日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

USEUROPEAFRICAASIA 中文雙語Fran?ais
Lifestyle
Home / Lifestyle / News

Laying Garbage to waste

By Li Yang | China Daily | Updated: 2014-10-07 08:28

Laying Garbage to waste

Visitors walk past Lujiashan, the largest waste incenator in the world, on July 29. [Photo by Wang Wei/For China Daily]

The world's largest incinerator will ensure that Beijing's household garbage is not only disposed of in an eco-friendly manner, but also produces electricity for the energy-hungry city, writes Li Yang.

The world's largest waste incinerator will start running at full speed next month after one year's trial run. The incinerator in Beijing's western suburb can process 3,000 tons of household garbage a day, that is, one-sixth of the daily domestic waste generated in the city.

The Lujiashan incinerator has been built by Shougang Group, one of China's largest steel producers, in a deserted limestone quarry. Before Lujiashan started its trial run, more than 80 percent of Beijing's household garbage was consigned to more than 30 landfills spread around the city, with about 10 percent being processed to make fertilizers.

The Lujiashan incinerator will receive sorted household garbage from Dongcheng, Xicheng, Fengtai, Shijingshan and Mentougou districts of Beijing, which will first be dumped into a 30-meter-deep treatment "pond" where it will be left to ferment for a week. The pond, making good use of the limestone quarry, can hold up to 40,000 tons of waste at a time.

The custom-built air-blast system will keep the atmospheric pressure in the pond lower than that outside and thus keep the smell of rotting garbage locked within the pond and spare the neighborhood of the stink. Also, the "fermentation" will increase the waste's heat generation capacity by a large margin.

After the garbage "ferments", mechanized buckets will dump it into four incinerators, which are actually waste heat boilers. The incineration will reduce the volume of the garbage by about 90 percent within a short time and the heat generated by the incineration can be transformed into electricity through two 30-megawatt air-cooling turbo-powered generators.

Liu Yangsheng, a professor of environmental sciences at Peking University, says that if the waste's heat value is more than 4,300 kilo Joules per kilogram, the waste can be incinerated to generate electricity.

Since the average heat generating capacity of Beijing's household garbage is about 6,800 kilo Joules per kg, it can become a good source of energy for the power-thirsty city. In fact, Lujiashan can generate 420 million kilowatt hour of power in a year, which is equal to that generated by 140,000 tons of standard coal. Moreover, the more than 800 C temperature can eliminate dioxin, a carcinogenic pollutant and a byproduct of outmoded waste incineration technology, from the emissions.

Previous 1 2 Next

Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
主站蜘蛛池模板: 亚洲精品在 | 亚洲欧美另类日韩 | 国产精品久久人妻无码网站一区无 | 久久久精品视频免费观看 | 亚洲一区二区在线播放 | 免费a视频在线观看 | 久久久久久久99精品免费观看 | 瑟瑟网站免费网站入口 | 亚洲国产日韩欧美综合久久 | 草草久久久 | 免费一级毛片在线播放视频 | 在线观看日韩 | 国产精品第八页 | 国产日韩欧美精品 | 边摸边吃奶边做激情叫床文章 | 色片免费网站 | 婷婷久久五月天 | 艹逼网站 | 91视频麻豆视频 | 亚洲香蕉久久一区二区三区四区 | 亚洲品质自拍视频 | 激情五月婷婷 | 美国三级日本三级久久99 | 六月色婷 | 欧美v在线| 成人97在线观看免费高清 | 欧美日韩精品一区二区三区视频 | 六月婷婷久久 | 35pao强力打造 | 亚洲久草视频 | 欧美一级片在线播放 | av国产精品 | 在线中文天堂 | 国产色司机在线视频免费观看 | 国产浮力第一浮力 | 伊人久久99亚洲精品久久频 | 欧美在线一级片 | 欧美日韩中字 | 国产99久久精品一区二区 | 欧美成人精品欧美一级乱黄 | 99视频有精品视频高清 |