塑料的回收与再利用【英文】
合理分类处理循环利用英语
合理分类处理循环利用英语循环利用（Recycling）是指通过将废旧材料进行处理和加工，使其重新变成可用产品或原材料的过程。
在英语中，可以使用以下方式对循环利用进行分类处理：1. Recycling: 这是最常见的循环利用方式，指通过收集、分拣、处理和加工废旧材料，使其重新变成可用产品或原材料。
如：paper recycling（纸张回收）、plastic recycling（塑料回收）等。
2. Upcycling: 这是将废旧材料转化为比原始材料更有价值或更实用的产品的过程。
与传统的回收不同，Upcycling 将废物升级为高品质产品，减少了资源消耗。
如：upcycling old clothes into new fashion accessories（将旧衣服升级为时尚配饰）。
3. Composting: 这是将有机废料（如食物残渣、园艺废料等）进行堆肥处理，制成有机肥料的过程。
Composting可以使有机废料得到合理利用，同时减少垃圾填埋的需求。
如：composting kitchen scraps（厨余废料堆肥）。
4. Repurposing: 这是将废物或废旧物品进行重新加工、改造，赋予其新的用途或功能的过程。
Repurposing 不仅可以减少资源消耗，还可以创造出独特的产品。
如：repurposing wine bottles into decorative vases（将废弃的酒瓶改造成装饰花瓶）。
5. E-waste recycling: 这是专门处理废旧电子产品（如电脑、手机、电视等）的循环利用方式。
由于电子废物中含有很多重金属和有害物质，正确处理电子废物对环境和健康非常重要。
如：e-waste recycling center（电子废物回收中心）。
这些分类方式可以帮助人们更准确地描述和讨论循环利用的不同方面和方法。
Pep六年级英语Recycle1Unit3教案：回收与再利用
Pep六年级英语Recycle1Unit3教案：回收与再利用回收与再利用Recycling and reusing are important aspects of our daily lives. As we consume resources, it is crucial to understand how we can reduce waste and conserve resources. In Unit 3 of Pep six-grade English Recycle1, students learn aboutrecycling and reusing in the context of paper, plastic, and aluminum.The lesson starts with a brainstorming session, where students share what they know about recycling. The teacher then introduces three key concepts: Reduce, Reuse, and Recycle. These three concepts form the foundation of waste management, and students become familiar with their meanings and importance.The teacher then focuses on paper recycling, discussing the process of how paper is made and how it can be recycled. Students learn that paper can be recycled up to seven times, and each time it is recycled, the quality of the paper decreases. They also learn about the importance of separating paper from other types of waste to ensure proper recycling.The lesson then moves on to plastic recycling, where students learn about the different types of plastics and how they can be recycled. The teacher emphasizes that not all plastics can be recycled, and students learn about the importance of identifying and separating the different types of plastics.Aluminum recycling is also covered in the lesson, with the teacher discussing the process of how aluminum is made and how it can be recycled. Students learn about the energy savings achieved through aluminum recycling and are encouraged to recycle aluminum cans.Throughout the lesson, students are engaged through hands-on activities, such as sorting waste into different categories and creating posters about the importance of recycling. These activities help students to internalize the lesson content and reinforce the key concepts.The lesson concludes with a discussion about how recycling and reusing can help to conserve resources and reduce waste. Students are encouraged to think about how they can incorporate these concepts into their daily lives and make a positive impact on the environment.In conclusion, Pep six-grade English Recycle1 Unit 3 provides students with a comprehensive understanding of recycling and reusing, specifically in the context of paper, plastic, and aluminum. Through hands-on activities and engaging discussions, students are able to internalize the key concepts and are encouraged to apply them to their daily lives. By promoting responsible waste management, this lesson helps to create a more sustainable and eco-friendly future.。
废旧塑料的回收与利用
废旧塑料的回收与利用XXX XX043301XX XXXX学院XXXXXXXXXX班摘要：随着我国国民经济的持续高速发展，我国的塑料制品产量非常大，从而引起的环境问题越来越引人关注。
本文从我国现状出发，对废旧塑料的回收与利用进行分析同时讨论其中存在的问题。
此外，本文还介绍几种废旧塑料回收方法及利用技术。
关键词：废旧塑料；回收；利用Title: Recovery and Reuse of Waste PlasticsAbstract：With the rapid development of our national economy, our plastic production is very large, thus causing a more and more remarkable environmental problem. This article analysis the recovery and reuse of waste plastics and at the same time talks about the existing problems. Besides, this article also introduces several waste plastic recycling methods and using technology.Keywords: Waste Plastics; Recovery; Utilization随着我国经济的快速发展，塑料材料及制品已广泛应用于社会各个领域和人民生活中。
