Pulp and Paper Industry Byproducts

Total Page:16

File Type:pdf, Size:1020Kb

Pulp and Paper Industry Byproducts Pulp and Paper Industry Byproducts 551. 13C/12C composition, a novel parameter to study 554. Active carbon pools and enzyme activities in soils the downward migration of paper sludge in soils. amended with de-inking paper sludge. Lichtfouse, Eric; Rogers, Karyne; Payet, Cecile; and Renat, Chantigny, M. H.; Angers, D. A.; and Beauchamp, C. J. Jean-Christophe Canadian Journal of Soil Science 80(1): 99-105. (2000) Geochemical Transactions 3(6): 2002. (2002); ISSN: 1467- NAL Call #: 56.8 C162; ISSN: 0008-4271 4866. Descriptors: alkaline phosphatase/ application rates/ Notes: References: 15; illus. DOI: 10.1039/b205560k. available water/ biomass/ carbendazim/ carbon/ deficiency/ Descriptors: C-13/ C-12/ carbon/ environmental effects/ enzyme activity/ hydrolysis/ incorporation/ interference/ industrial waste/ isotope ratios/ isotopes/ pollution/ sewage levelling/ microbial flora/ microorganisms/ organic matter/ sludge/ sludge/ soils/ stable isotopes/ Environmental paper mill sludge/ phosphoric monoester hydrolases/ geology/ Geochemistry of rocks, soils, and sediments physical properties/ properties/ sludges/ soil/ soil © American Geological Institute amendments/ soil organic matter/ soil water/ soil water content/ wastes/ water availability/ water content/ alkaline 552. 13c study of soils 8 years after paper sludge phosphomonoesterase/ carbendazol/ MBC/ medamine/ disposal. micro organisms/ microbial biomass/ microflora/ organic Lichtfouse, Eric; Rogers, Karyne; Payet, Cecile; and Renat, matter in soil/ phosphatases/ soil moisture Christophe. Abstract: A field study was undertaken in Quebec province, In: 223rd National Meeting of the American Chemical Canada, on a well-drained clay loam and a poorly drained Society.Orlando, FL, USA.); Vol. 223(1-2): GEOC 8.; 2002. silty clay loam amended with de-inking paper sludge (DPS) Notes: ISSN: 0065-7727. at rates of 0 (control), 50 or 100 t ha-1. K2SO4-extractable C Descriptors: biochemistry and molecular biophysics/ soil (Cext), soil water content (SWC), microbial biomass C science/ terrestrial ecology: ecology, environmental (MBC) and different enzyme activity rates were periodically sciences/ waste management: sanitation/ paper sludge measured in soil during 1075 d following DPS disposal: agricultural lands, forestry lands, waste disposal incorporation. Compared with control soils, Cext content method/ soil properties/ meeting abstract increased by 100 to 200%, and soil water content increased © Thomson Reuters by 35% following incorporation of DPS at 100 t ha-1. Those differences decreased in time as DPS decomposed. Soil 553. Accumulation and availability of Zn, Cu, Mn and Fe MBC increased proportionally with the rate of DPS in soils polluted with paper mill waste water. amendment and was approx. twice the amount in soils Matli Srinivaschari; Dhakshinamoorthy, M.; and amended with 100 t ha-1 compared with the control. Arunachalam, G. Microbial quotient (ratio of MBC to total soil organic C) was Madras Agricultural Journal 87(4/6): 237-240. (2000) greater in DPS-amended than in control soils until day 370, NAL Call #: 22 M262; ISSN: 0024-9602 reflecting the input of labile C from DPS. Compared with the Descriptors: application date/ copper/ electrical control, fluorescein diacetate hydrolysis and alkaline conductivity/ gypsum/ iron/ irrigation/ irrigation water/ phosphatase activity rates increased by 40 to 100% when manganese/ NPK fertilizers/ nutrient availability/ paper mill adding 50 t DPS ha-1. However, the rates were similar for sludge/ polluted soils/ rice/ rice husks/ soil amendments/ 50 and 100 t DPS ha-1. It is concluded that DPS promoted soil fertility/ soil ph/ soil pollution/ soil toxicity/ trace microbial growth and activity in the soil by improving C and elements/ waste water/ zinc/ Madras/ microelements/ Mn/ water availability. However, levelling off of enzyme activity paddy/ rice hulls/ toxic soils/ watering at a DPS application >50 t ha-1 could reflect changes in soil Abstract: Field experiments were conducted at M/s Sun microbial community, or some kinetic interference or Paper Mill Farms, Cheranmahadevi, Tamil Nadu, India, nutrient deficiency induced by excessive C input. during