Removal of inorganic mercury from water by bituminous coal

Pandey, Mahesh P.; Chaudhuri, Malay

doi:10.1016/0043-1354(82)90127-0

Cited by 25 publications

(7 citation statements)

References 3 publications

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“…Tel. : +20 2 6822991; fax: +20 2 6822991. already reported for the removal of Hg(II) include fly ash [6], coal [7][8][9], tree bark [10], human hair [11], fertilizer waste [12], used tea leaves [13], waste rubber [14], rice-husk ash [15], flax shive [16] and oil shale [17].…”

Section: Introductionmentioning

confidence: 99%

Removal of mercury(II) from wastewater using camel bone charcoal

Hassan

Awwad

Aboterika

2008

Journal of Hazardous Materials

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Section: Introductionmentioning

confidence: 99%

Removal of mercury(II) from wastewater using camel bone charcoal

Hassan

Awwad

Aboterika

2008

Journal of Hazardous Materials

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“…The extent of desorption is of engineering significance because of the possible release of sorbed metals into solution as a result of changes in solution composition, pH, ionic strength, and temperature. Low levels of desorption of mercury and chromium ions from activated carbon on account of decreased solution pH were reported (Kim, 1976;Pandey and Chaudhuri, 1980;and Pandey and Chaudhuri, 1982). The extent of cadmium desorption increased with de creasing pH (Huang and Smith, 1981).…”

mentioning

confidence: 99%

Kinetics of sorption and desorption of copper(II) and lead (II) on activated carbon

Wilczak¹,

Keinath²

1993

Water Environment Research

127

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The rate of sorption of copper(II) and lead(II) onto activated carbons Nuchar SA and Filtrasorb 400 was observed to occur rapidly at the outset, followed by a slow and prolonged sorption. This indicates that previous sorption studies conducted for short equilibration periods likely underestimated the actual capacity of activated carbon for heavy metals. Although copper and lead ions desorbed from the activated carbon surface rapidly, the rate of desorption of lead was slower, prevailing over several days. Sorption of copper and lead ions on Nuchar SA was found to be fully reversible.zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA Water Environ. Res.,zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA 65, 238 (1993).

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“…These adsorbents include many materials that have been tested for cadmium ions removal from wastewater such as algae [ 63 ], coal fly ash [ 64 ], bone char [ 65 ], rice husk [ 66 ], yeast biomass [ 67 ], seaweed waste [ 68 ], sawdust [ 69 , 70 ], rice polish [ 71 ], spent grain [ 72 ] and brown marine microalgae [ 73 ]. Other investigated adsorbents have proved to be effective for certain heavy metal ions such mercury Hg(II), which is removed by flash ash [ 74 ], coal [ 70 , 75 ] and rice-husk ash [ 76 ]. Copper Cu(II) ions were found to be efficiently removed by maple sawdust [ 7 ] and soil and clay [ 77 ].…”

Section: Adsorbents For Heavy Metals Removalmentioning

confidence: 99%

Sawdust for the Removal of Heavy Metals from Water: A Review

2021

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The threat of the accumulation of heavy metals in wastewater is increasing, due to their abilities to inflict damage to human health, especially in the past decade. The world’s environmental agencies are trying to issue several regulations that allow the management and control of random disposals of heavy metals. Scientific studies have heavily focused on finding suitable materials and techniques for the purification of wastewaters, but most solutions have been rejected due to cost-related issues. Several potential materials for this objective have been found and have been compared to determine the most suitable material for the purification process. Sawdust, among all the materials investigated, shows high potential and very promising results. Sawdust has been shown to have a good structure suitable for water purification processes. Parameters affecting the adsorption mechanism of heavy metals into sawdust have been studied and it has been shown that pH, contact time and several other parameters could play a major role in improving the adsorption process. The adsorption was found to follow the Langmuir or Freundlich isotherm and a pseudo second-order kinetic model, meaning that the type of adsorption was a chemisorption. Sawdust has major advantages to be considered and is one of the most promising materials to solve the wastewater problem.

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Removal of inorganic mercury from water by bituminous coal

Cited by 25 publications

References 3 publications

Removal of mercury(II) from wastewater using camel bone charcoal

Removal of mercury(II) from wastewater using camel bone charcoal

Kinetics of sorption and desorption of copper(II) and lead (II) on activated carbon

Sawdust for the Removal of Heavy Metals from Water: A Review

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