BVT-Merkblatt zu Abwasser- und Abgasbehandlung

Annexes
7.6.2 Information on Waste Water Discharges (Examples)
[cww/tm/160]
Example X Example XI
Production active pharmaceutical ingredients and intermediates
inorganic fine chemicals, pharmaceuticals
Process steps
rake screen
waste water with mainly inorganic load:
neutralisation
- neutralisation
buffering, equalisation
- precipitation, flocculation, sedimentation
denitrification
waste water with relevant organic load
biological treatment, 2 stages
microscreening
treated off-site
Pretreatment facilities
wet oxidation (H2O2/Fe salt) for tributary
stream (COD reduction)
Facilities for emergency
situations
additional biological treatment facility
V = 13500 m 3 (covering 3 days)
additional retention and treatment facilities
V = 3800 m 3 and V = 1800 m 3
Exhaust air treatment closed facilities, except biological stages
Waste water amount
[m 3 /d]
3800 3500
Performance data a
input output performance input output performance
[mg/l] [mg/l] [%] [mg/l] [mg/l] [%]
COD 1600 100 94 150 40
BOD5 1100 7 >99 49 20
NH4-N 30 2 93
total inorganic N 20
total N 40 25 37.5 15 15
total P 4.2 0.5 88 3,8 0.3
TF
2
TD
1
TA
1-8
TL
1-8
TM
a
daily mean average
1.5
Production
large volume organic and inorganic chemicals,
polymers, dyes, pharmaceutical ingredients
and intermediates, municipal
Process steps
waste water (13 %)
neutralisation
sedimentation
biological treatment
final clarification (sedimentation)
Pretreatment facilities stripping (ammonia from tributary streams)
extraction (tributary streams for pesticide
production
precipitation of heavy metals
Facilities for emergency possibility to isolate 2 aeration tanks
situations
retention volume 60000 m 3
Example XI I Example XIII
pharmaceutical ingredients, pesticides,
dyes
neutralisation
sedimentation
tower biology with final clarification
central GAC adsorption (tributary streams
from production of chlorinated nitroaromatics
with high AOX load), on-site regenration
retention facility V = 12000 m 3
Exhaust air treatment closed biological stages closed biological facilities
waste gas combustion
Waste water amount
[m 3 /d]
430000 11000
Performance data a
input output performance input output performance
[mg/l] [mg/l] [%] [mg/l] [mg/l] [%]
COD 1050 112 91 160 18 89 b
BOD5 500 7 98.6 1
NH4-N 27 22 19.5 4.2 0.9 78
total inorganic N 22 50 28 44
total N
total P 9 0.5 94 0.13
AOX 1.1 0.16 85 c
TF 2 2
TD 2 1
TA 2 3
TL
8
TM
a
daily mean average
b
96 % when considering pretreatment
c 99 % when considering pretreatment
1.5
Example XIV Example XV
338 Waste Water and Waste Gas Treatment