Pretreatment of wastewater from acrylonitrile–butadiene–styrene (ABS) resin manufacturing by microelectrolysis

Lai, Bo; Zhou, Yuexi; Qin, Hongke; Wu, Changyong; Cui-cui, Pang; Yu, Long; Xu, Jixian

doi:10.1016/j.cej.2010.12.089

Cited by 110 publications

(52 citation statements)

References 18 publications

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“…Because the electric energy is converted from chemical energy of ZVI, micro-electrolysis is much less expensive than conventional electrolysis with an external power supply. The half-cell reactions can be represented as [23]:…”

mentioning

confidence: 99%

Enhanced dark fermentative hydrogen production by zero-valent iron activated carbon micro-electrolysis

Zhang

2015

International Journal of Hydrogen Energy

105

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confidence: 99%

Enhanced dark fermentative hydrogen production by zero-valent iron activated carbon micro-electrolysis

Zhang

2015

International Journal of Hydrogen Energy

105

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“…According to previous studies [13,30], enhanced-ZVI achieved the best performance when the volumetric ratio of ZVI to GAC was 1:1. Hence, the same volumes of ZVI and GAC were thoroughly mixed first and then transferred to the column reactors.…”

Section: Methodsmentioning

confidence: 99%

Long-term performance of enhanced-zero valent iron for drinking water treatment: A lab-scale study

Liu

Gernjak

Keller

2017

Chemical Engineering Journal

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Abstract:Former studies have shown that enhanced-zero valent iron (ZVI) could effectively remove various contaminants. The present study evaluates for the first time the long-term performance of enhanced-ZVI to remove natural organic matter (NOM), an important water quality parameter in drinking water. Lab-scale flow-through experiments showed that averagely 7-14% dissolved organic carbon (DOC) and 6-15% ultraviolet absorbance at 254 nm (UV 254 ) reduction could be achieved by enhanced-ZVI in the first 10,000 bed volumes filtration when a 0.36 or 1.8 mins empty bed contact time (EBCT) was applied. After 10,000-bed volumes, the enhanced-ZVI bed became passivated. However, sulphuric acid was able to regenerate the passivated enhanced-ZVI bed, recover the capacity of enhanced-ZVI in removing NOM, and hence make the best use of the available ZVI. The acidic rinsing solution containing dissolved iron was suitable as a supplemental source of iron for coagulation. In addition, during the long-term experiments, the biofilters following enhanced-ZVI (1.8 min EBCT) removed more NOM than biofilters without any pre-treatment. This could be explained by the formation of biodegradable organic matter (BDOC) during the enhanced-ZVI process and the precipitation of iron in the biofilters. Based on these findings, a novel water treatment train, incorporating enhanced-ZVI with periodical regeneration, biofiltration, and coagulation, was proposed and evaluated.

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“…[15,16] The functional groups present in Eupatorium adenophorum were investigated by the FT-IR analyser (FTIR-650, China). The FTIR spectra were in the range of 4000-400 cm −1 .…”

Section: Methodsmentioning

confidence: 99%

Study on adsorption of Cu(II)–Cr(VI) binary system by carbonized Eupatorium adenophorum

Chen

Song

Yang

2016

Separation Science and Technology

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We first report a mechanism study on the adsorption of Cu(II)-Cr(VI) binary mixture by a novel low-cost adsorbent, carbonized Eupatorium adenophorum. The influences by pH value, dosage, initial concentration, temperature, and adsorption time on its performance to absorb copper and chromium were investigated. The experimental data were fitted according to the Langmuir and Freundlich adsorption isotherm models, the pseudo-first-order kinetics, the pseudo-second-order kinetics, and the intra-particle diffusion model. The results indicated that when the reaction system was with its pH = 5, the dosage of carbonized Eupatorium adenophorum was 0.1 g, the adsorption time was 30 min, and the temperature was 25°C; the adsorption capacities for Cu(II) and Cr(VI) reached 27.62 mg/g and 9.68 mg/g, respectively. The process of carbonized Eupatorium adenophorum to absorb Cr(VI) is also accompanied by redox reactions. The Langmuir model and the pseudo-second-order model can better fit the experimental data. Observation by fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM) found no significant change of functional groups before and after the adsorption by carbonized Eupatorium adenophorum, and this adsorption process is mainly a physical adsorption. ARTICLE HISTORY

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Pretreatment of wastewater from acrylonitrile–butadiene–styrene (ABS) resin manufacturing by microelectrolysis

Cited by 110 publications

References 18 publications

Enhanced dark fermentative hydrogen production by zero-valent iron activated carbon micro-electrolysis

Enhanced dark fermentative hydrogen production by zero-valent iron activated carbon micro-electrolysis

Long-term performance of enhanced-zero valent iron for drinking water treatment: A lab-scale study

Study on adsorption of Cu(II)–Cr(VI) binary system by carbonized Eupatorium adenophorum

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