Problems with Waste Generation and Recycling in the

The wastes generated in the production of ferroalloys are mainly in the form of slag, dust, and sludge from gas-cleaning systems, in addition to ferroalloy gas. The volumes of these waste products that are formed depend on the charge materials and manufacturing technology used at the given factory. The problem of waste formation …

Current developments in chemical recycling of post …

It highlighted the prospect for the conversion of glycolyzate into other PET recycling methods products; simulation and microwave processing of PET wastes recycling, as new trends for potential and efficient quantification of mass and energy balances synergy for further studies on economic and environmental impacts on the …

Recycling Wastes in Concrete Production: Performance and …

Recycling Wastes in Concrete Production: Performance and Eco-toxicity Assessment | Semantic Scholar. DOI: 10.1007/s12649-018-0382-y. Corpus ID: …

Construction and Demolition Waste as Recycled Aggregates …

Abstract. The growth of global construction has contributed to an inevitable increase in the amount of construction and demolition (C&D) waste, and the recycling of C&D waste as aggregates in concrete is receiving increased interest, resulting in less demand for normal aggregates and bringing a potential solution for the landfilling of …

Recycling industrial wastes into self-healing concrete: A …

There is worldwide interest in using waste materials to reduce the cost of self-healing concrete, and a significant amount of studies have been performed on this topic. A review of research on waste-derived self-healing concrete is presented in this paper. The wastes were used in both autogenous and autonomous self-healing approaches, such as ...

Recycling Unrecycled Plastic and Composite Wastes as Concrete …

The land disposal of waste material is a major environmental threat, and recycling efforts must be exponentially improved to mitigate it. In this paper, a feasibility study was conducted to reinforce concrete with waste materials that are not typically recycled. ... Recycling Unrecycled Plastic and Composite Wastes as Concrete Reinforcement ...

Environmental impact evaluation of low-carbon concrete …

DOI: 10.1016/j.clema.2024.100242 Corpus ID: 268765411; Environmental impact evaluation of low-carbon concrete incorporating fly ash and limestone @article{Thorne2024EnvironmentalIE, title={Environmental impact evaluation of low-carbon concrete incorporating fly ash and limestone}, author={J. Thorne and Dan. V. Bompa …

Recycling of dimension limestone industry waste in concrete

Present study examines the suitability of using dimension limestone waste as fine aggregate in concrete. Twenty-six concrete mixes were examined by replacing river sand fine …

Crushing & Recycling

Our projects range in size from a few thousand tons of processing and crushing of concrete to several million tons of limestone or granite crushing on large quarrying projects. Independence has a vast and …

What Is Recycled Concrete and How Can It Be Used?

Recycled concrete can be used in various construction applications. It can be a base or subbase material in road construction projects. It provides a stable foundation, enhances load-bearing capacity, and contributes to the longevity of the road infrastructure. It can also be used as an aggregate in the production of new concrete.

Recycling Of Waste Glass As Aggregate For Clay Used In …

There are no by-products and wastes generated during the process [7]. Recycling of the materials to be added to clay for the production of ceramic tiles may lead to economic growth and employment opportunity for unemployed. Recycling of broken glasses is a complex processing which include; washing, milling, sieving, mixing, drying, firing, etc ...

Eco-efficient concrete containing recycled ceramic wastes aggregate

The main objective of this study was to determine the properties of concrete using recycled ceramic waste aggregates (CWA). In this study, natural fine and coarse aggregates were partially substituted as ceramic waste aggregate in the range of 25%, 50% and 75%. Fifty-four cubes and twenty-one cylinders were prepared and tested to obtain …

Steel's recyclability: demonstrating the benefits of recycling steel …

It considers the recycling of scrap into new steel as closed material loop recycling, and thus, recycling steel scrap avoids the production of primary steel. The methodology developed shows that for every 1 kg of steel scrap that is recycled at the end of the products life, a saving of 1.5 kg CO 2 -e emissions, 13.4 MJ primary energy and …

MANAGING CONCRETE WASTES BY IMPLEMENTING …

allowance of concrete due to uncertainty of material consumption within the site, excessive dimensions of concrete foundations will also cause waste of concrete (Formoso et al., 2002). Kazaz et al., (2004) stated that, concrete waste generates at the production of poor-quality concrete with the use of extravagant raw materials.

OAR@UM: Strategies for waste recycling

The experimental results indicate that use of limestone quarry waste and use of plastic waste are possible within significant percentage ranges, having recognized a limited …

Life cycle assessment of construction and demolition

S0/FS0 – The landfilling system where all CDW generated within the region is dumped at landfill sites, and portions of steel and wood scrap are scavenged for private use.. S1/FS1a – The demand-based recycling system where portions of concrete waste are recycled as road aggregates. The term "demand-based" signifies that only concrete …

Recycling of Waste Limestone as Fine Aggregate for …

Recycling of Waste Limestone as Fine Aggregate for Conventional and Green Concretes. Abstract: This paper presents the results of the experimental works to investigate the use …

Sustainable approach of utilization of limestone and treated

The strength of recycled aggregate concrete (RAC) and carbonated RAC (CRAC)was reduced by 16.67% and 1.32%, while the strength of limestone aggregate …

The 411 on Recycled Concrete: Uses, Benefits, and How To

Recycled concrete can also be used to create 2"-4" recycled stone. This product is typically used for site stabilization, bottom layer road base, and backfill. Besides stone, recycled concrete can also be used to create engineered fill sand. This fine-grained material neutralizes pH levels and is commonly used for environmental fill and ...

