Bottle Trees

Total Page:16

File Type:pdf, Size:1020Kb

Bottle Trees Bottle Trees by Daniela Edwards RC Creative Writing Winter 2012 1 For Paige, my oldest sister, most frequent rival, consistent critic, steadfast supporter, and oldest friend. And for Mona, in return for fast friendship and late-night sci-fi marathons. 2 Contents Introduction: A Conceit…………………...………………………………………………4 Gingerbread……………………………….……………………………………………….9 Lasting……………………………………………………………………………………13 Horseplay………………………………..……………………………………………….18 Mag……………………………………..………………………………………………..29 Compulsion……………………………..………………………………………………..37 Storm……………………………………..………………………………………………44 Clock……………………………………………………………………………………52 Doll……………………………………...……………………………………………….65 Bottle Tree……………………………….………………………………………………73 Cellar Wine………………………………………………………………………………82 Nan……………………………………….………………………………………………95 3 Introduction: A Conceit During my last semester as an undergraduate, I took a class called “Creative Musicianship.” Mark Kirschenmann, one of the two instructors for the course, focused particularly upon the “creative” part of the course description. Several sessions of the lab section consisted of him showing the class portions of online lectures about creativity (Elizabeth Gilbert’s TED video is certainly worth a look), talking to us about his own creative challenges – such as a course he took as a college student which required him to compose a new piece each week – and urging the class to discuss our own methods and difficulties. Though I entered the course hoping to get more of a grasp on musical creation methods, I ended up learning a lot about creativity in general instead. In the end, I think this was more valuable. Thank you, Mark. In listening to classmates discuss songs that sprang from the ether nearly fully- written, hearing one student explain that the night before our composition was due, he deleted all of his work from the week in order to begin anew, in having to twist and rewrite and rewrite my own pieces in order to get them into something resembling finished condition, I discovered that the process of making something new is rarely exactly the same from project to project, much less from person to person. Further, I discovered that making music is, for me, very similar to the process of making new stories. Sometimes new stories, ideas, or melodies flow from my head to my screen (or staff) with almost no effort. Sometimes it takes days, weeks, or even years for an idea to 4 mature. And sometimes I will spend days furious at myself for apparently being unable to write more than a few sentences at a time. This process creates a story behind each story. Neil Gaiman often features stories- within-stories, a type of intertext that I have always found fascinating. I remember as a child watching a cartoon short about the storyteller who won the princess’s hand by telling her father a story with no ending (you know the one: “And then another ant came and took out another piece of wheat. .”). And as the inter-stories, the backstory of creation, have been such an integral part of my own experience, I will at this point shamelessly mimic Gaiman himself. Each story has a story, which in turn I hope will make each of my stories a little deeper. Or not. Honestly, you could skip this introduction entirely and I don’t believe the stories would suffer for it. My apologies if you choose to do so now, for making you first trudge through a page and half of my rambling. “Gingerbread” – this is one of those stories that I wrote very quickly. It is shorter than my pieces usually are, and written in a kind of distracted state of mind: earlier that day I had deleted most of another idea that I decided wouldn’t work. Is it about anything in particular? Perhaps not. Perhaps it is merely about the need to keep busy, to make something even if it isn’t what you really wanted to make at the time. “Lasting” – I based this story on another short story I wrote while in high school. I still have the original somewhere, and honestly it’s pretty terrible, but it was the most advanced piece of prose I’d created at that point. It took me this long to salvage the idea, and I almost didn’t include it at all, largely because I dislike remembering the experiences that inspired it. I keep it now because I have to admit that sometimes even horrible people and events can create good ideas. 