Alternative Remediation for Raw Petroleum Sludge by Using Solidification/stabilization Method

2021 ◽  
Vol 47 (2) ◽  
pp. 216-224
Author(s):  
Noorafizah Binti Murshid ◽  
Nor Amani Filzah Binti Mohd Kamil ◽  
Aeslina Abdul Kadir ◽  
Noor Faiza Binti Roslee ◽  
Abdul Rahim Jalil
Keyword(s):  
Heavy Metals ◽  
Compressive Strength ◽  
Portland Cement ◽  
Water Absorption ◽  
Ordinary Portland Cement ◽  
Regression Coefficient ◽  
Leaching Test ◽  
Stabilization Method ◽  
Petroleum Sludge ◽  
Leaching Behaviour

In Malaysia, the current practise in treatment of petroleum sludge (PS) is by using incineration and the ash produce required further treatment for safely disposal into landfill. This process require high cost and treatment of raw sludge by using solidification/stabilization method was introduce. In this study, ordinary Portland cement was used as binder. This study focuses on physical properties (compressive strength, density test and water absorption) of S/S matrices and leaching behaviour (SPLP). Results shows adds up to of 30% PS gives results on strength which comply with minimum landfill dispose limit. Correlation between strength and density in regression coefficient of 80.99% and correlation between strength and water absorption shows strong regression of 93.12%. Leaching behaviours on 28 th day of curing showed the similar trend as on 7th day of curing. All heavy metals concentration in leaching test were below the USEPA standard except for Nickel and Chromium. Even though these two metals were exceeded the standard, Portland cement was capable to encapsulate Ni and Cr in mixture and reduce the concentration of 87% and 69% (PS 40%), respectively, compare to concentration in raw sludge. As, conclusion S/S method can be an alternative disposal method for raw sludge.

Study on Waterproof and Water-Resistant Properties of Gypsum

2012 ◽  
Vol 476-478 ◽  
pp. 1585-1588
Author(s):  
Hong Pan ◽  
Guo Zhong Li
Keyword(s):  
Compressive Strength ◽  
Flexural Strength ◽  
Portland Cement ◽  
Water Absorption ◽  
Ordinary Portland Cement ◽  
Experimental Results ◽  
Softening Coefficient

The comprehensively modified effect of cement, VAE emulsion and self-made acrylic varnish on mechanical and water-resistant properties of gypsum sample was investigated and microstructure of gypsum sample was analyzed. Experimental results exhibit that absolutely dry flexural strength, absolutely dry compressive strength, water absorption and softening coefficient of gypsum specimen with admixture of 10% ordinary Portland cement and 6% VAE emulsion and acrylic varnish coated on its surface can respectively reach to 5.11MPa , 10.49 MPa, 8.32% and 0.63, respectively.

scholarly journals The Effect of Nano Metakaolin Material on Some Properties of Concrete

2013 ◽  
Vol 6 (1) ◽  
pp. 50-61
Author(s):  
Amer M. Ibrahem ◽  
Shakir A. Al-Mishhadani ◽  
Zeinab H.Naji
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Portland Cement ◽  
Water Absorption ◽  
Thermal Activation ◽  
Ordinary Portland Cement ◽  
Splitting Tensile Strength ◽  
Kaolin Clay ◽  
Cement Ratio ◽  
Water Cement Ratio

This investigation aimed to study the effect of nano metakaolin ( NMK ) on some properties (compressive strength ,splitting tensile strength & water absorption ) of concrete. The nano metakaolin (NMK) was prepared by thermal activation of kaolin clay for 2 hours at 750 Ċ. The cement used in this investigation consists of ordinary Portland cement (OPC). The OPC was partially substituted by NMK of ( 3, 5 & 10%) by weight of cement. The C45 concrete was prepared , using water/cement ratio ( W/c) of (0.53) .The Water absorption was tested at 28 days while the tests (compressive strength ,splitting tensile strength) were tested at ages of (7, 28, 60,& 90) days . The compressive strength and splitting tensile strength of concrete with NMK were higher than that of reference concrete with the same W/c ratio.The improvement in the compressive strength when using NMK was (42.2, 55.8 , 63.1% ) at age 28 days for ( 3%, 5%, &10% ) replacement of NMK respectively whereas the improvement in the splitting tensile strength was (0% , 36% & 46.8 %) at age of 28 days when using (3%, 5%, &10% ) NMK respectively. The improvement in the water absorption was (16.6%, 21.79%, &25.6 ) when using (3, 5, &10% )NMK.

