To realize the city are energy efficient, environmentally friendly, and efficient is a necessity of the present. The dependence is so high the energy resources of fossil-based discourse has become increasingly alarming, considering fossil fuel resources are the resources that it takes so long to recover and supply on earth is dwindling. Not only that, a byproduct of burning fossil fuels can cause air pollution will worsen the state of the atmosphere and the earth. For these things, why the application of so-called green technology has become so mean.
In everyday life, the use of oil as fuel are those that are prevalent everywhere in the country. Starting from the needs of the kitchen to cook, to the use of oil to run the generator producing electricity to power the fulfillment of an area. Not to mention the number of vehicles is increasing every day, helped increase the percentage of human dependence decade the energy from oil. Though it is known that, every burning oil for energy needs, will be generated if the CO2 compounds accumulated in amounts sufficient concentrations to cause inhibition of heat reflected by the earth to be released back into space. The gases that cause the greenhouse effect of CO2 is not only alone, but there are contributions from other gases such as methane, N2O, SF6, HFCs (Hydroflourocarbon) and PFCs (Perflourocarbon). Gases is what will hinder infra red rays, reflected by the earth rather than a manifestation of heat release, to be released from the atmosphere, so the heat will be trapped in the earth and causes the earth to get hot. Innovation around sustainable energy and resource produkivitas is our way to get out of this problem. (Friedman, 2008)
So many technologies that have been found, leading to environmentally friendly technologies, referred to Green Technology. Except for its application is limited pengapliksian separately. Here I offer an idea to develop a system where the application of several technologies that are environmentally friendly thing to do is terintegralisasi. With pengintegralisasian technique, expected benefits of each technology is applied to more optimized, and produce the maximum benefit for the good of the earth.
Developing a small area, where some of the environmentally friendly technology is applied there is terintegralisasi. I chose an area on the outskirts of the city, as the imaginary village that will be a pilot area for the construction of an area called “Green Tech Town”. The application of technology in this area will be done in a simple, but chosen by the technology that fits the needs of the village. This imaginary village, because it was on the outskirts of a dense area of transportation, so the concentration of air pollution in the region is high. In this area also has resources such as paddy fields and rivers which is used as a source of irrigation rice population.
In the village area will be built 3 main ideas zones. That is the green zone, the zone of energy, and hydro zone. In the Green Zone will be two important events, the planting of fruit trees, and composting activities. While the energy zone will be built a biogas reactor, and the zone hydro, micro hydro facilities will be created.
Green zone, is a zone where there is a variety of activities together in the utilization of land to be used as a green area. Existing land will be used as a nature park for the villagers. Where in the garden area will be planted with fruit trees. Selected fruit trees because the trees like these have the power to double. Besides can absorb CO2 from the air, and can provide a fresh atmosphere region, the fruit produced will also be the main attraction for the villagers to keep treating it with hopes to see grow up and bear fruit. There have been many tree planting activities carried out in various places, but the planting of shade trees usual, which only has indirect benefits, ie as a means of greening and shade, felt has a smaller probability to be treated by people, rather than the fruit trees immediate results that can be enjoyed by the residents. In this zone also will be training for the children with activities that bring them to nature. The training was held to be a matter of planting, tending, and practice recognize the plant. In addition, in the green zone will also be held composting activities. Composting activities have been selected for the presence of the composting process of nitrification reaction will occur, which will minimize N2O gas in the air which is one type of gas that can cause the greenhouse effect. In addition, the accumulation of waste can release methane gas that is harmful to the health of Earth’s atmosphere, this energy should be utilized into alternative energy sources.
Composting is a method that will be introduced vermi composting, where composting is done by using agents worm as a tool to generate a faster composting. In addition to faster, with this method there will be some additional benefits that can be felt, which is the amount of mineral produced richer, because the composting process by the method of vermi composting litter is litter pass into the digestive system where the reaction in the digestive worm worms will process and degeneration organic waste is more optimal. Besides the added benefit that can be felt is, the worm biomass which is 70% of the vermi composting and can be a business opportunity for the residents. Organic fertilizer produced can also be used for fertilizing the fields, they have. The use of organic fertilizer is widely known to provide better agricultural yield, while maintaining soil fertility, rather than synthetic fertilizers when used constantly to make poor widened and the dry land.
The next zone is the zone of energy. In this zone will be built several biogas installations which will deal with septic tanks from individual houses. Biogas is a technique that can convert waste into methane gas, which is methane gas can be used as an environmentally friendly alternative energy. The principle of the performance of the biogas is to hold the dirt in a reactor. In the reactor the reaction is then fermented by bacteria in the consortium, namely the presence of various types of bacteria are active and working with mutual benefit to each other. The bacteria involved in the process in the biogas reactor there is a group of bacteria acidofilik to class mekanofilik bacteria, which will deliver results in the form of methane gas. This methane will then be streamed using the pipes into homes to be used as a substitute for kerosene for cooking, in addition to the advantages that can be obtained by residents is indirect villagers became self-sufficient in energy, although on a small scale. With the construction of biogas reactor is expected to meet the energy needs for everyday cooking can be met, and it can reduce the slight dependence on the use of petroleum sourced fuels. In addition, the remainder of the reaction is going out to the outlet in the form of organic liquids, as has been experienced by a biological reaction to these bacteria. This liquid can be used as an organic liquid fertilizer. In the developed countries of Europe, and China, this alternative has been developed, and has a high prospective. With the utilization of this kind, is believed to minimize the free methane gas produced from the fermentation of dirt accumulation. As has been reviewed previously, methane gas discharged into the air, if buried in excess in the atmosphere, can cause obstruction of the heat to be released from the earth.
The latter, hydro zone. In this hydro zone is exploited streams that can be utilized as a producer of electrical energy. The technology is called a micro-hydro, which built a small generator using water current flow and then transformed into a power source. In order to maintain this activity, residents must keep the stream is not reduced debits, so that people will realize not to throw garbage into the river, and prefer to cultivate with composting techniques.
Descriptions of the three zones in mind, it can be a path to integrate the notion of mutually each other. For example, of the energy obtained is by using biogas, the gas produced can be used to make fruit crisps. Fruits are used as chips can be taken from the fruit trees planted in the green zone. In the green zone contained waste composting process, which can be used as organic fertilizer, besides that, to minimize residents to dispose of waste into the river. The river’s flow is good and quite heavy because there is no junk in the way, will produce enough electricity to illuminate the lights of the small village roads. and sufficient irrigation water to the paddy fields and orchards were cared for by the residents.