Re: [新聞] 人尿也能製磚賺錢！生物磚讓建築越老越硬

看板Gossiping作者GETpoint (擲雷爆卦)時間6年前 (2019/06/13 12:48)推噓1(1推 0噓 2→)

留言3則, 3人參與討論串2/2 (看更多)

美國已經提出（Project Medusa）「美杜莎計畫」的專案。目前已經成功包括打造2,500平方英尺（約232平方米）的跑道原型。 https://www.youtube.com/watch?v=lIS0gtCbadU

https://is.gd/gbdZOJ “We started out thinking about the differences between the way we fight today in the Air Force and what tomorrow’s fight might look like,” Hunstock said. “Knowing that we’re going into more of a near-peer competition, one of the things we talked a lot about was how we’re going to have to move away from our centralized basing that we use today and more into a dispersed and agile type of basing.” The team wanted to narrow the scope of the problem down, so they looked at the issue of not having the availability of runways everywhere that the Air Force might need to go. “We wanted to try to find a way that we could get into those austere locations to rapidly create landing zones for our aircraft where we don’t already have them,” Hunstock said. “That also means with this type of basing situation, you’re not going to have a month or two to go in and build your normal concrete runways. We need something that’s going to take a lot less time and require less people and less heavy equipment.” While trying to think completely out of the box, which is what Blue Horizons fellows are asked to do, the team came up with an innovative idea that might seem to be perched on the edge of reality. “The idea that we came to was using biomanufacturing to build runways, which can also be translated into things like ramp space or any hardened surface that you might need. By saying biomanufacturing, what we mean is that we’re applying bacteria to the surface, feeding it and effectively growing a runway. This process could potentially replace the need to bring in cement, heavy equipment and dozens of personnel to create a concrete runway,” Birchenough said. “While our prototype is a small step toward enabling full runways to be built with something other than concrete, it demonstrates this technology is absolutely feasible outside of the laboratory and could be used to support the warfighter much sooner than expected,” Birchenough said. They started by testing different protocols with two-foot by two-foot boxes, but their final prototype was a 2,500-square-foot site to demonstrate the process on a much larger scale. Working with bioMASON, a biomanufacturing company in Durham, North Carolina, the team created the site near there. The 2,500-square-foot prototype turned out great, working exactly how they expected it to, Birchenough said. “It showed that we could reproduce what we had done in the laboratory and on a larger scale. The really exciting thing about this process is that it utilizes the local soil and requires very little equipment. Basically, you need an agricultural sprayer and some water tanks, so there is very little in materials you need to bring to the site,” Birchenough said. “We learned that while biotechnology sounds like it is part of a future science fiction type of idea, it’s actually here and now, and it’s absolutely leverageable for the (Defense Department) and we need to be investing in it at a much higher rate,” she said. The team was lucky to work with the Air Force Strategic Development Planning and Experimentation Office as well as the Air Force Research Laboratory Materials and Manufacturing Directorate on the project, according to Birchenough. 「藍色地平線」正與「生物泥水匠」（BioMASON）公司合作，研發相關技術。BioMASON是北卡羅來納州的生物製造公司，開發出能將沙土轉化為耐用堅硬的表面。工程師先將砂石倒入磚模，接著加入細菌，然後倒入營養液促進細菌增生，逐漸會形成碳酸鈣晶體，把材料凝結起來，製造出能用以建設的耐用磚塊。 ※ 引述《antiabian (長者生命眾籌委員會主委)》之銘言： : 1.媒體來源: : 聯合新聞網 : 2.完整新聞標題: : 人尿也能製磚賺錢！生物磚讓建築越老越堅固 : 3.完整新聞內文: : 2018-10-28 07:57聯合報記者郭宣含╱即時報導 : 生物磚（bio-brick）混合沙子與可生成尿素酶的細菌製成，其中的尿素酶可分解尿液中 : 的尿素，同時生成碳酸鈣。 : 沙子與尿素酶的混合磚可比擬石灰岩磚，但差別在於生物磚的硬度可高可低，取決於細菌 : 有多少時間可以成長。 : 研究主要作者蘭德爾（Dylan Randall）在南非開普敦大學發布的解說中表示：「你讓微 : 小細菌製造水泥的時間越久，產品就會越堅硬。我們可以優化這個過程。」 : 全球大多數磚塊依舊採原始過程燒成，窯的溫度固定在攝氏1400度，過程中會產生大量二 : 氧化碳。不過生物磚產生的廢棄物為零，副產品氮和鉀可用於製作商業肥料。 : 蘭德爾博士表示：「最後要做的就是將生物磚製造過程中剩餘的液態產品取出，製成第二 : 種肥料。」 : 蘭德爾指出這種過程稱作「微生物誘導碳酸鹽沉澱」（ microbial carbonate : precipitation），模仿大海珊瑚的形成方法。這種製造方式可大大造福建築物和建造業 : ，隨著建築物老舊耗損，這種生活物質能顯著降低維修成本。 : 20世紀下半葉，許多以混泥土建成的粗野派建築逐漸遭淘汰，因為這類建築忽視維修，水 : 泥從內部腐蝕。但近年自癒材料科技進步，伯明罕大學和紐約研究團隊發現一種細菌，可 : 協助製造自癒混凝土。 : 自癒材料並非新概念。羅馬工程師無意間發現含有類似碳酸鈣的化合物，讓古代建築物得 : 以保存至今。問題是羅馬人並未明確寫出，製作這種材料需要哪些化合物。 : 一篇發表於2017年「美國礦物學家」期刊的研究發現，羅馬混凝土含有罕見礦物質，例如 : 雪矽鈣石和鈣十字石沸石。這兩種礦物質暴露於海水一段時間後結晶，可讓建築物越舊卻 : 越穩固。 : 雖然開普敦大學團隊還沒準備採業界規模製磚，但他們的研究卻開創出一種未來，讓人類 : 尿液可在永續建築中扮演一角。 : 蘭德爾說，整個水循環中沒人在意尿液，也沒人在乎能否利用尿液重新發現許多有價值的 : 新產品；現在下一步就是研究如何優化製造過程，並利用尿液獲利。 : 4.完整新聞連結 (或短網址): : https://udn.com/news/story/6810/3446727?from=udn_ch1cate7225_pulldownmenu : 5.備註: : 厲害了，五樓你怎麼看？ -- 七魄興輪無上伊甸瑜珈雖然是以看來較為平和的方式以蟬蛻和生乳取代血肉等腥穢之物作為密義源起供養；然而聚歛於上的是冥界的深冤與大樂奔瀉的淨慈，行者於閉關修持之時若生起退失動搖之心，則神識旋即離散且肉身消殞；即便如此還是願意受灌頂嗎？ https://imgur.com/cEVD0kE

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