Tag Archives: water management

Babylon expands mine water management activities with RWG acquisition

Environmental, Mining equipment, Mining mergers and acquisitions, Mining services, Water management, , , , , ,

Babylon Pump and Power says it has executed a business asset acquisition agreement to acquire the operational assets of Resource Water Group (RWG) for A$3 million ($2.1 million) in a transaction that it hopes will result in more early-stage project engagement with mining companies.

Established in 2011 and based in Canning Vale, Western Australia, RWG provides bore field test pumping equipment and related data collection services as well as a range of water management disciplines to the mining industry. These services are critical to water users across the resources sector as they develop water management strategies in line with their environmental obligations and operational requirements, it says.

Back in June prior to the announced acquisition, Babylon said it was planning on expanding its mine water management activities.

Under the business acquisition agreement, Babylon will acquire the operational assets (independently valued at over A$2 million), goodwill, contracts and intellectual property of RWG. RWG’s founder, Frank Ashe, has entered a services contract and will become a member of the group’s senior executive. Three other RWG employees will also commence employment with Babylon.

Babylon Managing Director, Michael Shelby, said: “This is an exciting and well-priced acquisition for Babylon which will significantly expand our water management activities. The acquisition broadens our offering to new and existing clients, brings in additional technology and business development capability whilst complementing our existing business.

“RWG’s test pumping services are considered an early-stage project engagement service and have consequently led to relationships with a range of well recognised global and Australian mining companies including BHP, Rio Tinto, FMG, Roy Hill and Newcrest Mining. We expect that these relationships will also facilitate rental opportunities for our specialist pump rental assets, supporting the Company’s renewed strategic focus on multi-disciplined water management equipment and services.”

Babylon will move into new, purpose-built premises around November of this year and RWG will co-locate its assets and operations into the new facility.

RWG’s Ashe said: “This is an exciting time to be joining forces with Babylon as it builds into a diversified water services business. I am looking forward to joining the team and contributing to strategic growth initiatives and capitalising on RWG’s network of relationships.”

Tetra Tech expands water management practice with Piteau Associates buy

Mining mergers and acquisitions, Sustainable mining, Water management, , , , , , , ,

Tetra Tech, a provider of high-end consulting and engineering services, has further expanded its sustainable water management practice with the addition of Piteau Associates, based in Vancouver, British Columbia.

Established in 1976 by Dr Douglas Piteau, the firm is a global leader in sustainable natural resource analytics including hydrologic numerical modelling and dewatering system design. Its staff pioneered the development of discrete element numerical models to simulate rock mass behaviour for slope design and hydraulic integrity, Tetra Tech said.

“With the majority of its staff having advanced degrees, the Piteau team solves the natural resource industry’s most complex geotechnical and water-related challenges and has been an important contributor to key industry textbooks, scientific publications, and best practice guidelines involving applied rock mechanics, hydrogeology, hydrology and geochemistry,” the company said. “Recognised global experts on the Piteau Associates team serve on numerous technical review boards and audit and assurance teams on projects around the world.”

Dan Batrack, Tetra Tech Chairman and CEO, added: “Tetra Tech has a long history of Leading with Science® through the application of advanced analytics to water management. The addition of Piteau Associates further expands our expertise in the specialised analysis of sustainable water management and geotechnics for our commercial resource management clients.”

Mark Hawley, Piteau Associates Chairman and CEO, said: “We are excited to join the Tetra Tech family, and to add our expertise to Tetra Tech’s comprehensive scope of engineering and consulting services. We share Tetra Tech’s strong commitment to providing high quality, sustainable and practical solutions based on sound engineering, and focus on projects and developing long-term client relationships. By joining Tetra Tech, we can collaborate on highly technical multi-disciplinary projects, further our global growth strategy, and provide new opportunities for our team and a broader scope of services to our clients.”

Piteau Associates is joining Tetra Tech’s Commercial/International Services Group.

SNC-Lavalin to expand tailings and water management business with appointment of Trevor Sparks

Environmental, Mining people, Sustainable mining, Water management, , , , ,

SNC-Lavalin has appointed Dr Trevor Sparks as Global Vice-President of Tailings and Water Management for the company’s Mining & Metallurgy business.

Trevor is based in the UK and will lead the expansion of the company’s tailings and water management global business in the mining industry, working in collaboration with teams around the world.

