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Composition and reactivity of ash from sewage sludge

Journal Article:

Abstract

Sewage sludge and sludge ash produced at 450 to 1050/sup 0/C in the laboratory or in a multiple hearth incinerator were analyzed by chemical and X-ray diffraction methods. Among the ash components were 23 to 32 percent calcium and magnesium phosphates and the following percentages of heavy metals: Zn 0.9, Cu 0.2, Pb 0.1, Cr 0.07, Ni 0.02, and Cd 0.006. As shown by EDTA-extraction, the reactivity of heavy metals was higher in ash produced at 450/sup 0/C than in dry sludge, but lower in ash produced above 800/sup 0/C. Phosphate in the 800 to 900/sup 0/C samples was dissolved in citric acid but not in citrate.
Publication Date:
Jan 01, 1976
Product Type:
Journal Article
Reference Number:
ERA-02-046310; EDB-77-108458
Resource Relation:
Journal Name: Ambio; (Norway); Journal Volume: 5:1
Subject:
54 ENVIRONMENTAL SCIENCES; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ASHES; CHEMICAL ANALYSIS; SEWAGE SLUDGE; CADMIUM; CALCIUM PHOSPHATES; CHROMIUM; CITRATES; CITRIC ACID; CLAYS; COPPER; DENMARK; EDTA; LEAD; MAGNESIUM PHOSPHATES; METALS; NICKEL; REACTIVITY; SAND; SOLVENT EXTRACTION; TEMPERATURE DEPENDENCE; X-RAY DIFFRACTION; ZINC; ALKALINE EARTH METAL COMPOUNDS; AMINO ACIDS; CALCIUM COMPOUNDS; CARBOXYLIC ACID SALTS; CARBOXYLIC ACIDS; CHELATING AGENTS; COHERENT SCATTERING; DIFFRACTION; ELEMENTS; EUROPE; EXTRACTION; HYDROXY ACIDS; MAGNESIUM COMPOUNDS; MINERALS; ORGANIC ACIDS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; PHOSPHATES; PHOSPHORUS COMPOUNDS; RESIDUES; SCANDINAVIA; SCATTERING; SEPARATION PROCESSES; SEWAGE; TRANSITION ELEMENTS; WASTES; 520200* - Environment, Aquatic- Chemicals Monitoring & Transport- (-1989); 400100 - Analytical & Separations Chemistry
OSTI ID:
7307032
Research Organizations:
Royal Veterinary and Agricultural Univ., Copenhagen
Country of Origin:
Norway
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: AMBOC
Submitting Site:
TIC
Size:
Pages: 32-35
Announcement Date:

Journal Article:

Citation Formats

Willems, M, Pedersen, B, and Jorgensen, S S. Composition and reactivity of ash from sewage sludge. Norway: N. p., 1976. Web.
Willems, M, Pedersen, B, & Jorgensen, S S. Composition and reactivity of ash from sewage sludge. Norway.
Willems, M, Pedersen, B, and Jorgensen, S S. 1976. "Composition and reactivity of ash from sewage sludge." Norway.
@misc{etde_7307032,
title = {Composition and reactivity of ash from sewage sludge}
author = {Willems, M, Pedersen, B, and Jorgensen, S S}
abstractNote = {Sewage sludge and sludge ash produced at 450 to 1050/sup 0/C in the laboratory or in a multiple hearth incinerator were analyzed by chemical and X-ray diffraction methods. Among the ash components were 23 to 32 percent calcium and magnesium phosphates and the following percentages of heavy metals: Zn 0.9, Cu 0.2, Pb 0.1, Cr 0.07, Ni 0.02, and Cd 0.006. As shown by EDTA-extraction, the reactivity of heavy metals was higher in ash produced at 450/sup 0/C than in dry sludge, but lower in ash produced above 800/sup 0/C. Phosphate in the 800 to 900/sup 0/C samples was dissolved in citric acid but not in citrate.}
journal = {Ambio; (Norway)}
volume = {5:1}
journal type = {AC}
place = {Norway}
year = {1976}
month = {Jan}
}