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関連する概念動画

Plasticizers01:31

Plasticizers

238
Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
238
Design Example: Sustainability in Concrete Building01:26

Design Example: Sustainability in Concrete Building

321
As the construction industry moves towards more eco-friendly practices, concrete's adaptability and its ability to incorporate sustainable features make it a key material in the drive towards greener building solutions.
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground...
321
Plastic Behavior01:21

Plastic Behavior

430
A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and...
430
Bioremediation00:46

Bioremediation

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Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
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Scalable Step-by-Step Approach of Sustainable Bioplastic Production from Food Waste
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Scalable Step-by-Step Approach of Sustainable Bioplastic Production from Food Waste

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プラスチック汚染ゼロに向けたシナリオの評価

Winnie W Y Lau1, Yonathan Shiran2, Richard M Bailey3

  • 1The Pew Charitable Trusts, 901 E Street NW, Washington, DC 20004, USA. wlau@pewtrusts.org yonathan.shiran@systemiq.earth richard.bailey@ouce.ox.ac.uk c.velis@leeds.ac.uk jpalardy@pewtrusts.org.

Science (New York, N.Y.)
|July 25, 2020
PubMed
まとめ
この要約は機械生成です。

プラスチック汚染を40%削減できる しかし 即座に対策を講じても 大量のプラスチック廃棄物が 生態系に入り込み 消費を抑制し 廃棄物管理を改善するために 緊急の世界的な取り組みが必要になります

さらに関連する動画

Data Collection on Marine Litter Ingestion in Sea Turtles and Thresholds for Good Environmental Status
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Data Collection on Marine Litter Ingestion in Sea Turtles and Thresholds for Good Environmental Status

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Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture
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Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture

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関連する実験動画

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08:14

Scalable Step-by-Step Approach of Sustainable Bioplastic Production from Food Waste

Published on: July 18, 2025

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Data Collection on Marine Litter Ingestion in Sea Turtles and Thresholds for Good Environmental Status
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Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture
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科学分野:

  • 環境科学
  • 廃棄物管理
  • 汚染 制御

背景:

  • プラスチックの汚染は 大きく増大する世界的な環境問題です
  • プラスチック廃棄物とマイクロプラスチック源のダイナミクスを理解することは,効果的な緩和戦略の開発に不可欠です.

研究 の 目的:

  • 世界的なプラスチックシステムのモデルを作成し,プラスチック汚染を減らすための様々な介入の効果を推定する.
  • 2016年から2040年までの異なるシナリオでプラスチック汚染レベルを予測する.

主な方法:

  • 都市固体廃棄物と4つのマイクロプラスチック源をシミュレートするグローバルモデルの開発
  • 2016年から2040年の間に実行可能なすべての介入を含む5つの異なるシナリオの分析

主要な成果:

  • 可能なすべての介入を実施することで,2016年のレベルと比較してプラスチック汚染を40%削減すると予測されています.
  • これは2040年までに"通常通り"のシナリオと比較して78%の減少を意味します.
  • これらの削減にもかかわらず 推定7億1000万トンのプラスチック廃棄物が 2040年までに生態系に 流入する可能性があります

結論:

  • プラスチック汚染を大幅に軽減するには 協調したグローバルな行動が不可欠です
  • 重要な戦略はプラスチック消費の削減,再利用,収集,リサイクル率の向上,廃棄物の処理の改善,プラスチックバリューチェーンにおけるイノベーションの促進です.