Materiais alternativos como meio suporte de filtros anaeróbios para tratamento de esgoto sanitário sintético

Baettker, Ellen Caroline; Carvalho, Karina Querne de; Freire, Flavio Bentes; Passig, Fernando Hermes; Morais, Josmaria Lopes de

doi:10.1590/s1413-41522018170758

Cited by 5 publications

(4 citation statements)

References 29 publications

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“…Therefore, before being applied in agriculture, sanitary sewage must be treated. However, studies prove minimal contaminants in sanitary sewage after treatment (BAETTKER et al, 2021;FRANÇA et al, 2021). However, research shows that this minimal load of contaminants has not harmed the performance of agricultural crops (AL-SUHAIBANI et al, 2021;KHAN et al, 2022;RAGONEZI et al, 2022;SOUZA et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

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Superabsorbent Polymers and Sanitary Sewage Change Water Availability During the Cowpea Emergence Phase

Araújo,

Assis,

Guimarães

et al. 2024

NAT

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Superabsorbent polymers (SAP) enhance water retention and facilitate seed emergence, though studies predominantly use high-quality water, neglecting SAP performance with alternative sources like sanitary sewage. Addressing the imperative to reduce fresh water demand, especially in water-scarce regions, SAP and sanitary sewage emerge as potential agricultural alternatives, partially fulfilling crop water and nutritional needs. This study assessed the impact of SAP and synthetic sanitary sewage (SSS) on substrate attributes and cowpea emergence in a randomized factorial design (8 x 2), incorporating varying SAP doses (0–0.14%) and hydration sources (SSS and distilled water). Cowpea was cultivated in polystyrene trays under controlled conditions. While SAP and SSS augmented water retention, total dissolved solids, pH, and electrical conductivity (ECse) also increased. Increased ECse negatively affected cowpea germination, emergence speed index (ESI), and time to 50% emergence. In conclusion, applying SAP near cowpea seeds impeded emergence, warranting the exploration of alternative strategies. Despite the rise in ECse, SSS demonstrated benefits for germination, establishing itself as a viable water source for cowpea emergence. This study underscores the necessity for further research into SAP applications and recognizes synthetic sanitary sewage as a promising, water-conserving source for sustainable cowpea growth. Keywords: available water; germination; hydrogel; sowing; wastewater. Polímeros superabsorventes e esgoto sanitário alteram a disponibilidade hídrica na fase de emergência do feijão-caupi RESUMO: Os polímeros superabsorventes (SAP) aumentam a retenção hídrica e emergência das sementes, embora estudos utilizem predominantemente água de boa qualidade, negligenciando o desempenho do SAP com fontes alternativas como o esgoto sanitário. Respondendo ao imperativo de reduzir o consumo de água doce, especialmente em regiões com escassez hídrica, SAP e esgoto sanitário surgem como potenciais alternativas agrícolas. Neste estudo avaliou-se SAP e esgoto sanitário sintético (SSS) nos atributos do substrato e na emergência do feijão-caupi em delineamento fatorial casualizado (8x2), incorporando diferentes doses de SAP (0–0,14%) e fontes hídricas (SSS e água destilada). Cultivou-se feijão-caupi em bandejas de poliestireno sob condições controladas. SAP e SSS aumentaram a retenção hídrica, total de sólidos dissolvidos, pH e condutividade elétrica (ECse). O aumento da ECse reduziu a germinação do feijão-caupi, velocidade de emergência e tempo para emergência de 50% das sementes. Conclui-se que o SAP aplicado próximo das sementes prejudica a emergência do feijão-caupi, justificando a exploração de estratégias alternativas. SSS demonstrou benefícios para a germinação, estabelecendo-se como fonte hídrica viável para emergência do feijão-caupi. Este estudo destaca a necessidade de maiores investigações sobre aplicações de SAP e reconhece SSS como fonte hídrica para o crescimento sustentável do feijão-caupi. Palavras-chave: água disponível; germinação; hidrogel; semeadura; águas residuárias.

