Enhancing Performance of Sphingobacterium spiritivorum in Bioremediation Phenanthrene Contaminated Sand

Abstract

Many biodegradation studies have focused on survival of isolated bacteria to increase the bacteria population and subsequently enhance the efficiency of polycyclic aromatic hydrocarbon (PAH) biodegradation. However, there is limited research on enhancing the performance of isolated bacteria through reinoculation. Thus, this study was designed to evaluate the effects of reinoculation on the performance of Sphingobacterium spiritivorum in degradation of phenanthrene contaminated sand. Experiments were performed in three different reactors. Inoculation was performed once (day 0) in reactor 1. In reactor 2, inoculation was performed twice (day 0 and day 5). The bacteria was isolated from reactor 2 and inoculated into reactor 3. The study results show reactor 3 having the highest degradation rate (13.61 mg/kg/day) and percentage removal (95.36 percent). In contrast, without reinoculation in reactor 1, 68.93 percent of phenanthrene was removed. Thus, the performance of S. spiritivorum in phenanthrene degradation can be enhanced through reinoculation. © 2014 Wiley Periodicals, Inc.

Aerobic co-composting degradation of highly PCDD/F-contaminated field soil. A study of bacterial community

“…Sphingobacterium sp. is reported to be an effective degrader of phenanthrene (Mohd-Kamil et al 2014), flourene (Nam et al 2015), PCBs (Leigh et al 2006), insecticide (Cai et al 2015), etc. Actinobacteria are popular colonizers in composting studies and nocardioform strains of this phylum such as Mycobacterium and Rhodococcus have been documented as1 playing a role in the degradation of organic contaminants (Antizar-Ladislao et al 2008).…”

Improvement of Biowaste Composting Efficiency using Sphingobacterium spiritivorum

“…Addition of biological agents, such as specific microbe population specifically applied through bioaugmentation, can affect composting process greatly toward faster and better conversion of biodegradable material in to useful products [4]. Many biodegradation studies have focused on survival of isolated bacteria to increase the bacteria population and subsequently enhance the efficiency of biodegradation [5].…”

“…Addition of biological agents, such as specific microbe population specifically applied through bioaugmentation, can affect composting process greatly toward faster and better conversion of biodegradable material in to useful products [4]. Many biodegradation studies have focused on survival of isolated bacteria to increase the bacteria population and subsequently enhance the efficiency of biodegradation [5].The primary aim of this study is to enhance and accelerate biodegradation of biowaste by composting process in closed reactor system. Biological waste from households, originating from gardens and yards, was designated as a substrate for reactor composting.…”