Dust Waste Research Articles

Rancang Bangun Prototype ESP untuk Pengendapan Debu Limbah Industri dengan menggunakan Transformator Flyback

In this study ElectroStatic Precipitator (ESP) is one of the alternative dust catchers with high efficiency (reaching above 90%) and the range of particles obtained is quite large. The purpose of this research is to know the process of making ESP prototypes, to know how flyback transformers work as high voltage suppliers on ESP prototypes and to know the capture of industrial waste dust. This research uses experimental engineering methods. The shape of the prototype electrostatic precipitator is made using materials from acrylic, wood, and paralon 2 1/2 dim. From the results of testing and efficiency calculations on electrostatic prototype precipitators that have been conducted. The working principle of this tool when the control circuit switch on to the EC Centrifugal Fan will work for 40 seconds, the speed of the EC Centrifugal Fan can be set by rotating the potensio meter in the controller room. After 40 seconds EC Centrifugal Fan will ma. After 40 seconds the EC Centrifugal Fan will die and the hammer motor will work for 20 seconds to knock out the dust attached to the CE plate.

Ownership structure and air pollution: The mediation effect of energy efficiency

There is no consensus on whether state-owned enterprises (SOEs) or privately-owned enterprises (POEs) pollute more. This study explores the impact of ownership on pollution emission intensity using micro-data from Chinese industrial enterprises. From the perspective of energy efficiency, the mechanism of ownership affecting pollution emissions is explored further. Research results show that the pollution emission intensity of SOEs is significantly higher than that of POEs. The underlying reason is the low energy efficiency of SOEs, and energy efficiency plays an important mediating role in the relationship between ownership and pollution emissions. Among industrial waste gas, nitrogen oxides (NOx) and dust emissions, energy efficiency plays the largest mediating effect between ownership and NOx emissions. Additionally, in both high-polluting and low-polluting industries, SOEs’ pollutant emission intensity is higher than that of POEs, however, the mediation effect of energy efficiency is greater in low-polluting industries. In cities with high growth pressure, SOEs’ pollutant emission intensity is more significant than that of POEs. On the contrary, there are no noticeable differences in pollutant emission intensity between SOEs and POEs in cities with low growth pressure. But the mediation effect of energy efficiency is more significant in cities with high growth pressure. Industrial enterprises are the ultimate sources of industrial pollution. Therefore, the formulation of effective environmental policies cannot be separated from the analysis of enterprises’ emission behaviors and the assessment of micro factors affecting emissions. The conclusions of this study provide a basis for developing countries to formulate environmental policies for industrial enterprises.

Physical and Spectroscopic Characterization of the Microcrystalline Cellulose Derivatives from Corn Cob and Daniella Oliveri Wastes

Cellulose was extracted from wood dust waste samples of Daniella oliveri and corn cobs by acetic acid and alkaline pretreatment methods, while microcrystalline cellulose (MCC) derivative was produced by acid hydrolysis in 2 M HCl. The samples were tested for pH, moisture content, swelling capacities and ash contents. The data obtained were compared with those of commercial MCCs found in the literature. The functional groups in the microcrystalline cellulose derivatives was confirmed by the Fourier transform infrared (FTIR) spectroscopic method with characteristic absorption bands of;–OH stretching at 3416 cm-1; C-H stretching at 2918 cm-1; -OH bending at 1377 cm-1; 1159 cm-1; and C-O-C pyranose ring skeletal vibrations at 1026-1033 cm-1. The crystallinity absorption bands appeared at 1436 and 850 cm-1. The characteristic morphological features were established by scanning electron microscopy (SEM). Furthermore, the crystallinity of the microcrystalline cellulose was further confirmed using the X-ray powder diffraction (X-RD) technique, which showed three main reflections at 2θ=14.70°, 22.09°, and 34.24°.These results supported that microcrystalline cellulose derivative as cellulose I type and the acid pretreatment did not affect the structure of the MCC. The crystallinity indices were 69.3 and 73.2%, respectively. Daniella Oliveri and corn cob microcrystalline cellulose are, therefore, potential materials for further processing.

Low Temperature In Situ Synthesis of ZnO Nanoparticles from Electric Arc Furnace Dust (EAFD) Waste to Impart Antibacterial Properties on Natural Dye-Colored Batik Fabrics.

