The presence of machine tools and technology for the manufacture of organic fertilizer are expected to participate overcome the problem of garbage and waste in urban areas. Known, the garbage has contributed greatly to the issue of poor sanitation and public health degrees decrease with the increase in waste generated population. If the year 2000 reached 1 kg of garbage per person per day, is now expected, the number increased to 2, 1 kg per person per day in 2020. Ministry of Environment Republic of Indonesia, 1995, recorded an average waste production per person of Indonesian society, which is 800 grams per day. That is, with 220 million population, estimated to total national waste accumulation reached 176 000 tons per day.
In the meantime, if calculated on a rough, waste produced, for example, in the city of Jakarta alone, every day at 8 million pounds. The amount obtained by multiplying the number of people living in Jakarta (8 million inhabitants) and the amount of garbage produced each day (1 kg / person / day).
If every 1 ton of solid waste produces 50 kilograms of methane gas (CH4), can know the amount of waste contribution to global warming amounted to 8800 tons of CH4 per day. Although higher concentrations of CO2, but scientists predict the strength of CH4 has the strength 20 times greater than CO2. In addition, it turns out rubbish also be one factor increasing the amount of greenhouse gas emissions in the atmosphere, in addition to other human activities related to energy, forestry, agriculture and animal husbandry.