Breakwater construction: an effective method for industrial waste utilization

1999 ◽  
Vol 6 (2) ◽  
pp. 145-154 ◽  
Author(s):  
DULCY M. ABRAHAM ◽  
M.H. JOANNE YEH
Keyword(s):  
Industrial Waste ◽  
Waste Utilization ◽  
Industrial Waste Utilization

scholarly journals Industrial Waste Utilization of Carbon Dust in Sustainable Cementitious Composites Production

Materials ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3295
Author(s):  
Mohammad R. Irshidat ◽  
Nasser Al-Nuaimi
Keyword(s):  
Compressive Strength ◽  
Industrial Waste ◽  
Cement Mortar ◽  
Waste Utilization ◽  
Cementitious Composites ◽  
X Ray Diffraction ◽  
Sem Images ◽  
Compact Structure ◽  
X Ray ◽  
Industrial Waste Utilization

This paper experimentally investigates the effect of utilization of carbon dust generated as an industrial waste from aluminum factories in cementitious composites production. Carbon dust is collected, characterized, and then used to partially replace cement particles in cement mortar production. The effect of adding different dosages of carbon dust in the range of 5% to 40% by weight of cement on compressive strength, microstructure, and chemical composition of cement mortar is investigated. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray fluorescence (XRF) analysis are used to justify the results. Experimental results show that incorporation of carbon dust in cement mortar production not only reduces its environmental side effects but also enhances the strength of cementitious composites. Up to 10% carbon dust by weight of cement can be added to the mixture without adversely affecting the strength of the mortar. Any further addition of carbon dust would decrease the strength. Best enhancement in compressive strength (27%) is achieved in the case of using 5% replacement ratio. SEM images show that incorporation of small amount of carbon dust (less than 10%) lead to produce denser and more compact-structure cement mortar.

scholarly journals Aluminium leaching from red muds for their complexing reprocessing

2018 ◽  
Vol 80 (3) ◽  
pp. 317-322 ◽  
Author(s):  
A. V. Boyarintsev ◽  
M. M. Aung ◽  
K. Yi. Aung ◽  
S. I. Stepanov
Keyword(s):  
Aqueous Solutions ◽  
Atmospheric Pressure ◽  
Industrial Waste ◽  
Waste Utilization ◽  
Secondary Precipitation ◽  
Residual Aluminum ◽  
Red Muds ◽  
Industrial Waste Utilization ◽  
Aluminium Leaching ◽  
Toxic Industrial Waste

Complexing processing of «red muds» (R.M.) - waste of bauxite reprocessing by the Bayer's method, is one of the important tasks of toxic industrial waste utilization. Studied the possibility of aluminum leaching from the R.M. which content reach 14 %, received from Bogoslovsky aluminum plant of JSC «Siberian-Urals Aluminium Company» by aqueous solutions of NaOH. The process was carried out at atmospheric pressure and temperatures near to the boiling point of leaching solutions with the utilization of the residual alkali. The time’s dependence of the aluminum leaching degree from the R.M. by aqueous solutions of NaOH passes through the maximum due to the formation of secondary precipitation of aluminum. The cause of secondary sedimentation is the interaction of silicon with aluminum with formation of insoluble aluminosilicates, for example, Nа2Аl2Si2O8·2Н2O. The conditions of leaching, under which the formation of stable aluminate solutions during the time do not form of secondary precipitations were established. The maximum achieved values of the aluminum leaching degree in autoclave-free conditions was reach 20-25 %. The removal of alkali and part of aluminum under the first stage of complexing processing of R.M. leads to their enrichment in iron. The cakes from aluminum leaching and next carbonate scandium leaching can be used for pyrometallurgical recovery of iron and slag, in which untreated elements are passed, including residual aluminum, scandium, sum of rare earth elements, titanium and zirconium. A significant decrease in the volume of slag opens more opportunities for further isolation their components by acidic methods.

The potential for agro-industrial waste utilization using oleaginous yeast for the production of biodiesel

Fuel ◽  
2014 ◽  
Vol 123 ◽  
pp. 33-42 ◽  
Author(s):  
D.E. Leiva-Candia ◽  
S. Pinzi ◽  
M.D. Redel-Macías ◽  
Apostolis Koutinas ◽  
Colin Webb ◽  
...  
Keyword(s):  
Industrial Waste ◽  
Oleaginous Yeast ◽  
Waste Utilization ◽  
Industrial Waste Utilization

Mechanical - Insulating Method of Household and Industrial Waste Utilization

2021 ◽  
pp. 431-441
Author(s):  
Sviatoslav Kurnosov ◽  
Liubomyr Ropyak ◽  
Andriy Velychkovych ◽  
Tetiana Pryhorovska ◽  
Vasyl Vytvytskyi
Keyword(s):  
Industrial Waste ◽  
Waste Utilization ◽  
Industrial Waste Utilization

scholarly journals Environmental Projects in the SCO Territories – Ash Damps Utilization Case Study

2015 ◽  
pp. 79-81
Author(s):  
S. Tikhomirov
Keyword(s):  
Member State ◽  
Industrial Waste ◽  
Waste Utilization ◽  
Environmental Projects ◽  
Industrial Waste Utilization

The possibilities of ecological cooperation within SCO countries are considered, a case of ash damps industrial waste utilization being as example. The actual cooperation between Russia and India in this field can turn into one of the joint economic projects for SCO if India becomes a full SCO member-state.

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