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您的检索式：作者名="Mohd. Ali Hashim"
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| 1 | Comparison of a plant based natural surfactant with SDS for washing of As(V) from Fe rich soil显示文摘This study explores the possible application of a biodegradable plant based surfactant,obtained from Sapindus mukorossi,for washing low levels of arsenic(As)from an iron(Fe)rich soil.Natural association of As(V)with Fe(III)makes the process difcult.Soapnut solution was compared to anionic surfactant sodium dodecyl sulfate(SDS)in down-flow and a newly introduced suction mode for soil column washing.It was observed that soapnut attained up to 86%efciency with respect to SDS in removing As.Full factorial design of experiment revealed a very good fit of data.The suction mode generated up to 83 kPa pressure inside column whilst down-flow mode generated a much higher pressure of 214 kPa,thus making the suction mode more efcient.Micellar solubilisation was found to be responsible for As desorption from the soil and it followed 1st order kinetics.Desorption rate coefcient of suction mode was found to be in the range of 0.005 to 0.01,much higher than down-flow mode values.Analysis of the FT-IR data suggested that the soapnut solution did not interact chemically with As,ofering an option for reusing the surfactant.Soapnut can be considered as a soil washing agent for removing As even from soil with high Fe content. | Soumyadeep Mukhopadhyay Mohd. Ali Hashim Jaya Narayan Sahu Ismail Yusoff Bhaskar Sen Gupta | 2013 | Journal of Environmental Sciences2013，25，11： | 5 |
| 2 | A comparative study of biopolymers and alum in the separation and recovery of pulp fibres from paper mill effluent by flocculation显示文摘Recovery of cellulose fibres from paper mill effluent has been studied using common polysaccharides or biopolymers such as Guar gum,Xanthan gum and Locust bean gum as flocculent.Guar gum is commonly used in sizing paper and routinely used in paper making.The results have been compared with the performance of alum,which is a common coagulant and a key ingredient of the paper industry.Guar gum recovered about 3.86 mg/L of fibre and was most effective among the biopolymers.Settling velocity distribution curves demonstrated that Guar gum was able to settle the fibres faster than the other biopolymers;however,alum displayed the highest particle removal rate than all the biopolymers at any of the settling velocities.Alum,Guar gum,Xanthan gum and Locust bean gum removed 97.46%,94.68%,92.39%and 92.46%turbidity of raw effluent at a settling velocity of 0.5 cm/min,respectively.The conditions for obtaining the lowest sludge volume index such as pH,dose and mixing speed were optimised for guar gum which was the most effective among the biopolymers.Response surface methodology was used to design all experiments,and an optimum operational setting was proposed.The test results indicate similar performance of alum and Guar gum in terms of floc settling velocities and sludge volume index.Since Guar gum is a plant derived natural substance,it is environmentally benign and offers a green treatment option to the paper mills for pulp recycling. | Sumona Mukherjee Soumyadeep Mukhopadhyay Agamuthu Pariatamby Mohd. Ali Hashim Jaya Narayan Sahu Bhaskar Sen Gupta | 2014 | Journal of Environmental Sciences2014，26，9： | 2 |
| 3 | Phase Behavior of Ionic Liquid with Thiophene Based Binary System Predicted Using COSMO-RS Model显示文摘 | Anantharaj Ramalingam Tamal Banerjee Mohd. Ali Hashim | 2013 | Journal of Environmental Science and Engineering(B)2013，2，12： | 0 |
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