May 17, 2020

China Launches Nuclear Safety Program

energy digital
Energy
China
Nuclear
Admin
2 min
 China Launches Nuclear Safety Program
China's National Energy Administration (NEA) recently announced the launch of a series of R&D projects to improve the country's emergency...

 

China's National Energy Administration (NEA) recently announced the launch of a series of R&D projects to improve the country's emergency response capabilities at nuclear power plants.

Taking into account the lessons learned from Fukushima, the projects will improve safety-related technology in the event of another extreme disaster. Some of those developments will include the development of passive emergency power supplies, cooling water systems and passive containment heat removal systems. The projects will analyze the impact of various events and response measures, comparable to earthquakes and external flooding. They will also take measures to prevent and mitigate the use of fuel accidents.

SEE OTHER TOP STORIES IN THE ENERGY DIGITAL CONTENT NETWORK

New Material Removes Nuclear Radioactive Waste

Experts Review Japan's Nuclear Reactors for Safety

February's issue of Energy Digital has gone live!

Some of the projects will cover beyond design basis accident mitigation systems, while others will focus on hydrogen control devices and emergency rescue robots. According to the NEA, these projects are expected to be completed by the end of next year and should drastically improve the safety of China's second-generation nuclear power plant technology.

Thirteen different projects will be carried out under the China National Nuclear Corporation , China Guangdong Nuclear Power Group, the Institute of Nuclear and New Energy Technology, as well as other domestic organizations involved in the construction and operation of nuclear power plants.

Projects listed below:

1. Development of passive emergency power supply and cooling water systems

2 Severe accident prevention and mitigation studies, and experimental verification

3, Seismic capacity and beyond design basis seismic margin analysis for CANDU plants

4. Research into beyond design basis (BDB) flooding and measures for mitigating spent fuel melting

5. Analysis of multiple simultaneous external events and response measures (for Qinshan and Daya Bay sites)

6. Beyond design basis accident mitigation equipment and systems R&D

7. Hydrogen control device R&D

8. Development of emergency rescue robots

9. Development of passive containment heat removal systems and the secondary side passive residual heat removal system

10. Radioactive contamination survey and measurement technology for major nuclear and radiation accidents

11. Radioactive effluent monitoring and radiation protection research in case of nuclear accident

12. Treatment of radioactive wastewater resulting from a nuclear accident

13. Nuclear accident, radionuclide-contaminated environment and emergency repair R&D

DOWNLOAD THE ENERGY DIGITAL IPAD APP

 

Share article

Oct 19, 2020

Itronics successfully tests manganese recovery process

cleantech
manganese
USA
Scott Birch
3 min
Nevada firm aims to become the primary manganese producer in the United States
Nevada firm aims to become the primary manganese producer in the United States...

Itronics - a Nevada-based emerging cleantech materials growth company that manufacturers fertilisers and produces silver - has successfully tested two proprietary processes that recover manganese, with one process recovering manganese, potassium and zinc from paste produced by processing non-rechargeable alkaline batteries. The second recovers manganese via the company’s Rock Kleen Technology.

Manganese, one of the four most important industrial metals and widely used by the steel industry, has been designated by the US Federal Government as a "critical mineral." It is a major component of non-rechargeable alkaline batteries, one of the largest battery categories sold globally.

The use of manganese in EV batteries is increasing as EV battery technology is shifting to use of more nickel and manganese in battery formulations. But according to the US Department of Interior, there is no mine production of manganese in the United States. As such, Itronics is using its Rock Kleen Technology to test metal recoverability from mine tailings obtained from a former silver mine in western Nevada that has a high manganese content. 

In a statement, Itronics says that its Rock Kleen process recovers silver, manganese, zinc, copper, lead and nickel. The company says that it has calculated – based on laboratory test results – that if a Rock Kleen tailings process is put into commercial production, the former mine site would become the only primary manganese producer in the United States.

Itronics adds that it has also tested non-rechargeable alkaline battery paste recovered by a large domestic battery recycling company to determine if it could use one of its hydrometallurgical processes to solubilize the manganese, potassium, and zinc contained in the paste. This testing was successful, and Itronics was able to produce material useable in two of its fertilisers, it says.

"We believe that the chemistry of the two recovery processes would lend itself to electrochemical recovery of the manganese, zinc, and other metals. At this time electrochemical recovery has been tested for zinc and copper,” says Dr John Whitney, Itronics president. 

“Itronics has been reviewing procedures for electrochemical recovery of manganese and plans to move this technology forward when it is appropriate to do so and has acquired electro-winning equipment needed to do that.

"Because of the two described proprietary technologies, Itronics is positioned to become a domestic manganese producer on a large scale to satisfy domestic demand. The actual manganese products have not yet been defined, except for use in the Company's GOLD'n GRO Multi-Nutrient Fertilisers. However, the Company believes that it will be able to produce chemical manganese products as well as electrochemical products," he adds.

Itronics’ research and development plant is located in Reno, about 40 miles west of the Tesla giga-factory. Its planned cleantech materials campus, which will be located approximately 40 miles south of the Tesla factory, would be the location where the manganese products would be produced.

Panasonic is operating one of the world's largest EV battery factories at the Tesla location. However, Tesla and other companies have announced that EV battery technology is shifting to use of nickel-manganese batteries. Itronics is positioned and located to become a Nevada-0based supplier of manganese products for battery manufacturing as its manganese recovery technologies are advanced, the company states.

A long-term objective for Itronics is to become a leading producer of high purity metals, including the U.S. critical metals manganese and tin, using the Company's breakthrough hydrometallurgy, pyrometallurgy, and electrochemical technologies. ‘Additionally, Itronics is strategically positioned with its portfolio of "Zero Waste Energy Saving Technologies" to help solve the recently declared emergency need for domestic production of Critical Minerals from materials located at mine sites,’ the statement continues.

The Company's growth forecast centers upon its 10-year business plan designed to integrate its Zero Waste Energy Saving Technologies and to grow annual sales from $2 million in 2019, to $113 million in 2025.

Share article