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Full-Text Articles in Social and Behavioral Sciences

Climate Change In The Dead Heart Of Australia, Joshua Larsen, Gerald C. Nanson, Timothy J. Cohen, Brian G. Jones, John D. Jansen, Jan-Hendrik May Dec 2015

Climate Change In The Dead Heart Of Australia, Joshua Larsen, Gerald C. Nanson, Timothy J. Cohen, Brian G. Jones, John D. Jansen, Jan-Hendrik May

Timothy Cohen

Despite the absence of large-scale glaciation, the Australian continent has experienced substantial environmental change throughout the Quaternary period. This is especially pronounced in central Australia, where one seventh of the continent is drained internally to the depocentre, and lowest point in Australia, Lake Eyre (Figure 1). Research has shown that at one time, large sandy braided and meandering rivers carried water through dunefields to a large freshwater lake system. Today, the rivers are hostage to the dunefield, and floodwaters might only reach Lake Eyre once every ten years or so. In order to understand the development of this arid desert …


Sources, Distribution, And Acidity Of Sulfate-Ammonium Aerosol In The Arctic In Winter-Spring, Jenny A. Fisher, Daniel J. Jacob, Q Wang, Roya Bahreini, C C. Carouge, M J. Cubison, Jack E. Dibb, Thomas Diehl, J L. Jimenez, E M. Leibensperger, Zifeng Lu, Marcel B.J Meinders, H. O T. Pye, Patricia K. Quinn, Sangeeta Sharma, David G. Streets, Aaron Van Donkelaar, R M. Yantosca Feb 2015

Sources, Distribution, And Acidity Of Sulfate-Ammonium Aerosol In The Arctic In Winter-Spring, Jenny A. Fisher, Daniel J. Jacob, Q Wang, Roya Bahreini, C C. Carouge, M J. Cubison, Jack E. Dibb, Thomas Diehl, J L. Jimenez, E M. Leibensperger, Zifeng Lu, Marcel B.J Meinders, H. O T. Pye, Patricia K. Quinn, Sangeeta Sharma, David G. Streets, Aaron Van Donkelaar, R M. Yantosca

Jenny A Fisher

We use GEOS-Chem chemical transport model simulations of sulfate–ammonium aerosol data from the NASA ARCTAS and NOAA ARCPAC aircraft campaigns in the North American Arctic in April 2008, together with longer-term data from surface sites, to better understand aerosol sources in the Arctic in winter–spring and the implications for aerosol acidity. Arctic pollution is dominated by transport from mid-latitudes, and we test the relevant ammonia and sulfur dioxide emission inventories in the model by comparison with wet deposition flux data over the source continents. We find that a complicated mix of natural and anthropogenic sources with different vertical signatures is …


Riverine Source Of Arctic Ocean Mercury Inferred From Atmospheric Observations, Jenny A. Fisher, Daniel J. Jacob, Anne L. Soerensen, Helen M. Amos, Alexandra Steffen, Elsie M. Sunderland Feb 2015

Riverine Source Of Arctic Ocean Mercury Inferred From Atmospheric Observations, Jenny A. Fisher, Daniel J. Jacob, Anne L. Soerensen, Helen M. Amos, Alexandra Steffen, Elsie M. Sunderland

Jenny A Fisher

Methylmercury is a potent neurotoxin that accumulates in aquatic food webs. Human activities, including industry and mining, have increased inorganic mercury inputs to terrestrial and aquatic ecosystems. Methylation of this mercury generates methylmercury, and is thus a public health concern. Marine methylmercury is a particular concern in the Arctic, where indigenous peoples rely heavily on marine-based diets. In the summer, atmospheric inorganic mercury concentrations peak in the Arctic, whereas they reach a minimum in the northern mid-latitudes. Here, we use a global three-dimensional ocean–atmosphere model to examine the cause of this Arctic summertime maximum. According to our simulations, circumpolar rivers …


North Polar Frontal Clouds And Dust Storms On Mars During Spring And Summer, Huiqun Wang, Jenny A. Fisher Feb 2015

North Polar Frontal Clouds And Dust Storms On Mars During Spring And Summer, Huiqun Wang, Jenny A. Fisher

