Research Article
Properties of Calcium Acetate Manufactured with Etching Waste Solution and Limestone Sludge as a Cementitious High-Early-Strength Admixture
Table 8
ICP Analysis of heavy metals (mg/
).
| | Recycled acetic acid | Limestone sludge : recycled acetic acid | Standard | 2 : 1 | 2 : 1.5 | 2 : 2 |
| Cd | Not detected | Not detected | Not detected | Not detected | <0.1 | Cr | Not detected | Not detected | Not detected | Not detected | <2 | Cu | 3 | 1.5 | 1.62 | 1.61 | <3 | Hg | Not detected | Not detected | Not detected | Not detected | <0.005 | Pb | Not detected | Not detected | Not detected | Not detected | <1 | Mn | Not detected | Not detected | Not detected | Not detected | — | Zn | 3 | 1.5 | 1.7 | 1.9 | <5 | As | Not detected | Not detected | Not detected | Not detected | <0.5 | Solid contents | 62% | 22% | 27% | 29% | |
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Water quality standards of Japan.
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