Identificación de bacterias filamentosas en EDAR industriales
2008
In industrial wastewater treatment plants (IWTP), the use of microorganisms (bacteria, protists or metazoan) as indicators of effluent quality is a practical control system that is getting increasingly popular in recent years. If an IWTP performance is good, its effluent can be re-used or released into the natural ecosystems without running environmental risks. The capability of microorganisms population as indicators of effluent quality has often been described in the literature. The different types of industrial wastewaters require different strategies to remove the contaminants. It is known that industrial wastewaters from agriculture or food industry have different characteristics than municipal wastewaters. On the ground, industrial wastewaters are biodegradable and nontoxic, but they have higher concentrations of biochemical oxygen demand (BOD) and suspended solids (SS). The microscopic observation and identification of filamentous bacteria, as well as its distribution and quantification in industrial activated sludge, provide the plant operator with useful information. In fact, most IWTPs which suffer from Bulking have operational disorders that can severely disrupt solid separation. The results shown are based on a comparative study carried out by GBS in several Spanish IWTPs. It has been established that the filamentous bacteria populations in industrial activated sludge differ from those in urban wastewater treatment plants significantly. Author
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