5 “Horseplay” – This was a challenge to write, as I usually make my narrators a little bit more self-aware. The bits about horses are all true. “Mag” – This story is a something of an artefact. Initially I planned for this project to consist entirely of realistic fiction based on mythological concepts. This did not pan out, but the mythic trend in this story is visible to anyone who knows about Odin and his two ravens, Hugin and Munin, Thought and Memory. In Grimnismol, Odin frets about sending these two creatures out as his scouts. “For Hugin I fear/ lest he come not home, But for Munin my care is more.” (stanza 20, Bellows translation). In Nordic stories, Thought is worthless without the context Memory provides. Though the raven is transformed into a crow in this story, I leave it to the readers to decide which one she is. “Compulsion” – a companion to “Mag,” though “Compulsion” was actually written first. I suppose it too reflects on the importance of memory and thought. “Storm” – Another story about a soldier, this one a veteran. “Soldier stories” make up a large portion of my portfolio, which I guess isn’t that surprising. Real life creates plot, and this country has been at war since I was ten years old. Growing up in a small town with very limited resources and even fewer opportunities, I saw several friends join the military as soon as they graduated high school. Too few went on to successful careers in the field. Most just seemed to get more lost than they’d been before. The change in themselves was difficult enough, but I had one friend in particular who discovered that his old friends and loved ones could not relate to him anymore. He’d lost a part of himself, and also his old support network. “Clock” – I couldn’t write this piece until I made the conscious decision to give the narrator difficulties with her attention span. It also was part of a self-imposed 6 challenge to write a piece that involved a polyamorous system – i.e., a sexually open relationship among multiple people – that did not provide the main source of conflict in the story itself. I think this is the closest thing to a happy, healthy relationship that I have included in this collection. Make of that what you will. “Doll” – a prequel story that necessitated a rewrite of the previously-written sequel. I did not realize that it was about a character mentioned in “Bottle Tree” until I finished it, and then I had to change both stories slightly to solidify the connection. “Bottle Tree” – Bottle trees do exist, though their origins and purpose will vary from person to person. Sometimes they may not even be trees. This is another piece of mythological fiction, as the narrator is herself well aware. “Cellar Wine” – Networks between friends often seem rather fragile. I have most of the friends I do today because someone I met while moving into my dorm freshman year thought I was physically attractive and decided I was interesting enough to meet his friends. Connections are intangible things, and perhaps can linger even when those who forged them are no longer present. “Nan” – My longest completed piece to date. This underwent a terrifying number of drafts before it came to its eventual conclusion, which isn’t even really a conclusion. It started after a chance encounter with a friend of a friend, a gentleman of East Asian descent who was adopted into a Jewish family, which honestly still sounds like the setup of a potentially-tasteless joke. He turned it into one, at least, which made the idea stick with me for some time. My own experiences with Japanese language and culture and my upbringing as a Jew in a mixed family living in an isolated area of rural Michigan eventually combined with the initial grain of an idea, and “Nan” was the final result. 7 These stories are not the sum of my experiences, nor a record of them. They are, however, born of ideas that stuck to me, or surrounded me, or grew on me like parasitic moss. Creativity is often portrayed as stemming from an “other,” such as a muse or a daemon (the term favored by Elizabeth Gilbert). Writing is at least somewhat different from story to story for me; however, it is always a way to shed myself of excess ideas and images. 8 Gingerbread I’d wonder how I got myself into this, but I know it’s the same as ever. We need another eight dozen cookies and some sauerkraut for the dinner – and it wasn’t even my church, it was Alice’s, and she’d come over to ask me because she’d already done a double-share of rolls for the Christmas dinner, and she even explained that the sauerkraut was just something the church always had, and here was the recipe, and thank you so much, and I was left agreeing to take care of it without ever having said anything. I ran my wrist under the tap, glaring at the searing red line the baking sheet (now on the floor with two dozen gingerbread men) had left on winter-white skin. Like that could somehow make it better. Stupid, stupid, stupid. And the whole apartment smells of burning sugar and boiling cabbage.
