dc.contributor.author |
Rava, Eleonora Maria Elizabeth
|
|
dc.contributor.author |
Chirwa, Evans M.N.
|
|
dc.date.accessioned |
2018-01-26T11:58:34Z |
|
dc.date.available |
2018-01-26T11:58:34Z |
|
dc.date.issued |
2017 |
|
dc.description.abstract |
Coal gasification stripped gas liquor (CGSGL) wastewater contains large quantities of complex organic and
inorganic pollutants which include phenols, ammonia, hydantoins, furans, indoles, pyridines, phthalates and
other monocyclic and polycyclic nitrogen containing aromatics, oxygen- and sulphur containing heterocyclic
compounds. Most conventional aerobic systems for coal gasification wastewater treatment are not sufficient in
reducing pollutants such as chemical oxygen demand (COD), phenols and ammonia due to the presence of
toxic and inhibitory organic compounds. The current paper reports on the degradation of aromatic compounds
and the reduction of hard COD in CGSGL using a Moving-Bed Biofilm Reactor (MBBR) system. The inoculum
contained a genetically enhanced mixed culture of Pseudomonas putida, Pseudomonas plecoglossicida,
Rhodococcus erythropolis, Rhodococcus qingshengii, Enterobacter cloacae, Enterobacter asburiae strains of
bacteria, seaweed and diatoma. Consistently high hard COD removal (>88 %) and degradation of targeted
phenolic compounds (>93 %) was achieved in the reactor with no loss of biodiversity in the consortium culture.
The performance of the reactor outside the observable range was projected using a Back-Propagation
Artificial Neural Network (BP-ANN) developed in this study. |
en_ZA |
dc.description.department |
Chemical Engineering |
en_ZA |
dc.description.librarian |
am2018 |
en_ZA |
dc.description.sponsorship |
The project was partially funded by National Research Foundation (NRF) through the Incentive Funding for
Rated Researchers Grant No. IFR170214222643 awarded to Prof Evans M.N. Chirwa of the Department of
Chemical Engineering, University of Pretoria. Buckman Africa provided funding for chemical and
microbiological analyses. |
en_ZA |
dc.description.uri |
http://www.aidic.it/cet |
en_ZA |
dc.identifier.citation |
Rava E.M.E., Chirwa E.M.N., 2017, Prediction of performance of the moving-bed biofilm pilot reactor using backpropagation
artificial neural network (bp-ann), Chemical Engineering Transactions, 61, 1189-1194 DOI: 10.3303/CET1761196. |
en_ZA |
dc.identifier.isbn |
978-88-95608-51-8 |
|
dc.identifier.issn |
2283-9216 (online) |
|
dc.identifier.other |
10.3303/CET1761196 |
|
dc.identifier.uri |
http://hdl.handle.net/2263/63771 |
|
dc.language.iso |
en |
en_ZA |
dc.publisher |
The Italian Association of Chemical Engineering |
en_ZA |
dc.rights |
© 2017, AIDIC Servizi S.r.l. |
en_ZA |
dc.subject |
Coal gasification stripped gas liquor (CGSGL) |
en_ZA |
dc.subject |
Bacteria |
en_ZA |
dc.subject |
Backpropagation |
en_ZA |
dc.subject |
Rhodococcus erythropolis |
en_ZA |
dc.subject |
Pseudomonas plecoglossicida |
en_ZA |
dc.subject |
Prediction of performance |
en_ZA |
dc.subject |
Moving bed biofilm reactors (MBBR) |
en_ZA |
dc.subject |
Heterocyclic compound |
en_ZA |
dc.subject |
Enterobacter cloacae |
en_ZA |
dc.subject |
Coal-gasification wastewaters |
en_ZA |
dc.subject |
Back-propagation artificial neural network |
en_ZA |
dc.subject |
Wastewater treatment |
en_ZA |
dc.subject |
Pollution |
en_ZA |
dc.subject |
Phenols |
en_ZA |
dc.subject |
Organic pollutants |
en_ZA |
dc.subject |
Organic compounds |
en_ZA |
dc.subject |
Nitrogen |
en_ZA |
dc.subject |
Neural networks |
en_ZA |
dc.subject |
Coal gasification |
en_ZA |
dc.subject |
Chemicals removal (water treatment) |
en_ZA |
dc.subject |
Chemical compounds |
en_ZA |
dc.subject |
Biofilms |
en_ZA |
dc.subject |
Biodiversity |
en_ZA |
dc.subject |
Aromatic compounds |
en_ZA |
dc.subject |
Ammonia |
en_ZA |
dc.subject |
Chemical oxygen demand (COD) |
en_ZA |
dc.title |
Prediction of performance of the moving-bed biofilm pilot reactor using back-propagation artificial neural network (BP-ANN) |
en_ZA |
dc.type |
Article |
en_ZA |