Using Alkali-Activated Cementitious Materials to Solidify High Organic Matter Content Dredged Sludge as Roadbed Material

Table 7

Leaching tests results of solidified dredged sludge samples.

Sample	Cr (mg/L)	Cu (mg/L)	Pb (mg/L)	Zn (mg/L)	Ni (mg/L)	Ba (mg/L)
0% strong oxidant	nd	0.135	nd	0.020	nd	2.72
2% GH	nd	0.130	nd	0.017	nd	2.60
2% KMnO4	nd	0.131	nd	0.015	nd	2.60
Limits	5	100	5	100	5	100

Note: nd: not detected.