Filtrates and Sludge Generated in the Physicochemical Treatment of Wastewater from the Lead-Acid Batteries Production-Reference-Cited by-同舟云学术

Filtrates and Sludge Generated in the Physicochemical Treatment of Wastewater from the Lead-Acid Batteries Production

Published:2020-07-22 Issue: Volume: Page:
ISSN:2029-7092
Container-title:The 11th International Conference ENVIRONMENTAL ENGINEERING 11th ICEE SELECTED PAPERS
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Author:

Rauckyte-Żak Terese¹,Gorczyca Beata²,Żak Sławomir¹

Affiliation:

1. Department of Chemical Technology and Engineering, University of Science and Technology, 3 Seminaryjna Street, 85-326 Bydgoszcz, Poland

2. Faculty of Civil Engineering, University of Manitoba, MB R3T 5V6, Winnipeg, Canada

Abstract

Total lead (TPb) exists in Crude Wastewater (CW) from production of Lead-Acid Batteries (LABs) in water (WPb) and solid phase (SPb) as colloids and suspended solids. Sludges produced in chemical treatment of these wastewater were dewatered in Chamber Pressure Press (CPP). Samples of dewatered sludges (Ss) were analyzed with Toxicological Characteristic Leaching Procedure (TCLP) to determine concentration of Pb in the extract (Ex(TCLP)). Selected sludges were also analyzed using Tessier’s procedure for fractions. Concentration of lead in filtrates (Fs) as well as in the sludges were different, depending on the mechanisms involved in converting soluble lead to its less soluble forms. Sludges produced in chemical treatment with 10% NaOH and Lime Milk (LM), CaO or Ca(OH)2, followed by coagulation with (Ixonos Na3T ®) contained lowest concentration of lead. The TPb in filtrates below 0.4 mg/L at pH > 8.90±0.3, and Ex(TCLP) of less than 5.0 mg/L were obtained in this treatment. Potential recovery of lead from sludges have been investigated.

Publisher

VGTU Technika

Reference30 articles.

1. Byrne, R. H., & Miller, W. L. (1984). Medium composition dependence of lead(II) complexation by chloride ion. American Journal of Science, 284, 79-94. https://doi.org/10.2475/ajs.284.1.79

2. Byrne, R. H., Yao, W., Luo, Y., & Millero, F. J. (2010). Complexation of Pb(II) by chloride ions in aqueous solutions. Aquatic Geochemistry, 16(3), 325-335. https://doi.org/10.1007/s10498-010-9101-4

3. Davidson, A. J., Binks, S. P., & Gediga, J. (2016). Lead industry life cycle studies: Environmental impact and life cycle assessment of lead battery and architectural sheet production. The International Journal of Life Cycle Assessment, 21(11), 1624-1636. https://doi.org/10.1007/s11367-015-1021-5

4. Decostere, B., Hogie, J., Dejans, P., & Van Hulle, S. W. H. (2009). Removal of heavy metals occurring in the washing water of flue gas purification. Chemical Engineering Journal, 150, 196-203. https://doi.org/10.1016/j.cej.2008.12.025

5. International Organization for Standardization. (2007). Water quality - Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES) (ISO 11885:2007). https://www.iso.org/standard/36250.html