MILO-GAS: OPTIMALISASI LIMBAH PADATAN DARI INSTALASI PENGOLAHAN AIR LIMBAH KAMPUNG CODE MENJADI BIOGAS

Abstract

Daerah Istimewa Yogyakarta (DIY) is one of the densest province in Indonesia which population growing rate is 1.19% per year. This implies complicated problems such as sanitation. Although Water Closet (WC) access is available, however sewage access is still below standards. Most of the sewage was discharge directly to environment, until communal sewage treatment system (IPAL) was established. IPAL has dual function, first is to diminish domestic waste and also energy sources such as biogas. Utilization of human waste as biogas is integrated solution between energy and environment. This breakthrough has been established since 2007 in Gondolayu Lor RW 11, Kelurahan Cokrodiningratan (Kampung Code). However, the utilization of biogas is not optimal and only lasted in short time because there were some problems. Observation results indicate that residents abandoned using biogas because of the stove is easily damaged by corrosion. Moreover, a very stinging smell making its use obstructed. Therefore, optimization is required which integrate environmental and society aspects. The recommended optimization is adding adsorbent in the form of zeolite that can absorb water vapour, so that can diminish corrosion effects. From the calculation, it was known that it takes 60 kg zeolite for three years in 4 m absorber tower which the total cost is Rp1,379,360.00 include zeolite. In addition to reduce unpleasant odours, adsorbent in the form of charcoal placed in the gas release in the IPAL and distributor pipes. By these efforts, it is expected that the interest of the residents towards reusing biogas will increase.