United Nations Environment Programme - Stockholm Convention on ...
United Nations Environment Programme - Stockholm Convention on ...
United Nations Environment Programme - Stockholm Convention on ...
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Slide 7<br />
Slide 10<br />
Sewage sludge disposal routes<br />
BioMill - flowchart<br />
Pressure relieve<br />
Filter<br />
valve<br />
wet sludge 2% dry c<strong>on</strong>tent<br />
dewatered sludge 25 % dry c<strong>on</strong>tent<br />
supplier<br />
4 8<br />
Explosi<strong>on</strong> valve<br />
Chimney<br />
C<strong>on</strong>trol<br />
valve<br />
Pressure relieve<br />
valve<br />
dry sludge<br />
75-90 % dry<br />
Filter<br />
Drive<br />
Fan<br />
4<br />
agriculture<br />
incinerati<strong>on</strong><br />
m<strong>on</strong>o power cement<br />
plant kiln<br />
landfill<br />
(no<br />
l<strong>on</strong>ger)<br />
user<br />
Vertical roller<br />
mill<br />
Transport pump<br />
Dosing<br />
Equipment<br />
Coriolis<br />
ash disposal<br />
B urner<br />
Kiln<br />
PG 1.4 – 2003-09-30 - 7<br />
PG 1.4 – 2003-09-30 - 10<br />
Slide 8<br />
Slide 11<br />
Sewage sludge, emissi<strong>on</strong> standards<br />
parameters<br />
Waste<br />
inciner . plant<br />
17.BImSchV<br />
limits typical results 2<br />
EU - Waste incinerati<strong>on</strong> directive<br />
Cement plants Coal -<br />
power plants<br />
> 300 MW th<br />
O2 = 11% O2 = 10% O2 = 6%<br />
Power<br />
plants;<br />
different types<br />
min - max<br />
Cement<br />
plants<br />
min - max<br />
BioMill in Maastricht<br />
Dust, suspended<br />
dust mg/Nm 3 10 30 30 1 - 15 4 - 34<br />
HCl mg/Nm 3 10 10 10 2 - 130 0.3 - 5.7<br />
HF mg/Nm 3 1 1 1 0.2 – 3.9 0.05 - 1.1<br />
Heavy metals<br />
Hg mg/Nm 3 0.03 0.05 0 .05 < 0.002 – 0.01 < 0.002 - 0.05<br />
Cd + TI mg/Nm 3 0.05 0.05 0 .05 < 0,002– 0.01 < 0.002 - 0.028<br />
Sum<br />
Sb , Pb, Cr, Co, mg/Nm 3 0.50 0.50 0 .50 0,002 – 0.18 0.001 - 0.03<br />
Cu, Mn , Ni, V<br />
Organic<br />
C total mg/Nm 3 10 10 1 150 ? ?<br />
PCDD/PCDF n g/Nm 3 0.1 0.1 0.1 < 0.002 - 0,0 93 < 0.002 - 0.042<br />
Parameters with process-related excepti<strong>on</strong>s<br />
mg/Nm 3 50 SO 2 50 1 200 0.1 - 390 10 - 370<br />
1<br />
1<br />
1<br />
200<br />
NOx mg/Nm 3 200 500 160 - 830 230 - 750<br />
1 excepti<strong>on</strong>s are possible, if TOC and SO2 is not produced by burning waste.<br />
2 Data- sources: EU - Directive and Report for usageof wastein industry of Nordrhein- Westfalen.<br />
PG 1.4 – 2003-09-30 - 8<br />
PG 1.4 – 2003-09-30 - 11<br />
Slide 9<br />
Slide 12<br />
Utilisati<strong>on</strong> in Maastricht<br />
Supply and transport<br />
1997 - 1998 <str<strong>on</strong>g>Envir<strong>on</strong>ment</str<strong>on</strong>g>al Impact Study (MER)<br />
1997 Starting experiments<br />
grinding in ball mill with inertising with N 2<br />
1998 – 2000 Extended trials with ball mill<br />
1998 Permit for100.000 tpy sludges<br />
1999 C<strong>on</strong>structi<strong>on</strong> BioMill 1<br />
2000 Starting up BioMill 1 - 40.000 tpy<br />
2003 C<strong>on</strong>structi<strong>on</strong> BioMill 2<br />
2004 Starting up BioMill 2 - 40.000 tpy<br />
PG 1.4 – 2003-09-30 - 9<br />
suppliers<br />
material<br />
transport<br />
PG 1.4 – 2003-09-30 - 12<br />
Waste water treatment companies<br />
dried sewage sludge<br />
silo trucks<br />
pneumatic transport from truck to silos<br />
75
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