Investigation of the Effects of Salinity and Temperature on the Removal of Iron from Water by Aeration, Filtration, and Coagulation

Podgórni, E.; Rząsa, Mariusz

doi:10.15244/pjoes/24927

Cited by 11 publications

(13 citation statements)

References 4 publications

(3 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The increased values of alkalinity among such types of substances arise from the presence of hydroxyl groups. The alkalinity indicator serves as a polymerisation degree measure [7,8].…”

Section: Coagulationmentioning

confidence: 99%

See 1 more Smart Citation

Examination of coagulant additives on qualitative composition of selected thermal waters

Łukasiewicz

Rząsa

2017

E3S Web Conf.

Self Cite

View full text Add to dashboard Cite

Abstract. On the territory of Poland occur rich deposits of thermal waters. Although the utilisation of these waters is continuously extending, Poland is not exploiting their full geothermal potential due to high investment costs. Thermal waters industry in Poland to date indicates operations within mainly balneology as well as recreation objectives. Higher temperature values of these waters foster a washout in the surrounding rocks resulting in a high concentration of diluted substances which must be often removed. The following study investigates thermal waters from three intakes for which coagulation processes were conducted. Research clearly shows that coagulant additives not impact on the qualitative composition of thermal water, what is very important according to medicinal properties of water. The study results may be further applied as a valuable piece of information for further exploitation in balneology or within the heating sector and other installations.

show abstract

“…The increased values of alkalinity among such types of substances arise from the presence of hydroxyl groups. The alkalinity indicator serves as a polymerisation degree measure [7,8].…”

Section: Coagulationmentioning

confidence: 99%

“…The thermal water in the intake frequently does not fulfil such requirements, therefore it shall be subjected to the purification process. Coagulation is one of the purification methods concerning waters with an increased level of iron and manganium content [6,7].…”

Section: Introductionmentioning

confidence: 99%

Examination of coagulant additives on qualitative composition of selected thermal waters

Łukasiewicz

Rząsa

2017

E3S Web Conf.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The problem of extracting iron from natural and wastewater remains unresolved, despite the large number of publications [Khatri et al, 2017;Ryzhenko et al, 2019]. If the known methods of water deironing are considered, the most common technique of groundwater deironing is the method of simplified aeration [Podgórni et al, 2014]. In this case, the oxidation of iron in water is realized through the contact of water with air and its subsequent settling and filtration.…”

Section: Introductionmentioning

confidence: 99%

Sorbent-Catalyst for Acceleration of the Iron Oxidation Process

Gomelya¹,

Tverdokhlib²,

Shabliy³

et al. 2021

J. Ecol. Eng.

View full text Add to dashboard Cite

In this work, the process of water deironing by using magnetite as a catalyst to accelerate the oxidation of iron ions in an aqueous medium was investigated. It was shown that the efficiency of iron ion extraction depends on the solution concentration, sorbent dose and contact time. In all cases, the use of magnetite accelerated the process of extraction of iron by more than an order of magnitude in comparison with similar experiments on the oxidation of iron without the addition of a catalyst. At the pH values greater than 6, the use of magnetite as a catalyst contributes to the deep purification of water from iron ions.

show abstract

“…The removal of iron and hydrogen sulfide can be easily achieved by aeration and filtration of water [Podgorni et al, 2014]; nitrates are easily excreted on anion exchange resins [Kassim et al, 2019]. Purification of water from manganese (II) ions is a much more complex problem, as the Mn 2+ ions in an aerated medium are oxidized tens to hundreds of thousands of times slower than the Fe 2+ ions.…”

Section: Introductionmentioning

confidence: 99%

Usage of Sorbent-Catalyst to Accelerate the Oxidation of Manganese

Gomelya¹,

Tverdokhlib²,

Shabliy³

et al. 2021

J. Ecol. Eng.

View full text Add to dashboard Cite

The processes of manganese (II) ions removal from water using sorbent catalysts and ion exchange materials modified with iron oxides were studied. It was shown that manganese ions oxidize very slowly in artesian water, even when the pH is adjusted to 9.0. Intensive aeration of solutions due to stirring also does not promote the oxidation of manganese (II) ions. The degree of manganese extraction due to oxidation is reduced from 20-30% for solutions with a concentration of manganese ions of 1 and 5 mg/dm 3 to 11-15% for solutions with a concentration of 15 and 30 mg/dm 3 . A significant increase in the oxidation efficiency of manganese ions was achieved by using magnetite as a sorbent catalyst. The efficiency of water demanganization increases along with the intensity of water aeration when mixing solutions. It was established that strongly acid cation exchangers provide efficient extraction of manganese ions from water. At the same time, a high exchange capacity of strong acid cation exchange resin KU-2-8 in acid and salt form was noted. It was shown that the capacity of manganese ions of this cation exchange resin in the Ca 2+ -form is slightly lower. When using the KU-2-8 in Ca 2+ -form of cation exchange resin to remove manganese ions from the solution already in the first samples, the leakage of manganese ions at the level of 10 mg/dm 3 and above was observed. This indicates that this form of ion exchanger is not suitable for deep purification of water from manganese (II) ions. In order to increase the efficiency of manganese ion extraction from water, increase the duration of the filter cycle, magnetite and magnetite-modified KU-2-8 cation exchange resin were used as a sorbent-catalyst. It was shown that the cation exchange resin modified with magnetite provides the removal of a significant part of manganese ions due to catalytic oxidation on magnetite. The conditions of effective manganese extraction under static and dynamic conditions are determined.

show abstract

Investigation of the Effects of Salinity and Temperature on the Removal of Iron from Water by Aeration, Filtration, and Coagulation

Cited by 11 publications

References 4 publications

Examination of coagulant additives on qualitative composition of selected thermal waters

Examination of coagulant additives on qualitative composition of selected thermal waters

Sorbent-Catalyst for Acceleration of the Iron Oxidation Process

Usage of Sorbent-Catalyst to Accelerate the Oxidation of Manganese

Contact Info

Product

Resources

About