Cesar Inostroza, Mining & Metallurgy Senior Vice-President, SNC-Lavalin, said: “We are excited to welcome Trevor to the team. He brings a wealth of proficiency and knowledge and will play an important role in leading and deploying our world-class expertise aimed at helping our clients solve their tailings and water challenges in a sustainable manner.”

Dr Sparks has 30 years of experience in fluid engineering, solid-liquid filtration and mineral processing, as well as project execution, sales & marketing and consultancy. This includes roles with Outotec and, most recently, Metso Outotec.

He has a recognised track record of delivering operational excellence in leading the expansion of businesses and markets, according to SNC-Lavalin. He has guided and delivered numerous international projects, working with multidisciplinary teams to achieve significant increases in business performance.

Cedric Minería selects CDE EvoWash wet processing tech for Buin sand, gravel ops

Energy minerals, Mineral processing, Mining equipment, Mining services, , , , , , , , , , , , , , , , , , ,

Chilean mining and aggregates company, Cedric Minería, has announced a major overhaul of its aggregates business following a significant investment in advanced wet processing technology from CDE, the Belfast-based company says.

The family business, which expanded into aggregates production in 2003, has revealed plans for a new wet processing solution at its Buin operation.

Established in 1981, Cedric Minería specialised in the production of calcium carbonate and sulphur products before diversifying its interests and launching its silica operation, Mina Nancy, near the city of Calama in Antofagasta Region.

It soon secured listing as a strategic supplier of silica to state-owned copper mining company Codelco for its copper smelting plant in Chuquicamata, northern Chile.

Following the success of its silica business, Cedric Minería soon after commissioned its first aggregates processing plant in Buin which supplies the local market with a range of washed sand and gravel products for pre-cast concrete, asphalt, pipe bedding and more.

This summer, CDE will commission the EvoWash™ sand wash plant and an AquaCycle™ water management system at the company’s Buin site, replacing their existing washing screws.

Using CDE cyclone technology, the new plant will enable Cedric Minería to produce two grades of high quality, in-spec fine sands: 0-5 mm and 0-8 mm.

A compact, modular sand washing system, CDE’s EvoWash screens and separates the smaller sand and gravel fractions through an integrated high-frequency dewatering screen, sump and hydrocyclones which provide control of silt cut points and eliminates the loss of quality fines with significant commercial value.

An alternative to water extraction and the costly process of pumping water to the plant, CDE’s AquaCycle significantly reduces costly water consumption by ensuring up to 90% of process water is recycled for immediate recirculation, the company says. It helps to accelerate return on investment by maximising production efficiency, minimising the loss of valuable fines and reducing water and energy costs. A single, compact and user-friendly unit, it can be applied to high and low tonnages across many market sectors.

Cedric Minería owner, Cedric Fernández, says the investment in CDE technology is a significant step forward for the company.

“We’re making a huge technological leap forward with this new plant. Cedric Minería branched into the aggregates business almost two decades ago and throughout that time we have operated a traditional system,” Fernández said. “The existing plant has served us well, but we need a modern solution that is future-ready. Our latest investment in CDE wet processing technology represents the beginning of a new chapter for our company.”

Fernández says the COVID-19 pandemic had a significant impact on the construction industry but anticipates strong future demand for sand and aggregates to support the country’s public works investments.

CDE Business Development Executive, Gustavo Brasil, says older technology is very much under the spotlight for materials processors as they work to remedy inefficiencies.

“Recognising the limitations of the existing setup, the team at Cedric Minería are setting out on an ambitious transformation project to replace a traditional processing plant with a much more advanced and efficient technological solution,” he said.

The CDE solution engineered for Cedric Minería will revolutionise its current process, he added.

“CDE’s Evowash solution will enable Cedric Minería to produce superior fine sands with less moisture content while the AquaCycle water management system will deliver massive efficiency gains by recycling process water and driving down operational costs,” he said.

Tronox boosts mineral sands dredging process with help of IPR-supplied SlurrySucker

Comminution of minerals, Industrial minerals, Mineral processing, Mining equipment, Mining safety, Mining services, Water management, , , , , , , , ,

Following a successful one-week trial, heavy minerals company Tronox Mineral Sands has taken delivery of a SlurrySucker dredging unit from Integrated Pump Rental.

