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Biological conversion of sulfide, acetate, and nitrate to, respectively, elemental sulfur (S0), carbon dioxide, and nitrogen-containing gas (such as N2) at NaCl concentration of 35–70 g/L was achieved in an expanded granular sludge bed (EGSB) reactor. A C/N ratio of 1:1 was noted to achieve high sulfide removal and S0 conversion rate at high salinity. The(More)
The adsorption performance and mechanism of extracellular polymeric substances (EPS) extracted from Klebsiella sp. J1 for soluble Pb (II) were investigated. The maximum biosorption capacity of EPS for Pb (II) was found to be 99.5 mg g(-1) at pH 6.0 and EPS concentration of 0.2 g/L. The data for adsorption process satisfactorily fitted to both Langmuir(More)
Waste activated sludge is a valuable resource containing multiple nutrients, but is currently treated and disposed of as an important source of pollution. In this work, waste activated sludge after ultrasound pretreatment was reused as multiple nutrients for biofuel production. The nutrients trapped in sludge floc were transferred into liquid medium by(More)
Biological removal of sulfide, nitrate, and phenol at loading rates of 600 g S/(m3 day), 900 g N/(m3 day), and 450 g C/(m3 day), respectively, from synthetic wastewaters was achieved in an expanded granular sludge bed (EGSB) reactor, whose rates are much higher than literature works and are considered feasible for handling high-strength petrochemical(More)
Different crystalline forms are obtained by simply manipulating the good/poor solvent ratio in mixed solvents of toluene/ethanol. Depending on different solvent ratios, poly(9,9-dioctylfluorene)s (PFOs) can generate a large palette of morphologies including lenticular crystals, fibrous crystals and rod-like crystals. In the crystallization process, polymer(More)
This study proposed a novel free ammonia (FA, i.e., NH3 ) pretreatment technology to enhance anaerobic methane production from primary sludge for the first time. The solubilization of primary sludge was substantially enhanced following 24 h FA pretreatment (250-680 mg NH3 -N/L), by which the release of soluble chemical oxygen demand (SCOD) (i.e., 0.4 mg(More)
Poor flocculation of photo fermentative bacteria resulting in continuous biomass washout from photobioreactor is a critical challenge to achieve rapid and stable hydrogen production. In this work, the aggregation of Rhodopseudomonas faecalis RLD-53 was successfully developed in a photobioreactor and the effects of different carbon sources on hydrogen(More)
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