Effect and Action Mechanism of Superplasticizer on Foamed Cement

2014 ◽  
Vol 548-549 ◽  
pp. 1659-1662
Author(s):  
Chuan Wei Du ◽  
Guo Zhong Li
Keyword(s):  
Compressive Strength ◽  
Portland Cement ◽  
Water Absorption ◽  
Ordinary Portland Cement ◽  
Water Resistance ◽  
Action Mechanism ◽  
Foam Structure ◽  
Softening Coefficient ◽  
Chemical Foaming

The ordinary Portland cement was used to prepare foamed cement by the chemical foaming method. In this paper, the effect of superplasticizer on the water absorption and softening coefficient of foamed cement has been studied. The results show that the superplasticizer could improve foam structure, reduce the water absorption, and enhance the compressive strength and softening coefficient. The water resistance could be improved. When the dosage of superplasticizer was 0.3% (the quality of cement), compared with blank sample, the water absorption reduced 27.9%. When the softening coefficient was 0.68, softening coefficient increased 19.2%. The action mechanism of superplasticizer has been explored.

Compressive Strength and Shrinkage Behavior of Concrete Produced from Portland Limestone Cement with Water Absorption Polymer Balls

2020 ◽  
Vol 857 ◽  
pp. 83-88
Author(s):  
Ikram F. Ahmed Al-Mulla ◽  
Ammar S. Al-Rihimy ◽  
Mushriq F. Al-Shamaa
Keyword(s):  
Compressive Strength ◽  
Portland Cement ◽  
Water Absorption ◽  
Ordinary Portland Cement ◽  
Drying Shrinkage ◽  
Internal Curing ◽  
Early Age ◽  
Portland Limestone Cement ◽  
Limestone Cement ◽  
Shrinkage Behavior

From the sustainability point of view a combination of using water absorption polymer balls in concrete mix produce from Portland limestone cement (IL) is worth to be perceived. Compressive strength and drying shrinkage behavior for the mixes of concrete prepared by Ordinary Portland Cement (O.P.C) and Portland limestone cement (IL) were investigated in this research. Water absorbent polymer balls (WAPB) are innovative module in producing building materials due to the internal curing which eliminates autogenous shrinkage, enhances the strength at early age, improve the durability, give higher compressive strength at early age, and reduce the effect of insufficient external curing. Polymer balls (WAPB) had been used in the mixes of this research to provide good progress in compressive strength with time. Water absorption polymer balls have the ability to absorb water and after usage in concrete it will spill it out and shrink leaving voids of their own diameter before shrinking that lead to provide internal curing. The required quantity of water for the mixes were reduced due to the addition of water from the absorption polymers. Mixes produced from Portland limestone cement in this research show drying shrinkage results and compressive strength results lower than mixes made from ordinary Portland cement.

scholarly journals Cement Stabilized Soil Blocks Admixed with Sugarcane Bagasse Ash

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Jijo James ◽  
P. Kasinatha Pandian ◽  
K. Deepika ◽  
J. Manikanda Venkatesh ◽  
V. Manikandan ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Portland Cement ◽  
Water Absorption ◽  
Water Content ◽  
Sugarcane Bagasse ◽  
Ordinary Portland Cement ◽  
Standard Requirement ◽  
Stabilized Soil ◽  
Sugarcane Bagasse Ash ◽  
Dry Soil