塑料作为一种全新的高分子材料，已经为人们所熟知、接受，成为生活中不可缺少的一部分。
但由于种种原因，塑料制品在消费后带来对环境直接的、间接的损害，日益引起社会各界的关注。
在当今世界，杜绝“白色污染”的呼声不绝于耳，塑料工业要想持续、快速发展就必须正视塑料的经济效益与环境利益，及在发展过程中带来的一些负面影响。
塑料回收 英语作文
Plastic Recycling: A Necessary Step TowardsSustainabilityPlastics have become a ubiquitous part of modern life, with their uses ranging from packaging materials tobuilding components. However, the widespread use ofplastics has also led to a significant environmental problem: plastic pollution. As plastics break down into smaller pieces, they can pose a threat to marine life and human health. Therefore, plastic recycling has become a crucial aspect of sustainable development.Plastic recycling involves the collection, sorting, processing, and reuse of plastic waste. This process not only reduces the amount of plastic waste that ends up in landfills and oceans but also conserves resources and reduces energy consumption. Recycled plastics can be usedto make new products, such as clothing, furniture, and packaging materials, reducing the need for virgin plastic production.The benefits of plastic recycling are numerous. Firstly, it helps to reduce the amount of plastic waste in the environment, thus mitigating the harmful effects of plasticpollution. Secondly, recycling conserves valuable resources such as oil and gas, which are used in the production of virgin plastic. Additionally, recycling plastic waste creates job opportunities and contributes to economic growth.Despite these benefits, the implementation of plastic recycling programs has been challenging. One of the main obstacles is the lack of awareness and education regarding plastic recycling. Many people are unaware of the importance of plastic recycling and how to properly dispose of plastic waste. Therefore, it is essential to raise awareness and educate the public on the benefits of plastic recycling and the correct methods of waste disposal.Another challenge is the limited availability of recycling facilities and infrastructure. In many areas, there are no recycling centers or drop-off points for plastic waste, making it difficult for individuals and businesses to recycle their plastic waste. Governments and private sector organizations need to invest in establishing recycling facilities and infrastructure to facilitate plastic recycling.Moreover, the quality and type of plastic waste also affect the recycling process. Some types of plastic are more difficult to recycle than others, and mixed plastic waste can contaminate the recycling stream, making it difficult to process. Therefore, it is crucial to ensure that plastic waste is properly sorted and separated before being recycled.To overcome these challenges and promote plastic recycling, a multi-stakeholder approach is needed. Governments should adopt policies and regulations that encourage plastic recycling, such as providing incentives for recycling and imposing penalties for plastic waste mismanagement. Private sector organizations can invest in recycling technology and infrastructure, while community organizations can raise awareness and educate the public on plastic recycling.In conclusion, plastic recycling is a crucial step towards achieving sustainability and mitigating the harmful effects of plastic pollution. By raising awareness, establishing recycling facilities and infrastructure, and adopting policies and regulations that encourage recycling,we can turn plastic waste into a valuable resource and contribute to a more sustainable future.**塑料回收：通往可持续性的必要步骤**塑料已经成为现代生活中无处不在的一部分，其用途从包装材料到建筑材料各不相同。
回收再利用英语作文
