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MINING

Modern mining needs to maintain a sustainable relationship with its environment, ensure efficiency in the use of natural resources and minimise its impact on the natural environment. Water, as a natural resource, is always one of the main challenges facing a mining project, given that, both in cases of scarcity and excess, major investment is required in a number of different areas, such as catchment, channelling, storage, treatment, distribution, evacuation, reuse and return to the water bodies.

Aqualogy provides mining companies with effective technological solutions in the design, construction and operation of facilities and infrastructure related to the complete water cycle. Its customers receive efficient responses that meet their individual needs.

Aqualogy's offering consists of four lines:

  • Specialist consultancy.
  • Design–build–operate.
  • Operation and maintenance and material supply services.
  • BOT. Financing of facilities.

Our experience in mining projects (metal, energy, natural stone and precious metal) is mainly in Latin America and Spain, where we have numerous references in all the services we offer.

Water reuse for Cosentino, Spain. 2013

Water reuse for Cosentino, Spain. 2013

Design, construction, commissioning and monitoring of process water, waste treatment and reclamation plants to supply the process with high-quality water.

These plants combine filtration, membrane and sulphate removal technologies to ensure high performance in terms of clean water production and compliance with quality standards. The project has two treatment lines: the first is for the production of 300 m³/day of technological water, with a rejection flow of less than 6% of the input water; and the second is for 100 m³/day of rejected water, which is reused in the process.

Treatment of acid mine drainage. GLENCORE, Peru. 2014

Treatment of acid mine drainage. GLENCORE, Peru. 2014

Design and construction of three treatment plants for effluents from copper and zinc mines. The plants have been designed to neutralise acid mine drainage at three different points, with flows of 14,000 m³/day, 6,000 m³/day and 9,000 m³/day.

All the plants will ensure the correct return of effluent to the environment, with the last one also being capable of reusing water in the metallurgic process.

O&M of an osmosis plant for mining process water. Sierra Gorda Sociedad Contractual Minera, Chile. 2014

O&M of an osmosis plant for mining process water. Sierra Gorda Sociedad Contractual Minera, Chile. 2014

The services cover the supply, operation and maintenance of the reverse osmosis plant, designed to produce 370 m³/h of permeated water, mostly as process water, and 35 m³/h of drinking water. The process water is used in the metallurgical plant for the recovery of copper and molybdenum.

The contract is based on compliance with a series of efficiency objectives, which are continuously measured through the application of KPIs. They are defined as bonus or malus depending on the level of compliance, establishing a partnership relationship with the customer.

Specialist consultancy

  • Hydrogeology applied to mining.
  • Master plans for the management of the water cycle in mining.
  • Design of water treatment processes.
  • Continuous environmental remediation of affected areas.
  • Permits and preparation of integrated environmental authorisations.

Design–build–operate

  • Water infrastructure:
    • Water reinjection or extraction wells.
    • Reservoirs for water storage.
    • Water pipes and networks.
    • Pumping systems.
    • Reinjection in aquifers.
    • Tailing ponds.
  • Process water, drinking water and wastewater treatment facilities:
    • Seawater desalination.
    • Water desalting, decalcification, denitrification, etc.
    • Treatment of acidic mine drainage effluents for neutralisation and removal of metals.
    • Treatment of effluents from beneficiation plants. Specific designs depending on the effluent in question.
    • Wastewater treatment plants based on electrocoagulation, which minimise the use of chemical products.
    • Nitrate and selenium removal technologies.
    • Specific treatment for sulphate removal. Use of specific chemical products.
  • Water reclamation facilities:
    • Physicochemical treatments, ultrafiltration, osmosis, ion-exchange resins, WWTP, decalcification, disinfection, etc. All these technologies may be useful depending on the quality and purpose of the reused water. Aqualogy has numerous success stories in reuse and ZLD (zero liquid discharge).

Operation and maintenance and material supply services

  • Accredited laboratory for the control of parameters and emissions. Labaqua.
  • Well maintenance. Aqua Gard and Aqua Freed®.
  • Gas control, removal and prevention of dust.
  • Operation and maintenance of water facilities.
  • Supply of materials. LOGISTIUM.

BOT. Financing of facilities

Aqualogy's financial capacity allows it to form long-term relationships with mining companies throughout the entire operation project. Aqualogy invests in the facilities it designs, builds and operates and designs remuneration systems related to production to enable the financial resources of the mining company to focus on mineral extraction processes.

