National Research Institute for Labour Protection

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SOLUTIONS TO REDUCE THE RISKS RELATED TO
OCCUPATIONAL EXPOSURE TO DANGEROUS SUBSTANCES
National Research Institute for Labour
Protection Bucharest
Steluta NISIPEANU PhD Head of Chemical Risks
Department E-mail snisipeanu_at_protectiamuncii.ro
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SOLUTIONS TO REDUCE THE RISKS RELATED TO
OCCUPATIONAL EXPOSURE TO DANGEROUS SUBSTANCES

• TECHNICAL SOLUTIONS OF COLLECTIVE PROTECTION FOR
  THE EMPLOYEES EXPOSED TO CHEMICAL AGENTS IN THE
  WORKING ENVIRONMENT ACCORDING TO THE GENERAL
  NORMS OF LABOUR PROTECTION (N.G.P.M.), ART. 456.
• TECHNICAL SOLUTIONS FOR THE REPLACEMENT OF
  DANGEROUS CHEMICALS ACCORDING TO N.G.P.M., ART.
  455.
• TECHNICAL SOLUTIONS FOR NEUTRALIZING CHEMICAL
  AGENTS WASTES ACCORDING TO N.G.P.M., ART. 221.

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Technical Solution for the Concomitant
Neutralization of Nitrogen Oxides and Sulphur
Oxides
Utilization field

• Industrial sources of nitrogen and sulphur
  oxides pickling galvanization, dissolution
  metal recovery (e.g. molybdenum, wolfram etc),
  combustion and calcination processes
• initial concentration NOx 1000 - 3000 mg /
  cu.m
• - Initial concentration SO2 500 - 1000 mg / cu.m.

Designer
I.N.C.D.P.M. Bucharest Based on Patent RO 100649
Performer
S.C. POLIMAT S.R.L. Brasov
Plant characteristics

• Dimensions h 2500, di 500
• Construction type 3 monoblocks of reinforced
  composite material
• Neutralization agent alkali solution with
  oxidizing additives
• Yield 90 - 92

Industrial application
S.C. STEAUA ELECTRICA S.A. Fieni S.C.
INSTAELECTRIC S.A. Focsani (experiments)
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Cleaning Plant for the Air with Volatile
Component Hydrocarbons
Utilization field
Sources of volatile component hydrocarbons from
chemical industry, asphalt manufacture,
briquetting with organic binders, etc.
Designer
I.N.C.D.P.M. Bucharest Based on Patent RO
11216231
Performer
I.N.C.D.P.M. Bucharest
Industrial application
Plant characteristics
Footwear industry

• 4 filtration modules
• Easy construction and exploitation
• Low energy consumption
• Yield 90 - 95

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Foam Humid Filter
Utilization field
Cleaning of waste gases with gaseous pollutants
and recoverable powders content.
Designer
I.N.C.D.P.M. Bucharest Based on Patent RO 112339B
Performer
I.N.C.D.P.M. Bucharest S.C. POLIMAT S.R.L. Brasov
Plant characteristics

• Capability of concomitant retention and
  neutralization of powders and gaseous pollutants
  
• Powder recovering capability
• Low investment costs, easy plant exploitation,
  reduced overall dimensions
• Yield 90

Industrial application
Ferrite Factory - Urziceni
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Substitution of Perchlorethylene at Photopolymer
Sheet Processing
Technical solution characteristics
Utilization field
Processing of photopolymer sheets to be used at
photographic film printing.

• Substituting perchlorethylene by a solvent
  mixture of lower toxicity e.g. butyl toluene and
  acetate or butyl alcohol.

Designer
I.N.C.D.P.M. Bucharest
Advantages

• Reducing risk level for the employees exposed to
  solvents.
• Reducing hazards for the environment by the
  release of less toxic wastes.

Industrial application
S.C. UNIPLAST S.A. Focsani
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Neutralization Method of Toxic Wastes with
Cyanide Contents Resulted of Thermochemical
Treatment Processes in Salt Baths
N2, CO2
Utilization field
Neutralization of toxic wastes with cyanide
contents resulted of thermochemical treatments in
salt baths.
700 10000C
Designer
I.N.C.D.P.M. Bucharest
Treatment kiln
Cyanide waste
Inactive part recycling
Performer
Thermochemical treatment section
I.N.C.D.P.M. Bucharest
Plant characteristics
Industrial application

• Cyanide neutralization to non-toxic compounds
• Recycling 60 of bath inactive part
• Low investment costs
• Yield 95 98

Semanatoarea Bucharest S.C. Aversa S.A. Bucharest
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Coating Composition for Waste Toxic Metals
Utilization field
TREATING AGENTS OF WASTES
Other treating agents
Welding wastes
Waste of galvanic bath regeneration
Furnace scoria
Sanding waste

• Metal coating workshops
• Ferrous / non-ferrous metal foundries
• Ore processing plants
• Work stations of water cleaning.

Metal precipitation
Designer
Metal insolubilization
I.N.C.D.P.M. Bucharest
Toxic metal coating
Treated waste
Toxic metal waste
Performer
I.N.C.D.P.M. Bucharest
Plant characteristics

• Use of 3 waste types as treating agents
• Easy process control
• Capability of using treated waste as
• building material.

Industrial application
AKER Tulcea
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PRESENT CONCERNS

• Neutralization of laboratory depreciated
  substances

Utilization field
Neutralization of testing laboratory wastes
Objectives

• Identifying actual needs in terms of
  neutralizing laboratory wastes through the
  dissemination of questionnaires to domestic
  laboratories.
• Investigation on neutralization capabilities of
  wastes through chemical, physical, biochemical
  methods i.e. documentation and lab experiments.
• Dissemination of outcomes.

• Adsorbent Materials Impregnated with
  Neutralization Solutions

Utilization field
Retention and neutralization of lab liquid wastes.
Objectives

• Obtaining adsorbent materials of high specific
  surface.
• Setting up specific impregnation solutions for
  adsorbed waste stabilization / neutralization.
• Dissemination of outcomes.