دراسة أسترالية تكشف عن إمكانية تعزيز الخرسانة بنسبة 30% باستخدام مخلفات القهوة

دراسة أسترالية تكشف عن إمكانية تعزيز الخرسانة بنسبة 30% باستخدام مخلفات القهوة

في خطوة مبتكرة تجمع بين الاستدامة البيئية وتطوير تقنيات البناء، كشف علماء أستراليون عن إمكانية استخدام مخلفات القهوة المتفحمة لتعزيز قوة الخرسانة بنسبة تصل إلى 30%. هذه الدراسة، التي نشرتها دورية “Cleaner Production” ونقلها موقع “Science Alert”، تقدم حلاً فعّالًا لمشكلة تراكم نفايات القهوة وتسهم في تحسين الأداء البيئي لمواد البناء.

النفايات العضوية: مشكلة بيئية عالمية

ينتج العالم سنويًا حوالي 10 مليارات كيلوغرام من نفايات القهوة. غالبًا ما تنتهي هذه المخلفات في مدافن النفايات، حيث تتحلل وتطلق غازات الدفيئة مثل الميثان وثاني أكسيد الكربون. هذه الغازات تساهم بشكل كبير في تغير المناخ، مما يجعل إدارة النفايات العضوية تحديًا بيئيًا ملحًا.

الابتكار في استخدام النفايات

أوضح الباحث المهندس راجيف رويتشاند من معهد ملبورن الملكي للتكنولوجيا (RMIT) أن التخلص من النفايات العضوية يشكل تحديًا بيئيًا كبيرًا بسبب الانبعاثات الغازية الضارة. ومع ازدهار سوق البناء العالمي، يتزايد الطلب على الخرسانة، وهي مادة كثيفة الموارد، مما يسبب مجموعة أخرى من التحديات البيئية.

الاستدامة في صناعة البناء

تتطلب صناعة البناء كميات هائلة من الرمال الطبيعية التي تُستخرج عادة من قيعان الأنهار وضفافها. هذا الاستخراج المستمر يسبب أضرارًا بيئية كبيرة، بما في ذلك تآكل الموائل الطبيعية. أشار الباحث جي لي من (RMIT) إلى أن الحفاظ على إمدادات مستدامة من الرمال يمثل تحديًا طويل الأمد بسبب الطبيعة المحدودة للموارد والآثار البيئية للاستخراج.

التحلل الحراري: تحويل النفايات إلى موارد

لا يمكن إضافة المنتجات العضوية مثل القهوة المطحونة مباشرة إلى الخرسانة لأنها تسرب مواد كيميائية تضعف قوة مواد البناء. لذا، استخدم فريق الباحثين في (RMIT) عملية التحلل الحراري، حيث يتم تسخين مخلفات القهوة إلى أكثر من 350 درجة مئوية مع حرمانها من الأكسجين. هذه العملية تؤدي إلى إنتاج فحم حيوي غني بالكربون، يمكن دمجه مع الأسمنت لتعزيز قوته.

نتائج واعدة وتحديات مستقبلية

أظهرت الدراسة أن معالجة القهوة عند 500 درجة مئوية لم تكن فعالة بنفس القدر، مما يبرز أهمية الظروف الدقيقة في عملية التحلل الحراري. ورغم النتائج الواعدة، أكد الباحثون ضرورة تقييم المتانة طويلة الأمد لإسمنت القهوة الهجين تحت ظروف مختلفة مثل دورات التجميد/الذوبان وامتصاص الماء. كما يعمل الفريق على إنتاج الفحم الحيوي من مصادر نفايات عضوية أخرى مثل الخشب ومخلفات الطعام والنفايات الزراعية.

نحو اقتصاد دائري

قال شانون كيلمارتن لينش، أحد الباحثين المشاركين في الدراسة من (RMIT)، إن “هذه النتائج المثيرة تقدم طريقة مبتكرة لتقليل كمية النفايات العضوية التي تذهب إلى مكب النفايات بشكل كبير.” يؤكد الباحثون أن التحول إلى نهج الاقتصاد الدائري يمكن أن يسهم بشكل كبير في الحفاظ على الموارد الطبيعية وتحسين الاستدامة البيئية. النهج الدائري يعتمد على إعادة استخدام الموارد وتقليل النفايات، مما يساهم في تحقيق توازن بيئي مستدام.