The SlurrySucker will remove sand from the process dams near the Tronox mining operation on South Africa’s West Coast. This installation enhances the safety and efficiency of the dredging process, which previously had to be carried out manually by a team of underwater divers, IPR said.

“The pumping capacity of the dredging unit will ensure optimal operation of Tronox’s dams which need to be kept at the required storage volumes at all times,” Ruaan Venter, Rental Development Manager at Integrated Pump Rental, said.

The dredging unit will assist Tronox in regularly cleaning sediment from its process dams, reducing the risk of pump blockage or failure. This solution aims to provide rapid results on a cost-effective basis, while the remote operation raises safety levels, the company added.

To withstand the corrosive effects of salt water, the SlurrySucker has been equipped with a stainless steel casing as well as stainless steel components including wear plates and impellers. The units were manufactured at Integrated Pump Rental’s facility in Jet Park, Johannesburg, South Africa.

The SlurrySucker dredging unit comprises a floating barge with an electric hoist operated from the side of the dam. This ensures a high level of safety with the barge being operated remotely, including the lifting and lowering of the pump. At Tronox, the SlurrySucker is designed to pump 150 cu.m/h of sediment – with a solids content of 50% – back to the thickener in the plant.

“The electrically-driven unit also makes sure that there is no risk of contaminating the water in the dams with diesel or oil leakage,” Venter says. The compact unit is easy to transport between the dams requiring dredging, making for optimal usage of the equipment.

With its local manufacturing capability and technical support offering, Integrated Pump Rental says it is well equipped to maintain the SlurrySucker out of its Johannesburg facility.

Siltbuster delivers modular water treatment system to Anglo’s Woodsmith mine

Industrial minerals, Mineral processing, Mining equipment, Mining services, Sustainable mining, Water management, , , , , , , , , ,

Siltbuster, the water treatment specialist, says it has designed and installed a surface water treatment solution for Anglo American at its Woodsmith polyhalite mine on the North Yorkshire coast of England.

The polyhalite deposit can only be accessed from within the North York Moors National Park, so extensive steps have been taken to limit the environmental impact of the mine, using innovative design solutions and engineering ingenuity, Siltbuster says.

The mine infrastructure has been designed to be sympathetic to its location: the number and size of the buildings has been reduced to a minimum, which, together with extensive landscaping and planting, will ensure the site is screened and blends in with the surrounding area. At the same time, mined ore will only be transported underground, in recognition of the sensitivity of the area, in a 37 km tunnel to the materials handling facility on Teesside, eliminating the need for surface transportation.

“This careful stewardship and protection of the surrounding environment has also extended to water management on site,” Siltbuster said. “During construction, the collected surface rainwater via the on-site collection drainage system can contain an elevated level of suspended solid particles which require removal prior to discharge back into the natural water courses to ensure there is no environment impact. The collected surface water passes through a series of lagoons to remove the gross solids, but the water can still contain elevated level of suspended clay particles that do not settle under natural gravity.”

Anglo American has, therefore, invested in a treatment system, with a high degree of system automation, located within a structure that blends in with the surrounding scenery, in line with the overall project design, the company says.

With the new modular treatment system in place, including 2no. HB200R Lamella Clarifiers with Mix Tanks, over 5.7 million litres of water can be treated each day. Continuous online monitoring of flow, pH and suspended solids of the treated surface water ensure discharge criteria are being met consistently before releasing back into the natural water course, Siltbuster explained. If any of the monitoring parameters are above the trigger level, the system will shut down automatically with an instant text alert submitted to the site operators.

Rob Staniland, Manager for Environment and Permitting at the Woodsmith Project, said: “It is essential that we have robust, reliable systems and partners to help us meet our stringent planning conditions and environmental safety targets. Siltbuster have proven to be just that, providing us with a great solution to helps us deliver on the minimal impact ethos of the whole project.”

Louis Pang, Project Manager, at Siltbuster, added: “The new treatment plant has not only provided an effective and easy-to-operate system, with the system design being modular and built off-site, the on-site construction and installation time was kept to a minimum, thereby minimising the environmental impact, an important environmental criteria set by Anglo American.”

