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- 저자 : Alaie Ebrahim (검색결과 2 건)
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Sadegh Ebadi,Karim Ghasemipanah,Ebrahim Alaie,Alimorad Rashidi,Alireza Khataee 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.98 No.-
A special type of reactor with a high active surface-to-volume ratio was used for investigation of organicpollutants degradation from a gasfield produced water by photoelectrocatalysis process. The GC–MSanalysis showed that there were more than 50 organic substances in this wastewater; therefore, COD wasconsidered as the target parameter for studying. A simple evaporation process used for decreasing highTDS of the wastewater reduced its electrical conductivity from 6300 mS/cm to 1100 mS/cm and also initialCOD decreased simultaneously from 9500 mg/L to 750 mg/L. Distilled wastewater from the evaporationprocess was treated again by the photoelectrocatalysis process using a coil type microreactor, and its CODdropped off to 143 mg/L. Instead of usual semiconductors in photoelectrocatalysis like TiO2, boron carbonnitride (BCN) nanosheets are used as a photocatalyst in this study. Investigating the impact of differentparameters on COD removal efficiency showed that the greatest COD removal efficiency (81%) wasobtained at residence time 15 min, pH = 3, applied cell voltage 20 V, electrical conductivity = 2500 mS/cmand H2O2 concentration of 8 mM.
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Qasem Mousavi Seyed,Reza Bandani Ali,Alaie Ebrahim 한국응용곤충학회 2020 Journal of Asia-Pacific Entomology Vol.23 No.4
The symbiotic microorganisms in the gut of termites play a key role in the digestion of cellulose and nitrogen metabolism. Therefore, disruption of these symbioses activity can open a door toward termite management. Thus, the current study aimed to exploit termite gut bacterial capacity in order to utilize it for efficient termite control. So, in the current study, gut bacteria of Microcerotermes diversus have been extracted, cultivated on both liquid and solid media, and screened with a range of antibiotics to find the most effective antibiotics. Results showed that chloramphenicol and nalidixic acid were the most effective antibiotics in preventing the colony unit formation of the gut bacteria amongst 16 antibiotics tested. Also, from two chitin synthesis inhibitors tested hexaflumuron with an LC 50 of 613.9 µg ml −1 was more toxic than lufenuron with an LC 50 of 1414.5 µg ml −1 . Thus, two antibiotics (chloramphenicol and nalidixic acid) were used simultaneously with a sub-lethal con centration of hexaflumuron against the termite and a variety of factors such as wood consumption rate, running speed, body water content, and tunneling activity were evaluated under laboratory conditions. Results showed that the combination of these two antibiotics (chloramphenicol and nalidixic acid) with hexaflumuron caused a significant decrease in termite consumption rate, running speed, and tunneling behavior, but didn’t affect the body water contents of termites. These results suggest that using a combination of antibiotic/s and hexaflumuron is a promising management practice to get a suitable control measure for the studied termite.
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