Quantitative analysis of Cu and Co adsorbed on fish bones via laser-induced breakdown spectroscopy

Detachment of Cu (II) and Co (II) ions from synthetic wastewater via adsorption on Lates niloticus fish bones using LIBS and XRF

“…Adsorption isotherms and kinetics studies were reported to account for fish bones as an effective adsorbent of copper and cobalt from wastewater. Our resultsReference has been inserted in the text differ from the previously published research [19] mainly by focusing on the kinetics of the adsorption process and demonstrating the potential of LIBS technique as an environmental diagnostic technique by following up the concentration of the adsorbed copper and cobalt on fish bone.…”

“…Each LIBS spectrum represents the average of 25 spectra taken as 5 spectra at 5 different positions on each fish bone sample target [16] . Detailed study of the experimental parameters of the present setup can be found in our previous work [19] . The optimum experimental conditions for LIBS analysis such as delay time (t d ) which is the time interval between firing the laser and triggering the detector (ICCD camera), and gate width (Δt) which is the time during which the detector is sensitive, were 1500 ns, and 2500 ns, respectively.…”

“…It is also possible to use LIBS in situ with portable systems because of its simplicity and compactness of the required equipment contrary to other techniques such as Atomic Absorption Spectroscopy or Inductively Coupled Plasma Optical Emission Spectroscopy. LIBS has significant potential in the environmental applications, for tracing pollutants and for the detection of heavy metals contamination [17] , [18] , [19] . On the other hand, XRF as a well-established spectrochemical analytical technique offers some unique advantages as being fully non-destructive, requiring minimal sample preparation, simple and suitable for in situ use with portable equipment.…”

“…Because of the simplicity of XRF analysis, it has been widely used for numerous environmental applications [20] . The limit of detection of both LIBS and XRF for metals is typically in the ppm range [19] , [20] , [21] . The main goal of this research work is to confirm the adsorption efficiency of fish bones for heavy metals.…”

Valorization of a Good Bioceramic from Moroccan Waste Fish Bone by a Heat Treatment Method

“…The inorganic phase could be used as a cheap source of calcium phosphate (also termed as hydroxyapatite HA or tricalcium phosphate TCP) contributing at the same time to give added value to fishing by-products as well as reducing the undesirable environmental impact. Treated fishbone and other fish waste have been utilized in food industry [4], biofuel production [5], medical applications because HA and TCP are biocompatible, bioactive, non-toxic, non-inflammatory and non-immunogenic [6], and as a natural and low cost heavy metal sorbent [7][8][9][10]. Fishbone is a natural resource of P and Ca, and actually is the natural supply of HAp that can be partially transformed into β-tri-calcium phosphate (β -TCP) when calcined above 600°C [11].…”