Natural polymer (cellulose)-based fabric was colored using an environmentally friendly natural dye extracted from Jalawe (Terminalia bellirica) in the preparation of Batik fabric, a cultural heritage of Indonesia that is recognized by United Nations Educational, Scientific and Cultural Organization (UNESCO). Despite the significant favorable properties in terms of functions, environmental, and cultural aspects, the combination between natural polymer-based fabric and natural dyes makes the Batik fabric an ideal medium for bacterial growth, leading to lower product quality. In the quest for a sustainable, environmentally friendly, rich-in-culture, yet durable textile, this study aimed at the functionalization of natural dye (ND)-colored Batik fabric with antibacterial ZnO nanoparticles (ZnO NPs) synthesized from Electric Arc Furnace Dust (EAFD) waste. An in situ immobilization process with a Chemical Bath Deposition (CBD) method was explored at a pH range from 6 to 11 at 50 °C. Characterization methods include XRD, XRF, FESEM, EDX, FT-IR, tensile strength measurement, agar diffusion testing, and a CIE L*a*b* scale measurement. The XRD and XRF results showed that pure (>98%) ZnO NPs were formed at pH 11 of the CBD process. FESEM results demonstrated that the pure ZnO NPs either precipitated at the CBD reactor or were immobilized on the cellulose fabric, exhibiting distinct morphology compared to the non-pure ZnO NPs. EDX elemental analysis before and after washing demonstrated the durability of the ZnO NPs attachment, in which 84% of the ZnO NPs remained on the fabric after two washing cycles (equal to 10 cycles of home laundering). The FT-IR spectra provided information on the chemical functional groups, demonstrating the success of the ZnO NPs immobilization on the cellulose fabric through Van der Waals or coordination bonding. Moreover, the in situ immobilization of ZnO NPs enhanced the Batik fabric's tensile strength but reduced its elongation. ZnO NP-functionalized Batik fabric that was treated at pH 10 and pH 11 showed antibacterial activity against Staphylococcus aureus. The CIE L*a*b* scale results showed that the immobilization process affects the color quality of the ND-colored Batik fabric. However, based on organoleptic observations, the color of the Batik fabric that was treated at pH 11 is still acceptable for Jalawe ND-colored Batik fabric.

Reuse of Buffing Dust-Laden Tanning Waste Hybridized with Poly- Styrene for Fabrication of Thermal Insulation Materials

Air pollution, resulting from buffing dust waste produced by local leather tanning industry, has become a critical issue for the environment and public health. To promote a circular economy through resource recovery, this work developed a thermal insulation composite using buffing dust-laden tanning waste mixed with polystyrene and a blowing agent. To prepare the samples from leather tanning waste, different proportions of buffing dust (5–20% (w/w)) were blended with polystyrene in the presence of 3% (w/w) blowing agent. The composite material was processed in double-barreled with co-twin extruder to expose it to pressure and then heated at 200 °C. Different physico-chemical properties of composite samples were determined. The prepared composite materials had a good thermal conductivity (0.033–0.029 W/m-K), strong compression (5.21–6.25 ton), density (38–20 kg/m3), and water absorption (5–7.5%), as compared to conventional constructional insulation panels. The thermal conductivity of polystyrene was reduced to 10% after the addition of buffing dust (20% w/w). The presence of a blowing agent in the composite material enhanced its volume without compromising its physico-chemical properties. Thermo-gravimetric analysis showed that the thermal stability of the composite material ranged from 200–412 °C. FTIR analysis indicated that the composite had carbonyl and amino functional groups. The SEM images revealed the formation of voids with a decreasing homogeneity of the composite after the addition of the buffing dust waste. The EDX analysis revealed that the composite also had 62% of C and a tiny amount of Cr. This implies that the composite panels can be used for installation in buildings as thermal insulators in the construction sector. Overall, this work not only resolved the energy consumption problems during manufacturing, but it also brought positive impacts on the environment by recycling hazardous buffing dust and then reusing it as a thermal insulation material. Not only does this reduce the air pollution that results from the buffing dust waste, but this also promotes resource recovery in the framework of a circular economy.

Green-production transitions and hazardous industrial discharge: A regional case study from China.