TAKRAF dry-stacked tailings test work boost for Los Andes Copper’s Vizcachitas project

Base metals, Comminution of minerals, Environmental, Mineral processing, Mineral project development, Mining services, Sustainable mining, Water management, , , , , , , , , , ,

Los Andes Copper says it has received additional positive results from the ongoing prefeasibility study (PFS) metallurgical test work at its Vizcachitas project in Chile.

These results show improved filtration rates for both the fine and coarse fraction tailings compared with previous testing, it said, reinforcing the decision to adopt dry-stacked tailings at the project.

An October press release regarding PFS metallurgical test work carried out by SGS demonstrated that the Vizcachitas tailings were amenable to being filtered and dry-stacked.

These same coarse and fine representative tailings samples were sent to the TAKRAF laboratories for further settling and filtration assessments. Los Andes said the TAKRAF work tested various settling and filtration parameters, including those previously tested.

The studies demonstrated that for the coarse fraction vacuum filtration, the rates improved from 1.9 t/h/sq.m to 3.4 t/h/sq.m when compared with the previous results. For the finer fraction, the settling velocities improved from 8.4 m/h to 16 m/h and the pressure filtration rates improved from 0.6 t/h/sq.m to 0.7 t/h/sq.m. The expected cake moistures for both filtration technologies were 15%.

These positive results mean that the Vizcachitas project, processing 110,000 t/d of ore, would only need to use eleven standard 162 sq.m belt filters and four 2.5 m x 2.5 m pressure filters for the tailings dewatering operation, Los Andes said, noting that other operations in the world were successfully operating with similar filter arrangements.

“Tailings filtration reduces water consumption by 50% when compared to thickened tailings disposal alternatives,” Los Andes said. “Furthermore, filtered tailings can be handled by trucks, conveyors and shovels, eliminating the need for the construction and operation of a tailings dam.

“The adoption of this technology puts the Vizcachitas project at the forefront of the environmentally responsible practices being adopted for the future of sustainable mining globally.”

Vale partners with NORCAT for mining innovation challenge

Base metals, Communications in mining, Environmental, IoT, Metallurgy, Mineral processing, Mining safety, Mining services, Mining software, Water management, , , , , , ,

NORCAT and Vale have teamed up to launch the NORCAT Open Innovation Challenge to, they say, facilitate and enhance Vale’s capabilities to bring new, state-of-the-art technologies into its mining operations and accelerate the rate of technology adoption in the global mining industry.

As current global events disrupt regular business operations and the global mining industry continues to undergo a digital transformation, mining companies around the world are looking to become more agile and resilient by embracing digitalisation and investing in technologies related to safety, sustainability and operational efficiency.

The NORCAT Open Innovation Challenge is looking to identify technology-enabled solutions to three common problem areas identified by Vale. Specifically, the NORCAT Open Innovation Challenge is focusing on the issues of smelter acid management, underground operator alertness and excessive water and run of material in underground mines.

“As the global ‘one-stop-shop’ for all that is the future of mining technology, our goal is to facilitate and encourage innovative and disruptive thinking within the mining technology ecosystem,” Don Duval, NORCAT CEO, says. “As the mining industry continues to transform, it requires new levels of openness, innovation and collaboration. Challenge-based initiatives have proven to be effective in uncovering new ideas and different points of view, and we are excited to partner with Vale to further the acceleration, adoption and deployment of emerging technologies that are poised to transform the global mining industry.”

The NORCAT Open Innovation Challenge is open to innovative start-ups, entrepreneurs and problem solvers from across Canada. Successful applications must have the capacity and confidence to develop and deploy a proof-of-concept inside one of Vale’s operations in Sudbury, Ontario, by March 2021. As part of the process, Vale will provide technical oversight and feedback to winning entries over a four-month period to prepare for product development and testing prior to completion.

Anthony Downs, Manager of Digital and Information Technology for Vale’s Base Metal Operations, said: “At Vale, we are obsessed with safety and risk mitigation. Open innovation is a key enabler that allows us to rapidly identify and trial novel risk management solutions. When they prove effective, we move them to implementation within our operations at an accelerated pace.

“Vale is pleased to partner with NORCAT on this challenge and looks forward to reviewing the innovative solutions the challenge inspires.”

As part of its mandate, NORCAT continues to identify and engage with mining technology companies from around the world to support the development and adoption of innovative technologies poised to transform the global mining industry.

