DOCSLIB.ORG

Sustainable Energy and Nutrient Recovery from Swine Waste Adib Amini University of South Florida, [email protected]

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Sustainable Energy and Nutrient Recovery from Swine Waste Adib Amini University of South Florida, Adibamini@Gmail.Com University of South Florida Scholar Commons Graduate Theses and Dissertations Graduate School 3-24-2014 Sustainable Energy and Nutrient Recovery from Swine Waste Adib Amini University of South Florida, [email protected] Follow this and additional works at: https://scholarcommons.usf.edu/etd Part of the Environmental Engineering Commons, and the Sustainability Commons Scholar Commons Citation Amini, Adib, "Sustainable Energy and Nutrient Recovery from Swine Waste" (2014). Graduate Theses and Dissertations. https://scholarcommons.usf.edu/etd/4977 This Thesis is brought to you for free and open access by the Graduate School at Scholar Commons. It has been accepted for inclusion in Graduate Theses and Dissertations by an authorized administrator of Scholar Commons. For more information, please contact [email protected]. Sustainable Energy and Nutrient Recovery from Swine Waste by Adib Amini A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Environmental Engineering Department of Civil and Environmental Engineering College of Engineering University of South Florida Co-Major Professor: Sarina Ergas, Ph.D. Co-Major Professor: Qiong Zhang, Ph.D. Jeffrey Cunningham, Ph.D. Date of Approval: March 24, 2014 Keywords: life cycle assessment, anaerobic digestion, struvite, ion exchange, concentrated animal feeding operations (CAFO) Copyright © 2014, Adib Amini DEDICATION I would like to dedicate this work to my family who has provided me the strongest foundation, which I will keep throughout my life. I am always grateful to them for their love, their joy, and the countless hours spent in selflessly helping me to grow. ACKNOWLEDGMENTS This material is based upon work supported by the National Science Foundation under Grant No. DUE-0965743 and No. 1243510, as well as by the United States-Israel Binational Agricultural Research and Development Fund (BARD) under Grant No. IS-4360-10. Any opinions, findings, conclusions, or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation or of the BARD. I would like to thank enormously my committee members and especially my advisors for all of their contributions toward the completion of this thesis. They truly sacrificed of their time and ability for me to succeed. I have learned much from them that I will take with me throughout my life. Their compassion stands out as exemplary and distinguished and will always be remembered. I would also like to acknowledge my research group members who contributed significantly to performing the experimental work on the bench scale system. Their contributions are as follows: Meng Wang and Nathan Manser: collecting E. coli data; Verónica Aponte-Morales: performing the IX experiment, collecting water quality data and measuring N concentrations after IX, measuring ion concentrations with the IC throughout the entire treatment train Merrill Peyton Dillbeck: collecting water quality data and measuring N concentrations before AD, after AD, and after precipitation Furthermore, their advice, joyful spirit, and accompaniment in this process have been indispensable. I would also like to acknowledge the number of experts, professionals, and manufacturers who assisted with either providing data or helping ensure accuracy of data and calculations: Kylo Heller, KEMA LLC (Phred); Angie McEliece, RCM International, LLC; Liat Birnhack, Technion, Israel Institute of Technology; Tom Davis, Tonka Engineering; Ahren Britton, Ostara Inc. TABLE OF CONTENTS LIST OF TABLES ......................................................................................................................... iii LIST OF FIGURES .........................................................................................................................v ABSTRACT................................................................................................................................. viii CHAPTER 1: INTRODUCTION ....................................................................................................1 CHAPTER 2: LITERATURE REVIEW .........................................................................................6 2.1 Anaerobic Digestion of Swine Waste ........................................................................... 6 2.1.1 Life Cycle Assessments of Anaerobic Digestion Systems ...........................................................................................................7 2.2 Struvite Precipitation .................................................................................................... 8 2.2.1 Background .....................................................................................................9 2.2.2 Depletion of Phosphorus as a Resource ..........................................................9 2.2.3 Factors Affecting Struvite Precipitation .......................................................10 2.2.4 Effects of Foreign Ions on Struvite Precipitation .........................................14 2.2.5 Unintentional Struvite Precipitation .............................................................16 2.2.6 System Configurations for Controlled Struvite Precipitation ..................................................................................................16 2.2.7 Struvite Precipitation from Anaerobically Digested Swine Waste..................................................................................................18 2.2.8 Effectiveness of Struvite as a Fertilizer ........................................................20 2.2.9 Cost Considerations and Assessments of Struvite Recovery Systems .........................................................................................23 2.2.10 Life Cycle Assessments of Struvite Recovery Systems .........................................................................................................27 2.3 Ammonium Removal and Recovery Systems ............................................................ 