scholarly journals Building Eco-Blocks through the Use of Solid Waste

2021 ◽  
pp. 22-24
Author(s):  
Ashish R. Kale ◽  
Keyword(s):  
Fly Ash ◽  
Solid Waste ◽  
Natural Resource ◽  
Compression Strength ◽  
Waste Materials ◽  
Open Surface ◽  
Block Processing ◽  
Concrete Blocks ◽  
Resource Costs ◽  
Solid Block

India is buried under waste stacks as more than 1.50 lakhs ofsolid waste (MT) per day is produced. Worse, nearly 90% of the total volume is collected (135,000 tonnes daily). Almost 15,000 MT of waste remains exposed each day, which leads to a “severe” amount of contamination of some 55 lakh of MT of solid waste disposed of each year in open surface. Just 20% (27 000 tonnes per day) of the total waste collected and 80% (1 08 000 tonnes per day) was disposed of. The remaining 80% is disposed of on site. Progress in the management of solid waste has resulted in materials that replace conventional materials, including bricks, blocks,tiles, aggregates, ceramics, cement, lime, soil, timber and paint. In this research, Eco blocks are generated using waste materials like fly-ash and waste using aggregates of cement and yard. It optimizes materials with various combinations and defines the compression strength of the eco-blocks. Days of 7.71, 5.8 and 9.10 N/mm2 are compressive strengths of 14 and 28. The strength of ecological blocks is equal to or above that of the local company’s regular concrete blocks. The study showed that solid waste can be used for solid block processing. We also analyzed how debris can be recycled to find an alternative to reduce natural resource costs and use

scholarly journals Building Eco-Blocks through the Use of Solid Waste

2021 ◽  
Vol 1 (1) ◽  
pp. 22-24
Author(s):  
Ashish R. Kale
Keyword(s):  
Fly Ash ◽  
Solid Waste ◽  
Natural Resource ◽  
Compression Strength ◽  
Waste Materials ◽  
Open Surface ◽  
Block Processing ◽  
Concrete Blocks ◽  
Resource Costs ◽  
Solid Block

India is buried under waste stacks as more than 1.50 lakhs ofsolid waste (MT) per day is produced. Worse, nearly 90% of the total volume is collected (135,000 tonnes daily). Almost 15,000 MT of waste remains exposed each day, which leads to a "severe" amount of contamination of some 55 lakh of MT of solid waste disposed of each year in open surface. Just 20% (27 000 tonnes per day) of the total waste collected and 80% (1 08 000 tonnes per day) was disposed of. The remaining 80% is disposed of on site. Progress in the management of solid waste has resulted in materials that replace conventional materials, including bricks, blocks,tiles, aggregates, ceramics, cement, lime, soil, timber and paint. In this research, Eco blocks are generated using waste materials like fly-ash and waste using aggregates of cement and yard. It optimizes materials with various combinations and defines the compression strength of the eco-blocks. Days of 7.71, 5.8 and 9.10 N/mm2 are compressive strengths of 14 and 28. The strength of ecological blocks is equal to or above that of the local company’s regular concrete blocks. The study showed that solid waste can be used for solid block processing. We also analyzed how debris can be recycled to find an alternative to reduce natural resource costs and use.

Opportunities for Composites from Recycled Wood Based Resources

1992 ◽  
Vol 266 ◽  
Author(s):  
Theodore H. Wegner ◽  
John A. Youngquist ◽  
Roger M. Rowell
Keyword(s):  
Fly Ash ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Wood Fiber ◽  
Pulp Mill ◽  
Waste Stream ◽  
Waste Materials ◽  
Demolition Waste ◽  
Waste Wood ◽  
Agriculture Wastes

AbstractA reduction is urgently needed in the quantities of industrial and municipal solid waste materials that are currently being landfilled. Major components of municipal solid waste include waste wood, paper, agriculture wastes, and other biomass fibers. In 1990, there were approximately 80 million tons of 6,000 different paper and paperboard products and 5.8 million tons of wood in the municipal solid waste stream. There are also potential millions of tons of wood fiber in timber thinnings, industrial wood waste, demolition waste, pallets, and pulp mill sludges. These materials offer great opportunities as recycled ingredients in wood-based composites. This paper discusses possibilities for manufacturing selected composites from these materials as well as materials which coexist with the wood-based resources such as plastics, fly ash, and gypsum.