Green production, which reduces hazardous industrial discharges per unit output, is promoted throughout China. The Environmental Kuznets Curve suggests a negative correlation between hazardous industrial discharge and economic growth due to green innovation. This study expanded the EKC framework by including heterogeneity in evaluating the relationship between hazardous industrial discharges and economic growth to reflect green transformation. Administrative ranking disparity is identified as one of the fundamental driving forces of green production transition in a developing country. Building on an enriched EKC framework, we used a spatial estimation model to exclude spatial effects and obtained accurate estimates of the classified regions. The modified research method was used to examine whether industrial pollution has been reduced in 267 cities and towns in China from 2007 to 2021. Environmental protection performance was examined to estimate whether there is a switch to green manufacturing. As industrial hazards are of different types, the author sought to determine whether there was a decrease in industrial sulphur dioxide emissions, wastewater, solid waste, or dust, even though more industrial hazards were recycled than before. The spatial estimates indicated that (a) the national level of pollution remains positively linked with the total output, and every percentage of output growth increases sulphur dioxide emissions by 444.573 tons; (b) a positive relationship between economic growth and wastewater is altered by environmental protection in cities, while the general decoupling between economic growth and other types of industrial pollution, such as solid waste and industrial dust, was not observed; (c) growth in the southeast was decoupled from sulphur emissions, and its sulphur dioxide production per unit of output increased to 0.021 tons. Sulphur dioxide emissions per unit of economic growth along the southeast coast were 379. 048 tons, which was well below the overall average of 444.573 tons. High-income towns along the southeast coast have achieved clean production breakthroughs, realising a 15% reduction in industrial sulphur dioxide emissions by 2021. Although there were signs of a shift toward clean manufacturing in high administrative ranking cities, most regions of China are transitioning to environmentally friendly manufacturing and suffer from the hardships of green production transformation.

Use of marble and granite dust waste as partial replacement of fine aggregates in concrete

The growth in Infrastructural development resulted in fast decline of available natural resources. In contrast the marble and granite production has generated a very huge amount of by-products in the form of fine particles which causes large scale environmental pollution. This has led to a major concern in the environmental as well as construction industry due to the disposal of these million tons of fine particles. The purpose of this study is to experimentally investigate the compatibility of marble and granite dust by-product for replacing of fine aggregates in concrete partly. In this work, a mixture of marble and granite dust in ratio 0.5:0.5 is used as a for replacing of sand in different percentages (10%,20%,30%,40%,50%) by weight and cement is partially replaced with slag (GGBS) by a by 40%. Influence of replacement of sand with marble and granite dust on the strength behaviour on concrete was studied at curing ages 7 and 28 days and the results are compared with conventional concrete blocks. A 20% replacement of fine aggregates with marble and granite dust mixture resulted in 23.34% and 14.4% increase in compressive strength was at 7 and 28 days of curing, as compared to controlled concrete. The results of the experimental study show that, mixture of marble and granite dust can partially be used in place of fine aggregate in concrete and saves considerable amount of sand there by preserving the valuable natural resource resulting in sustainable replacement for sand.

Sustainable soil stabilization using marble dust waste on high plasticity soils: Physical and mechanical properties study

Sustainable soil stabilization using marble dust waste on high plasticity soils: Physical and mechanical properties study

UTILIZATION OF FLY ASH FROM PLTU KETAPANG AS FILLER ON HOT ROLLED SHEET (HRS-Base)

The utilization of stone dust waste produced from PLTU Ketapang coal combustion process is still below optimal level. Produced waste reached ± 23,13 ton /day which consists of 99,5% of fly ash and 0,5% bottom ash. As a result, the writer gained an idea of using fly ash as a filler in bitumen mixture, especially in Hot Rolled Sheet – BASE (HRS – BASE). The study was aimed to compare fly ash and stone dust if used as filler in Hot Rolled Sheet – BASE (HRS – BASE) mix in marshall test including void analysis which consistsed of VMA, VIM, VFB, and MQ. The planned test item concentration of tar was on the level of 6%, 6,5%, 7%, 7,5%, and 8%. The mixture which used stone dust as filler resulted in optimum bitumen content of 6,90% and the result of marshall test diplayed 912,072 kg of stability, 3,333 mm flow, 4,306% VIM, 18,018 % VMA, 82,681% VFB, and 273,745 kg/mm MQ. In the mixture which used fly ash as the filler resulted in optimum bitumen content of 7,1% with the marshall test displayed 877,132 kg of stability, 3,433 flow, 3,985% of VIM, 18,150% VFB, and the Marshall Quotient (MQ) 255,716 kg/mm.