28 2.3.1 Life Cycle Assessments of Ion Exchange Systems ......................................30 CHAPTER 3: MATERIALS AND METHODS ...........................................................................32 3.1 Experimental Materials and Methods ......................................................................... 32 3.1.1 Anaerobic Digestion .....................................................................................33 3.1.2 Struvite Precipitation ....................................................................................34 3.1.3 Ion Exchange Methods..................................................................................35 3.1.4 Analytical Methods .......................................................................................36 3.2 Life Cycle Assessment Methods................................................................................. 38 3.2.1 Evaluation Scenarios....................................................................................39 3.2.2 Goal and Scope ............................................................................................43 3.3 Life Cycle Cost Analysis Methods ............................................................................. 44 i CHAPTER 4: RESULTS AND DISCUSSION.............................................................................46 4.1 Experimental Results .................................................................................................. 46 4.1.1 Water Quality and System Performance Parameters ....................................46 4.1.2 Fate of Phosphorus........................................................................................48 4.1.3 The Fate of Nitrogen .....................................................................................51 4.1.4 Fate of Other Dissolved Ions ........................................................................53 4.1.5 Comparison of Precipitates from Different Struvite Precipitation Processes..................................................................................54 4.1.6 Assessment of Four Natural Zeolites ............................................................64 4.2 Life Cycle Environmental Impact and Cost Assessment............................................ 68 4.2.1 Life Cycle Inventory .....................................................................................69 4.2.2 Impact Assessment........................................................................................78 4.2.3 Life Cycle Cost Analysis ..............................................................................86 4.2.3.1 AD Costs ....................................................................................... 86 4.2.3.2 Struvite Precipitation .................................................................... 87 4.2.3.3 IX using Natural Zeolites .............................................................. 91 4.2.3.4 Overall Cost Analysis ................................................................... 93 4.3 Alternative Process Designs ........................................................................................94 CHAPTER 5: CONCLUSIONS AND RECOMMENDATIONS .................................................97 5.1 Experimental Conclusions .......................................................................................... 97 5.2 LCA Conclusions .......................................................................................................
Load more

Recommended publications
  • IFAC Summary of Phosphate Citations the International Food Additives
    IFAC Summary of Phosphate Citations The International Food Additives Council (IFAC) is a global association representing manufacturers of food ingredients, including phosphates used as food additives. IFAC strives for the harmonization of food additive standards and specifications worldwide, and supports regulatory processes to identify, categorize and document the safety of food additives. Phosphorus is an essential element critical for several key biochemical processes in the body, including development of cell membranes, growth of bones and teeth, maintenance of acid-base balance, and cellular energetics. Phosphorus is naturally occurring in various types of foods, including meat, grains, and dairy. Additionally, inorganic phosphates can be added to foods to improve texture, flavor, shelf life, and other technological functions. Inorganic phosphates are salts or esters of phosphoric acid. Phosphoric acid is produced starting with naturally-occurring phosphate ore mined around the world. As phosphoric acid, it can be combined with other elements such as calcium, potassium, and sodium into "salts." Phosphate additives are contained in a large number of processed foods and beverages and help contribute to the vast food supply while also minimizing food waste. Following is a comprehensive list of phosphates that are approved for use in food. All of these phosphates have either been approved by the US Food and Drug Administration (FDA) as a direct food additive or reviewed by FDA and determined to be generally recognized as safe (GRAS). Also included are the CAS numbers, International Numbering System (INS) numbers, Food Chemicals Codex (FCC) references and Joint FAO/WHO Expert Committee on Food Additives (JECFA) evaluations, as available.