Recommended publications
  • Packaging of Dairy Products - II
    Paper no.: 12 Paper Title: Food Packaging Technology Module-19: Packaging of Dairy Products - II 19.1 Introduction In this module, we will discuss regarding the packaging of butter, ghee, cheese and milk powder. Butter and ghee contains a high percentage of fat, so they are very susceptible to spoilage. So packaging material used should be selected in such a way that it possesses good grease resistance, and barrier properties against oxygen and moisture. Cheese is fermented dairy product, having low pH and comparative higher moisture content while milk powder is dried product, containing very low moisture. 19.2 Butter It consists primarily of about 80% milk fat, 16% moisture and in table butter up to 3% common salt. Because of high moisture content butter is susceptible to mold growth and lypolytic rancidity 19.2.1 Characteristics of Butter 1. Due to high moisture content butter unlike solid fats is susceptible to mold growth. 2. Flavour and odour are easily absorbed by butter from its environment. 3. Deterioration of the butter may take place due to rancidity. 4. Butter has tendency to lose Moisture. 19.2.2 Requirement of Packaging: 1. Non toxic, not harmful to consumer’s health. 2. It should be grease/moisture proof. 3. Shall be barrier for Oxygen. 4. Low metallic content as metals favor oxidation of fat. 5. Shall not transmit light. 19.2.3 Packaging Material In India, butter is packed in bulk as well as in retail packages. For bulk packaging, there is no standard method, and generally polyethylene bags/parchment paper along with corrugated boxes are used.
    [Show full text]
  • Camp Wanna-Read: Program Guide for the Texas Reading Club 1991. INSTITUTION Texas State Library, Austin
    DOCUMENT RESUME ED 337 135 IR 015 121 AUTHOR Switzer, Robin Works TITLE Camp Wanna-Read: Program Guide for the Texas Reading Club 1991. INSTITUTION Texas State Library, Austin. Dept. of Library Development. SPONS AGENCY Department of Education, Washington, DC. PUB DATE 91 NOTE 273p.; For the 1990 program guide, see ED 326 245. PUB TYPE Guides - Nun-Classroom Use (055) EDRS PRICE MF01/PC11 Plus Postage. DESCRIPTORS Adolescent Literature; *Childrens Libraries; Childrens Literature; Elementary Secondary Education; Films; Guidelines; Handicrafts; *Library Planning; Library Services; Preschool Children; Program Development; Public Libraries; Reading Games; *Reading Programs; *Recreational Reading; State Programs IDENTIFIERS *Texas Reading Club ABSTRACT Camp Wanna-Read is the theme for the 1991 program for the Texas Reading Club, which centers around the experIences and types of things that happen at summer camp. Each chapter is a type of camp a child might attend such as cooking camp, art camp, music camp, science camp, Indian ..:amp, nature camp, and regular summer camp. The chapters are divided by program and age level. In each chapter there are themes, ideas, and books for programs for children from preschool age through grade two, and grades three and up. The themes are used to unite the literature presented into a memorable whole, and to help with lesson planning. Programs for the grade two and under include books, films, fingerplays, dramatics, puppets, and crafts, and: last for 30 minutes. Programs for grade three and up run from 30 minutes to an hour and include booktalks, films, guest speakers, creative writing, drama, and art. Also included in this manual a::e guidelines and resources for providing services to children with hearing disabilities; clip art; lists of outside resources including outside speakers and music, miscellaneous, and environmental resources; puzzles, drawings, handouts, and giveaways; and guidelines and sample materials to assist librarians in organizing a reading program.
    [Show full text]
  • PRESS RELEASE Paper and Plastic Sacks Provide Equivalent Shelf Life
    PRESS RELEASE 11th December 2019 Paper and plastic sacks provide equivalent shelf life Paris/Stockholm, 11th December 2019: A recent study found that paper sacks and form-fill- seal (FFS) polyethylene sacks provided equivalent protection for cement when stored for 18 months under the same conditions. The study was conducted by the Norwegian research organisation SINTEF on behalf of the European Paper Sack Research Group (ESG), a collaboration between CEPI Eurokraft and EUROSAC. “Since cement hardens when reacting with water, perfect product protection of the packaging is vital when storing cement for a longer period of time in order to conserve its quality and properties,” explains Catherine Kerninon, General Delegate of EUROSAC. “To ensure that our industry meets the requirements of cement producers and can compete within the packaging market for cement, we investigated the shelf life of the two sack solutions that are used most widely on the market: cement paper sacks and cement plastic sacks.” For the study, typical sack solutions of each type were Paper sacks protect the product quality chosen: a standard cement paper valve sack made and performance for at least 18 months of two paper layers of 80 g and 70 g with a 12 μm in storage. Image storage depot: Sika Deutschland, Rosendahl, Germany high density polyethylene (HDPE) free film barrier, and a standard plastic sack made of three layers of COEX PE film (LDPE, HDPE and LLDPE) with a total thickness of 120 µm. Study design Three sacks of each type were filled with the same type of cement and stored in an outside storage house in Norway where they were exposed to ambient weather conditions throughout the test period.
