FAQs

Are you wondering if your aqueous waste is compatible with evaporation-based treatment? ZEWATECH not only offers various treatments but also provides advice and laboratory pilots to determine the composition of your water and the various options available to reduce waste processing costs.

The waste to be treated must be water-based with no more than 20% solids. Provided these requirements are met, ZEWATECH has experience in the design and manufacture of equipment for many different types of waste.

info@zewatech.com // +34 977 81 70 54

The ZEWTAECH solution consists of several well-defined steps so that the client has all the necessary information when deciding whether evaporation is the method of choice:

1 – Pre-investment studies

2 – Laboratory testing

3 – Technical and economic proposal

4 – Semi-industrial pilot plant rental

5 – Joint CAPEX/OPEX audit with the client

6 – Project development

7 – Manufacturing and installation

8 – Equipment commissioning and training

9 – Comprehensive support and maintenance

The main advantage of evaporation over other systems is the guaranteed performance; evaporators offer great reliability and robustness. They also have other advantages such as the low level of monitoring and maintenance required, as well as the low waste generated.

                                             

Mechanical vapor compression is a process used to increase the temperature and pressure of a vapor stream to produce a vapor stream or to separate volatile components from a liquid mixture.

In this process, a vapor stream is mechanically compressed through a compressor, increasing its temperature and pressure. The compressed vapor stream is then cooled and condensed in an exchanger, producing a concentrated liquid stream and a vapor stream.

The development of mechanical vapor compression technology has a major advantage in energy savings. Other types of evaporators require a parallel refrigeration system that regulates the temperature of a gas, which exchanges energy with the wastewater stream. In contrast, in mechanical vapor compression, the only equipment that consumes electricity is the compressor upstream of the exchanger. Therefore, less power is required, which also translates into cost savings.

A heat pump evaporator is an industrial evaporator that regulates the temperature of wastewater from a refrigeration system. It consists of several components, such as compressors and heat sinks, that supply and extract energy from the system to control the evaporation and condensation of wastewater.

ZEWATECH has extensive experience with this technology in the manufacture of heat pump evaporators. It is also one of the most reliable and robust technologies for aqueous waste treatment.

Fluidized bed heating is a technique commonly used in industry to improve heat exchange efficiency and reduce maintenance costs. Heat exchangers are equipment that transfer heat from one medium to another and are often used in industrial evaporators involving fluids and gases.

During heat exchanger operation, wastewater can deposit sediment or scale on the internal walls of the exchanger, reducing heat exchange efficiency and increasing maintenance costs by requiring frequent cleaning. Ceramic balls are used to effectively remove this scale and avoid costly maintenance.

Ceramic balls are small porous ceramic spheres that are introduced into the heat exchanger and circulated along with the working fluids. As the balls circulate, they collide with each other and against the exchanger walls, creating an abrasive effect that removes scale and sediment from the exchanger’s internal walls. The balls can also help prevent the formation of new scale by keeping the exchanger’s internal walls clean.

Thanks to ZEWATECH technology, these balls recirculate through the heat exchanger and the accompanying circuit without reaching other equipment, thus safeguarding the integrity of other equipment.

Reject water in the reverse osmosis process is the water that is not used during the production of purified water. This water contains a high concentration of salts and other contaminants that have not been retained by the osmosis membranes.

Although reject water is disposed of, it is often an environmental problem if not managed properly. Typically, reject water is returned to rivers, oceans, or underground aquifers, which can cause environmental and public health problems.

In short, reverse osmosis reject water is an environmental and resource management issue that must be properly addressed. Treating and reusing reject water can contribute to environmental preservation and the conservation of water resources.

With the use of ZEWATECH evaporators, water consumption is significantly reduced since they do not require additional water input.

In addition, they allow both waste and water to be recovered and reused, thanks to their purity after proper treatment.

Evaporation is an effective technique for reducing the amount of water in water-based waste. Using an evaporator converts the water in the waste into water vapor, leaving behind higher-boiling contaminants. This significantly reduces the amount of waste that must be disposed of.

Furthermore, evaporation technology requires less intervention and labor compared to other wastewater treatment techniques, which reduces costs. It is also capable of handling a wide variety of waste streams, making it more versatile than membranes and physical/chemical treatment techniques.

Finally, evaporation effectively concentrates waste, reducing disposal volume and costs compared to other techniques. Overall, evaporation is an effective and cost-effective option for treating water-based waste.

With the use of ZEWATECH evaporators, water consumption is significantly reduced as they do not require additional water input.

In addition, they allow both waste and water to be recovered and reused, thanks to their purity after proper treatment.