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INTENSIFICATION OF UNDERGROUND WATER TREATMENT PROCESSES FOR OIL REFINERIES IN HIGH-LATER AREAS

Table 1 - The STK-A sorbent characteristics

Bulk density, kg/m3

18…25

Flakes (granulated material), mm

1.4…5

Oil sorption capacity, kg of oil / specimen, kg

30…60

Flotation capacity for a month, %

90…100

Reduction of interfacial tension (water – oil), erg/cm2

2.5…3.5

The share of processed oil by microorganisms after 7-14 days

а) biodestructable activity under aerobic conditions, %

More than 10 ºС

50…70

At 0 ... +10 ºС

25…40

b) biodestructive activity under anaerobic conditions, %

More than 10 ºС

20…35

at 0 ... +10 ºС

10…15

Decrease in the activity after three years of storage, %

30…40