Kar (June-August) and Pishanam (November- Reproduced with permission from the CAB Abstracts February) seasons, 1995-96, to determine the effect of database. continuous use of paper mill waste water on the accumulation of Zn, Cu, Fe and Mn in soil. The treatments 555. Aggregation and organic matter decomposition in included three different irrigation sources and three soil soils amended with de-inking paper sludge. amendments (NPK at 120:60:60 kg ha-1, rice husk ash and Chantigny, M. H.; Angers, D. A.; and Beauchamp, C. J. gypsum) with rice cv. ASD36 as test crop. Soils irrigated Soil Science Society of America Journal 63(5): 1214-1221. with paper mill waste water increased soil pH and electrical (Sept. 1999-Oct. 1999) conductivity (EC) in both seasons. Gypsum was better in NAL Call #: 56.9 So3; ISSN: 0361-5995 [SSSJD4] lowering pH than rice husk ash; whereas for EC, rice husk Descriptors: clay loam soils/ agricultural soils/ land ash proved better. DTPA extractable Zn, Cu, Fe and Mn application/ soil organic matter/ degradation/ application largely accumulated in the upper 15 cm soil depth and the rate/ soil aggregates/ soil aggregation/ Quebec/ stability/ extent of their accumulation was increased with increased paper mill sludge/ silty clay loam soils time of application. Application of rice husk ash proved Abstract: De-inking paper sludge (DPS) has been significant in preventing micronutrients from reaching toxic traditionally disposed of by burning or landfilling, but could levels in soil. be used as an organic amendment in agricultural soils. Our Reproduced with permission from the CAB Abstracts objective was to assess the impact of DPS incorporation on database. organic matter and aggregation of a clay loam (Typic Dystrochrept) and a silty clay loam (Typic Humaquept). Whole soil C, particulate (> 53 micrometers) and light 153 Use of Industrial Byproducts in Agriculture fraction (density < 1.8 Mg m(-3)) C, and water-stable Descriptors: pollution assessment control and aggregation were measured periodically during a 3-yr management/ soil science/ aggregation/ decomposition/ soil period after a single application of DPS at rates of 0 organic matter (control), 50, and 100 Mg ha(-1). Microscopic observations © Thomson Reuters of water-stable aggregates were also performed. Adding DPS increased whole soil C content, which remained 559. Agricultural use of three organic residues: Effect greater than in the control for the duration of the study. on orange production and on properties of a soil of the After 2 yr, about 40% of the initial material remained in the 'comarca costa de huelva' (sw spain). soil. The proportion of residual C attributed to DPS and Madejon, Engracia; Burgos, Pilar; Lopez, Rafael; and present in the particulate fraction remained constant at 70 Cabrera, Francisco to 90% during the first 2 yr of the study, whereas the Nutrient Cycling in Agroecosystems 65(3): 281-288. (2003) proportion of residual C present in the light fraction NAL Call #: S631 .F422; ISSN: 1385-1314 decreased from > 95% for fresh DPS to < 50% after 2 yr. Descriptors: enzymology: biochemistry and molecular One year after incorporation of DPS, the proportion of biophysics/ horticulture: agriculture/ soil science/ waste water-stable aggregates > 1 mm was 2 to 6 times larger in management: sanitation/ rutaceae: angiosperms, dicots, amended soils than in the control. This effect was still plants, spermatophytes, vascular plants/ field experiment: statistically significant after 3 yr. Microscopic observations applied and field techniques/ organic fertilization: applied revealed that DPS formed into clusters of wood fibers which and field techniques/ soil sampling: applied and field became encrusted with mineral particles. We hypothesized techniques/ Ec [Electrical Conductivity]/ humic substances/ that this encrustation provided physical protection to the municipal solid waste compost/ olive mill waste water decaying DPS which remained particulate (> 53 sludge compost/ organic residues: agricultural use/ pH/ micrometers) in size and progressively densified to > 1.8 paper mill sludge/ soil chemical properties/ soil enzymatic Mg m(-3). As a result, water-stable macroaggregates were activity/ soil properties/ soil quality/ total organic carbon formed with DPS as a central core. Abstract: Disposal of urban, agricultural and industrial This citation is from AGRICOLA. organic residues implies an increasing problem because of all the economic and environmental repercussions involved. 