Jun 1, 2020

Sustainability in construction: Green goals and strategies

Vinci
Bechtel
Bouygues
Skanksa
Dan Weatherley
2 min
Sustainability in construction: Green goals and strategies
Sustainability has quickly become one of the most important factors to consider in construction. We explore some of the world’s largest construction c...

Sustainability has quickly become one of the most important factors to consider in construction. We explore some of the world’s largest construction companies and their eco-focused goals.

Vinci

For well over a century, France-based Vinci has been building modern infrastructure facilities to improve daily life and mobility for all. Its ambitious vision is not only to build long-term value for its customers, shareholders, employees and partners, but also to meet vigorous sustainability goals with its environmental ambition that has been built on its manifesto. The company has promised to meet the needs of the changing world whilst helping countries negotiate the energy transition.

More details regarding Vinci’s sustainability strategies and ambitions can be found here.

Groupe Bouygues

Bouygues is well recognised in the construction industry thanks to its diverse range of active projects combined with some great initiatives. When it comes to sustainability, the company takes things very seriously. Bouygues believes that protecting the environment is an integral part of its vision of sustainable construction which has been converted into meaningful actions by its team.

More details regarding Groupe Bouygues sustainability strategies and ambitions can be found here.

STRABAG 

The European-based service and construction technology group has outlined three main points as part of tis environmental responsibility commitment plans. These include the reduction of energy use and CO2 emissions via energy and fuel management, reduction of the direct and indirect negative environmental impact during construction and continued development of processes and technologies for resource- and energy-efficient buildings.

More details regarding STRABAG sustainability strategies and ambitions can be found here.

Skanska

The Swedish-based company has always been an industry leader thanks to its wide range of construction capabilities including bridges, roads, homes, hospitals, and schools. Skanska states that it focuses on the areas of sustainability that drive the most positive contributions including health and safety, general ethics, community investment and diversity, and inclusion.

More details about Skanska’s green commitment can be seen here

Bechtel

The US-based company is delivering its projects using a ‘full-spectrum approach’ which does indeed include ambitious sustainability goals and targets along the way. From things such as minimizing waste in its offices to helping customers meet the global demand for low carbon, affordable and reliable energy, the company is putting sustainability at the forefront of its culture and operations.

More information on the company’s cleaner energy goals and offerings can be found here.

 

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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.

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