SYMPOSIA PAPER Published: 01 January 1997

Agricultural Land Application of Pulp and Paper Mill Sludges in the Donnacona Area, Quebec: Chemical Evaluation and Crop Response


Primary paper mill sludges from a thermomechanical pulp (TMP) mill were land applied at the rate of 20 metric ton per hectare (t/ha) for agricultural purposes in the Donnacona area, Quebec, in May 1994 and May 1995. Eleven agricultural sites featuring various crops were tested over two seasons to measure the impact of TMP primary paper mill sludges on soil, plant tissue and crop yield. Cereal and potato crops showed a significant increase in yield.

TMP Primary sludges were also land applied at the rate of 225 t/ha for land reclamation purposes of one site at the end of 1994. Soils were tested every second month. Chemical crop analyses were also performed. The first year crop response was satisfactory. Combined (primary and secondary) TMP sludges were added at the rate of 200 t/ha in the beginning of 1996. Soil, vadose zone water and crop analysis are being investigated. Impressive crop responses were obtained in the 1996 season.

Author Information

Veillette, AX
Ecole Polytechnique, Montreal, Quebec, Canada
Tanguay, MG
Ecole Polytechnique, Montreal, Quebec, Canada
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Developed by Committee: D18
Pages: 141–154
DOI: 10.1520/STP15648S
ISBN-EB: 978-0-8031-5351-6
ISBN-13: 978-0-8031-2470-7