An heterotrophic/autotrophic denitrification (HAD) approach for nitrate removal from drinking water
作者： Claudio Della Rocca , Vincenzo Belgiorno , Süreyya Meriç
DOI: 10.1016/J.PROCBIO.2005.11.002
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摘要: Abstract An heterotrophic/autotrophic denitrification (HAD) approach supported by cotton and zero valent iron (ZVI) was proposed for nitrate removal from drinking water. Preliminary batch tests were performed to investigate the behaviour of ZVI rich water system. Afterwards HAD process tested in continuous pilot-scale column reactors containing 380 g 150–300 g (R2–R4) a blank reactor (R1) filled only with (cotton denitrification, CSD). The performance evaluated according volumetric removal, stability time by-products formation. reactors, particular, 300 g (R4), showed higher efficiencies (from 0.235 0.275 kg N m−3 day−1) than CSD (0.190 kg N m−3 day−1). Furthermore, released such as soluble ammonium limited very low levels (
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