استدامة المستقبل

بينما لا تزال الأبحاث في مراحلها الأولى، تحمل هذه النتائج وعودًا كبيرة لتحسين الاستدامة البيئية في المستقبل. استخدام مخلفات القهوة في تعزيز الخرسانة ليس فقط حلاً لمشكلة تراكم النفايات، بل يمثل أيضًا خطوة نحو تطوير مواد بناء أكثر استدامة وصديقة للبيئة.

تعد هذه الدراسة جزءًا من جهود أكبر لتعزيز الابتكار في مجال إدارة النفايات وتطوير مواد البناء المستدامة. ومع استمرار البحث والتطوير، يمكن أن نشهد تطبيقات أوسع لهذه التقنيات في مختلف المجالات، مما يعزز من قدرتنا على تحقيق أهداف التنمية المستدامة والمحافظة على كوكبنا للأجيال القادمة.

فوائد إضافية

استخدام الفحم الحيوي الناتج عن التحلل الحراري لمخلفات القهوة يمكن أن يحسن من خواص الخرسانة، مثل زيادة مقاومتها للتآكل والتلف. هذا يعني أن المباني والهياكل التي تستخدم هذا النوع من الخرسانة قد تكون أكثر دوامًا وأقل حاجة للصيانة، مما يقلل من التكاليف على المدى الطويل ويسهم في بناء مستقبل أكثر استدامة.

الخاتمة

تقدم الدراسة الأسترالية حول استخدام مخلفات القهوة في تعزيز الخرسانة مثالًا رائعًا على كيفية تحويل مشكلة بيئية إلى حل مبتكر ومستدام. بفضل هذه الأبحاث، يمكن أن نشهد تحولًا في كيفية تعاملنا مع النفايات العضوية واستغلالها في تطوير مواد بناء أقوى وأكثر استدامة. هذا النهج يعزز من قدرتنا على مواجهة التحديات البيئية الكبيرة ويؤكد أهمية الابتكار في تحقيق الاستدامة البيئية.

