Managing sulfate ions produced by sulfate radical-advanced oxidation process using sulfate-reducing bacteria for the subsequent biological treatment

Akbari, Abbas; Sadani, Mohsen; Amin, Mohammad Mehdi; Teimouri, Fahimeh; Khajeh, Mehdi; Mahdavi, Mohammad; Mirfazaelian, Hadi

doi:10.1016/j.jece.2018.09.004

Cited by 14 publications

(5 citation statements)

References 64 publications

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“…Advanced Oxidation Process (AOPs) is industrially used for the treatment of wastewater, including to generate strong oxidizing free radicals that attack contaminants and break the chemical bonds. However, it's difficult to completely mineralize organic compounds into CO 2 and H 2 O (Akbari et al 2018;Gonzalez et al 2020;Sanchez-Montes et al 2020). The water effluent contains carboxylic acids, such as acrylic acid, oxalic acid, acetic acid, etc (Wang et al 2017;Sun et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Efficient removal of acetic acid by a regenerable resin-based spherical activated carbon

Sun

Zhao

et al. 2021

Water Science and Technology

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Carboxylic acids are the main pollutant of industrial wastewater during the Advanced Oxidation Process (AOPs). In this study, we here study a resin-based spherical activated carbon (RSAC, AF5) as an adsorbent and use acetic acid as a model substrate for adsorption investigation. The pH = 3, temperature = 298 K were fixed by batch technique. The pseudo-second-order kinetic model, the intraparticle and external models are fitted well, and it was found that the adsorption of acetic acid onto AF5 was controlled by liquid film diffusion. Freundlich model indicates the adsorption process is heterogeneous multi-molecular layer adsorption on the surface. AF5 shows good regenerative ability; the recovery rate of adsorption capacity is ∼88% after 5 cycles. And COD adsorption removal rate can be maintained 100% for over 35 h in an actual AOPs effluent, and it can be eluted for 100% after 8 h by 0.8wt% NaOH. The characterizations, including XRF, XRD, TG/DSC,FTIR, SEM and N2 adsorption, show that the excellent adsorption performance is mainly due to the microporous structure and large specific surface area (1,512.88 m2/g), the adsorption mechanism mainly including pore filling effect and electrostatic attraction. After five adsorption-recycles, AF5's pore characteristic does not change significantly. This study provided a scientific basis for the wastewater standard discharge process of AOPs coupled adsorption.

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Section: Introductionmentioning

confidence: 99%

Efficient removal of acetic acid by a regenerable resin-based spherical activated carbon

Sun

Zhao

et al. 2021

Water Science and Technology

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“…They are generally responsible for the temporary hardness of water, while carbonate ions, present in calcium and magnesium, can form solid precipitates, contributing to the scaling of pipes and household appliances. 30 Knowledge of the ionic composition of water is important for assessing its quality and suitability for different uses, such as drinking water supply, irrigation or industrial use. High concentrations of certain ions may require water treatment to meet quality standards and prevent problems such as scaling of equipment or deterioration in drinking water quality.…”

Section: Physicochemical Traitsmentioning

confidence: 99%

“…This contamination may be the result of the presence of livestock and domestic animals that have free access to the watercourse, as well as the use of animal feces as fertilizer in the cultivated areas along the river and the contribution of streptococci from the upper zones. 30…”

Section: Bacteriological Qualitymentioning

confidence: 99%

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Investigation of the Water Quality in Oum Er Rbia River (Morocco): A Multifaceted Analysis of Physicochemical, Undesirable Substances, Toxic Compounds, and Bacteriological Traits

2024

TJNPR

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In the same way, the Lancet Commission on Pollution and Health has brought to light a sobering reality an estimated 1.8 million deaths worldwide are attributed to water contamination. 7 This revelation underscores the urgent need for comprehensive assessments of water quality to understand the multifaceted dimensions of the challenges posed by polluted water sources. Among the many regions grappling with water quality issues, the Oum Er Rbia River in Morocco stands out as an essential focal point for scientific inquiry. [8][9][10] As an indispensable source of water for agricultural, industrial, and domestic purposes, the Oum Er Rbia River plays a crucial role in sustaining the livelihoods of the communities along its course. 11 However, the escalating pressures of anthropogenic activities and environmental changes on this vital waterway necessitate a thorough and multifaceted examination of its water quality. 12,13 Several studies have revealed that some natural processes, such as weathering, precipitation, and soil erosion, play a pivotal role in shaping the quality of Oum Er Rbia River water. 10 Weathering of rocks contributes minerals and ions to water bodies, influencing their chemical composition. 14 Precipitation can alter the balance of nutrients and pollutants in the water, while soil erosion transports sediment and contaminants into rivers, affecting their overall quality. Understanding these natural processes is crucial for distinguishing between baseline conditions and anthropogenic impacts on water quality. 15,16 On the other hand, the influence of human activities on the Oum Er Rbia River water cannot be understated. Anthropogenic sources, including agricultural, urban, and industrial activities, significantly contribute to the degradation of surface water quality. 17 Agricultural runoff introduces pesticides, fertilizers, and other agrochemicals into rivers, altering nutrient levels and posing threats to aquatic ecosystems. 11

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“…A spectrophotometer was used to record the absorption spectra of the solutions produced. Using spectrophotometry, percentage degradation was calculated according to the literature 13 , % degradation = 𝒊𝒏𝒊𝒕𝒊𝒂𝒍 𝒄𝒐𝒏𝒄.−𝒇𝒊𝒏𝒂𝒍 𝒄𝒐𝒏.…”

Section: Effect Of Fenton Detectormentioning

confidence: 99%

Effect of Chromium (VI) on the Oxidation of Methylene Blue Dye by Fe3O4/ Chitosan Composite

Sadiq

Saleh

2023

Baghdad Sci.J

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Heavy metal ion removal from industrial wastewater treatment systems is still difficult because it contains organic contaminants. In this study, functional composite hydrogels with photo Fenton reaction activity were used to decompose organic contaminants. Fe3O4 Nanoparticle, chitosan (CS), and other materials make up the hydrogel. There are different factors that affected Photo-Fenton activity including (pH, H2O2 conc., temp., and exposure period). Atomic force microscopy was used to examine the morphology of the composite and its average diameter (AFM). After 60 minutes of exposure to UV radiation, CS/ Fe3O4 hydrogel composite had degraded methylene blue (M.B.) dye by 92 percent. In the meantime, following an 1hour of visible irradiation, COD (Chemical Oxygen Demand) dropped to 6.1 mg/l.

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Managing sulfate ions produced by sulfate radical-advanced oxidation process using sulfate-reducing bacteria for the subsequent biological treatment

Cited by 14 publications

References 64 publications

Efficient removal of acetic acid by a regenerable resin-based spherical activated carbon

Efficient removal of acetic acid by a regenerable resin-based spherical activated carbon

Investigation of the Water Quality in Oum Er Rbia River (Morocco): A Multifaceted Analysis of Physicochemical, Undesirable Substances, Toxic Compounds, and Bacteriological Traits

Effect of Chromium (VI) on the Oxidation of Methylene Blue Dye by Fe3O4/ Chitosan Composite

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