BVT-Merkblatt zu Abwasser- und Abgasbehandlung

7.3 Annex III. Monitoring of a Central Biological WWTP
Annexes
Proper operation of a biological WWTP requires constant surveillance and the targeted adjustment
of various process parameters. Monitoring of the relevant parameters can be accomplished
by on-line measurements that facilitate direct intervention and control, or analytical results derived
from waste water samples, which reflect longer-term trends and are also essential for
monitoring and documentation purposes. Both the needs with respect to on-line measurements
and analyses applicable to the various process stages associated with a WWTP are provided in
Tabelle 7.1. Specific requirements may vary in individual cases [cww/tm/132].
Parameter Influent Neutralisation
Preclarification
Buffer
influent
to biology
Bi ology Effluent Sludge
treatment
Analyses from on-line measurements
waste water flow c c
pH c c c c c c c
temperature c c
bacteria toxicity c
TOC c c c
nitrogen c c c
phosphorous c c c
total solids [g/l] c
dissolved oxygen c c
Analyses from random samples
total solids [g/l] i i i
settling volume i i i
Analyses from average samples
TOC i i i
COD i i i
BOD i i i
AOX / EOX i i i
total nitrogen i i i
NH4-N i i i
NO3-N i i i
total phosphorus i i i
PO4-P i i i
individual substances i i i
c: continuously online
i: inhalatory samples
Tabelle 7.1: Monitoring of a WWTP
Waste Water and Waste Gas Treatment 327