scholarly journals Analysis of production tests in processing the mixture of solid and liquid biologically degradable wastes by anaerobic fermentation

2012 ◽  
Vol 60 (3) ◽  
pp. 19-24
Author(s):  
Jiří Fryč ◽  
Josef Los ◽  
Tomáš Lošák
Keyword(s):  
Food Processing ◽  
Anaerobic Fermentation ◽  
Energy Content ◽  
Biogas Production ◽  
Raw Materials ◽  
Liquid Waste ◽  
Input Material ◽  
Glycerine Water ◽  
Fermentation Technology ◽  
Suitable System

This study concerns the analysis of operating anaerobic fermentation systems of agricultural biogas station and implementing a suitable system enabling the use of a mixture of solid and liquid biowaste. The tests made use of liquid substrates commercially offered to biogas station operators. The study evaluates practical measurements at an agricultural biogas station in order to evaluate the biogas production from these substrates and the efficiency of transforming input material to usable energy. The use of such treated substrates for the anaerobic fermentation technology may have a substantial influence on the volume of dosed energy crops. The mixture of input substrates consisting of liquid cattle excrements, silage corn, solid and liquid waste from food processing, animal waste and glycerine water was experimentally validated. This mixture was compared with the operation using liquid cattle excrements and silage corn. It was concluded that the proposed composition of input raw materials makes it possible to increase the production of biogas and el. power. On the other hand, it was identified that the energy content of the input raw materials is not optimally transformed into usable energy. This is why the proposed mixture of input materials with biowaste is not recommended for use at the used proportion.

scholarly journals Operating tests analysis of liquid biologically degradable waste processing by anaerobic fermentation

2012 ◽  
Vol 60 (1) ◽  
pp. 39-44
Author(s):  
Jiří Fryč ◽  
Tomáš Vítěz ◽  
Tomáš Lošák
Keyword(s):  
Food Processing ◽  
Anaerobic Fermentation ◽  
Energy Content ◽  
Biogas Production ◽  
Raw Materials ◽  
Input Material ◽  
Glycerine Water ◽  
Food Processing Waste ◽  
Fermentation Technology ◽  
Suitable System

This study concerns the analysis of operating anaerobic fermentation systems of agricultural biogas station and implementing a suitable system enabling the use of liquid biowaste. Based on the comparison of the technological solutions and operating parameters of specific equipment a system enabling the utilisation of biowaste has been designed. The tests made use of liquid substrates commercially offered to biogas station operators. The study evaluates practical measurements at an agricultural biogas station in order to evaluate the biogas production from these substrates and the efficiency of transforming input material to usable energy. The use of such treated substrates for the anaerobic fermentation technology may have a substantial influence on the volume of dosed energy crops. The mixture of input substrates consisting of liquid cattle excrements, silage corn, liquid food-processing waste, animal waste and glycerine water was experimentally validated. This mixture was compared with the operation using liquid cattle excrements and silage corn. It was concluded that the proposed composition of input raw materials makes it possible to increase the production of biogas and el. power. On the other hand, it was identified that the energy content of the input raw materials is not optimally transformed into usable energy. Therefore, the proposed mixture of input materials with biowaste is not recommended for use.

scholarly journals Study of regime parameters of the fermenter in the production of biogas from animal liquid waste materials

2021 ◽  
Vol 286 ◽  
pp. 02010
Author(s):  
Penka Zlateva ◽  
Angel Terziev ◽  
Krastin Yordanov
Keyword(s):  
Anaerobic Fermentation ◽  
Biogas Production ◽  
Raw Materials ◽  
Organic Fertilizer ◽  
Liquid Waste ◽  
Ambient Air ◽  
Chicken Manure ◽  
Pig Manure ◽  
Materials Used ◽  
The Impact

