*Promising Techniques for Wastewater Treatment and Water Quality Assessment*


#### **Table 6.** *APT broth – liter*�*<sup>1</sup>*

inoculum to 200 ml of APT broth (**Table 6**), incubated in a rotary-shaker for 15 hours at 28 ̊C, resulting in the inoculum for the two tests. The two substrates have been kept under chemical hood for 48 hours at ambient temperature. At the same time, a fraction of the following substrates has been stored in sterile flasks:


*.*

These substrates have been used as blank samples in the periodical spectrophotometric readings (600 nm) taken for either test.
