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Developing processes with minimal environmental impact is essential for the production of the important intermediates and final products. Present study explores the green and low-cost synthesis of new halogenated derivatives of 1-aminoanthraquinone under catalyst free conditions at room temperature. These derivatives find wide practical application due to their unique properties. Numerous studies on the preparation of new derivatives have been devoted to the development of industrial dyes and pigments. These compo...

The aim of the study was to evaluate selected properties of fly ash and bottom ash produced after co-combustion of biomass (30%) and hard coal in a fluidized bed boiler. As part of the study, the pH of the test material was determined and its elemental composition was analyzed using X-ray fluorescence (XRF). Additionally, the ecotoxic properties of combustion by-products (CBPs) were assessed using an acute toxicity test on aqueous extracts (relative to the test plant: Lepidium sativum) and a standardized phytotoxi...

Sea buckthorn is a heliophilous species valued for its nutrient-rich orange berries, which find extensive applications in the pharmaceutical, food, and agricultural industries. This study monitored four specific cultivars: Dora, Cora, Mara, and Clara, grown in the Republic of Moldova over a 60-day period (August to September). The research focused on tracking the evolution of primary ripening indicators: vitamin C, total carotenoids, and organic acid content. Ascorbic acid, a vital bioactive component, showed a co...

Combustible dusts are presented in industry as a finished products or process intermediates created voluntarily by milling or involuntarily by abraison of larger sized solid. Spontaneous combustion is a phenomenon that occurs by self-heating, increase in temperature due to exothermic internal reactions, followed by thermal runaway (self heating which rapidly accelerates to high temperatures) and finally, autoignition. The oxidation of combustible powders occurs when they react with air oxygen, producing carbon dio...

Among the existing methods of TMS processing, the most attention is paid to pyrolysis due to such advantages of this method as a high level of process control, the ability to adapt the process to a different composition of raw materials with a high yield of target products with specified characteristics, a closed-loop process, etc. [1, 2]. The study is devoted to the study of the process of co-pyrolysis and is aimed at developing a technology for thermocatalytic processing of complex organic waste of anthropogenic...

This paper focuses on the comparison of the energy potential of biomass originating from agricultural and viticultural production, with emphasis on its utilization in the form of pellets. Selected types of agricultural residues and viticultural wastes were analyzed, specifically grape pomace skins and pruning residues from vine cutting. These materials represent underutilized by-products with significant potential for energy recovery. The main objective is to evaluate the suitability of these materials as alternat...

This article identified the issue of electronic waste (e-waste) management in Kochi, India, amongst the country's rapid technological growth and escalating electronic consumption. It highlights the severe environmental and health risks of improper e-waste disposal, particularly in the informal recycling sector, which dominates India's recycling landscape. The article emphasises the need for a transformative shift from the existing cradle-to-grave (C2G) system to a Cradle-to-Cradle (C2C) model for circular e-waste ...

Since the beginning of the 21st century, the development of the concept of the circular economy and its integration into regional sustainable development have highlighted the necessity of incorporating the principles of the circular economy into policy frameworks. This integration primarily emphasizes circular supply chains and examines the influence of existing legislative frameworks on the application of innovations within the realm of sustainable development. The objective of this study is to review the mechani...

In recent years, with the interest in healthy diet and environmental protection, plant-based alternatives, to classic milk, have been developed and produced. In addition to the already well-known products, such as almond or soy milk, amaranth milk is also becoming increasingly known. Amaranth milk is considered a possible alternative with both nutritional and ecological benefits. As a result of environmental problems and people's needs, this paper aims to compare these types of plant-based beverages, in terms of c...

Drilling muds commonly use organic polymers as viscosifiers or mud filtrate reducers. While these polymers are effective, they are also costly, contributing to higher operational expenses in oil well drilling. They play a crucial role in the success of drilling operations and help enhance various properties, particularly rheological characteristics. Due to environmental concerns, these polymers have become essential in water-based drilling fluids, serving as alternatives to oil-based muds. The present study aims t...

The role of ventilation systems is to ensure and maintain optimal microclimate conditions in industrial spaces, by controlling temperature, humidity, dust concentration and gaseous substances, within limits compatible with comfort and safety requirements. At the same time, these systems must respect permissible noise levels and air circulation speed, so as not to affect the well-being of users. In order to achieve the prescribed parameters of indoor air (temperature, pressure and humidity), it is previously subjec...

Lean management has long transcended its origins in the automotive industry and is increasingly recognized as a leading philosophy for managing organizations across both manufacturing and service sectors. Its emphasis on waste elimination, continuous improvement, and value creation has proven adaptable to diverse operational contexts. The aim of this article is to compare selected cases of lean management implementation in the shipbuilding industry with those in the automotive sector. The study analyzes key dimens...