    [Show full text]
  • Low Acyl Gellan Gum for Inclusion on the National List of Substances Allowed in Organic Production and Handling (7 CFR 205.605 (B)
    Petition for Evaluation of Low Acyl Gellan Gum for Inclusion on the National List of Substances Allowed in Organic Production and Handling (7 CFR 205.605 (b) Submitted by: CP Kelco U.S., Inc. 3100 Cumberland Blvd., Suite 600 Atlanta, GA 30339 Date: 08 August 2019 CP Kelco U.S., Inc. 08 August 2019 National Organic List Petiion Low Acyl Gellan Gum Table of Contents Item A.1 — Section of National List ........................................................................................................... 4 Item A.2 — OFPA Category - Crop and Livestock Materials .................................................................... 4 Item A.3 — Inert Ingredients ....................................................................................................................... 4 1. Substance Name ................................................................................................................................... 5 2. Petitioner and Manufacturer Information ............................................................................................. 5 2.1. Corporate Headquarters ................................................................................................................5 2.2. Manufacturing/Processing Facility ...............................................................................................5 2.3. Contact for USDA Correspondence .............................................................................................5 3. Intended or Current Use .......................................................................................................................5
    [Show full text]
  • United States Patent (19) (11) 4,247,526 Jarvis Et Al
    United States Patent (19) (11) 4,247,526 Jarvis et al. 45) Jan. 27, 1981 (54) METHOD FOR PRE PARING DICALCIUM Primary Examiner-O. R. Vertiz PHOSPHATE DHYDRATE WITH Assistant Examiner-Gregory A. Heller IMPROVED STABILITY Attorney, Agent, or Firm-S. M. Tarter; W. H. Duffey; (75) Inventors: William M. Jarvis, Webster Groves; F. D. Shearin Keun. Y. Kim, Clayton, both of Mo. 57 ABSTRACT (73) Assignee: Monsanto Company, St. Louis, Mo. Dicalcium phosphate dihydrate containing a sufficient amount of trimagnesium phosphate and/or tetrasodium 21) Appl. No.: 43,412 pyrophosphate to inhibit spontaneous hydrolysis and /or decomposition of the dicalcium phosphate dihy (22) Filed: May 29, 1979 drate is widely used as a dental polishing agent with and (51) int. Cl. ...................... COB 00/00; C01B 15/16; without added fluoride. Now it has been found that COB 25/26 dicalcium phosphate dihydrate containing a sufficient (52) U.S. C. .................................... 423/266; 423/267; amount of pyrophosphate to provide hydrolytic stabil 423/308; 423/311; 424/57 ity to the dicalcium phosphate can have improved fluo (58) Field of Search ............... 423/265, 266, 267, 307, ride stability when about 0.1 weight percent to about 5 423/308,309, 311, 313; 424/57 weight percent of trimagnesium phosphate, and about 0.1 weight percent to about 3 weight percent of at least (56) References Cited one pharmaceutically acceptable condensed phosphate U.S. PATENT DOCUMENTS salt is added to the formulation. In the preferred em 2,852,341 9/1958 Bell et al. .... 8 was 423/308 bodiment less than 2 percent sodium tripolyphosphate 3,012,852 12/1961 Nelson ...............