UTILIZATION OF FLY ASH FROM PLTU KETAPANG AS FILLER ON HOT ROLLED SHEET (HRS-Base)

The utilization of stone dust waste produced from PLTU Ketapang coal combustion process is still below optimal level. Produced waste reached ± 23,13 ton /day which consists of 99,5% of fly ash and 0,5% bottom ash. As a result, the writer gained an idea of using fly ash as a filler in bitumen mixture, especially in Hot Rolled Sheet – BASE (HRS – BASE). The study was aimed to compare fly ash and stone dust if used as filler in Hot Rolled Sheet – BASE (HRS – BASE) mix in marshall test including void analysis which consistsed of VMA, VIM, VFB, and MQ. The planned test item concentration of tar was on the level of 6%, 6,5%, 7%, 7,5%, and 8%. The mixture which used stone dust as filler resulted in optimum bitumen content of 6,90% and the result of marshall test diplayed 912,072 kg of stability, 3,333 mm flow, 4,306% VIM, 18,018 % VMA, 82,681% VFB, and 273,745 kg/mm MQ. In the mixture which used fly ash as the filler resulted in optimum bitumen content of 7,1% with the marshall test displayed 877,132 kg of stability, 3,433 flow, 3,985% of VIM, 18,150% VFB, and the Marshall Quotient (MQ) 255,716 kg/mm.

Developing a geopolymer pastes using marble dust

ABSTRACT This paper investigates the use of marble dust waste, fly ash, and silica fume as raw materials for manufacturing geopolymer pastes. The chemical composition of each raw material is established using chemical analysis (X-ray fluorescence XRF) and mineralogical analysis, X-ray diffraction (XRD) pattern of raw materials. The experimental work was divided into three groups (A, B, C) according to the water to binder ratio (w/b) (A =28%, B = 30%, C = 33%). Each group is further divided into five subgroups according to the percentage of marble dust, fly ash, and silica fume. The samples are cured at 60°C for three days. The properties of the geopolymer pastes are determined by performing the following tests: compressive, tensile, and flexural strength and water absorption. The highest mechanical properties were obtained from mixes containing 70% fly ash and 30% marble dust at w/b = 0.28. It was 40% more than those obtained from control mixes containing 50% fly ash and 50% marble dust. It is worth mentioning that the best amount of marble dust was 30% as the resistance of the geopolymer paste reached values up to 237.8 kg/cm2. The results were confirmed by SEM imaging.

CIRCULAR ECONOMY APPLIED TO METHANE PRODUCTION FROM NATURAL GAS HYDRATE RESERVOIRS: POTENTIALITIES OF RESIDUAL DUST COMING FROM STEEL PLANTS

Natural gas hydrate represents one of the most promising solutions to answer to the constantly increasing energy demand; in addition, the possibility of recover methane via carbon dioxide injection, with a theoretical exchange ratio equal to 1, makes it a potential carbon neutral energy source. Among them, energetical costs associated to practical operations in marine deposits. The use of chemical inhibitors and or promoters to improve the exchange process is gaining increasing interest and researchers are mainly focused on finding less environmental unfriendly additives and on reducing their costs. In that direction, the present work deals with the possible use of waste dust, produced during steel mill processes, as promoter of the CO2/CH4 replacement process. That sand commonly contains a great variety of compounds, such as metal oxides, alumina, salts, and so on. Some of them have a chemical composition close to well-known hydrate inhibitors/promoters. Moreover, that application could be a further energetic cycle for a waste product. In this work, both methane and carbon dioxide hydrate formation were tested in absence and in presence of cupper oxides, with different concentrations. Hydrate formation and dissociation results where then compared among each other and with hydrate equilibrium values for those compounds.

Influence of Iron–Containing Gas Cleaning Dust Waste on the Technological Properties of Ceramic Masses

Influence of Iron–Containing Gas Cleaning Dust Waste on the Technological Properties of Ceramic Masses

Highly efficient removal of hexavalent chromium by magnetic Fe-C composite from reed straw and electric furnace dust waste.