This abstract examines the development of public policies supporting the transition toward a circular economy and their role in achieving sustainable development objectives. The aim of the article is to analyze key policy instruments, regulatory frameworks, and governance mechanisms that facilitate resource efficiency, waste reduction, and the decoupling of economic growth from environmental degradation. The study adopts a multidisciplinary approach, combining policy analysis with insights from environmental econo...

The construction sector generates substantial amounts of waste and still largely operates within a linear model of resource consumption. In response to increasing environmental pressures, circular construction has gained importance as an approach that extends material life cycles, reduces waste generation, and limits the demand for new raw materials. In this context, the reuse of building products represents a promising strategy for improving resource efficiency and supporting more sustainable end-of-life manageme...

Human hair constantly grows and it needs to be cut. Moreover, it degrades slowly, which causes it to be long-lasting. Therefore, society generates waste that needs to be stored for a long time. Furthermore, it is an inevitable type of waste regarding the perpetual nature of the growing hair process. The management of the human hair waste is necessary and if done responsibly, it can be a chance for manufacturing sustainable devices and products by making a second use of this raw material. Recycling of the human hai...

Production of biomass-plastic composites is one of the interesting recovery possibilities for waste biomass and HDPE material. The big issue in this research area is to produce the composites with acceptable and competitive level of quality which is determined through the final mechanical properties of composites. Meaning of this paper is to present the research finding for determination of the mechanical properties of waste raw materials based biomass-plastic composites. Raw material variables influence, especial...

Risk management in the transport of dangerous goods is essential for protecting human health, the environment, and infrastructure. This chapter section explores systematic risk assessment methodologies in the context of hazardous materials transport. Key techniques such as Failure Modes and Effects Analysis, Hazard and Operability Analysis, and Bow-Tie analysis are used to identify, assess, and prioritize risks associated with the transport process. These approaches enable the systematic breakdown of potential fai...

With the rapid growth of polymer consumption, the issue of efficient recycling and disposal of plastic waste is becoming increasingly pressing. One promising approach is thermal degradation (pyrolysis), which yields valuable hydrocarbon products [1]. Of particular interest is the recycling of polyethylene with increased thermal stability (PE-RT) with the addition of octylene-1. This material combines thermal stability, mechanical strength, flexibility, chemical resistance, and processability, making it a highly ef...

Purpose Electronic waste (e-waste) is one of the fastest-growing waste streams globally, posing urgent environmental and social challenges, particularly in emerging economies where recycling infrastructure is underdeveloped and informal recycling practices dominate. This article examines how circular economy (CE) principles can be applied to enhance e- waste supply chains and promote sustainable management. Design/methodology/approach A systematic literature review (SLR) of 50 peer-reviewed articles published betw...

Biochar of the waste from seed cleaning to produce can improve soil fertility and carbon sequestration. Chemical properties of biochar are affected by input biomass (feedstock) type. Biochar production from wood pellets, pelletized sweet clovers, poppy residues, hay, straw, grass-seed and alfalfa is discussed. Micro-elements (Fe, Mn, Zn, Cu, B) in biochars prepared from different types of pelletized biomass are evaluated. All materials exhibited higher element contents. The highest Fe and Cu were in biochar from p...

The foundry industry is a major producer of industrial waste, with used foundry sands (UFS) representing the largest share. While bentonite-bonded sands can be reused multiple times, sands with organic binders are typically single-use and are often landfilled due to limited regeneration capacity. Their valorization in construction materials represents an important pathway toward circular economy. This study evaluates the use of UFS from three different foundries, including bentonite- and furan-bonded systems, as p...

This study examines the potential of chemically modified spent coffee grounds (SCG) as reinforcement for epoxy bio-composites. SCG was subject to three different modifications - citric acid, acetylation with acetic acid, and potassium permanganate oxidation. Modified SCG was incorporated into epoxy resin at an 80/20 weight ratio, and the resulting composites were evaluated using flexural and impact tests. Fourier transform infrared (FTIR) data revealed that each chemical modification induced distinct structural mo...

The abstract addresses Waste-to-Energy (WtE) technologies and their significance in the context of sustainable development and the circular economy. The aim of the article is to analyze current technological approaches to the treatment of municipal and industrial waste, with a focus on their energy potential, environmental impacts, and economic efficiency. The study is based on a comparative analysis of key technologies, such as incineration with energy recovery, pyrolysis, gasification, and anaerobic digestion, e...