Granular Activated Carbon (GAC) adsorption in tertiary wastewater treatment : experiments and models

Wastewater treatment has always been a major concern in the developed countries. Over the last few decades, activated carbon adsorption has gained importance as an alternative tertiary wastewater treatment and purification process. In this study, granular activated carbon (GAC) adsorption was evaluated in terms of total organic carbon (TOC) removal from low strength synthetic wastewater. This paper provides details on adsorption experiments conducted on synthetic wastewater to develop suitable adsorption isotherms. Although the inorganics used in the synthetic wastewater solution had an overall unfavourable effect on adsorption of organics, the GAC adsorption system was found to be effective in removing TOC from the wastewater. This study showed that equation of state (EOS) theory was able to fit the adsorption isotherm results more precisely than the most commonly used Freundlich isotherm. Biodegradation of the organics with time was the most crucial and important aspect of the system and it was taken into account in determining the isotherm parameters. Initial organic concentration of the wastewater was the determining factor of the model parameters, and hence the isotherm parameters were determined covering a wide range of initial organic concentrations of the wastewater. As such, the isotherm parameters derived using the EOS theory could predict the batch adsorption and fixed bed adsorption results of the multi-component system successfully. The isotherm parameters showed a significant effect on the determination of the mass transfer coefficients in batch and fixed bed systems.

The apparent paradox of colour variation in aposematic poison frogs

Toxic prey warn their predators about their unprofitability with conspicuous colour patterns that are easily learned and remembered by predators if they are uniform within a population. I studied a variable, warningly-coloured poison frog in the wild and found that such variation in colours may be related to mating advantages, parental duties, microhabitat selection and different behavioural strategies.

A study of building materials to create an identity of traditional Balinese architecture for urban housing

The use or local architecture characteristics is regulated by the spatial planning and building code of Indonesia. Balinese tmditional architecture has existed, coloured the traditional architecture of Indonesia and can be used as Bali's identity that is different from other regions in Indonesia.On the other hand, the cost of such building is high and most of people in urban areas are unable to afford to build in the traditional architecture style, especially in the residential housing sector .. Some of the major components that determine the price of housing units are the price of land, building materials, labour and technology. In developing countries, the first and second components that affect the unit price of the building are building materials representing about 70% and skilled labour respectively (Ural, 1980). Based on this, a good strategy to adopt in order to minimize the price is to manipulate these two components.Based on a literature review and observation, this study will explain which aspects of building material technology can reduce the building cost and how it can maintain the identity of local architecture.The results of the study indicate that the building material can be created to both reduce cost and adopt traditional architecture style as an identity. The materials have some shapes that can be joined easily to facilitate the skill of the worker and yet still be able to adopt the forms of traditional Balinese architecture.

RGB Wattle Park chalet

New technologies have arguably displaced the hegemony of painting within the hierarchies of contemporary art. Projectors and other digital imaging technologies in particular continue to expand the contemporary artist’s aesthetic and conceptual possibilities beyond canvas, paper, and stone. Yet painting - the practice of smearing coloured mud about - far from being superseded, simply continues to cannibalise these powerful technologies extruding them into its own analogue processes. Whether intentionally or as an by-product of this cannibalisation, painting tends to create a critical distance in which the tacit aspects of these technologies – their representational language and ‘special effects’ - are made fully visible. Of course 'easel' painting practices persist not only to critique new technologies. Rather new technologies inevitably fold back into the now souped-up vocabularies of contemporary painting, expanding the medium’s physical boundaries, formal strategies, and modes of display.

YGR Fontainebleau

New technologies have arguably displaced the hegemony of painting in the hierarchies of contemporary art. Projectors and other digital imaging tools in particular continue to expand the artist’s aesthetic and conceptual possibilities beyond canvas, paper, and stone. Yet painting, (the practice of smearing coloured mud about) far from being marginalised, simply continues to cannibalise these new technologies extruding them into its own analogue processes. Whether intentionally or as a by-product of this cannibalisation, painting creates a critical distance in which the tacit aspects of these technologies – their representational language and ‘special effects’ - are made fully visible. Of course ‘traditional’ easel painting practices persist not just to critique new technologies. Digital imaging technologies inevitably feed back into the souped-up vocabularies of contemporary painting, expanding the medium’s physical boundaries, formal strategies, and modes of display. The work for this project explores the ways in which projection and virtual geographical mapping invite new configurations for the practice of landscape painting.

YGR Warrandyte

New technologies have arguably displaced the hegemony of painting in the hierarchies of contemporary art. Projectors and other digital imaging tools in particular continue to expand the artist’s aesthetic and conceptual possibilities beyond canvas, paper, and stone. Yet painting, (the practice of smearing coloured mud about) far from being marginalised, simply continues to cannibalise these new technologies extruding them into its own analogue processes. Whether intentionally or as an by-product of this cannibalisation, painting creates a critical distance in which the tacit aspects of these technologies – their representational language and ‘special effects’ - are made visible. Of course ‘traditional’ easel painting practices persist not just to critique new technologies. Digital imaging technologies inevitably feed back into the souped-up vocabularies of contemporary painting, expanding the medium’s physical boundaries, formal strategies, and modes of display. The work for this project explores the ways in which projection and virtual geographical mapping invite new configurations for the practice of landscape painting.

