Removal of microcystin-LR from aqueous solution using Moringa oleifera Lam. seeds

Water Science and Technology : a Journal of the International Association on Water Pollution Research
Rabia YasminMuhammad Kashif

Abstract

The removal of microcystin-LR from aqueous solution using native Moringa oleifera Lam. seeds powder (MSP) and chemically pretreated M. oleifera Lam. seed powder (PMSP) was investigated in terms of equilibrium and kinetics. Optimum sorption conditions were determined as a function of pH (2-7), adsorbent dosage (0.25-1.0 g/L), initial concentration of microcystin-LR (15-120 mg/L) and contact time (15-360 minutes). The high values of regression constant, 0.98 (MSP) and 0.99 (PMSP), revealed that sorption of microcystin-LR was best fitted by the pseudo second order kinetic model. The equilibrium study was best fitted by the Freundlich model with both the adsorbents. The maximum sorption capacity by MSP and PMSP for microcystin-LR was 85.5 ± 1.1 mg/g and 92.49 ± 2.4 mg/g respectively. Fourier transform infrared spectroscopy showed the major involvement of carboxyl and hydroxyl groups for microcystin-LR sequestration either by complexation or ion exchange mechanism. The contribution of the adsorption phenomenon was confirmed by scanning electron microscopic analysis of microcystin-LR loaded and unloaded PMSP. Thus, the HCl-pretreated M. oleifera Lam. seed powder proved to be the pre-eminent biosorbent for removal of microcystin-LR fr...Continue Reading

References

Aug 1, 2006·Journal of Hazardous Materials·Winn-Jung HuangYung-Ling Cheng
Nov 4, 2010·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Cleide S T AraújoNivia M Melo Coelho
Jul 31, 2013·Environment International·Sylvain MerelOlivier Thomas
Jan 18, 2014·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Ana Paula MeneghelHerbert Nacke
Sep 13, 2014·Environmental Science & Technology·Wenjun JiangVirender K Sharma
Jan 22, 2015·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Kiran AftabFozia Anjum
Feb 16, 2015·Water Research·Arash ZamyadiMichèle Prévost
Jan 12, 2017·Harmful Algae·Xuexiang HeHarold W Walker

❮ Previous
Next ❯

Citations

Apr 16, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Shulian WangZhu Li

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Journal of Environmental Sciences (China)
Chunping YangShenglian Luo
Journal of Environmental Sciences (China)
Megat Hanafiah Megat Ahmad KamalWan Ngah Wan Saime
Water Science and Technology : a Journal of the International Association on Water Pollution Research
Moein Safari, Salman Ahmady-Asbchin
Water Science and Technology : a Journal of the International Association on Water Pollution Research
Mohammad Ali ZazouliRazieh Salmani Malekkolae
© 2022 Meta ULC. All rights reserved