Jenny A Fisher

The complete archive of Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) Mars Daily Global Maps (MDGM) are used to study north polar clouds and dust storms that exhibit frontal structures during the spring and summer (Ls 0–180°). Results show that frontal events generally follow the edge of the polar cap during spring and mid/late summer with a gap in the distribution in early summer. The exact duration and timing of the gap vary from year to year. Twww.lw20.comen to twenty percent of spring and summer time frontal events exhibit complex morphologies. Distinct temperature signatures are associated with features observed …


A Survey Of Martian Dust Devil Activity Using Mars Global Surveyor Mars Orbiter Camera Images, Jenny A. Fisher, Mark I. Richardson, Claire E. Newman, Mark A. Szwast, Chelsea Graf, Shabari Basu, Shawn P. Ewald, Anthony D. Toigo, R. John Wilson Feb 2015

A Survey Of Martian Dust Devil Activity Using Mars Global Surveyor Mars Orbiter Camera Images, Jenny A. Fisher, Mark I. Richardson, Claire E. Newman, Mark A. Szwast, Chelsea Graf, Shabari Basu, Shawn P. Ewald, Anthony D. Toigo, R. John Wilson

Jenny A Fisher

A survey of dust devils using the Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) wide- and narrow-angle (WA and NA) images has been undertaken. The survey comprises two parts: (1) sampling of nine broad regions from September 1997 to July 2001 and (2) a focused seasonal monitoring of variability in the Amazonis region, an active dust devil site, from March 2001 to April 2004. For part 1, dust devils were identified in NA and WA images, and dust devil tracks were identified in NA images. Great spatial variability in dust devil occurrence is highlighted, with Amazonis Planitia being the …


Exploring Co Pollution Episodes Observed At Rishiri Island By Chemical Weather Simulations And Airs Satellite Measurements: Long-Range Transport Of Burning Plumes And Implications For Emissions Inventories, Hiroshi Tanimoto, Keiichi Sato, Tim Butler, Mark G. Lawrence, Jenny A. Fisher, M Kopacz, Robert M. Yantosca, Yugo Kanaya, Shungo Kato, Tomoaki Okuda, Shigeru Tanaka, Jiye Zeng Feb 2015

Exploring Co Pollution Episodes Observed At Rishiri Island By Chemical Weather Simulations And Airs Satellite Measurements: Long-Range Transport Of Burning Plumes And Implications For Emissions Inventories, Hiroshi Tanimoto, Keiichi Sato, Tim Butler, Mark G. Lawrence, Jenny A. Fisher, M Kopacz, Robert M. Yantosca, Yugo Kanaya, Shungo Kato, Tomoaki Okuda, Shigeru Tanaka, Jiye Zeng

Jenny A Fisher

The summer of 2003 was an active forest fire season in Siberia. Several events of elevated carbon monoxide (CO) were observed at Rishiri Island in northern Japan during an intensive field campaign in September 2003. A simulation with a global chemistry-transport model is able to reproduce the general features of the baseline levels and variability in the observed CO, and a source attribution for CO in the model suggests that the contribution from North Asia dominated, accounting for approximately 50% on average, with contributions of 7% from North America and 8% from Europe and 30% from oxidation of hydrocarbons. With …


Evidence Of Enso Mega-Drought Triggered Collapse Of Prehistory Aboriginal Society In Northwest Australia, Hamish Mcgowan, Samuel K. Marx, P Moss, Andrew Hammond Aug 2014

Evidence Of Enso Mega-Drought Triggered Collapse Of Prehistory Aboriginal Society In Northwest Australia, Hamish Mcgowan, Samuel K. Marx, P Moss, Andrew Hammond

Samuel K Marx

The Kimberley region of northwest Australia contains one of the World's largest collections of rock art characterised by two distinct art forms; the fine featured anthropomorphic figures of the Gwion Gwion or Bradshaw paintings, and broad stroke Wandjina figures. Luminescence dating of mud wasp nests overlying Gwion Gwion paintings has confirmed an age of at least 17,000 yrs B.P. with the most recent dates for these paintings from around the mid-Holocene (5000 to 7000 yrs B.P.). Radiocarbon dating indicates that the Wandjina rock art then emerged around 3800 to 4000 yrs B.P. following a hiatus of at least 1200 yrs. …


Dust Transport And Deposition In A Superhumid Environment, Samuel K. Marx, Hamish A. Mcgowan Aug 2014

