Biowaste Management in Austria on the Example of Vienna - ÖGUT

oegut.at

Biowaste Management in Austria on the Example of Vienna - ÖGUT

ong>Biowasteong> ong>Managementong> ong>inong> ong>Austriaong> on the Example of Vienna

1.1 Current State of the ong>Biowasteong> ong>Managementong> ong>inong> Vienna

1.1.1 ong>Biowasteong> Generation

In Vienna, a total of 90.423 t compostable material was generated ong>inong> 2002 (73.191 t over

the bio-bong>inong> collection, 9.515 t over collection islands and ong>inong> total, 7.717 t over the bulky waste

collection, street cleanong>inong>g, ong>inong>dustrial and other deliveries):

Waste generation ong>inong> Vienna ong>inong> 2002 (MA 48 collection and ong>inong>dustrial deliveries)

Waste Types

MA 48 totals

Problem.

(primary generation)

2002

Mixed

Waste

Inert

Waste

Recyclable

Waste

ong>Biowasteong>

Waste &

Waste

Kitchen Oil

SUM

2002

collection system / origong>inong>

[ t ]

[ t ]

[ t ]

[ t ]

[ t ]

[ t ]

System collection MA 48 508.636 156.814 73.191 738.641

Waste islands MA 48 27.803 56.607 38.195 9.515 2.573 134.694

Problem. waste collection MA 48 264 264

Bulky waste collection MA 48 2.975 22 3.672 222 207 7.097

Trough collection MA 48 11.353 4.103 1.492 16.949

Street cleanong>inong>g MA 48 34.925 12.291 142 396 47.755

Other collection MA 48 6.227 262 2.685 691 25 9.890

SUM collection MA 48 591.920 69.183 205.612 85.506 955.289

Industrial deliveries MA 48 3.388 19.816 4.556 4.917 32.894

TOTAL MA 48 595.307 88.999 210.168 90.423 988.184

Source: MA 48 Leistungsbericht 2001 2002 http://www.wien.gv.at/ma48/rtf/lbawteil1.rtf, pp. 11

The biowaste share ong>inong> Vienna is lower than ong>inong> Niederösterreich (cr. Chapter 7.2), amountong>inong>g

to 9% of the total waste generated (problematic waste excluded):

1


Waste Generation ong>inong> Vienna ong>inong> 2002

Mixed Waste

61%

Inert waste

9%

ong>Biowasteong>

9%

Recyclable Waste

21%

Source: MA 48 Leistungsbericht 2001 2002 http://www.wien.gv.at/ma48/rtf/lbawteil1.rtf, pp. 11

Graphics: ÖGUT

In 2000, the biowaste collection was ong>inong>tensified ong>inong> the 21st und 22nd Viennese Municipality

Districts. Durong>inong>g 2001-2002, it was successfully extended onto the other outer districts. In the

progress of this reorientation, public bio-bong>inong>s have been removed. Each garden owner has

been offered an own bio-bong>inong> at his disposal. In parallel, emptyong>inong>g sequence has been

reduced from twice down to once a week, so to ensure a greater fillong>inong>g grade of the

contaong>inong>ers.

A number of experiments have detected a quite low amount collected (and thus too high

collection costs) ong>inong> the ong>inong>ner districts, with the material provong>inong>g also a negative impact on the

compost quality.

Source: MA 48 Leistungsbericht 2001 2002 http://www.wien.gv.at/ma48/pdf/lbawteil01.pdf (pp. 32-33)

Utilisation of biowaste material as a resource for compost production demonstrates vividly

the waste-and-resource recyclong>inong>g cycle. Approximately 30% of the ong>inong>itially collected organic

material remaong>inong>s as high-quality compost at the end of the production cycle. The product is

distributed, free of charge, among the Viennese agricultural companies (ong>inong> 2002: 20.690 t

beong>inong>g ca. 60% of the total compost amount), the forestry (ca. 30%) and private buyers and

small garden unions (ong>inong> total ca.10%).

Source: MA 48 Leistungsbericht 2001 2002 http://www.wien.gv.at/ma48/pdf/lbawteil03.pdf

2


1.1.2 Compost Pre-processong>inong>g

Separately collected biowaste, together with structural material from the ong>inong>dustrial deliveries

(maong>inong>ly tree and bush cut-offs), are prepared withong>inong> the waste treatment facility of Vienna

(WTF) for compostong>inong>g to follow.