OPTIMISATION IN ENERGY MANAGEMENT

Advanced Energy Consulting provides support services for the process prior to contracting energy, including training for energy management and purchasing teams, analysis of contracts underway and definition of a purchasing strategy. All this with the aim of establishing the purchasing strategy that meets the needs and consumption profile of the customer.

DRAWING UP OF TECHNICAL SPECIFICATIONS

Advanced Energy Consulting advises on the drawing up of the technical specifications for the signing of energy contracts. The service consists in the organisation and drawing up of the documents with the technical specifications for energy supply contracting, including the following steps:

  • Compilation of contract details
  • Updating of contract details
  • Selection and definition of types of energy contract and other electric bill items

NEGOTIATION WITH TRADING COMPANIES

Services to act as an intermediary with energy trading companies, aiding in negotiations and the drawing up of energy contracts based on the consumption profile and needs of each customer.
Advanced Energy Consulting provides support to customers in all stages of the bidding process.

  • Selection and ranking of suppliers
  • Delivery and explanation of technical specifications to suppliers
  • Bidding and reception of tenders
  • Economic comparison of bids
  • Legal analysis of bids (compliance with the established technical specifications)
  • Report with results and recommendations
  • Negotiation of management costs (profit margin and billing for programming diversions)
  • Review of the contract and coordination of its signing with the supplier

OPTIMISATION OF ENERGY PURCHASE PRICE AND BUDGET CONTROL

Consulting services in hedging with futures contracts, planning of consumption in line with market price forecasts, control of the energy budget and checking of billing.
This service includes:

  • Monitoring of market developments. Compilation and sending of key energy market information to monitor and make decisions regarding energy contracts.
  • Monitoring of customer’s energy contract portfolio. Compilation and delivery of reports on the state of the customer’s energy contracts.
  • Recommendations on price positioning. Identification of opportunities for pricing objectives on the market based on the purchasing strategy set up for the customer and their communication to the customer.
  • In-person quarterly meetings. Meetings with customers to review market developments and the state of contracts.
GAS TREATMENT AND DUST CONTROL AND REMOVAL

GAS TREATMENT AND DUST CONTROL AND REMOVAL

Aqualogy’s product range includes engineering solutions and systems for the extraction and control of dust and SOx gases, sprinkler systems, scrubbers, and ammonia (NH3) and hydrogen sulphide (H2S) decanting.

  • Engineering in air filtration and ventilation applied to underground mining.
  • Pressurisation and air conditioning for electrical control and processing rooms.
  • Modelling using CFD.
    Dust control on roads and in crushing and material supply areas in mines.
  • Diagnosis, process application and maintenance of facilities.
HYDROGEOLOGY APPLIED TO MINING

HYDROGEOLOGY APPLIED TO MINING

  • Full range of products and services related to comprehensive groundwater management. Management, control, monitoring and maintenance of water catchments for supply or protection and underground mining.
  • Hydrogeological studies and aquifer recharge.
  • Rehabilitation of wells (Aqua Freed® and Aqua Gard™ systems).
  • Design and modelling of drainage systems.
  • Drilling of wells, filming of interiors and supply of equipment, instruments and piezometers.
ELECTROCOAGULATION AND ELECTROOXIDATION

ELECTROCOAGULATION AND ELECTROOXIDATION

Electrocoagulation generates coagulating ions, on site, using iron or aluminium sacrificial anodes. This technology is especially designed for mining wastewater with a metal content that requires single-step precipitation, is not pH dependent and is subject to strict environmental control. It is mainly applicable to water from mine entrances, process water, etc.

The electrooxidation of pollutants is achieved by direct or indirect contact with the anode using oxidants generated during the electrolytic process. This technology is especially applicable to water with high refractory COD content or the presence of disruptive pollutants.

In both cases, it is compact technology that takes up very little space.

CHEMICAL PRODUCT FOR THE ELIMINATION OF SULPHATES

CHEMICAL PRODUCT FOR THE ELIMINATION OF SULPHATES

The product used for the neutralisation of acid mine drainage is usually calcium hydroxide, as the traditional precipitation method, although when values lower than 2,000 ppm need to be achieved in the effluent, this hydroxide is not usually capable of meeting the necessary requirements.

Aqualogy markets a product specifically developed for the precipitation of sulphates, reaching 20 ppm

OPTIMISATION OF ENERGY PURCHASE PRICE AND BUDGET CONTROL

OPTIMISATION OF ENERGY PURCHASE PRICE AND BUDGET CONTROL

Consulting services in hedging with futures contracts, planning of consumption in line with market price forecasts, control of the energy budget and checking of billing.