Chinese scientists use rice straw to desalinate seawater

Source: Xinhua| 2019-04-18 13:37:03|Editor: Li Xia
Video PlayerClose

BEIJING, April 18 (Xinhua) -- Chinese scientists have developed an innovative desalination technology that uses rice straw and sunlight for clean water production.

Solar steam generation is considered to be a promising strategy for purification of wastewater and seawater. Scientists from the Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences have developed a solar steam-generation device from wasted rice straw.

The device is composed of a photothermal membrane and water pumps. The leaves of rice straw are carbonized and composited with bacterial cellulose to function as a photothermal membrane and the lower culms of straw are designed as water pumps.

The rice straw-derived solar still achieves a daily clean water yield of 6.4 to 7.9 kg per square meter on sunny days and 4.6 to 5.6 kg on cloudy days. The water yielded reached safe drinking water standards with over 99.9% of saline ions removed.

Besides seawater desalination, the device can also be used for extracting clean water from various water-bearing areas such as tidal flats, wetlands and marshes.

The research was published in the journal ACS Applied Materials and Interfaces.

TOP STORIES
EDITOR’S CHOICE
MOST VIEWED
EXPLORE XINHUANET
010020070750000000000000011100001379875601
国产无码在线观看免费在线,37pao国产成视频,日韩一区二区视频在线,国产国产人免费人成免费视频麻豆
亚洲码一区二区三区 | 亚洲Ⅴa制服丝袜一区二区三区 | 亚洲男人综合久久综合天堂 | 中文字幕一级视频网站 | 日韩欧美一区二区大胸视频 | 亚洲成色在线香蕉 |