Ecotoxicological evaluation of the short term effects of fresh and stabilized textile sludges before application in forest soil restoration

• Published in: Environmental pollution (1987) Vol. 146; no. 2; pp. 463 - 469
• Main Authors: Rosa, Edson V.C., Giuradelli, Thayse M., Corrêa, Albertina X.R., Rörig, Leonardo R., Schwingel, Paulo R., Resgalla, Charrid, Radetski, Claudemir M.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.03.2007; Elsevier
• Subjects: activated sludge; acute toxicity; Agrochemicals; Algae; Animal, plant and microbial ecology; Animals; Annelida; Applied ecology; Biological and medical sciences; Biomass; Brassica - growth & development; Brassica oleracea var. capitata; Daphnia - drug effects; Daphnia magna; Daphniidae; earthworms; Ecosystem; ecotoxicology; Ecotoxicology, biological effects of pollution; Eisenia fetida; Environmental impact; Environmental Restoration and Remediation - methods; fish; forest soils; Fundamental and applied biological sciences. Psychology; General aspects; Industrial Waste - adverse effects; Microbial Sensitivity Tests - methods; Oligochaeta - physiology; Poecilia - physiology; Poecilia reticulata; provenance; remediation; Scenedesmus; Scenedesmus - growth & development; Scenedesmus subspicatus Chodat; seed germination; Soil - analysis; soil bacteria; soil pollution; Soil restoration; Solid waste reuse; Textile Industry; textile mill effluents; Textile sludge; toxicity testing; Toxicity tests; Toxicity Tests - methods; Trees; Vibrio fischeri; Waste Management - methods; Brazil; Toxicity tests; Textile sludge; Solid waste reuse; Soil restoration; Environmental impact; Short term; Textile; Ecotoxicology; Land reclamation; Forest soil; Toxicity test; Sewage sludge; Soil management; Waste management; Pollution; Upgrading; Environment impact; Waste reuse; Solid waste; Environment; Textile industry
• ISSN: 0269-7491; 1873-6424
• DOI: 10.1016/j.envpol.2006.07.005

The short term (eco)toxicity potential of fresh and stabilized textile sludges, as well as the short term (eco)toxicity of leachates obtained from both fresh and stabilized textile sludges, was evaluated by a battery of toxicity tests carried out with bacteria, algae, daphnids, fish, earthworms, and higher plants. The (eco)toxicological results showed that, after 120 d of stabilization, the experimental loading ratio of 25% sludge:75% soil (v/v) (equivalent to 64.4 ton/ha) did not significantly increase toxicity effects and increased significantly the biomass yield for earthworms and higher plants. The rank of biological sensitivity endpoints was: Algae ≈ Plant biomass > Plant germination ≈ Daphnids > Bacteria ≈ Fish > Annelids. The lack of short term toxicity effects and the stimulant effect observed with higher plants and earthworms are good indications of the fertilizer/conditioner potential of this industrial waste, which after stabilization can be used in the restoration of a non-productive forest soil. Short term ecotoxicity evaluation of textile sludge showed that stabilized sludge can be used in the restoration of a non-productive forest soil.