Results 11 to 20 of about 129 (101)

Combined Application of Coagulation/Flocculation/Sedimentation and Membrane Separation for the Treatment of Laundry Wastewater

open access: yesInternational Journal of Chemical Engineering, 2019
The wastewater from industrial laundries has a high quantity of contaminants from the washing process, as well as chemical additives. Aiming at the treatment of this type of wastewater, the present study evaluated the performance of a combined ...
Camila O. C. Nascimento   +4 more
doaj   +2 more sources

The Use of Flocculation as a Preconcentration Step in the Microalgae Harvesting Process. [PDF]

open access: yesPhysiol Plant
ABSTRACT Flocculation is a widely utilized separation technique in colloid chemistry, the chemical industry, and wastewater treatment. However, its application in microalgal biomass production and downstream processing remains limited. Biomass harvesting represents a significant cost factor in large‐scale microalgae production, with the separation of ...
Gojkovic Z   +3 more
europepmc   +2 more sources

Decolorization of a Simulated Reactive Textile Dyeing Effluent using a Plant-derived Coagulant

open access: yesU.Porto Journal of Engineering, 2022
The ability of a commercial tannin-based coagulant on the decolorization of a simulated textile effluent containing a reactive dye was studied in batch mode.
Cláudia Machado   +2 more
doaj   +1 more source

Effects of microalgal concentration and pH with flocculant on microfiltration [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2023
To make algal biomass a suitable feedstock for fuel and bioproducts, a practical way of dewatering and concentrating algal cells must be devised. In this study, a system comprising microfiltration membranes combined with a flocculant was developed on a ...
Mendes Ana Luiza   +5 more
doaj   +1 more source

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

open access: yesPhysiologia 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

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

open access: yesGCB 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]

open access: yesPeriódico 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   +2 more
openaire   +1 more source

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

open access: yesRevista 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   +5 more
doaj   +1 more source

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

open access: yesSN 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   +3 more
doaj   +1 more source

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

open access: yesBiofuels, 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   +8 more
wiley   +1 more source

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