In the paper the fundamentals on textiles for treatment of various wastewaters were described, i.e. the types and the properties of fibre-forming polymers for treatment odpadnih vod. The selection of appropriate material depends on many factors including resistance to microbial degradation, mechanical strength, surface characteristics, the cost of the material, and the type of wastewater. Additionally, biofilters using textiles as packing material were presented as well as the removal mechanisms in such systems and biofilm growth in textiles.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 14554134The experiment demonstrated a biofilter packed with zeolitic tuff, which imitating the self-cleaning ability of natural wetland ecosystems by establishing optimal physical, chemical and biological conditions. The system appreciably reduced selected pollution parameters in three different, synthetically-prepared textile wastewaters in accordance with Slovenian and EU legislation; colour by up to 80%, TOC by up to 75%, and decreased the pH from 9.6 to 7.5, depending on dye’ chemical structure, organic load, retention time, trial duration, flow velocity, etc.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 14468630In research work, the possibility of using various commercially available textiles for salt reduction during wastewater treatment was investigated. From the results obtained by samples’ surface analyses, field parameters measurements (microscopic method) as well as from adsorption and filtration experiments using three salts in four concentrations, it could be concluded that better degree of adsorption and filtration was attained using both nonwoven textiles (PP and bicomponent PP/PE). The poorest results (during both, adsorption and filtration experiments) were achieved using sodium sulphate. Fabric construction had a superior impact on adsorption/ filtration ability, preferably, total void area (15.74% for PP, 15.36% for PP/PE, 0.08% for PA and 0.98% for PES) and number of voids per mm (440.4 for PP, 413.4 for PP/PE, 11.2 for PA and 10.5 for PES).
B.03 Paper at an international scientific conference
COBISS.SI-ID: 15080470The study includes small-scale column experiments conducted in continuous flow operation in order to asses the efficiency of two woven (PA and PES) and two non-woven (PP and bicomponent PP/PE) textiles as biofilm attachment filters to remove colour, salt and organic pollutants from two synthetically prepared (acidic or alkaline) dye-rich textile wastewaters. It was found that both non-woven compact textiles (either made from PP or bicomponent PP/PE) with complex structures and high total void area were more suitable for this kind of application in comparison to the treatment efficiency of column packed with sand/woven fabrics; colour reduction was up to 52% (alkaline dye-rich wastewaters) and up to 71% (acidic dye-rich wastewaters).
B.03 Paper at an international scientific conference
COBISS.SI-ID: 15134742