Types Of Ash Research Articles

Adsorptive removal of Cu(II) by fly ash based geopolymer material

Geopolymer are aluminosilicate inorganic polymer synthesized by polymerization of aluminosilicate with alkaline solutions. These materials possess high surface area hence promising adsorbent. In this paper fly ash and rice husk-based geopolymer type hybrid mass is applied for remediation of Cu(II) ions. Various adsorptive parameters for example contact /reaction time, effluent metal ions concentration, dose of hybrid mass, pH and operating temperature are optimized and fixed for getting maximum removal of aqueous Cu(II) ions. Equilibrium isotherm and kinetic studies revealed that the isotherm data were best described by Langmuir adsorption isotherm and the rate of adsorption follows the pseudo second-order. Thermodynamic studies carried out by applying Van’t Hoff equation, which revealed that the process was exothermic and spontaneous. Results indicate encouraging performance of hybrid mass towards removal of Cu(II) ions.

Investigating the use of zinc production wastes as filler in asphalt mixtures

This study aimed to evaluate different types of zinc production wastes for using as filler in asphalt mixtures. Four different types of waste, namely, leach cake, nickel cake, cobalt cake and zinc ash have been chosen along with limestone powder as the control filler for evaluation. Elemental analysis of the fillers, the rheological properties of the mastics and some mechanical properties of the mixtures using Marshall and indirect tensile strength (ITS) tests and their environmental effects using Toxicity Characteristic Leaching Procedure (TCLP) and Synthetic Precipitation Leaching Procedure (SPLP) tests have been investigated. Results show that, except the nickel cake, for which the cadmium concentration exceeds the legal limit, rest of the fillers can be used as filler in asphalt concrete. The zinc ash filler results in much better performance than the other fillers. Leach and cobalt cake are found to be hydrophilic with low resistance against moisture damage.

Effects of wildfire ash on the growth and biochemical profiles of the aquatic macrophyte Lemna minor

Wildfires are a social and environmental concern to the world due to their many adverse effects, including risk to the public health and security, economic damages in prevention and fight, ecosystems pollution, land usage sustainability, and biodiversity. In the Mediterranean region, these events have increased in the last years. Although several studies evaluated the impacts of the wildfires on the structure and function of the ecosystems and their communities, there is a lack of information at the biochemical level beyond the toxicological effects to the organisms. So, aiming to evaluate the potential toxic and biochemical effects of pine and eucalypt ash from high and low severity burned areas in the aquatic environments, L. minor growth, fatty acid and carbohydrate profiles were studied. Data showed that the wildfires ash from high severity burned areas are more toxic, with a higher growth inhibition than when exposed to ash from low severity burned areas. Considering the ash from low severity burned areas, eucalypt ash revealed to be more noxious to the macrophyte than pine ash. Furthermore, it was observed a decrease in the diversity and abundance of fatty acids content, comparing with the control. An opposite trend was observed in carbohydrates which increased with the organisms’ exposure to almost all ash types, except in case of the organisms exposed to eucalypt ash from high severity burned areas, where carbohydrate content decreased.

Characterization of class C and F fly ashes based geopolymers incorporating silica fume

Geopolymers have been proposed as an alternative to ordinary concrete with their appropriate mechanical performances and eco-friendly impacts. In current study investigated the interaction between the class C and F fly ashes on the properties of silica fume incorporated geopolymers. For that purpose, the concentration of the alkali activator were determined according to compressive and flexural strengths. Then, the geopolymers prepared with different fly ash/silica fume ratios at specified alkali activator concentration. Mechanical, physical, chemical and microstructural properties of these geopolymers were evaluated by FT-IR, XRD, TGA, and SEM-EDX. The mechanical properties of geopolymers were enhanced remarkably by NaOH molarity and it was detected that the compressive strength and flexural strength values reached the highest (21.13 ± 1.11 MPa and 6.61 ± 0.56 MPa, respectively) at 10 M. Results were compared according to the fly ash type and the fly ash/silica fume ratios of the geopolymers. Due to the high water demand of silica fume, prominent cracks were seen in the geopolymers including 100% silica fume. Besides, inadequate mechanical properties were obtained when 100% fly ash was used. Consequently, it was clearly revealed that the properties of geopolymers obtained with only fly ash or silica fume were improved by the use of both. Finally, higher mechanical properties (σC: 31.91 ± 1.90 MPa, σF: 8.34 ± 0.23 MPa) and less cracks in the bodies were obtained with class F fly ash (75% wt.).

