000 03407nam a2200409 4500
005 20260818113305.0
008 011298s1987 th r 0000|00eng d
035 _a.b10269642
099 9 _aAIT Thesis no. EV-87-5
100 0 _aPhontong Sujiwatthana
245 1 0 _aFactors affecting solidification of hazardous waste materials
260 _aBangkok :
_bAsian Institute of Technology,
_c1987
300 _a48 p.
490 1 _aThesis ;
_vno. EV-87-5
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development
502 _aThesis (M.Sc.) - Asian Institute of Technology, 1987
520 _aA cement-silica based technique, one of the solidification processes was studied for waste stabilization. Experiments were conducted in laboratory with four types of hazardous wastes including cadmium (Cd), lead (Pb), aldrin (AD) and chlordane (OHM). Effects of several factors on leachability and compressive strength of solidified mixture were investigated. Portland cement was used to mix with the waste for solidification. The factors studied were the amount of hazardous waste added, water/cement ratio, surface area/volume ratio, pH of extract solution and curing time of solidified samples . Samples were extracted with acidified solution following the extraction procedure. The amount of hazardous waste in leachate was found proportional to the initial amount of waste in a solidified sample. Increase of surface area/volume ratio of solidified sample or decrease in pH of extract solution increased the amount of leached waste. Increase of curing time did not much affect the amount of leached waste but increased the compressive strength mostly until 28 days. When the water/cement ratio was 0.5, amount of leached waste was the least but the sample had the most compressive strength. Also the greatest compressive strength was obtained when the l east amount of hazardous waste was added. Maximum allowable amount of waste to be added in solidification was estimated by modelling techniques . Also the treatment cost per unit we ight of waste was calculated for practical application.
650 0 _aSalvage (Waste, etc.)
700 1 _aShin, H. S.,
_eChairperson
700 0 _aChongrak Polprasert,
_eExamination Committee
700 0 _aSamorn Muttamara,
_eExamination Committee
710 2 _aFrench Government,
_eExamination Committee
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. EV-87-5
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B19199
907 _a.b10269642
_bmnait
_cx
902 _a241101
998 _b2
_c951012
_dm
_ea
_fx
_g0
945 _lmnait
945 _lmnait
945 _lmnarc
942 _c20
942 _c40
909 _aBarcode : 30050120748461
_bCREATED : 1994-05-17
_cRECORD # : i10332005
_dLPATRON : 0
_eLCHKIN : -
_f# RENEWALS : 0
_g# OVERDUE : 0
_hIUSE3 : 0
_iTOT CHKOUT : 0
_jTOT RENEW : 0
909 _aBarcode : 30050003043659
_bCREATED : 1994-05-17
_cRECORD # : i10332017
_dLPATRON : 1012587
_eLCHKIN : 1998-01-09
_f# RENEWALS : 0
_g# OVERDUE : 0
_hIUSE3 : 0
_iTOT CHKOUT : 2
_jTOT RENEW : 0
909 _aBarcode : 30050120223903
_bCREATED : 2016-09-05
_cRECORD # : i12973099
_dLPATRON : 0
_eLCHKIN : -
_f# RENEWALS : 0
_g# OVERDUE : 0
_hIUSE3 : 0
_iTOT CHKOUT : 0
_jTOT RENEW : 0
999 _c42887
_d42887