Glass is characterized by 100% recyclable material, both for the original purpose, but also by the processing and transformation of use. But if not recovered, not only increase the load of burial work, can not be biodegradable; such as into the incinerator treatment, may also cause damage to the furnace. Therefore, the glass bottle recycling is particularly important.
Due to the strong barrier and high transparency, glass bottles are widely used as packaging containers for beer, beverage, condiment and cosmetics. The market for these glass bottles is a special market where old and new bottles coexist, with the majority of old bottles. Glass recycling, creating the following social benefits: energy conservation, reduce glass waste landfill, reduce the glass raw materials, mining, and reduce the glass smelting process emissions. At present, the glass bottle recycling methods include: prototype reuse, re-recycling, raw material recycling and transformation of four kinds of use.
Prototype multiplexing refers to the collection of discarded glass bottles, glass is still used as packaging containers, can be divided into two forms of packing and packaging use. Currently, the prototype reusable glass bottles mainly for low value, high volume packaging of goods, such as beer bottles, soda bottles, soy sauce bottles, vinegar bottles and some canning jars. As a high-value bottles of liquor, drugs (medical) hardly recycles bottles, cosmetics bottles. It can be said that packaging recovery rate and inversely proportional to the value of goods, the higher the value of the commodities lower its glass bottles recovery.
Prototype multiplexing eliminates the expense of quartz raw materials used to manufacture new bottles and avoids the generation of large volumes of waste gas, which is worth advocating. However, there is a large drawback is that the consumption of large amounts of water and energy, in the adoption of this method must be included in the cost of the cost of the budget.
Recycling refers to the various packaging glass bottles that will be received for the same or similar packaging bottle remanufacturing, which is essentially a glass bottle for the manufacture of raw materials to provide recycling of semi-finished products.
The specific operation is to recover the glass bottles, the first clean-up, cleaning, sorting by color and other pretreatment; then, melted down, and the original manufacturing process is the same, not elaborate here; Finally, the recycled material by blowing recycled System, adsorption, and so on a variety of different manufacturing methods of glass bottles.
Recycling Furnace regeneration is a recycling method for glass bottles that are difficult to reuse or can not be reused (such as broken glass bottles). This method consumes more energy than the prototype multiplexing method.
Raw material reuse
Recycling of raw materials refers to the use of various glass packaging waste that can not be reused for the manufacture of raw materials for various glass products. Here the glass products are not only glass packaging products, but also other building materials and household glass products such as waste products. The method than the first two recycling method of energy consumption.
The addition of broken glass in an appropriate amount contributes to the manufacture of the glass since the broken glass can be melted at a lower humidity compared to other raw materials. So the recovery of glass bottles need less heat, and furnace wear can be reduced. The test showed that the glass containers produced with recycled glass had the same transparency and container strength as the glass containers produced with the new raw materials, and that the recovered secondary materials could save 38% of the energy compared to the raw materials used to produce glass products, Reducing air pollution by 50%, water pollution by 20% and waste by 90%. In addition, since the loss of the glass regenerating process is small, the above-mentioned process of recovery-regeneration-use can be repeated. Can be seen, its economic and ecological benefits are very significant.
Transformation and utilization
Due to the rise of various packaging containers and container materials diversification, so the current demand for glass bottles declined. Therefore, it is necessary to develop glass waste in the bottle other than the application of the field, that is, the transformation of the use of recycled glass packaging direct processing, made of other useful materials.
Glass bottle production is one of the most energy-consuming packaging products, its recycling valuable.
Above the four recycling methods, the prototype reuse method is the most ideal, is an energy-efficient and economical recycling method. The transformation and utilization, it is an urgent need to develop recycling methods, we believe that in the future there will be more new, can bring value-added technology for transformation and utilization.