    [Show full text]
  • Orthophosphoric Acid and Inorganic Phosphate Compounds, Including Ortho- and Condensed Phosphates) (Various Casrns Included in the Text)
    FINAL 3-1-2011 Provisional Peer-Reviewed Toxicity Values for Inorganic Phosphates (Orthophosphoric Acid and Inorganic Phosphate Compounds, Including Ortho- and Condensed Phosphates) (Various CASRNs included in the text) Superfund Health Risk Technical Support Center National Center for Environmental Assessment Office of Research and Development U.S. Environmental Protection Agency Cincinnati, OH 45268 AUTHORS, CONTRIBUTORS, AND REVIEWERS CHEMICAL MANAGER Custodio V. Muianga, PhD, MPH National Center for Environmental Assessment, Cincinnati, OH DRAFT DOCUMENT PREPARED BY ICF International 9300 Lee Highway Fairfax, VA 22031 PRIMARY INTERNAL REVIEWERS Dan D. Petersen, PhD, DABT National Center for Environmental Assessment, Cincinnati, OH Anuradha Mudipalli, MSc, PhD National Center for Environmental Assessment, Research Triangle Park, NC This document was externally peer reviewed under contract to Eastern Research Group, Inc. 110 Hartwell Avenue Lexington, MA 02421-3136 Questions regarding the contents of this document may be directed to the U.S. EPA Office of Research and Development’s National Center for Environmental Assessment, Superfund Health Risk Technical Support Center (513-569-7300). TABLE OF CONTENTS COMMONLY USED ABBREVIATIONS .................................................................................... ii BACKGROUND .............................................................................................................................3 HISTORY ...................................................................................................................................3
    [Show full text]
  • 2019 Trace Minerals
    United States Department of Agriculture Agricultural Marketing Service | National Organic Program Document Cover Sheet https://www.ams.usda.gov/rules-regulations/organic/national-list/petitioned Document Type: ☐ National List Petition or Petition Update A petition is a request to amend the USDA National Organic Program’s National List of Allowed and Prohibited Substances (National List). Any person may submit a petition to have a substance evaluated by the National Organic Standards Board (7 CFR 205.607(a)). Guidelines for submitting a petition are available in the NOP Handbook as NOP 3011, National List Petition Guidelines. Petitions are posted for the public on the NOP website for Petitioned Substances. ☒ Technical Report A technical report is developed in response to a petition to amend the National List. Reports are also developed to assist in the review of substances that are already on the National List. Technical reports are completed by third-party contractors and are available to the public on the NOP website for Petitioned Substances. Contractor names and dates completed are available in the report. Trace Minerals Livestock 1 Identification of Petitioned Substance 2 3 “Trace minerals” is a term for multiple nutritional elements added to livestock, poultry, and companion 4 animal diets in micro quantities only (i.e., measured in milligrams per pound or small units) (AAFCO 5 2019). While the Association of American Feed Control Officials (AAFCO) lists only cobalt, copper, iodine, 6 iron, manganese, and zinc as trace minerals added to animal feeds (AAFCO 2019), this technical report also 7 discusses chromium, molybdenum, and selenium, which are all commonly found in commercial trace 8 mineral products on the market for inclusion in animal feeds.
    [Show full text]
