Results 21 to 30 of about 525 (134)

Synthesising tannin-based coagulants for water and wastewater application: A review [PDF]

, 2021
Coagulation-flocculation has been applied widely in water and wastewater treatment. Tannin, a natural watersoluble polyphenol that is present in most vegetable cells, has been widely accepted and applied as a plant-based coagulant.
Abu Zahrim, Yaser, Azreen, Ibrahim, Junidah, Lamaming   +2 more
core   +1 more source

The use of natural organic flocculants for harvesting microalgae grown in municipal wastewater at different culture densities

Physiologia Plantarum, Volume 173, Issue 2, Page 536-542, October 2021., 2021
Abstract Harvesting microalgae from liquid culture is a difficult issue to solve and is most commonly done through settling. However, settling is a slow process on its own and generally needs to be induced chemically or by introducing stress to the culture.
Calle Niemi, Francesco G. Gentili
wiley   +1 more source

Microalgae harvesting for wastewater treatment and resources recovery: a review [PDF]

, 2023
Microalgae-based wastewater treatment has been conceived to obtain reclaimed water and produce microalgal biomass for bio-based products and biofuels generation.
Carvalho Fontes Sampaio, Igor, Ferrer Martí, Ivet, García Serrano, Joan, González Flo, Eva, Morais, Etiele Greque de, Uggetti, Enrica   +5 more
core   +1 more source

Sustainable production of microalgae biomass for biofuel and chemicals through recycling of water and nutrient within the biorefinery context: A review

GCB Bioenergy, Volume 13, Issue 6, Page 914-940, June 2021., 2021
Studies on recycling of various streams for water and nutrient supply in microalgae cultivation are encouraging. However, presence and subsequent accumulation of organic and inorganic molecules produced during microalgae growth or generated during post‐processing can limit the long‐term recycling potential of these streams.
Wasif Farooq
wiley   +1 more source

GLYPHOSATE AND TURBIDITY REMOVAL IN WATER CONDITIONS BY CLARIFICATION WITH TANFLOC [PDF]

Periódico Tchê Química, 2018
With the progress in the agriculture sector, improper domains of pesticides, herbicides, and insecticides have grown, which have been negatively affected the environment until the present day. Therefore, the present work has as objective to evaluate the efficiency of the natural coagulant Tanfloc in the clarification stage with respect the herbicide ...
J. T. B. SILVA, K. C. ROCHA, R. M. F. CUBA   +2 more
openaire   +1 more source

Tannins from cashew tree (Anacardium occidentale) bark as a flocculant for water clarification

Revista Ambiente & Água, 2022
Concern about the overexploitation of natural resources has increased in recent decades, especially involving water and its treatment. Paradoxically, one of the sources of water pollution is the treatment itself, due to the use of chemical flocculants ...
Bruna Ferreira dos Anjos, Tatiane Kelly Barbosa de Azevêdo, Bruna Rafaella Ferreira da Silva, Renata Martins Braga, Alexandre Santos Pimenta, Francisca Adriana Ferreira De Andrade   +5 more
doaj   +1 more source

Evaluation of natural flocculant efficiency in the harvest of microalgae Monoraphidium contortum

SN Applied Sciences, 2021
This study assesses two parameters that can result in high efficiency in the recovery of the microalgae Monoraphidium contortum. The significant contribution of this paper is to test different coagulants in different conditions of concentration in the ...
Marcus Vinicius Ribeiro Ruggeri, Rodrigo Felipe Bedim Godoy, Pedro Augusto Arroyo, Elias Trevisan   +3 more
doaj   +1 more source

Polyelectrolyte complexes based on alginate/tanfloc: Optimization, characterization and medical application

International Journal of Biological Macromolecules, 2017
Hydrogels based on alginate and tanfloc (a cationic biopolymer obtained from natural condensed tannins) were successfully prepared. Tanfloc (TN) presents high aqueous solubility at pHs lower than 10; it contains substituted amino sites and molar weight of ca. 600,000gmol-1.
Débora P, Facchi, Ana C, Lima, Jean H, de Oliveira, Danielle, Lazarin-Bidóia, Celso V, Nakamura, Edmilson A, Canesin, Elton G, Bonafé, Johny P, Monteiro, Jesuí V, Visentainer, Edvani C, Muniz, Alessandro F, Martins   +10 more
openaire   +2 more sources

Life‐cycle assessment of the production of cationized tannins from Norway spruce bark as flocculants in wastewater treatment

Biofuels, Bioproducts and Biorefining, Volume 14, Issue 6, Page 1270-1285, November/December 2020., 2020
Abstract It will be necessary to make efficient use of our resources if our society is to be converted into a bio‐based economy. Every year large side streams of bark are produced in sawmills and pulp mills. In addition to utilizing the bark for heat and electricity production, as happens today, high‐value chemical components could be extracted prior ...
Karin Carlqvist, Mehrdad Arshadi, Torgny Mossing, Ulla‐Britt Östman, Hanna Brännström, Eelis Halmemies, Juha Nurmi, Gunnar Lidén, Pål Börjesson   +8 more
wiley   +1 more source

Study of the Sedimentation Parameters of an Iron Ore Tailing from Fundão Dam Using a Tannin-Based Coagulant

Mining, 2023
From the rupture of the Fundão dam in Mariana–MG, there are tailings still present at the bottom of the plant that must be recovered. The flocculation followed by sedimentation operation can be applied as a unit operation in this recovering process ...
Ítalo Paoli, João Vinícios Wirbitzki da Silveira   +1 more
doaj   +1 more source