Strategies for Waste Recycling: The Mechanical Performance …

Strategies for Waste Recycling: The Mechanical Performance of Concrete Based on Limestone and Plastic Waste. Ferrotto M. F.; Cavaleri L. . Abstract. …

Recycling industrial wastes into self-healing concrete: A …

There is worldwide interest in using waste materials to reduce the cost of self-healing concrete, and a significant amount of studies have been performed on this topic. A review of research on waste-derived self-healing concrete is presented in this paper. The wastes were used in both autogenous and autonomous self-healing …

Recycling Agricultural Wastes and By-products in Organic …

The Circular Economy concept implies the re-design of existing production systems in agriculture, by promoting agricultural waste recycling. In an organic zucchini—lettuce rotation, two different agroecological tools were considered: biofertilizer and presence or absence of green manure (GM+ and GM−). In particular, we compared: …

Management and sustainable utilization of processing …

This review focuses on the source, classification and management of the processing wastes from ready-mixed concrete (RMC) plants and their potential reutilization. In …

National Overview: Facts and Figures on Materials, Wastes and Recycling

Recycling. The total MSW recycled was more than 69 million tons, with paper and paperboard accounting for approximately 67 percent of that amount. Metals comprised about 13 percent, while glass, plastic and wood made up between 4 and 5 percent. Total MSW Recycling by Material, 2018 69.1 million tons.

15 Vol. 67, Egyptian Journal of Geology

Recycling limestone and granite wastes offers cost reduction and eco-friendly production, as these industries generate large amounts of waste (Awad et al., 2019). Recycled materials such as granite, marble, and limestone dust are commonly used as fillers in construction. They contribute to improved strength,

(PDF) Wastes production in dimension stones industry: …

the storage and recycling of the wastes produced in differ ent stages of the dimension stone production process to be used as raw materials for other industries (Careddu et al.

Regulatory Exclusions and Alternative Standards for the Recycling …

Hazardous wastes do not cease to be dangerous simply because they are being reused, recycled, or reclaimed. Many hazardous waste recycling operations may pose serious health and environmental hazards and should be subject to regulation under Subtitle C of the Resource Conservation and Recovery Act (RCRA).. Reuse, recycling, …

Management and sustainable utilization of processing wastes …

Since 1990′s, recycling and reuse of hardened concrete from construction and demolition waste has received considerable attention, while the principles, methods of treatment and associated technologies developed are generally not applicable to unhardened or early hardened concrete wastes generated during concrete production processes.

Textile and apparel industries waste and its sustainable

The idea of sustainability through spreading Awareness in reduce, reuse, and recycle are important techniques for waste management and become a vital factor for improving the economic and environmental condition of textile industries. Because of a remarkable expansion in population, generally improvement of expectation for everyday …

Waste

Waste performance. In 2019, we disposed of 2,113 thousand tonnes of hazardous and non-hazardous waste, which is broadly comparable with 2018. In 2019, we sent more than 400 thousand tonnes off-site for recycling or reuse. Three of our downstream refineries sent more than 80% of their waste generated during the year for recycling or reuse in 2019.

Crushed Concrete Recycling Solutions

The introduction of a CDE wet processing solution can help to wash and remove the dust, fines, and other contaminants which is found in the crushed concrete. This enables operators who process and recycle crushed concrete to produce higher quality aggregate products which have a range of application uses. The recycled concrete contributes to a ...

TENORM: Copper Mining and Production Wastes | US EPA

Ores that contain copper in the U.S. are typically mined in large, open-pits. Copper processing facilities are usually located near mining or extraction sites. Significant waste volumes are associated with copper production. Mine wastes may contain radionuclides due to their natural presence in ores and can be a source of TENORM.

Recycling industrial slags in production of fired clay bricks …

Due to the production of industrial slags in massive amounts, there is a high demand for recycling these wastes to avoid their dumping in landfills [27]. Around 250, 530, and 11.8 million tonnes of STS [33], GBS [34], and FCS [35] are generated around the globe each year.

Recycling of dimension limestone industry waste in concrete

Recycling of dimension limestone industry waste in concrete. January 2016. International Journal of Mining, Reclamation and Environment. DOI: …

Garbage and Recycling

The Limestone County Recycling Program will begin on April 3, 2023. Location for Recycling Drop-off: 1301 N. Jefferson St. (just south of Elm Street) NO OTHER LOCATIONS are currently available for drop-off. Hours of Operation: 7 am – 3 pm Monday through Thursday ONLY. Gates will be locked outside of these hours and anyone caught …