Table 5.88 Test results of landfill gas composition and content
No.
Exploration hole number
Landfill gas composition and content (%)
CH 4
CO 2
O 2
BAL
1
2
#
0.1
1.4
10.9
87.6
2
3
#
0.9
11.6
1.2
86.3
3
5
#
0.9
0.7
13.5
84.9
4
6
#
3.4
1.2
13.6
81.8
5
8
#
2.2
0.2
14.1
83.5
6
9
#
14.4
6.1
11.3
68.2
7
1 1
#
0.1
0.1
14.4
85.4
8
1 3
#
4.8
0.2
12.8
82.2
9
1 4
#
0.2
0.1
14.2
85.5
10
16
#
1.1
0.0
14.2
84.7
11
17
#
0.0
0.0
14.0
86.0
Table 5.89 Statistical table of the results of water quality testing and evaluation of landfill
leachate
Inspection item
Test
result
Discharge
concentration
limit
Exceeding
the
standard by
multiple
Evaluation criterion
Chromaticity (dilution
factor)
100
30
2.33
Special emission limits for
pollutant in existing and
new landfill as provided in
“Standard for pollution
control on the landfill site of
municipal solid waste”
(GB16889-2008)
Suspended solids (mg/L)
21
30
–
COD (mg/L)
161
60
1.68
5-day BOD (mg/L)
61
20
2.05
Ammonia-nitrogen (mg/L) 12.4
8
0.55
Total nitrogen (mg/L)
15.1
20
–
Total phosphorus (mg/L)
0.55
1.5
–
Total mercury (mg/L)
<0.0001 0.001
–
Total cadmium (mg/L)
0.00001 0.01
–
Total chromium (mg/L)
0.005
0.1
–
Hexavalent chromium
(mg/L)
<0.004
0.05
–
Total arsenic (mg/L)
0.036
0.1
–
Total lead (mg/L)
0.002
0.1
–
pH
7.7
–
–
–
Note The results that have not met the requirements in the standard are indicated by bold font in the table
5.5 North China
273