Rare earth cinnamates and their corrosion inhibition mechanisms for AS1020 steel

Speciation of the inhibitors lanthanum 2-hydroxy cinnamate and lanthanum 3-hydroxy cinnamate in solution has been evaluated and compared to the speciation of lanthanum 4-hydroxy cinnamate. The results have been correlated with corrosion inhibition efficiency for AS1020 steel in an aqueous chloride solution using a combination of analytical tools such as nuclear magnetic resonance (NMR) spectroscopy, electrospray mass spectrometry (ESMS), potentiodynamic polarisation.

Go! Melbourne in the Sixties

What were the 1960s really like in Melbourne? Was it just great music, brightly coloured clothes and The Pill? Or was there something deeper and perhaps more insidious happening? This fab new book takes a close look at the many cultural changes of the Sixties and how they affected the Victorian capital - and questions modern-day views about the way times actually did 'a' change'. Go! Melbourne in the Sixties covers defining moments like the visit of The Beatles, the end of the six o'clock closing, political activism, Jean Shrimpton at Flemington, as well as increases in tertiary study opportunities, dramatic population growth through migration and a baby-boom, and sets them in the context of a decade that many continue to see as a golden era.

Inter- and intra-beach thermal variation for Green Turtle nests on Ascension Island, South Atlantic

Nest temperatures for green turtles (Chelonia mydas) nesting on Ascension Island, South Atlantic (7°57'S 14°22'W), were examined. Temperature probes were placed into nests on two beaches, Long Beach (26 nests) and North East Bay (8 nests). Within these beaches there was relatively little thermal variation (SD of nest temperature was 0.32°C for Long Beach and 0.30°C for North East Bay). To examine inter-beach thermal variation temperature probes were buried at 55 cm on 12 beaches. Inter-beach thermal variation was large and was related to the beach albedo with the darkest beach (albedo, 016) being 4.2°C warmer than the lightest coloured beach (albedo, 0.73).

A colourful addition to the spider fauna of Victoria : the peacock spider Maratus splendens (Rainbow, 1896) (Araneae: Salticidae)

Jumping spiders belonging to the endemic Australian genus Maratus are popularly referred to as peacock spiders, so called for the remarkable courtship displays of the often brightly coloured males. Several Maratus splendens were found in Buldah State Forest, East Gippsland in 2011 and 2013, representing the first records of this species from Victoria. Until recently, this species was known only from around Sydney. While a degree of caution should be exercised whenever implying possible new distributional records based on single localities, it is considered most likely that this discovery represents a genuine expansion in the known range of Maratus splendens. Details are also provided for a previously unpublished record from the central coast of New South Wales.

Bollywood’s Australian yarn

 It’s 101 years since the birth of Bollywood, the world’s largest and most vibrant movie industry and, of course, that’s more than enough time to mature and alter, to grow arms and legs. For some time, but since the 1990s particularly, the connections between Australia and Bollywood have really taken hold. So sit back and enjoy a cinematic journey that’s sure to entertain. As a genre Bollywood has grown and developed over a period of 100 years, coloured by India’s history, politics, socio-economic conditions, culture, sensibilities, dreams, fantasies, hopes and expectations. The ever-increasing presence of the Indian diaspora in different parts of the world has helped to realise what we might think of as Bollywood’s cultural diplomacy project. Various Australian state tourism bodies have since supported Indian productions and used Bollywood stars as ambassadors to promote Australia as a welcoming nation. The 1996 film Indian has been credited for featuring the first appearance of kangaroos in Indian cinema. But I have noticed that as early as 1974, a Hindi film Majboor made first reference to Australia and its iconic boxing kangaroo. It featured Bollywood superstar Amitabh Bachchan with a poster captioned: ‘Just hop, skip and jump every Thursday to Perth Sydney’. Australia is now a hot destination for Bollywood as well as regional language film-makers, with a successful foray of films from Soldier (1998) to Bhaag Milkha Bhaag (2013). Over the past two decades, Australian films such as Holy Smoke! (1999), The Waiting City (2009), Save Your Legs! (2012), feature India, not just as a background location but as an integral part of the plot. Bollywood’s influence on Australia can be gauged by the direction of Australian film careers. Be it the Indian-Australian actress Pallavi Sharda (Besharam) or Australia’s bowling sensation Brett Lee (Asha and Friends), Mary Ann Evans – AKA Fearless Nadia, Louise Lightfoot, Tom Cowan, Bob Christo, Tania Zaetta (Salaam Namaste), Nicholas Brown (Kites), Tabrett Bethell (Dhoom 3), Rebecca Breeds (Bhaag Milkha Bhaag), Kristina Akheeva (Yamla Pagla Deewana 2), Emma Brown Garett (Yamala Pagla Deewana), Vimala Raman (Mumbai Mirror), Anusha Dandekar (Delhi Belly), and Maheep Sandhu (Shivam). In this paper I would focus on the journeys and stories of actors, chiefly Fearless Nadia, Bob Christo, and Pallavi Sharda; and also compare a few Bollywood films, particularly Kya Kehna (2000) and Salaam Namaste (2005) made on same theme but set in India and Australia respectively, to show how Australia as has been presented as sexually liberating, visually romantic, and fantastical land of beaches and beauties.