    [Show full text]
  • Cement Packaging Solutions
    CEMENT PACKAGING SOLUTIONS PRODUCT PORTFOLIO OF THE W&H GROUP FOR THE INDUSTRIAL PACKAGING INDUSTRY www.wuh-group.com 24.04.2015 | Folie 1 www.ximang.vn - www.cement.vn EXTRUSION | PRINTING | CONVERTING WINDMÖLLER & HÖLSCHER . World market leader offering sophisticated solutions for flexible packaging - extrusion, printing, conversion . More than 50 different machine types . Headquarters in Lengerich, Germany . Founded: 1869 . Legal form: Limited partnership . Turnover approx. 650 Mio. Euro www.ximang.vn - www.cement.vn EXTRUSION | PRINTING | CONVERTING W&H ASIA-PACIFIC . Asia-Pacific regional Headquarters in Bangkok, Thailand . Additional offices in Australia, China and Taiwan . Sales, Service, Spare Parts stock in Asia . After-Sales service throughout the region by dedicated field service . Qualified and experienced local technicians in all countries (Rieckermann). www.ximang.vn - www.cement.vn EXTRUSION | PRINTING | CONVERTING CEMENT PACKAGING SOLUTIONS www.ximang.vn - www.cement.vn EXTRUSION | PRINTING | CONVERTING CEMENT SACK TYPES (I) – K.P.K. K.P.K. (or K.P. or P.K.) cement sack . Outer ply paper (Kraft) . Center ply wPP (PP) . Inner ply paper (Kraft) . The plies are laminated together. Valve sack with sewn closure top & bottom, „pillow shape“. www.ximang.vn - www.cement.vn EXTRUSION | PRINTING | CONVERTING CEMENT SACK TYPES (I) – K.P.K. Advantages of the KPK cement sack: . STRONG!! . wPP fabric can be produced inhouse. High protection level, also against moisture . Good manual handling . Good haptics www.ximang.vn - www.cement.vn EXTRUSION | PRINTING | CONVERTING CEMENT SACK TYPES (I) – K.P.K. Weakness of the KPK cement sack: . High spillage & dust . Complex & slow production process – no modern machines! . Recycling?! . Weight – 200 to 220g! .
    [Show full text]
  • White Paper: Valmet Breast Roll Shaker for Improved Formation
    Published November 15, 2011 Valmet Breast Roll Shaker Valmet Breast Roll Shaker for improved formation Executive Summary Valmet Breast Roll Shaker improves the sheet forming process. Valmet Breast Roll Shaker shakes the breast roll cross-directionally and breaks up fiber flocks by creating shear forces on the web. This system improves sheet formation, and strength and visual properties. Valmet Breast Roll Shaker is very easy to use: simply set the frequency and stroke length then press the start button on the control panel. Valmet Breast Roll Shaker is designed for easy upkeep with few parts needing maintenance. Valmet Breast Roll Shaker has a very compact design and all equipment is integrated into one unit. Valmet Breast Roll Shaker has proven itself on uncoated and coated woodfree, kraftliner, sack paper, liquid packaging board, recycled linerboard and multi-layer grades. Results on board machines show an average formation improvement of 15%. Most recently, a North American reference has seen a 20% improvement in formation with a corresponding 11% gain in bottom side smoothness. © Valmet Page | 1 Published November 15, 2011 Valmet Breast Roll Shaker Valmet Breast Roll Shaker breast roll shaker improves formation Valmet Breast Roll Shaker is Valmet's solution for improving the sheet forming process. Valmet Breast Roll Shaker shakes the breast roll cross-directionally and breaks up fiber flocks and enhances fiber orientation by creating shear forces on the web. This system improves sheet formation as well as strength and visual properties. Improved formation and low power consumption Valmet's self-balanced breast roll shaker provides important benefits that will improve formation.
