HTTP/1.0 200 OK Cache-Control: private, must-revalidate Content-Type: text/html; charset=UTF-8 Date: Tue, 24 Nov 2020 23:15:12 GMT Expires: -1 Pragma: no-cache 285彩票网
ADVERTISEMENT
2 /3 FREE ARTICLES LEFT THIS MONTH Remaining
Chemistry matters. Join us to get the news you need.

鲁纳尔说:这颗钻石可能产于南非的普列米尔矿山,现称库里南矿场。”

We will continue to transform government function.
[im'pru:vm?nt]
Everyone knows about Google Analytics, but are you using Google Webmaster Tools? As a marketer, I view Webmaster Tools as one of the most important free tools at my disposal. You want to get found on Google, right? Why not listen to what Google is telling you via Webmaster Tools?
Age: 50

ENJOY UNLIMITED ACCES TO C&EN

Environment

Researchers Turn Fish Waste Into A Coffee-Scented Biofuel

Environment: Hydrothermal carbonization transforms seafood discards into hydrochar, a carbon-rich solid

by Deirdre Lockwood
December 15, 2015

CRISPY SEAFOOD
Credit: Energy Fuels
Scanning electron micrographs show hydrochar produced from fish waste (left) and shrimp waste (right).

Before that beautiful salmon filet lands on your plate, a lot of less appetizing stuff gets stripped away: By one estimate, the global seafood industry produces 64 million metric tons of waste each year. A new study suggests a potentially sweeter fate for all those heads and guts: They can be turned into a coal-like substance called hydrochar, which could be used as fuel or added to soil to improve fertility and sequester carbon (Energy Fuels 2015, DOI: 家居行业五大安全隐患曝光 6企业发“良心”倡议).

China's tourism officials are looking to reverse the trend of declining inbound visitors in 2014--possible, experts say, if it revamps its outdated tour packages and lowers ticket prices.
operate
4.Virtual Assistant: 17.6 percent increase
学习有难度的课程
Nigel Farage, former leader of the UK Independence party, has not advanced so far because it has proved harder to capture the UK’s party-based institutions than it is the US presidency.
As a result of the country’s strict policies, some of the underwear brand's most famous models are unable to appear in its biggest event of the year with Gigi Hadid announcing that she won’t be attending on Twitter last week.
Chicago-based rival AT Kearney is also preparing for a change at the top, with a vote to replace Johan Aurik, who has already served the maximum two terms as managing partner, due to take place in the first quarter of 2018. His replacement will be expected to focus on how to pull AT Kearney out of the ranks of mid-sized players.
大力促进就业创业。
2014年至2016年期间,虽然全球增长数据不错,但全球温室气体排放量持平,所有人都为此欢欣鼓舞。问题是,其原因并非是所有人庆祝的全球经济效率提升,而仅仅是中国北方的经济增长放缓。随着这部分地区在2017年恢复了经济增长势头,二氧化碳排放量开始再次上升。
In the meantime, here’s a fun song that’s been written by one of my readers, Libby Russell that all football widows will identify with. Enjoy! Thank you for sharing, Libby. It’s brilliant!
包括中国移动、阿里巴巴和腾讯的16家中国企业进入了该榜单的前100名。
The GDP of Southwest China's Chongqing Municipality grew by 10.7 percent in 2016, hitting 1.76 trillion yuan. Southwest China's Guizhou province and Tibet autonomous region posted 10.5 percent and 10 percent growth respectively.
That creates an identity vacuum to be filled.

FISHING FOR FUEL
[+]Enlarge
Credit: Shutterstock
Researchers turned fish and shrimp waste into a potential biofuel called hydrochar.
Credit: Shutterstock
Researchers turned fish and shrimp waste into a potential biofuel called hydrochar.