Reed straw and electric furnace dust (EFD) waste were used to prepare magnetic Fe-C composite (EFD&C) by co-precipitation and high-temperature activation method to remove Cr(VI) from water. The magnetic EFD&C owned a large specific surface (536.61m2/g) and a porous structure (micropores and mesopores), and had an efficient removal capacity for Cr(VI). Under conditions of pH (2), the addition amount of EFD&C (1g/L), the adsorption time (760min), and the temperature (45°C), the maximum adsorption capacity reached 111.94mg/g. The adsorption mechanism mainly attributed to chemical adsorption (redox), Cr(VI) reduced to Cr(III) by Fe(II) and Fe(0) (from Fe3O4 and Fe components in EFD) and surface functional groups of -OH, C = C, C-C and O-C = O (from biochar), and secondary attributed to physical adsorption, Cr(VI) and Cr(III) (from reduced Cr(VI)) adsorbed into the porous structure of EFD&C. This study provided a feasible solution for the preparation of adsorbents for adsorbing heavy metals from iron-containing metallurgical solid waste and biomass waste, which contributed to reducing the environmental pollution and lowering the cost of adsorbent preparation.

Wear Rate Modelling and Analysis of Limestone Slurry Particulate Composites Using the Fuzzy Method

The present work is aimed at developing an Aluminium metal Matrix Composite (AMC) with an industrial waste Limestone Slurry Particulate (LSP) dust as reinforcement which is available in plenty at no cost. As the stone industry is producing huge amounts of dust as waste, utilization of this waste dust for producing useful materials can reduce its adverse effects on the environment. AMC with reinforced LSP composites are manufactured using stir casting process with varying weight% of LSP (0%, 4%, 8%, 12%, 16%). The particle size of LSP varied from 10-60 µm with an average size of 42 µm. The present work investigates the effect of control parameters on tribological properties (coefficient of friction and wear rate) of AMC reinforced with LSP. The development of suitable wear rate and coefficient of friction models using fuzzy logic is accomplished during this study.

The effect of various fibers on the red mud additive sustainable geopolymer composites

In this paper, an experimental research was conducted to investigate some mechanical and microstructural properties of geopolymers composites based on red mud-metakaolin reinforced with four different fiber types and filled with brick dust-recycle aggregate filling material. Polypropylene, glass, polyvinyl alcohol and basalt fibers were used. The effect of fiber reinforcements on the strength properties and abrasion resistance of geopolymer composites was investigated, and microstructural analysis was performed to reveal the geopolymeric matrix composition, structure and bonding of the fibers. The results revealed that fiber reinforcement to metakaolin red mud-based geopolymers with brick waste powder and recycling aggregate improved the strength properties. For example, the presence of glass and polyvinyl alcohol fibers increased the flexural strength of geopolymer composites by 39% and 61%, respectively, compared to the control sample. Microstructural analysis revealed that the fibers gave an acceptable interfacial bond with the geopolymeric binder. The findings of the current article show a potential solution to becoming a sustainable geopolymer by presenting the successful use of red mud, recycling aggregate, and brick dust waste with different fibers as important asset materials.

PM2.5 source apportionment identified with total and soluble elements in positive matrix factorization

Source apportionments of urban aerosols identified with positive matrix factorization (PMF) are sensitive to input variables. So far, total elements were frequently included as effective factors in PMF-based source apportionment. We investigated the advances to involve soluble parts of elements in the source apportionment with four data sets of PM2.5 composition observed at a coastal city (Qingdao) in northern China: water-soluble ions plus organic and elemental carbon (IC set), the IC set plus total elements (ICTE set), the IC set plus soluble elements (ICSE set), and the IC set plus both total elements and soluble elements (ICAE set). The apportionments of six sources, including secondary sulfate, secondary nitrate, secondary oxalate, sea salt, biomass burning and dust, were identified with the IC set. In comparison, pollutants from vehicle + coal combustion, ship emissions, waste incineration and industrial activities were also identified with the ICTE, ICSE, or ICAE sets. We found that the PMF solutions of the ICAE set could distinguish aged and fresh dust, and identify fly ash and aged pollutants from industrial sources. The profiles and corresponding time series of vehicle + coal combustion, secondary aerosols, ship emissions, sea salt, and biomass burning emissions identified with the four data sets were very similar, while discrepancies were encountered for waste incineration, dust, and industrial sources. These results indicate the benefits and potentials with total and soluble elements involved in PMF-based source apportionments.

