The H2 productivity of the sludge was enhanced by heat treatment [ 23].
Some companies have been accused of poor disposal of the sludge waste that results from fracking.
Specific gravity of the sludge was 2.36.
Rarefaction analysis of the sludge metagenomes.
A control with only granular sludge and without microalgae was prepared to measure the endogenous activity of the sludge itself.
Soils treated with sewage sludge had relatively low levels of contamination when compared with those of the sludge itself.
Microcolony and filament-forming bacteria make up important structural components of the activated sludge floc that determine the settling properties of the sludge (38, 39).
On day 137, 65% of the sludge bed (calculated based on bed height) was removed from the reactor to perform kinetic studies with the nickel-limited methanogenic sludge.
As half of the sludge from DAF was recycled to EGSB, it implied that half sludge was biodegraded during the operation.
Secondary sludge is recirculated to a primary clarifier which improves the settling characteristics of the primary sludge and increases sludge age.
