Removal and Recovery of Phosphorus from Water by Means of Adsorption onto Orange Waste Gel and Pectic Acid Gel Loaded with Zirconium

Pectic acid contained in some fruits like orange and apple is natural chelating polymeric material, exhibiting excellent adsorption behavior for some cationic metal ions including toxic heavy metals such as lead and copper. In addition, it also exhibits excellent adsorption behavior for some hazardous inorganic anionic species like phosphorus, arsenic and fluoride by loading some high valence cationic metal ions like zirconium(IV) in advance.For the practical application to the removal of these hazardous inorganic elements from various waste water at cheap cost, orange juice residue was employed instead of pure pectic acid. Orange juice residue just after juicing was activated by saponification with small amount of calcium hydroxide to prepare the sorbent.Some hazardous cationic species like lead(II), copper(II) and cadmium(II) were effectively adsorbed on this sorbent, while toxic anionic species like phosphate, arsenate, arsenite and fluoride were also effectively adsorbed on zirconium(IV)-loaded sorbent. Keywords: Orange waste, Pectic acid, Natural chelating material, Heavy metals, Arsenic, Phosphorus, Adsorption, Removal, Water

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Fasciaton of Pectate Elementary Fibrils

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100070746 ◽

1973 ◽

Vol 31 ◽

pp. 60-61

Author(s):

George F. Leeper

Keyword(s):

Acid Treatment ◽

Carbon Film ◽

Final Concentration ◽

Cellulose Microfibrils ◽

Pectic Acid ◽

Elementary Fibrils

Polysaccharide elementary fibrils are usually fasciated into microfibrils of from one hundred to a few hundred Angstroms wide. Cellulose microfibrils when subjected to acid treatment dissociate into component elementary fibrils. For pectic acid it was observed that variations in pH could cause a change in the fasciation of the elementary fibrils.Solutions of purified pectic acid and sodium phosphotungtate were adjusted to various pH levels with NaOH or HCl and diluted to give a final concentration of 0.5 and 1% for the polysaccharide and negative stains respectively. Micrographs were made of the samples after drying on a carbon film covered grid. The average number of elementary fibrils was determined by counting the number of elementary fibrils in each fascicle intersected by lines drawn across the micrograph.

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Nonsurgical Treatment of Abnormal Eyelid Position Using Hyaluronic Acid Gel

Journal of the Korean Ophthalmological Society ◽

10.3341/jkos.2012.53.3.357 ◽

2012 ◽

Vol 53 (3) ◽

pp. 357

Author(s):

Seok Joong Chung ◽

Hyun Min Shin ◽

Helen Lew

Keyword(s):

Hyaluronic Acid ◽

Nonsurgical Treatment ◽

Acid Gel ◽

Hyaluronic Acid Gel

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Salt Resistance Improvement of Polyacrylic Acid Gel by Activated Carbon Complex and Its Swelling Mechanism

ACTA AGRONOMICA SINICA ◽

10.3724/sp.j.1095.2012.00087 ◽

2012 ◽

Vol 29 (2) ◽

pp. 166

Author(s):

Shuping JIN ◽

Guoren YUE ◽

Feng ZHANG ◽

Lei FENG ◽

Xinghai YU

Keyword(s):

Activated Carbon ◽

Polyacrylic Acid ◽

Salt Resistance ◽

Swelling Mechanism ◽

Acid Gel ◽

Resistance Improvement

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Does Adjunctive Use of Hyaluronic Acid Improve Clinical Outcome of Mechanical Therapy for Cases of Mild Aggressive Periodontitis

Revista de Chimie ◽

10.37358/rc.17.3.5513 ◽

2017 ◽

Vol 68 (3) ◽

pp. 612-614

Author(s):

Andreea A. Pogan ◽

Roxana Buzatu ◽

Dan Onisei ◽

Doina Onisei

Keyword(s):

Hyaluronic Acid ◽

Antimicrobial Effect ◽

Aggressive Periodontitis ◽

Gingival Tissue ◽

Potential Benefits ◽

Therapeutic Properties ◽

Acid Gel ◽

Mechanical Therapy ◽

Improve Clinical Outcome ◽

Hyaluronic Acid Gel

Hyaluronic acid is an essential component of the periodontal ligament matrix and it has shown a number of clinical therapeutic properties, especially an anti-inflammatory effect on the gingival tissue. The aim of this study is to evaluate the potential benefits of using hyaluronic acid gel in topical application as an adjunct to mechanical therapy in the management of aggressive periodontitis. Results show an obvious improvement of clinical parameters, especially regarding the evolution of healing of the gingival tissue after periodontal therapy. Nevertheless, the antimicrobial effect needs to be proven in further studies.

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CLINICAL APPLICATION OF RADIESSE AND HYALURONIC ACID GEL FOR TREATMENT OF PAPILLAE DEFICIENCIES IN THE ESTHETIC ZONE

Egyptian Dental Journal ◽

10.21608/edj.2017.75003 ◽

2017 ◽

Vol 63 (1) ◽

pp. 533-545

Author(s):

Heba Shawky ◽

Mahinour Darwish

Keyword(s):

Hyaluronic Acid ◽

Clinical Application ◽

Acid Gel ◽

Hyaluronic Acid Gel

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Metals Removal and Recovery by Arthrobacter sp. Biomass

Water Science & Technology ◽

10.2166/wst.1992.0683 ◽

1992 ◽

Vol 26 (9-11) ◽

pp. 2149-2152 ◽

Cited By ~ 6

Author(s):

A. Grappelli ◽

L. Campanella ◽

E. Cardarelli ◽

F. Mazzei ◽

M. Cordatore ◽

...

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Industrial Wastes ◽

Gram Negative Bacteria ◽

Gram Negative ◽

Real Possibility ◽

Metals Removal ◽

Metal Capture ◽

Accumulation Of Metals ◽

Removal And Recovery

Experiments on the real possibility of employing microorganisms to capture inorganic polluting substances, mainly heavy metals from urban and industrial wastes, are running using bacteria biomass. Many strains of Arthrobacter spp., gram-negative bacteria, diffused in the soil also inacondition of environmental stresses, have been proved to be particulary effective in heavy metal capture (Cd, Cr, Pb, Cu, Zn). The active and passive processes in accumulation of metals by bacteria were studied. Our experiments have been done on fluid biomass and on a membrane both for practical use and for an easy recovery.

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