Biosorption of copper(II) and cobalt(II) from aqueous solutions by crab shell particles

"Use of Plant Biomass for Removal of Malachite Green From Aqueous Solution and Optimization Using Central Composite Design (Ccd) "

“…MG is used in aquaculture to regulate the fish disease and it is used as a fungicide and parasiticide also. MG is applied in the cloth, leather and acrylic industries and also broadly operated in the aquaculture as a biocide to control infections of fish 3,4 . When MG in the freshwater, the fish display a toxic disorder causing the mammalian cells toxic in nature and further affect the different body parts of fish.…”

Fe (ii) adsorption on Ucides Cordatus crab shells

“…Nowadays some resources are being applied such as biomass used in extraction of chitin and chitosan, in the industry of food and cosmetic, source of calcium in medicaments, soil additive, in promotion of plant growth, raw material in civil construction and as adsorbent of water pollution, as cobalt, copper, nickel, and others. [1][2][3][4][5][6] In Brazil, the crab species most abundant is Ucides cordatus, commonly known as Uçá crab. The crab shell is a very resistant material in which calcium carbonate is the main constituent and chitin associated to protein and mineral salts.…”

“…The crab shell is a very resistant material in which calcium carbonate is the main constituent and chitin associated to protein and mineral salts. 4 The advantage of the crab shell as sorbent is the low cost and the fact that there is no need of any sophisticated preparation. Commonly the shells are washed in acid solution or water and dried under the sunlight.…”

The ability of crab and cockle shell to adsorb lead and chromium from industrial effluent

“…Studied by [6] [7], the result of removing heavy metals increases by process of shaking. Because the shaking process enhance heavy metals bind with adsorbent pore.…”