Pictures of 2019 non-recyclable trash cans. A collection of pictures of 2019 non-recyclable trash cans.
What are the non-recyclable wastes?
1, kitchen waste: Kitchen waste includes peels, vegetable leaves, leftovers, post-meal garbage, etc.
2. Toxic and hazardous waste: Toxic and hazardous waste includes paints and pigments, waste batteries, waste lamps, etc. If these items are discarded casually, they will seriously affect the environment and cause danger. We should promptly throw such garbage into toxic and hazardous trash cans.
3. Other garbage: Other garbage includes highly water-soluble toilet paper, napkins, etc.
In the world, toxic and hazardous wastes, such as used batteries and mercury-containing sludge compositions, are mainly treated by deep burial, incineration, packaging and stacking, but these methods will produce secondary pollution and the cost is high. In reality, hazardous waste is just a “misplaced resource”: much of it can be reused. (For example, if used batteries are properly processed, zinc, manganese dioxide and other substances can be recovered from them).
Why toxic and hazardous waste cannot be recycled
Recyclables can be remade, that is, these unwanted wastes can be turned into commodities or items and then sold, such as iron, aluminum, copper, plastic, etc. Non-recyclable means that these wastes cannot be recycled, such as glass, etc... Toxic ones are those that will cause certain harm to the human body, such as batteries. If the battery melts in water or soil and is absorbed by fish or plants, it will then be indirectly absorbed by fish or plants. If people absorb it, it will cause harm to the human body. Therefore, we should still have toxic and hazardous waste that cannot be recycled.
How to deal with non-recyclable garbage
1. Incineration treatment
Garbage incineration is an older and traditional method of treating garbage. Since garbage is treated by incineration, the reduction effect is significant, it saves land, it can also eliminate various pathogens and convert toxic and harmful substances into harmless substances. Therefore, Waste incineration has become one of the main methods of urban waste disposal. Modern garbage incinerators are equipped with good smoke and dust purification devices to reduce atmospheric pollution. Garbage incineration is a process in which through appropriate thermal decomposition, combustion, melting and other reactions, the garbage undergoes oxidation at high temperatures to reduce its volume and become residue or molten solid matter.
2. Landfill treatment
Landfilling is an effective way to consume large amounts of urban domestic waste, and it is also the final disposal method for all waste treatment process residues. At present, direct landfilling is commonly used in my country. The so-called direct landfill method is to fill the garbage into a prepared pit, cover it and compact it, so that it can undergo biological, physical and chemical changes, decompose organic matter, and achieve the purpose of reduction and harmlessness.
3. Compost treatment
Stack domestic waste into piles, keep it at 70°C for storage and fermentation, and use the decomposition ability of microorganisms in the waste to decompose organic matter into inorganic nutrients. After composting, domestic waste becomes hygienic and odorless humus. It not only solves the problem of garbage outlet, but also achieves the purpose of recycling. However, the amount of domestic waste compost is large and the nutrient content is low. Long-term use can easily cause soil compaction and groundwater quality deterioration. Therefore, the scale of composting is not easy to be too large.