The examined operational variables were: concentration of chemical agent (0.1 2 M), pH (3 5) and initial lead concentration (50 250 mg/L), and the studied response was biosorption capacity (mg/g).
The concentrations of both FA and FNA according to Eqs. 3 and 4 are influenced by operational pH, substrate concentration, and temperature (Chen et al. 2010).
It should be noted that the desired operational conditions, solar concentration ratio, and the collector geometry/construction will affect the overall receiver efficiency.
The effects of operational parameters; acid concentration, initial solid content, reaction time, reaction temperature and mixing speed on sCOD and sSugar were studied with PBD.
These criteria are recommended for authors, referees and educators and include calibration characteristics (sensitivity, operational and linear concentration range, detection and quantitative determination limits), selectivity, steady-state and transient response times, sample throughput, reproducibility, stability and lifetime.
Performance of electrocoagulation system for the removal of copper from synthetic wastewater was investigated using aluminum electrode pair at four operational parameters: copper concentration (2.5-32.5 mg L− 1), pH (5 9), voltage (6 18 V) and treatment time (5 25 min).
A first-order full-factorial design was used to evaluate the effect of the operational variables: soda concentration (1 2%), temperature (80 120 °C) and pulping time (30 90 min), on the properties of the pulp (cellulose and lignin contents) obtained from BSG.
Under the optimum operational conditions: COD concentration of 5.39 U/g yolk powder, water: solid ratio of 3.54 and incubation time of 13.75 h, up to 85.6% yolk cholesterol was reduced, and the remaining cholestenone, an effective anti obesity medicine in the product, may raise its commercial value.
Two factorial experimental designs (23 and 22) were performed to evaluate the effects of four operational variables (pH; biomass concentration; nitrite concentration and C/N ratio) on the SDA.
