สืบค้นงานวิจัย
Solidification/stabilization of nonvaluable residue from waste printed circuit board assembly
Tesanan S. - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Solidification/stabilization of nonvaluable residue from waste printed circuit board assembly
ผู้แต่ง / หัวหน้าโครงการ (EN): Tesanan S.
บทคัดย่อ (EN): The process of copper recovery from waste printed circuit board assembly (PCBA) has remained a large fraction of solid waste called "Nonvaluable Residue (NVR)". This residue is considered to be a hazardous waste because Pb, Cu, and Sb exceed the regulatory levels. Solidification/Stabilization (S/S) treatment technique is selected to improve waste characteristics before disposal of in hazardous waste landfills. In this study, a cement-based solidification/stabilization was used to treat NVR. Unconfined compression strength test (UCS) and toxicity characteristic leaching procedure (TCLP) were mainly used for physical and chemical characterization of the solidified/stabilized products. After curing for 28 days, the compressive strength and heavy metal leachability (Pb, Cu, Sb) were tested. The results showed that the compressive strength of blank sample was 20.75 MPa while compressive strengths of the solidified/stabilized NVR products were 7.36, 4.17 and 1.35 MPa for 20%, 30% and 40 wt% of NVR, respectively. All experimental mixture ratios satisfied the UCS requirements (0.35 MPa). In addition, the concentrations of Pb, Cu, and Sb in the TCLP leachate of all solidified/stabilized NVR products were lower than the limit value and the original waste. This study indicated that cement-based S/S treatment process was able to improve heavy metal immobilization and subsequently minimize potential environmental impacts in landfill disposal. © 2016, Int. J. of GEOMATE. All rights reserved.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://www.scopus.com/inward/record.uri?eid=2-s2.0-84956655093&partnerID=40&md5=5e1d0f533e922afc2dd3b03b7bf0cb4e
เผยแพร่โดย (EN): มหาวิทยาลัยมหิดล
คำสำคัญ (EN): Waste printed circuit board assembly (PCBA)
เจ้าของลิขสิทธิ์ (EN): มหาวิทยาลัยมหิดล
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Tesanan S.. "Solidification/stabilization of nonvaluable residue from waste printed circuit board assembly". ไม่ระบุหน่วยงาน. ม.ป.ป.

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Solidification/stabilization of nonvaluable residue from waste printed circuit board assembly
Tesanan S.
มหาวิทยาลัยมหิดล
ไม่ระบุวันที่เผยแพร่
Environmental impacts of recycled nonmetallic fraction from waste printed circuit board A new composite made from non-metallic waste printed circuit boards: Table-top product as a practical prototype Co-digestion of napier grass with food waste and napier silage with food waste for methane production Overview of Waste Management in the Malaysian Rubber Industry Anaerobic Digestion of Rubber Waste for Production of Renewable Energy Characteristics and potential utilizations of starch from pineapple stem waste Optimal conditions for biological hydrogen production from food waste Emissions of volatile organic compounds from maize residue open burning in the northern region of Thailand Possibility of using household waste as Nutrient carrier in Rubber plantations Waste utilization of palm oil decanter cake on biogas fermentation
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