The work concerns the evaluation of the possibility of using laser diffraction analyzer to determine changes in the distribution of sludge floc size in the presence of anionic surfactant. As a model of surfactant linear alkylbenzyne sulphonate (LAS) was used. The granulometric analysis showed that the pure activated sludge was composed of particles with a size of 0,001 to 2 mm. The largest and fastest changes in the distribution of sludge floc size after the addition of surfactant in concentration of 100 mg/dm3 were observed. The flocs with a diameter above 0.8 mm disappear and the average diameter over volume of particles decrease from 0.29 to 0.19 mm. The study showed that granulometric measurement may help to estimate an impact of chemical substances contained in wastewater on activated sludge.
Authors
- Alina Dereszewska,
- dr hab. inż. Agnieszka Tuszyńska link open in new tab ,
- Stanisław Cytawa
Additional information
- Category
- Publikacja w czasopiśmie
- Type
- artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
- Language
- angielski
- Publication year
- 2015
