Sentence examples for activity sludge from inspiring English sources

The inoculum (activity sludge) had a broad trophic microbial composition to ensure the substrate would not be limited.

This can be explained by background Ag concentrations in the influent wastewater (15.0 ± 7.6 μg Ag L-1) and activity sludge mixed liquor.

Following mixed liquor digestion in the three SBRs and anaerobic assays, the diversity of bacterial populations was determined and compared to that of influent wastewater, activity sludge mixed liquor (aerobic inoculum) and anaerobic inoculum.

Design of Experiments (DoE) was applied to improve the ability of enriched activity sludge to efficiently convert crude glycerol from biodiesel industry into hydrogen and ethanol, using a very simple synthetic medium.

Three individual SBRs (control, Ag+ and AgNPs) with a working volume of 5 L and an initial TSS of 6.0 g L-1 were prepared with 0.9 L of activity sludge mixed liquor (TS = 35.3 g L-1) and 4.1 L of influent wastewater.

Activity sludge was applied as raw material to produce bioflocculants [ 33– 36], and various wastewaters were used as cheap carbon source to reduce the production cost, such as potato starch wastewater [ 37– 39], palm oil mill effluent [ 40, 41], dairy wastewater [ 31], chromotropic acid wastewater [ 42], and brewery wastewater [ 43].

Prior to assess enzymatic activities, activated sludge aliquots was taken and cleaned three times with 1.5 M NaCl buffer 5 M NaCl buffer consisted with 0.01 M EDTA and 1 mM NaF (pH 7.4).

The highest metal concentration reduced the activated sludge activity by 50%% was amended in Petri dish containing 20 ml sterile LB agar and mixed well.

Inhibition of the bacteria and consequently the activated sludge activity were determined according to the following equation: {text{Inhibition}} left( % right) = left[ {left( {{I_0} - I} right)/{I_0}} right] times 100 Where I0 represents intensity of the control without treatment and I represents intensity of sample after treatment with heavy metal (Weddle and Jenkins 1971; Shim et al. 2003).

It has been reported that 10 400 mg/L SMX is able to inhibit microbial activity in activated sludge by more than 20% [ 20].

The inhibitory effect on dehydrogenase activity of activated sludge biomass increased with the increase in chain length of the alkyl substituent; however, it was dependent on the origin and properties of activated sludge (Liwarska-Bizukojc 2011).