Activated carbon-containing alginate adsorbent for the simultaneous removal of heavy metals and toxic organics

Park, Hyun Gyu; Kim, Tae Won; Chae, Myeong Yun; Yoo, Ik‐Keun

doi:10.1016/j.procbio.2007.06.016

Cited by 167 publications

(76 citation statements)

References 25 publications

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“…The results revealed the possible biodegradation of crude oil by adsorbed or entrapped cells of the four bacterial strains as revealed by many investigations [9,11,[21][22][23][24][25][26]. The oil-degrading ability of the immobilized bacterial consortium was compared by Nunal et al [24] using cocopeat, rice hull powder, and sodium alginate capsules.…”

Section: Effect Of Immobilization On Biodegradation Of Crude Oil By Bmentioning

confidence: 95%

Biodegradation of Industrial Oil-Polluted Wastewater in Egypt by Bacterial Consortium Immobilized in Different Types of Carriers

El-Borai¹,

Eltayeb²,

Mostafa³

et al. 2016

Pol. J. Environ. Stud.

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Section: Effect Of Immobilization On Biodegradation Of Crude Oil By Bmentioning

confidence: 95%

Biodegradation of Industrial Oil-Polluted Wastewater in Egypt by Bacterial Consortium Immobilized in Different Types of Carriers

El-Borai¹,

Eltayeb²,

Mostafa³

et al. 2016

Pol. J. Environ. Stud.

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“…Amongst them, few traditional worldwide processes are precipitation [26][27][28] ion exchange, 12,[29][30] ultrafiltration, ,reverse osmosis, 5,33-34 nanofiltration, 35 electrodialysis, 36-37 coagulation, [38][39][40][41] flocculation, [42][43][44] flotation, 45 electrochemical process, [46][47] and Adsorption. [48][49][50][51] However, out of above technology, some have disadvantage like, production of secondary waste (sludge), toxicity, high operation and maintenance costs, skilled personal requirement, reduced efficiency, required excess land and expenses for treatment and management of acid mine drainage, which bound the use of the majority of developed technologies. [52][53][54] However the adsorption process relatively appears to be a suitable method for treatment of acid mine …”

Section: Introductionmentioning

confidence: 99%

Treatment of Acid Mine Drainage Using a Sandstone Column

2017

RJC

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Acid mine drainage (AMD) or Acid rock drainage (ARD) from mining industry poses worldwide severe environmental problems including India also. In this study, heavy metal removal was tested in AMD samples collected from the Gorbi abandoned coal mine (India), having iron concentrations of 75 mg/L. Sandstone was collected from mine sites and converted into powders form and used as low-cost adsorbent in a column to treat acid mine drainage (AMD) obtained from the inactive Gorbi opencast coal mines (Singrauli coalfields, NCL). The pH value of the pit water sample improved from 2.48 to 3.90, along with the removal of, 100 % total iron, Lead (Pb), Cadmium (Cd), 71% of the electrical conductivity, 73% total dissolved solids and 50% of the salinity.

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“…Adsorption is very economical and effective process (Park et al 2007;Dubey and Shiwani 2012). Adsorption has advantages over the other methods because of its simple design with a sludge-free environment and can involve low investment in terms of both initial cost and land required.…”

Section: Introductionmentioning

confidence: 99%

Application of dried plant biomass as novel low-cost adsorbent for removal of cadmium from aqueous solution

Dubey¹,

Mishra²,

Singhal³

2013

Int. J. Environ. Sci. Technol.

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Heavy metals are a threat to human health and ecosystem. These days, great deal of attention is being given to green technologies for purification of water contaminated with heavy metal ions. Biosorption is one among such emerging technologies, which utilizes naturally occurring waste materials to sequester heavy metals from wastewater. Cadmium has hazardous impact on living beings; therefore, its removal through green and economical process is an important task. The aim of the present study was to utilize the locally available Portulaca oleracea plant biomass as an adsorbent for cadmium removal from aqueous solution. The biomass was obtained after drying and grinding the portulaca leaves and stem. No chemical treatment was done on the adsorbent so that it remained green in a true sense. Batch experiments were performed at room temperature. The critical parameters studied were effects of pH, contact time, initial metal ion concentration and adsorbent dose on the adsorption of cadmium. The maximum adsorption was found to be 72 %. The kinetic data were found to best fit the pseudo-secondorder equation. High adsorption rates were obtained in the initial 45 min, and adsorption equilibrium was then gradually achieved in about 100 min. Adsorption increased with increase in pH for a range 2 and 6. The equilibrium adsorption results closely followed both the Langmuir and Freundlich isotherms. The values of constants were calculated from isotherms. Results indicated that portulaca plant biomass could be developed as a potential material to be used in green water treatment devices for removal of metal ions.

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Activated carbon-containing alginate adsorbent for the simultaneous removal of heavy metals and toxic organics

Cited by 167 publications

References 25 publications

Biodegradation of Industrial Oil-Polluted Wastewater in Egypt by Bacterial Consortium Immobilized in Different Types of Carriers

Biodegradation of Industrial Oil-Polluted Wastewater in Egypt by Bacterial Consortium Immobilized in Different Types of Carriers

Treatment of Acid Mine Drainage Using a Sandstone Column

Application of dried plant biomass as novel low-cost adsorbent for removal of cadmium from aqueous solution

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