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    Archived pages: 497 . Archive date: 2013-12.

  • Title: Krieg & Fischer Ingenieure GmbH: Planning and Construction of Biogas plants
    Descriptive info: .. Planning & Construction of.. Biogas Plants.. - worldwide -.. Krieg & Fischer Ingenieure GmbH.. Bertha-von-Suttner-Strasse 9.. D-37085 Goettingen.. Germany.. Tel.. : +49 (0)551 - 90 03 63 - 0.. Fax: +49.. (0)551 - 90 03 63 - 29.. Fischer@KriegFischer.. de.. SVK Biogas.. Verband dt.. Gerichts-.. Sachverständiger e.. V.. member of.. Our Partners:.. >.. zur deutschen Version..

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  • Title: Krieg & Fischer Ingenieure GmbH: Planung und Konstruktion von Biogasanlagen weltweit
    Descriptive info: Planung & Konstruktion.. von Biogasanlagen.. - weltweit -.. Krieg Fischer Ingenieure GmbH.. D-37085 Göttingen.. : +49 (0)551.. - 90 03 63 - 0.. Fax: +49 (0)551 - 90 03 63 - 29.. Mitglied im.. Unsere Partner:.. Sachverständiger..

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  • Title: Basics: Krieg & Fischer Ingenieure GmbH
    Descriptive info: Basics About Biogas Plants.. At present there is a boom in biogas plants in Germany.. With this technology one obtains so-called biogas from organics.. Biogas is renewable energy.. It can be used in gas engines to produce heat and electricity.. The following report provides an overview of the development and present status of biogas plants in Germany.. 1.. A short retrospective survey.. 2.. What is Biogas ?.. 3.. The situation in Germany.. Directly after World War II a few biogas plants had been constructed and were in operation on some German farms.. The reason at that time was a shortage of energy: fuel oil and natural gas were (nearly) unavailable, biogas could be obtained easily and comparatively cheaply through digestion of cattle- and pig-manure by the farmers on themselves.. Those first German biogas plants vanished in the fifties.. Fuel oil was cheap and available anywhere at any time.. Again, after the two oil crises in the seventies there were investigations of the feasability of biogas utilisation - this time conducted by some home-mechanics.. This second wave soon disappeared, too.. Only in the mid-eighties did some people start to work on biogas plants seriously again.. This third boom has continued vigorously to the present.. In Germany a milestone in the development of biogas plants was so-called Electricity Input Law ("Stromeinspeisegesetz") of 1992.. This law garanteed fixed rates to all the producers of renewable energy for each electrical kWh delivered into the public electrical grid.. This law not only included biogas plants but  ...   oxygen.. Different kinds of microorganisms metabolize the carbon of organic substrate under anaerobic conditions.. This process - called digestion or anaerobic fermentation - follows a food chain.. For example, if manure is treated in this manner, digested manure is obtained as a final product with much less odour than the fresh manure had previously.. In addition, this digested manure has got a neutral pH-value and no further caustic action when applied to plants.. After digestion nitrogen is mainly not organically bound any more but is in form of ammonia (NH.. Therefore, it can be assimilated directly by the plant.. The farmer gets a good, simple and cheap method for fertilizing.. He can dispense with expensive mineral fertilizer.. In the meantime there are about 600 biogas plants in operation in Germany.. Those are mainly agricultural, farm-scale biogas plants, the remainder are large-scale central Cofermentation plants and industrial plants for digestion of biowaste and/or kitchen waste.. Most of these plants were constructed with help of experienced advisers in self-construction by the owners themselves.. As a result, costs could be reduced greatly.. In the following chapter some of our references are described.. All of these biogas plants have been realised within the past few years.. The biogas plants described have different characteristics with regard to input substrate, technical construction and intention for the operator.. Plant Types.. Description of a typical farm-scale biogas plant.. Description of a typical cofermentation biogas plant.. Description of a typical biowaste/kitchen waste digestion plant.. home.. Krieg Fischer Ingenieure GmbH.. , 2001..

