EVALED® range of evaporators for treating effluents
Managers of industrial sites are regularly faced with the issue of how to treat effluent and industrial wastewater. They must perform such treatment in compliance with the technical and environmental standards imposed. Among the many water technologies mastered by the Veolia Group, EVALED® ensures the rapid treatment of a large volume of process water thanks to a revolutionary evaporation process.
EVALED®: an evaporation technology for industrial wastewater
Recycling of water polluted by industrial activity has made remarkable progress with the EVALED® range of evaporators – designed and developed by Veolia Water Technologies.
These systems produce intense heat via a hot water circuit, a steam circuit, or a network of heat pumps. The heat evaporates the process water leaving the circuit, and forms a solid residual distillate composed of more than 90% dry matter.
Ideal for treating and recycling wastewater from major industries and production sites, EVALED® boasts a treatment capacity of up to 200 tonnes of distillate per day for larger plants. Operation of the structure is fully automated and requires no operative except when maintenance is required.
Based on the recognised expertise of Veolia Water Technologies, EVALED® evaporators guarantee:
- Very high effluent concentration ratios in the distillate;
- An efficient separation process;
- A recycling process; and
- A significant reduction in liquid pollutant discharges.
Evaporation of effluents for many kinds of industry
EVALED® evaporators are already a reference technology in many industrial sectors. They ensure strict compliance with all current environmental standards in terms of industrial wastewater discharge and of pollutant emissions.
These evaporators integrate various production or processing processes to meet your specifications:
- Mining and metallurgical industry;
- Extracting and refining petroleum products;
- Hydrocarbons treatment;
- Organic and industrial waste recycling;
- Biogas and biofuel production;
- Transformation processes in agribusiness;
- Energy industry;
- Electronics and photovoltaic panel production;
- Mechanical and surface treatments;
- Pharmaceutical industry; and
- Black water and wastewater from pulp and paper industries.
EVALED®: a wide choice of technologies
• EVALED® PC: heat pump evaporation
The E and R series of the EVALED® range are based on an innovative heat pump vacuum system. That system heats industrial water and subjects it to a pressure of 5 kPa. The heat exchange is designed to promote the accelerated formation of a distillate hyperconce
entrated with toxic effluents. The production capacity is between 150 and 2000 litres per day.
• EVALED® AC - RW or EW: heat exchange by natural circulation
A/ The EVALED® AC-RW installation
To ensure the successful treatment of effluents, this installation takes advantage of a hot water or steam circuit, and brings process water to a pressure of 5 kPa and to a temperature of 40°C. Then, the outgoing distillate is cooled quickly. It is removed using a pumping mechanism or by regular draining in the boiling chamber.
The RW series is a valuable asset for many industrial processes, at both small and medium-sized sites, with a distillate production capacity of between 3,000 and 12,000 litres per day.
B/ The EVALED® AC - EW range
The effluent and industrial wastewater is heated by a hot water circuit with which it communicates in a heat exchanger. A cold water circuit ensures rapid condensation of liquid discharges.
The EW system can produce between 20,000 and 60,000 litres of distillate per day. This range provides the perfect technological solution for larger industrial sites
• EVALED® RV-MVR: steam and mechanical compression
Based on mechanical vapour recompression (MVR) technology, this variant of the EVALED® system uses the power of two steam compression mechanisms. This ensures:
- Forced circulation of effluents; and
- A falling film heat exchange.
This technique offers:
- Optimised concentration of effluent;
- Minimal energy consumption; and
- A considerable production capacity (between 120,000 and 250,000 litres of distillate per day).
Once installed, EVALED® Evaporator products require only minimal handling. Through customised service contracts, Veolia Water Technologies' engineering teams are available to all industrial customers for regular maintenance and servicing.
With decades of experience in the field of wastewater recycling, energy and water technologies, Veolia is a trusted partner for all industrial site managers wishing to improve sludge management and water treatment in their processes.
EVALED® evaporators have the capacity to treat very large volumes of industrial effluents at a high performance level with low energy consumption.