    [Show full text]
  • Paper Bags Factory Feasibility Study
    Paper Bags Factory Feasibility Study Outline 1 2 Entrepreneur’s Details 1 Introduction 3 2.1- The Project 3 3 2.2- Location &Area 6 The Industry &the Proposed Products 8 3.1- The Industry 8 4 3.2- The Products 13 Market Analysis 14 4.1- Overall Market (Demand Supply 5 Analysis) 14 Market Strategy 19 5.1- Competitive Edge 19 5.2- Marketing Mix (the 4Ps) & Strategy 19 5.3- Market Viability 20 Outline 6 Technical Analysis 21 6.1- The Technology 21 6.2- Sales Forecasting & Planning 23 6.3- Staff Requirements & Salaries 24 6.4- Project Cost Analysis 24 7 6.5- Project Implementation Plan 25 Business Risk & Sensitivity 26 7.1- SWOT Analysis 26 8 7.2- Exist Strategy 28 9 Conclusion 28 References 29 10 Summary List 29 Confidentiality Agreement; Non- Disclosure Form The undersigned reader acknowledges that the information provided by in this business plan is confidential; therefore, reader agrees not to disclose it without the express written permission of . It is acknowledged by reader that information to be furnished in this business plan is in all respects confidential in nature, other than information which is in the public domain through other means and that any disclosure or use of same by reader, may cause serious harm or damage to . Upon request, this document is to be immediately returned to . Signature Name Date Paper Bags Factory (1) Entrepreneur’s Details Applicant (s) Name, as per passport: ( English & Arabic) Highest Education Certificate & Field of Study: Current/Last Position Held: Current Salary: Total Years Work Experience: Personal
    [Show full text]
  • Day by Day Care Newsletter: October 1979 - June 1980 Center for Public Affairs Research (CPAR) University of Nebraska at Omaha
    University of Nebraska at Omaha DigitalCommons@UNO Publications Archives, 1963-2000 Center for Public Affairs Research 1979 Day by Day Care Newsletter: October 1979 - June 1980 Center for Public Affairs Research (CPAR) University of Nebraska at Omaha Follow this and additional works at: https://digitalcommons.unomaha.edu/cparpubarchives Part of the Demography, Population, and Ecology Commons, and the Public Affairs Commons Recommended Citation (CPAR), Center for Public Affairs Research, "Day by Day Care Newsletter: October 1979 - June 1980" (1979). Publications Archives, 1963-2000. 75. https://digitalcommons.unomaha.edu/cparpubarchives/75 This Article is brought to you for free and open access by the Center for Public Affairs Research at DigitalCommons@UNO. It has been accepted for inclusion in Publications Archives, 1963-2000 by an authorized administrator of DigitalCommons@UNO. For more information, please contact [email protected]. VOLUME I, Number 1 October, 1979 LEAVES I like to rake the leaves Division of Continuing Education for Western Nebraska, Into a great big hump. part of the University of Nebraska system. Then I go. back a little way, Bend both knees, I don't have to introduce Marcia Nance and And jump! Jean Mellor to you because you know the good work that they have been doing. Marcia and Jean have agreed to continue on the team so you will see them at some of the workshops. They will be working with us through Kearney State which will represent us in the mid-state area. I'm Ginger Burch, coordinator of the Day Care Training and Service Program. We are really excited about the program this year.
