期刊名称：Lecture Notes in Engineering and Computer Science
印刷版ISSN：2078-0958
电子版ISSN：2078-0966
出版年度：2018
卷号：2237&2238
页码：528-531
出版社：Newswood and International Association of Engineers
摘要：Aerobic degradation was used as a treatment
method to reduce the high chemical oxygen demand (COD)
found in Fischer-Tropsch (FT) wastewater. The compounds
investigated were short chain alcohols (SCA) and volatile fatty
acids (VFAs), they contribute up to 87.4%. When released into
the environment, such high strength COD can cause
detrimental effect to the environment. Synthetic FT
wastewater were prepared in a mineral salt solution
comprising of only SCA’s and VFA’s and a COD of 67.9
gCOD/L. Parameters investigated were temperature and
substrate concentration (COD). Bacteria found in natural
wetland situated east of Gauteng province in South Africa and
FT wastewater plant, were collected, studied and used in this
study. It was observed that degradation was favoured at 35oC
with 90% COD removal within 3 days. At substrate
concentrations of 0.13, 0.73 and 1.5%, the highest COD
reduction was 91, 49 and 24% respectively. The isolates were
sent for 16S rRNA sequence analysis. Bacillus sp. was found to
be dominant.
关键词：aerobic degradation; chemical oxygen;
demand (COD); Fischer-Tropsch effluent.