Dust Transport And Deposition In A Superhumid Environment, Samuel K. Marx, Hamish A. Mcgowan

Samuel K Marx

Contemporary rates of dust deposition monitored along a 300-km section of the superhumid West Coast of New Zealand's South Island are presented. In this setting, dust is entrained primarily from the dry channels of braided glaciofluvial rivers that drain the western slopes of the Southern Alps. Measured dust deposition ranged between 0.21 and 118.9 kg-1 ha -1 month-1, which is similar to dust deposition rates monitored in arid and semiarid environments. However, these are not considered to be sufficient for present day loess genesis. Dust deposition was highest in summer because of the greater frequency of favourable dust transporting winds, …


Evidence Of Solar And Tropical-Ocean Forcing Of Hydroclimate Cycles In Southeastern Australia For The Past 6500 Years, Hamish A. Mcgowan, Samuel K. Marx, Joshua Soderholm, John Denholm Aug 2014

Evidence Of Solar And Tropical-Ocean Forcing Of Hydroclimate Cycles In Southeastern Australia For The Past 6500 Years, Hamish A. Mcgowan, Samuel K. Marx, Joshua Soderholm, John Denholm

Samuel K Marx

Evidence of solar and tropical‐ocean forcing of climate cycles has been found in numerous palaeoclimate records. Numerical modelling studies show physical mechanisms by which direct and indirect solar forcing may affect climate, while there is mounting evidence of solar forcing of tropical ocean‐atmosphere teleconnections. This study has developed a 6500 year record of dust deposition, a proxy for regional hydroclimate variability for the Snowy Mountains region of Australia. Spectral analysis of the record provides evidence of statistically significant cycles in dust deposition of 35–43 years, 62–73 years, 161 years and 2200 years. These correlate with variability in solar irradiance and …


New Data On Occurrences Of The Devonian Rugose Coral Calceola In Belgium, Anthony J. Wright, M Coen-Aubert, P Bultynck, A P. Van Viersen Apr 2014

New Data On Occurrences Of The Devonian Rugose Coral Calceola In Belgium, Anthony J. Wright, M Coen-Aubert, P Bultynck, A P. Van Viersen

Anthony Wright

Opercula and corallites of Calceola sandalina from the late Eifelian and early Givetian (Middle Devonian) Hanonet Formation of Belgium are illustrated. The few previous illustrations of calceoloid corals from the Devonian of Belgium did not include opercula showing the generically diagnostic morphological features, so for the first time the presence of the genus and species in Belgium is confirmed. One important corallite shows the alar septum and insertion of septa on the external surface of the counter face adjacent to the alar septum.


Late Llandovery (Early Silurian) Dendroid Graptolites From The Cotton Formation Near Forbes, New South Wales, R B. Rickards, Anthony J. Wright, G Thomas Apr 2014

Late Llandovery (Early Silurian) Dendroid Graptolites From The Cotton Formation Near Forbes, New South Wales, R B. Rickards, Anthony J. Wright, G Thomas

Anthony Wright

A well-preserved dendroid graptolite fauna of Early Silurian (late Llandovery: probable turriculatus graptolite zone) age is described from the Cotton Formation near Forbes, New South Wales. A possible rhabdopleuran hemichordate is described from Australia for the fi rst time. The fauna consists of 13 taxa as follows: Dendrograptus sp. aff. D. avonleaensis, Dictyonema zalasiewiczi sp. nov., Dictyonema sp. aff. D. paululum australis, Dictyonema paululum australis, Dictyonema sp. aff. D. sp. cf. D. venustus of Bulman (?ssp. nov.), Dictyonema venustum, Dictyonema sp. cf. D. falciferum, Callograptus bridgecreekensis, Callograptus rigbyae, Callograptus sp. aff. C. ulahensis, Stelechocladia sp. cf. S. praeattenuata, Acanthograptus praedeckeri …


Phylum Arthropoda, Subphylum Trilobitomorpha: Trilobites, Anthony J. Wright, Roger A. Cooper Apr 2014

Phylum Arthropoda, Subphylum Trilobitomorpha: Trilobites, Anthony J. Wright, Roger A. Cooper

