Influence of magnetic treatment on the improvement of landfill leachate treatment

Othman, Fadil; Sohaili, Johan; Fauzia, Zulfa; Ni'am, Moh Faiqun

doi:10.1504/ijewm.2009.027407

Cited by 7 publications

(3 citation statements)

References 9 publications

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“…Rawabdeh et al (2014) pointed out that magnetically treated water significantly increased essential elements such as nitrogen, phosphorus and potassium uptake and their translocation when compared with plants irrigated with tap water that was non magnetically treated water. Othman et al (2009) also pointed out that magnetic treatment of landfill leachate improved the removal of suspended solid, chemical oxygen demand and biochemical oxygen demand by 60 to 80% using a magnetic field strength of 0.55 T (5,500 gauss).…”

Section: Introductionmentioning

confidence: 99%

Influence of Magnetized Water and Seed on Yield and Uptake of Heavy Metals of Tomato

Yusuf¹,

Sakariyah²,

Baiyeri³

2019

Not Sci Biol

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This study assessed influence of magnetized water (MW) and magnetized seed (MS) on yield and uptake of heavy metals of tomato. Tomato seeds were put on permanent magnet (1000 gauss) for 24 hours and water was allowed to flow through magnetic flux density 319 gauss. Tomato seeds (variety UC82B) were planted in 16 pots, thinned after 21 days to one tomato/pot and irrigated with MW or non-magnetized water (NMW). Four treatments used were MS and MW (T1), non-magnetized seed (NMS) and MW (T2), MS and NMW (T3), NMS and NMW (T4). A 1.0 litre of water was applied to tomato plant in a completely randomized design and each treatment was replicated 4 times. Yields and concentrations of cadmium, copper, chromium, iron, manganese, nickel, lead and zinc were determined from the tomato fruit. The mean yields for T1, T2, T3 and T4 were 288.1, 275.8, 176.6 and 200.1 g/pot, respectively. Mean concentrations of Iron for T1, T2, T3 and T4 were 0.015, 0.010, 0.010 and 0.010 mg/L, respectively. Mean concentrations of zinc for T1, T2 T3 and T4 were 0.030, 0.110, 0.115 and 0.125 mg/L. The values of copper, iron, lead, manganese and zinc for T2 were 0.02-0.03, 1.2-1.8, 0.03-0.07, 0.10-0.12 and 0.00-0.01 mg/L. The corresponding values for T4 were 0.02-0.02, 1.30-1.60, 0.04-0.04, 0.08-0.11 mg/L but Zn was not detected. Concentrations of heavy metals in the tomato were below FAO/WHO permissible limits. MW and MS increased tomato yield and didn’t increase uptake of heavy metals that could cause diseases to man.

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Section: Introductionmentioning

confidence: 99%

Influence of Magnetized Water and Seed on Yield and Uptake of Heavy Metals of Tomato

Yusuf¹,

Sakariyah²,

Baiyeri³

2019

Not Sci Biol

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“…With the application of external MFs or magnetic powder in the biological treatment process of the wastewater, the efficiency of the generation of sludge with higher density, have happened (Zaidi et al, 2014). 550 mT intensity of MFs reduces 60-80% of the biological oxygen demand (BOD) of the landfill leachate, for example (Othman et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Exposure of the static magnetic fields on the microbial growth rate and sludge properties in the complete-mix activated sludge process (a Lab-scale study)

Asgari

Seid‐Mohammadi

Shokoohi

et al. 2023

Preprint

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In this study, the effect of static magnetic fields (SMFs) on improving the performance of the activated sludge to enhance the microbial growth rate and improve sludge settling characteristics in the real operation conditions has been investigated. The effect of SMFs (15 mT), hydraulic retention time, the sludge age, the aeration time on mixed liquor suspended solids (MLSS), mixed liquor volatile suspended solids (MLVSS), α-factor, and pH in the complete-mix activated sludge (CMAS) process during 30 days of the operation were evaluated. There were not any differences between the mean concentration of MLSS in the case and control samples, however, the mean concentration of MLVSS in the case (1463.4 ± 419.2 mg/L) was more than the control samples (1244.1 ± 295.5 mg/L). Changes of the concentration of MLVSS over time, follow the first and second-order reaction with and without exposure of SMFs, respectively. However, the slope of the line in the case samples was 6.255 higher than the control samples. The mean of α-factor in the case samples increased by -0.001 higher than the control samples. Changes in pH in both groups of the reactors were not observed. 15 mT intensity of SMFs can promoted oxygen transfer to the biomass and, increase the concentration of MLVSS in the aeration reactor of CMAS. SMFs have a potential to be consider as an alternative method to stimulate the microbial growth rate in the aeration reactor and produce bioflocs with higher density in CMAS.

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“…Alkhazan and Sadddiq (2010) used magnetic field for treating lake water which had effect on the physical, chemical and microbiological properties of the lake water in Saudi Arabia. Othman et al (2009) stated that magnetic treatment of landfill leachate improved the removal of suspended solid, chemical oxygen demand and biochemical oxygen demand by 60 to 80 % using a magnetic field strength of 550 mT. Anne et al (2016) also pointed out that magnetic fields of 2 mT, 6 mT and 10 mT reduced the number of E.Coli by 50.9, 65.5 and 82.2%, respectively when compared to the control experiment after 6 hours of exposure to magnetic field.…”

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confidence: 99%

Effect of Magnetic Field and Moringa Seed Powder on Wastewater Treatment

Yusuf¹,

Obalowu²,

Abubakar³

2020

jasem

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This study was conducted to determine the effect of magnetic field (MF) and moringa seed powder (MSP) on wastewater treatment. Wastewater causes environmental and river pollution that are harmful to aquatic animals and toxic to man. Domestic wastewater was collected from the bathroom, University of Ilorin male hostel (Compound G). The wastewater was divided into four portions. First portion was allowed to flow through MF (100 mT) for 40, 60 and 80s. Second portion, 4 litres of the wastewater was poured into 5 litres capacity containers and 100, 150 and 200 mg/L of MSP was added to each container with 2 replicates. Third portion, 100, 150 and 200 mg/L of MSP was added to the wastewater after the wastewater was passed through MF for 40, 60 and 80 s and the fourth portion was the control experiment. Physical, chemical and bacteriological properties of the wastewater were determined after 2 hours. The range of reduction in turbidity for MSP, MF, combination of MSP and MF compared with the control experiment were 3.08-18.46, 9.00-23.08 and 20.03-23.08%, respectively. Reductions of total coliform were 84.21-88.42%, 36.84-47.37% and 75.26-87.89%. The range in reduction ammonia nitrate for MSP, MF, combination of MSP and MF compared with control experiment were 2.96-9.63, 0.00-1.48 and 6.67-8.89%. The values of BOD were 0.82-7.14, 0.82-2.45 and 2.24-8.37%. The results indicated that combination of MF and MSP reduced physicochemical and bacteriological properties of the wastewater. Combination of MSP and MF is recommended for treating wastewater before discharging into rivers. Keywords: wastewater, wastewater treatment, moringa, magnetized wastewater, water pollution

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Influence of magnetic treatment on the improvement of landfill leachate treatment

Cited by 7 publications

References 9 publications

Influence of Magnetized Water and Seed on Yield and Uptake of Heavy Metals of Tomato

Influence of Magnetized Water and Seed on Yield and Uptake of Heavy Metals of Tomato

Exposure of the static magnetic fields on the microbial growth rate and sludge properties in the complete-mix activated sludge process (a Lab-scale study)

Effect of Magnetic Field and Moringa Seed Powder on Wastewater Treatment

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