回收再利用的力量In today's world, the concept of recycling and reuse has become increasingly important. With the ever-growing population and the escalating demand for resources, it is crucial that we find sustainable ways to meet our needs without depleting the earth's natural resources. Recycling and reuse are two such sustainable practices that can help us conserve our environment and ensure a better future for generations to come.The benefits of recycling are numerous. Firstly, it helps reduce waste. When we recycle items such as paper, plastic, glass, and metal, we are able to divert them from landfills and prevent them from causing environmental harm. Secondly, recycling conserves natural resources. By using recycled materials, we can conserve raw materials like water, energy, and ore, which are often extracted in environmentally destructive ways. Lastly, recycling creates jobs and stimulates economic growth. The recycling industry employs millions of people worldwide and contributes significantly to the gross domestic product of many countries.However, recycling is not enough. We also need to focus on reuse. Reusing items extends their lifespan and reduces the need for new products. This not only saves resources but also reduces waste. For instance, instead of buying a new pair of shoes every time we want a different style, we can choose to buy shoes that are made from sustainable materials and can be easily repaired or resoled. Similarly, we can choose to buy products that are designed for durability and can be easily upgraded or repaired when they become outdated.In order to encourage recycling and reuse, governments and individuals need to take action. Governments can introduce policies and regulations that promote recycling and reuse. For example, they can implement taxes on non-recyclable products or provide subsidies for recycling companies. Additionally, they can encourage businesses to adopt sustainable practices by providing incentives and grants.Individuals can also play a crucial role in recycling and reuse. We can start by sorting our waste correctly and ensuring that it isdisposed of in recycling bins. We can also choose to buy products that are made from recycled materials or are designed for durability and easy repair. Additionally, we can reduce our consumption by buying only what we need and avoiding single-use items.In conclusion, recycling and reuse are essential practices that can help us conserve our environment and ensure a sustainable future. By taking action and making conscious choices, we can contribute to the protection of our planet and ensure a better quality of life for ourselves and future generations.**回收再利用的力量**在当今世界，回收再利用的概念变得越来越重要。
recycle的用法总结
recycle的用法总结
1. Recycle作为动词，表示回收利用，将废弃物重新加工利用。
例如：
- I always recycle my plastic bottles and cans.
- We should recycle paper to save trees.
2. Recycle也可以作为名词，表示回收利用的行为或过程。
例如：
- Recycling is an effective way to reduce waste.
- I separate my trash into different recycle bins.
3. Recycle还可以用作形容词，表示可回收利用的。
例如：
- This bottle is made of recyclable material.
- Please put the plastic bottles in the recycle bin.
4. 表示演绎或循环再利用的意思。
例如：
- The film recycled scenes from earlier movies.
- These old clothes can be recycled into new designs.
总结：
Recycle是一个多功能的词，可以作为动词、名词或形容词使用，表示回收利用。
它可以用来描述个人的行为、环保事业、可回收物品以及再利用的过程。
塑料回收英文作文
塑料回收英文作文Plastic recycling is important for the environment. It helps reduce pollution and conserve resources. Recycling plastic can be done in different ways.One way to recycle plastic is through mechanical recycling. This process involves sorting and shredding plastic waste into small pieces. The shredded plastic is then melted and formed into new products. Mechanical recycling is a common method used for recycling plastic bottles and containers.Chemical recycling is another method used for plastic recycling. This process involves breaking down plastic into its chemical components. These components can then be used to create new plastic or other materials. Chemicalrecycling is a more complex process and is often used for recycling plastic films and other types of plastic that are difficult to recycle mechanically.Another option for plastic recycling is energy recovery. This involves using plastic waste as a source of energy through incineration or pyrolysis. Incineration involves burning plastic waste at high temperatures, while pyrolysis involves heating plastic waste in the absence of oxygen. Both methods