How to improve the sustainibility of wastewater and drinking water treatment

How to improve the sustainibility of wastewater and drinking water treatment

Recent years have seen a rise in the importance of "green" technologies to tackle wastewater treatment,which includes application of natural water treatments and improvements in existing conventional or advanced treatments in order to reduce the energy usage, pollutant discharge and chemical feed. The most promising examples are (i) natural treatments, such as, constructed wetlands, artificial recharge, (ii) solar driven catalytic processes, (iii) membrane technology. In case of membrane technology, the options to improve sustainability of the technology are based on process intensification through increased plant compactness (reduced volumes) and modular solutions available for point and non-point sources, energy saving (through the application of renewable energy sources such as solar or wind power and even optimizing such devices by means of knowledge-based control system). Moreover, ultra low pressure filtration devices are suitable for pathogens removal from drinking water, making them a very interesting low cost technology to be taken into account.

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