Zhang, Zhuo Guo, Guanlin Teng, Yanguo Wang, Jinsheng Rhee, Jae Seong Wang, Sen Li, Fasheng 2024-01-20T07:03:18Z 2024-01-20T07:03:18Z 2022-01-25 2015-05 0304-3894 https://pubs.kist.re.kr/handle/201004/125468 Lead exposure via ingestion of soil and dust generally occurs at lead-acid battery manufacturing and recycling sites. Screening solidification/stabilization (S/S) amendments suitable for lead contaminated soil in an abandoned lead-acid battery factory site was conducted based on its chemical forms and environmental risks. Twelve amendments were used to immobilize the Pb in soil and assess the solidification/stabilization efficiency by toxicity leaching tests. The results indicated that three amendments, KH2PO4 (KP), KH2PO4:oyster shell power = 1:1 (by mass ratio; SPP), and KH2PO4:sintered magnesia = 1:1 (by mass ratio; KPM) had higher remediation efficiencies that led to a 92% reduction in leachable Pb with the addition of 5% amendments, while the acid soluble fraction of Pb (AS-Pb) decreased by 41-46% and the residual fraction (RS-Pb) increased by 16-25%. The S/S costs of the three selected amendments KP, SPP, and KPM could be controlled to $22.3 per ton of soil when the Pb concentration in soil ranged from 2000 to 3000 mg/kg. The results of this study demonstrated that KP, SPP, and KPM can effectively decrease bioavailability of Pb. These findings could provide basis for decision-making of S/S remediation of lead-acid battery contaminated sites. (C) 2015 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV Screening and assessment of solidification/stabilization amendments suitable for soils of lead-acid battery contaminated site Article 10.1016/j.jhazmat.2015.02.015 1 JOURNAL OF HAZARDOUS MATERIALS, v.288, pp.140 - 146 JOURNAL OF HAZARDOUS MATERIALS 288 140 146 N scie scopus 000353097900016 2-s2.0-84923010228 Engineering, Environmental Environmental Sciences Engineering Environmental Sciences & Ecology Article SHOOTING RANGE SOIL SEQUENTIAL EXTRACTION HEAVY-METALS CHEMICAL IMMOBILIZATION CEMENTITIOUS MATERIALS AGRICULTURAL SOILS RECYCLING SITES PHOSPHORIC-ACID POLLUTED SOILS PHOSPHATE Lead-acid battery contaminated site Solidification/stabilization Screening and assessment of amendments