久久亚洲国产成人影院-久久亚洲国产的中文-久久亚洲国产高清-久久亚洲国产精品-亚洲图片偷拍自拍-亚洲图色视频

English 中文網(wǎng) 漫畫網(wǎng) 愛新聞iNews 翻譯論壇
中國(guó)網(wǎng)站品牌欄目(頻道)
當(dāng)前位置: Language Tips> Audio & Video> 新聞播報(bào)> Normal Speed News VOA常速

Seattle to recycle food waste into electricity

[ 2010-11-02 12:34]     字號(hào) [] [] []  
免費(fèi)訂閱30天China Daily雙語(yǔ)新聞手機(jī)報(bào):移動(dòng)用戶編輯短信CD至106580009009

Seattle to recycle food waste into electricity

In the northwestern United States, the city of Seattle requires its residents to separate food waste from the rest of their trash. The food gets recycled into compost for lawns, gardens and, soon, into electricity.

Every day, at Cedar Grove Composting north of Seattle, truck after truck pulls into this huge warehouse to dump loads of food and yard waste.

"There's a nice mix of green waste and material. We actually have different seasons here in the tipping building," says Susan Thoman, business development director for Cedar Grove. "There's pumpkin season, that's the first of November after Halloween. We have Christmas tree season, which is obviously the first part of January after the holidays."

According to Thoman, food waste and yard waste are currently all dumped in a pile together. Then they're mixed with microbes, ground up, and poured in long, covered rows to biodegrade for a month.

The people who work at Cedar Grove talk about compost the way chefs talk about food. Thoman digs her hands into a rich, dark pile of the finished product.

"This is what it's all about, though, here. This is what those wonderful things we divert from the landfill turn into."

Alternative energy

Now Cedar Grove has a new recipe in mind for its food waste. Before turning banana peels and bread crusts into compost, the company wants to use them to create alternative energy.

Food waste would be separated and sprinkled with bacteria to help the food begin to break down. Then it would be poured into a closed container called an anaerobic digester, where the decomposing food would start releasing large amounts of methane.

Instead of letting that methane escape into the atmosphere, where it could contribute to global warming, Cedar Grove would suck it up and store it. Then they could burn it, to power and heat the compost facility.

Lawrence Klein, technology and development planner for Cedar Grove, says they could also convert the gas from the food waste to compressed natural gas, to fuel their trucks.

"I mean, it's a beautiful image," says Klein. "It's taking a waste product and then driving down the highway with it. I'm excited about it."

Electrifying waste

The natural gas could also provide electricity.

"That's somewhere in the lines of eight million to 10 million kilowatt hours per year," says Klein. "That's comparable to about 400-plus Seattle homes."

Turning food waste into biogas would make food recycling more profitable - especially because the food could still be used for compost after the gas-extraction process.

"Garbage is the key to sustainability," says Sally Brown, a soils scientist at the University of Washington. She says turning food scraps into energy may be new to Americans, but it's well-established in Europe.

"It's not the whole solution, but it's something that we have the technology in hand and it's something that can be done right away to provide a significant amount of electricity."

Wastewater treatment plants around the country already use anaerobic digesters to produce biogas from solid waste. Brown says food waste is even more efficient because it hasn't been eaten yet. That means it's still full of calories - and calories are energy.

Cedar Grove has gotten a million-dollar grant from the state government to pursue its food-to-fuel plan. The company is in the design and permitting phase.

Once construction starts, it could be up and running within a year.

anaerobic digester: 厭氣消化槽

Related stories:

PC recycler strikes gold in old computer chips

Treating rubbish as a resource

圣誕將至 法國(guó)流行送二手禮物

Project finds new homes for unwanted bikes from US

(來(lái)源:VOA 編輯:陳丹妮)

 
中國(guó)日?qǐng)?bào)網(wǎng)英語(yǔ)點(diǎn)津版權(quán)說明:凡注明來(lái)源為“中國(guó)日?qǐng)?bào)網(wǎng)英語(yǔ)點(diǎn)津:XXX(署名)”的原創(chuàng)作品,除與中國(guó)日?qǐng)?bào)網(wǎng)簽署英語(yǔ)點(diǎn)津內(nèi)容授權(quán)協(xié)議的網(wǎng)站外,其他任何網(wǎng)站或單位未經(jīng)允許不得非法盜鏈、轉(zhuǎn)載和使用,違者必究。如需使用,請(qǐng)與010-84883631聯(lián)系;凡本網(wǎng)注明“來(lái)源:XXX(非英語(yǔ)點(diǎn)津)”的作品,均轉(zhuǎn)載自其它媒體,目的在于傳播更多信息,其他媒體如需轉(zhuǎn)載,請(qǐng)與稿件來(lái)源方聯(lián)系,如產(chǎn)生任何問題與本網(wǎng)無(wú)關(guān);本網(wǎng)所發(fā)布的歌曲、電影片段,版權(quán)歸原作者所有,僅供學(xué)習(xí)與研究,如果侵權(quán),請(qǐng)?zhí)峁┌鏅?quán)證明,以便盡快刪除。
 

關(guān)注和訂閱

人氣排行

翻譯服務(wù)

中國(guó)日?qǐng)?bào)網(wǎng)翻譯工作室

我們提供:媒體、文化、財(cái)經(jīng)法律等專業(yè)領(lǐng)域的中英互譯服務(wù)
電話:010-84883468
郵件:translate@chinadaily.com.cn
 
 
主站蜘蛛池模板: 操哭美女 | 成人黄色毛片 | 国产精品自在欧美一区 | 久草在在线视频免费 | 男女在线免费视频 | 久久国产精品视频 | 欧美高清成人 | 日韩中文字幕视频 | 国产日韩欧美一区二区三区综合 | 二区三区在线 | 亚洲精品国产字幕久久不卡 | 国产91精选在线观看网站 | 一级一片在线播放在线观看 | 久久91视频| 最新国产成人综合在线观看 | 欧美亚洲综合另类在线观看 | 国产在线精品一区二区三区 | 一本色道久久88亚洲精品综合 | 在线成人a毛片免费播放 | 91青草久久久久久清纯 | 男人的天堂亚洲 | 欧美区一区二 | 亚洲伊人久久综合影院2021 | 国产精自产拍久久久久久蜜 | 国产精品久久久久久久久福利 | 免费a级毛片大学生免费观看 | 国产精品福利视频萌白酱 | 国产资源在线免费观看 | 日韩美女一级毛片a | 香港一级纯黄大片 | 在线播放一区二区三区 | 精品视频一区二区三三区四区 | 成人一级| 欧美三级欧美一级 | 手机看片国产免费久久网 | 久久日本三级韩国三级 | 欧美国产高清欧美 | 国产欧美日韩免费一区二区 | 中文字幕成人在线 | 成人男女啪啪免费观看网站 | 手机在线看福利 |