Aerobic digester sludge nitrogen/metal ratios and the sludge utilization guidelines
By: by J. Smart.
Contributors: Ontario. Ministry of the Environment. Wastewater Treatment Section.
Publisher: Wastewater Treatment Section, Pollution Control Branch, Ontario Ministry  of the Environment
Published: 1981
Place of publication: [Toronto]
Language: eng
Number of pages: 46
Subjects: Sewage sludge as fertilizer -- Ontario.; Sewage sludge digestion.; Sewage sludge -- Recycling -- Ontario.; Sewage sludge -- Characterization -- Ontario.
Notes: "September 1981."

Cover title.

"TN 7028."