Sistemas Alagados Construídos em Batelada: remoção de Demanda Bioquímica de Oxigênio e regulação de pH no tratamento de efluentes de laticínios

Mendonça, Henrique Vieira de; Ribeiro, Celso Bandeira de Melo; Borges, Alisson Carraro; Bastos, Ronaldo Rocha

doi:10.4136/ambi-agua.1511

Cited by 17 publications

(11 citation statements)

References 9 publications

(14 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…On the other hand, vertical flow constructed wetland (VFCW) systems provide good conditions for nitrification, but denitrification does not occur in these systems. Thus, hybrid or combined systems, in which the advantages of each system type are combined, have been studied, allowing producing waste water with a reduced organic load and lower nitrogen concentrations (Mendonça et al, 2015;Fia et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Nutrient Removal From Swine Wastewater in a Combined Vertical and Horizontal Flow Constructed Wetland System

Boas

Fia

et al. 2018

Eng. Agríc.

View full text Add to dashboard Cite

This study aimed to assess the performance of a combined vertical flow (VFCW) and horizontal subsurface-flow (HFCW) constructed wetland systems built on a pilot scale and submitted to different configurations and organic load application rates of pre-treated swine wastewater (SWW) in anaerobic systems on the nitrogen and phosphorus removal.The average values of redox potential in the systems were between anoxic and aerobic conditions, favoring an increased nitrate concentration in VFCW. Nitrogen removal by VFCW-HFCW system can be considered as satisfactory, reaching removal values of 75%. VFCW and HFCW proved to be limited in phosphorus removal, reaching values of 48%.

show abstract

Section: Introductionmentioning

confidence: 99%

Nutrient Removal From Swine Wastewater in a Combined Vertical and Horizontal Flow Constructed Wetland System

Boas

Fia

et al. 2018

Eng. Agríc.

View full text Add to dashboard Cite

show abstract

“…O mesmo comportamento estatístico foi verificado por Mendonça et al (2015) e Matos et al (2012) ao se tratar a ARL em SACs, indicando que as vegetações cultivadas não influenciam na remoção destes parâmetros.…”

Section: Remoção De Carga De Dbo E Dqounclassified

“…Considerando o potencial poluidor deste tipo de agroindústria, os efluentes líquidos gerados nos mais diversos setores de produção são considerados os principais responsáveis pela poluição (Mendonça et al, 2015). Segundo o mesmo autor, um laticínio que processa 10 m³ de leite por dia gera um volume três vezes maior de efluentes, 30 m³, considerando um valor de 2.000 mg L -1 de DBO na água residual, a agroindustria possuirá um equivalente populacional de aproximadamente 1.111 pessoas, considerando que cada habitante produza 54 g DBO dia -1 , ficando evidente a necessidade prévia do tratamento da ARL antes de sua disposição em cursos de água.…”

Section: Introductionunclassified

Remoção de matéria orgânica e nutrientes de águas residuais de laticínios em sistemas alagados construídos

Mendonça¹,

Ribeiro²,

Nogueira³

2017

Rev. Ciênc. Agr.