Review of alternative ash aggregates in concrete-solution towards waste management and environmental protection.

Owing to the depletion of natural resources, new alternative materials are emerging in construction industry. Especially, development of alternative binders and aggregates using industrial by-products paves way for the development of eco-friendly concrete. As aggregates occupy about 60-70% of the volume of concrete, new alternative materials developed as a substitute for aggregates are considered as need of the day for achieving sustainability in concrete industry. In the past few decades, many industrial by-products are researched as an alternative for natural aggregates. Ash being the largely produced by-products from different industries, it has huge potential in the development of artificial aggregates. Nevertheless, ashes produced from different sources such as coal, municipal solid waste and biomass have different characteristics and affect the properties of aggregates made out of them. The volume of research works reported on development of ash aggregates all over the globe shows that there is a faster growth rate in the development of alternative aggregates and its utilization in concrete. In this context, the current study aims to review the literature reported on mortar/concrete made of ash aggregates from various sources such as thermal power stations, biomass and municipal solid waste incinerator. The characteristics of different types of ash, development of aggregate and its properties in mortar/concrete are reviewed. Based on the review, future recommendations and directions are provided to utilize more of ash aggregates in the place of natural aggregates to prevent depletion of natural resources.

Applications of Oil Palm Ash and Various Types of Organic Fertilizer on Acid Soil (Ultisol) for Onion (Allium ascalonicum L)

Onion production in Riau Province is still low, while the demand is quite large. Therefore, it is necessary to increase production. This study aimed to determine the effect of the application of oil palm ash and various types of organic fertilizers on ultisol soils on the growth and production of shallots. The design used was a completely randomized factorial design consisting of 2 factors. The first factor was the provision of oil palm ash which consisted of 4 levels of treatment, namely: 0, 200,400, and 600 g/plot. The second factor is various types of organic fertilizers which consist of 4 levels of treatment, namely: without giving organic fertilizer, chicken manure, tankos compost and corn litter bokashi. The parameters observed were plant height, number of tubers per clump, wet tuber weight per clump, dry tuber weight, percentage of tuber weight loss, relative growth rate and nutrient uptake. plants, number of tubers, wet weight per clump, dry weight per clump and tuber weight loss, the best treatment was giving palm ash 400 g/plot and corn litter bokashi. The main effect of giving palm ash bunches was real on all observation parameters, the best treatment was 400 g/plot. The main effect of organic fertilizer was real on all observed parameters. The best treatment was corn litter bokashi.

Research on formation mechanism of typical low-temperature fouling layers in biomass-fired boilers

Ash deposition in flue gas covering low-temperature surfaces (<150 °C) of biomass-fired power plants have two typical characteristics that are distinct from that of coal-fired power plant. First, NH 4 Cl is present in the deposited ash when the surface temperature is adequately low. Second, hygroscopic salts, such as CaCl 2 , MgCl 2 , NaCl etc. are present in the deposited ash, which may cause the ash to adhere to the surface when the salts absorb water. In this study, a test system with transformable cooling media was designed according to the measured temperature needs for on-site ash deposition experiments in a 35 MW biomass-fired power plant. Scanning electron microscope (SEM) equipped with energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) were used to analyze the ash samples collected during the experiment. The results show that four typical ash deposition layers were obtained by varying the tested pipe temperature during the cooling process, i.e., dry-loose ash layer (>120 °C), multi-loose ash layer (120-90 °C), adhering ash layer (90-60 °C), and viscous ash layer (<60 °C). In order to study the formation mechanism of typical low-temperature fouling layers, the following analyses were performed: the boundary temperature of NH 4 Cl crystallization was calculated, the condensations of H 2 SO 4 and HCl were analyzed, critical deliquescence temperatures (CDTs) of deliquescent chlorides were calculated, and water uptake of deliquescent chlorides under different temperatures and moisture were proposed.

