Preliminary Studies of Methylene Blue Remotion from Aqueous Solutions by Ocimum basilicum

Karaghool, Haneen A. Kh.; Hashim, Khalid; Kot, Patryk; Muradov, Magomed

doi:10.3390/environments9020017

Cited by 17 publications

(9 citation statements)

References 30 publications

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“…Finally, the future studies can concentrate on the use of different technologies for the hydrophobic pollutants from water, such as the adsorption of hydrophobic pollutants on waste materials [31], filtration on cheap materials [32], electrochemical degradation, and biological degradation [33][34][35][36][37][38].…”

Section: Figure(6): Detection Of Hydrocarbon Degradation Percentage B...mentioning

confidence: 99%

The efficiency of purified bacteriocin from Lactobacillus acidophilus as a bioremediator of the burned engine and motor oils

Awadh¹,

Ibadi²,

Jawad³

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Petroleum hydrocarbons are one of the most prevalent and ubiquitous environmental pollutants, causing health and environmental risks, so some isolates from cows and buffalos were used in this study to remove these pollutants. Nine isolates of Lactobacillus spp from 20 samples of cows and buffalos milk types. 5 Lactobacillus acidophilus isolates were used in this study because of their excellent production of bacteriocin compared with the other species. The isolates were purified as follows: 70% saturation of ammonium salt followed by gel filtration on Sephadex -G150 was used to purify the bacteriocin. It resulted in a 47.75 % yield with 4.7-fold purification. The results of this study showed the use of 80µg/ml of bacteriocin increased the removal of hydrophobic pollutants from the burned motor and engine oils by 41% after 24 hours, which was more efficient than high doses of bacteriocin. For example, 100 µg/mL of bacteriocin removed only 33% of the contaminants. Furthermore, by extending the incubation period to 7 days, the hydrocarbon degradation percentage was increased by 78% in engine oil and 89% in burned motor oil. Thus, it can be concluded that bacteriocin bioremediation is an efficient and cost-effective biological treatment for eliminating petroleum hydrocarbons from water and protecting natural resources.

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Section: Figure(6): Detection Of Hydrocarbon Degradation Percentage B...mentioning

confidence: 99%

The efficiency of purified bacteriocin from Lactobacillus acidophilus as a bioremediator of the burned engine and motor oils

Awadh¹,

Ibadi²,

Jawad³

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…Water pollution with fluoride is currently remediated via various treatment technologies, ranging from single to complex approaches, including membrane, ion exchange, chemical precipitation, and adsorption (Garg & Sharma 2016;Al-Hashimi et al 2021;Hashim et al 2021a;Mousazadeh et al 2021). However, many of the utilised methods do not meet the economic or environmental requirements (Das & Nandi 2020;Emamjomeh et al 2020a;Abdulhadi et al 2021;Karaghool et al 2022). For example, the literature criticises the elevated operational cost of membrane-based methods and the sensitivity of membranes for organic matter, resulting in fouling problems and, accordingly, the need for pre-treatment units (Guo et al 2012;Hashim et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Electrochemical defluorination of water: an experimental and morphological study

Abdulredha

Al-Samarrai

Hussein

et al. 2022

Journal of Water, Sanitation and Hygiene for Development

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This experimental study concerns the elimination of fluoride from water using an electrocoagulation reactor having a variable flow direction in favour of increasing the electrolysing time, saving the reactor area, and water mixing. The detention time of the space-saver EC reactor (S-SECR) was measured and compared to the traditional reactors using an inert dye (red drain dye). Then, the influence of electrical current (1.5 ≤ δ ≤ 3.5 mA cm−2), pH of water (4 ≤ pH ≤ 10), and distance between electrodes (5 ≤ ϕ ≤ 15) on the defluoridation of water was analysed. The effect of the electrolysing activity on the electrodes' morphology was studied using scanning electron microscopy (SEM). Additionally, the operational cost was calculated. The results confirmed the removal of fluoride using S-SECR met the guideline of the World Health Organization (WHO) for fluoride levels in drinking water of ≤1.5 mg/L. S-SECR abated fluoride concentration from 20 mg/L to the WHO's guideline at δ, ϕ, pH, operational cost, and power consumption of 2.5 mA cm−2, 5 mm, 7, 0.346 USD m−3, and 5.03 kWh m−3, respectively. It was also found the S-SECR enhanced the detention time by 190% compared to the traditional reactors. The appearance of dents and irregularities on the surface of anodes in the SEM images proves the electrolysing process.

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“…Hashim et al (2019) used an electrocoagulation cell to remove black reactive dyes from water under different experimental conditions and found the removal efficiency reached 96%. Removal of dyes using plants is another common method nowadays; for example, Karaghool et al (2022) used sweet basils to remove a textile dye from water. Although the sweet basils removed 93% of 25 mg/L of the dye, the required time was very long (about ten days).…”

Section: Introductionmentioning

confidence: 99%

Water purification using an eco-friendly adsorbent

Hassan

Samaka

2022

Water Practice and Technology

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The literature has proved the high efficiency of activated carbon in removing a wide range of pollutants from water; however, the high cost of industrial types of activated carbon is one of the barriers to the wide application of this efficient adsorbent. Therefore, this study aims at the development of a new type of activated carbon from the Schanginia/sp plant (Schanginia activated carbon (SAC)) and the possibility of using it as a biosorbent for the removal of methylene blue dye (MBD) from water. The SAC was subjected to characterisation analysis, including the surface area (SBET), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), and statistical parametric mapping (SPM) before using it to remove the MBD. Furthermore, the efficacy of SAC was investigated in batch experiments, taking into account the effects of several experimental factors, namely pH of the solution, contact duration, SAC dose, and MBD concentration. The results showed the maximum uptake of MBD was 33.34 mg/g, and the Langmuir model is suitable to reproduce the optimum biosorption. In conclusion, the obtained results proved the applicability of SAC for the removal of MBD from water.

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Preliminary Studies of Methylene Blue Remotion from Aqueous Solutions by Ocimum basilicum

Cited by 17 publications

References 30 publications

The efficiency of purified bacteriocin from Lactobacillus acidophilus as a bioremediator of the burned engine and motor oils

The efficiency of purified bacteriocin from Lactobacillus acidophilus as a bioremediator of the burned engine and motor oils

Electrochemical defluorination of water: an experimental and morphological study

Water purification using an eco-friendly adsorbent

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