Consideration regarding the quality of the steel used for making rolling stock components

The work presents the manner of settlement of the specific problems of steel ingot cast in a smooth cylinder format and its use as semi-finished product, compatible with the manufacturing of monoblock wheels, under the quality conditions thereof imposed by the manufacturing regulations. By means of the proposed research and experiments we intend to get to know the specific characteristics of the ingot and the optimization thereof in order to satisfy the quality requirements imposed on the products (monoblock wheels). During the manufacturing of wheels the chemical composition and the gas content (hydrogen, nitrogen, oxygen) are to a large extent the decisive elements regarding the obtaining of the main characteristics of the wheals corroborated with the hot deformation of the cast semifinished product and the adequate thermal treatment. The main physical and mechanical characteristics established for the wheels are: resistance to rupture; yield point; elastic limit; elongation; rupture resistance or energy upon shock bending; strength; K1C tenacity

Innovative system for electrochemical active chlorine production in coaxial and cabinet-type reactors, International scientific and professional conference

Drinking water, whether previously purified or not, even if entirely clear, can often be contaminated with bacteria, viruses, or harmful microbes, necessitating disinfection. Disinfection serves as the final and sometimes the sole process in preparing drinking water. This paper presents a solution for the on-demand production of active chlorine (sodium hypochlorite) without the need for storage, aiming to prevent its degradation and ensure the safety of workers during handling

Innovations in Water Treatment

Filtration and sorption are vital techniques in water purification,effectively eliminating impurities and microorganisms from the water.The widespread use of chlorine synthesis devices, such as HIPOGEN P, has revolutionized water disinfection by generating active chlorine from common salt directly at the point of use. Employing electrolysis with table salt, water, and electricity, the HIPOGEN system ensures efficient and affordable water treatment in various settings, including individual households, urban and rural water systems, and industrial applications [1-2]. Filtration and sorption are vital techniques in water purification, effectively eliminating impurities and microorganisms from the water. This process involves various technologies like sedimentation, sand filtration, lime softening, and activated carbon filtration, ensuring the removal of a wide array of impurities. Biological filtration facilitates the conversion of organic and inorganic matter, resulting in the production of clean water, carbon dioxide, and an increase in microorganism mass. Nitrification and denitrification play crucial roles in the oxidation and reduction of ammonia, respectively, contributing to the removal of nitrogen compounds from water. Ion exchange processes aid in water softening and demineralization, effectively eliminating undesirable dissolved substances through the exchange of ions between the solution and ionic mass. Nanofiltration and reverse osmosis employ semipermeable membranes to effectively remove dissolved substances, making them valuable in water treatment and environmental protection within the chemical engineering sector

Innovations in Wastewater Treatment

For efficient design and reliable operation of the system, it is necessary to collect as much data as possible on the flow and composition of the wastewater in order to ensure compliance with all regulatory requirements.For efficient design and reliable operation of the system, it is necessary to collect as much data as possible on the flow and composition of the wastewater in order to ensure compliance with all regulatory requirements. Adoption of new standards and regulations, along with penalties for noncompliance, encourages the use of devices and facilities for wastewater treatment to ensure safe discharge into the environment. Municipal wastewater requires complex purification processes to remove organic and inorganic substances, including surfactants such as soaps and detergents. Wastewater from metal processing industries, which include various chemicals, require complex purification processes, including chemical treatment to remove pollutants. Treated waters (effluents) can be discharged into natural watercourses, used for irrigation of energy crops, or injected underground, while sludge can be used as organic fertilizer, and biogas for energy production (Picture 1). In this paper, new techniques and devices in the field of wastewater treatment technology will be presented