Introducing of Small Scale Waste to Energy Incineration Plantfor Hotel; Heritance Ahungalla in Ahungalla, Sri Lanka

Sammanfattning: The disposal of Solid Waste has become one of the major environmental issues in SriLanka. Solid waste is often cited as a key cause contributing to environmental degradation.Rapid industrialization and unplanned urbanization has made Asian cities a victim of unmanageablesolid waste. Most of Urban Cities of Sri Lanka, are facing the same problemand still no proper solution has been introduced by the governing parties other than opendumping, which is again generating a huge problem among people, who are living aroundthe area. Balaptiya, where is in down south of Sri Lanka, is one of the urban cities of SriLanka and their daily waste generation is around 5500 kg, which is collected by BalapitiyaLocal Authority and sent to the open dump site at Heenatiya. This city is very popular fortourism as it is in between very famous tourism cities of Bentota and Hikkaduwa. Therecan be seen so many hotels around the city. Among them, Hotel Heritance Ahungalla,which is one of the five star’s hotels in Sri Lanka, locates within Balapitiya Local Authority.Their waste generation is about 600 kg per day.This study is mainly focusing on introducing small scale solid waste incinerator for Municipalsolid waste collected within Balapitiya Local Authority and Hotel Heritance Ahungalle.Hotel Heritance Ahungalla locates down south of the country and is facilitating 152 standardrooms for their guests. The daily hot water requirement is 30 m3, which is currentlysupplying by an oil fired boiler, which monthly running cost is exceeding LKR 1.2 million,for the room usage as well as cloths drying purposes. The waste heat generated by the proposedincinerator is planned to be used to generate saturated steam, while keeping the oilfired boiler in standby condition. Ultimately, this will save the money spending for the fuelfor the oil fired boiler.In this study, the capacity of incineration plant was optimized to 335kg/hr, which is containingof about 837.5 kW of gross energy, by calculating of available solid waste amountfrom the hotel as well as local authority and adding percentage increment forecasting of future.Accordingly, the size of the furnace was calculated. Finally, burning of this solidwaste will help to produce 3.7 tons/hr of saturated steam, which will meet the hotel dailysteam requirement.