In-situ generation of effective coagulant to treat textile bio-refractory wastewater: Optimization through response surface methodology

Comparison of homogeneous and heterogeneous electrochemical advanced oxidation processes for treatment of textile industry wastewater

“…Effluents from textile and tannery industry contain large amounts of dyes [1][2][3]. The discharge of such effluents in the environment presents several critical drawbacks, including the impact on the color of water bodies and critical effects related to the acute and long-term toxicity of some dyes [4].…”

Modelling COD Removal from Slaughterhouse Wastewater by Electrocoagulation Using Response Surface Methodology

“…Among the physico-chemical methods, coagulation-flocculation is limited by a high use of chemical reagents, which results in a high treatment cost. Finally, the successful application of electrochemical methods such as electroflotation, electrooxidation and electrocoagulation has been observed in the treatment of slaughterhouse wastewater [6].…”

“…Moreover, during electrocoagulation, many chemicals (complexation) and physical (electro-flotation, electrostatic attraction) reactions occur simultaneously [8]. Under these conditions, the modelling of electrocoagulation by the classical method may be biased [6]. Indeed, the classical method consists of fixing one operating parameter and varying the others.…”

Electrochemical treatment of highly coloured textile wastewater: Optimization through experimental design

“…Worse, the discharge of wastewater from different industries (food processing, pharmaceuticals, oil, textiles, etc.) without adequate treatment in receiving environments contribute to the degradation of aquatic fauna and flora (reduction of biodiversity) [2] . The self-purifying capacities of rivers, which are largely exceeded, added to visible effects of climate change, make the issue of wastewater treatment more than ever a central concern for political and scientific stakeholders.…”

“…These criteria are abrasion resistance, photolytic stability of the colours, resistance to chemical oxidation (detergents) and microbial attack, solubility in dye baths and good affinity with textile fibres (wool, nylon, polyester, cotton, silk, cellulose, etc.). These characteristics not only increase the persistence of the dyes in the receiving environments but also make them reluctant to biodegrade (bio-recalcitrants) [2] . Highly coloured discharges of textile effluents therefore constitute a serious environmental and health threat due to the high risks they pose to the ecosystem (inhibition of photosynthetic activity, carcinogenicity, toxicity to microorganisms) [9,10] .…”