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  • Title: Contact: Krieg & Fischer Ingenieure GmbH
    Descriptive info: Contact:.. Torsten Fischer.. Bertha-von-Suttner-Strasse 9.. : +49 551 90 03 63 - 0.. Fax: +49 551 90 03 63 - 29.. @:.. Managing director (Geschäftsführer): Torsten Fischer.. HR B: 3137, District court (Amtsgericht) Göttingen.. Value added tax ID (Umsatzsteuer ID): 203789968.. Professional indemnity insurance for architects and engineers.. HDI Gerling, Hanover, Germany.. The insurance includes losses occurring world wide.. Torsten Fischer is accredited by of the Chamber of Engineers of Germany as expert witness in the field of biogas.. Torsten Fischer's services cover all expert opinions in  ...   expand and update it.. However, we cannot accept responsibility for errors, omissions or possible obsolescence.. In compliance with the court ruling, we expressly disclaim responsibility for any page content of all our home page links referring to the servers of other companies or private persons.. Your inquiry:.. Please fill in at least all those fields within the following form which are marked by an asterix (*).. *name.. first name.. *company.. *address.. country.. *zip-code.. *city.. phone.. fax.. e-mail.. http://.. WWW (URL).. Please send me / us:.. Reference list.. comment..

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  • Title: Description of a Cofermentation Biogas Plant: Krieg & Fischer Ingenieure GmbH
    Descriptive info: [.. plant types.. ] [.. project overview.. worldwide.. ].. Description of a Cofermentation Biogas Plant.. To improve economy of biogas plants some owners decide not to digest manure alone but to take other organic substances - so-called coferments - as well.. Typical coferments are fats, market wastes, spice residues, residues from food industry and many similar substances.. The operator of the cofermentation biogas plant increases his earnings in two ways: first, just by taking the coferments from the person who wants to dispose them and second, through higher biogas production.. Cofermentation biogas plants are generally (much) larger then farm-scale biogas plants.. Sometimes they still conform to the agricultural standards but most often to the industrial ones.. In Germany many large-scale cofermentation biogas plants have been constructed at a location central to several (large) farms.. All these surrounding farms deliver their manure to the plant.. Additionally coferments are delivered.. The standard ratio is about 3:1 to 2:1 for manure and coferments.. Agricultural standard cofermentation biogas plant.. The manure from all the surrounding farms is delivered by trucks or pumped to the cofermentation biogas plant.. The coferments are delivered by truck.. These trucks are unloaded in sumps which are normally closed to reduce odour emissions and opened only for adding the coferments.. For further reduction of odours sometimes all deliveries are made within a closed hall.. At first the coferments are ground, hygienized and mixed with manure.. Hygienisation is most often performed at 70° C for one hour with a maximum particle size of  ...   desulfurisation and so on.. Everything is controlled by a gas system control unit.. Digested manure is pumped into a standard manure storage tank.. An ever-increasing number of these tanks are covered with a roof to collect as much biogas as possible.. Although the gas production inside manure storage tank is not large, it is worthwhile to collect it.. Some of the roof incorporate biogas storage membranes.. All large-scale cofermentation biogas plants are controlled by an overall process control system.. There are many devices for measurement and safety purposes.. At night everything is run automatically, during the day there are operators on site - especially for repair and maintanance reasons and for taking the coferments and manure.. Large-scale cofermentation biogas plants are constructed for one reason only: to make a profit.. Therefore, the plant must operate day and night.. The investment costs may be as high as several million Euros.. Depending on the input substrates the pretreatment has to be engineered and constructed.. Indeed, depending on the input substrate and the pretreatment, the hydraulic retention time may vary.. This has direct impact on the digester volume.. Therefore, a lot of expert information is needed to construct such a large-scale cofermentation biogas plant.. Krieg & Fischer offers this knowhow.. Please take a look at some Krieg & Fischer cofermentation biogas plant references.. im BRAHM Cofermentation Biogas Plant (agricultural standard).. detailed description.. BÖCKERMANN Cofermentation Biogas Plant (agricultural standard).. KRAFT Cofermentation Biogas Plant (agricultural standard).. GROEDEN Cofermentation Biogas Plant (industrial standard).. BARZ Cofermentation Biogas Plant (agricultural standard)..