Anthony Wright

This volume is the second of three that provide a complete review and inventory of New Zealand's entire living and fossil biodiversity - an international effort involving more than 220 New Zealand and overseas specialists and the most comprehensive of its kind in the world. Together, the three volumes will list every one of the almost 55,000 known species of New Zealand's animals, plants, fungi and micro-organisms. Volume 2 mostly deals with the major branch of the animal kingdom known as Ecdysozoa (moulting animals), which includes arachnids, centipedes and millipedes, crustaceans and insects. It also includes the enigmatic phylum Chaetognatha …


Emsian (Early Devonian) Tetracorals (Cnidaria) From Grattai Creek, New South Wales, Anthony Wright Apr 2014

Emsian (Early Devonian) Tetracorals (Cnidaria) From Grattai Creek, New South Wales, Anthony Wright

Anthony Wright

The tetracoral species Phillipsastrea scotti sp. nov. and Trapezophyllum grattaiensis sp. nov. are described from strata assigned to the middle Emsian (nothoperbonus to inversus conodont zones: Early Devonian) part of the Cunningham Formation at Grattai Creek, west of Mudgee, N.S.W. For comparison with the former, Phillipsastrea oculoides, from the Early Devonian (late Pragian or early Emsian) Garra Formation in the Wellington area of N.S.W., is revised on the basis of the type material; new longitudinal thin sections show indisputable horseshoe dissepiments and trabecular fans in this species.


Recent Discoveries And A Review Of The Ordovician Faunas Of New Zealand, Ian Percival, Roger Cooper, Yong Yi Zhen, J Simes, Anthony Wright Apr 2014

Recent Discoveries And A Review Of The Ordovician Faunas Of New Zealand, Ian Percival, Roger Cooper, Yong Yi Zhen, J Simes, Anthony Wright

Anthony Wright

Fossiliferous Ordovician rocks are of limited extent in New Zealand, being largely restricted to northwest Nelson and Westland in the northern part of the South Island, with some isolated exposures at the southern extremity of Fiordland (Fig. 1). The known stratigraphic record, though incomplete, covers much of the period, and new information from study and revision of old collections (mostly dating from the 1960s and 1970s) continues to fill in the gaps. These data are critical to a better understanding of New Zealand’s place in the Ordovician world, when it occupied an isolated position facing the palaeo-Pacific Ocean offshore to …


Martellia And Associated Middle Ordovician Brachiopods From The Katkoyeh Formation, East-Central Iran, Ian G. Percival, Anthony J. Wright, Robert S. Nicoll, Mir Alireza Hamedi Apr 2014

Martellia And Associated Middle Ordovician Brachiopods From The Katkoyeh Formation, East-Central Iran, Ian G. Percival, Anthony J. Wright, Robert S. Nicoll, Mir Alireza Hamedi

Anthony Wright

The palaeontology and stratigraphy of the Ordovician if Iran has been the subject of considerable research over the past 15 years, revealing biogeographically significant faunas whose affinities are shared both with peri-Gondwanian terranes and continental blocks. Documentation of the composition and ages of these faunas, many of which are still poorly known, is critical to constraining palaeogeographic reconstructions of the time.


Septal Architecture And Palaeoecology Of Calceola (Cnidaria, Calceolidae), With Comments On The Phylogeny Of Devonian Operculate Tetracorals, Anthony J. Wright Apr 2014

Septal Architecture And Palaeoecology Of Calceola (Cnidaria, Calceolidae), With Comments On The Phylogeny Of Devonian Operculate Tetracorals, Anthony J. Wright

Anthony Wright

In Calceola sandalina the full complement of counter major septa was established very low in the calyx, extending from the counter septum across to the edge of the counter face. At about mid-height of the calyx, a counter-lateral major septum was generated on either side of and from the counter septum. Serial minor septal insertion was initiated adjacent to the counter-lateral septa at a slightly later stage and continued throughout the subsequent ontogeny of the corallite, with minor septa (schizosepta?) arising on the median side of major septa and bifurcating from them. Alar fossulae are seen in the calyx of …


New Genera Of Early Devonian Calceoloid Corals From Australia And France, Anthony Wright Apr 2014

New Genera Of Early Devonian Calceoloid Corals From Australia And France, Anthony Wright

