Removal of Pb2+, Cu2+, and Fe3+ from battery manufacture wastewater by chitosan produced from silkworm chrysalides as a low-cost adsorbent

Paulino, Alexandre Tadeu; Santos, Lídia Brizola; Nozaki, Jorge

doi:10.1016/j.reactfunctpolym.2007.10.028

Cited by 109 publications

(39 citation statements)

References 22 publications

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“…al. (2008) also reported that the characteristic peak for chitosan was in range of 2-Theta=20-23 14 . Due to the formation of crosslinked chitosan and incorporation of eggshell to crosslinked chitosan, a decrease in peak intensity at 2q=20 was observed in diffractogram of epichlorohydrin crosslinked chitosan/eggshell composite (Fig.…”

Section: X-ray Diffraction (Xrd)mentioning

confidence: 90%

Effect of Eggshell on Mechanical Properties of Epichlorohydrin Cross-linked Chitosan/Eggshell Composites

Rahmi¹,

Marlina²,

Nisfayati³

2017

Orient. J. Chem

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The effect of eggshell particles on the mechanical properties of epichlorohydrin crosslinked chitosan/eggshell composites had been studied. The content of eggshell particles in each composites was varied from 2.5 to 13.4% (w/w). The tensile strength was 60% improved, compared to the control chitosan. The composite with 13.4% (w/w) content of eggshell particles showed the optimum tensile strength. The XRD patterns exhibited the decrease in peak intensity of chitosan at 2q = 20 o due to the addition of epichlorohydrin as a crosslinking agent of chitosan and incorporation of eggshell particles to crosslinked chitosan. The peak intensity at 2q = 44 o was increased due to the addition of eggshell particles. Scanning elecron microscopy images confirmed the eggshell particles was dispersed into chitosan matrix.

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Section: X-ray Diffraction (Xrd)mentioning

confidence: 90%

Effect of Eggshell on Mechanical Properties of Epichlorohydrin Cross-linked Chitosan/Eggshell Composites

Rahmi¹,

Marlina²,

Nisfayati³

2017

Orient. J. Chem

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“…Significant variability in the data and platykurtic distribution were also found as described elsewhere (Júnior, 2004). responsible for lead contamination include the petroleum, paint, dye, ceramic, arms and vehicle battery industries (Paulino et al, 2008). Lead can enter the environment naturally through volcanic emissions and weathering (Mather, 2015).…”

Section: Metal Concentrationsmentioning

confidence: 99%

Environmental Characteristics and Water Quality of a Drainage Basin Impacted by Human Activities

Oliveira

Becegato

Barcarolli

et al. 2017

EMSD

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The aim of the present study was to determine the environmental characteristics and water quality of a drainage basin impacted by human activities in order to obtain quantitative information for helping the development of environmental management politics of soils, lakes, rivers and water resources. Physicochemical properties and concentrations of metals were determined in different water samples. Dissolved oxygen, pH, turbidity, color, ammonia, phosphorus, phenol, copper, silver, lead, cadmium and iron differed from levels considered acceptable by international regulations, indicating potential environmental pollution due to land occupation and the improper disposal of domestic, industrial and agricultural waste. The leaching of pollutants from the soil to bodies of water was also found. Total dissolved solids, salinity, suspended solids, nitrate, nitrite and zinc levels were lower than the limits imposed by international regulations, but have been increasing over time. Urbanization, industrialization and agricultural processes in drainage basins significantly affect the natural characteristics of the environment, leading to an increase in the concentrations of pollutants and a reduction in the quality of water, plants and soils. As pollutants in drainage basins generally enter into soils, rivers, lakes and ocean, it is necessary to obtain quantitative information about the human impacts in the water quality for developing environmental management politics aiming to preserve the water resources.

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“…Nevertheless, they must be determined quantitatively. [24][25][26][27] In the last years, we have studied the toxic effects of various heavy metals on fish. 1 Therefore, the methods developed here have been widely applied to the determination of metals in ecotoxicological investigations conducted by Universidade Estadual de Maringá and Universidade Estadual de Campinas.…”

Section: Parameters For the Determination Of Al 3+ By Swvmentioning

confidence: 99%

Square Wave Voltammetry in the Determination of Ni2+ and Al3+ in Biological Samples

et al. 2008

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In this contribution, the amounts of Ni (nickel) and Al (aluminum) in tilapias (Oreochromis niloticus) were determined using square wave voltammetry (SWV) with glassy carbon working microelectrode with a mercury thin film, platinum counter electrode, and Ag/AgCl reference electrode. Ni was studied through the formation of the dimethylglyoxime-Ni (Ni-DMG) complex, while Al was studied through the formation of the Alizarin R-Al complex. The detection limit found for Ni-DMG and Alizarin R-Al complexes were 1.70 ¥ 10 -7 and 1.0 ¥ 10 -8 mol L -1 , respectively. The voltammetric anodic curves for the Alizarin R-Al complex were recorded over the potential range from -0.8 to -0.05 V while the voltammetric cathodic curve for the Ni-DMG complex was recorded over the potential range from -0.7 to -1.2 V. These methods detected low concentrations of Ni and Al in biological samples efficiently.

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Removal of Pb2+, Cu2+, and Fe3+ from battery manufacture wastewater by chitosan produced from silkworm chrysalides as a low-cost adsorbent

Cited by 109 publications

References 22 publications

Effect of Eggshell on Mechanical Properties of Epichlorohydrin Cross-linked Chitosan/Eggshell Composites

Effect of Eggshell on Mechanical Properties of Epichlorohydrin Cross-linked Chitosan/Eggshell Composites

Environmental Characteristics and Water Quality of a Drainage Basin Impacted by Human Activities

Square Wave Voltammetry in the Determination of Ni2+ and Al3+ in Biological Samples

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