An investigation on the capability of magnetically separable Fe3O4/mordenite zeolite for refinery oily wastewater purification

Hesas, Roozbeh Hoseinzadeh; Baei, Mazyar Sharifzadeh; Rostami, Hamid; Gardy, Jabbar; Hassanpour, Ali

doi:10.1016/j.jenvman.2018.09.005

Cited by 53 publications

(16 citation statements)

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“…The broad peak of approximately 3400 cm −1 is related to the stretching vibration of H-O-H of the cinder/zeolite structure [35]. The peak at 1641 cm −1 is attributed to the H-O-H symmetric vibration of lattice water in the cinder/zeolite [36]. The peak intensity of 1641 cm −1 in synthetic zeolite and ZHLA is evidently enhanced because the pores and specific surface area are significantly higher than those in the cinder, which is capable of adsorbing more water.…”

Section: Zhla Characterizationmentioning

confidence: 99%

“…The peak intensity of 1641 cm −1 in synthetic zeolite and ZHLA is evidently enhanced because the pores and specific surface area are significantly higher than those in the cinder, which is capable of adsorbing more water. The peaks at 988 and 742 cm −1 are ascribed to the asymmetric stretching vibration of internal tetrahedral models of O-T-O bonds in TO 4 (where T denotes Si, Al, or Fe) and an external symmetrical stretching vibration of O-T-O bonds, respectively [33,36]. Phenolic hydroxyl groups and carboxylic acid groups are the two primary function groups in terms of the chelating chemistry of HA.…”

Section: Zhla Characterizationmentioning

confidence: 99%

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Restraint of enzymolysis and photolysis of organic phosphorus and pyrophosphate using synthetic zeolite with humic acid and lanthanum

Zhao

Sheng

et al. 2020

Chemical Engineering Journal

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Section: Zhla Characterizationmentioning

confidence: 99%

Section: Zhla Characterizationmentioning

confidence: 99%

Restraint of enzymolysis and photolysis of organic phosphorus and pyrophosphate using synthetic zeolite with humic acid and lanthanum

Zhao

Sheng

et al. 2020

Chemical Engineering Journal

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“…The application of different physical and chemical treatments at the purification of waste materials is described in [24][25][26]. Now, let us pay attention to the properties of potential materials usable for microwave heating.…”

Section: Experimental Conditionsmentioning

confidence: 99%

Effective Ecological and Cheap Heating of Dwelling Spaces

et al. 2019

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The sustainability of human civilization depends largely on green energy management. This work represents one way to achieve this goal. The work is devoted to converting microwave radiation to heat. The article analyses different ways of heating residential and utility areas. Materials suitable for converting microwave radiation to heat from ceramic composites, concretes, fire clays, and bauxite with water glass are enclosed. For all materials we have measured DTA/TG (Differential Thermal Analysis/Thermogravimetric Analysis) curves, XRD (X-Ray Diffraction) patterns, chemical composition of samples, the specific heat capacity c p [J/kg.K], thermal conductivity k [W/m.K] and diffusivity α [m 2 /s -1 ]. The cooling curves of these materials after microwave heating are characterized in detail. The paper also presents a description and construction of a microwave reactor together with the parameters of the living space heating.Sustainability 2020, 12, 55 2 of 15 and oceans or the environment. The most suitable sources of this origin for heating modern homes are solar energy and energy from biomass. Wind energy is less advantageous; it can rather attract enthusiasts but its potential for family houses is not so great simply because such types need an open environment exposed to appropriate weather conditions. However, as mentioned, placing an object in such an environment increases the heat loss. The solution would be expensive and complicated, which would not pay off. Solar energy, on the other hand, is useable with a good potential in almost every family house or industry. The solar radiation after the impact on the surface area creates values from 1000 to 1250 kWh per year, thus using a photovoltaic panel or solar collectors can heat a household. Photovoltaic panels in the form of a sunroof have also entered the market, making use of two functions. There are also various collectors-window or wall. The window collector has a thickness of 20 to 30 cm and corresponds to a double window. Heat accumulated in the cavity is then consequently transferred to the storage tank by gravity or by a fan.Radiation heat has already been used for many centuries. A typical conventional heat is supplied, for instance, by a radiator or a typical electric heater (convector), through heating the air in its neighbourhood. At their surface temperature of 90 • C, infrared panel heaters radiate at the wavelength of approximately 9 to 10 µm, which is a suitable component for the human organism, influencing the growth of organism cells and psychological comfort.Microwave electromagnetic radiation represents another very efficient method of radiation heating. As opposed to other heating methods, higher temperatures can be achieved by a dielectric heating inside the heating body instead of on its surface [16][17][18].This paper contains an experimental analysis of the physical aspects of the conversion of microwaves to heat, while ensuring the safety of such a process. Specific ceramic materials were selected and experimentally checked for such a...

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“…Moreover, response surface methodology was applied to optimize the removal condition and mechanism of Cr(Ⅵ) by Na2SO3/CaO (Zhao et al 2017). Besides, it has been shown that the response surface method is used to examine the potential of Fe3O4/mordenite zeolite for the purification of oily wastewater and observed that pH is the most important factor influencing Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD) removal (Hesas et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Optimization of Strontium Removal Process From Contaminated Water Using Zeolite Nanocomposites

Karmaker

Eljamal

Saha

2021

Preprint

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The effective removal of strontium from polluted water is an emerging issue worldwide, especially in Japan, after the destruction of Fukushima’s Daiichi Nuclear Power Plant. In the strontium removal process, statistical optimization of associated factors is needed to reduce the quantity of chemicals and the number of experimental trials. In this study, response surface methodology based on the central composite design was employed for assessing the influence of different factors and their interaction effects on the efficiency of strontium removal. We have considered nanoscale zero-valent iron-zeolite (nZVI-Z) and nano-Fe/Cu zeolite (nFe/Cu-Z) as adsorbents for the effective removal of strontium. The present study showed that the most statistically significant potential contributor was initial concentration, followed by contact time in the removal process. The study indicated that the interaction effect between contact time and initial concentration was statistically important, suggesting the need for a multi-mechanism technique in the removal phase of strontium. Tόth, Langmuir, Dubinin-Astakhov (D-A), Freundlich, and Hill isotherm models were also fitted with the experimental strontium adsorption data, in which the Tόth model fitted best compared to the other models based on the RMSD.

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An investigation on the capability of magnetically separable Fe3O4/mordenite zeolite for refinery oily wastewater purification

Abstract: This is a repository copy of An investigation on the capability of magnetically separable Fe O /mordenite zeolite for refinery oily wastewater purification ₃ ₄ .

Cited by 53 publications

References 55 publications

Restraint of enzymolysis and photolysis of organic phosphorus and pyrophosphate using synthetic zeolite with humic acid and lanthanum

Restraint of enzymolysis and photolysis of organic phosphorus and pyrophosphate using synthetic zeolite with humic acid and lanthanum

Effective Ecological and Cheap Heating of Dwelling Spaces

Optimization of Strontium Removal Process From Contaminated Water Using Zeolite Nanocomposites

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