Anthony Wright

Two new Early Devonian genera and species of the family Calceolidae, phylum Cnidaria, are erected; these are Richtereola disruptus n. gen., n. sp., from the Emsian (perbonus conodont zone) of the Taemas area, NSW, Australia and from the Emsian Izarne Formation (gronbergi conodont zone) of the Montagne Noire, southern France; and Savageola unicus n. gen., n. sp. from the Lochkovian (eurekaensis conodont zone) Mandagery Park Formation at Manildra, NSW, Australia. These taxa are essentially defined on opercular characters; well-preserved opercula are essential for confident generic assignment of calceoloid material. Savageola is known only from eastern Australia, but Richtereola is known …


The Asaphid Trilobite Ogygites Collingwoodensis Reed, 1926 From The Late Ordovician Of New Zealand, Anthony J. Wright Apr 2014

The Asaphid Trilobite Ogygites Collingwoodensis Reed, 1926 From The Late Ordovician Of New Zealand, Anthony J. Wright

Anthony Wright

The New Zealand asaphid trilobite Ogygites collingwoodensis is redescribed on the basis of the type material and new collections, and its assignment to Basiliella is confirmed. The species occurs with the trinucleid trilobite Incaia bishopi and graptolites indicative of the Nemagraptus gracilis zone (early Late Ordovician, early Sandbian/Gisbornian), mostly as disarticulated material in intensely bioturbated siltstone of the Douglas Formation. Comparison with coeval faunas is limited due to the low diversity of this fauna, but B. collingwoodensis shows some limited similarity to contemporaneous eastern Australian faunas, whereas Incaia also occurs in South America and South China.


Stratigraphic Distribution And Suggested Evolution Of Dendroid Graptolites From The Silurian Of Eastern Australia, Barrie Rickards, Anthony Wright Apr 2014

Stratigraphic Distribution And Suggested Evolution Of Dendroid Graptolites From The Silurian Of Eastern Australia, Barrie Rickards, Anthony Wright

Anthony Wright

Five evolutionary lineages are proposed for Silurian species of the benthic dendroid graptolite genus Dictyonema, based largely on the exceptional eastern Australian records of the genus, comprising at least 25 species. These are: A, the delicatulum lineage with bifurcating ventral autothecal apertural spines; B, the paululum lineage with single ventral apertural spines or processes; C, the elegans lineage with isolated thecal apertures ± processes; D, the sherrardae lineage with dorsal apertural processes; and E, the venustum lineage with simple autothecal apertures. Brief comments are also made on other dendroid genera occurring in Australian strata, namely: Acanthograptus, Koremagraptus, Callograptus, Dendrograptus, Stelechocladia, …


Darriwilian (Middle Ordovician) Conodonts From Thompson Creek, Nelson Province, New Zealand, Yong Yi Zhen, Ian G. Percival, Roger A. Cooper, John E. Simes, Anthony J. Wright Apr 2014

Darriwilian (Middle Ordovician) Conodonts From Thompson Creek, Nelson Province, New Zealand, Yong Yi Zhen, Ian G. Percival, Roger A. Cooper, John E. Simes, Anthony J. Wright

Anthony Wright

A well preserved Middle Ordovician conodont fauna of 24 species has been recovered from seven samples of a small limestone lens exposed in Thompson Creek, northwest of Nelson, on the South Island of New Zealand. The presence of Histiodella holodentata, Baltoniodus? sp., Paroistodus originalis, P. horridus, Periodon macrodentatus, Protopanderodus sp. cf. P. varicostatus, Costiconus ethingtoni and Venoistodus balticus in the fauna indicates a Darriwilian (late Da2 to mid Da3) age. The occurrence of Ansella jemtlandica, Baltoniodus? sp., Periodon macrodentatus, Spinodus sp., Spinodus? sp. and Histiodella holodentata suggests a relatively deeper water (outer shelf to slope) setting, comparable with contemporaneous faunas, …


Middle Ordovician (Darriwilian) Brachiopods And Trilobites From Thompson Creek, Northwest Nelson, New Zealand, Ian G. Percival, Anthony J. Wright, Roger A. Cooper, John E. Simes, Yong Yi Zhen Apr 2014

Middle Ordovician (Darriwilian) Brachiopods And Trilobites From Thompson Creek, Northwest Nelson, New Zealand, Ian G. Percival, Anthony J. Wright, Roger A. Cooper, John E. Simes, Yong Yi Zhen