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  • Title: Description of a Digestion Plant: Krieg & Fischer Ingenieure GmbH
    Descriptive info: Description of a Digestion Plant.. cofermentation biogas plant references.. The situation in Germany - a little bit of history and explanation.. Many years ago people realised that native-organic waste dumped on landfills is responsible for the majority of all the methane emissions from landfills.. Together with all the well-known emissions to the groundwater and into the air, landfills also make a contribution to the greenhouse effect, too.. Incineration of native-organics is not supposed to be an intelligent solution because of their high water content.. Therefore, as early as the seventies, people tried to remove all native-organics from the waste and compost it.. From a technical point of view there has been no big problem.. But detailed investigations demonstrated that there were large quantities of heavy metals within compost produced this way.. As a result of this problem the compost produced got a bad image.. There was no chance to sell it either in landscape-gardening or in gardening or privately.. Somewhere in the mid-eighties first municipalities in Germany introduced a special bin for collection of so-called biowaste in each individual household.. Biowaste is a mixture of garden and kitchen waste and was first collected for composting.. Although this path proved to be quite stony, it could be shown that this was the most senseful and best way.. Meanwhile in most municipalities so called "bio-bins" are standard operating procedure in Germany.. Parallel to the invention of bio-bins the first composting plants had to be engineered and constructed.. It began with simple windrow composting.. Later on these old plants gradually became more automated.. Still later on, these plants were enclosed to avoid, or more exactly, to minimize odour emissions.. Nowadays enclosed composting plants, more and more working automated and on a high technical level are state of the art.. But only at the beginning of the nineties was digestion of biowaste initiated.. Similar to developmental history of composting plants, the path to reliable and efficient digestion plants has been long and stony.. Around the mid-nineties comparison of composting and digestion plants showed an equal development level.. At this time it could be demonstrated that housed and automated composting plants and digestion plants with an identical throughput have similar investment costs.. The difference is that operation of digestion plants is cheaper - due to the production of electricity and heat.. Again the Electricity Input Law ("Stromeinspeisegesetz") was very valuable for the breakthrough.. Comparison: Digestion and Composting.. Today composting and digestion plants are presumed to be equal in their technical level and costs in Germany.. Rural municipalities which tend to have more garden waste inside their bio-bins prefer composting plants; cities that tend to have more kitchen waste inside the bio-bin prefer digestion plants.. Even today biogas technology is being improved day by day.. But the basic problems have been solved.. If there are still many more composting plants than digestion plants in Germany, the only reason for this is that composting started around 1985 and digestion about 10 years later.. And there are some cities now that complain about their composting plant.. Large-scale industrial digestion plants are used for biowaste and kitchen waste digestion.. Biowaste is collected in special bins in every single household in  ...   added to the biogas from the digester or to a biofilter for odour treatment before being emitted to the environment.. After hydrolisation is finished the substrate is pumped to the digester.. In it all the biogas production takes place.. The retention time depends on the substrate, the temperature and the intention of the operator.. As there are tendencies for the substrate to develop swimming and sedimentation layers, one of the most important tasks of the process technique is to avoid exactly this.. Complete mixing is abolutely necessary.. Tanks are mainly coated steel tanks; the standard is an industrial one.. The produced biogas is treated in a manner very similar to farm-scale and cofermentation biogas plants.. Gas engines and diesel gas engines are in operation.. But in most cases gas engines are used.. Large-scale cofermentation biogas plants have large gas holders and emergency flares in case the engine(s) is (are) not in operation and biogas has to be burnt.. The gas system may include a blower, condensate trap, desulphurisation unit and so on.. The digested substrate is dewatered.. The compost is either spread onto the fields for agricultural use or composted (cured).. After this standard composting people can buy high quality compost for their own use or the compost is used in nurseries, gardening, viniculture and landscape-gardening.. After dewatering the liquid phase is pumped to the beginning of the process and recycled for slurrying of the dry input substrate.. This is done to avoid spoiling fresh water all the time.. Mechanically it is fairly simple but there are several microbiological problems.. As there are lots of dissolved salts within the liquid phase high concentrations may develop there after several cycles.. This may hamper the growth of microorganisms - depending on the input substrate.. All the large-scale digestion plants are controlled by an overall process controll system.. There are lots of devices for measurement and safety reasons.. At night everything is run automatically; during day there are operators on site - especially for pretreatment, repair and maintanance reasons and for accepting the biowaste and kitchen waste.. Large-scale digestion plants are constructed for one reason only: to make a profit.. Therefore the plant must operate day and night.. The investment costs may be up to several million Euros.. Depending on the input substrate, the pretreatment aggregates have to be engineered and constructed.. The hydraulic retention time may vary as a function of the input substrate and the pretreatment.. This has a direct impact on the digester volume.. Therefore a great deal of knowhow is needed to construct a large-scale digestion plant.. Biowaste digestion is not simple.. After many years of engineering such kinds of plants Krieg & Fischer is able to offer competent knowhow.. Kitchen waste digestion is even more difficult.. Souring, difficult two-stage processes, high nitrogen contents and much more are matters for discussion here.. Krieg & Fischer not only engineered several biogas plants for cofermentation of kitchen waste but have also engineered even most difficult of all thermophilic kitchen waste digestion plants.. Please take a look at some Krieg & Fischer digestion plant references.. BLUEMEL Digestion Plant (industrial standard).. TU HAMBURG-HARBURG Digestion Plant (pilot plant, industrial standard).. RoRo-ENERGIE Digestion Plant (agricultural standard)..

