Speciation and coagulation performance of novel coagulant – Aluminium formate

Väänänen, Marja; Kupiainen, Laura; Rämö, Jaakko; Sarpola, Arja; Tanskanen, Juha

doi:10.1016/j.seppur.2011.11.010

Cited by 15 publications

(8 citation statements)

References 19 publications

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“…Sulphate forms precipitates with calcium, which is commonly used in hardness control. Formate can be used as a counter-anion to substitute these commonly used anions in the manufacturing of aluminium coagulants [3]. One advantage of formate as a counter-anion is that it is less corrosive than chloride [4].…”

Section: Introductionmentioning

confidence: 99%

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Preparation and coagulation performance of solid aluminium formate

Mikola

Tanskanen

2015

Journal of Water Process Engineering

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Section: Introductionmentioning

confidence: 99%

“…On the other hand, the solid form of the coagulant is much easier and less expensive to transport, and storage is also easier compared to liquid coagulant. Studies on the preparation of aluminium formate for water treatment and its coagulation performance have earlier focused only on the solution form of aluminium formate [3,11].…”

Section: Introductionmentioning

confidence: 99%

Preparation and coagulation performance of solid aluminium formate

Mikola

Tanskanen

2015

Journal of Water Process Engineering

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“…Different combinations of ESI‐MS have been extensively and traditionally applied to determine organic compounds like pharmaceuticals, antioxidants, proteins, and metabolites in different kind of samples like foods, urine, or wastewater (among others), obtaining excellent results in quantifying trace levels of those compounds . However, and to the best of our knowledge, its use to study inorganic polymers has been limited to a few examples involving Al‐based polymers and its use to study the role of polymers during nanomineral formation is restricted to the very recent studies of Yucelen et al using imogolite …”

Section: Introductionmentioning

confidence: 99%

“…Different combinations of ESI-MS have been extensively and traditionally applied to determine organic compounds like pharmaceuticals, antioxidants, proteins, and metabolites in different kind of samples like foods, urine, or wastewater (among others), obtaining excellent results in quantifying trace levels of those compounds. [37][38][39] However, and to the best of our knowledge, its use to study inorganic polymers has been limited to a few examples involving Al-based polymers 11,14,15,[40][41][42] and its use to study the role of polymers during nanomineral formation is restricted to the very recent studies of Yucelen et al using imogolite. 11,43 Although the previous studies provided a great contribution, opening MS to the field of inorganic polymers, some recurrent issues need to be addressed to achieve a routine use of these analytical techniques to the study of inorganic polymers in environmental nanogeosciences.…”

Section: Introductionmentioning

confidence: 99%

Detection and assignment of inorganic aqueous polymers relevant to environmental nanogeoscience by direct infusion electrospray ionization mass spectrometry

et al. 2019

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Inorganic polymers in aqueous solutions are being proposed as essential components in new theories concerning nonclassical nucleation and growth of nanominerals relevant to environmental nanogeosciences. The study of those complex natural processes requires multi‐technique analytical approaches able to characterize the solutions and their constituents (solutes, oligomers, polymers, clusters and nanominerals) from atomic to micrometric scales. A novel analytical approach involving an electrospray ionization source (ESI) coupled to time‐of‐flight mass spectrometry (TOF/MS) was developed to identify inorganic polymers in aqueous solution. To this end, the presence of initial Al oligomers and their polymerization processes was studied during a nanomineral aqueous synthesis (hydrobasaluminte, Al4SO4(OH)10·12‐36H2O). Ensuring the feasibility and robustness of the methodology as well as the stability of the polymers under study (avoiding undesirable fragmentation), a meticulous study of the ESI‐TOF MS working conditions was performed. Precision of the methodology was evaluated obtaining relative standard deviations below 3.3%. For the first time in the study of inorganic polymers in the earth sciences, the mass accuracy error (ppm) has been reported and the use of significant decimal figures of the m/z signal has been taken into account. Complementary to this, a four‐step polymer assignment methodology and a database with the Al− and Al‐SO42− polymers assigned were created. Several polymers have been assigned for the first time, including Al (SO4)+·H2O, Al2O(SO4)2+·H2O, Al5O4(OH)52+·2H2O, and Al3O5(OH)2−·4H2O, among others. The results obtained in the present study help create a foundation to include mass spectrometry as a routine analytical technique to study mineral formation in aqueous solution.

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“…Earlier, aluminium formate has been studied only in the treatment of surface water [12][13][14]. No previous studies on the use of aluminium formate in industrial effluent treatment have been published.…”

Section: Introductionmentioning

confidence: 99%

Performance of aluminium formate in removal of colloidal latex particles from industrial wastewater

Mikola

Tanskanen

2017

Journal of Water Process Engineering

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The coagulation efficiency of novel coagulant aluminium formate was studied in the treatment of highly contaminated effluent from a styrene butadiene latex manufacturing plant. The coagulation behaviour of the aluminium formate was compared to the behaviour of the commonly used polyaluminium chloride and aluminium sulphate. The effects of the coagulant type and dose and coagulation pH on the treatment efficiency were studied as well as the role of polyacrylamide coagulant aid. Floc separation was done using three different methods: sedimentation, filtration and centrifugation. Their functionality was evaluated as part of the coagulation performance studies.Good purification results were obtained with all of the tested coagulants, the lowest residual turbidities achieved being 0.7 NTU with aluminium formate, 1.4 NTU with polyaluminium chloride and 0.7 NTU with aluminium sulphate. It was also observed that aluminium formate is as effective as commercial coagulants and is thus a potential novel coagulant chemical due to its less harmful and biodegradable counter anion. When using only aluminium coagulants, flocs were found to be too fine to be removed by sedimentation but they could be effectively removed by filtration or centrifugation.The use of polyacrylamide was found to be useful in the sense that it enables the separation of flocs by simple sedimentation because the floc size is significantly increased. In this study new knowledge about the coagulation behaviour of of highly contaminated effluent from latex manufacturing was gained and aluminium formate was proved to be promising coagulant also in industrial effluent treatment.

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Speciation and coagulation performance of novel coagulant – Aluminium formate

Cited by 15 publications

References 19 publications

Preparation and coagulation performance of solid aluminium formate

Preparation and coagulation performance of solid aluminium formate

Detection and assignment of inorganic aqueous polymers relevant to environmental nanogeoscience by direct infusion electrospray ionization mass spectrometry

Performance of aluminium formate in removal of colloidal latex particles from industrial wastewater

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