从2015年至2016年,美国ETF市场增长20%,而亚洲市场仅扩大10%。分析师们表示,从两个角度可以看出亚洲ETF市场的规模不及美国和欧洲:后者的市场规模是亚洲的两倍,ETF管理的资产规模为7160亿美元。
1.保险精算师
"Although it may seem counterintuitive, the best way to maximize profits over the long-term is not to make them the primary goal of the business," Mackey said in an interview earlier this year.
谎言5:你穿这条裙子真好看。说谎原因:总比说真话被别人扇耳光要好吧。
万事达公司表示,其数据反映出世界主要大城市的互联性,并追踪了商务和休闲飞机乘客的消费方式。
4. 马克·特纳四重奏(Mark Turner Quartet),《天堂里的车床》(Lathe of Heaven), ECM。这是次中音萨克斯手马克·特纳13年来第一次以领队身份推出专辑,他喜欢同小号手阿维沙伊·科恩(Avishai Cohen)奏出流畅的互动,在后波普规范中发现全新意义。他的作曲中有纯粹的神秘,由乔伊·马丁(Joe Martin)担任贝斯手,马库斯·基尔默(Marcus Gilmore)担任鼓手的节奏组亦是一丝不苟。
Better still was Iain Roberts, global managing director of the design company Ideo, who asked a question to which I hope never to hear the answer: “How to activate insights around latent mobility or multimodal needs?”
该工作室称,他们已经采取了措施,因为这个男孩拒绝删除发布在youtube上的视频,而在这个视频中他向人们介绍了如何去使用这个软件。
It also said 98 percent of government-sponsored students returned to China. Government-sponsored students who study abroad have chosen to pursue disciplines most needed in China, including engineering, the pure sciences, agriculture and medical science.
可口可乐首席运营官詹姆斯?昆西(James Quincey)表示:“我们并未真的假设今年余下时期中国的形势会好转。”他表示,今年第二季度该公司在华果汁销售额降幅达到两位数,可口可乐饮料销售额降幅为个位数。
持续推进大众创业、万众创新。

So she and her colleagues ground up samples of fish and shrimp waste from a local market, and heated them by microwaving the waste in quartz vessels at high pressure and 150 °C for an hour. But they obtained no hydrochar, not even when they treated the waste with acid first. So Kannan tried again, first treating the waste for 16 hours with three commercially available enzyme products used in a previous study that made hydrochar from food waste (Bioresour. Technol. 2014, DOI: 10.1016/j.biortech.2014.03.022). The enzymes, including lipase and protease, hydrolyze complex macromolecules in the food waste into simpler compounds such as glucose. This time, it worked: The team recovered 29% of the dry weight of the fish waste as char, and 36% of the shrimp waste. The char smelled like coffee, Kannan says; she suspects this may be a sign of the Maillard reaction, the reaction between amino acids and carbohydrates that takes place when food is browned.

在美国股市整体被“踩下刹车”的情况下,特斯拉的股价还在一路狂飙。自今年年初至今,其股价已经上涨了80%,目前每股约262美元,接近该公司有史以来的最高值,市值达到320亿美元。
The End of the Road
Dachis says: Strong financial performance combined with a slew of new features made LinkedIn a magnet for positivity in 2012. Positivity like this could help the company move from stern business network to lively communications platform in 2013.

S. Kent Hoekman, an environmental scientist at the Desert Research Institute in Reno, Nev., says he is impressed with the researchers’ application of an existing technology to a new problem, and the use of enzymes to help carbonize the seafood waste. However, he notes it would be physically and economically challenging to scale up the process for real waste streams, especially because the required enzyme treatment would be expensive and slow. There’s no significant market in the U.S. for biocoal products like hydrochar, but that could change with policies like a potential carbon tax, he says.

X

Article:

环保部批评多地房产项目破坏生态环境

Comments
Martin Hitzl (December 17, 2015 3:35 AM)
Higher temperatures and mixing seafood waste with other biomass can help to autocatalyse the Hydrothermal process. Ingelia, a Spain based company, is introducing industrial-scale Hydrothermal technology for treatment of Organic fraction of MSW.
Joe Valko (December 17, 2015 9:11 AM)
Since this processing to form hydrochar appears to eliminate the objectionable odor, in view of the high nitrogen and probably reasonable phosphorous content, it seems that its use as a soil enricher might be a better avenue for its use than as a fuel. A higher residual water content in the hydrochar could be tolerated if used as a soil enhancer. Before it is considered for use as a fuel, it would be a good idea to determine the nitrogen oxides content from its burning in air.
Ed Drescher (December 17, 2015 1:30 PM)
Where did the other two thirds of the dry weight go?
Deirdre Lockwood (December 28, 2015 3:15 PM)
The researchers refer to the remainder as "bio-crude liquor" -- a dark brown liquid of pH 7. They plan to characterize it and determine whether chemicals of interest could be extracted from it.

Leave A Comment

*Required to comment