Modified Clay Filters for Purification of Petroleum Products Contaminated Water

2021 ◽  
Vol 107 ◽  
pp. 55-63
Author(s):  
Kebone Revival Mofokeng ◽  
Muhammad Falalu Yahaya ◽  
Joshua Osuigwe Madu ◽  
Florence Nkiruka Chukwudi ◽  
Samuel Ojo ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Propylene Carbonate ◽  
Organic Pollutants ◽  
Rural Areas ◽  
Petroleum Products ◽  
Polluted Water ◽  
Contaminated Water ◽  
Dodecanoic Acid ◽  
Pore Former ◽  
Poly Propylene

Some organic pollutants change the color, smell, and other characteristics of water leaving it undesirable for use. However, other organic pollutants do not change the physical properties of the water, yet, they make the water non-useful. This study was carried out to determine the characteristics of petroleum contaminated water and how it can be purified using economical filters for possible reuse in rural areas of the Niger Delta, of Nigeria. The filters were made from rice husk ash, and white clay, as main materials, while calcium carbonate and poly (propylene carbonate) were used as binders and pore former. The water samples were tested for conductivity, turbidity, pH, heavy metals, and total hydrocarbon contents. The results showed a significant decrease in the amount of petroleum/organic pollutants present in the water sample before purification. The filter candle made using poly (propylene carbonate) as a binder was found to be the most efficient in removing organic pollutants, but it was not very effective in the removal of heavy metals and also, the pH of the filtrate became more acidic. Filtrates from other filters, however, had pH in an acceptable range. Dodecanoic acid and hexadecanoic acid were found to be removed from the polluted water using the filters.

scholarly journals Effect of polluted water on soil and plant contamination by heavy metals in El-Mahla El-Kobra, Egypt

Solid Earth ◽  
2016 ◽  
Vol 7 (2) ◽  
pp. 703-711 ◽  
Author(s):  
Esawy Kasem Mahmoud ◽  
Adel Mohamed Ghoneim
Keyword(s):  
Heavy Metals ◽  
Cynodon Dactylon ◽  
Oxygen Demand ◽  
Polluted Water ◽  
Contaminated Water ◽  
Water And Sediment ◽  
Bioaccumulation Coefficient ◽  
The Mean ◽  
Very High ◽  
Irrigated Soils

Abstract. The discharge of untreated waste water in Zefta drain and drain no. 5 is becoming a problem for many farmers in the El-Mahla El-Kobra area, Egypt. The discharged water contains high levels of contaminants considered hazardous to the ecosystem. Some plants, soil, water, and sediment samples were collected from the El-Mahla El-Kobra area to evaluate the contamination by heavy metals. The results showed that the heavy metals, pH, sodium adsorption ratio (SAR), biochemical oxygen demand (BOD), and chemical oxygen demand (COD) in the water of Zefta drain and drain no. 5 exceeded permissible limits for irrigation. In rice and maize shoots grown in soils irrigated by contaminated water from Zefta drain and drain no. 5, the bioaccumulation factors for Cd, Pb, Zn, Cu, and Mn were higher than 1.0. The heavy metals content of irrigated soils from Zefta drain and drain no. 5 exceeded the upper limit of background heavy metals. In this study, the mean contaminant factor values of the drain no. 5 sediments revealed that Zn, Mn, Cu, Cd, Pb, and Ni > 6, indicating very high contamination. The bioaccumulation coefficient values of Cynodon dactylon, Phragmites australis, and Typha domingensis aquatic plants growing in Zefta drain are high. These species can be considered as hyperaccumulators for the decontamination of contaminated water.

scholarly journals Assessment of Heavy Metals in Water Contaminated with Petroleum Products in Keffi Local Government Area, Nasarawa State, Nigeria.