THE EFFECT OF FLY ASH IN GEOPOLYMER CONCRETE POLES – A THRIVING SOLID WASTE DISPOSAL MEASURE FOR ECO-FRIENDLY ENVIRONMENT

2018 ◽  
Vol 8 (2) ◽  
pp. 7
Author(s):  
R. THENMOZHI ◽  
VADIVEL T.SENTHIL ◽  
S. MUTHURAMALINGAM ◽  
V. PADMAPRIYA ◽  
◽  
...  
Keyword(s):  
Fly Ash ◽  
Solid Waste ◽  
Waste Disposal ◽  
Geopolymer Concrete ◽  
Solid Waste Disposal

A mini-review of heavy metal recycling technologies for municipal solid waste incineration fly ash

2021 ◽  
pp. 0734242X2110039
Author(s):  
Huan Wang ◽  
Fenfen Zhu ◽  
Xiaoyan Liu ◽  
Meiling Han ◽  
Rongyan Zhang
Keyword(s):  
Fly Ash ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Waste Incineration ◽  
Electrochemical Process ◽  
Chemical Extraction ◽  
Air Pollution Control ◽  
Municipal Solid Waste Incineration ◽  
Mswi Fly Ash ◽  
Metal Recycling

This mini-review article summarizes the available technologies for the recycling of heavy metals (HMs) in municipal solid waste incineration (MSWI) fly ash (FA). Recovery technologies included thermal separation (TS), chemical extraction (CE), bioleaching, and electrochemical processes. The reaction conditions of various methods, the efficiency of recovering HMs from MSWI FA and the difficulties and solutions in the process of technical development were studied. Evaluation of each process has also been done to determine the best HM recycling method and future challenges. Results showed that while bioleaching had minimal environmental impact, the process was time-consuming. TS and CE were the most mature technologies, but the former process was not cost-effective. Overall, it has the greatest economic potential to recover metals by CE with scrubber liquid produced by a wet air pollution control system. An electrochemical process or solvent extraction could then be applied to recover HMs from the enriched leachate. Ongoing development of TS and bioleaching technologies could reduce the treatment cost or time.

scholarly journals Ternary Mixes of Self-Compacting Concrete with Fly Ash and Municipal Solid Waste Incinerator Bottom Ash

2020 ◽  
Vol 11 (1) ◽  
pp. 107
Author(s):  
B. Simões ◽  
P. R. da Silva ◽  
R. V. Silva ◽  
Y. Avila ◽  
J. A. Forero
Keyword(s):  
Fly Ash ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Bottom Ash ◽  
Chloride Diffusion ◽  
Waste Incinerator ◽  
Chloride Diffusion Coefficient ◽  
Municipal Solid Waste Incinerator ◽  
Self Compacting Concrete ◽  
Solid Waste Incinerator

This study aims to evaluate the potential of incorporating fly ash (FA) and municipal solid waste incinerator bottom ash (MIBA) as a partial substitute of cement in the production of self-compacting concrete mixes through an experimental campaign in which four replacement levels (i.e., 10% FA + 20% MIBA, 20% FA + 10% MIBA, 20% FA + 40% MIBA and 40% FA + 20% MIBA, apart from the reference concrete) were considered. Compressive and tensile strengths, Young’s modulus, ultra-sonic pulse velocity, shrinkage, water absorption by immersion, chloride diffusion coefficient and electrical resistivity were evaluated for all concrete mixes. The results showed a considerable decline in both mechanical and durability-related performances of self-compacting concrete with 60% of substitution by MIBA mainly due to the aluminium corrosion chemical reaction. However, workability properties were not significantly affected, exhibiting values similar to those of the control mix.

scholarly journals An Experimental Study on the Melting Solidification of Municipal Solid Waste Incineration Fly Ash

2021 ◽  
Vol 13 (2) ◽  
pp. 535
Author(s):  
Jing Gao ◽  
Tao Wang ◽  
Jie Zhao ◽  
Xiaoying Hu ◽  
Changqing Dong
Keyword(s):  
Heavy Metals ◽  
High Temperature ◽  
Fly Ash ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Liquid Slag ◽  
Melting Process ◽  
Waste Incineration ◽  
Municipal Solid Waste Incineration ◽  
Mswi Fly Ash

Melting solidification experiments of municipal solid waste incineration (MSWI) fly ash were carried out in a high-temperature tube furnace device. An ash fusion temperature (AFT) test, atomic absorption spectroscopy (AAS), scanning electron microscope (SEM), and X-ray diffraction (XRD) were applied in order to gain insight into the ash fusibility, the transformation during the melting process, and the leaching behavior of heavy metals in slag. The results showed that oxide minerals transformed into gehlenite as temperature increased. When the temperature increased to 1300 °C, 89 °C higher than the flow temperature (FT), all of the crystals transformed into molten slag. When the heating temperatures were higher than the FT, the volatilization of the Pb, Cd, Zn, and Cu decreased, which may have been influenced by the formation of liquid slag. In addition, the formation of liquid slag at a high temperature also improved the stability of heavy metals in heated slag.

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