  • Safety Assessment of Phosphoric Acid and Simple Salts As Used in Cosmetics
    Safety Assessment of Phosphoric Acid and Simple Salts as Used in Cosmetics Status: Scientific Literature Review for Public Comment Release Date: November, 2015 Panel Date: March 31-April 1, 2016 All interested persons are provided 60 days from the above date to comment on this safety assessment and to identify additional published data that should be included or provide unpublished data which can be made public and included. Information may be submitted without identifying the source or the trade name of the cosmetic product containing the ingredient. All unpublished data submitted to CIR will be discussed in open meetings, will be available at the CIR office for review by any interested party and may be cited in a peer-reviewed scientific journal. Please submit data, comments, or requests to the CIR Director, Dr. Lillian J. Gill. The 2015 Cosmetic Ingredient Review Expert Panel members are: Chair, Wilma F. Bergfeld, M.D., F.A.C.P.; Donald V. Belsito, M.D.; Ronald A. Hill, Ph.D.; Curtis D. Klaassen, Ph.D.; Daniel C. Liebler, Ph.D.; James G. Marks, Jr., M.D.; Ronald C. Shank, Ph.D.; Thomas J. Slaga, Ph.D.; and Paul W. Snyder, D.V.M., Ph.D. The CIR Director is Lillian J. Gill, D.P.A. This report was prepared by Wilbur Johnson, Jr., M.S., Senior Scientific Analyst and Bart Heldreth, Ph.D., Chemist. © Cosmetic Ingredient Review 1620 L STREET, NW, SUITE 1200 ◊ WASHINGTON, DC 20036-4702 ◊ PH 202.331.0651 ◊ FAX 202.331.0088 ◊ [email protected] INTRODUCTION The safety of the following 31 ingredients, phosphoric acid and its salts, as used
    [Show full text]
  • ANR Rule Filing Package
    Emergency Rule Coversheet Julie S. Moore, Secretary Agency of Natural Resources Revised Aug 14, 2018 page 2 Emergency Rule Coversheet 1. TITLE OF RULE FILING: Investigation and Remediation of Contaminated Properties Rule 2. ADOPTING AGENCY: Agency of Natural Resources 3. PRIMARY CONTACT PERSON: (A PERSON WHO IS ABLE TO ANSWER QUESTIONS ABOUT THE CONTENT OF THE RULE). Name: Chuck Schwer Agency: Agency of Natural Resources Mailing Address: 1 National Life Drive, Davis 1, Montpelier, Vermont 05620 Telephone: 802 249 - 5324 Fax: - E-Mail: Web URL(WHERE THE RULE WILL BE POSTED): http://dec.vermont.gov/commissioners-office/pfoa 4. SECONDARY CONTACT PERSON: (A SPECIFIC PERSON FROM WHOM COPIES OF FILINGS MAY BE REQUESTED OR WHO MAY ANSWER QUESTIONS ABOUT FORMS SUBMITTED FOR FILING IF DIFFERENT FROM THE PRIMARY CONTACT PERSON). Name: Diane Sherman Agency: Agency of Natural Resources Mailing Address: 1 National Life Drive, Davis 2, Montpelier, Vermont 05620 Telephone: 802 505 - 0125 Fax: - E-Mail: [email protected] 5. RECORDS EXEMPTION INCLUDED WITHIN RULE: (DOES THE RULE CONTAIN ANY PROVISION DESIGNATING INFORMATION AS CONFIDENTIAL; LIMITING ITS PUBLIC RELEASE; OR OTHERWISE EXEMPTING IT FROM INSPECTION AND COPYING?) No IF YES, CITE THE STATUTORY AUTHORITY FOR THE EXEMPTION: PLEASE SUMMARIZE THE REASON FOR THE EXEMPTION: 6. LEGAL AUTHORITY / ENABLING LEGISLATION: Revised Aug 14, 2018 page 3 Emergency Rule Coversheet (THE SPECIFIC STATUTORY OR LEGAL CITATION FROM SESSION LAW INDICATING WHO THE ADOPTING ENTITY IS AND THUS WHO THE SIGNATORY SHOULD BE. THIS SHOULD BE A SPECIFIC CITATION NOT A CHAPTER CITATION). 10 V.S.A. § 6603 7. EXPLANTION OF HOW THE RULE IS WITHIN THE AUTHORITY OF THE AGENCY: SECTION 6603 OF TITLE 10 OF THE VERMONT STATUTES ANNOTATED ASSIGNS THE AGENCY OF NATURAL RESOURCES WITH THE RESPONSIBILITY TO ADOPT RULES IMPLEMENTING THE PROVISIONS OF THE CHAPTER, INCLUDING THE DEFINITION OF HAZARDOUS MATERIAL IN 10 V.S.A.
