Composting of pulp and paper mill fly ash with wastewater treatment sludge

1999 ◽  
Vol 70 (3) ◽  
pp. 217-224 ◽  
Author(s):  
Graydon A.R Hackett ◽  
Charles A Easton ◽  
Sheldon J.B Duff
Keyword(s):  
Wastewater Treatment ◽  
Fly Ash ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Pulp And Paper Mill

Fly-ash from a pulp and paper mill: A potential liming material for agricultural soils in Western Newfoundland.

2019 ◽  
Vol 61 (1) ◽  
pp. 1.9-1.15
Author(s):  
Gnanakaran Maheswaran ◽  
◽  
Manokararajah Krishnapillai ◽  
Doreen Churchill ◽  
Lakshman Galagedera ◽  
...  
Keyword(s):  
Fly Ash ◽  
Soil Ph ◽  
Element Concentration ◽  
Agricultural Soils ◽  
Heavy Metal Concentration ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Pulp And Paper Mill ◽  
Quality Guidelines ◽  
Liming Material

Most agricultural soils in Western Newfoundland are acidic and need lime to raise soil pH to be productive. Corner Brook Pulp and Paper Ltd produces a substantial amount of fly-ash, disposed of at a local landfill. This study was conducted to assess the potential for using fly-ash as a liming material for agricultural soil (pH 5.5) in Western Newfoundland. Heavy metal concentration in the soil and fly-ash were analysed and compared with soil and compost guidelines. As per quality guidelines, only part of the lime requirement can be substituted by fly-ash. The percentage may vary depending on initial soil pH and the desired pH for the crop to be grown. The total lime requirement can be met when fly-ash is applied combined with other soil amendments low in trace element concentration.

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