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Resources scarcity and electricity demand have been dramatically increasing. Wastewater is recognized as one of resources for water, energy and plant fertilizing nutrients. Nevertheless, current wastewater treatment technologies have limitations due principally to their energy- and cost-intensive for achieving the conversion target of wastewater recovery. It is desired to develop a new technology...
Microbial biofilms are encountered in a wide variety of applications, especially in wastewater treatment systems. Biofilm dynamics in wastewater treatment has been paid much attention, and the simulation of the biofilm growth has been studied with many approaches in recent years. To simulate the real microbial biofilm growth, this paper proposed the confined diffusion limited aggregation (DLA) models...
In the present study we reported the feasibility of extracellular biopolymer(PF-9) produced by Pseudomonas fluorescence C-9 as an alternative biosorbent to remove Ni(II) metallic ions from environmental and industrial wastewater. The ability of PF-9 to remove the Ni(II) ions was investigated by using batch biosorption procedure. The effects such as pH, dosage of biosorbent, Ni(II) initial concentration...
To assess the potential applicability of bioflocculant PS-2, a bacterial extracellular polysaccharide, to wastewater treatment as a biosorbent, the biosorption of PS-2 to remove the Cu (II) ions was investigated by using batch biosorption procedure. The effects such as pH, initial metal ions concentration, biosorbent dosage on the adsorption capacities of PS-2 were studied. The optimum uptake of Cu...
The orthogonal test was used to study the bactericidal capability of potassium ferrate and its influencing factors for bacteria and Escherichia coli when potassium ferrate is playing coagulation effect in treating micro-polluted water. The results showed that the order of the primary and secondary factors affecting the germicidal efficacy of potassium ferrate was oxidation time, reagent amount and...
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