The study involved investigating the performance of ordinary Portland cement (OPC) stabilized soil blocks amended with sugarcane bagasse ash (SBA). Locally available soil was tested for its properties and characterized as clay of medium plasticity. This soil was stabilized using 4% and 10% OPC for manufacture of blocks of size 19 cm × 9 cm × 9 cm. The blocks were admixed with 4%, 6%, and 8% SBA by weight of dry soil during casting, with plain OPC stabilized blocks acting as control. All blocks were cast to one target density and water content followed by moist curing for a period of 28 days. They were then subjected to compressive strength, water absorption, and efflorescence tests in accordance with Bureau of Indian standards (BIS) specifications. The results of the tests indicated that OPC stabilization resulted in blocks that met the specifications of BIS. Addition of SBA increased the compressive strength of the blocks and slightly increased the water absorption but still met the standard requirement of BIS code. It is concluded that addition of SBA to OPC in stabilized block manufacture was capable of producing stabilized blocks at reduced OPC content that met the minimum required standards.

scholarly journals Long-Term Leaching Behavior Of Petroleum Sludge Waste Containing Palm Oil Fuel Ash And Quarry Dust By Using Solidification/Stabilization Method

2019 ◽  
Vol 8 (6) ◽  
pp. 3586-3596
Keyword(s):  
Heavy Metals ◽  
Palm Oil ◽  
Leaching Test ◽  
Palm Oil Fuel Ash ◽  
Petroleum Sludge ◽  
Fuel Ash ◽  
Leaching Behaviour ◽  
Oil Fuel ◽  
Quarry Dust

In recent years, petroleum industry has generated huge amount of petroleum sludge. There are many types of treatment method in petroleum sludge (PS) and one of the treatments that arise the attention to treat the sludge is solidification/stabilization (S/S) method as it immobilizes and stabilizes the hazardous substances within a solid matrices. The main objectives of this research are to formulate the correct mixture of PS in S/S matrices and to stimulate the long-term leaching behaviour of S/S matrices in PS treatment with palm oil fuel ash (POFA) and quarry dust (QD) as partial cement and sand replacement respectively. The characterization of PS, POFA and QD were done by using X-Ray Fluorescence (XRF). Furthermore, different percentages of petroleum sludge (control, 0%, 5%, 10%, 20%, 30%) were incorporated with fixed 10% of POFA and 20% of QD replacement into S/S matrices. This research also includes a comparison of two different leaching test parameters such as liquid to surface area ratio, pH, and type of leaching solution on the samples. The leaching test conducted namely are Semi-Dynamic Leaching procedure (SDLP) and Static Leaching Test (SLT). The leachability results from SDLP and SLT indicated that all concentration for nine (9) heavy metals were below the permissible limit set by United States Environmental Protection Agency (USEPA, 1996) standards. In addition, the S/S effectiveness was evaluated by measuring effective diffusion coefficients (De) and leachability index (Lx). Results of S/S treatment shown that De values were lower and Lx values were higher than 8 thus the S/S can be disposed in sanitary landfill. As a conclusion, the results for the leaching behaviour of PS up to 10% incorporated with 10% of POFA replacement in cement and 20% of QD replacement in sand demonstrated minimum leaching of the heavy metals from S/S matrices. This indicated that S/S method could be an alternative disposal method for PS and has potential for replacing other

scholarly journals Long-Term Leaching Behavior of Petroleum Sludge Waste Containing Palm Oil Fuel Ash and Quarry Dust by Using Solidification/Stabilization Method

2019 ◽  
Vol 8 (6) ◽  
pp. 3840-3850
Keyword(s):  
Heavy Metals ◽  
Palm Oil ◽  
Leaching Test ◽  
Palm Oil Fuel Ash ◽  
Petroleum Sludge ◽  
Fuel Ash ◽  
Leaching Behaviour ◽  
Oil Fuel ◽  
Quarry Dust