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[:ar]Privacy Policy for qahwa world At qahwaworld, accessible from qahwaworld.com, one of our main priorities is the privacy of our visitors. This Privacy Policy document contains types of information that is collected and recorded by qahwaworld and how we use it. If you have additional questions or require more information about our Privacy Policy, do not hesitate to contact us. This Privacy Policy applies only to our online activities and is valid for visitors to our website with regards to the information that they shared and/or collect in qahwaworld. This policy is not applicable to any information collected offline or via channels other than this website. Our Privacy Policy was created with the help of the Free Privacy Policy Generator. Consent By using our website, you hereby consent to our Privacy Policy and agree to its terms. Information we collect The personal information that you are asked to provide, and the reasons why you are asked to provide it, will be made clear to you at the point we ask you to provide your personal information. If you contact us directly, we may receive additional information about you such as your name, email address, phone number, the contents of the message and/or attachments you may send us, and any other information you may choose to provide. When you register for an Account, we may ask for your contact information, including items such as name, company name, address, email address, and telephone number. How we use your information We use the information we collect in various ways, including to: Provide, operate, and maintain our website Improve, personalize, and expand our website Understand and analyze how you use our website Develop new products, services, features, and functionality Communicate with you, either directly or through one of our partners, including for customer service, to provide you with updates and other information relating to the website, and for marketing and promotional purposes Send you emails Find and prevent fraud Log Files qahwaworld follows a standard procedure of using log files. These files log visitors when they visit websites. All hosting companies do this and a part of hosting services' analytics. The information collected by log files include internet protocol (IP) addresses, browser type, Internet Service Provider (ISP), date and time stamp, referring/exit pages, and possibly the number of clicks. These are not linked to any information that is personally identifiable. The purpose of the information is for analyzing trends, administering the site, tracking users' movement on the website, and gathering demographic information. Cookies and Web Beacons Like any other website, qahwaworld uses 'cookies'. These cookies are used to store information including visitors' preferences, and the pages on the website that the visitor accessed or visited. The information is used to optimize the users' experience by customizing our web page content based on visitors' browser type and/or other information. For more general information on cookies, please read the Cookies article on Generate Privacy Policy website. Google DoubleClick DART Cookie Google is one of a third-party vendor on our site. It also uses cookies, known as DART cookies, to serve ads to our site visitors based upon their visit to www.website.com and other sites on the internet. However, visitors may choose to decline the use of DART cookies by visiting the Google ad and content network Privacy Policy at the following URL – https://policies.google.com/technologies/ads Our Advertising Partners Some of advertisers on our site may use cookies and web beacons. Our advertising partners are listed below. Each of our advertising partners has their own Privacy Policy for their policies on user data. For easier access, we hyperlinked to their Privacy Policies below. Google https://policies.google.com/technologies/ads Advertising Partners Privacy Policies You may consult this list to find the Privacy Policy for each of the advertising partners of qahwaworld. Third-party ad servers or ad networks uses technologies like cookies, JavaScript, or Web Beacons that are used in their respective advertisements and links that appear on qahwaworld, which are sent directly to users' browser. They automatically receive your IP address when this occurs. These technologies are used to measure the effectiveness of their advertising campaigns and/or to personalize the advertising content that you see on websites that you visit. Note that qahwaworld has no access to or control over these cookies that are used by third-party advertisers. Third Party Privacy Policies qahwaworld's Privacy Policy does not apply to other advertisers or websites. Thus, we are advising you to consult the respective Privacy Policies of these third-party ad servers for more detailed information. It may include their practices and instructions about how to opt-out of certain options. You can choose to disable cookies through your individual browser options. To know more detailed information about cookie management with specific web browsers, it can be found at the browsers' respective websites. CCPA Privacy Rights (Do Not Sell My Personal Information) Under the CCPA, among other rights, California consumers have the right to: Request that a business that collects a consumer's personal data disclose the categories and specific pieces of personal data that a business has collected about consumers. Request that a business delete any personal data about the consumer that a business has collected. Request that a business that sells a consumer's personal data, not sell the consumer's personal data. If you make a request, we have one month to respond to you. If you would like to exercise any of these rights, please contact us. GDPR Data Protection Rights We would like to make sure you are fully aware of all of your data protection rights. Every user is entitled to the following: The right to access – You have the right to request copies of your personal data. We may charge you a small fee for this service. The right to rectification – You have the right to request that we correct any information you believe is inaccurate. You also have the right to request that we complete the information you believe is incomplete. The right to erasure – You have the right to request that we erase your personal data, under certain conditions. The right to restrict processing – You have the right to request that we restrict the processing of your personal data, under certain conditions. The right to object to processing – You have the right to object to our processing of your personal data, under certain conditions. The right to data portability – You have the right to request that we transfer the data that we have collected to another organization, or directly to you, under certain conditions. If you make a request, we have one month to respond to you. If you would like to exercise any of these rights, please contact us. Children's Information Another part of our priority is adding protection for children while using the internet. We encourage parents and guardians to observe, participate in, and/or monitor and guide their online activity. qahwaworld does not knowingly collect any Personal Identifiable Information from children under the age of 13. If you think that your child provided this kind of information on our website, we strongly encourage you to contact us immediately and we will do our best efforts to promptly remove such information from our records.[:en]

Privacy Policy for Qahwa World

At Qahwa World, accessible from https://qahwaworld.com, one of our main priorities is the privacy of our visitors. This Privacy Policy document contains types of information that is collected and recorded by Qahwa World and how we use it. If you have additional questions or require more information about our Privacy Policy, do not hesitate to contact us. This Privacy Policy applies only to our online activities and is valid for visitors to our website with regards to the information that they shared and/or collect in Qahwa World. This policy is not applicable to any information collected offline or via channels other than this website. Our Privacy Policy was created with the help of the Free Privacy Policy Generator.

Consent

By using our website, you hereby consent to our Privacy Policy and agree to its terms.

Information we collect

The personal information that you are asked to provide, and the reasons why you are asked to provide it, will be made clear to you at the point we ask you to provide your personal information. If you contact us directly, we may receive additional information about you such as your name, email address, phone number, the contents of the message and/or attachments you may send us, and any other information you may choose to provide. When you register for an Account, we may ask for your contact information, including items such as name, company name, address, email address, and telephone number.

How we use your information

We use the information we collect in various ways, including to:
  • Provide, operate, and maintain our website
  • Improve, personalize, and expand our website
  • Understand and analyze how you use our website
  • Develop new products, services, features, and functionality
  • Communicate with you, either directly or through one of our partners, including for customer service, to provide you with updates and other information relating to the website, and for marketing and promotional purposes
  • Send you emails
  • Find and prevent fraud

Log Files

Qahwa World follows a standard procedure of using log files. These files log visitors when they visit websites. All hosting companies do this and a part of hosting services' analytics. The information collected by log files include internet protocol (IP) addresses, browser type, Internet Service Provider (ISP), date and time stamp, referring/exit pages, and possibly the number of clicks. These are not linked to any information that is personally identifiable. The purpose of the information is for analyzing trends, administering the site, tracking users' movement on the website, and gathering demographic information.

