wastewater treatment, they are economical, easy to install, operate and maintain, and are widely used to meet residential demands.

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“…in Brazil septic tanks combined with anaerobic filters are commonly used for domestic wastewater treatment [35]), therefore the problems of better solids removal from wastewater or solids dewatering by filtration are noted by many authors. Riddle [30] proposed a device utilising scrolling geo-textile fabric filter.…”

Section: Introductionmentioning

confidence: 99%

Septic Tank Effluent Pretreatment Using Different Filter Materials as a Prevention from Clogging

Nieć

Spychała

Mazurkiewicz

2016

Eng. Prot. Environ.

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Septic tanks are common devices for primary wastewater treatment, however, they are prone to periodically raised effluent solids concentration, which can accelerate the clogging process in specific conditions. The aim of the study was to identify the impact of the secondary filter on the reduction of TS load and possibility to increase the operation time. The study was carried out in two series using six filters. In each series six filters (pipes with filtering material installed on the bottom) were used: three filters with filter mesh and the other three -with non-woven geo-textile. The filters were being filled with wastewater until clogging was achieved (wastewater table in pipes rising up to 50 cm). For the hydraulic conductivity estimation of falling water table tests were performed. Similar values of accumulated TS to dosed TS ratios were observed during the both series for the both filtering material types. The particle size distributions in the both filtering materials were similar. The fact of accumulation of particles of very small dimension (over 73% smaller than 5 µm), much smaller than the filtering material pores diameter might suggest that the process taking place was that of cake filtration. Despite the higher cumulated dry mass of filter cake and inside the filtering layer, the average hydraulic conductivity of non-woven geo-textile was higher than the average hydraulic conductivity of filter mesh. Probably thanks to the higher porosity of geo-textile higher amount of solids can be trapped inside the filtering material itself. The study showed the relatively low ratio of accumulated solids to supplied solids load; however, the accumulated mass seems to be significant for clogging prevention, especially in the case of several filtering layers usage. This way much more solids can be removed from the septic tank effluent (e.g., using four layers -about 10÷20%) and clogging process can be slowed down (two -three years longer operation time).

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Septic tank combined with anaerobic filter and conventional UASB: results from full scale plants

Cited by 12 publications

References 22 publications

Adaptable improved onsite wastewater treatment systems for urban settlements in developing countries

Adaptable improved onsite wastewater treatment systems for urban settlements in developing countries

Eficiencia de los microorganismos en la estabilización de lodos sépticos en en el distrito Huando 2021

Septic Tank Effluent Pretreatment Using Different Filter Materials as a Prevention from Clogging

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