Leakage of chemicals from two grouting agents used in tunnel construction in Norway: monitoring results from the tunnel Romeriksporten

Article Abstract:

Researchers from Oslo, Norway investigated the leakage pattern and amounts of substances released from chemical grouting agents used to reduce water leakages during the construction of the Romiksportern tunnel in Norway.

Tunnels Construction, Bridge and Tunnel Construction, Bridge, tunnel, & elevated highway, Grouts, Research, Construction industry, Tunnel construction, Grout (Mortar)

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Siting of paper mills: is a pristine environment an industrial resource?

Article Abstract:

Norwegian researchers examined the resource use, environmental effects, and emissions of eight paper mills in Norway. The study was conducted to evaluate the criteria in situating industrial plants that would do the least damage to the environment.

Paper mills

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Decomposition of beta-alaninediacetic acid and diethylenetriamine-pentaacetic acid by hydrogen peroxide in alkaline conditions

Article Abstract:

The study of the chemical decomposition of beta-alaninediacetic acid (ADA) and diethylenetriaminepentaacetic acid (DTPA) indicates that ADA is more degradable by chemical oxidation than conventionally applied DTPA in alkaline hydrogen peroxide bleaching environments, such as used in the pulp and paper industry.

Finland, Paper Chemicals, Wood pulp industry, Pulp industry, Diethylenetriaminepentaacetic acid

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