Calcareous and Gypsum Soils Lead Removal Using Two-Steps Washing

Abstract The soil washing technique is considered one of the quick and effective techniques for treating soil contaminated with heavy metals. In this study, EDTA-Na2 and Oxalic were used as washing solutions to removing Pb from calcareous and gypsum soils contaminated with Pb only and with Pb in addition to the used engine oil. The soil samples were contaminated with different concentrations of Pb only using Pb(NO3)2 to soils sample for each concentration separately then the sample was divided into two equal parts. The first part represents the calcareous and gypsum soil samples contaminated with Pb. The second part was taken after air-dried, and then the used engine oil was added and homogenized well. Five parameters (pH, contact time, Pb concentrations, temperature, and liquid/solid ratio) were applied to test their effect on Pb removal. In general, the results of this study varied based on the effect of the variables.

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Bio-remedial Effect of Specific Micro-organisms (Bacteria) on Used Engine Oil: A Case Study of Some Mechanic Workshops in Maiduguri Metropolitan Council (MMC)

European Journal of Environment and Earth Sciences ◽

10.24018/ejgeo.2020.1.3.11 ◽

2020 ◽

Vol 1 (3) ◽

Author(s):

Ibrahim Yerima ◽

G. A. Felix ◽

M. I. Ahmad

Keyword(s):

Zea Mays ◽

Agar Medium ◽

Bacterial Species ◽

Soil Samples ◽

Engine Oil ◽

Bacillus Sp ◽

Used Engine Oil ◽

Micro Organisms ◽

Effective Growth

The potential of three micro-organisms (Pseudomonas, Streptococcus and Bacillus sp) were isolated from hydrocarbon contaminated soil and were evaluated for their biodegradation ability. The rate of biodegradation of the engine oil in the soil samples were exposed to used engine oil with different exposure rates of 5,10,15 and 20 years were studied for a period of three (3) weeks under greenhouse experiment. The soil samples were obtained from four different mechanic workshops in M.M.C and they were plated on nutrients agar and oil agar medium to isolate the bacterial species from the spilled soil samples. All the micro-organisms used in this study showed their abilities to remediate soil exposed to used engine oil and the remediated soil samples were able to support the growth of Maize ( Zea mays) after 10 years effective growth

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Bioremediation of Spent Engine Oil on Selected Contaminated Soils within Ilorin Metropolis

Advanced Journal of Graduate Research ◽

10.21467/ajgr.8.1.91-104 ◽

2020 ◽

Vol 8 (1) ◽

pp. 91-104

Author(s):

Elizabeth Adeyinka AJIBOYE ◽

Hikmat Omolara SULAYMAN ◽

Abdullahi Taiwo AJAO

Keyword(s):

Heavy Metals ◽

Organic Matter ◽

Organic Carbon ◽

Contaminated Soils ◽

Physicochemical Parameters ◽

Soil Samples ◽

Engine Oil ◽

Biochemical Tests ◽

Spent Engine Oil ◽

Before And After

The research aimed to investigate the bioremediation of spent engine oil on selected contaminated soils within Ilorin metropolis. To achieve this, soil samples were collected from three (3) mechanic workshops along Taiwo axis within the metropolis. The soil samples were then subjected to bioremediation using the land-farming approach. The physicochemical parameters of the soil samples before and after bioremediation were analyzed using standard methods. Bacteria were isolated using standard procedures and identified using biochemical tests and molecular methods. Results for the physicochemical parameters of the soil samples before bioremediation include particle size (all sandy in nature); pH (6.00 ± 0.14 - 6.20 ± 0.14); Organic carbon (14.65 ± 3.20 - 17.54 ± 1.87), Organic matter (33.50 ± 0.85 - 43.45 ± 9.12) and heavy metals (ND - 11.74 ± 0.07). Values after bioremediation for pH, organic carbon, organic matter and heavy metals were 8.25 ± 0.07 - 8.90 ± 0.14, 13.07 ± 0.05 - 13.25 ± 0.84, 37.25 ± 1.06 - 44.80 ± 1.13, ND - 9.40 ± 0.04 respectively. Values for bacterial count before and after bioremediation of the soil samples were 8.00 1.41 - 67.50 ± 2.12 x 105 CFU/mL and 6.50 ± 2.12 - 164.00 ± 11.31 x 105 CFU/mL respectively. Bacterial isolates were identified as Pseudomonas sp., Enterobacter sp., Acinetobacter sp., and Bacillus sp. while the hydrocarbon-utilizing bacteria were identified as Thalassospira mesophila strain JCM 18969; Pseudomonas fluorescens F113; Siccibacter turicensis LMG 23730; Pseudomonas Zeshuii strain KACC 15471; Pseudomonas stutzeri strain CGMCC 1.1803 and Marinobacter hydrocarbonoclasticus strain ATCC 49840. In conclusion, the bacteria isolates effectively bioremediated the spent engine oil contaminated soils with a reduction of hydrocarbon pollutants.

