Projecto ERASE 1

The Erase Project

Porto, April 17, 2018

Diogo Almeida Santos

Remediation of an industrial site

Projecto ERASE 2

Air view of the Chemical Complex of Estarreja

Projecto ERASE 3

Process integration at CCE

Hydrochloric gas

Chlorine CausticAniline

MD

I

Market

Benzene

Ammonia

Salt

Electricity

Natural Gas

Formaldehyde

Vynil chloride

PVC

Market

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Aniline

Nitrobenzene

Chlor-alcalis

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Modern technologies

Automation & control systems

Efficiency of the operations

Productivity

Expansion

New methods of organization & management

BAT in the industrial operations

SQE management systems

Vinil 2010- voluntary commitment

CAP (PACOPAR)

Clean technologies

Reduction of emissions

Effluents out to SIMRIA

High purity raw materials

Recyclings & recoveries

Erase project

Economic developmentEnvironment care

Responsible Care

Projecto ERASE 4

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The past (from 60 years ago)

� ammonia

� sulphuric acid

� ammonium sulphate

� fertilizers compounds

Fertilizers industry :

Chlor-alkali industry :

� chlorine & caustic soda

� hydrochloric acid

� sodium hypochlorite

PVC industry :

� vinyl chloride

� PVC polymer

ashes & pyrites sludges +

contaminated soils 115

Industrial wastes 103 m3

brine sludges

+ contaminated soils 166

PVC wastes

+ lime sludges 32

313 Total :

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Phase I

Environmental remediation of

accumulated historical industrial

wastes

Projecto ERASE 5

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Objectives of the Erase project

� to stop the contamination of soil and water table,resulting from the leaching process;

Minimization of environmental impacts associated with the

historical industrial wastes accumulated on site, in order :

� to recover the areas used for the landfill of thewastes.

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Main points in the design concept

� Guarantee of effective impermeabilization of theconfinement structure to eliminate the leachingprocess;

� Quick execution » stop leaching process asap;

� redundancy

� Simple, effective solution

� Not to affect sensible places with population oragriculture land;

� Inside the industrial area and previously used for disposal of wastes

� Stability of the underground base;

� Sandy, homogeneous soil, 10 to 15 m height, over a natural shale formation

Projecto ERASE 6

PEAD # 1,5

PEAD # 2

construction scheme

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pyrites wastes and contaminated soils

Projecto ERASE 7

13

impermeabilization of the base (hdpe #2 mm)

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deposition of layers of pyriteswastes and contaminated soils

Projecto ERASE 8

152004 8 17

deposition of mercury contaminated wastesover a lime+sand layer

landfill of mercury contaminated wastes(before remediation)

Projecto ERASE 9

landfill of mercury contaminated wastes(after remediation)

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Impermeabilization of the cover

(bentonite membrane)

Projecto ERASE 10

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final works

Air view of the Chemical Complex of Estarreja

Projecto ERASE 11

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Monitoring wells network

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monitoring well

Projecto ERASE 12

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Projecto ERASE 13

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Phase II

Environmental remediation of

hydraulic ditch (vala de S. Filipe)

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(hydraulic ditches)

Projecto ERASE 14

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Lay-out of

vala de S. Filipe

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Projecto ERASE 15

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