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WASTEWATER TREATMENT INSTALLATION IN SMALL TOWNS
ES2908743
Researchers from the University of Burgos have developed an installation for the purification of wastewater in small towns, offering an economic and environmental solution, with multiple advantages. In Spain, 47% of the municipalities have less than 500 inhabitants, the possible beneficiaries of this technology.
Ease of construction. This wastewater treatment plant develops the biological activity of microorganisms, achieving higher percentages of organic matter reduction, in addition to retaining non-sedimentable solids. Compared to aerobic systems, the growth rate of anaerobic microorganisms is lower than the growth rate of aerobic microorganisms, which translates into less sludge production, prolonging the operating period of the installation without the need for purge sludge to prevent its collapse. The use of anaerobic digestion avoids the need to aerate the water with blowers or air pumps. Anaerobic digestion allows organic matter to be converted into biogas, a renewable energy source that can be used to generate energy in the form of heat or electricity. A pumping system is not necessary to circulate the water from one stage to another, but the natural unevenness of the terrain is used.