BVT-Merkblatt zu Abwasser- und Abgasbehandlung

Example XX
Exhaust air treatment off-gas treatment with GAC adsorption
closed facilities
Waste water amount
[m 3 /d]
8000
Performance data a
input output performance
[mg/l] [mg/l] [%]
COD 3300 167 95
BOD5 1400 7 99.5
NH4-N 100 5 95
total inorganic N 100 7 93
total N 155 b
23 b
85
total P 5 0.9 82
AOX 1.1 0.13 88
TF
2
TD
1-2
TA
1
TL
1
TM
a
daily mean average
1.5
b Kjeldahl-N
Annexes
7.6.3 Information on Complete-Site Waste Water Treatment Systems (Examples)
Example XXI
Example XXI describes a chemical industry site in Finland which is shared by five chemical
companies (A – E), their production characteristics being:
Company Main production Capacity
[tonnes/yr]
A oil products and lubricants
B plastics and petrochemicals
C polyesters max. 20000
plasticizing agents max. 30000
PVC 70000-90000
D EPS (encapsulated polystyrene 40000
E SB-latex 17000
All companies have established or are establishing ISO 14001 standardised environmental management
systems.
The situation is illustrated in Abbildung 7.5.
Information on waste water flows and treatment techniques and efficiency is detailed in Tabelle
7.2.
Waste water
stream
Treatment techniques
WW-1 + WW-4 GAC treatment,
regeneration;
pretreatment by
API, sandfilter
WW-2 + WW-3 biochemical
treatment, subsequent
sludge
treatment, incineration;
pretreatment by
stripping, several
APIs, flocculation,
flotation
Waste water
amount
[m 3 /h]
Input concentration
[mg/l]
10000 COD: 300-400
phenols: 5
2000 COD: 500-900
phenols: 30
Output concentration
[mg/l]
COD: