Temat: waste recycling - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: The Influence of Process Parameters on the Mechanical Behavior of a Composite Material Made from Mixed Plastic Wastes
Autorzy:: Platon, Mihai Andrei
Nemeș, Ovidiu
Tiuc, Ancuta Elena
Vilău, Cristian
Dudescu, Mircea Cristian
Pădurețu, Sanda
Tematy:: mixed waste
waste recycling
sustainability; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2174580.pdf Link otwiera się w nowym oknie
Opis:: Accordingly with the principles of the circular economy, mixed plastic wastes can be recycled also by thermoforming, getting new non-oriented fibers composite materials. This study highlights the mechanical behavior of new composite material plates containing recycled glass fibers as reinforcing element and ABS-PMMA mixture as matrix, as well as an efficient way to convert a manufacturing process wastes in a product. The mechanical behavior of new composite material plates was evidenced by tensile, flexural and compression tests. In addition a surface morphology analysis was performed.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Does Composting of Biodegradable Municipal Solid Waste on the Landfill Body Make Sense?
Autorzy:: Adamcová, D.
Vaverková, M.
Tematy:: waste
household waste recycling
phytotoxicity
Sinapis alba
landfill reclamation; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/124897.pdf Link otwiera się w nowym oknie
Opis:: In this study white mustard (Sinapis alba) plants were allowed to grow in earthen pots, treated with municipal solid waste compost (MSWC) to study the effect of MSWC on the plant biomass production. Twenty-one days from the establishment of the experiment sprouts and the number of growing plants occurring in the earthen pots were counted. Plants growing in the earthen pots with the compost samples exhibited an increasing plant biomass while no changes were observed in their appearance; retarded growth or necrotic changes were not recorded. The performed phytotoxicity tests show that the analyzed composts produced in the composting plant situated on the landfill surface achieved high percentages of the germinating capacity of white mustard (Sinapis alba) seeds and can be therefore used in the subsequent reclamation of the concerned landfill.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Transformation of Municipal Waste Management in Poland Towards a Circular Economy
Autorzy:: Ciuła, Józef
Bajdur, Wioletta
Gronba-Chyła, Anna
Kwaśnicki, Paweł
Tematy:: municipal waste
bio-waste
packaging waste
waste incineration
waste recycling
circular economy; Pokaż więcej
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Powiązania:: https://bibliotekanauki.pl/articles/27322986.pdf Link otwiera się w nowym oknie
Opis:: Municipal waste management in Poland has continuously changed over the past years regarding collection systems and disposal processes. After joining the EU, the approach to waste management changed dramatically, intensifying selective collection and implementing recovery and treatment processes. Recent years have shown that a further fundamental overhaul in the waste sector is needed to convert the sector to a closed-loop economy. These challenges are appearing in Poland, forcing actions in which the efficiency of the waste stream management system should generate added value in the form of sourced raw materials, materials and products. The waste generated should be managed following the waste hierarchy, in which disposal is the least desirable process. The work aims to analyse the current state of municipal waste management in Poland concerning applicable legal requirements, waste management hierarchy and the use of the best available technologies. The data from the analysis was used to determine where Poland is currently, heading towards transforming to a circular economy in the technological, social, environmental and economic areas. The research results showed the need to reduce the waste generated, including a significant reduction in the amount of waste stored in landfills and a significant increase in the recycling rates of municipal waste. In this context, supporting the transition to a closed-loop economy is essential in creating a low-carbon, recycling and innovative waste management, implementing EU strategies.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Prospects of development of bioenergetics in Belarus
Perspektywy rozwoju bioenergetyki w Republice Białoruś
Autorzy:: Korotinsky, V.
Tanas, W.
Garkusha, K.
Tematy:: bioenergy
biomass
agricultural production
waste production
recycling
waste recycling
power supply system
Belorussia
bioenergetics; Pokaż więcej
Wydawca:: Komisja Motoryzacji i Energetyki Rolnictwa
Powiązania:: https://bibliotekanauki.pl/articles/792534.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Recyclability of Ore Beneficiation Wastes at the Lomonosov Deposit
Autorzy:: Pashkevich, Maria A.
Petrova, Tatyana A.
