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.

scholarly journals Pulp and Paper Mill Fly Ash: A Review

2019 ◽  
Vol 11 (16) ◽  
pp. 4394 ◽  
Author(s):  
Chinchu Cherian ◽  
Sumi Siddiqua
Keyword(s):  
Fly Ash ◽  
Paper Industry ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Biomass Combustion ◽  
Pulp And Paper Mill ◽  
Current State ◽  
Pulp And Paper Industries ◽  
Combustion Processes ◽  
Efficient Mechanisms

The continual growth of pulp and paper industry has led to the generation of tremendous volumes of fly ash as byproducts of biomass combustion processes. Commonly, a major part of it is landfilled; however, updated environmental regulations have tended to restrict the landfilling of fly ash due to rising disposal costs and the scarcity of suitable land. The pulp and paper industries are therefore urgently seeking energy-efficient mechanisms and management for the beneficial use of fly ash in an ecological and economical manner. This paper offers a comprehensive review of existing knowledge on the major physicochemical and toxicological properties of pulp and paper mill fly ash to assess its suitability for various bound and unbound applications. The current state of various methods used for the valorization of pulp and paper mill fly ash into more sustainable geomaterials is briefly discussed. This paper also presents promising and innovative applications for pulp and paper mill fly ash, with particular reference to agriculture and forestry, the construction and geotechnical industries, and the immobilization of contaminants. It was identified from a literature review that modified pulp and paper mill fly ash can be environmentally and economically advantageous over commercial coal-based fly ash in various sustainable applications.

scholarly journals ANALISA UNSUR HARA MIKRO DARI FLY ASH LIMBAH INDUSTRI PULP DAN KERTAS

2021 ◽  
Vol 6 (1) ◽  
pp. 13-18
Author(s):  
Maria Peratenta Sembiring ◽  
Chairul Chairul ◽  
Zulfansyah Zulfansyah
Keyword(s):  
Fly Ash ◽  
Paper Industry ◽  
Combustion Process ◽  
Paper Mill ◽  
Carbon Chain ◽  
Pulp And Paper ◽  
Biomass Combustion ◽  
Elemental Content ◽  
Pulp And Paper Mill ◽  
Peat Soils

The pulp and paper industry continues to grow and produces large amounts of fly ash waste from the biomass combustion process. Alternative waste management besides landfills needs to be developed so that the use of fly ash can be ecologically and economically acceptable, such as for land applications in industrial plantations, especially on peat soils. This paper presents the results of the analysis of micro nutrients from fly ash from pulp and paper mill waste that can be used for agriculture and forestry. The elemental content of boron (B) and zinc (Zn) can be detected in fly ash samples both by lauryl amine extraction and stearyl amine extraction, where the optimum amount is obtained using 15 gram of fatty amine and n-hexane solvent with a processing time of 4 hours. Stearyl amine gives a higher yield than lauryl amine because it has a longer saturated carbon chain.  

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
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