    [Show full text]
  • Paper Sack Comprising a Combination of Sack Kraft Paper and Recycled Containerboard Paper
    (19) & (11) EP 2 388 203 A1 (12) EUROPEAN PATENT APPLICATION (43) Date of publication: (51) Int Cl.: 23.11.2011 Bulletin 2011/47 B65D 33/01 (2006.01) D21H 27/10 (2006.01) B65D 30/08 (2006.01) (21) Application number: 10163280.0 (22) Date of filing: 19.05.2010 (84) Designated Contracting States: (72) Inventor: Benedetti, Franco AL AT BE BG CH CY CZ DE DK EE ES FI FR GB 37026 Pescantina (VR) (IT) GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (74) Representative: Lissandrini, Marco Designated Extension States: Bugnion S.p.A. BA ME RS Via Pancaldo 68 37138 Verona (IT) (71) Applicant: Benedetti, Franco 37026 Pescantina (VR) (IT) (54) Paper sack comprising a combination of sack kraft paper and recycled containerboard paper (57) The present invention relates to Paper sack, in delimit an interior volume, wherein the material forming particular for fine-grained bulk material such as cement, said portions comprises a first layer and a second layer, gypsum, granulate, animal feed etc., comprising at least wherein the first layer is formed of sack kraft paper and a front portion and a rear portion, wherein said portions wherein the second layer is formed of recycled contain- erboard paper. EP 2 388 203 A1 Printed by Jouve, 75001 PARIS (FR) 1 EP 2 388 203 A1 2 Description terial. Hence, even though recycled containerboard pa- per has properties so that at the first sight it appears that [0001] The present invention relates to a paper sack, it is unsuitable for the use in paper sacks, the invention in particular a paper sack for fine-grained bulk material employs such a paper.
    [Show full text]
  • Sei3jnldv~Nnvv4 H~Dvd )DVS Snkidihs IIV/Al11fl~
    . II 1! 096 . 'Avy~j F SEi3JnlDV~nNVV4 H~dVd )DVS SNkIdIHS IIV/Al11fl~ uaa4xiS poa fOOJBOJd DEWS umV szva vJ3dvd ~O ~Lsfl cov 3vflDvMnNvw. 3mi A4dVUOIhIU111 I . I ;, -t " Cr. I, THE INSTITUTE OF PAPER CHEMISTRY Appleton, Wisconsin BIBLIOGRAPHY ON. THE MANUFACTURE AND USES OF PAPER BAGS AND SACKS Project 2033 Progress Report Sixteen.. to MULTIWALL SHIPPING SACK PAPER MANUFACTURERS May, 1960 PREFACE This bibliography is a supplement to Progress Report Seven on the man- ufacture and uses of paper bags and sacks. The Abstract Bulletin of The Institute of Paper Chemistry and Chemical Abstracts have been searched through February, 1960, and Packaging Abstracts through December, 1959. 1. Abramson, Alvin A. Paper bags. U. S. patent 2,817,474(Dec. 24, 1957); B.I.P.C. 28:1020. A reinforced paper bag having a body of rectangular cross section is provided with overlapping seams on each end wall and a separate panel of stiff cardboard attached to the bottom. Food cans and other relatively heavy articles may be safely transported in the bag. 2.. Adhesives for Siebler bag-closing machines. Verpackungs Rundschau 9, no. 5:332(May, 1958); Packaging Abstr. 15:568. The adhesives are for models SII, SFH and SPH. They are synthetic resins which give rapid adhesion so that machine capacity is almost doubled. Bags 10 cm.. wide can be closed at the rate of 100 per minute. The adhesives can be so varied in composition, that with .a suitable paper, a bag can be reclosed after opening. .5. Air controls move bags of sugar through dryer to wrapper.
