The action plan, jointly issued by the National Development and Reform Commission (NDRC) and the Ministry of Natural Resources, is expected to promote the large-scale utilization of seawater desalination and ensure the safety of water resources in coastal areas.
China will invest in new desalination plants over the 2021-2025 period and raise capacity to 2.9 million tonnes a day in a bid to boost water supplies, the country’s state planning agency said in a new “five-year plan” for the sector.
As much as 1.25 million tonnes per day of new capacity will be commissioned over the period, including 1.05 million tonnes in coastal cities and 200,000 tonnes in “island regions,” the National Development and Reform Commission said on Wednesday.
SHIJIAZHUANG, Dec. 16 (Xinhua) — A large desalination project, capable of producing 10,000 tonnes of freshwater from seawater per day, started operations on Wednesday in Tangshan City, north China’s Hebei Province.
The thermal-membrane hybrid seawater desalination project, operated by Shougang Jingtang United Iron & Steel Co., Ltd., is hailed as an industrial breakthrough in the country’s steel sector, a big consumer of water.
The new project combines the “thermal” and “membrane” approaches in seawater desalination: the former uses waste heat produced by factories to distill seawater, while the latter relies on ultrafiltration and reverse osmosis membranes, similar to household water purifiers, said Zhang Bo with the company’s energy and environmental protection department.
Senate legislation would expand COVID-19 projects with Israel to lessen dependence on China – Israel
The Senate has introduced legislation to enhance partnerships between American and Israeli companies on COVID-19 projects, thus lessening U.S. dependence on China for life-saving medications and treatments.
“You’re a great partner,” Pompeo said in an appearance with Prime Minister Benjamin Netanyahu before their meeting in Jerusalem. “You share your information, unlike some other countries that try and obfuscate and hide information. And we’ll talk about that country, too.”
US officials have questioned a China-tied company’s bid to construct a new desalination plant in Israel and have expressed concerns over the possibility of it winning the tender, Axios reported Saturday.
Hutchison Water International is one of two companies to have reached the final stage of the tender to build the Sorek B plant, set to be the largest desalination facility in the world, alongside IDE Technologies.
Beijing Capital Co Ltd, the world’s fifth-largest and the country’s second-largest water operator, reported revenue of more than 14.9 billion yuan in 2019, 20 percent up compared with the same period in the previous year. Total profit reached 1.598 billion yuan ($227.17 million), up 25 percent year-on-year.
Environmental business revenue reached 14.6 billion yuan, 98 percent of total revenue. Business relating to water affairs witnessed a year-on-year increase of 29 percent, and solid waste business was up 15 percent.
System achieves new level of efficiency in harnessing sunlight to make fresh potable water from seawater – Cambridge
A completely passive solar-powered desalination system developed by researchers at MIT and in China could provide more than 1.5 gallons of fresh drinking water per hour for every square meter of solar collecting area.
The system uses multiple layers of flat solar evaporators and condensers, lined up in a vertical array and topped with transparent aerogel insulation. It is described in a paper appearing today in the journal Energy and Environmental Science, authored by MIT doctoral students Lenan Zhang and Lin Zhao, postdoc Zhenyuan Xu, professor of mechanical engineering and department head Evelyn Wang, and eight others at MIT and at Shanghai Jiao Tong University in China.
A completely passive solar-powered desalination system developed by researchers at Massachusetts Institute of Technology (MIT) and in China could provide more than 1.5 gallons of fresh drinking water per hour for every square metre of solar collecting area.
Such systems could potentially serve off-grid arid coastal areas to provide an efficient, low-cost water source, said MIT doctoral students in a paper appearing in the journal ‘Energy and Environmental Science’.
The key to the system’s efficiency lies in the way it uses each of the multiple stages to desalinate the water. At each stage, heat released by the previous stage is harnessed instead of wasted. In this way, the team’s demonstration device can achieve an overall efficiency of 385 percent in converting the energy of sunlight into the energy of water evaporation.
It’s one of life’s most frustrating ironies that Earth’s surface is over 70 percent water, but most of that is undrinkable. Desalination is an important technology that may help unlock more drinking water, and now two independent teams have developed new types of solar-powered desalination systems using very different mechanisms.
The first of the two new designs comes from researchers at MIT and Shanghai Jiao Tong University. The team says the multilayer system has an impressive overall efficiency of 385 percent, producing as much as 5.78 L (1.52 gallons) of clean water per square meter of solar-collecting area, which is more than twice the amount produced by similar systems.
Each of the layers, arranged vertically, has an important role to play in the process. First, there’s a transparent insulating layer that lets sunlight through to a black, heat-absorbing layer. That in turn passes the heat onto several layers of wicking material, which have sucked the water up from below. The water evaporates out of that layer and strikes another surface, where it condenses and drips off to be collected.