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Investigation of Heavy Metal (Lead) Removal from Aqueous Solution by Using Advanced Oxidation Process (Fenton)

Chemical Science International Journal ◽

10.9734/csji/2019/v27i230111 ◽

2019 ◽

pp. 1-7

Author(s):

Fahimeh Moghadam ◽

Asma Ghasemi Pourafshar

Keyword(s):

Heavy Metals ◽

Aqueous Solution ◽

Contact Time ◽

Advanced Oxidation Process ◽

Aqueous Media ◽

Elimination Rate ◽

Lead Removal ◽

Chronic Complications ◽

Food And Beverage ◽

Lead Metal

Background and Aim: Undoubtedly, controlling the maximum entry of heavy metals into the food is one of the measures which should be taken into account in order to maintain the food consumers' health and achieve the food safety. The sensitivity and importance of this issue are doubled due to the irreparable, acute and chronic complications of heavy metals which are classified according to the effects on the nervous system until the carcinogenesis in the human body. On the other hand, this issue is significantly important since these metals differently enter to crops such as tea, water, and rice and generally the food and beverage that are widely consumed. Therefore, the aim of this study is to remove heavy lead metal from aqueous solution by Fenton method. This study is an experimental study. The samples are synthesized in a collection of laboratories at the Faculty of Health, and the pH parameters, contact time and lead elimination rate and the optimal Fenton ratio are investigated. Results are analyzed using SPSS software and Charts are plotted by excel. The results showed that the best pH for removal of lead 5 and its best concentration is 30 mg/ L, and the optimal Fenton ratio is 1 to 5, as well as the best contact time for removal of lead from aqueous media for 10 minutes. The present study showed that the pH factor, contact time, Fenton concentration and lead in all four were effective in removing lead from aquatic solution.

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MgAl-LDH-biochar composites as a green sorbent for lead removal from water

Przegląd Naukowy Inżynieria i Kształtowanie Środowiska ◽

10.22630/pniks.2021.30.2.21 ◽

2021 ◽

Vol 30 (2) ◽

pp. 250-260

Author(s):

Intidhar Idan ◽

Jawad Al-Rifaie ◽

Hind Ewadh

Keyword(s):

Heavy Metals ◽

Contact Time ◽

Solid Wastes ◽

Lead Removal ◽

X Ray Diffraction ◽

Municipal Solid Wastes ◽

X Ray ◽

Initial Ph

The present study aims at the development of a green sorbent (MgAl-LDH-biochar) from the municipal solid wastes (cow bones) to remediate water from heavy metals. MgAl-LDH-biochar was characterized using X-ray diffraction (XRD), and it was used to remove lead at different pH, doses, contact time (Ct), and solution temperatures (St). The obtained results proved MgAl-LDH-biochar removes 99% of lead when the initial pH, Ct, St, and dose were 5.0, 80 min, 45°C, and 0.2 g·L–1, respectively.

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Biological Treatment of Used Engine Oil by Single and Mixed Bacterial Cultures Isolated from Soil of Mechanic Workshops

Journal of Biotechnology Research Center ◽

10.24126/jobrc.2018.12.1.556 ◽

2018 ◽

Vol 12 (1) ◽

pp. 115-123

Author(s):

Amel Hussein ◽

Saad Khudhair

Keyword(s):

Soil Samples ◽

Growth Patterns ◽

Engine Oil ◽

Gravimetric Analysis ◽

Bacterial Isolates ◽

Engine Oils ◽

Used Engine Oil ◽

Degrading Bacteria ◽

Spent Engine Oil ◽

Consortium Culture

The accumulation of hydrocarbon waste, such as used engine oils in environments, has many impacts on humans and other organisms, therefore many researches were achieved to degrade or remove or consume these pollutants. The aim of the current study is to get a local bacterial isolates has high ability to degrade the spent engine oil as a single or mixed culture. Five soil samples contaminated with spent engine oil were collected from mechanic workshops in Baghdad city to isolate degrading bacteria using Bushnell Hans medium (BHM), pH 7 with 5% of used engine oil. While the growth patterns and gravimetric analysis was used to reveal the ability of these isolates to degrade spent engine oil in liquid BHM medium. The best three isolates A4, B6 and D5 were identified and the optimal temperature and pH for biodegradation of spending engine oil were studied. Also, the consortium culture of three isolates was tested their ability to utilize spent engine oil under the same conditions for single isolate. Twenty five bacterial isolates were obtained from contaminated soil samples and three isolates appeared a maximum degradation rate 74.6, 70.2 and 78.5% respectively. The results from identification tests were showing these isolates belong to Bacillus sp., Acinetobacter sp. and Pseudomonas sp., respectively. The studied three isolates gave the best degradation when incubated at 30°C in BHM medium pH 7. While other results were indicated that consortium cultures are more effective 90.2% than all experiments that used single isolate.

