Chemical fractionation of heavy metals and nutrients in sludge and waste water generated by Coca-Cola soft drink industry
| Autor: | Hargopal Singh, Pritpal Singh, Dhanwinder Singh |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Archives of Agronomy and Soil Science. 61:119-138 |
| ISSN: | 1476-3567 0365-0340 |
| DOI: | 10.1080/03650340.2014.924106 |
| Popis: | Coca-Cola soft drinks industry generates three sludge types, viz., water treatment sludge (WTS), effluent treatment plant sludge (ETPS) and filter cake sludge (FCS), and two waste waters, viz., effluent and influent. Total nitrogen (TN), phosphorus (TP), potassium (TK) and sulfur (TS) concentrations were significantly higher in ETPS than in WTS and FCS, indicating that Coca-Cola sludge is a good source of macronutrients. Among micronutrients, total iron (T-Fe) and copper (T-Cu) concentrations were significantly higher in ETPS, and total zinc (T-Zn) and manganese (T-Mn) concentrations were significantly higher in WTS compared with other sludge types. Among heavy metals, total cadmium (T-Cd) and arsenic (T-As) concentrations were significantly higher in ETPS, and total mercury (Hg) and nickel (T-Ni) concentrations were significantly higher in WTS than other sludge types. Speciation of micronutrients/heavy metals in sludge performed by using sequential extraction showed their predominance as crystalline and ... |
| Databáze: | OpenAIRE |
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