Anthony Wright

A well preserved Middle Ordovician shelly fauna, represented by twelve species of lingulate brachiopods and one trilobite genus, was recovered from an allochthonous limestone lens exposed in Thompson Creek, northwest of Nelson, on the South Island of New Zealand. The stratigraphic setting is unclear as the limestone is situated in the Takaka Terrane adjacent to the Anatoki Fault, separating this terrane from the Buller Terrane. The original depositional environment of the limestone is interpreted as relatively deep water (outer shelf to upper slope). Lingulate brachiopods described include the new species Hyperobolus? thompsonensis sp. nov., Cyrtonotreta robusta sp. nov., Scaphelasma paturauensis …


Holocene Palaeofire Records In A High-Level, Proximal Valley-Fill (Wilson Bog), Mount Lofty Ranges, South Australia, Solomon Buckman, Katherine Brownlie, Robert Bourman, C. Murray-Wallace, Rowena Morris, Terry Lachlan, Richard Roberts, Lee Arnold, J. Cann Jul 2013

Holocene Palaeofire Records In A High-Level, Proximal Valley-Fill (Wilson Bog), Mount Lofty Ranges, South Australia, Solomon Buckman, Katherine Brownlie, Robert Bourman, C. Murray-Wallace, Rowena Morris, Terry Lachlan, Richard Roberts, Lee Arnold, J. Cann

Solomon Buckman Dr.

No abstract provided.


Traces From The Past: The Cenozoic Regolith And Intraplate Neotectonic History Of The Gun Emplacement, A Ferricreted Bench On The Western Margin Of The Mt Lofty Ranges, South Australia, Robert Bourman, Solomon Buckman, Brad Pillans, Martin Williams, Frances Williams Jul 2013

Traces From The Past: The Cenozoic Regolith And Intraplate Neotectonic History Of The Gun Emplacement, A Ferricreted Bench On The Western Margin Of The Mt Lofty Ranges, South Australia, Robert Bourman, Solomon Buckman, Brad Pillans, Martin Williams, Frances Williams

Solomon Buckman Dr.

No abstract provided.


Late Quaternary Fire Regimes Of Australasia, S. Mooney, S. Harrison, P. Bartlein, A.-L. Daniau, J. Stevenson, K. Brownlie, Solomon Buckman, Matthew Cupper, Jonathon Luly, M. Black, Eric Colhoun, D. D'Costa, John Dodson, S. Haberle, Geoffrey Hope, P. Kershaw, C. Kenyon, M. Mckenzie, N. Williams Jul 2013

Late Quaternary Fire Regimes Of Australasia, S. Mooney, S. Harrison, P. Bartlein, A.-L. Daniau, J. Stevenson, K. Brownlie, Solomon Buckman, Matthew Cupper, Jonathon Luly, M. Black, Eric Colhoun, D. D'Costa, John Dodson, S. Haberle, Geoffrey Hope, P. Kershaw, C. Kenyon, M. Mckenzie, N. Williams

Solomon Buckman Dr.

No abstract provided.


Mount Augustus Geology And Geomorphology, Robert Bourman, Cliff Ollier, Solomon Buckman Jul 2013

Mount Augustus Geology And Geomorphology, Robert Bourman, Cliff Ollier, Solomon Buckman

Solomon Buckman Dr.

No abstract provided.


Fouling Resistant Compact Hollow-Fiber Module With Spacer For Submerged Membrane Bioreactor Treating High Strength Industrial Wastewater, Faisal I. Hai, Kazuo Yamamoto, Kensuke Fukushi, Fumiyuki Nakajima Jul 2013

Fouling Resistant Compact Hollow-Fiber Module With Spacer For Submerged Membrane Bioreactor Treating High Strength Industrial Wastewater, Faisal I. Hai, Kazuo Yamamoto, Kensuke Fukushi, Fumiyuki Nakajima

Faisal I Hai

Long-term investigations carried out in a submerged membrane fungi reactor treating textile wastewater revealed the excellent fouling prevention capacity of spacer-filled hollow-fiber modules. The type and arrangement of the spacers governed the overall rigidity of the modules and played the critical role in avoidance of sludge intrusion and retrieval of the original state (cleaning). A hybrid module (fiber packing density = 61.5%, surface area = 1.07 m2) obtained by winding a rigid spacer (thickness = 1 mm, opening = 7 mm × 7 mm) on the surface of a module originally containing a flexible thin spacer (opening = 1 mm …


