Impact of soil types and petroleum effluents on the earthworm, Eudrilus eugeniae

Earthworm, Eudrilus eugeniae, exposed to different concentrations of dump-site soil and petroleum effluents exhibited different morbidity and mortality responses. Lake sediments caused varied fluctuations in weight over a 20 day exposure period. Colour changes and mortality up to 15% were observed in earthworms cultured in 100% lake sediment, while weight loss, coiling and sluggish movement were observed in 50% lake water. The effects of 100% dump-site soils were more pronounced as 40% death, swelling, body lesions, stiffening, coiling and low reproduction were recorded. Earthworms were useful as an organism in testing the toxicity of dump-site soils and effluent from a petroleum industry. Dump-site soils and soils polluted with petroleum effluent reduced populations of earthworms and this could subsequently affect other components of the ecosystems associated with earthworm activities.     

Methanolysis of PET Waste Using Heterogeneous Catalyst of Bio-waste Origin

Journal of Polymers and the Environment - Decomposition of used poly(ethylene terephthalate) (PET) bottles was accomplished by methanolytic degradation using bamboo leaf ash (BLA) as a green and...