日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

Make me your Homepage
left corner left corner
China Daily Website

China city's waste heat cuts pollution

Updated: 2013-11-20 22:08
( Xinhua)

SHIJIAZHUANG - For those already choking on air in north China, the central heating season could mean more wheezy days in the coming months.

With this in mind, Shijiazhuang -- one of the most polluted cities -- is trying to to cut pollutants released by heating.

About 300 kilometers southwest of Beijing, Shijiazhuang is capital of Hebei Province. Hebei claimed seven of the 10 most polluted cities in the country in the third quarter of the year.

Apart from converting coal-fired boilers to gas, Shijiazhuang has piloted utilizing ?"spare" heat in industrial waste water to warm a community covering 100,000 square meters.

The program in Lijingwan uses effluent from a refinery to warm clean water before the clean water is heated again by efficient electric boilers in basements. The combination of hot industrial waste water and efficient ?boilers can cut energy consumption by 44 percent, the local heating office said.

For the Lijingwan neighborhood alone, that means 868 tonnes of coal could be saved in a single winter.

"We used coal boilers before, but they were not hot enough, so we had to buy electric radiators," said Xie Yanru, a resident of Lijingwan. "Now the new system keeps the rooms warm and at stable temperature, and we don't need to pay extra fees."

The heating office in Shijiazhuang is optimistic. Industrial waste heat could help warm an area of 50 million square meters five years from now.

"It turns the waste into a gold mine," said Zhang Ye, vice mayor of Shijiazhuang, "and reduces emissions."

Gree Electric Appliances, who provided the equipment for the program, claim that some 275,000 tonnes of coal can be saved a year for every 10 million square meters of floor area, if coal boilers are replaced. The new method also substantially cuts emissions of carbon dioxide, sulfur dioxide, and dust.

The scheme is especially significant and feasible in northern Chinese cities like Shijiazhuang, which need to fight the smog and have mature industrial bases or sewage treatment systems that can provide the residual heat, said Zhang. Waste heat generated by local power and chemical plants is enough for a floor area of 200 million square meters.

Earlier this month, the heating office of Jinan, capital of eastern Shandong province, announced its own similar pilot program. The Drainage Group of Beijing has a similar program in the Olympic Village.

 
...
Hot Topics
A sailor from British Royal Navy destroyer HMS Daring tries to catch a mooring line to dock in the north side of the bund at Huangpu River in Shanghai December 10, 2013.
...
...
主站蜘蛛池模板: 九九超碰| 麻豆久久精品 | 欧美日韩一级二级 | 99精品久久久 | 日本欧美日韩 | 午夜精品久久久久久久 | 蜜乳av一区二区 | 日韩一级免费毛片 | 成人深夜网站 | 国产成人网| 成人观看免费视频 | 成人午夜免费在线观看 | 国产欧美精品区一区二区三区 | 精品久久一区二区 | 国产精品成人av性教育 | 午夜爽爽爽男女免费观看 | 大陆一级片 | 天天爽夜夜爽夜夜爽精品视频 | 69国产精品 | 欧美一级爱爱 | www久久久久久 | 爽天天天天天天天 | 欧美日韩第一页 | 国产精品久久久久久久妇 | av爱色 | 欧美成人三级 | 国产一区二区三区网站 | 亚洲黄色片在线观看 | 国产一区二区三区在线看 | 伊人久久精品 | 欧美高清视频一区二区三区 | 毛片一级在线观看 | 亚洲国产成人精品女人久久久 | 亚洲第一在线视频 | 国内精品小视频 | 色大师av| 国产做爰xxxⅹ高潮视频12p | 欧美www| 久热综合| 黄色一级片a| 天天干天天干 |