Tematy:: waste storage
environmental hazard
wastes of diamond ore beneficiation
waste recycling; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/124758.pdf Link otwiera się w nowym oknie
Opis:: The article presents the data based on the long-term observations of the Lomonosov mine tailing storage impact on the natural environment. The study of the chemical, mineral and phase composition of waste, sampled at the tailing site, was carried out. It was determined that the ore beneficiation waste in the Lomonosov deposit is generally represented by the minerals of the smectite group. According to the X-ray diffraction analysis data, the beneficiation wastes are a bi-mineral mixture of montmorillonite and talc with pyrophyllite impurities. The wastes of this composition are potentially magnesia raw materials used in the production of construction materials, such as cement, ceramic bricks, etc. Experimental studies have justified the use of the method of wastes recycling based on the roasting of the ore beneficiation tailings, with the number of process options, depending on the temperature regimes and the exposure time.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Solvent Extraction of Co, Ni and Mn from NCM Sulfate Leaching Solution of Li(NCM)O2 Secondary Battery Scraps
Autorzy:: Hong, H. S.
Kim, D. W.
Choi, H. L.
Ryu, S.-S.
Tematy:: waste recycling
NCM-system lithium ion battery
reduction
leaching; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/355577.pdf Link otwiera się w nowym oknie
Opis:: As a part of the study on recycling Li(NCM)O₂ lithium-ion battery scraps, solvent extraction experiments were performed using different extraction agents such as PC88A, Cyanex272 and D2EHPA to separate Co, Ni and Mn from the leaching solution. When the ratio of Mn to Ni was about 0.4 in the leaching solution, the separation factor for Co and Mn was found to be less than 10 so that the separation of Co and Ni was insufficient. When solvent extraction was done using the solution with the lower Mn/Ni ratio of 0.05 where Mn was removed by potassium permanganate and chlorine dioxide, more than 99% of Mn could be extracted through five courses of extraction using 30vol% D2EHPA while the extraction rates of Co and Ni were around 17% and 11%, respectively. In the case that Mn was removed from the solution, the extraction rate of Co was higher than 99% whereas less than 7% Ni was extracted using Cyanex272 suggesting that Co and Ni elements were effectively separated.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Ozone Method Recycling Domestic Waste to Prevent Waste Water Pollution
Autorzy:: Munawir, Abdillah
Rusdiyanto, Edi
Fathar, Imam Rozali
Nurhasanah
Mierzwa, Jose Carlos
Tematy:: domestic wastewater
green technology
ozone
total coliform
waste recycling; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/59113593.pdf Link otwiera się w nowym oknie
Opis:: This study aims analyze the physical-chemical quality of domestic wastewater in hotel areas and analyze the biological quality of domestic wastewater which includes total coliform bacteria in hotel areas. The research data was obtained by conducting observation and laboratory analysis with the assessment of several standardized thresholds for environmental quality standards Regulation No. P.68 of 2016 and PP No. 22 of 2021. The results of the total coliform parameter after the application of ozonation, the results are obtained with a value of 2900 Most Probable Number/100 milliliters which is still below the maximum allowable threshold value; total suspended solid parameter test, obtained results with a value of 5 miligram/liter or under limit 30–400 miligram/liter which is the maximum allowable value limit. The oil/fat parameter obtained a value of <2 miligram/liter while the quality standard value was 5 miligram/liter; the ammonia parameter yielded 0.58 miligram/liter, while the maximum allowable limit was 10 miligram/liter; the biochemical oxygen demand parameter yielded <2 miligram/liter, while the maximum allowable limit was 12–30 miligram/liter; the chemical oxygen demand parameter yielded <4 miligram/liter, and the maximum allowed limit was 80–100 miligram/liter. The use of ozone can be an option in the process of recycling domestic wastewater in a sustainable manner proven to reduce levels of waste, viruses and its main pathogens total suspended solid, Ammonia, chemical oxygen demand, biochemical oxygen demand, Oil and Grease, as well as total coliform biological bacteria so that it can be reused by the community.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: A hydrometallurgical process for the recovery of copper metal and nickel hydroxide from the aqua regia leaching solutions of printed circuit boards
Autorzy:: Nguyen, Thi Nhan Hau
Wen, Jiangxian
Lee, Man Seung
Tematy:: e-waste recycling
separation
recovery
copper metal
nickel hydroxide; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/58971058.pdf Link otwiera się w nowym oknie
