Over 18 billion barrels of waste fluids are generated annually from oil and gas production in the United States. As a large amount of water is used for oilfield operations, treating and reusing produced water can cut the consumption of fresh water in well sites. This research has helped to develop a membrane process train for a mobile produced water treatment unit for treating oilfield produced brine for reuse. To design the process train, over 30 sets of combination tests at pilot laboratory scale were performed using pretreatment, microfiltration and nanofiltration processes. Membrane performance was selected based on high flux separation efficiency, high tolerance for solids and fluid treatments. Over 95 % solids rejection and greater than 80 % oil removal efficiency were obtained in all these tests. Process train (pre-treatment and membrane) performance was monitored by chemical analysis of permeate and models fitting experimental data for the process. From the results, hydrocarbon rejection was analyzed; total organic carbon rejection was 47.9 %, total carbon content averaged 37.3 % rejection and total inorganic carbon rejection was at 3.66 %. BTEX removal efficiency ranged from 0.98 % to 52.7 % with the progressive pretreatment methods of using cartridge filters. The nanofiltration membrane showed significant reduction in total dissolved solids and in both anionic and cationic species. The process train is seen to follow a sequence of treatment from cartridge and oil removal filter treatment to microfiltration treatment to ultrafiltration, followed by nanofiltration for the purpose of this research. Further research still needs to be done on to determine the kind of analytical test which will give real time feedback on effectiveness of filters. In summary, the process train developed by TAMU-GPRI possesses distinct advantages in treating oilfield produced brine using membrane technology. These advantages include high quality of permeate, reduced sludge and the possibility of total recycle water systems. The small space requirement, moderate capital costs and ease of operation associated with the use of the mobile unit membrane technology also makes it a very competitive alternative to conventional technologies.

Submitted by André Bianchi Laraia (andreblaraia@yahoo.com.br) on 2018-08-29T22:49:26Z No. of bitstreams: 1 Dissertacao-Andre-Bianchi-Laraia.pdf: 2142300 bytes, checksum: 9264414d38ac4ce5ec3be46acb98ca44 (MD5) / Rejected by Pamella Benevides Gonçalves null (pamella@feg.unesp.br), reason: Solicitamos que realize correções na submissão seguindo as orientações abaixo: • Necessário fazer ajuste no sumario na lateral direita nas numerações. • A palavra APÊNDICE A deve ser centralizada A palavra APÊNDICE A deve ser centralizada • Referências. 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No. of bitstreams: 1 laraia_ab_me_guara.pdf: 2144718 bytes, checksum: eef37a1c04c8a387ddbff2e31f67db35 (MD5) Previous issue date: 2018-07-31 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Este trabalho apresenta o desenvolvimento de um processo de tratamento com plasma para melhorar ametalização química de placas de circuito impresso (PCI). A pluma de plasma é gerada em argônio a partir da descarga de barreira dielétrica (DBD) promovida entre uma agulha cirúrgica e um cilindro usando capilar de borosilicato como dielétrico. A tensão picoa-pico aplicada foi de 5 kV, com forma de onda senoidal na frequência de 37 kHz e potência de descarga em torno de 765 mW. O substrato é um composto de fibra de vidro e resina epóxi. Com incidência perpendicular da pluma de plasma na superfície, o diâmetro da área tratada circular é de 10 mm. Desta forma, o ângulo de contato reduz de 75 ° a 45 ° com 3 s de interação entre superfície da amostra e a ponta do plasma e o ângulo atinge o mínimo de 33 ° após 180 s de tempo de tratamento. A metalização química foi feita com banhos seqüenciais de solução de paládio e finalizada com banho de solução aquosa de cobre. Testes de adesão padrão mostraram uma forte adesão das camadas de metal nas superfícies previamente tratadas com as plumas de plasma. Esta adesão melhora com o tempo de tratamento. A melhoria na metalização foi observada em superfície plana e também em furos usados para conectar diferentes camadas em PCIs. A área metalizada na superfície dos buracos é maior nos orifícios tratados. Quanto maior o tempo de tratamento, maior é essa área. Todos os resultados indicaram que a técnica de tratamento por plasma de placas de fibra de vidro melhora a sua metalização química pelo cobre, levando a uma adesão mais uniforme e eficaz do metal à superfície com um método ambientalmente amigável / This work reports the development of a plasma treatment process to improve the chemical metallization of printed circuit boards (PCB). The plasma plume is generated in argon from a dielectric barrier discharge (DBD) promoted between a surgical needle and a cylinder using a borosilicate capillary as dielectric. The applied peak-to-peak voltage was 5 kV, with sinusoidal waveform at 37 kHz frequency and power in the discharge around 765 mW. The substrate was a composite of fiberglass and epoxy resin. With perpendicular incidence of the plasma plume on the surface the diameter of the circular treated area was 10 mm. In this area the contact angle reduces from 75° to 45° with 3 s of the plasma-surface interaction and the angle reaches the minimum of 33° after 180 s of treatment time. Chemical metallization was made with sequential baths of solution of palladium and finished with bath of aqueous solution of copper. Standard adhesion tests showed a strong adhesion of the metal layer on surfaces previously treated with the plasma plumes. This adhesion improves with the treatment time. The improvement in the metallization was observed on flat surface and also in holes used to connect different layers in PCB’s. The metallized area on the surface of the holes is larger in treated holes. The longer the treatment time the larger is this area. All these results indicated that the technique of plasma treatment of fiberglass boards improves its chemical metallization by copper leading to a more uniform and effective adhesion of the metal to the surface with an environmental friendly method

The aim of this thesis was identify the application of environmental-friendly approaches offer of accommodation in subject areas, assess the importance of responsible approaches in strategy of companies offering accommodation, research into preferences of visitors of the former České Budějovice district concerning a specific offer of responsible tourism industry. The results of paper and concept of measure for České Budějovice district are at the close of the paper.

Environment friendly products can be defined as products which show significant environmental improvements made at their most important life-cycle stages. For durable goods, life-cycle stages include manufacturing, use, and end-of-life of product. Reverse Supply Chain Management is the process of planning, implementing, and controlling the efficient, cost effective flow of raw materials, in-process inventory, finished goods and related information from the point of consumption to the point of origin for the purpose of recapturing value and/or proper disposal. The efficient and proper use of 5R’s processes namely Remanufacturing, Refurbishment, Reuse, Repair; and Recycle help the product to be greener and environment friendly. Part of the process also includes the proper disposal of goods which is essential for maintaining a green environment. This study aims at finding the significant factors to be considered by Cathode Ray Tube (CRT) Television component manufacturers to manufacture Environment Friendly Product. Various parameters like raw material procurement; water and energy consumption in product manufacturing; the extent of environmental regulations followed; waste production; and waste processing have been considered in this study. A Case Study has been prepared to study the entire manufacturing process of a CRT Television. The case study also looks at the regulations followed by CRT TV component manufacturers in India and how they are different from other countries. An attempt has been made to find out the value which can be recovered at the End-Of-Life of CRT TVs. The case also looks at safe recycling options for CRT TVs. The study shows that CRT TV component manufacturers consider Resource Procurement, Energy Utilization; and Compliance with Regulations to a significant extent. Also, an attempt has been made to develop an Environmental Friendly Index (EFI). The EFI depends on resource procurement, energy utilization, waste production, waste processing, and existence of environmental team in the company. There have been no steps taken by these component manufacturers towards dealing with return goods. All the return goods are dealt with by recyclers, who extract the material through unscientific and non-environmental friendly ways. The recyclers are not able to extract all the useful material, which if done in an efficient way, will result in more material recovery.

The main aim of this thesis is to design electric scooter, which is ideally adapted for urban mobility and which will be a practical, attractive and environmental friendly alternative to the car with a combustion engine. Emphasis is given to proposal of ergonomic, aesthetic and functional solution of the system, which makes that scooter can be folded into a mobile compact shape. Folded scooter can be carried at public transportation vehicles and park right at home or in the office. The unique design and practical features of a scooter should be attractive not only in terms of personal mobility, but also as a utility vehicle for private companies and public institutions.

Sustainable development as a research topic is becoming more prevalent across different fields. From a computer science perspective sustainability can incorporate anything from how to develop low-resource-use algorithms to human-computer-interaction oriented applications for behavior change. Eco-feedback systems is the collective term for solutions that can give consumers feedback regarding the environmental impact from their product use. This thesis explores how Persuasive Systems Design (PSD) and eco-feedback can be merged for a digital context, i.e. during the use of computers and software. Two design prototypes were developed where one was considered neutral and the other had PSD applied. The prototypes were included in two separate questionnaires and distributed to capture participants' use intention and perceived persuasive potential of the different designs. Further on, the PSD prototype was used in a usability test and short interview with the intention to gather more opinions in addition to the questionnaire. The results show no significant difference in the response towards the neutral against the persuasive systems design. In total the perceived ease of use and usability score high, meaning the participants regard the design to be easy to use. The response differs greatly when it comes to usefulness and intention to use a similar system in the future. The results of this thesis give an indication of where the user interest is currently at. However, further evaluation and more research is necessary to develop stronger conclusions regarding how different users perceive eco-feedback systems.

The increasing threats to the environment have led the consumers to enhance their concern for environment. As a result, consumers nowadays intend to purchase environmentally friendly products as part of showing their concern for environment. This changing trend of consumer behavior has also driven the businesses to act accordingly and introduce sustainability within business process including production, offerings and distribution with an objective of protecting environment. Apart from the environmental benefits, getting involved in the environmentally friendly activities also enable the businesses to enjoy higher profit margins, positive brand image, higher employee commitment and above all competitive advantage. Current literature shows that, because of enormous benefits businesses are also getting involved in transforming sustainable consumption through different marketing activities to avoid poor sales of green products. Brand generated contents, defined as contents shared and controlled by the business itself on its owned or earned platforms, is often used by the marketers and businesses to share information or justifying premium pricing of green products. The primary purpose of this study is to develop insights and understand the relationship between different factors driven by brand generated contents and green purchase intention. The study is implemented by a quantitative study where 156 respondents have shared their perceptions and thoughts related to different factors of brand generated contents on social media platforms that they perceive to influence their purchase intentions to green products. Even though green consumerism and green purchase intention is not a new concept within field of research, connecting it with brand generated content is a completely new phenomenon. Existing literature suggests that researchers have tried to measure the green purchase intention mostly based on uncontrollable factors by marketers or different traditional consumer theory. Some other researchers have also tried to connect green purchase intention with user-generated content completely overlooking its counterpart, brand generated content. Five constructs have been developed based on existing literature: knowledge awareness, perceived concern for environment, perceived product value, attitude and trust of contents. A survey questionnaire was developed with three sections- demographic section to comprehend the respondents, behavioral section to understand purchase behavior of respondents related to green products and final section to understand the perception of consumers. The finding demonstrates interesting insights with perceived concern for environment and attitude to be positively significant and trust of content to be negatively significant to green purchase intentions. However, the finding is believed to assist the marketing practitioners and businesses to develop marketing strategies for green products and develop contents accordingly. Furthermore, the study aims to contribute theoretically within the field of brand generated content and green purchase intention by filling the gap and linking each other. Finally, the study has significant potential of contributing to society by helping in promoting environmentally friendly products and protecting the environment.

In classical “triple bottom line” sustainability reporting, there have not been any clear guidelines on how companies should report on their environmental footprint. Consequently, the transparency in the environmental reporting has been low, which has resulted in greenwashing. To create reliable reporting and increase the proportion of green loans and green investments, the EU introduced the classification system EU Taxonomy in 2021. The new framework has stricter requirements on companies as they are now obligated to report on specific guidelines. These guidelines will also allow stakeholders to determine how sustainable a company is. Since the EU Taxonomy was recently launched, there has been a knowledge gap in how companies experience the framework. Also, what measures should be considered in the design of the EU Taxonomy for the implementation to be as successful as possible, based on the premise that companies should make their business model as sustainable as possible. This semi-structured interview study examines how Swedish companies experience the EU Taxonomy. The researchers interviewed eight Swedish stakeholders with great insights into the area, from the manufacturing industry (1), the Real Estate Industry (2), the Swedish Corporate Business Organizations (1), the Real Estate Industry Organizations (2), and Auditing Firms (2). The researchers could conclude that being classified as sustainable in the EU Taxonomy does not necessarily mean a company is sustainable from a scientific point of view. Nevertheless, it can be an answer to political interests. The interviewees also felt it was challenging to interpret and understand the framework and that there were necessary clarifications. Further, the EU will have to account for several activities from each industry so that companies can report on their total ecological footprint. Finally, changes in the delegated acts are mandatory for the EU taxonomy to be a successful policy instrument. / I klassisk “triple bottom line” rapportering har det inte funnits några tydliga riktlinjer för hur företag ska rapportera om sitt ekologiska avtryck. Som en följd av detta, har transparensen i hållbarhetsredovisningen varit låg, vilket har resulterat i greenwashing. I syfte att skapa mer tillförlitlig rapportering och öka andelen gröna lån och investeringar, infördes 2021 klassificeringssystemet EU Taxonomin. Det nya ramverket har skapat nya krav på företag då de nu är skyldiga att rapportera på specifika miljöbelastande aktiviteter. Dessa riktlinjer ska dessutom kunna utgöra hur hållbara de rapporterande bolagen är. Eftersom EU Taxonomin nyligen har lanserats, fanns det en kunskapslucka för hur företag upplever ramverket. Även vilka åtgärder som bör övervägas i utformningen av EU-taxonomin för att implementeringen ska bli så framgångsrik som möjligt, utifrån utgångspunkten att företag ska göra sin affärsmodell så hållbar som möjligt. Med detta i åtanke utvecklades denna semistrukturerade intervjustudie som ämnar att undersöka hur svenska företag ser på EU Taxonomin. Forskarna har intervjuat åtta aktörer från svenska: tillverkningsindustrin (1), fastighetsbranschen (2), näringslivet (1), medlemsorganisationer inom fastighetsbranschen (2) och revisionsbyråer (2). Det forskarna kunde konstatera är att det som klassas som hållbart i EU Taxonomin, inte nödvändigtvis ur ett teknikneutral och vetenskapligt perspektiv är hållbart, utan är ett svar på ett politiskt intresse. Aktörerna upplever dessutom att ramverket är svårt att förstå och att det därför är nödvändigt med förtydningar. Till sist kommer även EU behöva ta fler aktiviteter från de respektive branscherna i åtanke i de delegerade akterna, för att företag ska kunna redovisa för sitt totala ekologiska fotavtryck. Slutligen är ändringar i de delegerade akterna obligatoriska för att EU Taxonomin ska kunna bli ett framgångsrikt policyinstrument.

The subject of thesis is environmental-friendly heating. Theoretical part includes overview of possible ways using alternative energy sources, especially solar energy and energy environment - heat pumps. Partical part is devoted to solution of environmental-friendly heating and heating warm water for family house using solar system. The proposal is documented with economic evaluation and calculation of economic return.

Denna studie undersöker för- och nackdelar med textilier gjorda av bananavfall applicerat inom modebranschen. Studien granskas ur ett miljöperspektiv med ett fokus utifrån mål 12: Hållbarkonsumtion och produktion från de Globala målen. De Globala målen är en del avhandlingsplanen Agenda 2030 som är uppsatt av United Nation Development Program, där det eftersträvas att fram till och med år 2030 ha uppnått en mer hållbar värld. Vidare kommer bananfiberns egenskaper att granskas ur ett teoretiskt perspektiv för att se om detta är ett lämpligt val inom modebranschen. Studien ger också en inblick i hur modebranschen i Sverige förhåller sig till textilt material av bananavfall. Studien utgör en viktig del för att sprida kunskap om bananfiberns för- och nackdelar medmöjligheter att ge bättre förutsättningar till modeindustrin att kunna använda en hållbar fiber. Studiens resultat visar att det finns möjligheter för att detta ska kunna uppnås i framtiden sett ur ett hållbarhetsperspektiv, samt utifrån bananfiberns egenskaper. / This thesis examines the advantages and disadvantages regarding textiles made out of bananawaste within the fashion industry. An environmental perspective is applied based on goal 12:Responsible consumption and production from the Sustainable Development Goals (SDGs).SDGs is a part of the 2030 Agenda set by United Nation Development Programs, which aims tocreate a better world by 2030. Furthermore, the characteristics of the banana fiber and itsadequacy for the fashion industry will be theoretically examined. An aspect regarding thematerial from the fashion industries point of view will also be processed. Only swedishcompanies are included in the thesis.The thesis constitutes an important part for disseminate knowledge regarding the advantages anddisadvantages of the banana fiber. This with an expectation to provide better conditions withinthe fashion industry using a more sustainable fiber. Based on the results of the thesis, theopportunities to achieve this in the future are significant, due to the fact that both an sustainableperspective and the characteristics of the banana fiber shows a positive outcome. Furthermore,the thesis indicates a split result regarding the fashion companies point of view in the matter.