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Section: Introductionmentioning

confidence: 99%

“…Thus, an alternative is to work with synthetic sanitary sewage (SSS), which has the advantage of not contaminating the environment and has the same concentrations of its constituents over time. SSS has been used in different studies to replace natural sewage (BAETTKER et al, 2021;MANDEL et al, 2019;.…”

Section: Introductionmentioning

confidence: 99%

Superabsorbent Polymers and Sanitary Sewage Change Water Availability During the Cowpea Emergence Phase

Araújo,

Assis,

Guimarães

et al. 2024

NAT

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“…There are several technologies that can be used for the treatment of DW for reuse in vegetable irrigation [11], such as: anaerobic filters (ANF), aerobic filters (AEF), septic tanks (ST), constructed wetlands (CWs), filter membranes, chlorination, sand filter, UV disinfection, among others. ST is the simplest and oldest low-cost system widely used as decentralized treatment technology, but, post-treatment is usually required because of the high soluble organic matter and pathogens content that remains in the effluent [12].…”

Section: Introductionmentioning

confidence: 99%

Anaerobic Filters: Alternative Solution for the Treatment of Domestic Wastewater for Reuse in Vegetable Irrigation

Pitoro¹,

Sanchéz-Román²,

Queluz³

et al. 2023

Irrigation and Drainage - Recent Advances

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This chapter is the result of a research conducted in the experimental area of the Department of Rural Engineering, School of Agronomic Sciences, São Paulo State University, Botucatu, São Paulo, Brazil, for 165 days, between the months of February and August 2018, with the objective to evaluate the performance of a wastewater treatment plant (WWTP) at a pilot-scale composed of six anaerobic filters (tank-in-series), filled with gravel #1 in the treatment of domestic wastewater (DW) for agricultural reuse. The parameters were monitored was: pH, electrical conductivity, total suspended solids, biochemical oxygen demand, chemical oxygen demand, total nitrogen, total phosphorus, and potassium. The results indicate that the WWTP performed satisfactorily and provided treated wastewater (TWW) with acceptable quality for agricultural reuse in irrigation of vegetable crops. It was observed that the mean concentrations of the pollutants decreased as wastewater advanced through the filters stage, presenting high removal efficiency at the 6th filter (TWW 6) than the 3rd filter (TWW 3), with statistical analysis corroborating that there are significant differences between the quality of TWW 3 and TWW 6 for most of the parameters evaluated, suggesting that the increase of the number of filters in this treatment system proposed improves the treated wastewater quality.

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“…In this sense, research has been carried out using waste from other production processes as support media for anaerobic filters, such as construction tailings (CAMPOS; PETTER; KAUTZMANN, 2008;BAETTKER et al, 2018), bamboo rings (OZA et al, 2019TONETTI et al, 2011), blast furnace slag (FIA et al, 2010), vegetable loofah (FERNANDES et al, 2015), tire pieces (BAETTKER et al, 2018), and coconut shells (TONON et al, 2015), among others. Among the waste generated in high quantities in the state of Espírito Santo, waste from the ceramic industry (WCI) stands out.…”

Section: Introductionmentioning

confidence: 99%

Use of anaerobic filters filled with waste from the ceramics industry in swine wastewater treatment

et al. 2023

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Research on the use of anaerobic filters as an alternative material to gravel is fundamental, especially if they are low cost and highly efficient in the treatment of swine wastewater (SWW). This study aimed to evaluate the efficiency of anaerobic filters filled with waste from the ceramic industry (WCI) as an alternative material to gravel in swine wastewater treatment. The experimental set-up consisted of three anaerobic polyvinyl chloride filters filled with WCI. A randomized block experimental design was used, with four treatments (evaluations of effects at 30, 60, 90, and 120 days) and three blocks, in a scheme of repeated measures over time. The univariate procedure was employed, and we sought to evaluate only the profile of the change in each response variable, between each evaluation time point. The anaerobic filter filled with WCI is a promising option in the treatment of swine effluents from small farms, presenting over 120 days of operation and average removals of 20%–50% of the color, 40%–70% of total solids, 45%– 75% of turbidity, 45%–55% of total nitrogen, and 33%–45% of total phosphorus.

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Materiais alternativos como meio suporte de filtros anaeróbios para tratamento de esgoto sanitário sintético

Cited by 5 publications

References 29 publications

Superabsorbent Polymers and Sanitary Sewage Change Water Availability During the Cowpea Emergence Phase

Superabsorbent Polymers and Sanitary Sewage Change Water Availability During the Cowpea Emergence Phase

Anaerobic Filters: Alternative Solution for the Treatment of Domestic Wastewater for Reuse in Vegetable Irrigation

Use of anaerobic filters filled with waste from the ceramics industry in swine wastewater treatment

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