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  • Title: Description of a Farm-Scale Biogas Plant: Krieg & Fischer Ingenieure GmbH
    Descriptive info: Description of a Farm-Scale Biogas Plant.. The principle layout of a farm-scale agricultural biogas plant is fairly simple.. Manure is collected in a sump nearby the digester.. From this sump the digester is feeded semi-continuously by a pump.. The digester itself is a gas-tight completely sealed tank out of steel or concrete.. It is insulated because there must be a fixed optimal temperature inside it for the microorganisms.. This temperature can be either mesophilic with about 35° C or thermophilic with about 55° C.. Inside the digester there is an agitator.. This agitator is responsible for complete mixing of digester's contents.. The operator must ensure that there is no possibility for the development of swimming-layers and/or sedimentation.. Additionally, the microorganisms must be supplied with all necessary nutrients.. Fresh manure has to be fed to the digester several times a day, in small quantities.. The average hydraulic retention time of the manure inside the digester is - depending on the substrate - between 20 and 40 days.. During this time the organic substances in the manure are metabolized by the microorganisms.. There are two different outputs: biogas and digested substrate.. The latter is stored in a standard manure storage tank.. In Germany it is most common to use it as a  ...   electricity can be sold to the nearest public utility company - according to so-called Renewable Energy Law ("Erneuerbare Energien Gesetz").. This law garantees payment of 0,20 DM/kWh in Germany.. Especially in such situations where there is no (or few) consumer on the farm that need electricity, the farmer earns money by selling the electricity from renewable energy biogas'.. The heat produced can be used for heating the stables, the farm-house, drying of grain and many other useful purposes.. In general, about 10 to 30% of the electricity and heat produced have to be used for direct consumption by the biogas plant itself.. Surplus electricity and heat are used for the financing of the biogas plant.. Normal times for writing-off are 4 to 8 years.. Of course, there are other ways to utilise biogas.. For example, all the biogas can be used for heat production: steam or hot water.. This is attractive if there is need for large amounts of steam.. Or the heat can be used to power refrigeration - this can be employed, for example, for cooling stored fresh milk in a dairy.. Please take a look at some Krieg & Fischer farm-scale biogas plant references.. FAKLER Biogas Plant.. BIOENERGIE HEHLEN Biogas Plant.. HOLLANDHOF Biogas Plant.. KÖRBER-HARRIEHAUSEN Biogas Plant..

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  • Title: Krieg und Fischer Ingenieure GmbH
    Descriptive info: Digestion has several advantages compared to composting.. Composting requires electricity, whereas digestion delivers surplus electricity.. Liquid wastes like manure and fats are not appropriate for composting.. They are ideally used for digestion.. Comparatively wet organic wastes, for example kitchen waste or slaughterhouse waste can be digested relatively well.. But especially these wastes are only compostable with the addition of large quantities of air = energy - if at all.. Very important are odour reductions through digestion..

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  • Title: Profile: Krieg & Fischer Ingenieure GmbH
    Descriptive info: Krieg & Fischer Ingenieure GmbH -.. Company Profile.. Employees.. Krieg & Fischer is an engineering bureau.. Krieg & Fischer is an expert biogas bureau.. Krieg & Fischer Ingenieure was founded January, 1st, 1999 by Andy Krieg and Torsten Fischer.. Our service spectrum includes provision of all types of service in the field of digestion- and biogas technologies.. Andreas Krieg.. planned and constructed his first biogas plant in 1986.. In the subsequent years he worked for plant construction companies and engineering consulting offices.. The focus of his activities has been agriculture engineering applications.. Torsten Fischer.. has been active in the field of biogas since 1993.. In this period he worked for two plant construction companies.. The main aspects of his work were industrial biowaste digestion and large-scale cofermentation biogas plants.. Krieg & Fischer Ingenieure therefore