濟南塑料袋:可降解塑料袋、可再生塑料袋和可回收塑料袋
來源:http:/// 日期:2021-07-21
可再生資源是指在自然界特定的時空條件下,能不斷繁殖、生長、再生以跟上消耗速度,保持或擴大其儲量,并能被人類重復利用的資源。森林、土壤、草原、濕地、太陽能、風能、水能、動物、植物、微生物和各種自然生物群落都是可再生資源。
Renewable resources refer to resources that can continuously reproduce, grow and regenerate to keep up with the consumption rate, maintain or expand their reserves, and can be reused by human beings under the specific space-time conditions of nature. Forests, soils, grasslands, wetlands, solar energy, wind energy, hydropower, animals, plants, microorganisms and various natural biological communities are renewable resources.
可降解塑料袋是由這種可再生資源生產(chǎn)的材料制成的塑料袋。通常,這種可降解塑料袋材料可以快速制造或生產(chǎn),或者通過生物和其他自然過程進行替換或補充,以跟上其使用速度。木材、紙板、紙張和紙漿是廣泛使用的可再生材料。只要采取有效的可持續(xù)林業(yè)管理,就可以實現(xiàn)木材的持續(xù)供應,支持人類社會的正常運轉(zhuǎn)?;牧纤芰洗侵傅厍蛏匣Y源有限的材料制成的塑料袋。石油、天然氣、煤炭、礦藏或有機化石礦床都是化石資源,短時間內(nèi)無法再生;生產(chǎn)材料,如玻璃、塑料、金屬等,從這些資源中加工出來的是化石基材料。
Degradable plastic bags are plastic bags made of materials produced from this renewable resource. Generally, this degradable plastic bag material can be quickly manufactured or produced, or replaced or supplemented by biological and other natural processes to keep up with its use speed. Wood, paperboard, paper and pulp are widely used renewable materials. As long as effective sustainable forestry management is adopted, the sustainable supply of wood can be realized and the normal operation of human society can be supported. Plastic bags made of fossil based materials refer to plastic bags made of materials with limited fossil resources on earth. Oil, natural gas, coal, mineral resources or organic fossil deposits are all fossil resources that cannot be regenerated in a short time; Production materials, such as glass, plastic, metal, etc., are fossil based materials processed from these resources.
可降解塑料袋,顧名思義是指由可回收材料制成的塑料袋,回收后可以循環(huán)使用。生活中常見的可回收材料有紙張、紙板、玻璃、塑料、金屬等。其中,紙和紙板兼顧了可再生材料和可回收材料的雙重特性。可回收材料在和方面發(fā)揮著重要作用。數(shù)據(jù)顯示,一噸廢紙可生產(chǎn)850公斤再生紙,節(jié)約木材3立方米;廢舊PET塑料瓶還可以回收加工成紗線,用作家具、汽車等行業(yè)的面料材料。
Degradable plastic bags, as the name suggests, refer to plastic bags made of recyclable materials, which can be recycled after recycling. Common recyclable materials in life include paper, cardboard, glass, plastic, metal, etc. Among them, paper and paperboard take into account the dual characteristics of renewable materials and recyclable materials. Recyclable materials play an important role in energy conservation and environmental protection. Data show that one ton of waste paper can produce 850 kg of recycled paper, saving 3 cubic meters of wood; Waste PET plastic bottles can also be recycled and processed into yarn, which can be used as fabric materials in furniture, automobile and other industries.
生物可降解塑料袋是指物質(zhì)可以通過生物方法完全分解為天然成分,歐盟標準對生物降解塑料袋的定義是:90%的生物降解塑料袋在細菌、真菌或其他簡單生物的協(xié)助下,能在6個月內(nèi)分解成二氧化碳、水和礦物質(zhì)。與生物降解性相比,可堆肥是更高的標準:通過控制濕度、溫度和氧化過程來提高生物降解的效率,要求材料分解成完全的成分,整個過程對環(huán)境無害。
Biodegradable plastic bags means that substances can be completely decomposed into natural components by biological methods. The definition of biodegradable plastic bags in EU standards is that 90% of biodegradable plastic bags can be decomposed into carbon dioxide, water and minerals within 6 months with the help of bacteria, fungi or other simple organisms. Compared with biodegradability, compostability is a higher standard: improve the efficiency of biodegradation by controlling humidity, temperature and oxidation process, requiring the material to be decomposed into completely non-toxic components, and the whole process is harmless to the environment.
所以,可降解塑料袋是可以生物降解的,但生物可降解塑料袋不一定是可堆肥的。包括傳統(tǒng)塑料袋在內(nèi)的大部分工業(yè)廢棄物,在自然條件下需要很長時間才能降解,有些甚需要上百年甚上千年,對環(huán)境造成很大危害。木材和紙是典型的可生物降解塑料袋材料。與傳統(tǒng)塑料袋相比,它們對環(huán)境的影響顯然更加友好。
Therefore, biodegradable plastic bags are biodegradable, but biodegradable plastic bags are not necessarily compostable. Most industrial wastes, including traditional plastic bags, take a long time to degrade under natural conditions, and some even take hundreds or even thousands of years, causing great harm to the environment. Wood and paper are typical biodegradable plastic bag materials. Compared with traditional plastic bags, they are obviously more friendly to the environment.
據(jù)不完全統(tǒng)計,我國每天有超過1000萬份外賣被送出,其中大量使用塑料包裝產(chǎn)品??紤]到傳統(tǒng)塑料袋的降解少需要400年,越來越多的消費者呼吁可再生和生物可降解塑料袋來取代傳統(tǒng)塑料袋。
According to incomplete statistics, more than 10million takeout products are sent out every day in China, of which plastic packaging products are widely used. Considering that the degradation of traditional plastic bags will take at least 400 years, more and more consumers call for renewable and biodegradable plastic bags to replace traditional plastic bags.
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