Opis:: Leaching solutions of printed circuit boards (PCBs) contain noble and base metal ions. The precious metal ions present in the leaching solutions of PCBs could be separated by cementation with copper metal. After recovery of precious metal ions by cementation, the filtrate contains Cu(II) together with base metal ions like Al(III), Fe(III), Fe(II), Ni(II), Sn(II), and Zn(II). In this work, separation experiments were conducted to recover Cu(II) and Ni(II) from the filtrate. First, copper ions were completely separated from the filtrate by chemical reduction with hydrazine at the following conditions: a molar ratio of 8 for hydrazine to Cu(II), 20°C, 500 rpm, and 20 mins. By adding sodium oxalate to the solution after separation of Cu(II), most of the Ni(II) and 38% of the Zn(II) were co-precipitated at 20°C, 60 mins, 500 rpm, and a molar ratio of 20 for sodium oxalate to nickel. After dissolving the coprecipitates of Ni(II) and Zn(II) oxalates in a 0.5 M HCl solution, the Zn(II) was completely removed from the solution by a five-stage cross-current extraction with 2.5 M Cyanex 272. Nickel hydroxides were then recovered from the raffinate by precipitation with NaOH. The purity of the copper metal and nickel hydroxides was higher than 99%. A process was proposed to recover Au(III), Pd(II), Cu(II), and Ni(II) from the leaching solutions of PCBs.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Evaluation of Agricultural Value of Composts Prepared from Municipal Biowastes in Different Conditions of Composting Process
Autorzy:: Jakubus, Monika
Spychalski, Waldemar
Wydawca:: MDPI
Cytata wydawnicza:: Jakubus M, Spychalski W. Evaluation of Agricultural Value of Composts Prepared from Municipal Biowastes in Different Conditions of Composting Process. Agronomy. 2022; 12(6):1438. https://doi.org/10.3390/agronomy12061438 ; https://www.mdpi.com/2073-4395/12/6/1438
Opis:: The increasing mass of organic waste as well as the assumptions of a circular economy enforce the rational management of this type of waste. One method of recycling is composting, which makes it possible to use waste efficiently as an organic fertilizer. This paper presents the results of a comparative study of six different composts in terms of their agricultural quality. The aim of this study was to evaluate the bioavailable amounts of metals using single extractions with DTPA solution and to characterize various humic compounds. Particular attention was paid to the amounts of labile carbon (LC), hot water-extractable carbon (HWC), and the quantity and quality of humus substances (HS). Regardless of compost types, they were characterized by a small share of easily decomposable compounds such as fulvic acids (FAs), LC, and HWC, which may indicate the low susceptibility of compost humic substances to microbiological degradation in soil. In general, the bioavailable metal amounts found in the analyzed composts were low; therefore, the tested composts applied to the soil can be considered safe for the environment.
Dostawca treści:: Repozytorium Centrum Otwartej Nauki

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Skocz do pozycji: 10.

Tytuł:: Experience in the Implementation of Drilling Waste Utilization Technology on the Example of a Large Oil and Gas Region of Russia
Autorzy:: Bogdanova, Olga
Okmynskaia, Valentina
Tematy:: drilling waste
safe disposal
inert
building material
environmental conservation
waste recycling; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/2026735.pdf Link otwiera się w nowym oknie
Opis:: The oil industry is characterized by an intense impact on the environment, which inevitably causes its change. In the production process, the existing state of the environment in the territories of industrial facilities is completely or partially disturbed. Today, the result of the negative environmental impact of the fuel and energy industry on the nature of the regions of northern Russia has resulted in millions of tons of drilling and oil production waste stored in sludge pits and causing colossal damage to the atmosphere, hydro- and lithosphere of the country’s oil-producing territories. The aim of this work is to improve the technological process of utilization of drilling waste in the fields with the receipt of an inert building material that does not have a negative impact on the components of the natural environment. In the course of work, based on the analysis of the proposed disposal methods, the most optimal option was selected and a technology for disposal of drilling waste at an oil field was developed, a situational map of the object was presented, and an estimate of the cost of the proposed disposal technology was carried out. Based on the results of the work carried out, a conclusion was made about the effectiveness of the utilization technology under consideration, since it was revealed a decrease in the amount of generated and accumulated waste, a decrease in the costs of maintaining and reclamation of waste accumulation / disposal facilities.
Dostawca treści:: Biblioteka Nauki

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