2004•Xi'nan Nongye Daxue xuebaoRequires access

DENITRIFICATION CHARACTERISTICS OF IMMOBILIZED DENITRIFYING BACTERIA

Jinhong Tang

Abstract

The denitrification characteristics of denitrifying bacteria immobilized by polyvinyl alcohol (PVA) were studied with different N sources and at different temperatures and NH_4~+ concentrations and compared with those of free (non-immobilized) bacteria. The optimum temperature for denitrifying liquid waste was 30℃ for both immobilized and free denitrifying bacteria. The denitrification rate of NO_2~-N was lower than that of NO_3~—N in the immobilized denitrifying process. Immobilized denitrifying bacteria were more tolerant to low temperature and high NH_4~+ than free denitrifying bacteria.

About this research paper

What this paper is about

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Denitrifying bacteria, Denitrification, Bacteria, Polyvinyl alcohol, Chemistry, Environmental chemistry, Nitrogen, Biology