Cookies and Web Beacons

Like any other website, Qahwa World uses 'cookies'. These cookies are used to store information including visitors' preferences, and the pages on the website that the visitor accessed or visited. The information is used to optimize the users' experience by customizing our web page content based on visitors' browser type and/or other information. For more general information on cookies, please read the Cookies article on Generate Privacy Policy website.

Google DoubleClick DART Cookie

Google is one of a third-party vendor on our site. It also uses cookies, known as DART cookies, to serve ads to our site visitors based upon their visit to www.website.com and other sites on the internet. However, visitors may choose to decline the use of DART cookies by visiting the Google ad and content network Privacy Policy at the following URL – https://policies.google.com/technologies/ads

Our Advertising Partners

Some of advertisers on our site may use cookies and web beacons. Our advertising partners are listed below. Each of our advertising partners has their own Privacy Policy for their policies on user data. For easier access, we hyperlinked to their Privacy Policies below.

Advertising Partners Privacy Policies

You may consult this list to find the Privacy Policy for each of the advertising partners of Qahwa World. Third-party ad servers or ad networks uses technologies like cookies, JavaScript, or Web Beacons that are used in their respective advertisements and links that appear on Qahwa World, which are sent directly to users' browser. They automatically receive your IP address when this occurs. These technologies are used to measure the effectiveness of their advertising campaigns and/or to personalize the advertising content that you see on websites that you visit. Note that Qahwa World has no access to or control over these cookies that are used by third-party advertisers.

Third Party Privacy Policies

Qahwa World's Privacy Policy does not apply to other advertisers or websites. Thus, we are advising you to consult the respective Privacy Policies of these third-party ad servers for more detailed information. It may include their practices and instructions about how to opt-out of certain options. You can choose to disable cookies through your individual browser options. To know more detailed information about cookie management with specific web browsers, it can be found at the browsers' respective websites.

CCPA Privacy Rights (Do Not Sell My Personal Information)

Under the CCPA, among other rights, California consumers have the right to: Request that a business that collects a consumer's personal data disclose the categories and specific pieces of personal data that a business has collected about consumers. Request that a business delete any personal data about the consumer that a business has collected. Request that a business that sells a consumer's personal data, not sell the consumer's personal data. If you make a request, we have one month to respond to you. If you would like to exercise any of these rights, please contact us.

GDPR Data Protection Rights

We would like to make sure you are fully aware of all of your data protection rights. Every user is entitled to the following: The right to access – You have the right to request copies of your personal data. We may charge you a small fee for this service. The right to rectification – You have the right to request that we correct any information you believe is inaccurate. You also have the right to request that we complete the information you believe is incomplete. The right to erasure – You have the right to request that we erase your personal data, under certain conditions. The right to restrict processing – You have the right to request that we restrict the processing of your personal data, under certain conditions. The right to object to processing – You have the right to object to our processing of your personal data, under certain conditions. The right to data portability – You have the right to request that we transfer the data that we have collected to another organization, or directly to you, under certain conditions. If you make a request, we have one month to respond to you. If you would like to exercise any of these rights, please contact us.

