Nitrogen transformation in horizontal and vertical flow constructed wetlands applied for dairy cattle wastewater treatment in southern Brazil

Pelissari, Catiane; Sezerino, Pablo Heleno; Decezaro, Samara Terezinha; Wolff, Delmira Beatriz; Bento, Alessandra Pellizzaro; Carvalho, Orlando de; Philippi, Luiz Sérgio

doi:10.1016/j.ecoleng.2014.09.085

Cited by 37 publications

(16 citation statements)

References 5 publications

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“…The CWs had a higher oxygen insertion at the beginning of the experiment, decreasing after the month of January. This variation is related to plant respiration and biofilm development using DO in the decomposition of organic matter (Pelissari et al, 2014). The results of pH and CW in the WTP varied between 8.95 and 6.81, within the range established by CONAMA (Figure 3), and the most alkaline result was recorded in the HCW in the HDT on October 10th, and the most acidic result was recorded in the TCW in the HDT also on October 10 th .…”

Section: Resultssupporting

confidence: 65%

Constructed wetlands as post treatment of a decanter digester followed by an anaerobic filter

et al. 2019

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The amount of wastewater has increased due to the considerable expansion of higher education institutions. When wastewater is released without treatment or with inefficient treatment, it causes significant water pollution. In this context, this study evaluated the performance of Constructed Wetlands as a post-treatment of a decanter digester followed by an anaerobic filter, operated with effluent from the Federal University of Mato Grosso, Cuiabá Campus, Mato Grosso State. Four wetlands were constructed to develop the research: planted with Typha domingensis, planted with Heliconia psittacorum, planted with Pontederia parviflora, and not planted. The following physicochemical parameters were analyzed: Color, Turbidity, pH, Temperature, Total Solids, Total Dissolved Solids (TDS), Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Nitrogen, Sulfate, Nitrate and Nitrite. The results show an organic matter removal efficiency with mean removal results: 70% BOD5 for TCW, HCW and PCW; and COD 76% for PCW. The mean removal of total phosphorus was 78% for PCW and 92% NO-2, as macronutrients. Analysis of variance ANOVA shows significance in the results of TDS, SO4 and COD removal.

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Section: Resultssupporting

confidence: 65%

Constructed wetlands as post treatment of a decanter digester followed by an anaerobic filter

et al. 2019

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“…TKN was observed to reduce by 89.87% in the effluent from grit removal chamber and 91.44% in effluent from the primary sedimentation tank. Pelissari et al (2014) opined that nitrogen removal in CW is achieved through uptake by macrophytes, bacterial biomass and adsorption to the filter medium. This shows V. zizanioides is efficient in nitrogen removal in wastewater (Cull et al 2000;Truong et al 1998).…”

Section: Nutrients Removalmentioning

confidence: 99%

Municipal wastewater management using Vetiveria zizanioides planted in vertical flow constructed wetland

2018

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This study investigated wastewater management using Vetiveria zizanioides planted in vertical flow constructed wetland (VFCW). Wastewater from the grit removal chamber and the primary sedimentation tank of Daspoort Wastewater Treatment Works was fed into six-pilot VFCW consisting of 1000-L plastic tanks having 500-mm-deep, 10-15-mm-diameter granite substrate planted with V. zizanioides. Irrigation of macrophytes using effluent from the grit removal chamber and primary sedimentation tanks was done after 3 months of planting and the VFCW monitored. Wastewater samples were collected and analysed using standard procedures. The pollution parameters of the initial sample were total alkalinity 297 ± 27.3 mg/L; COD 627 ± 149.0 mg/L; EC 82.53 ± 5.4 ms/m; free and saline ammonia 36.02 ± 4.1 mg/L, nitrate/nitrite 0.09 ± 0.1 mg/L; pH 7.66 ± 0.4; phosphate 3.07 ± 0.3 mg/L, sulphate 44.57 ± 3.1 mg/L; TDS 551 ± 37.8; TSS 319 ± 34.2 mg/L; and TKN 41 ± 6 mg/L. Percentage removal of 89.57, 98.34% TSS; 98.95, 98.62 free and saline ammonia; 89.87, 91.44% TKN; and 80.65, 58.02% COD for screen and settled wastewater, respectively, was obtained from the VFCW. VFCW using locally available V. zizanioides is a viable alternative for municipal wastewater treatment.

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“…A extração de NTK pelos SACs encontrada pelos autores pode ser considerada inferior aos estudos anteriormente citados em função da capacidade extratora do nutriente pela vegetação utilizada na pesquisa. Pelissari et al (2014) tratando águas residuais geradas em instalações de gado de leite por SACs cultivados com Typha domingensis, usando como substrato areia de granulometria 0,33 mm aplicando cargas de NTK entre 10,3 g m -2 semana -1 e 21,6 g m -2 semana -1 , obtiveram uma remoção de 59% de NT e 58% de amônia e 23% de NT e 80% de amônia, respectivamente. No estudo os autores reportaram a remoção da carga de nutrientes pelas vegetações entre 5,1% e 0,88% quando foram aplicadas as taxas de carregamento de NTK de 10,3 e 21,6 g m -2 semana -1 , respectivamente, indicando que as vegetações extraem de forma mais eficiente compostos nitrogenados a menores taxas de aplicação do elemento.…”

Section: Remoção De Carga De Ntk E P-totalunclassified

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

Mendonça¹,

Ribeiro²,

Nogueira³

2017

Rev. Ciênc. Agr.

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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.

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Nitrogen transformation in horizontal and vertical flow constructed wetlands applied for dairy cattle wastewater treatment in southern Brazil

Cited by 37 publications

References 5 publications

Constructed wetlands as post treatment of a decanter digester followed by an anaerobic filter

Constructed wetlands as post treatment of a decanter digester followed by an anaerobic filter

Municipal wastewater management using Vetiveria zizanioides planted in vertical flow constructed wetland

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

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