Absence of asbestos in municipal sewage sludge ashes

Journal Article · Wed Jun 01 04:00:00 EDT 1988 · Bulletin of Environmental Contamination and Toxicology; (USA)

DOI:https://doi.org/10.1007/BF01697518· OSTI ID:6808435

Patel-Mandlik, K J; Manos, C G ^[1]; Lisk, D J ^[2]

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1. Environmental Science and Engineering, Inc., Gainesville, FL (USA)
2. Cornell Univ., Ithaca, NY (USA)

In earlier studies, asbestos was found in sewage sludges in several cities in the United States using x-ray diffraction, high power light optical microscopy, polarized light microscopy or electron microscopy. In a number of cities in the United States, sewage sludge is incinerated at temperatures up to 1,000{degree}C. Temperatures of 550{degree}C or higher dehydroxylate the asbestos lattice resulting in alteration or even destruction of the mineral. Since refractive index and other key parameters used to identify asbestos minerals change above 550{degree}C, it was of interest to analyze for the presence of asbestos in typically produced municipal sludge ashes. In the work reported here, sewage sludge ashes from 10 American cities were obtained and analyzed for the presence of asbestos.

• OSTI ID: 6808435
• Journal Information: Bulletin of Environmental Contamination and Toxicology; (USA), Journal Name: Bulletin of Environmental Contamination and Toxicology; (USA) Vol. 40:6; ISSN 0007-4861; ISSN BECTA
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ASBESTOS
ASHES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
COMBUSTION
MANAGEMENT
MICROSCOPY
MUNICIPAL WASTES
OPTICAL MICROSCOPY
OXIDATION
PROCESSING
QUALITATIVE CHEMICAL ANALYSIS
RESIDUES
SEWAGE
SEWAGE SLUDGE
SLUDGES
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES