摘要:

Ash, char, and/or slag materials from eight gasification processes representing a variety of feed coals and also temporarily stored solids from two liquefaction processes were examined for their content and aqueous leachability of organic compounds. The results showed the gasification wastes to De, in general, very low in methylene chloride‐extractable aromatic (0–6.3 μg/g) and aliphatic (0–70 μg/g) hydrocarbons, in sharp contrast with the significantly higher concentrations (75–760 and 260–1300 μg/g aromatic and aliphatic hydrocarbons, respectively) observed in the liquefaction solids. The negligible aqueous leachability of organics from all samples, except for one liquefaction solid, indicated that leachates from these wastes should not contribute directly or significantly to the degradation of surface and ground water quality. Temporary storage of the one liquefaction solid showing leachable organics in a manner that would prevent leaching is recommended.

ISSN:0360-1226    

DOI:10.1080/10934528209375075

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

ISSN:0360-1226    

DOI:10.1080/10934528209375064

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor