New Efficient Configurations for Sour Wastewater Treatment-

Background: Due to the technological development, the environmental legislations on pollutant concentrations in aqueous effluents tend to tighten and increase. As a result, sour water must be handled and processed properly to provide a high quality of stripped water with insignificant traces of NH3 and H2S in it. This must be achieved within the minimum operating costs. This research investigates the stripping configurations of sour water effluents from various industries. The research also offers an insight on different scenarios and configurations to accomplish set targets satisfying the environmental law criteria. Methods: This research introduces a range of heat integration schemes for better energy savings, further vapor recompression VRC technique is opted for its ability to maximize energy savings. This research analyses the effect of operating and design variables on the stripped water quality such as feed temperature, feed location, reflux split, and steam flow rate. The option of adding new equipment is also addressed to maximize heat integration and enhance the efficiency of the process. Thus, several schemes and process configurations are explored to treat industrial sour water waste streams seeking better efficiency. These configurations differ from one another in heat integration layout and whether VRC is utilized or not. Energy efficiency and economics of the proposed configurations are considered as decisive factors in this research study. The case study adopted are based on published data taken from some iron and steel factories in South Korea named POSCO (Pohang Iron and Steel Corporation). Results: Results of the treated wastewater streams guarantee that the effluent sour water obeys standard environmental regulations, i.e., NH3 contents range from 30 to 80 ppm and H2S concentration falls below 0.1 ppm. The obtained results of the seven different scenarios are compared to the original case study. It is found that scenario 7 is the most economical solution saving 51.54 % in total annual cost when compared to the original case study, while satisfying the treated water environmental regulations with a concentration of 3.19 ppm NH3 and 0.05 ppm H2S. Scenario 7 creates its own steam unlike the original case study where steam utility is needed extensively. However, scenario 7 consumes 15 % more electricity than the original case study but still shows 56.34 % less utility cost in overall. Conclusion: The optimum process configuration can be employed for other sour water purification systems such as those from petroleum refiners. An ongoing research work is focusing on the use of internal heat integration for more energy savings and economics improvement.

Humbug and outrage: A study of performance, gender and affective atmosphere in the mediation of a critical parliamentary moment

In a Parliament called back following its unlawful prorogation in September 2019, Prime Minister Boris Johnson touched a raw nerve by stating that the ‘best way to honour Jo Cox’s memory is to get Brexit done’. Johnson had earlier dismissed concerns about threats to Members of Parliament which echoed his inflammatory language as ‘humbug’. We examine this critical parliamentary moment in the context of broader discussions about emotionality, toxic discourse and polarisation in the United Kingdom. The study combines performance analysis of the Hansard transcripts and UK Parliament YouTube coverage of the debate, with discourse analysis of national and local newspaper coverage from 25 September to 1 October 2019. We contend that in-depth examination of this moment, alongside the subsequent journalistic commentary, contributes an original case study which works to illuminate the intersections of political performance, affective atmospheres and gender in contemporary mediated political culture.

Idiopathic tumoral calcinosis in children: Case report

Tumoral calcinosis is a rare, benign entity characterized by the deposition of calcium in periarticular soft tissues. We report the original case of an idiopathic tumoral calcinosis of the elbow in a 6-year-old girl successfully treated by drainage with no signs of recurrence after a 3-year follow-up. We discuss the particularities of this joint location and our therapeutic management.

Syntactic Change in Late Modern English

Syntactic Change in Late Modern English presents a stability paradox to linguists; despite the many social changes that took place between 1700 and 1900, the language appeared to be structurally stable during this period. This book resolves this paradox by presenting a new, idiolect-centred perspective on language change, and shows how this framework is applicable to change in any language. It then demonstrates how an idiolect-centred framework can be reconciled with corpus-linguistic methodology through four original case studies. These concern colloquialization (the process by which oral features spread to writing) and densification (the process by which meaning is condensed into shorter linguistic units), two types of change that characterize Modern English. The case studies also shed light on the role of genre and gender in language change and contribute to the discussion of how to operationalize frequency in corpus linguistics. This study will be essential reading for researchers in historical linguistics, corpus linguistics and sociolinguistics.

Networks for Social Impact

Networks for Social Impact is a broad review of how nonprofits, businesses, and governments work together to tackle social problems. The book takes a systems approach to explain how networks make a social impact, and when they are unlikely to do so. It argues that network design and management is not a one-size-fits-all formula. Instead, the type of social issue, the mechanism for social impact, environment, and resources available each determine appropriate choices. Drawing on research from public administration, psychology, business, network science, social work, and communication, it synthesizes what we know about how to best design and manage networks. It includes illustrations from 30 original case studies; they describe groups of organizations addressing issues such as gender-based violence, educational outcomes, senior care, veterans’ services, mental health and wellness, and climate change. Additionally, the volume describes critical issues that leaders address in creating and managing networks, including social issue analysis, network governance, securing and managing funding, dealing with power and conflict, using data effectively, and managing change. Each chapter includes tools for network leaders to use to handle these issues. This book is neither a Pollyannaish, pro-collaboration account of the benefits of network approaches, nor is it a critical view of these efforts. Instead, it highlights the opportunities and challenges of networks.

Where Is the Honey Bee Queen Flying? The Original Case of a Foraging Queen

During a bee fauna survey in the countryside of northern Sardinia, a honey bee queen (Apis mellifera L.) was detected while foraging on a borage (Borago officinalis L.) flower in Uri, Province of Sassari, Italy, most likely during an orientation flight before mating. Morphological details, detectable from photos with the naked eye and stereomicroscopic observations, confirmed that the honey bee queen was sucking nectar from a flower. The enormous development of the abdomen, lack of pollen-collecting structures in the legs and other characteristics such as the typical distally bilobed shape of the mandibles, with long hairs on their outer surface, proved the structural differences between the queen specimen and the other castes of bees. The queen’s proboscis, which is shorter compared to the workers, may have been counterbalanced by the shape and nectar production of the borage flower. This new observation proves that the queen can feed herself under natural conditions, likely to obtain the energy required for flying. Although we cannot exclude disturbing factors that could explain this foraging behaviour of a queen observed for the first time, this note opens a new scenario and discusses this new finding in the context of the available literature on the queen’s behaviour and questions to be answered.

Form-Based Regulations to Prevent the Loss of Urbanity of Historic Small Towns: Replicability of the Monte Carasso Case

Small towns are a significant component of the landscape in Europe and a key element of its cultural heritage. Currently, they face socio-economic crisis and spatial disintegration. Against this background, the spatial transformation of the Swiss town of Monte Carasso is of particular interest. It was initiated in the 1970s as a design intervention made by the architect Luigi Snozzi and eventually constituted a local spatial policy with a scope to maintain or even restore town urbanity and identity. This paper describes the case through its decomposition into primal elements such as context, main procedure elements, supplementary action, and obtained results. The results were measured by calculating urban parameters and observations compared with the adjacent town of Sementina, whereby they proved that the policy is effective. In the next step, a synthetic diagram was proposed that describes the interrelation between specific elements of the procedure. It was then modified to serve as a model for other possible contexts. Finally, its main potentials and limitations were described. It was concluded that the construction of the Monte Carasso urban regulatory mechanism has the potential to be replicated elsewhere. However, some of its features need to be rethought—mainly the role of an individual architect, which was highly exposed in the original case.

Painful nail: What’s is your diagnosis

A glomus tumor is a rare benign neoplasia; which involves a thermoregulatory microvascular system, the glomus body. It is often found in the subungual tissue. Eccrine angiomatous Hamartoma (EAH) is a rare proliferation of vascular and eccrine structures. We present an original case by its location, clinical examination (pain is the main symptom with onycholysis) and its misleading appearance on MRI. The treatment consists of surgical excision of the tumor with good evolution. We will insist on the histological exam of the piece, which is the key to the diagnosis.