Bloating of fly ash-based lightweight aggregates

The present work characterized two types of fly ash, one from pulverized coal combustion and the other from fluidized bed combustion. The effects of fly ash origins, raw mix proportions, and sintering temperatures on the bloating of lightweight aggregates were studied. The raw mixtures were calculated based on Riley's SiO2 – Al2O3 – fluxing composition diagram. The exothermic combustion reaction of a large amount of unburnt coal causes overheating, which results in boiling and abnormal bloating behavior. Besides, raw mixture compositions outside Riley's composition margin perform efficient bloating with most pore sizes from 0.5 to 1 mm. Hence, besides the fluxing content, one should consider the amount of unburnt coal in the fly ash in synthesizing lightweight aggregates.&#x0D;

Study on effect of fly ash and limestone powder on compressive strength of roller compacted concrete for dam construction

Roller compacted concrete (RCC) is a special concrete having similar ingredients as in the case of conventional concrete, but in different proportions. Use of fly ash to replace significant proportion of Portland cement (PC) for RCC mix is very popular. However, use of limestone in RCC is not so popular. Limestone can act as an inert filler as well as can take part in hydration process and development of different hydration products to a limited extent. The study attempts to determine the optimal replacement levels of PC using fly ash and limestone for development of high volume fly ash based roller compact concrete with limestone filler for use in construction of dams in India by evaluating the fresh properties (in terms of Vee Bee time, density and setting time) and compressive strength (at 7, 28, 56, 90 and 180 days) for different RCC mixes having varying proportions of PC, fly ash and limestone. The study evaluation of 17 RCC mixes prepared by replacing PC to an extent of 72% (by weight of total cementitious content) using two types of fly ash and two types of limestone from different sources to observe the variations in setting time, short and long-term strength for the concrete. For RCC mixes having ternary cementitious systems (combination of OPC, fly ash and limestone), setting time values were observed to be in between setting times of mixes made with binary cementitious systems (i.e. OPC and limestone &amp; OPC and fly ash). Optimum performance in terms of compressive strength at all the ages was observed for mixes with ternary cementitious system due to the synergistic contributions (physical and chemical) of both fly ash and limestone.

Variasi Molaritas Naoh Dan Alkali Aktivator Beton Geopolimer

Cement as a building material for concrete produces CO2 which can damage the earth's atmosphere. Therefore, environmentally friendly geopolymer concrete is the choice. The main ingredients for making this concrete are pozzolanic materials which are rich in Silica (SiO3) and Alumina (Al2O3) as a substitute for cement and alkali activator in the form of Sodium Hydroxide (NaOH) and (Na2SiO3) as binders.This study aims to determine the variation of the mixture for the highest compressive strength. The ratio of fly ash type F and alkali activator is 74%:26%. The molarity of NaOH used was 10M, 12M, 14M, the ratio of Na2SiO3 and NaOH was 2.5:1; 3.0:1; 3.5:1. The test object is cylindrical size 15cm x 30cm and the compressive strength test is 28 days old.The test results with the ratio of NaOH and Na2SiO3 2.5:1 at 10M, 12M, 14M NaOH are 25.81 Mpa, 27.00 MPa, 28.98 MPa. While the compressive characteristics are 24.32 Mpa, 24.67 Mpa, 26.58 Mpa. The test results show that the ratio of molarity and alkali activator greatly affects the compressive strength and workability of geopolymer concrete. High molarity will produce high compressive strength. Meanwhile, the higher the alkali activator ratio, the lower the compressive strength produced.Â

Alkali-activated materials produced using high-calcium, high-carbon biomass ash

Eucalyptus ash (EA) was used in this study as a high calcium ash (HCA) precursor for alkali-activated binders. The EA used also has high carbon unburned (High loss on ignition). This type of ash is one of the waste products from biomass-fuelled thermoelectric plants, and annually thousands of tons are discarded as a by-product of the energy generation process in Brasil, but it is rich in unburnt carbon which means that it is challenging to use in cementitious systems. Eucalyptus is a biomass that removes CO2 from the atmosphere by photosynthesis and part of this carbon content remains in the ashes, generating CO2 capture when EA is incorporated in the production of alkali-activated binders. The objective of the present study was to evaluate the properties of the material obtained by the alkali-activation of the high-calcium high-carbon biomass ash to generate a cementitious binder, with different pastes proportions of EA and silica fume (SF), activated by sodium hydroxide. With the different pastes, mortars were produced using standardized sand. The results obtained from the pastes and mortars were satisfactory in several aspects. The mechanical results of the alkali-activated mortars were comparable those of Portland cement mortars. Mortars degraded methylene blue more efficiently in illuminated conditions, even after high adsorption for 24 h in the dark. The content of leached ions in the remaining solutions met potability standards.

