via Electro-biological Processes Industrial effluents with bio-toxic and/or bio-refractory chemical substances present a technical challenge to wastewater treatment Engineers. The reliable and cost-effective options for treating such type of wastewater are very limited. Traditional processes include " chemical oxidation (e.g. application of chemical reagents such as ozone, hydrogen peroxide), " membrane bio-reactor separation " physical adsorption (e.g. activated carbon adsorption), and " wet air oxidation under high pressure and at high temperature. But these technologies are very expensive and often unsatisfactory. As a result, W & X Environmental Ltd has developed an innovative and more cost-effective technique for treating the industrial wastewater that contains bio-toxic and/or bio-refractory chemical substances. This technique involves the application of electro-oxidation for pre-treating wastewater to disintegrate or crack down the molecular structure of bio-refractory organic chemicals, to reduce bio-toxicity, and thus to enhance their bio-degradability. The electro-oxidation is followed by biological treatment. The whole process is referred to as electro-biological process. The electro-biological process has an advantage (over the traditional technologies) of " low operating/running costs " high treatment efficiency " no need to add any chemical substances " requirement for less space occupation
Treatment of Industrial Organic Wastewater |