Chitosan for Direct Bioflocculation Processes

Eric Lichtfouse (1) , Nadia Morin-Crini (2) , Marc Fourmentin (3) , Hassiba Zemmouri , Inara Oliveira Carmo Do Nascimento , Luciano Matos Queiroz , Mohd Yuhyi Mohd Tadza , Lorenzo A Picos-Corrales , Haiyan Pei , Lee D Wilson , Grégorio Crini (2)

1 CEREGE - Centre européen de recherche et d'enseignement des géosciences de l'environnement
2 LCE - Laboratoire Chrono-environnement (UMR 6249)
3 LPCA - Laboratoire de Physico-Chimie de l'Atmosphère

Coagulation-flocculation is a major process allowing to remove suspended particles from municipal and industrial wastewater. This process commonly involves metal salts as coagulants and synthetic organic polymers as floccu-lants. Although those chemicals are cheap, efficient, available and easy to use, they have drawbacks such water pollution by metals, and production of large amounts of toxic sludges. Therefore, safer biocoagulants and bioflocculants of biological origin are currently developed. For instance, the direct flocculation process involves water-soluble, ionic organic polymers, and thus do not need the addition of metal

Mots clés: Chitosan; Wastewater treatment; Sludge dewatering; WASTE-WATER TREATMENT; ALUMINUM-CHLORIDE; LANDFILL LEACHATE; PHOSPHATE REMOVAL; DYE REMOVAL; PHOSPHORUS REMOVAL; OIL MILL EFFLUENT; MICROCYSTIS-AERUGINOSA CELLS; ORGANOCHLORINE PESTICIDES; Bioflocculant; Direct bioflocculation

Mots clés: ENVIRONMENTAL APPLICATIONS

Domaines: Géochimie; Catalyse; Sciences et techniques de l'agriculture; Santé publique et épidémiologie; Ecotoxicologie; Chimie de coordination; Polymères; Chimie inorganique; Ingénierie de l'environnement; Alimentation et Nutrition; Santé

Eric Lichtfouse, Nadia Morin-Crini, Marc Fourmentin, Hassiba Zemmouri, Inara Oliveira Carmo Do Nascimento, et al.. Chitosan for Direct Bioflocculation Processes. Crini, Grégorio; Lichtfouse, Eric. Sustainable Agriculture Reviews 36: Chitin and Chitosan: Applications in Food, Agriculture, Pharmacy, Medicine and Wastewater Treatment, 36, Springer International Publishing AG, 2019, Sustainable Agriculture Reviews, 9783030165819. ⟨10.1007/978-3-030-16581-9_9⟩. ⟨hal-02152898⟩