2020 ◽  
Vol 3 (3a) ◽  
pp. 38-45
Author(s):  
JK Makpo ◽  
SM Ameh ◽  
A Asarya ◽  
YP Gambo
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Local Government ◽  
Water Samples ◽  
Petroleum Products ◽  
Local Government Area ◽  
World Health ◽  
P Value ◽  
Contaminated Water ◽  
Significant Difference

This work assessed the presence of heavy metals in water contaminated with petroleum products in Keffi Local Government Area. Two water sampling station were selected based on the stratified method of sampling of Antau River. Station A is located along Federal Government College Keffi popularly known as Antau Bridge where Agricultural and mechanical activities, with sales of petroleum product take place. Station B was located at Dadin Kowa known as Gada Manu where human activities such as bathing and washing takes place which served as control. The distance between stations is 1km. The procedural plan of this study was monthly sampling of water from both Stations. Materials such as funnel, sampling container, distilled water, conical flask, filter paper, 50ml polypropylene centrifuge tube, cooler were used. Heavy metal concentration was determined using X – ray Fluorescent Spectroscopy (XRF) at the Center for Energy Research and Training (CERT), Ahmadu Bello University Zaria. The water parameters of the four samples were determined using the Extech instrument. The result on Physico – chemical parameters revealed the values obtained from contaminated water samples to be pH (7.31), Dissolved Oxygen (1.14), Electrical Conductivity (8.22), Total Dissolved Solid (4.13), Temperature (27.45) and Salinity (0.091) while the controlled Station at point B were pH (7.43), DO (7.35), EC (3.14), TDS (1.54), Temperature (26.75), Salinity (0.o94) respectively. From the result obtained, the heavy metal contaminated samples had the following values: Mg (29.31±), Al (218.69±), Si (230.12±), S (1153.65±), Cl (54.25±), Ca (106.56±), Ti (23.66±), Cr (3.15±), Fe (15.92±), Cd (7.54±). For the control sample at point B, the following values were obtained: Mg (27.49±), Al (223.71±), Si (243.21±), S (94.84±), Cl (23.52±), Ca (28.44±), Ti (32.99±), Fe (16.63±), Cd (7.67±) respectively. The P-value was 0.8105 (p>0.05) for the water quality parameters while for the concentration of heavy metal P-value was 0.2054 (p>0.05). This implies that there was no significant difference between the concentrations of elements. However, the concentration values of heavy metals in the contaminated water at Station A and control water samples at Station B were higher than the World Health Organization values (Standard) for drinking water

scholarly journals Chemical Analysis of Rock and Water from dug Wells in a Residential Area in Lagos State, Nigeria

2015 ◽  
Vol 7 (2) ◽  
pp. 122
Author(s):  
Mopelola Omotoso ◽  
Ibrahim Amoo
Keyword(s):  
Heavy Metals ◽  
Underground Water ◽  
Polluted Water ◽  
Contaminated Water ◽  
Adsorbent Dosage ◽  
Lead And Cadmium ◽  
Metals Removal ◽  
Lagos State ◽  
Dug Wells ◽  
Cadmium And Lead

Samples of rock deposit dug out from wells at Alimosho local government in Lagos state, Nigeria were characterized for chemical composition and ultimate utilization. Fourier Transform Infrared Spectroscopy (FTIR), X-Ray diffraction (XRD) and Atomic Absorption Spectroscopy (AAS) were used to identify the rock as a mixed clay rock containing 35.04% Illite, 25.64% Illite plus Quartz, 22.20% Kaolinite and 17.09% Feldspar. This was corroborated by cation determination that showed the rock to be predominantly clayey rock. The mean concentrations of lead and copper in water of the wells in the rock location are 0.004mg/L and 0.05mg/L respectively while cadmium is less than detectable limit. The well water in the area studied is therefore not contaminated by these heavy metals. Heavy metals removal by the mixed clay from polluted underground water was studied using AAS. A general increase of sorption was observed with increase in the adsorbent dosage. 20g of the rock adsorbed a higher percentage of copper (80.23%) than lead and cadmium that were 70.25% and 65.83% respectively. The percentage of heavy metals adsorbed confirms the use of mixed clay minerals as a contaminants removal from the underground polluted water. The rock adsorbed copper readily than cadmium and lead. The maximum amount of lead removed from the contaminated underground water of the defunct battery site across the adsorbent dosage (5g, 10g, 15g and 20g) were 1.20mg/L, 3.19mg/L, 3.69mg/L and 4.09mg/L respectively indicating the effect of increase in adsorbent dosage in remediating the lead contaminated water. This data showed that the rock can be used to remove these heavy metals from contaminated water.

