Technology “Garbage and waste disposal” is waste Technology Management System. To reduce the impact on communities and the environment And it should start from having an efficient waste collection system to reduce energy consumption. And storing different types of waste at different times. Moreover, waste sorting is for convenience and efficiency in utilization. As well as being able to be recycled Waste Technology Management System. There are many technologies It will briefly state as follows.
1.1 waste sorting system
Sorting technology allows waste separation more efficiently and at higher volumes than manual labor, such as metal sorting machines. By using magnets to separate organic substances sorted by water. This makes it possible to separate glass bottles, plastic waste, metal parts which are then sent to the recycling unit.
1.2 recycling system
The plastics, glass, paper and metal that have been sorted from the waste are sent to a recycling plant for melting and forming into raw materials to re-manufacture the product. It reduces the use of resources and the amount of waste that must can dispose.
1.3 Toxic waste management system
Hazardous wastes or hazardous industrial waste such as flammable, corrosive substances, toxic substances can dispose of by biological methods, incineration, stabilization. Or landfill But in the future, the reduction or replacement of raw materials should be considered in order to reduce the amount of hazardous waste. Reusing Or the recovery of materials and energy from hazardous waste. Including the collection of valuables that are components of the garbage. These methods can greatly reduce the amount and danger of waste. For the transportation process, documents or tracking systems are required. In order to control the work procedure in the correct way It does not cause toxicity to operators and the environment.
1.4 Inoculation (RDF)
Using the collected solid waste for direct combustion Often causing difficulties in use Due to the uncertainty in the various elements that make up the garbage Which changes according to the community and seasonally Also, these solid waste has a low heat value. High content of ash and moisture. This liquor was a hassle for the incinerator and operator.
Organic waste can also use as compost for community agriculture. Due to the high content of various nutrients, reducing the use of chemicals and chemical fertilizers. Which may remain in land and water It also reduces the energy of indirect fertilizer transport. As it does not have to be transported from other sources And to reduce greenhouse gases instead of using chemical fertilizers.
In the future, smart cities focus on using technology to reduce the amount of waste they have to landfill. But some cities with a large area Landfill is still a low investment method. Therefore, technology for the control and design of landfills has to develope to be effective and do not affect the environment. Both using a foundation material Close holes and the resulting gas and wastewater collection.
The advantage of landfill is that it is not complicated operation. Suitable for communities with a lot of space. The disadvantage is that there is a cost of transporting waste to landfills. And there is a risk of fire Due to the presence of methane gas as a result of landfill. It may also be a source of pathogens and carrier animals. If the operation is not sanitary.
Another method of disposal that is shorter and takes up less space is incineration. The developed combustion technology can control the heat and air pollution generated, making it suitable for cities with less space. Incineration waste must clearly classify to prevent toxic waste. The heat of the released air can recover as well.