In recent years, petroleum industry has generated huge amount of petroleum sludge. There are many types of treatment method in petroleum sludge (PS) and one of the treatments that arise the attention to treat the sludge is solidifica-tion/stabilization (S/S) method as it immobilizes and stabilizes the hazardous substances within a solid matrices. The main objectives of this research are to formulate the correct mixture of PS in S/S matrices and to stimulate the long-term leaching behaviour of S/S matrices in PS treatment with palm oil fuel ash (POFA) and quarry dust (QD) as partial cement and sand replacement respectively. The characterization of PS, POFA and QD were done by using X-Ray Fluorescence (XRF). Furthermore, different percentages of petroleum sludge (control, 0%, 5%, 10%, 20%, 30%) were incorporated with fixed 10% of POFA and 20% of QD replacement into S/S matrices. This research also includes a comparison of two different leaching test parameters such as liquid to surface area ratio, pH, and type of leaching solution on the samples. The leaching test conducted namely are Semi-Dynamic Leaching procedure (SDLP) and Static Leaching Test (SLT). The leachability results from SDLP and SLT indicated that all concentration for nine (9) heavy metals were below the permissible limit set by United States Environmental Protection Agency (USEPA, 1996) standards. In addition, the S/S effectiveness was evaluated by measuring effective diffusion coefficients (De) and leachability index (Lx). Results of S/S treatment shown that De values were lower and Lx values were higher than 8 thus the S/S can be disposed in sanitary landfill. As a conclusion, the results for the leaching behaviour of PS up to 10% incorporated with 10% of POFA replacement in cement and 20% of QD replacement in sand demonstrated minimum leaching of the heavy metals from S/S matrices. This indicated that S/S method could be an alternative disposal method for PS and has potential for replacing other

scholarly journals Utilization of Sugarcane Bagasse Ash from Power Co-generation Boilers as a Supplementary Cementitious Material

2021 ◽  
Vol 2 (2) ◽  
Author(s):  
Safiki Ainomugisha ◽  
Bisaso Edwin ◽  
Bazairwe Annet
Keyword(s):  
Compressive Strength ◽  
Portland Cement ◽  
Sugarcane Bagasse ◽  
Low Income ◽  
Ordinary Portland Cement ◽  
Construction Material ◽  
Sustainable Construction ◽  
Partial Replacement ◽  
Hardened Concrete ◽  
Sugarcane Bagasse Ash

Concrete has been the world’s most consumed construction material, with over 10 billion tons of concrete annually. This is mainly due to its excellent mechanical and durability properties plus high mouldability. However, one of its major constituents; Ordinary Portland Cement is reported to be expensive and unaffordable by most low-income earners. Its production contributes about 5%–8% of global CO2 greenhouse emissions. This is most likely to increase exponentially with the demand of Ordinary Portland Cement estimated to rise by 200%, reaching 6000 million tons/year by 2050.  Therefore, different countries are aiming at finding alternative sustainable construction materials that are more affordable and offer greener options reducing reliance on non-renewable sources. Therefore, this study aimed at assessing the possibility of utilizing sugarcane bagasse ash from co-generation in sugar factories as supplementary material in concrete. Physical and chemical properties of this sugarcane bagasse ash were obtained plus physical and mechanical properties of fresh and hardened concrete made with partial replacement of Ordinary Portland Cement. Cost-benefit analysis of concrete was also assessed. The study was carried using 63 concrete cubes of size 150cm3 with water absorption studied as per BS 1881-122; slump test to BS 1881-102; and compressive strength and density of concrete according to BS 1881-116. The cement binder was replaced with sugarcane bagasse ash 0%, 5%, 10%, 15%, 20%, 25% and 30% by proportion of weight. Results showed the bulk density of sugarcane bagasse ash at 474.33kg/m3, the specific gravity of 1.81, and 65% of bagasse ash has a particle size of less than 0.28mm. Chemically, sugarcane bagasse ash contained SiO2, Fe2O3, and Al2O3 at 63.59%, 3.39%, and 5.66% respectively. A 10% replacement of cement gave optimum compressive strength of 26.17MPa. This 10% replacement demonstrated a cost saving of 5.65% compared with conventional concrete. 

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