    [Show full text]
  • IDEM Remediation Closure Guide
    INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT Remediation Closure Guide March 22, 2012 With corrections through July 9, 2012 Office of Land Quality Indiana Department of Environmental Management Disclaimer This Nonrule Policy Document (NPD) is being established by the Indiana Department of Environmental Management (IDEM) consistent with its authority under IC 13-14-1-11.5. It is intended solely as guidance and shall be used in conjunction with applicable rules or laws. It does not replace applicable rules or laws, and if it conflicts with these rules or laws, the rules or laws shall control. Pursuant to IC 13-14-1-11.5, this NPD will be available for public inspection for at least forty-five (45) days prior to presentation to the appropriate State Environmental Board, and may be put into effect by IDEM thirty (30) days afterward. If the NPD is presented to more than one board, it will be effective thirty (30) days after presentation to the last State Environmental Board. IDEM also will submit the NPD to the Indiana Register for publication. INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT Acknowledgements The Department of Environmental Management (IDEM) - Office of Land Quality would like to thank the following organizations and individuals who contributed either directly or indirectly to the development of the Remediation Closure Guide Nonrule Policy Document. Technical Workgroups Background Jia Guo, URS; Brian Magee, ARCADIS U.S., Inc.; Ray Milejczak, Seabreeze Technologies; Steve Schubring, AECOM Closure Tables Lisa Bradley, AECOM; Robinan Gentry, ENVIRON; Melissa Hamer-Bailey, Enviro-Assist Plume Stability John Mundell, Mundell & Associates; Joe Ricker, Premier Environmental; Ron St.
    [Show full text]
  • A Thesis Entitled Development of Novel Magnesium Phosphate Bone
    A Thesis entitled Development of Novel Magnesium Phosphate Bone Cement by Niloufar Rostami Submitted to the Graduate Faculty as partial fulfillment of the requirements for the Master of Science Degree in Bioengineering ________________________________________ Dr. Sarit B. Bhaduri, Committee Chair ________________________________________ Dr. Vijay K. Goel, Committee Member ________________________________________ Dr. Arunan Nadarajah, Committee Member ________________________________________ Dr. Mehdi Pourazady, Committee Member ________________________________________ Dr. Patricia R. Komuniecki, Dean College of Graduate Studies The University of Toledo December 2014 Copyright 2014, Niloufar Rostami This document is copyrighted material. Under copyright law, no parts of this document may be reproduced without the expressed permission of the author. An Abstract of Development of Novel Magnesium Phosphate Bone Cement by Niloufar Rostami Submitted to the Graduate Faculty as partial fulfillment of the requirements for the Master of Science Degree in Bioengineering The University of Toledo December 2014 This study aims to develop a novel magnesium phosphate based injectable cement for orthopedic applications. Magnesium phosphate cements (MPC) provide more favorable clinical performances including shorter setting time, and higher resorption rates and strength, as compared to the commonly used calcium phosphate cements. These features make magnesium cements great potential candidates for orthopedic and dental applications. In this study, the magnesium phosphate cement is prepared using a microwave assisted precipitation process. An experimental study is conducted to evaluate developed phases, setting times, injectability, and mechanical strength of the prepared cement. X-ray diffraction and SEM techniques are used to characterize the structure of powders with or without physiological conditions. Physiological conditions are simulated by soaking MPC pellets in Simulated Body Fluid (SBF).
