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Mercury containing wastes - Metallic mercury recovery -. Workshop on the management of heavy metals, especially metallic mercury Bucharest, 06 November 2009. Current situation. Metallic mercury in products and applications. Total consumption ~ 320 - 530 t/a

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Mercury containing wastes metallic mercury recovery

Mercury containing wastes

- Metallic mercury recovery -

Workshop on the management of heavy metals, especially metallic mercury

Bucharest, 06 November 2009


Mercury containing wastes metallic mercury recovery

Current situation

Metallic mercury in products and applications

Total consumption ~ 320 - 530 t/a

Most important for the use of mercury

• Chlor- Industry

• Dental amalgams

• Chemicals

COWI A/S –Final report [2008]


Mercury containing wastes metallic mercury recovery

Regulation EC (No) 1102/2008

Purpose

▫ Phase out mercury exports by 2011

▫ Reduce demand and supply of mercury

▫ Reduction of mercury levels in the environment

▫ Reduction of mercury emissions

Article 2. Metallic mercury

▫ No longer used in the Chlor-alkali industry

▫ Gained from cleaning of natural gas

▫ Gained from non-ferrous mining /smelting operations

▫ Extracted from cinnabar ore

From 15 March 2011

Considered as waste and has to be disposed of


Mercury containing wastes metallic mercury recovery

Regulation EC (No) 1102/2008

Metallic mercury

Regulated according to Regulation (EC) No 1102 / 2008

Mercury containing wastes

• Activated carbons

• Hg containing wastes from Chlorine Industry

▫ Waste from the production process

▫ Wastes from final deconstruction

• Hg containing waste from commerce and Industry

Not regulated according to Regulation (EC) No 1102 / 2008


Mercury containing wastes metallic mercury recovery

Mercury stocks

Accumulated Hg

Total 34.000 t

Chlor-Alkali Industry

▫ ~10.900 to Metallic mercury

▫ ~11.000 to

Contained in waste & site contamination

COWI A/S –Final report [2008]


Mercury containing wastes metallic mercury recovery

Mercury containing wastes

WHAT ABOUT MERCURY CONTAINING WASTES ?

OPTIONS

RECOVERY

DISPOSAL

▫ Landfill

▫ Underground storage


Mercury containing wastes metallic mercury recovery

Scenario

11 / 2009

03 / 2011

Waste containing mercury

Waste containing mercury

Hg recovery

Disposal

Hg recovery

Disposal

­Hg emissions

­ Environmental impacts

­Hg emissions

­ Environmental impacts

stipulated in Swedish law

Hg

Distribution & Sales

Disposal

of Hg free waste

Hg Stabilisation

Disposal

of Hg free waste

+ Hg removal from the ecosystem

+ Hg removal from the

ecosystem

+ Marketing


Mercury containing wastes metallic mercury recovery

Metallic mercury recovery


Metallic mercury recovery

Metallic mercury recovery

Vacuum dryer

Hg containing sludges

• Drying and distillation

• Maximum evaporation of water

• Appropriate for organic material and

hydrocarbons

• Pre-treatment step for rotary distillation

• Max. Temperature ~ 350 °C

• Vacuum process-emission free


Metallic mercury recovery1

Metallic mercury recovery

Rotary kiln

Carbons, Catalysts, Hg sludges, metal containing

residues

• Distillation - no incineration

• Max. Temperature ~ 800 °C

• Inert Atmosphere

• Evaporation of mercury

• Gas Scrubber

• Condensation of mercury

• Exhaust gas cleaning


Metallic mercury recovery2

Metallic mercury recovery

Lamp recycling in “Crush-wash-sieve system”

Mercury containing lamps and tubes (WEEE)

1. Crusher

2. Washing Unit

3. Sifting Unit

4. Colour and Metal separator

Oversize

Metal

& Colour

separator

Purified Soda-Lime Glass

Sifting


Metallic mercury recovery3

Metallic mercury recovery

Mercury purification

• Further cleaning of recovered mercury

• Pure Mercury, purity from 99,999 up to 99,999999 %

• Transport in 34,5 kg steel flask or 1 t container

• Distribution and sales in EU and abroad


Mercury containing wastes metallic mercury recovery

DELA GmbH

• Holding all required permits according to ISO 9001 and ISO 14000

• Certificate 0119 : Specialist Waste Disposal Company


Mercury containing wastes metallic mercury recovery

Thank you foryour attention !

Miriam Ortheil

Project Engineer

DELA GmbH

[email protected]

www.delagmbh.de


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