View full text Add to dashboard Cite

Este trabalho teve como objetivo avaliar a eficácia de sistemas alagados construídos no tratamento de águas residuais da agroindústria de laticínios. Os sistemas foram submetidos a diferentes taxas de carregamento orgânico e nutrientes a um tempo de detenção hidráulica de 3,5 dias aplicando um caudal de 7,5 L dia -1 . Foram implantadas seis unidades experimentais por meio de tanques de polietileno com volume útil de 75 L, usando como meios suportes brita n. 0 em três dos sistemas e brita n. 0 e areia em outros três, na proporção de 80% brita e 20% areia. Quatro unidades foram cultivadas e duas mantidas como testemunhas. As espécies selecionadas para cultivo foram as macrófitas Typha domingensis e o Hedychium coronarium. As eficiências médias na remoção de nitrogênio e fósforo ficaram entre 42 e 50% e 39 a 43%, respectivamente, nos leitos vegetados e entre 28 a 30% e 16 a 19% nos leitos não vegetados, havendo diferenças significativas entre leitos cultivados e testemunhas (p < 0,05). Em termos de remoção de DBO e DQO não houve diferenças significativas (p>0,05) entre os sistemas, apresentando estes eficácias médias de remoção 89 a 91% para DBO e 82 a 86% para DQO.Palavras-chave: agroindústria de laticínios, água residual, macrófitas. A B S T R A C TThis work had as objective to evaluate the effectiveness of constructed wetlands systems in wastewater treatment of agribusiness of dairy products. The systems were submitted rates of organic load and nutrients to hydraulic detention time 3.5 days by applying a flow of 7.5 L day -1 . Were implanted six experimental units by means of polyethylene tank with a net volume of 75 L, using as means crushed stone no. 0 in the three of the systems and crushed stone no. 0 and sand in the other three, in the proportion of 80% and 20% sand. Four units were cultivated and two maintained as witnesses. The species selected for cultivation were the macrophytes Typha domingensis and Hedychium coronarium. The efficiencies sized in the nitrogen and phosphorus were between 42 to 50%, and 39 to 43%, respectively, in beds vegetated and 28 to 30% and 16 to 19% in the beds not vegetated, and there are significant differences between beds cultivated and witnesses (p<0.05). In terms of the removal of DBO and DQO there were no significant differences (p>0.05), between the systems, presenting these efficacies averages of removing 89 to 91% for DBO and 82 to 86% for DQO.

show abstract

“…The Constructed Wetlands Systems (CWS) can be a promising technical alternative, since it is a simple, low cost and easy operation and maintenance technology for the treatment of a wide variety of wastewater, such as domestic (Avelar et al, 2015), of dairy products Mendonça et al, 2015), of swine farming (Sarmento et al, 2012;Fia et al, 2015), of textile industry (Saeed & Sun, 2013) and drugs industry (Zhang et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Influence of Substrate and Species Arrangement of Cultivated Grasses on the Efficiency of Horizontal Subsurface Flow Constructed Wetlands

Saraiva

Matos

et al. 2018

Eng. Agríc.

View full text Add to dashboard Cite

We aimed to evaluate the efficiency of six different horizontal subsurface flow constructed wetlands (HSSF-CWs), with different substrates (gravel and crushed PET bottles), which also varied in relation to the presence and arrangement of plant species (elephant grass and Tifton 85 bermudagrass) in the removal of pollutants from a bulk milk cooling tank (MTWW). Each bed was fed at a flow rate of 0.18 m 3 d -1 and average organic load rate (OLR) of 318 kg ha -1 d -1 of BOD5, with hydraulic detention time (HRT) of 1.84 days in the gravel-filled HSSF-CWs (CWS-G) and 2.97 days in the PET-filled HSSF-CWs (CWs-P). The CWs-P were as efficient as the CWs-G in the removal of BOD5, COD, Total-P, and K-Total, being in some cases even more effective (turbidity, TS, TSS and Na). The gravel, on the other hand, provided greater removals of Total-N from the MTWW. In the non-cultivated CWs and those cultivated with elephant grass, in its first half and Tifton 85 grass in its second half, there were higher average efficiencies in COD and TSS removal sand, in the latter, the highest average removal of Total-N.

show abstract

Sistemas Alagados Construídos em Batelada: remoção de Demanda Bioquímica de Oxigênio e regulação de pH no tratamento de efluentes de laticínios

Cited by 17 publications

References 9 publications

Nutrient Removal From Swine Wastewater in a Combined Vertical and Horizontal Flow Constructed Wetland System

Nutrient Removal From Swine Wastewater in a Combined Vertical and Horizontal Flow Constructed Wetland System

Remoção de matéria orgânica e nutrientes de águas residuais de laticínios em sistemas alagados construídos

Influence of Substrate and Species Arrangement of Cultivated Grasses on the Efficiency of Horizontal Subsurface Flow Constructed Wetlands

Contact Info

Product

Resources

About