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The potential of kyllinga erecta Schumach and Cyperus rotundus Linn. to remediate soil contaminated with heavy metals from used engine oil in Cameroon

International Journal of Phytoremediation ◽

10.1080/15226514.2018.1501339 ◽

2018 ◽

Vol 20 (13) ◽

pp. 1346-1353 ◽

Cited By ~ 1

Author(s):

A. Fontem Lum ◽

D. Chikoye

Keyword(s):

Heavy Metals ◽

Cyperus Rotundus ◽

Engine Oil ◽

Used Engine Oil

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Comparison of heavy metals in fresh and used engine oil

Petroleum Science and Technology ◽

10.1080/10916466.2018.1496105 ◽

2018 ◽

Vol 36 (18) ◽

pp. 1478-1481 ◽

Cited By ~ 1

Author(s):

Saif-ur-Rehman Kashif ◽

Aneesa Zaheer ◽

Fariha Arooj ◽

Zubair Farooq

Keyword(s):

Heavy Metals ◽

Engine Oil ◽

Used Engine Oil

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Removal of heavy metals (Cu, Cd and Zn) from contaminated soils using EDTA and FeCl3

Global NEST Journal ◽

10.30955/gnj.001732 ◽

2016 ◽

Vol 18 (1) ◽

pp. 98-107 ◽

Cited By ~ 11

Keyword(s):

Heavy Metals ◽

Contaminated Soils ◽

Extraction Procedure ◽

Soil Washing ◽

Nitrilotriacetic Acid ◽

Coarse Grained ◽

Metal Extraction ◽

Fine Grained ◽

Solid Ratio ◽

Fine Grained Soil

Environmental pollution caused by heavy metals from different industrial activities constitutes a serious risk for the environment. Soils contaminated with metals, such as Cu, Cd and Zn, are often subjected to physical or chemical remediation procedures to purify soils from these metals. Typical chelating agents used for metal extraction and soil washing generally include ethylene-diaminetetraacetic acid nitrilotriacetic acid, diethylenetriaminepentaacetic acid and citric acid. The subject study evaluating the potential of soil washing methods using EDTA and ferric chloride on two types of soils (coarse grained, fine grained). The effects of operating parameters, such as liquid/solid ratio, soil washing chemicals and washing time were examined. In extraction procedure of Cd (266 mg kg-1), Cu (194 mg kg-1) and Zn (497 mg kg-1) from contaminated coarse grained soil with using 0.01 M FeCl3 washing solution (liquid/solid ratio 20) for 2 hours, contaminants were removed 96.66%, 90.02% and 98.25%, respectively. In extraction procedure of Cd (218 mg kg-1), Cu (153 mg kg-1) and Zn (441.6 mg kg-1) from contaminated fine grained soil with using 0.01 M FeCl3 washing solution (liquid/solid ratio 20) for 2 hours, contaminants were removed 98.18%, 97.48% and 98.05%, respectively. Better removal efficiencies have been obtained by using FeCl3. These results confirmed the effectiveness of the soil-washing method with FeCl3 in remediating heavy metals (Cu, Cd and Zn) from different types of soil.

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Parameters Affecting Dye Adsorption - Using Graphene Coated Sand (GSC)

International Journal of Science and Engineering Invention ◽

10.23958/ijsei/vol04-i02/01 ◽

2018 ◽

Vol 4 (02) ◽

Author(s):

Seroor Atalah Khaleefa Alia ◽

Dr. Mohammed Ibrahimb ◽

Hussein Ali Hussein

Keyword(s):

Heavy Metals ◽

Contact Time ◽

Organic Dyes ◽

Low Cost ◽

Dye Adsorption ◽

Contaminated Water ◽

Maximum Adsorption Capacity ◽

Engineering Designs ◽

Heavy Metals Ions ◽

Coated Sand

Adsorption is most commonly applied process for the removal of pollutants such as dyes and heavy metals ions from wastewater. The present work talks about preparing graphenic material attached sand grains called graphene sand composite (GSC) by using ordinary sugar as a carbon source. Physical morphology and chemical composition of GSC was examined by using (FTIR, SEM, EDAX and XRD). Efficiency of GSC in the adsorption of organic dyes from water was investigated using reactive green dye with different parameters such as (ph, temperature, contact time and dose). Adsorption isotherm was also studied and the results showed that the maximum adsorption capacity of dye is 28.98 mg/g. This fast, low-cost process can be used to manufacture commercial filters to treat contaminated water using appropriate engineering designs.

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