556. Aggregation and organic matter decomposition in One of the most adequate ways of managing this problem soils amended with de-inking paper sludge; Comments is the agricultural use of these wastes as organic on. amendments. Three organic residues (AC, olive mill waste Beyer, L. and Mueller, K. water sludge compost; MWC, municipal solid waste Soil Science Society of America Journal 64(4): 1544-1545. compost; and PS, paper mill sludge) were used in a 3-year (July 2000-Aug. 2000) field experiment involving orange production. The effect of NAL Call #: 56.9 So3; ISSN: 0361-5995 [SSSJD4]. their application on crop production and on soil quality was Notes: Comment on original article published in Soil investigated. Soil samples (0-20 cm depth) collected 11 Science Society of America Journal, 63(5), Sept/Oct, 1999, months after the last soil
Recommended publications
  • Pulp and Paper Industry Energy Bandwidth Study
    REPORT for American Institute of Chemical Engineers (AIChE) Pulp and Paper Industry Energy Bandwidth Study Prepared by Jacobs Greenville, South Carolina, USA and Institute of Paper Science and Technology (IPST) at Georgia Institute of Technology Atlanta, Georgia August 2006 Project Number: 16CX8700 P&P Industry Energy Bandwidth Study Table of Contents 1. INTRODUCTION ______________________________________________________2 2. EXECUTIVE SUMMARY________________________________________________3 3. DOMESTIC ENERGY CONSUMPTION AND PRODUCTION ________________12 4. PAPER INDUSTRY AVERAGE PROCESS ENERGY DEMAND ______________18 5. OVERALL DOMESTIC ENERGY BALANCE ______________________________32 6. ESTIMATED CONSUMPTION WITH “BAT”______________________________33 7. DESCRIPTION OF A MODERN MILL ___________________________________44 8. PRACTICAL MINIMUM ENERGY CONSUMPTION _______________________56 9. ACKNOWLEDGEMENTS ______________________________________________72 10. APPENDIX __________________________________________________________73 11. REFERENCES ______________________________________________________111 Project: 16CX8700 1 P&P Industry Energy Bandwidth Study 1. INTRODUCTION The American Institute of Chemical Engineers (AIChE) has been requested to manage a Project, on behalf of the Department of Energy’s Industrial Technologies Program (DOE-ITP), to develop estimates of the present energy consumption of the U.S. Pulp and Paper Industry and how much energy could be saved if more efficient types of pulp and paper manufacturing technologies as
    [Show full text]
  • Burning in Naval Stores Forest
    Proceedings: 3rd Tall Timbers Fire Ecology Conference 1964 Burning in Naval Stores Forest NORMAN R. HAWLEY Naval Stores Conservation Program U. S. Forest Service Valdosta, Georgia BEFORE discussing woods burning in naval stores, what is naval stores? First, be it understood that there are three fields within the activity, namely (1) wood distillation, or the process of obtaining the desired product from pine stumps; (2) the capture of tall oil in the sulfate pulping process, and (3) gum naval stores, or the harvesting of oleoresin or gum from standing, living pine trees, ob­ tained throughout a long working season of some seven months annually. Today, I shall discuss fire in its relation to the gum naval stores business. But first, how did the activity derive its odd name? There is cause for puzzlement. The story is told-with tongue in cheek-that a Secretary of the Navy, somewhat confused, but firm in his resolve to be prepared, declared: "I don't know what it is, but let's get some of it!" The term is a carry-over from the days of sail. Then the product was in prime demand. It caulked the hulls of wooden ships, and treated rigging against the erosive action of sun, rain, wind, ice, and salt water. How old is the business? We know that flammable gum featured heavily in the combustibles tossed around in ancient Mediterranean sea fights. Some writers speak with authority that it dates from the year 315 B. C. Others point to the Bible and quote from chapter and verse how Noah treated the hull of the Ark with derivatives from the 81 NORMAN R.
