scholarly journals Batch Adsorption Studies on the Removal of Lead(II) from Aqueous Solution Using Typha Angustata L.

2017 ◽  
Vol 6 (2) ◽  
Keyword(s):  
Aqueous Solution ◽  
Batch Adsorption ◽  
Adsorption Studies ◽  
Typha Angustata

scholarly journals Adsorption Studies of Chromium by Using Low Cost Adsorbents

Our Nature ◽  
2013 ◽  
Vol 11 (1) ◽  
pp. 11-16 ◽  
Author(s):  
N. Gandhi ◽  
D. Sirisha ◽  
K.B. Chandra Sekhar
Keyword(s):  
Heavy Metals ◽  
Aqueous Solution ◽  
Contact Time ◽  
Low Cost ◽  
Water Bodies ◽  
Batch Adsorption ◽  
Toxic Heavy Metals ◽  
Adsorption Studies ◽  
Chromium Vi ◽  
Aqueous Streams

The presence of toxic heavy metals such as chromium (VI) contaminants in aqueous streams, arising from the discharge of untreated metal containing effluents into water bodies, is one of the most important environmental problems. Adsorption is one of the effective techniques for chromium (VI) removal from wastewater. In the present study, adsorbent was prepared from low cost adsorbents and studies were carried out for chromium (VI) removal. Batch adsorption studies demonstrated that the adsorbents had significant capacity to adsorb the chromium from aqueous solution. It was found that the adsorption increased with increase in contact time and adsorbent dosage. An attempt was made to study mixed algae as an adsorbent for removal of chromium (VI).DOI: http://dx.doi.org/10.3126/on.v11i1.8238 Our Nature Vol.11(1) 2013: 11-16?

Copper contaminated wastewater – An evaluation of bioremedial options

2016 ◽  
Vol 27 (1) ◽  
pp. 84-95 ◽  
Author(s):  
Geetha Varma V. ◽  
Anil K. Misra
Keyword(s):  
Aqueous Solution ◽  
Adsorption Capacity ◽  
Metal Ion ◽  
Freundlich Isotherm ◽  
Copper Removal ◽  
Batch Adsorption ◽  
Maximum Adsorption Capacity ◽  
Paddy Straw ◽  
Adsorption Phenomenon ◽  
Adsorption Studies

The potential of papaya leaf powder and paddy straw powder for copper(II) removal was evaluated from aqueous solution via column and batch adsorption studies. Batch adsorption studies were performed to determine the contact time effects, biosorbent dosage, pH and initial concentration of metal ion on adsorption capacity. Results showed approximately 90% to 95% of copper removal using both the adsorbents from the solution. As the amount of biosorbent increases, the biosorption capacity also increases. Findings indicate that pH is an important factor for metal ion biosorption and 7.0 is the optimum pH for copper removal. For explaining the mechanism of copper distribution into the solid and liquid phases in batch studies, Freundlich isotherm and Langmuir adsorption isotherm model are used and findings illustrate that adsorption phenomenon is better represented by Freundlich isotherm. Maximum adsorption capacity of copper was calculated as 24.63 mg/g and 37.17 mg/g for papaya powder and for paddy straw powder, respectively, by using Langmuir model. The adsorption phenomenon complies with the pseudo-second-order rate equation. Using packed bed column, the biosorbents’ ability of copper(II) ions removal from aqueous solution was also examined and an S shape profile was obtained for the breakthrough curve. For practical applications, both the adsorbents can be effectively used for wastewater treatment owing to their high capacity of adsorption of heavy metals at very low cost.

Adsorption studies of Malachite green on 5-sulphosalicylic acid doped tetraethoxysilane (SATEOS) composite material

RSC Advances ◽  
2015 ◽  
Vol 5 (112) ◽  
pp. 92788-92798 ◽  
Author(s):  
Sozia Ahad ◽  
Nasarul Islam ◽  
Arshid Bashir ◽  
Suhail-ul Rehman ◽  
Altaf Hussain Pandith
Keyword(s):  
Aqueous Solution ◽  
Composite Material ◽  
Malachite Green ◽  
Batch Adsorption ◽  
Adsorption Studies ◽  
Sulphosalicylic Acid

Batch adsorption studies are reported for the removal of Malachite green from an aqueous solution using 5-sulphosalicylic acid doped tetraethoxysilane (SATEOS) composite material, prepared in our laboratory previously.

scholarly journals Separation of acid blue 25 from aqueous solution using water lettuce and agro-wastes by batch adsorption studies

2018 ◽  
Vol 8 (2) ◽  
Author(s):  
Muhammad Raziq Rahimi Kooh ◽  
Muhammad Khairud Dahri ◽  
Linda B. L. Lim ◽  
Lee Hoon Lim ◽  
Chin Mei Chan
Keyword(s):  
Aqueous Solution ◽  
Batch Adsorption ◽  
Water Lettuce ◽  
Adsorption Studies ◽  
Acid Blue 25 ◽  
Acid Blue

Batch Adsorption Studies on the Removal of Acid Blue 25 from Aqueous Solution Using Azolla pinnata and Soya Bean Waste

2015 ◽  
Vol 41 (7) ◽  
pp. 2453-2464 ◽  
Author(s):  
Muhammad Raziq Rahimi Kooh ◽  
Muhammad Khairud Dahri ◽  
Linda B. L. Lim ◽  
Lee Hoon Lim
Keyword(s):  
Aqueous Solution ◽  
Soya Bean ◽  
Batch Adsorption ◽  
Azolla Pinnata ◽  
Adsorption Studies ◽  
Acid Blue 25 ◽  
Acid Blue

Adsorption Studies of Basic Green 4 from Aqueous Solution on Ca2+Exchanged Clay

2011 ◽  
Vol 48 (5) ◽  
pp. 366-374 ◽  
Author(s):  
F. K. Bangash ◽  
S. Alam ◽  
M. Khan
Keyword(s):  
Aqueous Solution ◽  
Adsorption Studies

Removal of Cd(II) from Water System Using Novel Biosorbent Derived from Persimmon Fallen Leaves

2015 ◽  
Vol 1130 ◽  
pp. 685-688
Author(s):  
Rui Yi Fan ◽  
Qing Ping Yi ◽  
Qing Lin Zhang ◽  
Zheng Rong Luo
Keyword(s):  
Aqueous Solution ◽  
Metal Ions ◽  
Adsorption Capacity ◽  
Water System ◽  
Raw Material ◽  
Batch Adsorption ◽  
Diospyros Kaki ◽  
Cadmium Metal ◽  
Fallen Leaves ◽  
Adsorption Desorption

A biosorbent was prepared by treating the persimmon (Diospyros kaki Thunb.) fallen leaves with sodium hydroxide (NaOH). The NaOH concentration and stirring period for the preparation of the biosorbent were adjusted to optimise the Cd(I) adsorption capacity of the biosorbents. Removal of highly toxic Cadmium metal ions from water system using the optimal biosorbent named ‘NPFL’ was investigated using a mimic industrial column. The result showed that NPFL could remove Cd(II) in large quantities from aqueous solution with coexisting metal ions. The raw material, NPFL and Cd(II) loaded NPFL were characterized by SEM-EDS. The reusability of NPFL was also studied by batch adsorption-desorption test.

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