A simple spectrophotometric method based on pH-indications for monitoring partial and total alkalinity in anaerobic processes

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

Partial alkalinity, as a measure of bicarbonate concentration, and total alkalinity, as a measure of the concentration of bicarbonate and volatile fatty acids, are useful parameters for monitoring anaerobic digestion processes. This paper reports a new method based on pH-indicators and spectrophotometric measurements for the monitoring of partial and total alkalinity. The method was used in an off-line procedure for monitoring of an anaerobic process and displayed less than 5% deviation from the traditional method of measuring partial and total alkalinity, as well as being rapid and reproducible. A flow injection analysis system based on the method was used on-line for monitoring overload in a UASB reactor, which demonstrated changes in alkalinity not easily registered using traditional methods.

Detaljer

Författare
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Industriell bioteknik

Nyckelord

Originalspråkengelska
Sidor (från-till)1061-1067
TidskriftEnvironmental Technology
Volym24
Utgåva nummer9
StatusPublished - 2003
PublikationskategoriForskning
Peer review utfördJa