    [Show full text]
  • BRITISH COLUMBIA PULP and PAPER SECTOR SUSTAINABILITY: Sector Challenges and Future Opportunities B.C
    BRITISH COLUMBIA PULP AND PAPER SECTOR SUSTAINABILITY: Sector Challenges and Future Opportunities B.C. Forest Sector Competitiveness Agenda INTRODUCTION The British Columbia forest sector provides well-paying jobs for tens of thousands of British Columbians, many of them in rural communities, and contributes taxes for important services across the province. This integrated sector is made up of many highly interdependent sub-sectors so it can make the most efficient use of and gain the most value from all the fibre harvested. The pulp and paper sector processes as much as 50% of the total volume of timber harvested each year in British Columbia (B.C.) mainly in the form of residual chips, shavings, sawdust and hog fuel. It generates value from lower quality timber not suitable for manufacture into lumber and other solid wood products. The conversion of these residuals and lower valued fibre into high-valued pulp and paper products results in about $4 billion in sales annually to markets in China, the Unites States, Japan, and other Asian and European countries. The sector is, however, facing challenges as demand for certain types of paper declines and lower-cost competitors compete for market share. In 2015, as part of a process led by the Ministry of Forests, Lands and Natural Resource Operations (FLNRO), senior government and forest industry representatives undertook to identify ways to maintain B.C.’s overall forest sector competitiveness. A collaborative review was undertaken on a number of the key subsectors of the forest sector to position them for the future. The B.C. Pulp and Paper Sustainability Project was launched as part of this competitiveness agenda.
    [Show full text]
  • Print Definitions
    Publishing & Distribution DEPARTMENT OF ADMINISTRATIVE SERVICES Print Definitions Accordion fold: To fold into Bond Paper: Variety of paper pleats resembling the bellows usually with high cotton fiber of an accordion: to make a fan content. by accordion-folding a sheet Break for color: Also known of paper. as color break or color Against the grain: The separation. Separate the parts arrangement, direction, or to be printed in different pattern of the fibrous tissue in colors. wood/paper. Brightness: The attribute of Alteration: A change; light-source colors by which modification or adjustment. emitted light is ordered Banding: A thin strip of flexible continuously from light to dark material used to encircle and in correlation with its intensity. bind one object or to hold a The brilliance or reflectance of number of objects together. paper. Bind: To fasten or secure. Carbonless: Pressure sensitive writing paper that does not Bindery: A place where books use carbon; paper that makes are bound or printed materials multiple copies without are finished. intervening layers. Bleed: To permit (printed Camera-ready copy: Print illustrations or ornamentation) ready art, hard copy paper to run off the page or sheet. originals. Blind embossing: To emboss Cast coated: Coated paper or impress (the cover or spine with a high gloss reflective of a book) without using ink or finish. foil. A-Cam | Page 1 Coated paper: Clay coated Cover paper: A heavy printing printing paper with a smooth paper used to cover books. finish. Crash number: Numbering Coil Binding: A method of paper by pressing an image binding books by threading on the first sheet which is wire or plastic coils into transferred to all parts of the punched holes.
