Electroplating sludge handling by solidification/stabilization process: a comprehensive assessment using kaolinite clay, waste latex paint and calcium chloride cement additives

doi:10.1007/s10163-019-00903-8

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標題:	Electroplating sludge handling by solidification/stabilization process: a comprehensive assessment using kaolinite clay, waste latex paint and calcium chloride cement additives
作者:	Ballesteros, Florencio Manila, Arceo Antonio Choi, Angelo Earvin Sy Ming-Chun Lu(盧明俊)
貢獻者:	Univ Philippines Diliman, Environm Engn Grad Program Natl Res Ctr Disaster Free & Safe Ocean City Chia Nan Univ Pharm & Sci, Dept Environm Resources Management, Tainan 71710, Taiwan
關鍵字:	Calcium chloride Electroplating sludge Kaolinite clay Solidification/stabilization Waste latex paint
日期:	2019-11
上傳時間:	2020-07-29 13:48:41 (UTC+8)
出版者:	SPRINGER
摘要:	This research examined the solidification/stabilization process of using a cement binder with actual electroplating sludge. An extensive comparative analysis was done with the cement-sludge mixture before and after the application of cement additives (kaolinite clay, waste latex paint and calcium chloride). The characterization analysis using the Fourier transform infrared spectrophotometer and X-ray diffraction analysis indicated the development of hydration at different cement mixtures. Through a comprehensive assessment of various cement additives, this study showed that the utilization of the admixtures in the cement binder could surpass the required standard unconfined compressive strength (350 kPa). Moreover, calcium chloride as its chemical additive (1704.5 kPa) was able to further aid the strength development against the control concrete (1151.5 kPa) at 28 days. In terms of the leaching tests, the use of cement additives has proved to successfully immobilize the heavy metals (Ag, Cu and Ni) in the cement-sludge matrix based on the toxicity characteristic leaching procedure. The results revealed an effective leaching resistance that leads to satisfying the stringent regulatory leaching requirements of the United States Environmental Protection Agency and the European Union Council (Ag <= 5.0 mg/L, Cu <= 0.6 mg/L and Ni <= 0.12 mg/L).
關聯:	Journal of Material Cycles and Waste Management, v.21, n.6, pp.1505-1517
显示于类别:	[環境資源管理系(所)] 期刊論文

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