General solid waste, also known as general solid waste, includes domestic garbage, general industrial solid waste, etc. It is solid waste other than hazardous waste and medical waste. Specifically, the following common forms are all general solid waste:
Municipal garbage, domestic sewage sludge, construction waste, waste wood, landscaping branches and leaves, industrial sludge, glass, waste steel, plastics, industrial waste, and so on.
How is general solid waste handled? Different solid waste disposal standards are different. Here's a quick note on general solid waste disposal qualifications. According to the Solid Law, general solid waste disposal does not require a business license (except for electronic waste), waste units and waste disposal units in the treatment of general solid waste only need to meet the relevant environmental requirements and relevant national control standards, such as the "general industrial solid waste storage, disposal site pollution control standards" (GB18599-2001). Hazardous waste disposal is required to have a business license. It is illegal to dispose of hazardous wastes without a license or to have them disposed of by an unlicensed enterprise. Nowadays, environmental protection inspections are getting stricter and stricter, although the general solid waste disposal does not need relevant qualifications, but environmental compliance measures are essential.
Solid waste treatment refers to the physical, chemical, biological, physical and biochemical methods to convert solid waste into suitable for transportation, storage, utilization or disposal process. Solid waste treatment must follow the principle of minimization, resource utilization and harmlessness. Overall, general solid waste treatment common methods are: r> 1, sorting treatment. Solid waste pretreatment method a. It is to separate solid waste into different categories for storage, transportation, and final treatment. For example, common household waste classification and recycling. Through, sorting will be useful recovery, harmful fully separated for further processing. Generally according to the size, magnetic, specific gravity difference and other characteristics through manual, mechanical and other ways to sort general solid waste.
2, compaction treatment. Is to sort out the general solid waste compaction, the purpose is to facilitate transportation and do further processing. This is the general solid waste pretreatment link.
3, incineration. Incineration is a comprehensive treatment process of solid waste decomposition and deep oxidation at high temperatures, the benefits are a large number of harmful waste decomposition and become harmless substances. Due to the proportion of combustible solid waste is gradually increasing, the use of incineration methods to deal with solid waste, the use of its thermal energy has become a necessary development trend to this method of treatment, solid waste occupies a small area, the treatment of large quantities, in the protection of the environment, incineration plants are located in more than 100,000 people in large cities, and has an energy recovery system.
How to deal with general solid waste? Does it require qualification?
4, pyrolysis treatment. Pyrolysis is the organic matter in the anaerobic or anoxic conditions of high temperature (1000-1200) heating, so that the decomposition of gas, liquid, solid three types of products, compared with incineration, pyrolysis is a more promising method of treatment, and it is the most significant advantage of the infrastructure is less investment, and pyrolysis of the gas can be used as fuel.
5, curing treatment. General curing technology is through the waste to add curing substrate, so that hazardous solid waste fixed or included in the inert curing substrate in an environmentally friendly treatment process, after treatment of the curing product should have a good permeability, good mechanical and leaching resistance, resistance to wet and dry, resistance to freeze-thaw characteristics, curing treatment according to the curing substrate can be divided into different sinking curing, asphalt curing, glass curing and gelatin curing and so on.
6, crushing treatment. In order to enter the incinerator, landfill, composting system and other waste shape reduction, must be in advance of solid waste crushing treatment, after crushing waste, due to the elimination of large voids, not only the size of the size of the uniformity, but also the texture of the uniformity of the landfill in the process of compaction. Solid waste crushing methods are many, mainly impact crushing, shear crushing, extrusion crushing, friction crushing, etc. In addition, there are proprietary low-temperature crushing and mixed crushing.