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Md.Milon Hossain,Md.Iqbal Mahmud,Md.Shohan Parvez,Haeng Muk Cho 대한환경공학회 2013 Environmental Engineering Research Vol.18 No.3
Treatment of textile wastewater by the electrocoagulation (EC) process is being investigated by this experimental study. The objective of this experiment is to observe the efficiency of the EC process in removing chemical oxygen demand (COD) and turbidity. In this experiment an iron electrode is used in the EC process, and different working parameters such as pH, current density and operating time were studied in an attempt to achieve a higher removal capacity. The results show that the maximum COD removal occurred at neutral pH at operating time 30 min. COD and turbidity removal reaches at maximum, with optimum consumption of electrodes, between current density 85.95 A/m2, and only trace amounts of metals were determined in the EC treated effluent.
Md Luthfar Rahman Liman,M. Tauhidul Islam,Md. Milon Hossain,Priti Sarker 한국섬유공학회 2020 Fibers and polymers Vol.21 No.10
The practice of natural colorants for polyester fabric dyeing has been rampantly rising in our consumer fashion. Inthis study, two separate natural colorants were extracted from watermelon (Citrullus lanatus) rind (WRS) and flesh (WFS)for polyester coloration. The optical and colorimetric properties of saps and dyed fabrics, dye fiber bonding phenomena,chromophores diffusion behaviors, color-fastness, ecological and economic aspects were examined through various analysesand the corresponding mechanisms were proposed. A wide range of chromophores diffusion was noticed for severalparameter variations and the resulting diffusions were ranging from 42.67 to 83.13 %. Interestingly, WRS and WFS robustthe UV shielding properties into the dyed fabric and the recorded UPF rating was found to be above 50. All color-fastnessproperties including sublimations were very good to excellent (4 to 4/5) except lightfastness. Finally, the ecological andeconomic aspects of WRS/WFS dyeing were also compared with commercial disperse dyes.
Md. Rakib Hasan,Nizam Uddin,Tanmoy Sana,Md. Monir Hossain,Milon Mondal,Ismat Jarin Kanta,M. S. K. Choudhuri 경희대학교 융합한의과학연구소 2018 Oriental Pharmacy and Experimental Medicine Vol.18 No.2
The aim of our current study is to investigate the analgesic and anti-inflammatory potentials of methanolic extract of Mallotus repandus stem (MSM) using different in vivo assay models. Analgesic and anti-inflammatory activities were evaluated using acetic acid induced writhing test, tail immersion method, hot-plate test, formalin induced hind paw licking, xylene induced ear edema, carrageenan-induced paw edema and cotton pellet induced granuloma in animal model at doses of 500, 1000 and 2000 mg/kg body weight. MSM showed significant (p < 0.05) analgesic activities in the acetic acid-induced writhing tests in mice. In the tail immersion and hot-plate test, MSM significantly prolonged the latency period (p < 0.05). Significant (p < 0.05) formalin induced paw licking inhibition was observed at different doses and the highest 74.47% inhibition was observed at 2000 mg/kg. Besides, MSM showed significant (p < 0.05) anti-inflammatory responses in carrageenan induced paw edema, xylene induced ear edema and cotton pellet induced granuloma methods. These findings suggest that the plant may be a potential source for the development of new analgesic and anti-inflammatory agent.