The Anonymous Portrait

1. 'MotherDaughter', Six works, 75 cm x 75 cm each, watercolour and ink wash, charcoal, graphite, photocopy transfer, on Arches 300gsm 2. 'MotherDaughter II'. One work made up of 15 images, 30 cm x 37 cm each, watercolour and ink wash, charcoal, graphite, eye-shadow powders, photocopy transfer, on Arches 300gsm. 3. 'MotherSon'. One work made up of 15 images, 30 cm x 37 cm each, black and coloured photocopy transfers, on Arches 300gsm. 4. 'MotherSon II'. One work made up of 8 60 cm x 40.5 cm each, black and coloured photocopy transfers, on Arches 300gsm. 5. 'MotherSon III'. One work made up of 6 images, 60 cm x 40.5 cm each, black and coloured photocopy transfers, on Arches 300gsm. 6. 'FatherDaughter'. One work made up of fourteen images, 37.5 cm x 52.5 cm each, ink and watercolour wash, photocopy transfer, charcoal and graphite, on Arches 300gsm. 7. 'his/ her'. Twenty-six bound books, 25 cm x 23 cm x 1.5 cm each when closed, letterpress text and facial imprints (eye-shadow powders), charcoal, on Magnani Velata Arvorio 210gsm. 7. 'Closed Book'. Ten books comprising 10 to 12 drawings, 16.5 cm x 8 cm each image, photocopy transfer, charcoal, on Arches 300gsm.

Effects of rising temperature on the viability of an important sea turtle rookery

A warming world poses challenges for species with temperature-dependent sex determination, including sea turtles, for which warmer incubation temperatures produce female hatchlings. We combined in situ sand temperature measurements with air temperature records since 1850 and predicted warming scenarios from the Intergovernmental Panel on Climate Change to derive 250-year time series of incubation temperatures, hatchling sex ratios, and operational sex ratios for one of the largest sea turtles rookeries globally (Cape Verde Islands, Atlantic). We estimate that light-coloured beaches currently produce 70.10% females whereas dark-coloured beaches produce 93.46% females. Despite increasingly female skewed sex ratios, entire feminization of this population is not imminent. Rising temperatures increase the number of breeding females and hence the natural rate of population growth. Predicting climate warming impacts across hatchlings, male-female breeding ratios and nesting numbers provides a holistic approach to assessing the conservation concerns for sea turtles in a warming world. © 2014 Macmillan Publishers Limited.

Visual effects in great bowerbird sexual displays and their implications for signal design

It is often assumed that the primary purpose of a male's sexual display is to provide information about quality, or to strongly stimulate prospective mates, but other functions of courtship displays have been relatively neglected. Male great bowerbirds (Ptilonorhynchus nuchalis) construct bowers that exploit the female's predictable field of view (FOV) during courtship displays by creating forced perspective illusions, and the quality of illusion is a good predictor of mating success. Here, we present and discuss two additional components of male courtship displays that use the female's predetermined viewpoint: (i) the rapid and diverse flashing of coloured objects within her FOV and (ii) chromatic adaptation of the female's eyes that alters her perception of the colour of the displayed objects. Neither is directly related to mating success, but both are likely to increase signal efficacy, and may also be associated with attracting and holding the female's attention. Signal efficacy is constrained by trade-offs between the signal components; there are both positive and negative interactions within multicomponent signals. Important signal components may have a threshold effect on fitness rather than the often assumed linear relationship.

Degradation of organic dyes by P25-reduced graphene oxide: influence of inorganic salts and surfactants

Treatment of coloured effluent treatment is a major issue for the textile industry. In this study, catalyst P25-graphene was prepared and applied for degrading dye from an aqueous solution. Three types of dyes were selected to determine the feasibility of the catalyst for the dye degradation, including sulphonic, azoic, and fluorescent dyes. P25-graphene catalyst showed good ability to degrade all selected dyes. The influence of inorganic salts and surfactants on the photocatalytic degradation of rhodamine B using catalyst P25-graphene was also investigated. The degradation of rhodamine B was suppressed by the presence of NaCl, but the effect of Na2SO4 was negligible. The degradation of rhodamine B was significantly suppressed by all three types of surfactant, namely anionic, cationic and non-ionic surfactants. NMR technique was used to investigate the mechanisms associated with this suppression.