Performance Of Newly Developed Hollow Fiber Module With Spacer In Integrated Anaerobic–Aerobic Fungi Reactor Treating Textile Wastewater, Faisal I. Hai, Kazuo Yamamoto, Kensuke Fukushi Jul 2013

Performance Of Newly Developed Hollow Fiber Module With Spacer In Integrated Anaerobic–Aerobic Fungi Reactor Treating Textile Wastewater, Faisal I. Hai, Kazuo Yamamoto, Kensuke Fukushi

Faisal I Hai

A submerged microfiltration membrane bioreactor implementing the white-rot fungus Coriolus versicolor was developed for effective treatment of textile dye wastewater [1]. In that system membrane fouling was precluded by placing a bundle of hollow fibers within a pre-filtration assembly, so as to avoid direct deposition of sludge onto it, together with its periodic high-pressure back-washing and low-dose chemical back-flushing. However, the extreme vulnerability of the bare membrane used in that study to inter-fibral deposition of sludge leading to merging of fibers indicated necessity of development of an appropriate module so that the proposed system may enjoy more flexibility in terms …


Development Of A Submerged Membrane Fungi Reactor For Textile Wastewater Treatment, Faisal I. Hai, Kazuo Yamamoto, Kensuke Fukushi Jul 2013

Development Of A Submerged Membrane Fungi Reactor For Textile Wastewater Treatment, Faisal I. Hai, Kazuo Yamamoto, Kensuke Fukushi

Faisal I Hai

A submerged microfiltration membrane bioreactor implementing the white-rot fungus Coriolus versicolor was developed for the treatment of textile dye wastewater following explorations with different fouling-prevention techniques. The optimum combination ensuring permeate quality and precluding membrane fouling comprises of placing a bundle of hollow fibers within a non-woven coarse-pore (50–200 μm) mesh cage, so as to avoid direct deposition of sludge onto it, together with arrangements for its periodic high-pressure back-washing (3 s/10 min) and chemical back-flushing (100 ml/m2, every third day). Under controlled temperature (29±1°C) and pH (4.5±0.2), and applied HRT and an average flux of 15 h and 0.021 …


Hybrid Treatment Systems For Dye Wastewater, Faisal I. Hai, Kazuo Yamamoto, Kensuke Fukushi Jul 2013

Hybrid Treatment Systems For Dye Wastewater, Faisal I. Hai, Kazuo Yamamoto, Kensuke Fukushi

Faisal I Hai

Virtually all the known physico-chemical and biological techniques have been explored for treatment of extremely recalcitrant dye wastewater; none, however, has emerged as a panacea. A single universally applicable end-of-pipe solution appears to be unrealistic, and combination of appropriate techniques is deemed imperative to devise technically and economically feasible options. An in-depth evaluation of wide range of potential hybrid technologies delineated in literature along with plausible analyses of available cost information has been furnished. In addition to underscoring the indispensability of hybrid technologies, this paper also endorses the inclusion of energy and water reuse plan within the treatment scheme, and …


Membrane Coupled Fungi Reactor - An Innovative Approach To Bioremediation Of Hazardous Dye Wastewater, Faisal I. Hai, Kazuo Yamamoto, Kensuke Fukushi Jul 2013

Membrane Coupled Fungi Reactor - An Innovative Approach To Bioremediation Of Hazardous Dye Wastewater, Faisal I. Hai, Kazuo Yamamoto, Kensuke Fukushi

Faisal I Hai

Virtually all the known physico-chemical and biological techniques have been explored for treatment of extremely recalcitrant dye wastewater; none, however, has emerged as a panacea. A single universally applicable end-of-pipe solution appears to be unrealistic, and combination of appropriate techniques is deemed imperative to devise technically and economically feasible options. An in-depth evaluation of wide range of potential hybrid technologies delineated in literature along with plausible analyses of available cost information has been furnished. In addition to underscoring the indispensability of hybrid technologies, this paper also endorses the inclusion of energy and water reuse plan within the treatment scheme, and …