Oxidation of Cr(III) in tannery sludge to Cr(VI): Field observations and theoretical assessment

Apte, Amita D; Verma, Shubham; Tare, Vinod; Bose, Purnendu

doi:10.1016/j.jhazmat.2005.02.010

Cited by 145 publications

(67 citation statements)

References 11 publications

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“…The used for tanning leather products [51], is a large contributor of Cr pollution in India [52]. Chromated copper arsenate used as a wood preservative [53], could be probable reasons for the high Cr deposition in Site 6.…”

Section: Heavy Metals In Sedimentsmentioning

confidence: 99%

Heavy Metal Accumulation Potential of Some Wetland Plants Growing Naturally in the City of Kolkata, India

Jha¹,

Samal²,

Santra³

et al. 2016

AJPS

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Freshwaters are not only used locally in many developing countries but they are often over exploited for domestic purposes, agriculture and disposal of industrial wastes which result in an overload of excess nutrients, harmful chemicals and heavy metals. Plant species together with sediments and water samples collected from eleven aquatic water bodies in the vicinity of industrial units in Kolkata were studied for their potential to uptake Pb, Cd and Cr under field conditions. Cd and Cr concentrations in the sediments were higher than background values considered to be toxic.Alternanthera philoxeroides and Eichhornia crassipes were the two invasive species present, with the former being more widely distributed. Among native plants, Ipomoea aquatica was the most abundant. Metal uptake in the plants differed among species, tissues and sites. Pb and Cd accumulation in root tissues for all plants in most sites suggested an exclusion strategy for metal tolerance. Since I. aquatica is widely consumed in many parts of SE Asia, its metal content should be checked before use since it was found to efficiently translocate both Pb and Cd from roots to shoots.The potential of A. philoxeroides as a metal excluder needs to be explored further since it translocates less to its shoots as compared to E. crassipes and I. aquatica.

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Section: Heavy Metals In Sedimentsmentioning

confidence: 99%

Heavy Metal Accumulation Potential of Some Wetland Plants Growing Naturally in the City of Kolkata, India

Jha¹,

Samal²,

Santra³

et al. 2016

AJPS

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“…Chromium is commonly used in various industries such as metallurgical, refractory, chemical pigments, electroplating and tanning [5,6]. One of the major emerging problems of the tanning industry is the disposal of chromium-contaminated sludge that is produced as byproduct of the wastewater treatment [5].…”

Section: Introductionmentioning

confidence: 99%

“…One of the major emerging problems of the tanning industry is the disposal of chromium-contaminated sludge that is produced as byproduct of the wastewater treatment [5]. The world production of chromium is in the order of 10 7 tons per year; 60% -70% is used in alloys, including stainless steel, and 15% is used in chemical industrial processes, mainly leather tanning, pigments and electroplating [7,8].…”

Section: Introductionmentioning

confidence: 99%

The influence of old leather tannery district on chromium contamination of soils, water and plants

Wolińska¹,

Stępniewska²,

Wlosek³

2013

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“…Wastes coming from chromium related industries, such as tanneries, electroplating and mining activities contribute to most of the chromium contamination; however, in many countries tanning industry is the main recognized Cr polluting industry (Apte et al, 2005;Tariq et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Effect of chromium contaminated soil on arbuscular mycorrhizal colonisation of roots and metal uptake by Plantago lanceolata

Estaún

Cortés

Velianos

et al. 2010

Span. j. agric. res.

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Industrial practices are the primary causes for the accumulation of chromium in the environment, an element considered as a toxic heavy metal when present in high concentrations. The beneficial contribution of arbuscular mycorrhizal fungi (AMF) to plant nutrition and growth has been acknowledged, however, results of heavy metal uptake by plants under mycorrhizal symbiosis vary. The AMF Glomus intraradices (BEG 72) was used with Plantago lanceolata as a host plant in three experiments. In the first one, devised to assess the plant tolerance to Cr(III) in the soil, four levels of chromium concentration were applied in a sterile soil mix, placed in pots with inoculated and non inoculated plant treatments. Plant survival, shoot weight and AMF root colonisation were measured. In the second experiment which was designed in order to determine the effect of the symbiosis on the chromium uptake, similar treatments were used, and in addition, the heavy metal plant tissue content was measured and the bioconcentration factors calculated. In the third experiment the chromium uptake from an industrial chromium waste contaminated soil was assessed using treatments with and without the AMF. Results showed that chromium has a severe impact on the survival of non inoculated plants, however, plants inoculated with AMF in moderately contaminated soil, perform in terms of growth and survival rate, as well as the non inoculated plants in soil with no chromium added, suggesting a buffering effect of the AMF by decreased intake of the toxic element in the roots and its translocation to the shoot.Additional key words: Glomus intraradices, heavy metal tolerance, phytoremediation. ResumenEfecto de la contaminación del suelo con cromo en la colonización de las raíces con micorrizas arbusculares y en la absorción de metales pesados de Plantago lanceolata Prácticas industriales, tales como el cromado, el curtido de pieles, tratamientos de la madera y la minería, son las principales causas de la acumulación en el medio ambiente del cromo, un elemento considerado como metal pesado tóxico cuando está presente en grandes concentraciones. Se ha estudiado ampliamente la contribución de los hongos de la micorriza arbuscular (HMA) a la nutrición vegetal y al crecimiento de las plantas y se han descrito distintos efectos de la micorrización en la captación de metales pesados por las plantas. El HMA Glomus intraradices (BEG 72) fue utilizado con Plantago lanceolata como planta hospedante para evaluar la respuesta a la contaminación con Cr(III). Los ensayos se realizaron en suelo esterilizado al que se añadieron tres concentraciones de Cr(III) (100 mg kg -1 , 200 mg kg -1 , 400 mg kg -1 ) y en un suelo industrial contaminado con vertidos de cromo. Los resultados mostraron que la acumulación de cromo tiene graves repercusiones en la supervivencia de las plantas no micorrizadas, sin embargo, las plantas inoculadas con el HMA en un suelo moderadamente contaminado, tienen un crecimiento y una tasa de supervivencia comparables a los de las plantas n...

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Oxidation of Cr(III) in tannery sludge to Cr(VI): Field observations and theoretical assessment

Cited by 145 publications

References 11 publications

Heavy Metal Accumulation Potential of Some Wetland Plants Growing Naturally in the City of Kolkata, India

Heavy Metal Accumulation Potential of Some Wetland Plants Growing Naturally in the City of Kolkata, India

The influence of old leather tannery district on chromium contamination of soils, water and plants

Effect of chromium contaminated soil on arbuscular mycorrhizal colonisation of roots and metal uptake by Plantago lanceolata

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