Mobile desalination units are on the rise. Due to its modular and compact plant design Aquastill technology can be easily installed on board vessels of many kinds and sizes or installed on trucks to be used wherever water is needed. Where mobility and flexibility meet, membrane distillation is the answer.
In areas where waste heat or a connection to the power grid is not available, we have to rely on the most powerful sustainable energy: the sun. Solar energy combined with membrane distillation can provide electricity, water, and food. Drastically reducing environmental footprint and operating costs.
Economic growth is threatening the availability of clean water in many regions in the world. Desalination of seawater and brackish water is often used for both water consumption and industrial purposes. This offers tremendous opportunities, since seawater and brackish water are a plentiful and easily accessible resource, while conventional purification techniques consume considerable amounts of energy. In today’s desalination fields, reverse osmosis is the technology of choice.
However, there are many add-on applications where Aquastill technology can improve the fields not covered by reverse osmosis. For instance, where the salinity of the source is high, where the salinity may fluctuate, or where extremely high purification is required. On a large scale, but on a smaller scale as well. In contrast to other thermal technologies, membrane distillation can be highly efficient on a small scale, making it a very interesting solution when large scale implementation is not desirable nor possible.
Aquastill membrane distillation is a thermal process, consuming low-grade waste heat to produce clean water. Temperatures in the range of 5 till 85 °C can be used for the process. In the process components are separated from a contaminated source by means of evaporation through a hydrophobic membrane. Evaporation takes place in our unique Aquastill modules. All our modules are built with three types of channels: the membrane channel, the condenser channel and the distillate channel. To achieve evaporation, a temperature difference is applied between the membrane and condenser channel.
This temperature difference acts as the driving force for the process. A large temperature difference will result in a higher driving force and higher productivity at the cost of more thermal consumption and vice versa. To maintain a temperature difference, both a source of heat and a source of cooling are required. Salinities up to just below maximum solubility of components may be processed. Performance is dependent upon operational parameters and declines linearly with increasing salinity. As membrane distillation is a thermal process, the electrical consumption is from circulating water. Thus, no high pressures are required.
Any business can profit from our technology. If you need high purity clean water or have to dispose of saline or contaminated water. If you need a green technology or have waste heat to dispose of. Aquastill is for everyone who is fed up with wasting the world.
At Aquastill we have industrialized a natural process. Our technology uses membrane distillation to extract pure water from a polluted stream by evaporation through a hydrophobic membrane. Rejecting 99,97% contaminant in a single step.