Biotreatment of  s ‐triazine‐containing wastewater in a fluidized bed reactor | Zendy

Hogrefe W. | Zendy; Grossenbacher H. | Zendy; Cook A. M. | Zendy; Hütter R. | Zendy

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Biotreatment of s ‐triazine‐containing wastewater in a fluidized bed reactor

Author(s) -

Hogrefe W.,

Grossenbacher H.,

Cook A. M.,

Hütter R.

Publication year - 1986

Publication title -

biotechnology and bioengineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.136

H-Index - 189

eISSN - 1097-0290

pISSN - 0006-3592

DOI - 10.1002/bit.260281016

Subject(s) - fluidized bed , wastewater , chemistry , residence time (fluid dynamics) , hydraulic retention time , pulp and paper industry , nitrogen , chromatography , carbon source , carbon fibers , triazine , microorganism , chemical oxygen demand , waste management , environmental science , environmental engineering , materials science , organic chemistry , bacteria , biology , biochemistry , geotechnical engineering , composite number , engineering , composite material , genetics

Mixed cultures of microorganisms immobilized on sand were used to degrade s ‐triazine‐containing industrial wastewater in a fluidized bed reactor. Immobilized cell concentrations of up to 18 g/L volatile suspended solids could be achieved with the s ‐triazines as sole nitrogen source for growth and carbon sources added at a CN ratio of about 12. Maximal removal efficiencies of 80% of the s ‐triazines could be maintained only if (a) the bio‐film thickness was limited to avoid oxygen deficiency and (b) the carbon source and complete wastewater (⩽50% v/v in the feed) were supplied continuously at a mean hydraulic residence time of ≥20–25 h.

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