Recovery of Calcium Carbonate from Wastewater Treatment
Recovery of Calcium Carbonate from Wastewater Treatment Sludge Using a Flotation Technique
Unfortunately, the stable solid/liquid interface of calcium carbonate limits the recovery efficiency of metal. As an important means of material activation, the mechanical force has been tried to be applied to treat metal-containing wastewater using calcium carbonate and works well (Hu et al., 2017, Wen et al., 2025, Zhang et al., 2025
Recovery of Calcium Carbonate from Wastewater Treatment
Citation: Maree JP, Zvinowanda CM, Mujuru M, Matsapola RM, Delport DJ, et al. (2012) Recovery of Calcium Carbonate from Wastewater Treatment Sludge Using a Flotation Technique. J Chem Eng Process
Recovery of Calcium Carbonate from Wastewater Treatment Sludge Using a Flotation Technique Jannie P. Maree 1 , Caliphs M. Zvinowanda 1 *, Munyaradzi Mujuru 1 , Regina M. Matsapola 2 , David J
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The acidification significantly affects the distribution of species in the wastewater, as showed in Fig. S1.Without acidification, P mainly is present as HPO 4 2− (55%), H 2 PO 4 − (18%), aqueous CaHPO 4 (14%) and MgHPO 4 (8%). The fraction of H 2 PO 4 − increases to 84% whereas the fraction of HPO 4 2− drops to 8% at pH 6.0. At pH 3.8, 94% of the P is in the form of H 2 PO 4 2−.
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Recovery of Calcium Carbonate from Wastewater Treatment disposal of the solids removed or generated during treatment [1]. The flotation process is widely used in industrial wastewater treatment plants, where it is used to remove fats, oil, grease and suspended solids from wastewater.
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Especially, in the Pulp and Paper industry, the removal of scaling compound, called calcium carbonate, is a key point in the perspective of a re-use of the wastewater. According to crystallization theory, precipitation is defined as a “reactive crystallization”.
