03293cas|a2200433 a 4500 20260818133432.0 020201s2001 th uu|m rtt 0| a1eng d .b11843639 AIT Thesis no.EV-01-22 Tran Hong Giang Heavy metal leaching from contaminated soil by acetic acid Bangkok : Asian Institute of Technology, 2001 51 leaves Thesis ; no. EV-01-22 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development Thesis (M. Sc.) - Asian Institute of Technology, 2001 This study was carried out to evaluate and determine the applicability of using acetic acid in removal of heavy metals from contaminated soils. With acetic acid at pH 2.8, produced easily from organic wastes, soil was treated with the highest efficiency. The acid solution was applied in column experiment by surface flooding to increase to the solubility and mobility of metals in the soil, that is Cd and Ni were removed from soil after estimated about 120 clays of treatment. When acetic acid solution at pH 2.8 was applied to treat the soil, soil pH was reduced from initial value of 5.2 to 3.9. However, acetic acid can be a food source for microorganism in soil, when organic acid reduced, soil pH was increased to initial values after 80 day, that may not cause negative effect to plant growth. Because the treatment of the soil removes the large part of available metals, so after a certain time, the population of microorganisms significantly increased. Bacteria were limited in acid habitats; the fungi dominated the microbial community in areas of low pH, the number of fungi could increased 4 times with control when com . Some bacteria were persisting for long periods in such unfavorable circumstance. Once the organic acids in soil reduce fungi activities reduce, the bacteria will return rapidly to a position of importance. Soil remediation Soils Heavy metal content Acetic acid Nguyen, Cong Thanh, Chairperson Fukushi, Kensuke, Examination Committee Preeda Pakpian, Examination Committee CEC-DAAD, Scholarship donor Asian Institute of Technology. Thesis; no. EV-01-22 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B08378 .b11843639 mnait u 240329 0 020201 m a u 0 mnait mnait mnarc 20 40 Barcode : 30050120711188 CREATED : 2000-04-09 RECORD # : i12268501 LPATRON : 1019935 LCHKIN : 2007-05-02 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 5 TOT RENEW : 2 Barcode : 30050120711170 CREATED : 2000-04-09 RECORD # : i12268513 LPATRON : 1019082 LCHKIN : 2006-01-17 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 12 TOT RENEW : 3 Barcode : 30050160076955 CREATED : 2016-05-24 RECORD # : i1298968x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 54745 54745 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.EV-01-22 30050120711188 2026-08-18 13:34:32 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.EV-01-22 30050120711170 2026-08-18 13:34:32 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.EV-01-22 30050160076955 2026-08-18 13:34:32 2026-08-18 40