scholarly journals A review: Water pollution by heavy metal and organic pollutants: Brief review of sources, effects and progress on remediation with aquatic plants

2019 ◽  
pp. 5-38 ◽  
Author(s):  
Isiuku Beniah Obinna ◽  
*Enyoh Christian Ebere
Keyword(s):  
Heavy Metals ◽  
Aqueous Solutions ◽  
Organic Pollutants ◽  
Aquatic Plants ◽  
Organic Contaminants ◽  
Aquatic Plant ◽  
Plant Performance ◽  
Toxic Chemicals ◽  
Polluted Water ◽  
Practical Applications

Heavy metals and organic pollutants are ubiquitous environmental pollutants affecting the quality of soil, water and air. Over the past 5 decades, many strategies have been developed for the remediation of polluted water. Strategies involving aquatic plant use are preferable to conventional methods. In this study, an attempt was made to provide a brief review on recent progresses in research and practical applications of phytoremediation for water resources with the following objectives: (1) to discuss the toxicity of toxic chemicals pollution in water to plant, animals and human health (2) to summarise the physicochemical factors affecting  removal of toxic chemicals such as heavy metals and organic contaminants in aqueous solutions by aquatic plants; (3) to summarise and compare the removal rates of heavy metals and organic contaminants in aqueous solutions by diverse aquatic plants; and (4) to summaries chemometric models for testing aquatic plant performance.

scholarly journals Phytoremediation of electroplating wastewater by vetiver grass (Chrysopogon zizanoides L.)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Andhika Puspito Nugroho ◽  
Erni Saurmalinda Butar Butar ◽  
Ekaputra Agung Priantoro ◽  
Lies Sriwuryandari ◽  
Zulfa Berliana Pratiwi ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Elimination Rate ◽  
Translocation Factor ◽  
Absorption Spectrometry ◽  
Polluted Water ◽  
Contaminated Water ◽  
Electroplating Wastewater ◽  
Uptake Rates ◽  
Water Ecosystems ◽  
Different Levels

AbstractThe electroplating industry generates wastewater containing a variety of heavy metals which potentially contaminate water ecosystems. The available and well-known electroplating wastewater treatments are considered as an expensive and less effective method, therefore phytoremediation was used as an alternative friendly solution. This study aims to evaluate the uptake and elimination rate of heavy metals by vetiver (Chrysopogon zizanoides L.) on metal-polluted water. Vetiver was planted in artificial electroplating wastewater containing different levels (low, medium, high) of chromium (Cr) and nickel (Ni). Water, roots, and shoots were collected periodically to determine Cr and Ni contents using Atomic Absorption Spectrometry (AAS). Metal accumulation and elimination rate, Bioconcentration Factor (BCF), Biological Absorption Coefficient (BAC), and Translocation Factor (TF) were calculated to evaluate plant’s effectiveness in metal remediation processes. The results showed that vetiver (C. zizanoides L.) was able to remove 61.10% Cr and 95.65% Ni on metal-contaminated water. The highest uptake rates for Cr and Ni are 127.21 mg/kg/day and 15.60 mg/kg/day respectively, while the elimination rates for Cr and Ni tend to slow 1.09 mg/kg/day and 12.24 mg/kg/day respectively. Vetiver BCF, BAC, and TF values on Cr and Ni contaminated water were greater than 1, which indicates that vetiver work through phytoextraction and phytostabilization to treat metals. The findings showed that vetiver has promise as a phytoremediation agent thus providing implication for electroplating wastewater treatment.

scholarly journals EXPERIMENTAL RESEARCH ON APPLICATION OF YEAST IN HEAVY METAL REMOVAL FROM POLLUTED WATER

2020 ◽  
Author(s):  
Monika Stonkutė
Keyword(s):  
Heavy Metals ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Petroleum Products ◽  
Radioactive Isotopes ◽  
Organic Fertilizers ◽  
Alternative Methods ◽  
Polluted Water ◽  
Biological Origin ◽  
Cadmium And Lead