has extensive experience in the planning and construction of biogas and digestion plants.. Our engineering competence covers one- and two-stage, mesophilic and thermophilic, wet and dry fermentation biogas plants.. In these plants manure, dung, biowaste, kitchen waste, fats, organic sludges and many other forms of organic wastes are treated.. Krieg & Fischer Ingenieure provides knowhow on the field of biogas technology.. We understand ourselves as a service provider whose competence covers the entire spectrum of biogas technology.. This can be either farm-scale biogas plants or sophisticated industrial biowaste, kitchen waste and residual waste fermentation processes.. We provide expert opinions and conduct studies (technical, economical), perform preliminary planning, draft layouts, conduct detailed and implementation planning, carry out cost assessment and tender work.. After completion of the required engineering work,  ...   +49 (0)172 - 76 88 891.. Klatt@KriegFischer.. Vadim Lichtner.. phone: +49 - (0)551 - 90 03 63 - 13.. Lichtner@KriegFischer.. Andrzej Krupka.. phone: +49 - (0)551 - 90 03 63 - 14.. mobile: +49 - (0)173 - 26 49 732.. Krupka@KriegFischer.. Melanie Legero.. phone: +49 - (0)551 - 90 03 63 - 17.. mobile: +49 - (0)172 - 56 88 473.. Legero@KriegFischer.. Daniel Liebing.. phone: +49 - (0)551 - 90 03 63 -20.. mobile: +49 - (0)172 - 15 82 904.. Liebing@KriegFischer.. Sebastian Steffens.. phone: +49 (0)551 - 90 03 63 - 102.. mobile: +49 (0)173 - 28 46 069.. Steffens@KriegFischer.. Michael Rohde.. phone: +49 - (0)551 - 90 03 63 -19.. mobile: +49 - (0)172 - 52 86 431.. Rohde@KriegFischer.. Raphael Thies.. phone: +49 - (0)551 - 90 03 63 - 21.. mobile: +49 - (0)152 - 22 70 96 47.. Thies@KriegFischer.. Dr.. Katharina Backes.. phone: +49 - (0)551 - 90 03 63 -28.. Backes@KriegFischer.. Martina Schreiber.. phone: +49 - (0)551 - 90 03 63 - 23.. Schreiber@KriegFischer.. Gabriele Keydel.. phone: +49 - (0)551 - 90 03 63 - 18.. mobile: +49 - (0)172 - 57 94 148.. Keydel@KriegFischer.. Stefan Hohlstamm.. phone: +49 (0)551 - 90 03 63 - 106.. mobile: +49 (0)172 - 53 60 910.. Hohlstamm@KriegFischer.. Jose Herrera.. phone: +49 (0)551 - 90 03 63 - 107.. mobile: +49 (0)172 - 99 07 939.. Herrera@KriegFischer.. Stephanie Feulner.. phone: +49 (0)551 - 90 03 63 - 0.. Feulner@KriegFischer.. Bernd Nolte.. phone: +49 (0)551 - 90 03 63 - 104.. mobile: +49 (0) 172 - 23 83 421.. Nolte@KriegFischer.. , 2004..

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  • Title: Projects 1999: Krieg & Fischer Ingenieure GmbH
    Descriptive info: ] [project overview (.. 1999.. ) (.. 2000.. 2001.. 2002.. 2003.. 2004.. 2005.. 2006.. 2007.. )] [.. Project Overview.. (Extract).. 1999.. Engineering of a thermophilic, two-stage kitchen waste digestion plant for a.. German.. plant construction company: calculation, flow-sheet, measurement devices, dewatering of digestion stage.. Optimisation of a large-scale.. biowaste digestion plant: controlling on site, giving an expert opinion, proposals for improvement, advisory.. Preplanning and Engineering of methanisation stage for a biogas plant for digestion of waste water and waste of a factory for starch production (potato-starch) in.. Germany.. Cost assessment, preparation of tenders, technical calculation of tanks, mixers, pumps, tubes, electro-, measurement & control technology, etc.. Studies on the digestion of manure, dung, grass, etc.. for several biogas plants in.. Austria.. and.. Italy.. incl.. cost  ...   bureau incl.. development of process technique and cost assessment.. Calculation, conception, pre-engineering, cost assessment, preparation of quotation for a large-scale biogas plant (pig manure) in.. Spain.. for a German plant construction company.. Calculation, conception, pre-engineering, cost assessment, preparation of quotation for a large-scale biogas plant (manure, cofermentation products) in.. Detailed plannings, preparation of tender documents, construction supervision of an agricultural biogas plant in.. for a consulting company.. Study for total treatment of manure and cofermentation products up to drinking water quality for a.. plant construction company.. Expert study on the effects of digested manure and kitchen waste applied on agricultural fields.. Several consulting activities for plant construction companies for engineering and realisation of biogas plants, i.. in process technique, heat exchangers, pumps, etc.. , 2003..

