scholarly journals REMOVAL OF POTENTIALLY TOXIC METALS FROM AQUEOUS SOLUTION USING TETRA PAK INDUSTRIAL WASTE AS BIOSORBENTS

2021 ◽  
Vol 37 (3) ◽  
pp. 3-7
Author(s):  
A. Muhammadi ◽  
A.H. Lahori ◽  
V. Vambol ◽  
S. Vambol
Keyword(s):  
Toxic Metals ◽  
Industrial Waste ◽  
Raw Materials ◽  
Anthropogenic Activities ◽  
Low Cost ◽  
Polluted Water ◽  
Potentially Toxic Metals ◽  
Two Samples ◽  
Functional Features ◽  
Tetra Pak

Potentially toxic metals (PTMs) contamination in the water bodies had been a worldwide challenge. Industrialization and anthropogenic activities have produce and discharge wastes comprising organic and inorganic pollutants into the water resources making them hazardous and threatening human health and the environment. Packaging technology for food and beverages such as juices, milk, and other liquids using paper packets, generally known as Tetra Pak, has resulted in the generation of too much waste in the world in recent decades. On the one hand, it appears that the building of composites from Tetra Pak trash allows for maximum recycling of these materials, while on the other hand, the inclusion of Kraft paper, Al, and polyethylene in the packet composition can improve the functional features of the goods. Tetra pak packaging is comprised of three different types of raw materials: cellulose (75 %), low density polyethylene (LDPE) (20 %), and aluminium (5 %).The present research aimed to assess the potential of Tetra Pak industrial waste as biosorbents to remove PTMs such as lead (Pb), Nickle (Ni), and Copper (Cu) from PTMs-artificial contaminated water. Approximately, 0.05 mg/L concentration for Ni, 0.027 mg/L for Pb, and 0.05 mg/L for Cu were artificially added in the water bodied to assess the adsorption efficacy amended with two samples of waste Tetra Pak OTP (sample product1) and DOTP (sample product 2) as biosorbents. The obtained results showed that the maximum Ni adsorption recovery was received by (83 % with DOTP), Pb 52 % with OTP and Cu 32 % with OTP as bio-sorbent amendments. Overall, the present study indicated that the remove of PTMs from dilute aqueous solutions and using industrial waste material as easily available and low-cost sorbent, that can be successfully used to remove pollutants from multi-metal polluted water.

Sugar and alcohol industrial waste as low-cost adsorbents: application in situ for remediation of potentially toxic metals

2017 ◽  
Vol 15 (9) ◽  
pp. 1991-1998 ◽  
Author(s):  
O. S. Santos ◽  
J. C. C. Santos ◽  
A. P. B. Silva ◽  
L. C. Oliveira ◽  
J. B. Carmo ◽  
...  
Keyword(s):  
Toxic Metals ◽  
Industrial Waste ◽  
Low Cost ◽  
Potentially Toxic Metals

scholarly journals BIOMASS CHARACTERIZATION CUPUAÇU BARK (THEOBROMA GRANDIFLORUM) AND AÇAÍ FRUIT STONE (EUTERPE OLERACEA) BIOMASS FOR THE PURPOSE OF REMOVING POTENTIALLY TOXIC METALS FROM CHEMICAL LABORATORY EFFLUENTS

2021 ◽  
Keyword(s):  
Toxic Metals ◽  
Low Cost ◽  
Liquid Waste ◽  
Point Of Zero Charge ◽  
Euterpe Oleracea ◽  
Toxic Heavy Metals ◽  
Potentially Toxic Metals ◽  
Chemical Laboratory ◽  
Good Efficiency ◽  
Biomass Characterization

Laboratory effluents are sources of contamination that contribute to serious environmental impacts, especially liquid waste containing potentially toxic heavy metals, when improperly disposed of. A low-cost and good-efficiency alternative for removing metal ions is biosorption. The objective of this work was to characterize the biomass of cupuaçu husk and seed of the fruit of the açaí palm in natura and modified with sodium hydroxide through the parameters: pH in water and KCl, acidic and basic groups and the point of zero charge. It was noticed that the studied characteristics affirm that both in natura and modified biomasses are capable of absorbing potentially toxic metals.

scholarly journals Briquetting of Biomass for Low Cost Fuel using Farm Waste, Cow Dung and Cotton Industrial Waste

2019 ◽  
Vol 8 (3) ◽  
pp. 8349-8353
Keyword(s):  
Industrial Waste ◽  
Energy Content ◽  
Raw Materials ◽  
Low Cost ◽  
Cow Dung ◽  
Hydraulic Pressure ◽  
Good Energy ◽  
Industrial Boiler ◽  
Materials Used ◽  
Groundnut Shell