    [Show full text]
  • Paper, Paperboard and Wood Pulp Markets, 2010-2011 Chapter 8
    UNECE/FAO Forest Products Annual Market Review, 2010-2011 __________________________________________________________ 71 8 Paper, paperboard and woodpulp markets, 2010-2011 Lead Author, Peter Ince Contributing Authors, Eduard Akim, Bernard Lombard, Tomas Parik and Anastasia Tolmatsova Highlights • Paper and paperboard output rebounded along with overall industrial production in both Europe and the United States, but has not yet fully recovered to the peak levels of 2007-2008. • Generally more robust market conditions prevailed from 2010 to early 2011, with higher consumption and prices for most pulp, paper and paperboard commodities. • Prices reached a plateau by late 2010 and may have peaked in a cycle that began with rebound from the global financial crisis of 2008-2009; but prices still remained high in early 2011. • The Russian Federation is seeing an almost complete recovery of pulp and paper output to the levels that preceded the global financial crisis of 2008-2009. • European pulp, paper and paperboard output rebounded in 2010 after declining in 2008-2009, but the production levels before the crisis have not yet been reached. • Similarly, US production of pulp, paper and paperboard all rebounded from the sharp declines of 2008-2009, but production levels in 2010-2011 remained below previous cyclical peak levels. • A major project to expand use of larch was initiated in the Russian Federation, while wood pellet output and wood energy use also expanded in the Russian pulp and paper industry. • The market rebound coincides with expanding industry interest in the contributions of paper and paperboard products to green and sustainable development. • Green and sustainable product features such as use of renewable resources and product recyclability help support sustainability initiatives and an evolving symbiotic relationship between pulp and paper market development and the green economy.
    [Show full text]
  • A3 Paper Size: ISO Paper Size 297 X 420Mm Used for Small Poster Or Small News Paper
    A3 Paper size: ISO paper size 297 x 420mm used for small poster or small news paper. A4 Paper size: ISO paper size 210 x 297mm used for Letterhead. Accordion fold: Bindery term, two or more parallel folds which open like an accordion. Acetate: a transparent sheet placed over artwork allowing the artist to write instructions or indicate where second colour is to be placed. Acid Resist: An acid-proof protective coating applied to metal plates prior to etching. Against the grain: At right angles to direction of paper grain. Alteration: Change in copy of specifications after production has begun. Aqueous Coating: Coating in a water base and applied like ink by a printing press to protect and enhance the printing underneath. Artboard: Alternate term for mechanical art. Ascender: any part of a lower case letter extending above the x-height. For example, the upper half of the vertical in the letters b or h. Authors corrections: changes made to the copy by the author after typesetting but not including those made as a result of errors in keying in the copy. Back up: Printing the second side of a sheet already printed on one side. Backslant: Letters that slant the opposite way from italic characters. Banding: Method of packaging printed pieces of paper using rubber or paper bands. Basis weight: Weight in pounds of a ream of paper cut to the basic size for its grade. Bind: To fasten sheets or signatures with wire, thread, glue. or by other means. Bindery: The finishing department of a print shop or firm specializing in finishing printed products.
    [Show full text]
  • DRAFT UGANDA STANDARD First Edition 2015-Mm-Dd
    DUS DEAS 857 DRAFT UGANDA STANDARD First Edition 2015-mm-dd Specification for carbon paper STANDARD UGANDA DRAFT Reference number DUS DEAS 857: 2015 © UNBS 2015 DUS DEAS 857:2015 Compliance with this standard does not, of itself confer immunity from legal obligations A Uganda Standard does not purport to include all necessary provisions of a contract. Users are responsible for its correct application STANDARD UGANDA © UNBS 2015 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilised in any form or by any means, electronicDRAFT or mechanical, including photocopying and microfilm, without prior written permission from UNBS. Requests for permission to reproduce this document should be addressed to The Executive Director Uganda National Bureau of Standards P.O. Box 6329 Kampala Uganda Tel: 256 41 505 995 Fax: 256 41 286 123 E-mail: [email protected] Web: www.unbs.go.ug ii © UNBS 2015 - All rights reserved DUS DEAS 857:2015 National foreword Uganda National Bureau of Standards (UNBS) is a parastatal under the Ministry of Trade, Industry and Cooperatives established under Cap 327, of the Laws of Uganda, as amended. UNBS is mandated to co- ordinate the elaboration of standards and is (a) a member of International Organisation for Standardisation (ISO) and (b) a contact point for the WHO/FAO Codex Alimentarius Commission on Food Standards, and (c) the National Enquiry Point on TBT Agreement of the World Trade Organisation (WTO). The work of preparing Uganda Standards is carried out through Technical Committees. A Technical Committee is established to deliberate on standards in a given field or area and consists of representatives of consumers, traders, academicians, manufacturers, government and other stakeholders.