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  • Title: Publications: Krieg & Fischer Ingenieure GmbH
    Descriptive info: In the past 15 years.. have published a number of papers and given numerous lectures.. Here is a list of our publications.. Most of these are in German.. To help you understand the topics we have translated the titles.. If you are interested in any of these we can send them to you or give you information as to where they were published.. In general this list can give you an idea what we have done in the past 15 years.. KAISER, K.. und DR.. K.. BACKES, 2009:.. Optimizing Biogas Yields With Substrate Selection.. in:.. BioCycle : Advancing Composting, Organics Recycling & Renewable Energy; June, 2009.. FISCHER, T.. und Dr.. Industrial Big Biogas Plant Design and Construction in North America.. Canadian Farm and Food Biogas Conference, London, Ontario March 10, 2009.. und A.. KRIEG; 2009:.. Vorlesung Biogas.. an der: Fachhochschule Höxter, Fachbereich Abfallwirtschaft.. Teil 1: Biogasanlagen - eine Einführung (November 24th, 2008).. Teil 2: Biogasanlagen - Genehmigung, Inputstoffe, Verfahrenstechnik.. (.. December 4th, 2008.. Teil 3: Biogasanlagen - Technik - Fermenter, Feststoffeintragstechnik, Gasaufbereitung und -einspeisung, BHKW (December 11th, 2008).. Teil 4: Biogasanlagen - Sicherheitstechnik, Abnahmen (January 15th, 2009).. Teil 1:.. Teil 2:.. Teil 3:.. Teil 4:.. KRIEG; 2008:.. Biogas for Canada: Learning Lessons from Germany?.. Konferenz und Fachausstellung:" Energy, Biogasproducts and Byproducts from Farm and Food Sectors" Growing the Margin, April 2-5, 2008, London Ontario www.. gtmconf.. ca.. BACKES; 2008:.. Description and Comparison of Technical Details of Biogas Plants Technical Details of Tanks.. Co-Digestion of Manure and Food Wastes at Inland Empire California.. "Anaerobic Treatment of High-Strength Industrial Waste" Marquette Universtiy, September 18-19, 2008, Milwaukee, WI.. KRIEG, A.. und T.. FISCHER; 2008:.. Aktueller Status und Marktperspektiven der Biogasadditive.. "Forum Biogasadditive 2008" der LUFA NordWest und APMA Service GmbH, "Markttransparenz und Perspektiven", Mainz 27-28.. Mai 2008, www.. optimus-biogas.. ; BACKES, K.. KRIEG; 2007:.. Biogas production from gut contents and low value offal.. in:.. Ninth International Symposium "Rendering - a flexible resource" , Cairns/North Queensland, Australia 18-20 July 2007, p.. 97-103.. Sustainable Management of Waste by anaerobic Digestion.. AMERICANA - "International Enviromental Technology Trade Show and Congress - 2007", Montreal/Canada, 20-22.. März 2007.. Expérience allemande: politique et appresentissage technologique.. CRAAQ Conference, Montreal/Canada 26.. Januar 2007.. KRIEG; 2006:.. Erfahrungen aus der Planung und dem Bau großer Biogasanlagen auf der Basis Nachwachsender Rohstoffe.. (Experience of planning and construction big size biogas plants based on renewable primary products).. ENBIO-Tagung, 5.. Mai 2006, Kassel.. Monovergärung von Silage mit Schwerpunkt Gras - Möglichkeiten und Praxiserfahrung.. (Mono fermentation of grass silage - possibilities and experience).. Leipziger Fachgespräche 2005/2006 des Inst.. F.. Energetik und Umwelt GmbH, 8.. März 2006, Leipzig.. KRIEG,A.. FISCHER; 2006:.. Aufbaukurs Biogas - Anlagensysteme und Verfahren.. (Learner course biogas - systems engineering and operation).. Landwirtschaftliches Zentrum Eichhof, 15.. März 2006, Bad Hersfeld.. Verfahrenstechniken zum Bau von Biogasanlagen ohne Gülle - bisherige Erfahrungen.. (Systems engineering of construction biogas plant without manure - previous experience).. Landratsamt Biberach: "Biogasanlagen ohne Gülle betreiben" 21.. Februar 2006, Biberach/Riss.. Konzeptvorschlag - Biogasanlage Laupheim.. (Suggestions of conception for a biogas plant in Laupheim).. 