The ultimate source of energy for crucial activities like cooking, heating and parboiling process is burning wood and other agricultural products. Due to growing populations utilizing resource of combustible biomass materials will finally result in insufficiency of those materials until certain measures are taken to secure them. It mainly focuses on the minimization of pollution especially land, water and air and to avoid the deforestation mainly for many fuels for burning. The product taken is the by-product, which is obtained from the residue left after letting the cotton industrial waste for reuse. The raw materials used are cassava waste, coconut shell, groundnut shell, cotton waste and cow dung with thirty different mix ratios. The briquettes were made without using any binder. Using hydraulic pressure with UTM given to produce the briquettes are 5.0 kN/cm 2 , 5.6 kN/cm2 and 6.0 kN/cm2 . Good energy content has been obtained when the pressure for producing briquettes at 5.6 kN/cm2 .These briquettes are mainly used for industrial boiler running and cooking purpose.

scholarly journals Cadmium Removal Using Magnetized Chitosan Beads From Wastewater

2019 ◽  
Vol 2 (1) ◽  
Keyword(s):  
Toxic Metals ◽  
Magnetic Beads ◽  
Anthropogenic Activities ◽  
Low Cost ◽  
Research Work ◽  
Land Development ◽  
Industrial Effluents ◽  
Cadmium Removal ◽  
Chitosan Beads ◽  
Cadmium Metal

The deterioration of our water resources due to indiscriminate discharge of untreated industrial effluents containing toxic metals, various dyes, untreated sewage and other anthropogenic activities like urbanization, population growths and land development along river basin have become major concerns throughout the world. There is a need for the appropriate method for removal of heavy toxic metals from the drinking water. In this research work, magnetic chitosan beads have been synthesized for the removal cadmium metal ions from wastewater. The magnetic beads were characterized by using FTIR, TGA and EDAX techniques. Particle and crystal size were determined using scanning electron microscopy, SEM and X-ray diffraction, XRD techniques respectively. The various parameters taken were pH (2- 12), temperatures (40-600 C) and contact time (1-4h) for this research work. The results showed that the optimal adsorbent dosage was 0.04g from the working range of 0.01-0.04g respectively. The RL values calculated were within the range of 0˂RL ˂1 showing the adsorption process is favourable one. Different isotherm constants for Cd (II) at the equilibrium were calculated from the Langmuir, Freundlich and Temkinisotherms. Importance of magnetic beads lies with the removal of cadmium from wastewater due to low cost, environment friendly and its regeneration for further use.

Application of Calophyllum Inophyllum Seed Husk as a Low-cost Biosorbent for Efficient Removal of Heavy Metals from Wastewater for a Safer Environment

2019 ◽  
Vol 6 (2) ◽  
pp. 159-172
Author(s):  
Adeniyi A. Adenuga ◽  
John Adekunle O. Oyekunle ◽  
Olufemi D. Amos
Keyword(s):  
Heavy Metals ◽  
Toxic Metals ◽  
Low Cost ◽  
Simultaneous Removal ◽  
Potentially Toxic Metals ◽  
Calophyllum Inophyllum ◽  
Adsorption Capacities ◽  
Removal Of Heavy Metals ◽  
Seed Husk ◽  
Wastewater Samples

Background: Effective treatment of wastewaters for potentially toxic metals especially at affordable cost is critical to the well-being of man and the environment. Objective: This study optimized the conditions for the application of Calophyllum inophyllum seed husk as biosorbent for simultaneous removal of heavy metals from aqueous solutions and investigated the removal efficiencies of the biosorbent for Pb2+ and Cd2+ in wastewater samples. Methods: The dependence of the adsorption process on pH, adsorbent dosage, temperature, initial metal ions concentration, and contact time was evaluated in a batch system by determining the degree of adsorption of Pb2+ and Cd2+ in simulated industrial wastewater before application of the biosorbent for metals cleanup in industrial and domestic wastewater samples. Results: The results showed that charring and microwave irradiation of the biosorbent produced the best performance. The pH of the aqueous solution played a crucial role in the performance of the biosorbent. Optimum adsorption for both metals occurred within the first 60 minutes of the process at pH value around 9. Kinetic studies of the process gave good correlation coefficients for a pseudo-second order kinetic model with adsorption data that fitted well into the Freundlich and Langmuir models but with Freundlich isotherm displaying better fitness. The adsorption capacities of the biosorbent were 42.19 and 22.47 mg/g for Pb2+ and Cd2+, respectively. Conclusion: The study concluded that the good adsorption capacities of Calophyllum inophyllum seed husk for the metals is an indications of its considerable potential as a low-cost biosorbent for simultaneous removal of potentially toxic metals from wastewaters.