This is not the first time NORCAT and Vale have teamed up. Earlier this year, the two announced plans to develop and deploy an innovative blended learning program that, they said, would transform how the global mining industry trains and educates its workforce.

IMDEX SRU technology delivering water savings for drillers

Environmental, Mineral exploration, Mining equipment, Mining services, Sustainable mining, Water management, , , , ,

With the search for new mineral discoveries increasingly occurring at depth and undercover in remote locations, the pressure to find better ways to reduce water consumption during exploration drilling programs is vital as companies meet their environmental, social and governance obligations.

Global mining technology company IMDEX says it is meeting the challenges with solids removal units (SRUs) that can reduce water consumption by up to 80% during drilling. The savings mean less draw on water from sources including rivers, dams or underground aquifers, and a reduction in water transported to the drill sites.

Adoption of the technology has increased significantly in Europe to meet strict environmental guidelines, along with North America and some South American countries, IMDEX says. IMDEX SRUs Global Product Manager, Chris Havenga, said there had also been a dramatic increase in adoption in Africa in the past two years.

He said mining companies were increasingly directing drilling contractors to use SRUs because of the environmental benefits.

As an example, Havenga said a hole to be drilled to 500 m would require a ground sump with a capacity of 22,500 litres, but this would be reduced to 5,000 litres by using an SRU: a water saving of 77%.

Other benefits include a 75% reduction in drilling fluid consumption; water cartage and disposal costs reduced by up to 75%; and a saving of up to A$10,000 ($7,132) on digging and remediating sumps.

“With minerals being deeper and underground, deeper holes need to be drilled so holes of 1,000 m or more are no longer uncommon,” Havenga said. “Using the traditional sump method alone means increasing the number of sumps and the footprint of the drilling operation. The centrifuge in our SRUs means we speed up settling speeds and contractors can drill the same hole with less fluid and less solids retained in the fluids.”

Other benefits include improving relationships with land owners, gaining access to sensitive or remote areas, and reducing the risk to waterways and local wildlife.

BQE Water to manage and treat water at El Mirador copper-gold mine

Base metals, Environmental, Mine operation news, Sustainable mining, Water management, , , , , , , , , , , ,

BQE Water has signed two agreements with EcuaCorriente SA (ECSA), an Ecuador subsidiary of a Chinese consortium, to prepare an adaptive mine water management plan and to improve the design of an existing water treatment plant for the El Mirador mine the consortium owns and operates in south-eastern Ecuador.

The first contract is for an assessment of the water treatment plant and a water management plan that is adaptive over the life of the mine based on water flow and quality that will be monitored as part of the plan.

Added to this is a second contract to provide technical support for implementing immediate improvements in the engineering design and operation of the existing water treatment facility to increase its robustness and reduce both project risks and long-term operating costs, BQE said.

Qiaofeng Xu, the Project Director for ECSA, said: “We selected BQE Water for their unique technical expertise, their successful track record in the design and operation of large water treatment plants for major Chinese mining producers, and for their ability to support project execution utilising personnel from their South American, China and Canadian offices.”

Songlin Ye, Vice President for Asia at BQE Water, said: “Our ability to do business with large Chinese metal producers and the success of our water treatment operations in China were instrumental in securing these new contracts. The El Mirador project is significant for BQE Water as it showcases our unique strength to be a trusted water services provider for mining projects with Chinese interests at a time when Chinese investment in global mining projects can be expected to grow.”

Oscar Lopez, General Manager for Latin America at BQE Water, said the El Mirador project represents the first large mining project where the company will be the technical lead for the overall site water management plan rather than focus only on water treatment.

“And, with the long time horizon for water treatment at El Mirador, the current contracts may provide an opportunity for further cooperation between our two companies to support EcuaCorriente to reduce life cycle costs and conduct mining operations in an environmentally friendly manner at El Mirador,” Lopez said.

The El Mirador mine, owned by a consortium consisting of China Railway Construction Corporation and Tonglin Nonferrous Metals Group, is a large copper-gold porphyry project that was brought into production in 2019. It is expected to produce an average over 200 MIb (90,718 t) of copper and 60,000 oz of gold annually for the next 30 years.

The project site is located in a net positive water balance environment and will require ECSA to treat and discharge mine water into the environment throughout the project life, BQE said. “As production ramps-up and the mine footprint increases, both the volume of water requiring treatment and the water composition will change.”