Children's Information

Another part of our priority is adding protection for children while using the internet. We encourage parents and guardians to observe, participate in, and/or monitor and guide their online activity. Qahwa World does not knowingly collect any Personal Identifiable Information from children under the age of 13. If you think that your child provided this kind of information on our website, we strongly encourage you to contact us immediately and we will do our best efforts to promptly remove such information from our records.[:ru]Privacy Policy for qahwa world At qahwaworld, accessible from qahwaworld.com, one of our main priorities is the privacy of our visitors. This Privacy Policy document contains types of information that is collected and recorded by qahwaworld and how we use it. If you have additional questions or require more information about our Privacy Policy, do not hesitate to contact us. This Privacy Policy applies only to our online activities and is valid for visitors to our website with regards to the information that they shared and/or collect in qahwaworld. This policy is not applicable to any information collected offline or via channels other than this website. Our Privacy Policy was created with the help of the Free Privacy Policy Generator. Consent By using our website, you hereby consent to our Privacy Policy and agree to its terms. Information we collect The personal information that you are asked to provide, and the reasons why you are asked to provide it, will be made clear to you at the point we ask you to provide your personal information. If you contact us directly, we may receive additional information about you such as your name, email address, phone number, the contents of the message and/or attachments you may send us, and any other information you may choose to provide. When you register for an Account, we may ask for your contact information, including items such as name, company name, address, email address, and telephone number. How we use your information We use the information we collect in various ways, including to: Provide, operate, and maintain our website Improve, personalize, and expand our website Understand and analyze how you use our website Develop new products, services, features, and functionality Communicate with you, either directly or through one of our partners, including for customer service, to provide you with updates and other information relating to the website, and for marketing and promotional purposes Send you emails Find and prevent fraud Log Files qahwaworld follows a standard procedure of using log files. These files log visitors when they visit websites. All hosting companies do this and a part of hosting services' analytics. The information collected by log files include internet protocol (IP) addresses, browser type, Internet Service Provider (ISP), date and time stamp, referring/exit pages, and possibly the number of clicks. These are not linked to any information that is personally identifiable. The purpose of the information is for analyzing trends, administering the site, tracking users' movement on the website, and gathering demographic information. Cookies and Web Beacons Like any other website, qahwaworld uses 'cookies'. These cookies are used to store information including visitors' preferences, and the pages on the website that the visitor accessed or visited. The information is used to optimize the users' experience by customizing our web page content based on visitors' browser type and/or other information. For more general information on cookies, please read the Cookies article on Generate Privacy Policy website. Google DoubleClick DART Cookie Google is one of a third-party vendor on our site. It also uses cookies, known as DART cookies, to serve ads to our site visitors based upon their visit to www.website.com and other sites on the internet. However, visitors may choose to decline the use of DART cookies by visiting the Google ad and content network Privacy Policy at the following URL – https://policies.google.com/technologies/ads Our Advertising Partners Some of advertisers on our site may use cookies and web beacons. Our advertising partners are listed below. Each of our advertising partners has their own Privacy Policy for their policies on user data. For easier access, we hyperlinked to their Privacy Policies below. Google https://policies.google.com/technologies/ads Advertising Partners Privacy Policies You may consult this list to find the Privacy Policy for each of the advertising partners of qahwaworld. Third-party ad servers or ad networks uses technologies like cookies, JavaScript, or Web Beacons that are used in their respective advertisements and links that appear on qahwaworld, which are sent directly to users' browser. They automatically receive your IP address when this occurs. These technologies are used to measure the effectiveness of their advertising campaigns and/or to personalize the advertising content that you see on websites that you visit. Note that qahwaworld has no access to or control over these cookies that are used by third-party advertisers. Third Party Privacy Policies qahwaworld's Privacy Policy does not apply to other advertisers or websites. Thus, we are advising you to consult the respective Privacy Policies of these third-party ad servers for more detailed information. It may include their practices and instructions about how to opt-out of certain options. You can choose to disable cookies through your individual browser options. To know more detailed information about cookie management with specific web browsers, it can be found at the browsers' respective websites. CCPA Privacy Rights (Do Not Sell My Personal Information) Under the CCPA, among other rights, California consumers have the right to: Request that a business that collects a consumer's personal data disclose the categories and specific pieces of personal data that a business has collected about consumers. Request that a business delete any personal data about the consumer that a business has collected. Request that a business that sells a consumer's personal data, not sell the consumer's personal data. If you make a request, we have one month to respond to you. If you would like to exercise any of these rights, please contact us. GDPR Data Protection Rights We would like to make sure you are fully aware of all of your data protection rights. Every user is entitled to the following: The right to access – You have the right to request copies of your personal data. We may charge you a small fee for this service. The right to rectification – You have the right to request that we correct any information you believe is inaccurate. You also have the right to request that we complete the information you believe is incomplete. The right to erasure – You have the right to request that we erase your personal data, under certain conditions. The right to restrict processing – You have the right to request that we restrict the processing of your personal data, under certain conditions. The right to object to processing – You have the right to object to our processing of your personal data, under certain conditions. The right to data portability – You have the right to request that we transfer the data that we have collected to another organization, or directly to you, under certain conditions. If you make a request, we have one month to respond to you. If you would like to exercise any of these rights, please contact us. Children's Information Another part of our priority is adding protection for children while using the internet. We encourage parents and guardians to observe, participate in, and/or monitor and guide their online activity. qahwaworld does not knowingly collect any Personal Identifiable Information from children under the age of 13. If you think that your child provided this kind of information on our website, we strongly encourage you to contact us immediately and we will do our best efforts to promptly remove such information from our records.[:]
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