Effects of petroleum sludge ash in fly ash-based geopolymer mortar

Kankia, Mubarak Usman; Baloo, Lavania; Mohammed, Bashar S.; Hassan, Suhaimi; Haruna, Sani; Danlami, Nasiru; Ishak, Effa Affiana; Samahani, Wan Nurliyana

doi:10.1016/j.conbuildmat.2020.121939

Cited by 14 publications

(9 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to the diverse characteristics related to proximate and ultimate analysis of the organic waste and the need for a suitable microorganism environment, such as nutrient balance, pH temperature and so on, anaerobic co-digestion is an effective way to enhance the digestion process for better biogas quantity and quality [13][14][15]. The anaerobic co-digestion process can reduce environmental pollution and improve the circular economy through the conversion of low value materials such as organic waste, either agricultural, residential or industrial, to high value materials such as biofuels [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Sugarcane Bagasse as a Co-Substrate with Oil-Refinery Biological Sludge for Biogas Production Using Batch Mesophilic Anaerobic Co-Digestion Technology: Effect of Carbon/Nitrogen Ratio

Ghaleb

Kutty

Hayder

et al. 2021

Water

View full text Add to dashboard Cite

Man-made organic waste leads to the rapid proliferation of pollution around the globe. Effective bio-waste management can help to reduce the adverse effects of organic waste while contributing to the circular economy at the same time. The toxic oily-biological sludge generated from oil refineries’ wastewater treatment plants is a potential source for biogas energy recovery via anaerobic digestion. However, the oily-biological sludge’s carbon/nitrogen (C/N) ratio is lower than the ideal 20–30 ratio required by anaerobic digestion technology for biogas production. Sugarcane bagasse can be digested as a high C/N co-substrate while the oily-biological sludge acts as a substrate and inoculum to improve biogas production. In this study, the best C/N with co-substrate volatile solids (VS)/inoculum VS ratios for the co-digestion process of mixtures were determined empirically through batch experiments at temperatures of 35–37 °C, pH (6–8) and 60 rpm mixing. The raw materials were pre-treated mechanically and thermo-chemically to further enhance the digestibility. The best condition for the sugarcane bagasse delignification process was 1% (w/v) sodium hydroxide, 1:10 solid-liquid ratio, at 100 °C, and 150 rpm for 1 h. The results from a 33-day batch anaerobic digestion experiment indicate that the production of biogas and methane yield were concurrent with the increasing C/N and co-substrate VS/inoculum VS ratios. The total biogas yields from C/N 20.0 with co-substrate VS/inoculum VS 0.06 and C/N 30.0 with co-substrate VS/inoculum VS 0.18 ratios were 2777.0 and 9268.0 mL, respectively, including a methane yield of 980.0 and 3009.3 mL, respectively. The biogas and methane yield from C/N 30.0 were higher than the biogas and methane yields from C/N 20.0 by 70.04 and 67.44%, respectively. The highest biogas and methane yields corresponded with the highest C/N with co-substrate VS/inoculum VS ratios (30.0 and 0.18), being 200.6 mL/g VSremoved and 65.1 mL CH4/g VSremoved, respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Sugarcane Bagasse as a Co-Substrate with Oil-Refinery Biological Sludge for Biogas Production Using Batch Mesophilic Anaerobic Co-Digestion Technology: Effect of Carbon/Nitrogen Ratio

Ghaleb

Kutty

Hayder

et al. 2021

Water

View full text Add to dashboard Cite

show abstract

“…Then, they were immersed in water for 24 h and the saturated weight was taken as Ws. The water absorption was calculated by the following formula, Equation (5).…”

Section: Response Surface Methodologymentioning

confidence: 99%

“…The response surface methodology (RSM) aims to optimize the efficiency of dependent variables through changing input variables [ 5 ]. The RSM involves experiment, modeling, and data analysis.…”

Section: Methodsmentioning

confidence: 99%

“…Oily sludge is a hazardous waste containing a complex mixture of different emulsified petroleum hydrocarbons, water, heavy metals, and solid particles. Oily sludge contains large amounts of crude oil, heavy metal ions, inorganic salts, polycyclic aromatic hydrocarbons (PAHs), and other toxic substances that contaminate the soil, surface, and groundwater [ 4 , 5 ]. According to the Resources Conservation and Recovery Act (RCRA), oily sludge is a hazardous waste that affects the environment and the living things if it is disposed of improperly [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

“…Souza et al [ 25 ] added oily sludge in the manufacture of clay-based ceramics (roofing tiles and hollow bricks) up to 30 wt.% of waste as a substitute for natural clay, and the result revealed that the heavy metals were within allowable leaching limits. Usman et al [ 5 ] incorporated OSA in fly ash-based geopolymer mortar and found that the 28 day compressive strength for the mixture made with 10 wt.% OSA was highest (31 MPa).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optimization of Cement-Based Mortar Containing Oily Sludge Ash by Response Surface Methodology

et al. 2021

Self Cite

View full text Add to dashboard Cite

In the industries of petroleum extraction, a large volume of oily sludge is being generated. This waste is usually considered difficult to dispose of, causing environmental and economic issues. This study presented the novel experimental method of manufacturing mortar used in civil construction by cement and oily sludge ash (OSA). The defined method was described with a logical experimental study conducted to examine a feasible manufacturing method for casting cement-based mortars by partially replacing cement with OSA. Replacement concentrations for OSA ranged from 0 to 20 percent by cement weight, while the water-to-cement (w/c) ratio was varied from 0.4 to 0.8, and the amount of sand was kept constant. The strengths and absorption rate of the mortar were monitored for 28 days. The OSA contains a crystalline structure with packs of angular grains. Because of OSA in the cement-based mortar mixtures and water-to-cement ratios, the mechanical strength was improved significantly. However, the water absorption trend increased linearly. Using variance analysis, the influence of OSA and w/c ratio on the behavior of mortar was acquired. The developed models were significant for all p-value reactions of <5%. Numerical optimization results showed that the best mixture can be obtained by replacing 8.19 percent cement with OSA and 0.52 as a ratio of w/c.

show abstract

Assessing the Impact of Petroleum Sludge Ash on the Compressive Strength of Fly Ash-Palm Oil Clinker Geopolymer Mortar

Ismail,

Kusbiantoro,

Tajunnisa

2024

Lecture Notes in Civil Engineering

View full text Add to dashboard Cite

Effects of petroleum sludge ash in fly ash-based geopolymer mortar

Cited by 14 publications

References 49 publications

Sugarcane Bagasse as a Co-Substrate with Oil-Refinery Biological Sludge for Biogas Production Using Batch Mesophilic Anaerobic Co-Digestion Technology: Effect of Carbon/Nitrogen Ratio

Sugarcane Bagasse as a Co-Substrate with Oil-Refinery Biological Sludge for Biogas Production Using Batch Mesophilic Anaerobic Co-Digestion Technology: Effect of Carbon/Nitrogen Ratio

Optimization of Cement-Based Mortar Containing Oily Sludge Ash by Response Surface Methodology

Assessing the Impact of Petroleum Sludge Ash on the Compressive Strength of Fly Ash-Palm Oil Clinker Geopolymer Mortar

Contact Info

Product

Resources

About