generate heat and electricity that can be used for various purposes.Plastic recycling also helps reduce the amount ofplastic waste that ends up in landfills or oceans. When plastic waste is not properly disposed of, it can take hundreds of years to decompose. This leads to pollution and harm to marine life. By recycling plastic, we can reducethe amount of waste that is sent to landfills and preventit from polluting our environment.In conclusion, plastic recycling plays a crucial rolein protecting the environment. It helps reduce pollution, conserve resources, and prevent plastic waste from endingup in landfills or oceans. There are different methods of plastic recycling, including mechanical recycling, chemicalrecycling, and energy recovery. By recycling plastic, we can contribute to a more sustainable future.。
六年级下册英语——recycle(笔记)
六年级下册英语recycle笔记
以下是关于六年级下册英语"recycle"（回收再利用）主题的笔记：
词汇：
Recycle（回收再利用）：将废物转化成可再利用的物品或资源。
Environment（环境）：周围的自然和人造事物，包括空气、水、土地和生物。
Reduce（减少）：降低使用量，减少浪费。
Reuse（重复使用）：重新使用物品，减少垃圾产生。
Rethink（重新思考）：重新考虑我们对资源的使用方式，寻找更环保的替代方案。
回收再利用的原因：
减少垃圾：回收再利用可以减少废弃物的数量，减轻对垃圾填埋场的压力。
节约资源：回收再利用可以降低对新原材料的需求，节约能源和自然资源。
保护环境：回收再利用可以减少污染和能源消耗，有助于保护环境和生态系统。
回收再利用的方法：
分类垃圾：将废纸、塑料、玻璃、金属等不同类型的垃圾分类处理，方便后续的回收再利用。
垃圾分类的意义：通过垃圾分类，我们可以将可回收的废物送到回收中心进行再加工和利用，减少垃圾对环境的负面影响。
回收物品：回收物品包括纸张、塑料瓶、玻璃瓶、铁罐等。
这些物品可以被再生产为新的产品。
个人责任：
每个人都有责任参与回收再利用的行动。
我们可以从日常生活中小事做起，如节约用水、减少使用塑料袋、购买可持续发展的产品等。
通过教育宣传，提高大家的环保意识，鼓励更多的人加入回收再利用的行列。
这些笔记可以帮助您了解回收再利用的重要性，以及如何在日常生活中参与其中。
记住，每个人都可以为保护环境做出贡献，创造一个更美好的未来。
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Deterioration of plastics
Undesirable chemical and physical changes to plastic materials
hydrogen sulphide, sulphuric acid on surface
Rubber
brittle, discoloured, matte
hydrogen sulphide, sulphuric acid on surface
Adapted from Scott Williams, Care of Plastics: Malignant plastics
Buckle, acrylic bangle
Stress cracking in PMMA
8
Vulcanised rubber emitting sulphur compounds, seen as yellowing on the surrounding packaging materials
9
3
Light, UV
Cellulose nitrate yellow, brittle
(RH) moisture
hydrolysis
emitting
acetic acid, plasticiser
Cellulose acetate yellow, brittle
hydrolysis
acidic & oxidising nitrogen oxide, plasticiser nitrogenous organic gases & liquids
Effect of additives, plasticisers, UV stabilisers and others
2
Chemical deterioration - the most susceptible, problematic plastics
So called malignant plastics because they will off gas and could harm other collection items
7
Cracking, crazing May occur for different reasons
Deterioration seen as cracking in cellulose nitrate, which is also causing the metal bar to corrode badly
yellow, brittle,
shows resistance
less danger
Adapted from Scott Williams, Care of Plastics: Malignant plastics
5
Some signs of deterioration:
Smells Yellowing
Phenolics
discoloured, matte
discoloured, matte
phenol & formaldehyde with severe degradation
Polyolefin
yellow, brittle,
shows resistance
less danger
Polystyrene
Crazing
Cracking Crumbling Embrittlement Shrinking Warping Weeping Blistering Blooming Sticky surface
6
Some characteristic smells
•Acrid smell – cellulose nitrate •Vinegar syndrome, acetic acid from cellulose acetate •Vomit – cellulose butyrate, cellulose acetate butyrate •New car smell, plasticiser - PVC
Yellowing, discolouring
PVC (including plasticised varieties) showing yellowing
•Cellulose nitrate (cellulose ester) •Cellulose acetate (cellulose ester) •Polyurethane (especially foam) •PVC (plasticised)
• Fully vulcanised hard rubber (Vulcanite, Ebonite)
Influenced by light (especially UV), atmospheric oxygen (oxidation), moisture (hydrolysis) Chain scission – shortening of polymer chains, crumbling Cross-linking - joining of polymer chains, embrittlement
Polyurethane
yellow, brittle, sticky, crumbles
yellow, brittle, sticky, crumbles
Poly(vinyl chloride) yellow, brittle,
resistant
oily plasticiser liquids, hydrochloric gas in extreme moisture & light
4
Light, UV
Acrylics
(PMMA)
(RH)
shows resistance
emitting
less danger
shows resistance
Nylon
yellow, brittle
hydrolysis in extreme conditions
less danger