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Anaerobic Digestion of Municipal Solid Waste - faculty.ait.ac.th ...

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<strong>Anaerobic</strong> <strong>Digestion</strong> <strong>of</strong> MSW in Thermophilic Continuous Operation<br />

Digested Quality<br />

Heavy metals<br />

below <strong>th</strong>e<br />

standards<br />

Dutch standard<br />

(Clean compost)<br />

WHO standards<br />

(Proposed)<br />

Results & Discussion<br />

Heavy metals (mg/kg DM)<br />

Cd Cr Cu Pb Ni Zn Hg<br />

1 50 60 100 20 200 0.3<br />

3 50 80 150 50 300 -<br />

Digestate 0.6 13.8 55 0 12 106 0.04<br />

Nutrient Values (NPK) were also higher <strong>th</strong>an Thai Compost Standard<br />

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