Table 2 Test treatment scheme.

From: An investigation into enhancing sand stability and minimizing dust emissions through bacterial treatment in arid regions

Test

plot

Experimental group description

Bacterial solution

Cementation solution

Spraying

time

Time of measurement (day)

D1

Untreated control (no solution)

no

no

0

1,4,7,14,28

D2

purified water

no

no

1

1,4,7,14,28

D3

mineral water

no

no

1

1,4,7,14,28

D4

tap water

no

no

1

1,4,7,14,28

D5

bacterial

1

no

1

1,4,7,14,28

D6

cementation

0

1

1

1,4,7,14,28

D7

1B + 1 C

1

1

1 + 1

1,4,7,14,28

D8

2B + 2 C

2

2

2 + 2

1,4,7,14,28

D9

4B + 4 C

4

4

4 + 4

1,4,7,14,28

D10

6B + 6 C

6

6

6 + 6

1,4,7,14,28

D11

8B + 8 C

8

8

8 + 8

1,4,7,14,28

T1

un treatment

no

no

0

1,4,7,14,28

T2

purified water

no

no

1

1,4,7,14,28

T3

mineral water

no

no

1

1,4,7,14,28

T4

tap water

no

no

1

1,4,7,14,28

T5

bacterial

1

0

1

1,4,7,14,28

T6

cementation

0

1

1

1,4,7,14,28

T7

1B + 1 C

1

1

1 + 1

1,4,7,14,28

T8

2B + 2 C

2

2

2 + 2

1,4,7,14,28

T9

4B + 4 C

4

4

4 + 4

1,4,7,14,28

T10

6B + 6 C

6

6

6 + 6

1,4,7,14,28

T11

8B + 8 C

8

8

8 + 8

1,4,7,14,28

  1. *1B + 1 C refers to the application of cementation solution 24 h after the bacterial solution has been sprayed.
  2. *2B + 2 C means that the bacterial solution is applied again 24 h after the initial application, followed by the cementation solution being sprayed 24 h after the second bacterial solution, with subsequent applications occurring at 24 h intervals. *4B + 4 C and *6B + 6 C and *8B + 8 C indicate that a corresponding number of bacterial solution is first applied, followed by an equal number of cementation solution applications, each occurring at 24 h intervals.
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