Effects of Pine and Eucalypt ashes on bacterial isolates from the skin microbiome of the fire salamander (Salamandra salamandra)

Environmental contamination influences the diversity of the resident skin microbial community of amphibians, ultimately affecting the individual's immune system. Wildfires are expected to impact the skin microbiome, since post-fire runoff typically transports hazardous substances, that can affect terrestrial and aquatic ecosystems. The present study is the first to assess the effects of Eucalypt and Pine wildfire ash on cultivable bacterial isolates from the skin microbiome of amphibians, in particular the fire salamander (Salamandra salamandra), a common species in fire-prone Mediterranean ecosystems. To achieve this goal, samples of skin bacteria of adult individuals of S. salamandra were collected at a site without influence of wildfires. The bacterial isolates were tested against the pathogenic agent Aeromonas salmonicida for assessing their antimicrobial activity, before exposing them to a series of dilutions of aqueous extracts of Eucalypt and Pine ashes (AAEs) from high severity wildfires. From the 80 bacterial isolates collected, 48 (mostly Pseudomonas spp.) showed antimicrobial activity. Exposure of bacteria with antimicrobial activity to the Eucalypt and Pine AAEs at concentrations of 0, 6.25, 12.5, 25, 50, 75, and 100%, revealed that bacterial growth could be significantly inhibited, stimulated or unaffected by ash. Growth inhibition was found for Pine and Eucalypt AAEs at concentrations as low as 6.25% and 12.5%, respectively, but were more expressive at concentrations equal or above 50%. Eucalypt AAEs had a higher negative impact on bacterial growth than Pine AAEs, likely due to differences in metal concentrations between ash types. These findings raise concern about the future of amphibians in fire-prone regions since the foreseen increase in fire frequency and severity owing to climate changes are likely to alter the skin microbiome of amphibians, weaken the immune system and consequently increasing the incidence of infections or diseases, further contributing to the decline of the populations.

Manufacture and characterization of carbonated lightweight aggregates from waste paper fly ash

The combustion of biomass and waste paper sludge in a fluidized bed is ecologically profitable. However, a large amount of by-product with high hydraulic reactivity is produced and is considered as wastes. Most of the time the waste paper fly ash (WPFA) goes to landfills, therefore new utilization methods are necessary. In some countries, the high content of metallic and metalloids trace elements (MMTE) in WPFA, more specifically Barium (Ba) and Lead (Pb) makes its valorization difficult. In this paper, the Lightweight Aggregates (LWA) was produced from WPFA by granulating with water in high-intensity granulator. Since WPFA is rich in CaO, the addition of water promotes rapid setting and hydration compared to other types of ash. In this study, different granulation parameters were investigated, such as the rotation modes between the steel pan and the impeller, the rotation speed of the steel pan, the granulation time, in order to improve the mass percentage of the targeted LWA (2–16 mm). In order to evolve the immobilization potential of Ba and Pb, a carbonation process was performed, exposing the manufactured LWA to pure carbon dioxide (CO2) gas at laboratory scale. The physical, morphological, thermal and mechanical characterizations were performed on LWA for use in mortars, concretes or civil engineering constructions.Results have demonstrated the influence of the rotation mode between the steel pan and the on the distribution of WPFA inside the steel pan and the change in the growth rate of the granules can be observed. Increased density and improved compressive strength with low porosity and water absorption were also found in LWA after carbonation. This was due to the occurrence of both a carbonation reaction and a hydration reaction. Furthermore, the results of thermogravimetry and SEM-EDS confirmed the formation of hydrated phases (ettringite, carboaluminates), also the formation of calcite in the pores and the external surface of the LWA. Regarding environmental aspects, the results have revealed that Ba and Pb were well immobilized in the solid matrix after carbonation.