The focus of the present study is a small biogas power plant for anaerobic fermentation of several types of animal waste raw materials used for biogas production. The impact of some of the characteristics of substances such as composition, temperature, humidity, and pH of the mixture in the bioreactor has been considered. The above is vital for optimizing the fermentation process, and also to improve the biogas production process. The plant is located in Northeastern Bulgaria and the raw liquid manure is supplied by several neighboring small farms. The annual quantities of raw waste are as follows: cow manure - 1252 t / a; chicken manure - 427 t / a and pig manure - 639 t / a. The manure is collected in a preliminary tank and then pumped to the bioreactor. The fermenter itself is a hermetically sealed and thermally insulated tank where constant temperature is maintained. It is equipped with a stirring system, which helps the mixing and homogenization of the substrate. The tests were performed during three charges of the installation. The fermentation takes approximately 23 up to 25 days. The experiments were performed during the summer and autumn seasons when the ambient air temperature varies from 28 to 45 °C. The biogas can be used as an energy carried as the obtained organic fertilizer is suitable for agriculture purposes.

scholarly journals International overview on waste to biofuel options with a focsu on waste potentials in Germany and funding incentives in the EC

2013 ◽  
Vol 14 (2) ◽  
pp. 183-191
Keyword(s):  
Anaerobic Fermentation ◽  
Biogas Production ◽  
Raw Materials ◽  
Ghg Emissions ◽  
Small Scale ◽  
Double Counting ◽  
Industrialized Countries ◽  
Fischer Tropsch ◽  
The Past ◽  
Ghg Reduction

Biofuels represent a possibility to reduce greenhouse gas (GHG) emissions within the transport sector. In this context the sustainability of biofuels, especially so called 1st generation biofuels led to controversial discussions in the past. Biofuels from waste and residues represent a well suited but quantitative limited alternative due to their sustainability. At an international level, different approaches for converting waste and residues into biofuels can be found. Developing countries in general use classic transesterification of waste fats to produce biodiesel. Technically advanced options such as pyrolysis, gasification, Fischer-Tropsch-Diesel, anaerobic fermentation and distillation, as well as biogas production coupled with biomethane upgrading, are mostly found in industrialized countries. Within this study, different waste to biofuel options are reviewed ranging from small scale to industrial scale and take into account used raw materials, technological application and (potential) GHG-reduction. Further the potential of several wastes and residues for gasification processes and synthesis of biofuels in Germany is described. Biofuel from waste offers promising funding incentives because of the “double counting” according to 2009/28/EC and the switch in mandatory blending from an amount based quota to a GHG-based blending quota in 2015.

scholarly journals Biogas composition depending on the type of plant biomass used

2011 ◽  
Vol 57 (No. 4) ◽  
pp. 137-143 ◽  
Author(s):  
M. Herout ◽  
J. Malaťák ◽  
L. Kučera ◽  
T. Dlabaja
Keyword(s):  
Hydrogen Sulphide ◽  
Fermentation Process ◽  
Plant Biomass ◽  
Anaerobic Fermentation ◽  
Biogas Production ◽  
Raw Materials ◽  
Biogas Plant ◽  
Raw Material ◽  
Maize Silage ◽  
High Concentrations

The aim of the work is to determine and analyse concentrations of individual biogas components according to the used raw materials based on plant biomass. The measurement is focused on biogas production depending on input raw materials like maize silage, grass haylage and rye grain. The total amount of plant biomass entering the fermenter during the measurement varies at around 40% w/w, the rest is liquid beef manure. The measured values are statistically evaluated and optimised for the subsequent effective operation of the biogas plant. A biogas plant operating on the principle of wet anaerobic fermentation process is used for the measurement. The biogas production takes place during the wet fermentation process in the mesophile operation at an average temperature of 40°C. The technology of the biogas plant is based on the principle of using two fermenters. It follows from the measured results that maize silage with liquid beef manure in the ratio of 40:60 can produce biogas with a high content of methane; this performance is not stable. At this concentration of input raw material, the formation of undesirable high concentrations of hydrogen sulphide occurs as well. It is shown from the results that the process of biogas production is stabilised by the addition of other components of plant biomass like grass haylage and rye grain and a limitation of the formation of hydrogen sulphide occurs. It follows from the results that the maize silage should form about 80% w/w from the total amount of the plant biomass used.

scholarly journals ENERGY SAVING OF MODULAR BUILDINGS WITH THE HELP OF BIOGAS TECHNOLOGIES