    [Show full text]
  • The Exciting History of Carbon Paper!
    The Exciting History of Carbon Paper! What Is It? Carbon paper is thin paper coated with a mixture of wax and pigment, that is used between two sheets of ordinary paper to make one or more copies of an original document. When Was It Invented And Why? The exact origin of carbon paper is somewhat uncertain. The first documented use of the term "carbonated paper" was in 1806, when an Englishman, named Ralph Wedgwood, issued a patent for his "Stylographic Writer." However, Pellegrino Turri had invented a typewriting machine in Italy by at least 1808, and since "black paper" was essential for the operation of his machine, he must have perfected his form of carbon paper at virtually the same time as Wedgwood, if not before (Adler, 1973). Interestingly, both men invented their "carbon paper" as a means to an end; they were both trying to help blind people write through the use of a machine, and the "black paper" was really just a substitute for ink. In its original form Wedgwood's "Stylographic Writer" was intended to help the blind write through the use of a metal stylus instead of a quill. A piece of paper soaked in printer's ink and dried, was then placed between two sheets of writing paper in order to transfer a copy onto the bottom sheet. Horizontal metal wires on the writing-board acted as feeler-guides for the stylus and presumably helped the blind to write. [Although invented in 1803, the steel pen only became common around the middle of the nineteenth century; the quill was still in use at the end of the century, and remained the symbol of the handwriting age.
    [Show full text]
  • Recyclingecycling
    YOUR COMMUNITY. YOUR ENVIRONMENT. RRecyclingecycling YOUR CHOICE. www.chulavistaca.gov/clean Funded by a grant from the California Department of Conservation, Division of Recycling ENVIRONMENTAL SERVICES DIVISION Public Works Department 1800 Maxwell Road,Chula Vista, CA 91911 (619) 691-5122 Printed on 30% post-consumer content paper. ATAT WORKWORK Be a part of the solution! WHY RECYCLE?Some facts... We can all do our part to help our environment with the right tools and a little practice! Recycling is easier than ever----and we hope As more people become aware of our environment and what’s happening you’ll look at “trash” in a whole new way! around us, it’s important to let them know the facts---and how every little bit can help. We can make a difference. Let’s get started! •Each worker generates 5 pounds of office-related waste each day. •Recycling one ton of paper will save approcimately 3.3 cubic yards of landfill space. Important things to know about: •Every ton of paper recycled saves 17 trees. RECYCLING •It takes 64% less energy to make paper products from recycled paper. •Using recycled paper to manufacture new paper produces about 50% less air and water pollution. No more sorting recyclables! •Recycling one ton of office paper keeps 7,000 gallons of water out of the 1 Paper, cans, bottles, plastics and other recyclable papermaking process. items don’t need to get sorted! Simply put them all in your recycle bin, cart, or container. •It takes 95% less energy to make aluminum products from recycled aluminum.
    [Show full text]
  • A Historical Geography of the Paper Industry in the Wisconsin River Valley
    A HISTORICAL GEOGRAPHY OF THE PAPER INDUSTRY IN THE WISCONSIN RIVER VALLEY By [Copyright 2016] Katie L. Weichelt Submitted to the graduate degree program in Geography& Atmospheric Science and the Graduate Faculty of the University of Kansas in partial fulfillment of the requirements for the degree of Doctor of Philosophy. ________________________________ Chairperson Dr. James R. Shortridge ________________________________ Dr. Jay T. Johnson ________________________________ Dr. Stephen Egbert ________________________________ Dr. Kim Warren ________________________________ Dr. Phillip J. Englehart Date Defended: April 18, 2016 The Dissertation Committee for Katie L. Weichelt certifies that this is the approved version of the following dissertation: A HISTORICAL GEOGRAPHY OF THE PAPER INDUSTRY IN THE WISCONSIN RIVER VALLEY ________________________________ Chairperson Dr. James R. Shortridge Date approved: April 18, 2016 ii Abstract The paper industry, which has played a vital social, economic, and cultural role throughout the Wisconsin River valley, has been under pressure in recent decades. Technology has lowered demand for paper and Asian producers are now competing with North American mills. As a result, many mills throughout the valley have been closed or purchased by nonlocal corporations. Such economic disruption is not new to this region. Indeed, paper manufacture itself emerged when local businessmen diversified their investments following the decline of the timber industry. New technology in the late nineteenth century enabled paper to be made from wood pulp, rather than rags. The area’s scrub trees, bypassed by earlier loggers, produced quality pulp, and the river provided a reliable power source for new factories. By the early decades of the twentieth century, a chain of paper mills dotted the banks of the Wisconsin River.