The effect of increasing MgO content in dendromass on ash fusibility and corrosion of corundum refractory castable

Low melting temperatures of the biomass ash at the intensive combustion can generate the slag with a portion of unburned fuel. The portion of imperfectly burned fuel reduces the efficiency of its use. An alternative route to solve the problem without changing the combustion condition is a modification of the chemical composition of the ash with the addition of an agent increasing the melting temperature of the ash/slag. In this paper, we report on the impact of adding the magnesite waste sludge to ash on their melting. Three types of ashes with different SiO2 and K2O content were selected for the tests. The melting temperatures of ash and ash mixtures with magnesite sludge (mass ratio 0.5–2:1) have been determined. The addition of magnesite sludge to ash increased the temperature of fusibility index of the mixtures by 50–100 °C. The ash fusibility temperature rose with a decrease of the SiO2 content in the ash. Subsequently, the interaction of the ash/ash mixtures with the refractory corundum castable was monitored at a temperature of 1450 °C using a static crucible corrosion test. The addition of magnesite sludge to ash reduced the aggression of the slags to the refractory corundum materials. The Al2O3 concentration in the post mortem slags of the ash mixtures with the magnesite sludge (2:1) was about 20–23 wt% lower in comparison to the slag without magnesite. The evaluation of the effect of magnesite sludge addition to ash and the elements (K, Ca, Mg, Fe, Si) penetration on the extent of corrosion is the subject of further work aimed at analyses of the corrosion interface of the slag – corundum refractory material.

Utilization of Different Grain Size of Municipal Solid Waste Bottom Ash in High-Performance Mortars

Globalization is bringing increased industrialization and municipal solid waste (MSW). This is a major concern in heavily populated areas. In order to reduce MSW generation, incineration is commonly used, resulting in two types of ashes: bottom and fly ash. Bottom ash is gathered at the incineration bed and is larger in mass than fly ash. To test the qualities of high-performance mortar, MSW-BA in three sizes (fine, medium, and coarse) was replaced with sand at three replacement levels of 10%, 20%, and 30%. The high-performance mortar integrating MSW-BA was tested for hardened density, mechanical properties such as compressive and flexural strength, resistance to NaOH solution, and heavy metal leaching. The substitution level of MSW-BA increased the hardened density of the mortar mixes. The volume change and residual strength of the mortar mixes were measured following exposure to the NaOH solution. Fine-particle mortar mixes shrank whereas medium- and coarse-particle mortar mixes expanded. The largest loss in flexural and compressive strength was recorded when 20% of sand was replaced with a fine fraction of MSW-BA. Heavy metals including cadmium and copper were not leached from MSW-BA combinations of any size. The minuscule amounts of lead and zinc discovered were well below acceptable limits. The present study illustrates the MSW-BA can be utilized as a substitute for sand in the development of high-performance mortar.

Structure Strength Correction Value for Concrete’s Mix Proportion Strength Using Low-Quality Recycled Aggregate

To develop a design method for concrete using low-quality recycled aggregates, an experimental study was conducted on applicability to examine the structural strength correction value (S value) and calculation of mix proportion strength of recycled aggregate concrete-Class M, which used recycled aggregate class L mixing with the normal aggregate. Cement used in the experiment was ordinary Portland cement (in this case, fly ash type II was used as a fine aggregate substitute), Portland blast-furnace slag cement type B, and low-heat Portland cement. As a result, the mix proportion strength of recycled aggregate concrete-Class M could be determined using the S value according to JASS 5 (2018) as normal-weight concrete.

A Study on the Influence of Sodium Silicate Concentration and SiO2 : Na2O Ratio on the Properties of Low-Calcium Fly Ash-Based Alkali-Activated Materials Cured at Ambient Condition

Low-calcium Fly ash-based alkali-activated materials (AAM) have some extraordinary properties such as high fire resistance and low shrinkage. However, they have lower strength and high setting time when curing at ambient temperature conditions. Therefore, this research aimed to improve the strength and setting time of low-calcium fly ash-based AAM curing at ambient temperature conditions. The effect of the changes in concentration and modulus of sodium silicate and curing condition of the materials were studied on the properties of the AAM. Fly ash type II, 32% sodium metasilicate pentahydrate, 32 and 56% sodium disilicate solution, 8M sodium hydroxide, and standardized were used. Using 32% sodium disilicate solution significantly improved the flowability of mortar. Moreover, it increased the compressive strength and remarkably decreased the setting time of AAM at ambient temperature curing. The decrease in the concentration of sodium disilicate has a significant influence on the reactivity of fly ash.

