Optimization of atmospheric carbonation in the integrated treatment immediate one-step lime precipitation and atmospheric carbonation. The case study of slaughterhouse effluents

Madeira, Luís M.; Carvalho, Fátima; Almeida, Adelaide; Teixeira, Margarida Ribau

doi:10.1016/j.rineng.2022.100807

Cited by 7 publications

(2 citation statements)

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“…Insignificant concentrations of nitrate (<2 mg N L −1 ) and low concentrations of ammonium nitrogen (c.a. 12 to 22 mg N L −1 ) have also been reported in SWW treated by the IOSLM/AC process [10,11], but to the best of our knowledge, the potential of these waters for plant production has never been studied. Thus, to fill the gaps mentioned, this work aims to evaluate the growth of two species of mint plant using treated SWW from the IOSLM/AC process.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, a low-cost and easy-to-apply pretreatment process composed of immediate one-step lime precipitation (IOSLM) and atmospheric carbonation (AC) has been developed to treat SWW [9]. High removals of organic matter, suspended solids, oils and fats, and nutrients were obtained, and the sludge obtained has potential recovery as a coagulant aid [10,11]. However, to the best of our knowledge, no reuse solutions were developed for the treated SWW.…”

Section: Introductionmentioning

confidence: 99%

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Reuse of Treated Slaughterhouse Wastewater from Immediate One-Step Lime Precipitation and Atmospheric Carbonation to Produce Aromatic Plants in Hydroponics

Madeira,

Ribau Teixeira,

Nunes

et al. 2024

Water

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The transition from the linear economy paradigm to the circular economy in industrial wastewater treatment is on the global agenda. The search for new simple, eco-innovative and low-cost processes for treating industrial wastewater, which can also be used by small- and medium-sized industries, has been a constant challenge to ensure environmental sustainability in all types of industries. The present work aimed to evaluate the suitability of the treated slaughterhouse wastewater (SWW) obtained by the integrated process composed of immediate one-step lime precipitation (IOSLM) and atmospheric carbonation (AC) for the production of aromatic plants by hydroponics. Results showed a significant increase in plant height of 177 and 147% and root length of 64 and 37% for Pennyroyal and Chocolate Peppermint plants, respectively, after 26 days. No signs of toxicity or symptoms of micronutrient deficiency were detected in aromatic plants.

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Section: Introductionmentioning

confidence: 99%