Solumstrand Wastewater Treatment Plant - AnoxKaldnes

CASE STUDY
SOLUMSTRAND WWTP | DRAMMEN Council
” Norway’s most beautiful wastewater treatment
plant in Norway’s coolest city”

The whole chemical handling system was
housed in the existing basin hall.
Actiflo® - from 0-100
in 10 minutes!
Greater capacity -
same floor footprint!
Solumstrand Wastewater Treatment Plant was built
in 1991 with a capacity of 3.000 m 3 /h using primary
calcium precipitation and seawater. A subsequent
requirement for secondary treatment plus the need to
increase the capacity to compensate for the closing of
the Muusøya Treatment Plant, led to a major renewal
and expansion of the plant in 2011. The new design
capacity is 4.000 m 3 /h which includes both chemical
precipitation and biological treatment.
DESIGN
Kaldnes MBBR Actiflo®
Four parallel lines with
2 Kaldnes MBBR in series followed by
two Actiflo® units built on site
Reactor volume/line 2 x 390 m 3 -
Reactor Lamella surface/line - 2 x 26 m 2
Fill-level biomedia 59 % -
SALR (10°C) 11,5 g BOF 5
/m 2 *d -
Kaldnes biomedia Kaldnes K3 -
Air capacity 18.400 Nm 3 /t -
Solution
Four of the existing 6 sedimentation basins were
converted to Kaldnes MBBR reactors while the
remaining two were rebuilt as dual-flow Actiflo®’s,
each with a capacity of 2.750 m 3 /h. This released more
space in the basins that could be used for storing
chemicals and dosage equipment. This combination of
processes increased the capacity and transformed the
treatment process without having to extend the plant
area.
Creating water solutions in practice!
CASE STUDY
SOLUMSTRAND WWTP | DRAMMEN Council
Existing sludge storage
retained
Previously:
Lines 5-6 Chemical treatment stage
Now:
- Chemical treatment stage 1-2
-Storage of precipitation chemicals
- Polymer storage and pretreatment for
water treatment and densifying.
Existing gravity
densifiers retained
Previously:
Lines 1-4 chemical
treatment stage
Now:
Biological treatment
stage 1-4

FACTS
Solumstrand WWTP
Kaldnes TM MBBR - completely
sealed biological process
Start-up 2011
Client:
Consultant:
Drammen Council
Norconsult, Sandvika
Task:
To design a treatment plant with expansion possibilities that
can cater for large, seasonal variations in waste-water and
organic loads.
Solution:
Combine two well-proven technologies - the compact
Kaldnes MBBR process for removing organic waste and
Actiflo® for chemical precipitation and solids separation.
Design capacity:
Qdim: 2000 m 3 /t
Qmaksdim: 4000 m 3 /t
Alfa Laval sludge
densifiers.
Organic loading:
7755 kg BOF 5
/d
20350 kg KOF/d
Discharge requirements
BOF 5
: < 25 mg/l or > 70 % of purification effect
KOFCr: < 125 mg/l or >75 % of purification effect
Tot-P: > 90% purification
Plexiglas inspection hatches
Polymer preparation

www.krugerkaldnes.no
post@krugerkaldnes.no
phone: +47 91 60 80 00
Solumstrand
renseanlegg
Oppstart
2011
Kunde
Drammen kommune
Konsulent: Norconsult
Utfordring
Å designe et renseanlegg med planlagt fremtidig utvidelse og store sesongvariasjoner i vannmengde og organisk
belastning.
Løsning
Kombinere to vel prøvede teknologier. Den kompakte Kaldnes MBBR prosessen for fjerning av organisk stoff
og Actiflo ® for kjemisk felling og partikkel separasjon.
Design kapasitet
Q dim : 2000 m 3 /t
Q dim maks: 4000 m 3 /t
Organisk belastning:
7755 kg BOF 5 /d
20350 kg KOF/d
mg/l
1000
KOF inn
KOF ut
Utslippskrav
BOF 5 :
KOF Cr :
Tot-P:
< 25 mg/l eller > 70 % renseeffekt
< 125 mg/l eller >75 % renseeffekt
> 90% renseeffekt
800
600
400
Results from February - April, 2011
Renseresultater
200
0
17.01.2011 06.02.2011 26.02.2011 18.03.2011 07.04.2011 27.04.2011 17.05.2011
mg
BOF in BOF ut
375
350
325
300
275
250
225
200
175
150
125
100
75
50
25
0
17.01.2011 06.02.2011 26.02.2011 18.03.2011 07.04.2011 27.04.2011 17.05.2011
mg/l
Tot-P inn Tot-P ut
10
9
8
7
6
5
4
3
2
1
0
17.01.2011 06.02.2011 26.02.2011 18.03.2011 07.04.2011 27.04.2011 17.05.2011
mg/l
KOF inn KOF ut
1000
800
600
400
200
0
17.01.2011 06.02.2011 26.02.2011 18.03.2011 07.04.2011 27.04.2011 17.05.2011
Parameter Mean purification result Mean discharge
BOF 5
82 % 23 mg/L
KOF 82 % 80 mg/L
Resultater fra feb - apr 2011
Parameter Tot-P Gjenomsnittlig Gjenomsnittlig
93 % 0,25 mg/L
renseresultat utløpsverdi
Values based on daily mixed samples from the start-up period which
BOF 5 82 % 23 mg/L
included considerable adjustment and optimization..
KOF 82 % 80 mg/L
Tot-P 93 % 0,25 mg/L
Verdier basert på døgnblandprøver fra den inledande
periode som till stor del varit en periode med intrimning
og optimalisering.
JHR Produksjon - june, 2011
mg/l
10
9
8
Tot-P inn
Tot-P ut
7
6
CASE STUDY
5
SOLUMSTRAND 4 WWTP | DRAMMEN Council
3
®
2
1
0
17.01.2011 06.02.2011 26.02.2011 18.03.2011 07.04.2011 27.04.2011 17.05.2011