Chemical fractionation method for characterization of biomass-based bottom and fly ash fractions from large-sized power plant of an integrated pulp and paper mill complex

2014 ◽  
Vol 24 (2) ◽  
pp. 588-596 ◽  
Author(s):  
Risto PÖYKIÖ ◽  
Hannu NURMESNIEMI ◽  
Olli DAHL ◽  
Mikko MÄKELÄ
Keyword(s):  
Fly Ash ◽  
Power Plant ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Chemical Fractionation ◽  
Pulp And Paper Mill ◽  
Fractionation Method

scholarly journals Thermal characterization of hydrated eco-friendly clinkers produced from pulp and paper mill waste

Cerâmica ◽  
2018 ◽  
Vol 64 (371) ◽  
pp. 311-317 ◽  
Author(s):  
L. Simão ◽  
N. J. Lóh ◽  
D. Hotza ◽  
F. Raupp-Pereira ◽  
J. A. Labrincha ◽  
...  
Keyword(s):  
Thermal Characterization ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Industrial Wastes ◽  
Pulp And Paper Mill ◽  
Paper Mills ◽  
Bet Analysis ◽  
Alternative Materials ◽  
Clinker Production

Abstract Industrial wastes from pulp and paper mills are potentially useful materials to use as alternative materials in clinker production. In this study, eco-friendly clinkers were obtained using only waste as feedstock. Eco-friendly clinker with different C3S and C2S contents were produced and hydrated for 7 days at 40 °C, or for 28 and 90 days at room temperature. The potentialities of these waste and the products obtained were revealed through chemical (XRF), thermal (DTA/TG) and surface area (BET) analysis. For comparison, a common ordinary Portland cement (OPC) was tested. As expected, the hydration rate of formulations presenting higher C3S content was higher, generating higher amounts of Ca(OH)2. Furthermore, the amount of Portlandite formed was lower when compared to OPC.

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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