2021 ◽  
Vol 2021 (2) ◽  
pp. 82-94
Author(s):  
Vasyl Zhelykh ◽  
◽  
Yurij Furdas ◽  
Stepan Shapoval ◽  
Olena Savchenko ◽  
...  
Keyword(s):  
Anaerobic Fermentation ◽  
Biogas Production ◽  
Raw Materials ◽  
Heat Fluxes ◽  
Raw Material ◽  
Methane Formation ◽  
Land Resources ◽  
Heat Flows ◽  
Main Factors ◽  
Fallen Leaves

Ukraine has significant land resources for agriculture and is able to provide its population not only with food but also with raw materials for bioenergy. The article presents a graph of heat capacities and the distribution of heat flows in a bioreactor. The dependences for determining the heat fluxes of flat and cylindrical surfaces are presented. The article outlines the present state of utilization of fallen leaves of trees. The method of utilization by anaerobic fermentation is proposed. The design of bioreactors and the main factors influencing the methane formation process are considered. The methodology for calculating the biogas production process is presented. The productivity of the bioreactor has been determined, depending on the temperature of the raw material and the time of hydraulic resistance

scholarly journals Analysis of the composition and formation of biogas produced during the processing of biological waste by anaerobic digestion technologies

2010 ◽  
Vol 58 (5) ◽  
pp. 171-178 ◽  
Author(s):  
Lubomír Hnilica ◽  
Jiří Fryč ◽  
Bořivoj Groda
Keyword(s):  
Anaerobic Digestion ◽  
Anaerobic Fermentation ◽  
Biogas Production ◽  
Raw Materials ◽  
Energy Crops ◽  
Operational Parameters ◽  
Operation System ◽  
Data Set ◽  
Sufficient Energy ◽  
Biogas Plants

This work compares the operating system of anaerobic fermentation of agricultural biogas plants with realization using biowaste. It deals with the operation system of anaerobic fermentation of agricultural biogas plants and implement an appropriate system to enable the use of biowaste. Based on the comparison of technological solutions and operational parameters of specific sites has been designed to allow the system biowaste were made a practical experiment to verify the assumption of increased biogas production. In experiments used substrates, which are industrially produced from the available bio-wastes, treated and then provide to operator of biogas plants. The work was carried out practical measurements to verify the production of biogas from different substrates. Utilize of nominal electric power using biowaste amounted up to 97.66%. Processing of such modified substrates in anaerobic digestion technology can greatly affect the amount of energy crops. Benefit of waste is governed primarily by such projects, where is the problem of ensuring sufficient energy crops. The proposed composition of raw materials also allows the implementation of the existing ope­ra­tion of anaerobic digestion. Operational data on real operations demonstrate the real possibility of further development of the area and secondly the use of biogas plants as well as in the preparation of suitably prepared substrates for the operators. The entire data set underwent a complete statistical analysis. Differences between variants were statistically significant.

scholarly journals Socialization of Tofu Liquid Waste Management (Whey Tofu) Becomes Biogas as Alternative Energy Reserves in the Framework of Creating an Environmentally Friendly Industry

2020 ◽  
Vol 3 (2) ◽  
pp. 326
Author(s):  
Nely Ana Mufarida ◽  
Orisanto Darma Setiawan
Keyword(s):  
Waste Management ◽  
Community Service ◽  
Alternative Energy ◽  
Negative Impact ◽  
Biogas Production ◽  
Raw Materials ◽  
Liquid Waste ◽  
Environmentally Friendly ◽  
Added Value ◽  
Ecological Value