Exploring the Use of Tobacco Waste as a Metal Ion Adsorbent and Substrate for Sulphate-Reducing Bacteria during the Treatment of Acid Mine Drainage

Treatment of acid mine drainage (AMD) was successfully demonstrated using tobacco waste (dust and stem) as a metal cation adsorbent, pH modifier and carbon source for sulphate-reducing bacteria (SRB). Synthetic and industrial AMD wastewaters were used in batch adsorption and SRB facilitated bioremediation experiments. Up to absorbent loading of 80 g/L, metal removal increased. However, increases above 160 g/L did not offer a proportional increase. At an adsorbent loading of 80 g/L, the highest metal removals of 38, 41, 31 and 43% for iron, nickel, copper and zinc respectively were achieved. The iron data fitted well to the Langmuir adsorption isotherm while the Sips adsorption isotherm better-described nickel, copper and zinc adsorption to tobacco waste. SRBs used were able to use tobacco waste as a carbon source while reducing sulphates to metal sulphides in acid mine drainage. In the presence of SRBs, metal removals by both adsorption and sulphide precipitation were 95, 97, 70 and 93% for iron, nickel, copper and zinc, respectively. Copper, however, demonstrated lower removal yields in both adsorption and bioremediation. Bioremediation improved acid mine drainage pH by 2.05 units. The exponential decay function could model both the metal and sulphate removal perfectly. It was concluded that tobacco waste can be confidently used as an adsorbent and carbon source for sulphate-reducing bacteria while facilitating AMD biological treatment.

Pengaruh Waktu Pengomposan Limbah Debu Sabut Kelapa dengan Kotoran Ayam Terhadap Kualitas Kimia Kompos dan Pertumbuhan Tanaman Pakcoy (Brassica chinensis)

The long fermentation chain of coconut husk dust waste needs the addition of a bioactivator to speed up the composting process. Chicken manure is an opportunity for natural activators in the fermentation process of coconut husk dust waste. The time required in composting waste will be more optimal with the addition of bioactivators such as EM-4. The research was conducted at the organic fertilizer manufacturing site 'Minak Jinggo' which is located in Sumberbaru Village, Singojuruh District, Banyuwangi Regency and continued the analysis at the Soil Science Study Program Laboratory, Faculty of Agriculture, University of Jember. In the first coronation design using a Complete Randomized Design (RAL) with one factorial and 7 treatments. Compost content testing was carried out which included analysis of measuring pH, N, P. K, C-Organic and C / N ratio of compost. Compost results with time and content in accordance with Kepmentan No. 261 of 2019 were then designed an effect test experiment on mustard pakcoy plants with 2 factorials, namely the compost used and the dosage. Done with replays 3 times each treatment. The variables observed included plant height (cm), total number of leaves (strands), stem diameter (cm), plant leaf area (cm3), total fresh weight of the plant (g) and total dry weight of the plant (g). The data obtained will then be analyzed descriptively and statistically using Anova variety analysis at the level of 5% and an Honest Real Difference Test (BNJ) at a level of 95% confidence (P<0.05) to determine the differences between treatments. The comparative treatment of coconut husk dust waste material and chicken manure 30:70 with a composting time of 28 days is the right compost formulation and effect composting time to become compost in accordance with Kepmentan No. 261 of 2019 with an NPK content of 2.074%, C-Organic of 18.47, and A C/N ratio of 11.76. Compost treatment and the best doses on the growth and yield of pakcoy plants are in the treatment of adding compost with a ratio of 30:70 (K3) material and a dose of 20 tons perhektar (D2) which affects plant height growth, number of leaves, dry weight of plants, N content of plants, and the highest absorption of plant N. As for the wet weight of the plants, the highest is found in the compost addition treatment with a material ratio of 50:50 (K2) and a dose of 20 tons perhektar (D2).

Development of a Sustainable Metallurgical Process to Valorize Copper Smelting Wastes with Olive Stones-Based Biochar

Flue dust waste coming from a copper (Cu) smelting company has been valorized using a newly developed metallurgical process with the aim of recovering a dust concentrated in valuable metals, such as lead (Pb) and zinc (Zn), and studying the feasibility of replacing anthracite with biochar as reducing agent. Metallurgical trials using different mixtures of reducing agents have been performed in a furnace at 1400 °C. This furnace employs a high-power thermal plasma (HPTP) system as energy source. Using copper as the base metal, pellets containing a mixture of the waste, different reducing agents, and binder were introduced into the furnace for their dissolution. Recovery yields in the range of 45–85 wt.% for Pb and Zn were obtained in the flue dusts. All the trials proved the effectiveness of the developed process to enrich the flue dusts in valuable metals, including those only using biochar as reducing agent. Further trials will be carried out in order to better control the parameters involved in the metallurgical process developed and improve its efficiency.