Results 21 to 30 of about 14,817,441 (297)

Kinetic and isotherm studies for nickel ions’ biosorption by jute fabrics [PDF]

Journal of the Serbian Chemical Society, 2021
Raw jute fabric was chemically modified with 1 % NaOH for 30 min, 17.5 % NaOH for 5 min or with 0.7 % NaClO2 for 30 and 60 min to study the influence of changes in the chemical composition of the fabrics and quantity of carboxyl groups on the biosorption
Ivanovska Aleksandra, Pavun Leposava, Dojčinović Biljana, Kostić Mirjana   +3 more
doaj   +1 more source

Removal of Ni (II), Mn (II) and Zn (II) from crude yellow cake aqueous solution by cross-linked chitosan and polyvinyl alcohol

Egyptian Journal of Petroleum, 2021
The removal of Ni (II), Mn (II) and Zn (II) from crude yellow cake onto chitosan cross-linked by Epichlorohydrin (CS-ECH) and polyvinyl alcohol (PVA) were investigated in nitrate solutions. The influence of contact time, pH, temperature and initial metal
Huda Amer Ibrahiem, Wagdy.I. El- Dougdoug, Hassan H. H. Hefni, Abdallah A. El-Sawy, Hesham.M. Kamal, Khalid.F. Mahmoud   +5 more
doaj   +1 more source

Pseudo-Smarandache Functions of First and Second Kind [PDF]

, 2011
In this paper we define two kinds of pseudo-Smarandache functions. We have investigated more than fifty terms of each pseudo-Smarandache function.
S.T.Rathod, A.S.Muktibodh, Muktibodh, A.S., Rathod, S.T.   +3 more
core   +1 more source

Assessment of Chemically Modified Lignocellulose Waste for the Adsorption of Cr (VI)

Revista Facultad de Ingeniería, 2019
Chromium (Cr(VI)) presents carcinogenic and mutagenic effects in living beings. Biosorption is an alternative to conventional technologies for the treatment of waste water.
Candelaria Tejada-Tovar, M.Sc., Adriana Herrera-Barros, Ph. D., Angel Villabona-Ortíz, M.Sc.   +2 more
doaj   +1 more source

Cr(VI) Sorption from Aqueous Solution: A Review

Applied Sciences, 2020
Hexavalent chromium (Cr(VI)) in water systems is a major hazard for living organisms, including humans. The most popular technology currently used to remove Cr(VI) from polluted water is sorption for its effectiveness, ease of use, low cost and ...
Angelo Fenti, Simeone Chianese, Pasquale Iovino, Dino Musmarra, Stefano Salvestrini   +4 more
doaj   +1 more source

Application of Non-Linear Kinetic and Isotherm Model for Investigation of Cod Removal from Tapioca Liquid Waste Onto Modified Lampung Natural Zeolite

Science and Technology Indonesia, 2021
The experimental data analysis of tapioca liquid waste onto modified Lampung natural zeolite using non-linear regression models is limited. The adsorption data were analyzed with nine kinetic models (the pseudo-first-order, the pseudo-second-order, the ...
Didik Supriyadi, Darmansyah, Ratna Puspita Sari, Amna Citra Farhan   +3 more
doaj   +1 more source

Adsorption Kinetics of Reactive Dyes on Ash from Town Heating Plant

Archives of Environmental Protection, 2014
In order to investigate the mechanism of adsorption of reactive dyes from the textile industry on ash from heating plant produced by brown coal combustion, some characteristic sorption constants are determined using Langergren adsorption equations for ...
Djordjevic Dragan, Stojiljkovic Dragan, Smelcerovic Miodrag   +2 more
doaj   +1 more source

Biosorptive removal of cobalt (II) ion from wastewater using pomegranate peel activated carbon as biosorbent [PDF]

Journal of the Serbian Chemical Society
Cobalt is used to link the components during integrated circuits (ICs) fabrication. Cobalt ion is common in chemical mechanical planarization (CMP) spent slurry.
Sushma, Keshav Amit, Ramachandran Manivannan   +2 more
doaj   +1 more source

Pseudo-first-order and pseudo-second-order kinetic equation.

, 2016
Pseudo-first-order and pseudo-second-order kinetic equation.
Liangyu Pei (3221091), Shulian Xie (430625), Shengli Shi (3221094), Jia Feng (430626), Qi Liu (33068), Junping Lv (720614)   +5 more
core   +1 more source

Study of kinetic and adsorption isotherm of ibuprofen on mcm-41 synthesized with rice husk [PDF]

Pharmaciana
Rice husk is one of the abundant wastes, especially in agricultural countries. Rice husk waste has a silica content of 95.80%, where the silica content can be utilized to make an adsorbent. One of the adsorbents that can be made is Mobil Composition of
Olyvia Azzahra Putri Hartono, Frida Octavia Purnomo, Dyah Ayuwati Waluyo, Tunas Alam, Mohammad Jihad Madiabu   +4 more
doaj   +1 more source