scholarly journals Contents of Potentially Toxic Metals and Magnetic Susceptibility of Soils Along a Rural – Urban – Rural Gradient in Bratislava City (Slovakia)

2016 ◽  
Vol 24 (1) ◽  
pp. 25-37
Author(s):  
Lucia Lachká ◽  
Edgar Hiller ◽  
Ondrej Ďurža
Keyword(s):  
Magnetic Susceptibility ◽  
Toxic Metals ◽  
Anthropogenic Activities ◽  
Pollution Load Index ◽  
City Centre ◽  
Potentially Toxic Metals ◽  
Mean Values ◽  
Urban Rural ◽  
The Mean ◽  
The City

AbstractThe concentrations of potentially toxic metals (As, Cd, Cu, Hg, Pb, Zn and Fe) and the values of magnetic susceptibility in surface soils were measured along NW-SE gradient in Bratislava city (rural – urban – rural soils). The results indicate that both the contents of potentially toxic metals (PTMs) and the values of magnetic susceptibility decrease with increasing distance from the city centre in both directions. Urban soils are enriched mainly in Cu, Hg, Pb and Zn. Their elevated concentrations in soils within the city are due to accumulation from anthropogenic activities. There was a statistically significant and positive correlation between the mean values of Tomlinson pollution load index (PLI) and the mean values of magnetic susceptibility in soil samples. This correlation shows that the monitoring of magnetic properties of soils can be used as a rapid and non-destructive tool for the effective determination of environmental pollution in urbanized regions affected by anthropogenic activities.

Study of the Cu(II) removal from aqueous solutions by adsorption on titania

2013 ◽  
Vol 12 (3) ◽  
pp. 239-247
Keyword(s):  
Heavy Metals ◽  
Ionic Strength ◽  
Toxic Metals ◽  
Low Cost ◽  
Lateral Interaction ◽  
Tio2 Surface ◽  
High Toxicity ◽  
Removal Of Heavy Metals ◽  
Solution Parameters ◽  
Kinetics Of

The removal of heavy metals from wastewaters is a matter of paramount importance due to the fact that their high toxicity causes major environmental pollution problems. One of the most efficient, applicable and low cost methods for the removal of toxic metals from aqueous solutions is that of their adsorption on an inorganic adsorbent. In order to achieve high efficiency, it is important to understand the influence of the solution parameters on the extent of the adsorption, as well as the kinetics of the adsorption. In the present work, the adsorption of Cu(II) species onto TiO2 surface was studied. It was found that the adsorption is a rapid process and it is not affected by the value of ionic strength. In addition, it was found that by increasing the pH, the adsorbed amount of Cu2+ ions and the value of the adsorption constant increase, whereas the value of the lateral interaction energy decreases.

Bamboo Waste-based Bio-composite Substance: An application for Low-cost Construction Materials

2020 ◽  
Vol 4 (1) ◽  
pp. 41-48
Author(s):  
Teodoro Astorga Amatosa ◽  
Michael E. Loretero
Keyword(s):  
Composite Materials ◽  
Sea Water ◽  
Raw Materials ◽  
Low Cost ◽  
Construction Materials ◽  
Single Layer ◽  
High Strength ◽  
Green Technology ◽  
Experimental Medium ◽  
Natural Treatment

Bamboo is a lightweight and high-strength raw materials that encouraged researchers to investigate and explore, especially in the field of biocomposite and declared as one of the green-technology on the environment as fully accountable as eco-products. This research was to assess the technical feasibility of making single-layer experimental Medium-Density Particleboard panels from the bamboo waste of a three-year-old (Dendrocalamus asper). Waste materials were performed to produce composite materials using epoxy resin (C21H25C105) from a natural treatment by soaking with an average of pH 7.6 level of sea-water. Three different types of MDP produced, i.e., bamboo waste strip MDP (SMDP), bamboo waste chips MDP (CMDP) and bamboo waste mixed strip-chips MDP (MMDP) by following the same process. The experimental panels tested for their physical-mechanical properties according to the procedures defined by ASTM D1037-12. Conclusively, even the present study shows properties of MDP with higher and comparable to other composite materials; further research must be given better attention as potential substitute to be used as hardwood materials, especially in the production, design, and construction usage.

Low-Cost Raw Materials Synthesized Na 2.9375PS 3.9375Cl 0.0625 Solid Electrolyte

2019 ◽  
Author(s):  
Yu Wang ◽  
Nachuan Yang ◽  
Yi Shuai ◽  
Yunpeng Zhang ◽  
Kanghua Chen
Keyword(s):  
Solid Electrolyte ◽  
Raw Materials ◽  
Low Cost
Sign in / Sign up

Export Citation Format

Share Document