15.. Februar 2006, Laupheim.. und KRIEG, A.. ; 2005:.. Mono-fermentation of Energy Crops - Experience from the Biogas Plant in Obernjesa.. VDI-Berichte Nr.. 1872, 2005, S.. 153-163.. KRIEG; 2005:.. Renewable primary products in biogas plant without manure - does it work?.. 14.. Jahrestagung "Biogas und Bioenergie in der Landwirtschaft" der IBBK, 30.. 11 und 01.. 12.. 2005, Wolpertshausen.. Biogas aus Gras - Monofermentation von Energiepflanzen.. (Make biogas out of grass silage - mono fermentation of energy crop).. haneg-Tagung, 14.. April 2005, Bremen.. FISCHER; 2005:.. Anlagentechnik für die Biogasproduktion.. (Systems engineering of biogas production).. BB-Bio-Energietag, 25.. Januar 2005, Göttingen.. Innovative Lösungen für die Vergärung von Energiepflanzen.. (Innovative solutions of energy crop fermentation).. Fachtagung Biogas, 24.. Januar 2005, ICC Berlin.. D.. SZCZEPANIK, 2005:.. Produkcja i wykorzystanie biogazu w rolnictwie.. Czysta Energia 10/2005, p.. 36f (POLAND).. Monofermentation von Energiepflanzen - Erfahrungen von der Biogasanlage Obernjesa.. (Mono fermentation from energy crop experience from Bio Energy Farm Obernjesa).. ; 2004:.. Gas aus Gras - Biogasanlage Obernjesa.. (Gas from Gras - Bio Energy Farm Obernjesa).. 13.. Jahrestagung "Biogas und Bioenergie in der Landwirtschaft" am 2.. -4.. Dezember 2004.. und KÖRBER-HARRIEHAUSEN HANS-WALTER; 2004:.. Biogas aus Gras Bioenergiehof Obernjesa.. (Biogas from Gras - Bio Energy Farm Obernjesa).. Tagungsband, Biogas Konferenz Ganzheitliche Energieerzeugung aus NaWaRos , im Rahmen der Messe Energie + Natur, 26.. Juni  ...   Lehranstalten Triesdorf, Triesdorf, 19.. Mai 2000.. FISCHER; 1999,.. Verbesserung der Rentabilität von landwirtschaftlichen Betrieben durch die energetische Nutzung von Biogas.. (Improvement of economy of farms through energetic usage of biogas),.. Anwenderforum Energetische Nutzung von Pflanzenöl und Biogas, OTTI Technologie-Kolleg, Kloster Banz, 24.. November 1999.. KRIEG; 1999,.. Fehlervermeidung bei der Erzeugung von Biogasgülle.. (Avoiding mistakes during production of biogas manure),.. Biogasgülle - Management und Ausbringungstechnik, 6.. Biogastagung, Arge Biogas des Österreichischen Naturschutzbundes, Schlierbach, Österreich, 4.. ; 1998,.. Kleine Geschichte der Biogastechnik.. (Little History of Biogas Technology),.. Entsorgungspraxis 5/98, S.. 69-70.. ; 1997,.. Different systems and approaches to treat municipal solid waste - a state of the art assessment,.. The future of biogas in Europe, Proceedings.. Hrsg.. :.. Jens Bo Holm-Nielsen South Jutland University Centre.. Risskov: Biopress, S.. 21 - 29.. und F.. KLOPOTEK; 1997,.. Neue Wege in der Abfallverwertung - Das Rotenburger Modell-Zentrale Bioabfallaufbereitung mit dezentraler Verwertung in landwirtschaftlichen Biogasanlagen.. (New Ways for treating Waste - The Rotenburg-Modell - centralized Pretreatment of Biowaste plus decentralized Treatment in agricultural Biogas Plants),.. VDI Berichte, 1997, Seite 215 - 221.. und D.. GROHGANZ; 1997,.. Gekoppeltes Produkt.. (Coupled Product),.. Entsorga, Heft 4, April 1997, S.. 60 - 65.. ; 1997,.. Verwertung organischer Reststoffe in landwirtschaftlichen Biogasanlagen.. (Treatment of organic Residues in agricultural Biogas Plants),.. Biogas für Österreich.. Hrsg:.. Bundesministerium für Land- und Forstwirtschaft, Abt.. II/A4.. Horn: Druckerei Berger, S.. 67 - 82.. Verteilungsmodelle bei organischen Reststoffen für die Cofermentation und Bioabfallvergärung.. (Models for Distribution of organic Residues for Co-Fermentation and Digestion of Biowaste),.. Tagungsband 6.. Biogastagung Fachverband Biogas.. Kirchberg/J: Eigenverlag.. ; 1996,.. Stoffliche Verwertung und energetische Nutzung organischer Reststoffe mittels Anaerobtechnik in der Landwirtschaft.. (Treatment and energetic usage of organic residues in agriculture),.. Hohenheimer Biogas-Symposium I+II.. AK Kompostierung und Rezirkulierung an der Universität Hohenheim.. Stuttgart: Uni Druckerei Hohenheim, S.. 109 - 118.. PLOOG, M.. ; OGAL, T.. FISCHER; 1996,.. Einfluß der Meßmethodik auf pH-Wert, Leitfähigkeit und Redoxpotential.. (Influence of the method of measuring pH-value, Conductivity and Reduction/Oxidation-Potential),.. AbfallwirtschaftsJournal, 1.. /2.. 