ENHANCED MOBILITY OF DENSE NONAQUEOUS-PHASE LIQUIDS (DNAPLs) USING DISSOLVED HUMIC ACIDS
The specific objectives of this subtask are as follows: � Evaluate the suitability of using humic acids to enhance the solubility and mobility of DNAPL contaminants sorbed to soils. � Evaluate the toxicity and bioavailablity of the DNAPLs to biodegrading microorganisms. To meet the first objective, the Energy & Environmental Research Center (EERC) evaluated a set of humic acids (two) with different chemical compositions and polarities for the following: � Ability of the humates to mobilize/solubilize selected (three) DNAPLs � Mobilization/solubilization in batch soil�water experiments (one soil) � Removal rate via biotreatment with a well-established active microbial culture. The second objective was met by evaluating the inhibiting effects of a leonardite-derived humic acid on active microbial populations.
- Research Organization:
- Federal Energy Technology Center (FETC), Morgantown, WV, and Pittsburgh, PA
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC21-93MC30097
- OSTI ID:
- 7465
- Report Number(s):
- DE-FC21-93MC30097--35; ON: DE00007465
- Country of Publication:
- United States
- Language:
- English
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