BIOLOGISCHE BESIEDLUNG UND MINERALISCHE ABLAGERUNGEN AUF FILTERMATERIALIEN ZUR TRINKWASSERAUFBEREITUNG

Translated title of the contribution: Biological colonization and mineral deposits on filter material for water treatment

G. J. Tuschewitzki, P. Werner, W. Dott

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The biological colonization and deposits of two filter materials (granular activated carbon (GAC) and sand) were examined by scanning electron microscopy and microanalysis. The samples came from a pilot plant for drinking water treatment where a humic-acid-containing groundwater was treated by aeration, flocculation, sedimentation, filtration and ozonation. One additional GAC-column was run without preozonation. The GAC column run with preozonation was heavily colonized in the upper part (approximately 10**9 bacteria per gram GAC). The colonization decreased along the column. The GAC column without preozonation and the sand-column were only slightly colonized, but the latter showed deposits of minerals: one mineral layer consisted of calcium crystals arranged in a regular manner, the other one contained calcium and manganese without any special structures.

Translated title of the contributionBiological colonization and mineral deposits on filter material for water treatment
Original languageGerman
Pages (from-to)521-526
Number of pages6
JournalGWF, Wasser - Abwasser
Volume124
Issue number11
Publication statusPublished - Jan 1 1983

ASJC Scopus subject areas

  • Water Science and Technology

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