Key points are not available for this paper at this time.
Background and Objective: Water retting is the most widely process used to produce flax fibers and linseed oil. The manufacturing process in this industry consumes a huge amount of fresh water. Wastewater produced is characterized by brownish to yellow color, bad odor and high organic contents due to lignin, cellulose and hemicelluloses. In this study retting wastewater (350 m 3 /d) was discharged directly without treatment to a nearby agricultural drain and consequently aggravates the problem of pollution. To avoid the high contamination of the drainage water and to overcome the high consumption of water in this industry, remediation and reuse of treated wastewater using Activated Sludge Process (ASP) followed by adsorption on Activated Carbon (AC) were carried out. Materials and Methods: The ASP followed by sedimentation and then adsorption on AC were investigated. Determination of the optimum conditions for both ASP (time) and AC (time and dose) were determined. Also, kinetics and adsorption isotherm were investigated. Results: Operation of the ASP at MLSS of 3-4 g LG 1 and optimum detention time of 6 h produced a good quality effluent.
Fawzy et al. (Fri,) studied this question.