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The French standard MODECOM. Description of the method Weighing the sample Opening all the bags on the sieve of 100 mm Sieving at 100 mm Manual sorting of the > 100 mm ( 250 kg ) Sieving at 20 mm Manual sorting of 1/8 of the 20 to 100 mm (12kg) Sieving at 8 mm

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The french standard modecom
The French standard MODECOM

Description of the method

Weighing the sample

Opening all the bags on the sieve of 100 mm

Sieving at 100 mm

Manual sorting of the > 100 mm ( 250 kg )

Sieving at 20 mm

Manual sorting of 1/8 of the 20 to 100 mm (12kg)

Sieving at 8 mm

Weighing the categories

Drying sub-samples

Calculating the results

UR GERE - B. MORVAN - AWAST 28/06/01


The french standard modecom1
The French standard MODECOM

The method is good for

The sieves of 100, 20 and 8 mm

The categories and sub-categories

The method is bad for

The manual sorting

Work on wet matter

Sanitary conditions

The granulometry with fix plan sieves

Work on wet matter

The result is dependent on the operator

UR GERE - B. MORVAN - AWAST 28/06/01


Msw sorting on dry matter
MSW sorting on dry matter

Weighing the sample

Opening all the bags on the floor

Manual sorting : motley, bottles of glass, aerosols

Weighing about 20 kg, drying

Sampling 120 kg (a quarter)

Weighing the sample (120 kg) to dry

Weighing the rest (360 kg) to reject

Drying at 70 °C

Motleys and glass without aerosols

The quarter

UR GERE - B. MORVAN - AWAST 28/06/01


Msw sorting on dry matter continuation of the method
MSW sorting on dry matter(continuation of the method)

Sieving the quarter with a closed trommel at 100, 20 and 8 mm

Manual sorting

All the > 100 mm ( 50 kg )

5 kg of the 20-100 mm

500 g of the 8-20 mm

Ignition loss on the < 8 mm

Calculating the results

UR GERE - B. MORVAN - AWAST 28/06/01


Msw sorting on dry matter1
MSW sorting on dry matter

The method is good for

The sieves of 100, 20 and 8 mm

The categories and sub-categories

The manual sorting

Work on dry matter

Sanitary conditions

The granulometry with a trommel

Work on dry matter

The result is not dependent on the operator

Inconvenient

Opening the bags on the floor Necessity of a trommel

UR GERE - B. MORVAN - AWAST 28/06/01


Msw of lisbonne
MSW of Lisbonne

Dry matter : 53,9 %

UR GERE - B. MORVAN - AWAST 28/06/01


Msw sorting on dry matter2
MSW sorting on dry matter

Comparison of some results

UR GERE - B. MORVAN - AWAST 28/06/01


Msw sorting on dry matter3
MSW sorting on dry matter

The accuracy of the method

OM NSOM

absolute error % 0,97 1,26

relative error % 1,41 2,62

UR GERE - B. MORVAN - AWAST 28/06/01


For AWAST, is it necessary to sort waste ?

It will be dependent on what we search and the accuracy we’ll need

We have mainly 4 kinds of waste :

Selective collection

MSW

Biowaste

Green or yard waste

We have mainly 4 kinds of plant

Sorting plant

Composting plant (aerobic and sometimes anaerobic)

Incineration plant

Landfill

UR GERE - B. MORVAN - AWAST 28/06/01


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