Construction of the micro-electrolysis system by Fe0 and clay-carbon derived from oil refining for the removal of ozone disinfection by-products

Shi, Yahui; Cheng, Ximing; Wan, Dongjin; Chen, Xiangxiang; Liu, Yongde; Zhang, Zhixiang; Yu, Wei; Gao, Yafei

doi:10.1016/j.colsurfa.2021.128224

Cited by 4 publications

(3 citation statements)

References 44 publications

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“…People weren't as rich as they are today, consumed fewer calories and ate less meat, so less water was needed to produce food. They needed a third of the volume of water we currently extract from the river [9]. Today, the competition for water resources is much more intense.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Effluent Salty Wastewater Treatment from a Solar Desalination Pond

Rasekhnia¹,

Farahbod²

2023

ANP

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In this research, the quality of the wastewater discharged into the environment has been investigated. The effluent from solar desalination pond contains large amounts of TDS (3.68 grams per liter) and TH (6.50 grams per liter). Since the use of filter is not economical in this case, three types of commercial coagulants such as aluminum sulfate, ferric chloride and ferric sulfide have been used in this study. The main parameters such as effectiveness of three inorganic coagulants, ammonium sulfate, ferric sulfate, and ferric chloride, which separately help to remove hardness, have been studied. According to the results, using laboratory test, 25/g of ferric sulfate as coagulant is best coagulant mass and the ratio of 4 to 3 for auxiliary coagulant (sodium carbonate and sodium hydroxide) to coagulant will be best ratio. Also, the mixing rate of 120 rpm in the first reactor will give the best mixing speed. These conditions will lead to 0.348 grams per liter of TDS, 0.345 grams per liter of TH and 0.195 grams per liter of calcium hardness and 300 micro Siemens electrical conductivity of the purified sample.

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Section: Introductionmentioning

confidence: 99%

Experimental Study of Effluent Salty Wastewater Treatment from a Solar Desalination Pond

Rasekhnia¹,

Farahbod²

2023

ANP

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“…[28][29][30] According to our previous research, spent bleaching earth (SBE, a solid waste from oil refining) can be treated as the raw material for anaerobic pyrolysis to prepare adsorbent SBE@C for the effective removal of various pollutants in water. 31 Herein, SBE@C with satisfactory surface area, chemical stability and low cost will be an appropriate carrier for the immobilization of Fe 0 . Therefore, constructing an Fe C micro-electrolysis system through loading Fe 0 on the surface of SBE@C could be a promising approach to achieve efficient removal of Sb(V) in water.…”

Section: Introductionmentioning

confidence: 99%

“…Herein, the dispersion and stability of Fe 0 can be enhanced using carbon materials 28‐30 . According to our previous research, spent bleaching earth (SBE, a solid waste from oil refining) can be treated as the raw material for anaerobic pyrolysis to prepare adsorbent SBE@C for the effective removal of various pollutants in water 31 . Herein, SBE@C with satisfactory surface area, chemical stability and low cost will be an appropriate carrier for the immobilization of Fe 0 .…”

Section: Introductionmentioning

confidence: 99%

Enhanced removal of Sb(V) by iron‐spent bleaching earth carbon binary micro‐electrolysis system: performance and mechanism

Wan

Shi

et al. 2023

J of Chemical Tech & Biotech

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BACKGROUND In this work, the construction of a zero‐valent iron‐loaded spent bleaching earth carbon binary micro‐electrolysis system (Fe0/SBE@C) was first developed for antimony(V) (Sb(V)) removal in water. RESULTS Fe0/SBE@C at 4:1 Fe‐to‐SBE@C mass ratio can obtain satisfactory Sb(V) removal and less Fe dissolution under acid (pH 3) and neutral (pH 7) conditions. Sb(V) removal by Fe0/SBE@C accorded with a second‐order kinetic model. Activation energy of Fe0/SBE@C reaction for Sb(V) removal was 27.61 kJ mol−1. Optimal reaction conditions forecasted by the response surface method (RSM) was a dosage of 0.19 g L−1, a temperature of 45 °C and initial pH of 4.0, contributing to Sb(V) removal of 98.2%. Clearly, SO42− and Cl− (as electrolytes) had no obvious effect on Sb(V) removal; CO32−, PO43− and SiO32− showed obvious inhibition, likely due to iron passivation (pH > 10.5) and formation of precipitation (e.g., FeCO3, Fe(OH)2 and Fe2(SiO3)3); N2 atmosphere was more conducive to Sb(V) removal. CONCLUSION Sb(III) concentration in the solution was almost zero without adjusting the initial pH. It was deduced that Sb(V) removal in Fe0/SBE@C micro‐electrolysis system was probably the combined result of adsorption, coagulation and electrochemical reduction. © 2023 Society of Chemical Industry (SCI).

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Experimental study of order and constant rate of chlorine removal reaction using ion exchange resin

Farahbod

2023

Appl Water Sci

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In this research, a strong anionic resin was prepared to remove chloride ions. This study was performed in a laboratory pilot to evaluate effective parameters such as temperature, amine flow rate, pH, chloride ion concentration and concentration of resin caustic. The purpose of this work is to determine kinetics of the resin reaction and determination of the optimal operating conditions in order to achieve maximum saturation. This study shows that volume of distilled water passing through resin to eliminate alkalinity at temperatures 40 °C, 50 °C and 60 °C is equal to 5500 ml, 5000 ml and 7000 ml, respectively. This work states that a temperature 50 °C is more appropriate than other temperatures. The results of this research show that volume of caustic for resin recovery is 8.5 L at a temperature of 50 °C. This study shows that amount of distilled water to eliminate alkalinity of the resin is equal to 5 L. Results show that the order of reaction to chloride ion concentration is equal to 0.794 and reaction constant is equal to exp (−1.8753).

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Construction of the micro-electrolysis system by Fe0 and clay-carbon derived from oil refining for the removal of ozone disinfection by-products

Cited by 4 publications

References 44 publications

Experimental Study of Effluent Salty Wastewater Treatment from a Solar Desalination Pond

Experimental Study of Effluent Salty Wastewater Treatment from a Solar Desalination Pond

Enhanced removal of Sb(V) by iron‐spent bleaching earth carbon binary micro‐electrolysis system: performance and mechanism

Experimental study of order and constant rate of chlorine removal reaction using ion exchange resin

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