Construction materials as a waste management solution for cellulose sludge

Journal Article · Tue Feb 15 00:00:00 EST 2011 · Waste Management

DOI:https://doi.org/10.1016/j.wasman.2010.09.017· OSTI ID:21550342

Modolo, R ^[1]; Ferreira, V M ^[1]; Machado, L M ^[2]; Rodrigues, M; Coelho, I ^[3]

---

1. University of Aveiro, Civil Engineering Department/CICECO, 3810-193 Aveiro (Portugal)
2. RAIZ - Forest and Paper Research Institute, Portucel-Soporcel, Eixo (Portugal)
3. CIMIANTO - Sociedade Tecnica Hidraulica, S.A., Alhandra (Portugal)

Sustainable waste management system for effluents treatment sludge has been a pressing issue for pulp and paper sector. Recycling is always recommended in terms of environmental sustainability. Following an approach of waste valorisation, this work aims to demonstrate the technical viability of producing fiber-cement roof sheets incorporating cellulose primary sludge generated on paper and pulp mills. From the results obtained with preliminary studies it was possible to verify the possibility of producing fiber-cement sheets by replacing 25% of the conventional used virgin long fiber by primary effluent treatment cellulose sludge. This amount of incorporation was tested on an industrial scale. Environmental parameters related to water and waste, as well as tests for checking the quality of the final product was performed. These control parameters involved total solids in suspension, dissolved salts, chlorides, sulphates, COD, metals content. In the product, parameters like moisture, density and strength were controlled. The results showed that it is possible to replace the virgin long fibers pulp by primary sludge without impacts in final product characteristics and on the environment. This work ensures the elimination of significant waste amounts, which are nowadays sent to landfill, as well as reduces costs associated with the standard raw materials use in the fiber-cement industrial sector.

• OSTI ID: 21550342
• Journal Information: Waste Management, Vol. 31, Issue 2; Other Information: DOI: 10.1016/j.wasman.2010.09.017; PII: S0956-053X(10)00494-0; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0956-053X
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
BUILDING MATERIALS
CELLULOSE
CEMENTS
CHLORIDES
COST
DENSITY
ENVIRONMENTAL POLICY
MOISTURE
PRESSING
RAW MATERIALS
RECYCLING
SALTS
SANITARY LANDFILLS
SLUDGES
SLURRIES
SULFATES
WASTE MANAGEMENT
WATER
CARBOHYDRATES
CHLORINE COMPOUNDS
DISPERSIONS
FABRICATION
GOVERNMENT POLICIES
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
MANAGEMENT
MATERIALS
MATERIALS WORKING
MIXTURES
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLYSACCHARIDES
SACCHARIDES
SULFUR COMPOUNDS
SUSPENSIONS
WASTE DISPOSAL