Electrocoagulation and electro fenton and their applications in the processing of lindi water from landfill waste in campus area of Diponegoro University

Abstract

Piles of garbage could an impact on reducing aesthethics, lowering the quality of groundwater and the health of the people who live around the landfill (TPA). The focus of research aims to reduce the content of organic pollutants dissolved in leachate at the Diponegoro University landfill (TPA). There are 2 methods chosen, namely the electrocoagulation method and the Fenton electro method. The electrodes used in these 2 methods are the same, namely aluminum and ferrous metals (as anode) and carbon (as cathodes). Our observations in the laboratory show that the dissolved organic matter in leachate at Diponegoro University’s final disposal site (TPA) (COD parameter) was 6.2 ppm, still far below the leachate content of TPA Jati barang 9.1 -16.2 ppm. The limit of the Government of the Republic of Indonesia in PP 82, 2001 (10 ppm). With the electrocoagulation method, when aluminum metal (as anode) was used, the amount of organic material that could be removed was 77.6%, while with ferrous metal (as anode) the amount of organic material that could be removed was smaller, namely 69.8%. Whereas with the Fenton electro method, when using aluminum metal (as anode), the amount of organic material that could be removed was 89.9%, while with ferrous metal (as anode) the amount of organic material that could be removed was smaller, namely 71.6%. The addition of inorganic salts (100 ppm NaCl and 100 ppm Na2SO4) was able to increase the yield of organic matter removal between 2.1 - 5.1%.