Both surface and groundwater can be contaminated with a variety of chemicals, making it dangerous to use water for domestic usage. Water can be contaminated with heavy metals (HM), petroleum products, detergents, radioactive isotopes, mineral or organic fertilizers. Copper, cadmium and lead are some of the most commonly emitted heavy metals from various industries. Adsorption is considered to be one of the alternative methods of treatment of wastewater contaminated with heavy metals. The use of adsorbents of biological origin for the removal of heavy metals from wastewater is a promising method due to the low costs, rapid biodegradation and easy availability of adsorbents.

scholarly journals DFT: B3LYP/ LANL2DZ Study for the Removal of Fe, Ni, Cu, As, Cd and Pb with Chitosan

2020 ◽  
Vol 10 (6) ◽  
pp. 7002-7010 ◽  
Keyword(s):  
Heavy Metals ◽  
Density Functional ◽  
Cost Effective ◽  
Basis Set ◽  
Polluted Water ◽  
Bandgap Energy ◽  
Contaminated Water ◽  
Functional Theory ◽  
Metals Removal ◽  
Carcinogenic Effects

Human activities are responsible for the existence of heavy metals in the environment. The accumulation of these metals in the environment causes several risks, such as toxicological, mutagenic, and carcinogenic effects. Chitosan (Cs) based materials have been explored its competitive efficacy in heavy metals removal from contaminated water. In this study, an attempt is presented to develop a natural, reliable, and cost-effective biopolymer structure of Cs with a high ability to entrap some heavy metals, which can be found in polluted water. The correlation between Cs-heavy metals and its stability was studied by density functional theory (DFT) using B3LYP together with the basis set LANL2DZ. The observed results revealed that the bandgap energy values for Cs, Cs- Fe, Cs-Ni, Cs-Cu, Cs-As, Cs-Cd and Cs-Pb were 2.571, 0.6147, 0.7176, 0.3396, 0.6648, 1.5007 and 0.4128 eV, respectively. The later showed that Cs structure has high selectivity and binding affinity to Cu and Pb hydrated metals, respectively rather than Fe, Ni, As and Cd. The examined correlation between Cu and Pb with Cs revealed that Cs could be applied for sensing and removing of Cu and Pb from wastewater.

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

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.

Utilisation of Biomass and Hybrid Biochar from Elephant Grass and Low Density Polyethylene for the Competitive Adsorption of Pb(II), Cu(II), Fe(II) and Zn(II) from Aqueous Media

2020 ◽  
Vol 13 ◽  
Author(s):  
Joshua O. Ighalo ◽  
Lois T. Arowoyele ◽  
Samuel Ogunniyi ◽  
Comfort A. Adeyanju ◽  
Folasade M. Oladipo-Emmanuel ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Removal Efficiency ◽  
Contact Time ◽  
Competitive Adsorption ◽  
Adsorption Process ◽  
Aqueous Media ◽  
Polluted Water ◽  
Batch Adsorption ◽  
Order Kinetic ◽  
Elephant Grass

Background: The presence of pollutants in polluted water is not singularized hence pollutant species are constantly in competition for active sites during the adsorption process. A key advantage of competitive adsorption studies is that it informs on the adsorbent performance in real water treatment applications. Objective: This study aims to investigate the competitive adsorption of Pb(II), Cu(II), Fe(II) and Zn(II) using elephant grass (Pennisetum purpureum) biochar and hybrid biochar from LDPE. Method: The produced biochar was characterised by Scanning Electron Microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FTIR). The effect of adsorption parameters, equilibrium isotherm modelling and parametric studies were conducted based on data from the batch adsorption experiments. Results: For both adsorbents, the removal efficiency was >99% over the domain of the entire investigation for dosage and contact time suggesting that they are very efficient for removing multiple heavy metals from aqueous media. It was observed that removal efficiency was optimal at 2 g/l dosage and contact time of 20 minutes for both adsorbent types. The Elovich isotherm and the pseudo-second order kinetic models were best-fit for the competitive adsorption process. Conclusion: The study was able to successfully reveal that biomass biochar from elephant grass and hybrid biochar from LDPE can be used as effective adsorbent material for the removal of heavy metals from aqueous media. This study bears a positive implication for environmental protection and solid waste management.

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