    [Show full text]
  • Safety Assessment of Phosphoric Acid and Simple Salts As Used in Cosmetics
    Safety Assessment of Phosphoric Acid and Simple Salts as Used in Cosmetics Status: Tentative Report for Public Comment Release Date: April 12, 2016 Panel Date: June 6-7, 2016 All interested persons are provided 60 days from the above date to comment on this safety assessment and to identify additional published data that should be included or provide unpublished data which can be made public and included. Information may be submitted without identifying the source or the trade name of the cosmetic product containing the ingredient. All unpublished data submitted to CIR will be discussed in open meetings, will be available at the CIR office for review by any interested party and may be cited in a peer-reviewed scientific journal. Please submit data, comments, or requests to the CIR Director, Dr. Lillian J. Gill. The 2016 Cosmetic Ingredient Review Expert Panel members are: Chair, Wilma F. Bergfeld, M.D., F.A.C.P.; Donald V. Belsito, M.D.; Ronald A. Hill, Ph.D.; Curtis D. Klaassen, Ph.D.; Daniel C. Liebler, Ph.D.; James G. Marks, Jr., M.D.; Ronald C. Shank, Ph.D.; Thomas J. Slaga, Ph.D.; and Paul W. Snyder, D.V.M., Ph.D. The CIR Director is Lillian J. Gill, D.P.A. This report was prepared by Wilbur Johnson, Jr., M.S., Senior Scientific Analyst, Ivan Boyer, Ph.D., Toxicologist, and Bart Heldreth, Ph.D., Chemist. © Cosmetic Ingredient Review 1620 L STREET, NW, SUITE 1200 ◊ WASHINGTON, DC 20036-4702 ◊ PH 202.331.0651 ◊ FAX 202.331.0088 ◊ [email protected] INTRODUCTION The safety of the following 31 ingredients and their salts as used
    [Show full text]
  • A Process for the Manufacture of Highly Pure Trimagnesium
    Patentamt 0113153 JEuropâischesEuropean Patent Office ® Publication number: B1R1 — Officerit*: — européen„.... a — des*j — brevetsi ® EUROPEAN PATENT SPECIFICATION © Date of publication of patent spécification: 18.03.87 © Int. Cl.4: C01 B 25/34 (H) Application number: 83201865.9 ® Date offiling: 29.12.83 (H) A processforthe manufacture of highly pure trimagnesium phosphate octahydrate. (§) Priority: 30.12.82 US 454395 (73) Proprietor: STAUFFER CHEMICAL COMPANY Westport Connecticut 06880 (US) ® Date of publication of application: 11.07.84 Bulletin 84/28 @ Inventor: Sherif, Fawzy Gamaleldin 2 Babcock Court Stony Point, NY. 10980 (US) Publication of the grant of the patent: 18.03.87 Bulletin 87/12 @ Représentative: Urbanus, Henricus Maria, Ir. et al (§ï) Designated Contracting States: c/o Vereenigde Octrooibureaux Nieuwe BEDEFRGBITNLSE Parklaan 107 NL-2587 BP 's-Gravenhage (NL) (§) Références cited: CHEMICAL ABSTRACTS, vol. 71, no. 24, 15th December 1969, page 138, no. 114771y, Columbus, Ohio, USA CÛ m Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall û. be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been ui paid. (Art. 99(1 ) European patent convention). Courier Press, Leamington Spa, England. Background of the invention Field of the invention The invention relates to a process for the production of tertiary magnesium phosphate octahydrate and in particular to a process for the production of highly pure crystalline tertiary magnesium phosphate octahydrate.
    [Show full text]
  • WEDA-2 Abschlussbericht
    Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) mbH Werkzeuge und Daten für die geochemische Modellierung Kurztitel: WEDA 2 Tina Scharge Andrés G. Muñoz Helge C. Moog November 2012 Auftrags-Nr.: 02 C 1628 Revision 0 Anmerkung: Dieser Bericht ist von der GRS im Auftrag der/des BMBF im Rahmen des Vorhabens 02 C 1628 erstellt worden. Der Auftraggeber behält sich alle Rechte vor. Insbesondere darf dieser Bericht nur mit seiner Zustimmung zitiert, ganz oder teil- weise vervielfältigt bzw. Dritten zu- gänglich gemacht werden. Der Bericht gibt die Auffassung und Meinung des Auftragnehmers wie- der und muss nicht mit der Meinung des Auftraggebers übereinstimmen. GRS – A – 3689 Keywords Thermodynamic Modeling, Thermodynamic Data, Solubility, Vapor Pressure, Phos- phate, Isopiestic measurement, Pitzer, Electrolyte-Thermodynamics, Solubility Con- stant, Oceanic System, Brine Solution Table of contents 1 Introduction .............................................................................................. 1 2 Databank .................................................................................................. 3 2.1 Corrections and adaptions ......................................................................... 3 2.2 Upgrade of THEREDA for the storage of data related to surface complexation modelling ............................................................................. 3 2.2.1 New types of phase constituents ............................................................... 4 2.2.2 Elemental Composition of SurfaceSites ....................................................
    [Show full text]