1996, S.. 25-28.. Co-Fermentation von organischen Reststoffen.. (Co-Fermentation of organic residues),.. Schulz, H.. : Biogas-Praxis.. Ökobuch-Verlag, Staufen i.. Br.. , S.. 125 - 139.. ; 1996,.. Das Rotenburger Konzept der dezentralen landwirtschaftlichen Bioabfallverwertung.. (The Rotenburg-concept of decentralized agricultural Treatment of Biowaste),.. Tagungsband 5.. ; 1995,.. Das ATF-Verfahren.. (The ATF-Process),.. Herstellerforum Bioabfall - Verfahren der Kompostierung und anaeroben Abfallbehandlung im Vergleich, Veröffentlichungen des Instituts für Abfallwirtschaft, Witzenhausen,.. M.. I.. Baeza-Verlag, S.. 290-298.. ; BRAUN, M.. ; EULER, H.. und B.. KLINGLER; 1995,.. Biogas-Studie Österreich.. (Biogas Study Austria),.. Akademie für Umwelt und Energie.. Wien: Norka-Verlag.. Anaerobe Trockenfermentation erzeugt Kompost und Biogas.. (Anaerobic Dry-Fermentation produces Compost and Biogas),.. bi-Umweltschutz 1/95, S.. 82-84.. Das ATF-Verfahren.. (The ATF-Process),.. ANS Band 30, 51.. Informationsgespräch in Baden-Baden im März 1995, S.. 371-377.. Aufbereitungs- und Fördertechnik in der Biogastechnik.. (Pretreatment and Conveying Techniques in Biogas Techniques),.. Tagungsband 4 Biogastagung des Fachverband Biogas.. , BRAUN, M.. und R.. BUGAR; 1995,.. Gras-Kraft.. (Gras-Power),.. Abschlussbericht des Forschungsprojektes Gras-Kraft, Förderkennzeichen FKV 0026901R4, Januar 1995.. , RILLING, N.. STEGMANN; 1994,.. Anaerobe Trockenfermentation - Das ATF-Verfahren.. (Anaerobic Dry-Fermentation - The ATF-Process),.. Manuskript zum Vortrag, Seminar: Einfälle statt Abfälle, Umgang mit betrieblichen, organischen Abfällen,.. Fresenius Akademie, Schloß Herten, 17.. Nov.. 1994.. STEGMANN; 1994,.. Das ATF-Verfahren der Technischen Universität Hamburg-Harburg.. (The ATF-Process of the Technical University of Hamburg-Harburg),.. Anaerobe Behandlung von festen und flüssigen Rückständen, Beiträge zu einer Veranstaltung des Sonderforschungsbereiches 238 der Deutschen Forschungsgemeinschaft in Zusammenarbeit mit der DECHEMA-Fachsektion Biotechnologie vom 2.. bis 4.. November 1994,.. DECHEMA Monographien, Vol.. 130, 1994, S.. 287-290.. Dem Bio-Abfall geht die Luft aus.. (No Air for Bio-Waste),.. Anaerobe Trockenfermentation organischer Abfälle, Chemie Umwelt Technik, S.. 62-64.. ; 1994,.. Biogas im Nährstoffkreislauf.. (Biogas within Nutrition Cycle),.. Tagungsband 3.. Biogastagung des Fachverband Biogas.. ; 1993,.. Verfahrenstechnik und Ökonomie bei der Cofermentation von Gülle und Altfett.. (Process Technology and Economy regarding Co-Fermentation of Manure and old Fat),.. Kosten landwirtschaftlicher Biogaserzeugung.. KTBL, Arbeitspapier 185.. Reinheim: Erwin Lokay, S.. 82 - 86.. Verfahrenstechnik und Ökonomie bei Biogas-Selbstbauanlagen.. (Process Technology and Economy of self-constructed Biogas Plants),.. 22 - 27.. Fermentation von Gülle zusammen mit sonstigen Reststoffen-Abfälle aus der Nahrungsmittelindustrie.. (Fermentation of Manure together with Residues from industrial Food Processing),.. Tagungsband 2.. SCHULZ, H.. MITTERLEITNER; 1992,.. Güllebehandlung in Biogasanlagen.. (Treatment of Manure in Biogas Plants),.. Neue Techniken zum umweltgerechten Einsatz von mineralischen und organischen Düngern.. H.. Pirkelmann, Landtechnik Weihenstephan, Landtechnik-Schrift Nr.. Freising: Bode-Druck, S.. 64 - 72..

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