    [Show full text]
  • Timber Bamboo Pulp TROY RUNGE, CARL HOUTMAN, ALBERTO NEGRI, and JACKIE HEINRICHER
    NONWOOD PULPING Timber bamboo pulp TROY RUNGE, CARL HOUTMAN, ALBERTO NEGRI, AND JACKIE HEINRICHER ABSTRACT: Fast-growing biomass, such as bamboo, has the potential to serve an important future role in the pulp and paper industry with potential to both lower resource costs and improve a product’s sustainability. Moso bamboo is particularly interesting due to its fast growth and size, which allows it to be handled and chipped similarly to wood resources. In this study, we will share results of the chip preparation, kraft cooking, and ECF bleaching of this bamboo species and compare its pulpability, bleachability, and physical properties to a fast growing hybrid pop­ lar tree. Results indicate that the bamboo chips cooked and bleached similarly to the poplar hardwood, allowing for co-cooking. The resulting pulps had superior tensile properties at low refining, but did have higher fines that low­ ered drainability as measured by Canadian Standard Freeness. The bamboo fiber morphology was also measured, indicating the fiber to have length weighted average fiber lengths and coarseness values to be greater than the pop­ lar wood studied, which should allow this material to be used in many paper grades. Application: The results of this study would be best used by industry professionals interested in the potential of Moso bamboo as a papermaking fiber. Cooking and bleaching conditions are provided along with handsheet properties and fiber morphologies. ith increasing burdens on land to produce food for the pulp and paper industry. This species originates in W and biomass for energy and materials, in combi­ China, where it is still a major species harvested for its mature nation with rising costs of biomass resources, the pulp culms to use in construction material and pulp feedstock and and paper industry will need fast growing materials to for its young shoots to use for food.
    [Show full text]
  • NIAC 2014 Phase I Bin Chen Final Report 3D Photocatalytic Air
    NATIONAL AERONAUTICS AND SPACE ADMINISTRATION NASA-INSTITUTE-FOR-ADVANCED-CONCEPTS-(NIAC) PHASE I FINAL TECHNICAL REPORT ON 3D Photocatalytic Air Processor for Dramatic Reduction of Life Support Mass and Complexity April 27, 2015 Reporting period: 07/07/14 to 04/27/2015 From NASA Ames Research Center Moffett Field, CA Technical Point of Contact: Dr. Bin Chen Principal Investigator Tel: 650 6040310 Fax: 650 604 6779 Email: [email protected] Co- Investigators: Darrell Jan Kenny Cheung John Hogan NASA Ames Research Center 1 3D Photocatalytic Air Processor for Dramatic Reduction of Life Support Mass and Complexity Final Report for the Period of July 07, 2014 to April 27, 2015 1. Summary To dramatically reduce the cost and risk of CO2 management systems in future extended missions, we have conducted preliminary studies on the materials and device development for advanced “artificial photosynthesis” reaction systems termed the High Tortuosity PhotoElectroChemical (HTPEC) system. Our Phase I studies have demonstrated that HTPEC operates in much the same way a tree would function, namely directly contacting the cabin air with a photocatalyst in the presence of light and water (as humidity) to immediately conduct the process of CO2 reduction to O2 and useful, “tunable” carbon products. This eliminates many of the inefficiencies associated with current ISS CO2 management systems. We have laid the solid foundation for Phase II work to employ novel and efficient reactor geometries, lighting approaches, 3D manufacturing methods and in-house grown novel catalytic materials. The primary objective of the proposed work is to demonstrate the scientific and engineering foundation for light-activated, compact devices capable of converting CO2 to O2 and mission- relevant carbon compounds.
    [Show full text]