Electrolytic Treatment of an Industrial Wastewater from a Hosiery Plant

Abstract

Textile plant wastewater being treated in a facultative pond system had too high of a solids concentration to be reused in the dying and rinsing processes. Electrocoagulation was evaluated to further treat the pond effluent to remove turbidity, which was caused by dyes and microorganisms. A range of amperages were tested for removal of turbidity and chemical oxygen demand (COD). Electrocoagulation lowered the turbidity from 1400 NTU to below 50 NTU; and COD was lowered from 550 mg/L to approximately 250 mg/L, which was acceptable for reuse. In addition, a laboratory‐scale sedimentation study was conducted on the electrocoagulated pond effluent, which indicated that a settling time of 35 minutes would provide for 80% removal of suspended solids, which was acceptable for reuse of the water in plant processes.

Electrochemical removal of pollutants from agro-industry wastewaters

“…It is a known fact that Fe electrodes are cheaper than Al ones [18]. Likewise, while analyzing the advantages of BP over MP configuration, following points come to the fore: (a) a simple set-up, which facilitates easy maintenance during use and (b) at industrial scale, BP is preferred as only the end electrodes are connected to the electric power source with no connection between the inner (bipolar) electrodes [10,19].…”

Effect of Calcination Conditions on the Performance of Co-precipitation Catalyst

“…There are a lot of wastewaters discharged from printing and dyeing plants every day, and it is difficult to dispose the organic industrial wastewaters, because they are usually composed of high-concentration of refractory biochemical organic pollutants, ammonia nitrogen compounds, and suspended matters or other pollutants, which cause a serious pollution for the natural water [1]. At present, the main treatment methods of the complex and refractory wastewater are ozonation method [2], biological degradation method [3], and electrolysis method [4], however, the traditional biological or physical chemical purification methods are difficult to satisfy the requirements of the purification treatment technology and economy [5]. In order to treat the industrial wastewater more appropriately, it is necessary to seek a treatment method with economic rationality, harmless, reduction and recycling.…”

Natural Treatment of Woolen Processing Industry Wastewater

“…In the literature up to now, in order to determine treatment processes and methods, conventional treatment processes such as coagulation/flocculation process [3], chemical/physical oxidation [4], activated sludge [5,6] and adsorption [7] and advanced treatment methods such as advanced oxidation [8], membrane process [9], Fenton process [10], electrochemical oxidation [11], electrolytic treatment [12] and reverse osmosis [13] have been applied.…”