Fertirrigation with nanofiltration retentate from thermomechanical pulp mill effluents

Caldeira, Daiane Cristina Diniz; Silva, Cláudio; Zanuncio, Antônio José Vinha; Filho, José Roberto Rosado Corrêa

doi:10.1016/j.indcrop.2023.116713

Cited by 2 publications

(1 citation statement)

References 22 publications

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“…To this end, chlorination is proposed (the intervention most commonly used) for reuse in urban environments [36,47,48]. For agricultural reuse, care must be taken with residual concentrations, as the presence of chlorine in irrigation water is responsible for contamination of the soil, causing toxicity mainly in the leaves of irrigated crops [49,50].…”

Section: The Challenge Of Eliminating Pathogenic Microorganismsmentioning

confidence: 99%

The Use of Constructed Wetlands to Treat Effluents for Water Reuse

de Campos,

Soto

2024

Environments

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Constructed wetland systems (CWs) are technologies based on natural processes for pollutant removal and have been more and more accepted in the treatment of domestic and industrial wastewater. This study selected and reviewed articles published in the last six years involving the use of different CW conceptions and their association with other technologies to treat different effluents and evaluated the quality of the effluents for reuse. From a total of 81 articles reviewed, 41 presented quantitative data on the quality of the treated effluent in relation to the requirements of the reuse regulations in different countries of the world. CWs can be used to treat gray water and runoff water, as well as domestic and industrial effluents with the purpose of reusing them. While studies on the removal of new chemical and biological substances have increased, challenges are associated with the optimization of CWs to improve the removal of pathogens and new contaminants that have appeared more recently. The potential for the improved removal of those pollutants lies in the association of CWs with conventional and advanced technologies in new configurations. We concluded that studies related to the reuse of effluents using CWs are in constant evolution, with experiments at different scales. The perspectives are promising since CWs are an economic, environmentally friendly, and efficient technology to help in the mitigation of water scarcity problems imposed by climate changes.

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Section: The Challenge Of Eliminating Pathogenic Microorganismsmentioning

confidence: 99%

The Use of Constructed Wetlands to Treat Effluents for Water Reuse

de Campos,

Soto

2024

Environments

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Aspen Plus simulation for effluent reuse in thermomechanical pulp mills

Caldeira

Silva

Rodrigues

et al. 2023

Water Science &Amp; Technology

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The objective of this study was to evaluate the closing of the water circuit and reusing the treated effluent in the production of TMP, using simulations performed with the Aspen Plus®. The treated effluent was reused to replace 50, 75 and 100% of the well water. An adaptation of the Aspen Plus® program simulating the TMP production process and a dynamic simulation test to verify the accumulation of non-process elements (NPEs) in industrial processes at different proportions of reuse were evaluated. The quality of the final product was assessed in laboratory bleaching tests for pulp brightness and brightness reversion. The concentrations of the NPE were 0.00097, 0.00122 and 0.00145 kmol/h for Mn2+, 0.012929, 0.018368 and 0.023595 kmol/h for Fe3+ and 0.000542, 0.000722 and 0.000948 kmol/h for Cu2+, with the recycling of the treated effluent of 50, 75 and 100%, respectively. The brightness and brightness reversion of the pulp were similar with the different proportions of effluent reuse and with the use of fresh industrial water, with values ranging from 83.37 to 83.97% ISO and 5.43 to 6.38 ISO units, respectively. The use of treated effluent did not affect the pulp quality, which could diminish the water use in a pulp mill.

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Fertirrigation with nanofiltration retentate from thermomechanical pulp mill effluents

Cited by 2 publications

References 22 publications

The Use of Constructed Wetlands to Treat Effluents for Water Reuse

The Use of Constructed Wetlands to Treat Effluents for Water Reuse

Aspen Plus simulation for effluent reuse in thermomechanical pulp mills

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