The ong>inong>put is sieved, impurities are separated, and fong>inong>ally it is homogenised together with the

hackled structural material for 10 mong>inong>. ong>inong> a mixong>inong>g drum. The material pre-processed this way

is transported to the Lobau compostong>inong>g plant.

In 2002, the pre-processong>inong>g turnover of the facility amounted to 90.423 t biowaste, of which

3.086 t impurities separated, thus 87.867 t pre-processed compost material were delivered ong>inong>

the Lobau compost plant.

Source: MA 48 Leistungsbericht 2001 2002 http://www.wien.gv.at/ma48/pdf/lbawteil02.pdf (pp. 41)

1.1.3 Compostong>inong>g Plants

The processong>inong>g capacity of the Lobau and Schafflerhof compostong>inong>g plants is 120.000 t

biogenous material.

At the Lobau compostong>inong>g plant the ong>inong>tensive (maong>inong>) rottong>inong>g process of 1-3 months takes

place. Water contents, nitrate, nitrite, oxygen saturation, pH value, conductivity, heavy metals

and vegetal compatibility are regularly tested. Quality control is performed by an external

laboratory.

After the post-rottong>inong>g process, the compost is transported to the Schafflerhof compostong>inong>g

plant where it undergoes sievong>inong>g and is stored durong>inong>g placement.

Source: MA 48 Leistungsbericht 2001 2002 http://www.wien.gv.at/ma48/pdf/lbawteil02.pdf (pp. 47-48)

1.1.4 Waste Fees

Fees are calculated dependong>inong>g on the volume and the emptyong>inong>g frequency of the waste bong>inong>s.

The fee charged for the smallest unit beong>inong>g the 110/120 l bong>inong> (residual waste bong>inong>) and a oncea-week

emptyong>inong>g (standard mong>inong>imum set by the Viennese Waste ong>Managementong> Act) has been

3,16 Euro song>inong>ce May 2002. Thus the mong>inong>imum annual fee amounts to 164,32 Euro per

household.

Availability of contaong>inong>ers for recyclable waste, bio-bong>inong>s and additional service by the MA 48

(collection of problematic waste, supervision of the waste islands and the „Waste Phone“)

are all covered by the fee for residual waste cited above, i.e. no additional fees are charged,

which contributes to an improved separate waste collection by the citizens. An additional

fong>inong>ancial support is given by the Altstoff Recyclong>inong>g ong>Austriaong> AG (ARA) by cost sharong>inong>g for the

collection of the licensed packagong>inong>g waste withong>inong> the recyclable waste.

Quelle: MA 48 Leistungsbericht 2001 2002 http://www.wien.gv.at/ma48/pdf/lbawteil01.pdf pp. 78

3


1.2 ong>Biowasteong> ong>Managementong> Goals ong>inong> Vienna

Based on the Regulation with hygiene provisions of the European Parliament and the

Council (Regulation (EC) 1774/2002 from 03.10.2002), the City of Vienna has developed a

new concept on its municipal biowaste management. Accordong>inong>g to this, organic waste

origong>inong>atong>inong>g from the ong>inong>ner districts is foreseen to be collected ong>inong> „kitchen bong>inong>s“ whose contents

(maong>inong>ly food and kitchen waste) will be then utilised ong>inong> the biogas plant of EbS Simmerong>inong>g

(capacity of ca. 30.000 t/a). In the outer districts, the current bio-bong>inong>s will be replaced by

garden bong>inong>s for designated collection of only garden waste. The latter will be forwarded to the

Lobau compostong>inong>g plant for compost production and utilisation as fertiliser.

A simultaneous availability of a kitchen and a garden bong>inong> is not foreseen, based on the

consideration that ong>inong> areas with high quotes of kitchen and food waste (ong>inong>ner districts, urban

areas of high population and service density such as lunchrooms, licensed ong>inong>n-houses) little

garden waste origong>inong>ates, and ong>inong> turn, ong>inong> areas of a domong>inong>ant one-family-house structure

(outer districts), the amount of kitchen and food waste is small compared to garden waste.

Source:

„EU Hygieneverordnung und biogene Abfälle – das neue Bioabfallwirtschaftskonzept der Stadt Wien“,

DI W. Rogalski, ong>inong> Waste Magazong>inong>, 2/2003, pp. 5-8

4

More magazines by this user
Similar magazines