Nitrobenzene-adsorption capacity of carbon materials released during the combustion of woody biomass

Dai, Yingjie; Mihara, Yoshihiro; Tanaka, Shunitz; Watanabe, Kiyofumi; Terui, Naohito

doi:10.1016/j.jhazmat.2009.09.119

Cited by 28 publications

(8 citation statements)

References 29 publications

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“…The carbon material showed good adsorbing ability comparable to that of commercially available activated carbon. 9 It was also revealed that sludge generated in a plant for drinking water treatment and Plateanus's dead leaves showed good adsorption performance for the removal of heavy metals and some organic matter. [10][11][12]…”

Section: Survey Of Pollution In the Songhua Rivermentioning

confidence: 99%

Development of Separation Technologies for Environmental Remediation

Tanaka

2018

ANAL. SCI.

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This paper introduces some studies on the development of separation technologies for environmental remediation that have been performed in my laboratory over the past 20 years. The studies are related mainly to the development of easily collectable adsorbents and eco-friendly remediation technologies to remove pollutants from contaminated environments. First, the investigation of pollution in the Songhua River in China is described because it was that research that gave me the opportunity to consider the necessity of an easily collectable adsorbent. Then, the separation methods using the modified magnetite to remove pollutants by a magnet are introduced and the development of adsorbents that can float up to the water surface after adsorption at the bottom of the water is described. Electrochemical methods to accumulate pollutants in water on a carbon fiber electrode and electro-kinetic remediation to remove pollutants in soil are also introduced.

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Section: Survey Of Pollution In the Songhua Rivermentioning

confidence: 99%

Development of Separation Technologies for Environmental Remediation

Tanaka

2018

ANAL. SCI.

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“…Many kinds of technology and processes are currently used for removing organic compounds from industrial effluents. Those are biological treatments, membrane processes, advanced oxidation processes, chemical, and electrochemical methods, and physical adsorption . The process involving activated carbon (AC) for adsorption is regarded as one of the most efficient processes, because AC is the widely employed as a conventional adsorbent due to its high adsorption capacity for a variety of organic substances .…”

Section: Introductionmentioning

confidence: 99%

A novel adsorbent obtained by caging activated carbon by konjac glucomannan gel for elimination of organic compounds

Dai

Yan

Zhang

et al. 2014

J of Applied Polymer Sci

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In this study, the adsorptive ability of the konjac glucomannan gel containing activated carbon (KGMG–AC) was investigated by measuring the removal of several organic compounds with different charges, such as nitrobenzene (NB), methylene blue (MB), and rose bengale (RB). The physical and chemical properties, adsorption dynamics, adsorption isotherms, and the effect of pH of the adsorbents were compared with those of a commercially available powdered activated carbon (AC). The results of the present study indicate that the removal ratio of NB, MB, and RB onto KGMG–AC was slightly higher than that of the AC. The adsorption equilibrium constant (KL) value (0.02 L/mg) of KGMG–AC for NB was similar to that of AC (0.03 L/mg). However, the saturated adsorption amount (Q0) of KGMG–AC (368 mg/g) for NB was slightly larger than that of AC (354 mg/g). The saturated adsorption amounts of MB and RB on KGMG–AC were 302 and 259 mg/g, respectively. On the other hand, a high molecular weight humic acid was not adsorbed by KGMG–AC. Thus, entrapping AC into KGMG resulted in the selective adsorption. Therefore, this study could show that KGMG–AC was a new environmental friendly adsorbent that can be easily prepared, used, and recovered in environments. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40542.

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“…The pollutants described above have different values for the specific gravity, for example, that of crude oil is lighter than that of water, and that of nitrobenzene is heavier than that of water. Therefore, crude oil floats on the surface of water, while nitrobenzene sinks to the bottom of water 1) . Most of water-soluble substances might exist homogeneously in the body of water after a sufficient period.…”

Section: Introductionmentioning

confidence: 99%