ASIAN JOURNAL OF CHEMISTRY ASIAN JOURNAL OF CHEMISTRY https://doi.org/10.14233/ajchem.2017.20715 INTRODUCTION An increase in the demand of textile products propor- tionally increases wastewater which making it one of the main sources of water pollution in worldwide. Various type of textile dyes, auxiliary products, dispersing agents, humectant agents used in textile processing at several stages. Large amount of wastewater is produced in dyeing step in the finishing process is a major environmental problem in the textile industry [1]. Wet processing includes preparation, dyeing and finishing that produces high consumption of water chemicals and dyes. Textile wastewater contains high concentrations of total suspended solids, colour, biological and chemical oxygen demand. Commonly, dyeing and rinsing processes generate about 90-130 m 3 waste- water per ton of product [2]. Wastewater produced in textile processing usually containing complex structure of different persistent pollutants, such as dyes, solvents, fats, surfactants, waxes, salts, oils, soaps and metals and a major risk for the environment and ecosystems when discharged improperly in water bodies [3]. Literature revealed that many studies were done on coagulation/flocculation process [4,5] for treatment of textile wastewater. Moreover, other treatment methods like adsorption [6,7], membranes [8-10], electrocoagulation [11,12], advanced oxidation process (AOP) [13,14] and biological processes [15,16] have been used to remove textile dyes reported in literature. Treatment of Textile Wastewater and Sludge through Advanced Oxidation Process FARAH DEEBA 1 , NAEEM ABBAS 1,* , MUHAMMAD TAHIR BUTT 1 , RAUF AHMAD KHAN 1 and MUHAMMAD MUNEEB AHSAN 2 1 Centre for Environmental Protection Studies, PCSIR, Laboratories Complex, Ferozepur Road Lahore-54600, Pakistan 2 COMSAT Institutes of Information Technology, Lahore-54000, Pakistan *Corresponding author: E-mail: naeemchemist@gmail.com Received: 14 April 2017; Accepted: 27 July 2017; Published online: 30 October 2017; AJC-18600 In this study, textile wastewater has been characterized and was found to contain very high colour and total organic carbon (TOC). Fenton, Electro-Photo Fenton reagents along with combination of natural coagulants were examined for the degradation of textile dye at various dose rate and pH. The results showed that Fenton reagent at a dose rate of 0.2 mL FeSO4 (0.25 N), 5 mL H2O2 and 0.5 mL H2SO4 gave best reduction of colour 87 % and TOC 56 %. Electrophoto Fenton was found to be effective for treatment of textile wastewater but expensive as it required energy. Sludge obtained after treatment was made metal free by acid digestion and then converted into compost. Best compost was prepared from metal free sludge in combination with dry leaves and sewerage sludge containing organic matter 91.27 %, cation exchange capacity 80 meq/100 g and C/N ratio18: 17. Keywords: Textile wastewater, Total organic carbon, Colour, Sludge, Compost. Asian Journal of Chemistry; Vol. 29, No. 12 (2017), 2611-2614 It is significant that use of advanced oxidation process (AOP) can degrade complex organic compounds that are difficult to remove by conventional methods due to formation of highly oxidizing species such as hydroxyl radicals. Huang et al. [17] presented that for treatment of industrial effluents, advanced oxidation processes have become most promising technology near future. Fenton and photo-Fenton reactions have been the most widely used techniques among all AOPs [18]. The production of highly oxidizing species is enhanced by applying ultraviolet light on Fenton reactants, supporting sustained chemical reactions as well as an increase in efficiency compared to other AOP-based methods for the degradation of different recalcitrant pollutants [19]. However, for improvement of wastewater treatment and to minimize cost different combinations of chemicals can be applies at once [20]. Sludge obtained from wastewater treatment plant would need proper treatment and reuse to protect environment. Usually, less toxic sludge can be converted into compost and use as bio- fertilizer. Composting has been known as one of the most cost effective and environmentally sound alternate for organic wastes recycling [21]. In current study, a treatment system based on advance oxid- ation process that includes Fenton process, Fenton reagents along with natural coagulants and Electrophoto Fenton process were applied to degrade total organic matter and removal of colour from real textile wastewater. Furthermore, the sludge obtained