BACTERIAL CYCLING OF ORGANIC MATTER

xS

xS xS

xS

xS

Extracellular

Enzymes

SS

SS SS

Electron

Acceptor

O2, NO3,

SO4, etc.

HYDROLYSIS

LYSIS,

DECAY

Non-biodegradable

particulate organic matter

(debris), XD

SS

SSSS

SS

SS

GROWTH

Influent

Particulate

Organic Matter

Influent

Soluble

Organic Matter

Viable

bacteria

XBH