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Bioremediation continued from page 23 believe it is a panacea for all organic ronment. number is sure to grow. contamination. Not all organics are Myth No.4—One must spend a lot or Myth No. 2—Bioremediation may be equally biodegradable. While signifi- money on risky treatability studies. good ror the environment, but it is not cant advances have been made in the Screening methodologies for in situ cost effective. Bioremediation is typi- treatment of halogenated solvents and and ex situ bioremediation processes cally the most cost-effective means to pesticides, most successful commercial have been developed.These procedures treat soils and sludges contaminated applications have treated non-haloge- allow many sites to be evaluated cost with biodegradable heavy organics, nated compounds. According to EPA's effectively without requiring a treata- The technology, like all others, is recent survey of the industry, more bility study. It has been our experience afTected by economies of scale and than 70 percent of the full-scale biore- that more than 95 percent of the site-specific situations. Some site con- mediation projects involved petroleum, properly screened sites will be found to ditions, such as soils with a high clay wood preservatives or coal tar com- be good candidates for bioremediation content or soils that exhibit a toxicity pounds. during the treatability work. to microorganisms, may make it The two successful Superfund pro- Supporting information for the ex impractical to apply the technology at jects completed to date involved wood situ screening methodology and the in every site. preserving chemicals. situ methodology can be found in the The technology has been demon- While many successful bioremedia- references.4.s.6 i strated in the field to be cost effective. tion projects have treated polynuclear Myth No. 5 — Bioremediation is Responsible parties have saved more aromatic hydrocarbons (PAHs), one simple and straightforward. Any good than $250 million by implementing should be warned that not all PAH earth moving contractor can apply it. bioremediation programs, as opposed compounds biodegrade at the same While bioremediation is not a proprie- to the next most cost-effective process. rate. In particular, the heavier and less tary technology, enough data still are Myth No. 3 — Bioremediation can mobile PAHs do not biodegrade not available in the public domain to treat any type or organic contamination. quickly. However, these compounds ensure success at every site. While While many people are skeptical of the typically are not mobile and pose little numerous success stories have been technology's practicality, others threat to human health and the envi- associated with bioremediation, there o 0 Source ssuoms Mont Lr .4 THE SMART APPROACH TO MEETING YOUR HAZARDOUS MATERIAL NEEDS • Hazardous Material Storage Buildings ' • Portable Secondary Containment Pallets • Liquid Flammable Cabinets • Absorbents and Encapsulates � DIY STANDARD STORAGE BUILDING #im FEATURES: Heavy Duty Steel Construction *Measure 0 O ,NO,,SO2,HC(CH and • Forklift Loadable non-CH4) z.CO,, 2 a • Forklift Portable ■ Best available technology—Analyzers or Systems • Double Stacking Capability ■Stability of± 1% per week(not day) ■Onsite Certifiable n 0 For more information contact:Horiba Instruments Inc- 800-345-5776 ® 17671 Armstrong Avenue,Irvine,California 92714 8530 WILSHIRE BLVD. #301 Phone:1 18001 4 HORtBA,FAX(714)250-0924 BEVERLY HILLS, CA 90211 In California prone(7141250-4811 Circle 28 on card. Circle 16 on card. 24 ENVIRONMENTAL PROTECTION