Effective sewage treatment with direct current ionization technology

Abstract

Sewage treatment is the process of removing contaminants from wastewater and household sewage, runoff effluents from domestic, commercial and institutional units. Various waste water treatment technologies have been compared for the Kullu, Manali area where there are about 50 Sewage Treatment Plan (STPs) installed and operated by various hotels, industries and 7 common STPs operated by the Irrigation and Public Health (IPH) Department for treatment of the sewage waste generated from the household and hotels in the three Municipal areas. The sewage load to the treatment plant installed by individual hotels is not available at a constant rate from the hotel industries. This variation in quantity and quality of the sewage generation during the tourist and non-tourist season disturb the whole mechanism based upon the biological methods. Thus there is a need to test a new technology to overcome these difficulties and which is easy to handle and operate and economical to run. Detailed study in association with Himachal Pradesh IPH Department in Manali Campus on new technology called the “Electro-Coagulation Technique” for treatment of the sewage waste was conducted by installing a demonstration study plant with a capacity of 60 Kilo-litre capacity per day (60 KLD). It has been concluded that this technology coagulates the suspended solids and settles into sludge, oxidizes organics and reduces soluble COD, and destroys pathogens.