    [Show full text]
  • It's in the Bag - Twelve Language Activities ______Dr
    Teaching Threads It's In The Bag - Twelve Language Activities _____________________________________________________________________ Dr. Sharon A. Maroney (2009/1997) Western Illinois University – Quad Cities In advising teachers to increase active learning and reduce passive learning, the fundamental question arises, "But what do you do if you don't do worksheets?" This set of activities begins to answer that question. The activities presented are those that can be prepared easily and inexpensively by classroom teachers; can be adapted across grade or skill levels and subject areas, and used from independent to large- group work arrangements; provide unique ways for students to practice previously learned skills; grab student attention; and are lots of fun! This article presents 12 activities that promote active learning of various language arts skills. Each activity begins with a plain brown paper lunch bag. Activity 1 - There is was! Creative Storytelling This activity is especially successful after students have studied or experienced storytelling and storytellers. Each student, pair, or group of students is given a brown paper sack and directed not to open it until instructed to do so. Then the teacher presents this story starter on the board: "There it was! I just opened my locker after 2nd period, and there it was." The students are instructed to open their bags to find out what was in their locker and to create a story they will tell to the class. Students can tell their stories informally, or they can write their stories, practice their story telling, prepare costumes or props, and perform their stories for the class. Student storytellers can be video or audio recorded.
    [Show full text]
  • ENVIRONMENTAL IMPACT of PAPER and PLASTIC GROCERY SACKS a Mass Balance Problem with Multiple Recycle Loops
    16• class and home problems ) The object of this column is to enhance our readers' collection of interesting and novel problems in chemical engineering. Problems of the type that can be used to motivate the student by presenting a particular principle in class, or in a new light, or that can be assigned as a novel home problem, are requested, as well as those that are more traditional in nature and which elucidate difficult concepts. Please submit them to Professors James 0. Wilkes and Mark A. Burns, Chemical Engineer­ ing Department, University of Michigan, Ann Arbor, MI 48109-2136. ENVIRONMENTAL IMPACT OF PAPER AND PLASTIC GROCERY SACKS A Mass Balance Problem with Multiple Recycle Loops D. T. ALLEN, N. B AKSHANI University of California Los Angeles, CA 90024 covered in a mass and energy balance course, and the problem exposes students to the issue of product nvironmental issues are becoming increasingly life-cycle analysis. Specifically, the problem compares E important in the design of chemical processes paper and plastic grocery sacks based on energy and chemical products. Incorporating these issues requirements and environmental impacts. The prob­ into an already crowded chemical engineering cur­ lem is divided into five sections: riculum is a challenge. One way to address this 1. Background material challenge is to develop entire courses dedicated to 2. A problem statement environmental issues. An alternative strategy is to develop homework and design problems that can be 3. Open-ended questions for discussion used in existing chemical engineering courses, illus­ 4. A solution trating both fundamental engineering principles and 5.
    [Show full text]
  • Fact Sheet Paper and Plastic Sacks Provide Equivalent Shelf Life
    December 2019 Fact Sheet Paper and plastic sacks provide equivalent shelf life Research objectives The European Paper Sack Research Group (ESG) commissioned the Norwegian research organisation SINTEF to investigate the shelf life of the packaging solutions used most widely throughout Europe for the packaging of cement: paper sacks and polyethylene form-fill-seal (FFS) sacks. Stakeholders have claimed that plastic bags provide a better shelf life than paper bags. Although the typical storage time for bagged cement in Europe is estimated to be no longer than 2 to 3 months, the study set out to determine how the sacks perform throughout longer storage periods of up to 18 months. Materials For the investigation, a standard 25 kg European cement paper valve sack made of two paper layers of 80 g and 70 g with a 12 μm high density polyethylene (HDPE) free film barrier and a standard plastic sack made of three layers of COEX PE film (LDPE, HDPE and LLDPE) with a total thickness of 120 µm were used. All sacks were filled with Portland cement CEM I 52.5 R according to European standard EN 197-1 cement. Due to their smaller capacity, two plastic sacks were employed for each batch of 25 kg cement. Storage conditions Stored in an outside storage house in Norway, a total of three sacks per type were tested. Representing the typical secondary packaging, the sacks were stored on a wooden pallet covered by a plastic stretch film. The sacks were exposed to changing climatic conditions. Temperatures varied between –17.9 °C and 32.1 °C and the relative moisture ranged from 28% to 96% (sampling of humidity on a random basis).
    [Show full text]