Dynamic Adsorptive Removal of Toxic Chemicals for Purification of Water

Defence Science Journal

Beer Singh²  D. Pandey²  Priti Malhotra¹  G.K. Prasad²  Amit Saxena² 

[1] University of Delhi, Delhi;Defence Research & Development Esmblishment, Gwnlior

关键词: Water purification;    carbon-treated water;    activecarbon;    carbon column;    water contamination;    potable water;    adsorption;    biological contaminants;    chemical contaminants;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: Defence Scientific Information & Documentation Centre

【 摘 要 】

To determine the efficiency of carbon column for the removal of toxic chemicals from water, the adsorption of phenol in concentration range from 0.600 glt to 1.475 gll was studied on active carbon of 80 CTC grade, 12 X 30 BSS particle size, 1280 m2/g surface area, and of coconut shell origin, under dynamic conditions at space velocity from 0.318 min-' to 4.24 min-' at 25 'C. The carbon column of 100 cm length and 2 cm diameter was found to be removing phenol from the aqueous solution of concentration 1.475 gll up to 84 min at 0.678 min-' space velocity at 5.0 ppm phenol breakthrough concentration. However, no phenol was observed in carbon-treated water after 80 min. The service life of carbon column (100 cm lengthX25 cm diameter) was assessed through the water purification system developed at the Defence Laboratory, Jodhpur and was determined to be 4.095 days with twoas factor of safety for 10 ppm initial concentration of phenol at 0.678 min-' space velocity (corresponding to water flow rate). Effects of carbon bed length, water flow rate, and the phenol concentration were also studied.

【 授权许可】

Unknown