Flexural behaviour of lightweight aggregate concrete columns

The flexural performance of lightweight concrete (LWC) columns was evaluated and limitations of ACI 318-19 in predicting the flexural crack (Mcr) and maximum (Mn) moments, as well as the minimum amount of transverse reinforcing bar (Ash(ACI)), were examined. Six LWC columns with different amounts of transverse reinforcing bar (Ash), compressive strengths of concrete (fc′) and concrete types were prepared and tested under constant axial and cyclic lateral loads. The test results show that ACI 318-19 agrees well with the Mcrof tested columns, considering the lower tensile stress of LWC columns by introducing modification factors (λ) (all-lightweight concrete, λ = 0.75; sand–lightweight concrete, λ = 0.85) for the fracture modulus of concrete (fr). In addition, ACI 318-19 underestimates Mn, irrespective of Ash, fc′ and concrete type. The ductility of LWC columns increased with the increase in volumetric transverse reinforcing bar index (ωvh). The increasing rate was lower than that of normal-weight concrete (NWC) columns. The displacement ductility ratio (μΔ), work damage indicator (W80) and equivalent damping coefficient (ξ80) of a column with 1.0Ash(ACI)were, on average, 30, 36 and 18% lower in LWC than NWC columns. Consequently, double the Ash(ACI)was required to retain a flexural ductility equivalent to that of a NWC specimen.

Mineral carbonation of thermally treated and weathered biomass ashes with respect to their CO2 capture and storage

Five long-term stored biomass ashes (BAs) from beech wood chips, corn cobs, sunflower shells, plum pits, and walnut shells produced at 500 °C were thermally treated at 900 °C and subsequently weathered to evaluate their CO2 capture and storage (CCS) potential by mineral carbonation. A combination of different mineralogical, chemical and thermal analyses was used for that purpose. The BAs studied are highly enriched in alkaline-earth and alkaline oxides (52–91%) and they belong to diverse chemical ash types. The minerals responsible for CCS of these BAs include Ca, K, K-Ca and Ca-Mg carbonates and bicarbonates such as calcite, fairchildite, kalicinite, dolomite, and butschliite. The formation of these minerals is a result of interactions between alkaline-earth and alkaline oxyhydroxides in BA and flue CO2 gas during residual char combustion and especially atmospheric CO2 during BA storage and weathering. It was found that the BAs studied show significant CCS capacity, namely about 19–33% (mean 27%). It was emphasized that the renewable and carbon-neutral biomass also has some extra CCS potential due to the sequestration of atmospheric CO2 during BA storage and weathering. Therefore, the future large-scale bioenergy production in a sustainable way can contribute greatly for decreasing CO2 emissions in the atmosphere and can reduce the use of costly CCS technologies.

Forensic analysis of cigarette ash using ATR-FTIR spectroscopy and chemometric methods

Cigarette ash is frequently found in crime scenes involving murder, suicide, rape, dacoity, or assault cases, but it is frequently overlooked as potential evidence by investigators. This ash as evidence can assist an investigator in figuring out the number of people who were there at the time of the crime as well as narrowing down the suspect pool. Because any type of ash, such as burnt paper, dhoop, agarbatti, cloth, tandoor, and so on, could be present at the crime scene, the first objective of this research study proposed a method for the characterization and discrimination of cigarette ash from other types using ATR-FTIR Spectroscopy in conjunction with statistical models PCA and PLSDA. In the second objective, this approach was used for the discrimination of cigarette and bidi ash. Finally, the same strategy is used to distinguish between ashes from three different cigarette brands because some people prefer one brand over another, which may be useful in certain situations. For this research study, we collected a total of 94 samples (47 unsmoked/fresh cigarette sticks of 20 brands from local vendors and 47 samples as other ash types from the surrounding area), 12 samples of bidi/hand-rolled cigarettes from different brands for cigarette ash discrimination, and 30 samples (10 sticks for a single cigarette brand) for brand discrimination. After smouldering the collected sample sticks in the laboratory, ash spectra were obtained for all of them for cigarette ash discrimination and brand determination. Differences in peak patterns, their absorbance, and the presence or absence of specific components in the fingerprint region were investigated for discriminatory purposes. Because FTIR spectra evaluation is time-consuming and prone to human error, the data was further analysed using multivariate techniques such as PCA (principal component analysis) and PLS-DA (Partial Least Square Discriminant Analysis) to improve sample discrimination. In the PCA plots, there was a degree of sample segregation. Therefore, for classifying the data into groups and predicting their outcomes, the PLS-DA method was employed, and a satisfactory categorization of samples was accomplished. The performance of the PLS-DA model is further validated using blind testing of unknown samples. As a result of the current research work, a non-destructive, efficient, and non-invasive approach for analysing cigarette ash has been established, which would aid in crime scene investigation.