ENVIRONMENTAL IMPACT RELATED PROBLEMS INVOLVING HOT MIX ASPHALT PLANTS IN EUROPE AND THE UNITED STATES

THIS ARTICLE IS ALMOST ENTIRELY DEVOTED TO THE ENVIRONMENTAL IMPACT OF ASPHALT PLANTS IN THE USA, WHERE, EMISSION CONTROL COMMENCED LATER THAN IN EUROPE BECAUSE OF THE THINNER POPULATION. REFERENCE IS MADE TO THE 'CLEAN AIR ACT OF 1970 WHICH LIMITS THE AVERAGE EMISSION OF DUST TO 290MG/NM3 FOR EXISTING PLANTS. THE PROBLEMS OF DUST CONTROL WITH ASPHALT PLANTS (WHERE RECENT LEGISLATION LIMITS EMISSION TO 70MG/NM3 ) IS DISCUSSED IN DETAIL, PARTICULAR REFERENCE BEING MADE TO COSTS, CENTRIFUGAL COLLECTORS, SCAVENGER DUST SYSTEMS AND SECONDARY WET AND DRY COLLECTION SYSTEMS. SMOKE EMISSIONS ARE NEXT DEALT WITH. IN SOME REGIONS SMOKE FROM THE MIXER GATE AND DURING HAULAGE VIOLATE THE OPACITY RULE; REFERENCE IS ALSO MADE TO THE REDUCTION OF CO. RECYCLING OF WATER HAS SOLVED THE PROBLEM OF DISCHARGING WASTE WATER, USE BEING MADE OF SETTLING PONDS AND SCRUBBERS. DETAILS OF THE NOISE LEVELS PERMITTED BY THE OCCUPATIONAL SAFETY AND HEALTH LAW ARE GIVEN AND REFERENCE IS MADE TO PENDING REGULATIONS OF THE ENVIRONMENTAL PROTECTION AGENCY GOVERNING THE NOISE THAT MAY BE TRANSMITTED FROM PLANTS. BRIEF REFERENCE IS MADE TO THE EMISSION OF ODOURS AND THE PROBLEM OF ITS MEASUREMENT. IT IS CONCLUDED THAT THERE IS A GREAT DIVERGENCE OF CONTROL STRATEGIES IN DIFFERENT COUNTRIES AND THE COST OF IMPROVEMENT WILL BE GREAT.

  • Corporate Authors:

    Asphalt and Coated Macadam Association, Limited

    25 Lower Belgrave Street
    London SW1,   England 
  • Authors:
    • Kloiber, F
  • Publication Date: 1974-4

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Filing Info

  • Accession Number: 00081139
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Apr 8 1975 12:00AM