Arya Jaya is a trading business that is engaged in making tofu. UD. Arya Jaya began operations in 2003, by Mrs. Siti Aisyah. UD. Arya Jaya is in Bukkolan Village RT.01 RW.01 Paowan Village / Panarukan District Situbondo Regency East Java Province. To run this business, Mrs. Siti Aisyah was assisted by 12 workers.         At UD. Arya Jaya, so far the tofu wastewater has never been used and treated but has been discharged into the river. As a result, various cases of environmental pollution that make a negative impact on public health occur a lot.         Community service activities are also intended to train and foster communities around the tofu industry and tofu entrepreneurs so that they have knowledge about the utilization of tofu liquid waste and can improve skills around 75% to process tofu liquid waste into biogas in processing tofu liquid waste into biogas so it is expected With good management of the waste produced by the tofu making industry, it will add value to the product and be more environmentally friendly. In addition, the management of tofu wastewater in a waste to product manner can efficiently cost the costs, materials used, and energy to make new products from waste raw materials. Besides that, entrepreneurs know that they will no longer be difficult to deal with their waste.         Based on the situation analysis above, the PKM Team together with UD. Arya Jaya seeks to overcome the problem referred to as "The Socialization of Tofu Liquid Waste Management (Whey Tofu) Becoming Biogas As an Alternative Energy Reserve in the Framework of Creating an Environmentally Friendly Industry". The activity that will be carried out has very good prospects and is expected to provide information about the processing of tofu industrial wastewater using anaerobic biodigester technology for biogas production. For tofu industry entrepreneurs, the processing of various wastes can be converted into biogas into added value. By paying attention to environmental problems caused by the disposal of potentially polluting waste, the existence of anaerobic biodigester technology can provide economic and ecological value while reducing the potential for disposal. In addition, it can reduce the effects of pollution resulting in the greenhouse effect.         The final target and output are the publication of scientific articles in journals or proceedings in national community service seminars and newspaper article publications in national newspapers.  

scholarly journals Studi Pembuatan Biohidrogen dari Limbah Padat Blotong dan Limbah Cair Industri Gula Secara Fermentasi Anaerob

2018 ◽  
Author(s):  
Ismail Marzuki ◽  
Darmin ◽  
A. Sry Iryani
Keyword(s):  
Energy Source ◽  
Solid Waste ◽  
Alternative Energy ◽  
Anaerobic Fermentation ◽  
Energy Content ◽  
Sugar Industry ◽  
Renewable Energy Sources ◽  
Liquid Waste ◽  
Raw Material ◽  
Strong Acids

Study of the manufacture of biohydrogenBiohydrogen from Blotong Solid Waste and Sewer Liquid Waste by Anaerob Fermentation. Hydrogen is a clean and efficient energy source. The gas has the highest energy content per unit and is a fuel that is not chemically bonded with carbon. Hydrogen is an alternative energy source that can be produced from renewable energy sources such as biomass known as biohydrogen. Biohydrogen production can be done by fermentation technique. This method is a combination of chemical and biological approaches. Biological waste that became the raw material for the manufacture of hydrocarbons is degraded using various types of fungi. While chemically using strong acids from a strong start to a diluted. The specialty that exists in biohydrogen is that biohydrogen is easily converted to fuel or electricity without leaving pollutants. This research was conducted with the aim to utilize the industrial waste of sugar by using anaerobic fermentation hydrogenation bacteria to produce biohydrogen as renewable and environmentally friendly fuel and can identify good ratio to produce biohidrogen between solid waste with liquid waste. This research was conducted with 3 comparasion of variation between solid blotongwaste and sugar industry liquid waste that is: 1:1, 1:2, 2:1. From the results of this study it is concluded that the best ratio of the ratio of biohydrogen is the ratio ratio 2:1 which identifies the formation of visible gas in the balloon.

scholarly journals Improvement of purification technology of the liquid waste from fermentation production

2021 ◽  
Vol 6 (1) ◽  
pp. 7-14
Author(s):  
Galina Krusir ◽  
◽  
Olga Sagdeeva ◽  
Alfred Tsykalo ◽  
Yuliia Vilhovska ◽  
...  
Keyword(s):  
Waste Disposal ◽  
Food Industry ◽  
Large Scale ◽  
Anaerobic Fermentation ◽  
Biogas Production ◽  
Liquid Waste ◽  
Energy Crisis ◽  
Resource Saving ◽  
Methane Fermentation ◽  
Urgent Task

One of the areas of waste disposal of fermentation industries is anaerobic fermentation and biogas production, which becomes increasingly attractive for researchers not only because of the global energy crisis but also the environmental one. Biogas production is based on methane fermentation fundamentally different from other types of fermentation, which creates certain difficulties in its implementation on a large scale. Therefore, the development of innovative energy and resource-saving technologies for the processing of liquid waste from fermentation industries is an urgent task for the development of the domestic food industry. The aim of the work is to develop, theoretically substantiate and experimentally test the technology of processing liquid waste from fermentation plants.

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