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Table 4

Grey relational coefficient (GRC) with their grade (GRG) and rank for removal percentage (R%) and adsorption capacity (q)

Trial no.RB5
RR136
RY145
RB222
GRC
GRGRankGRC
GRGRankGRC
GRGRankGRC
GRGRank
R%qR%qR%qR%q
0.354 0.358 0.420 14 0.656 0.499 0.577 10 0.488 0.383 0.436 15 0.737 0.419 0.578 11 
0.604 0.505 0.569 0.871 0.670 0.771 0.737 0.527 0.632 0.826 0.601 0.714 
0.753 0.702 0.691 1.000 0.790 0.895 0.848 0.762 0.805 0.602 0.772 0.687 
1.000 0.915 0.940 0.508 0.702 0.605 0.986 1.000 0.993 0.583 1.000 0.791 
0.635 0.370 0.699 0.741 0.404 0.572 11 1.000 0.374 0.687 1.000 0.373 0.687 
0.569 0.434 0.532 0.867 0.525 0.696 0.647 0.434 0.540 0.768 0.460 0.614 
0.572 0.815 0.693 0.456 0.933 0.695 0.548 0.898 0.723 0.478 0.949 0.714 
0.466 0.826 0.673 0.429 0.901 0.665 0.463 0.963 0.713 0.387 0.868 0.628 
0.490 0.333 0.457 12 0.386 0.333 0.360 16 0.667 0.333 0.500 11 0.857 0.333 0.595 10 
10 0.412 0.415 0.459 11 0.478 0.506 0.492 13 0.498 0.435 0.466 13 0.656 0.471 0.564 12 
11 0.552 0.694 0.603 0.761 0.889 0.825 0.440 0.670 0.555 0.437 0.672 0.554 14 
12 0.478 1.000 0.708 0.333 1.000 0.667 0.346 0.949 0.648 0.333 0.873 0.603 
13 0.374 0.341 0.405 15 0.358 0.378 0.368 15 0.693 0.379 0.536 10 0.743 0.374 0.558 13 
14 0.412 0.485 0.484 10 0.385 0.627 0.506 12 0.380 0.477 0.429 16 0.662 0.636 0.649 
15 0.333 0.465 0.397 16 0.375 0.525 0.450 14 0.370 0.505 0.438 14 0.436 0.516 0.476 16 
16 0.355 0.623 0.456 13 0.491 0.796 0.644 0.333 0.664 0.498 12 0.342 0.613 0.478 15 
Trial no.RB5
RR136
RY145
RB222
GRC
GRGRankGRC
GRGRankGRC
GRGRankGRC
GRGRank
R%qR%qR%qR%q
0.354 0.358 0.420 14 0.656 0.499 0.577 10 0.488 0.383 0.436 15 0.737 0.419 0.578 11 
0.604 0.505 0.569 0.871 0.670 0.771 0.737 0.527 0.632 0.826 0.601 0.714 
0.753 0.702 0.691 1.000 0.790 0.895 0.848 0.762 0.805 0.602 0.772 0.687 
1.000 0.915 0.940 0.508 0.702 0.605 0.986 1.000 0.993 0.583 1.000 0.791 
0.635 0.370 0.699 0.741 0.404 0.572 11 1.000 0.374 0.687 1.000 0.373 0.687 
0.569 0.434 0.532 0.867 0.525 0.696 0.647 0.434 0.540 0.768 0.460 0.614 
0.572 0.815 0.693 0.456 0.933 0.695 0.548 0.898 0.723 0.478 0.949 0.714 
0.466 0.826 0.673 0.429 0.901 0.665 0.463 0.963 0.713 0.387 0.868 0.628 
0.490 0.333 0.457 12 0.386 0.333 0.360 16 0.667 0.333 0.500 11 0.857 0.333 0.595 10 
10 0.412 0.415 0.459 11 0.478 0.506 0.492 13 0.498 0.435 0.466 13 0.656 0.471 0.564 12 
11 0.552 0.694 0.603 0.761 0.889 0.825 0.440 0.670 0.555 0.437 0.672 0.554 14 
12 0.478 1.000 0.708 0.333 1.000 0.667 0.346 0.949 0.648 0.333 0.873 0.603 
13 0.374 0.341 0.405 15 0.358 0.378 0.368 15 0.693 0.379 0.536 10 0.743 0.374 0.558 13 
14 0.412 0.485 0.484 10 0.385 0.627 0.506 12 0.380 0.477 0.429 16 0.662 0.636 0.649 
15 0.333 0.465 0.397 16 0.375 0.525 0.450 14 0.370 0.505 0.438 14 0.436 0.516 0.476 16 
16 0.355 0.623 0.456 13 0.491 0.796 0.644 0.333 0.664 0.498 12 0.342 0.613 0.478 15 
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