PERFORMANCE REPORT B LEACHABILITY - U.S. EPA TCLP EXTRACTION AND ANALYSIS (CAKES/SLUDGES)
Electroplating wastes (F006), usually presented as a wet filter cake or a stiff sludge, are easily treated by Petroset-H or Aquaset II-H to levels of leachability far below those required by the U.S. EPA for land disposal. Eleven examples, showing the results of the treatment of plating wastes from widely differing operations, illustrate the ability of these stabilizers to tie-up heavy metals. The results achieved, and the regulatory requirements (maxima) are expressed in mg/l:
|
Waste No. |
Cd |
Cr |
Pb |
Ni |
Ag |
|
1 |
0.005 |
0.054 |
<0.05 |
0.04 |
<0.01 |
|
2 |
0.008 |
0.320 |
0.003 |
0.018 |
0.002 |
|
3 |
<0.005 |
0.533 |
<0.05 |
0.15 |
<0.01 |
|
4 |
<0.005 |
1.90 |
<0.05 |
<0.04 |
<0.01 |
|
5 |
<0.005 |
0.601 |
<0.05 |
<0.04 |
<0.01 |
|
6 |
<0.027 |
1.54 |
<0.05 |
<0.04 |
<0.01 |
|
7 |
<0.014 |
0.395 |
0.002 |
0.030 |
<0.01 |
|
8 |
0.024 |
0.037 |
0.058 |
0.098 |
0.001 |
|
9 |
0.013 |
0.044 |
0.025 |
0.111 |
0.001 |
|
10 |
0.029 |
1.641 |
0.049 |
0.110 |
0.002 |
|
11 |
0.023 |
1.562 |
0.043 |
0.112 |
0.001 |
|
EPA Limit |
0.066 |
5.200 |
0.510 |
0.320 |
0.072 |
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