scholarly journals The Influence of Corn Straw Extrusion Pretreatment Parameters on Methane Fermentation Performance

Materials ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3003
Author(s):  
Karol Kupryaniuk ◽  
Tomasz Oniszczuk ◽  
Maciej Combrzyński ◽  
Wojciech Czekała ◽  
Arkadiusz Matwijczuk
Keyword(s):  
Organic Matter ◽  
Energy Consumption ◽  
Moisture Content ◽  
Rotational Speed ◽  
Dry Matter ◽  
Raw Material ◽  
Extrusion Cooking ◽  
Corn Straw ◽  
Fresh Matter ◽  
Extruder Screw

The aim of the study is to determine the energy consumption of the extrusion-cooking process of corn straw under various conditions (screw speed, moisture content), water absorption measurements and water solubility indices as well as biogas efficiency evaluation. The extrusion-cooking of corn straw was carried out using a single screw extruder with L/D = 16:1 at various rotational screw speeds (70, 90, and 110 rpm) and with various initial moisture content of raw material (25 and 40%). Prior to the process, the moisture content of the raw material was measured, and next, it was moistened to 25 and 40% of dry matter. For example, at 70 rpm extruder screw speed, the temperature range was 126–150 °C. Energy consumption of straw pretreatment through extrusion-cooking was assessed in order to evaluate the possibility of using the process in an agricultural biogas plant. Biogas and methane efficiency of substrates after extrusion was tested in a laboratory scale biogas plant and expressed as a volume of cumulative methane production for fresh matter, dry matter, and dry organic matter. Pretreated corn straw moistened to 25% and processed at 110 rpm during the extrusion-cooking processing produced the most advantageous effect for methane and biogas production (51.63%) efficiency as compared to corn straw without pretreatment (49.57%). Rotational speed of the extruder screw influenced biogas and methane production. With both dry matter and dry organic matter, the increase of rotational speed of the extruder screw improved the production of cumulated biogas and methane. Pretreatment of corn straw has a positive effect on the acquisition of cumulated methane (226.3 Nm3 Mg−1 for fresh matter, 243.99 Nm3 Mg−1 for dry matter, and 254.83 Nm3 Mg−1 for dry organic matter). Preliminary analysis of infrared spectra revealed changes in the samples also at the molecular level, thus opening up the possibility of identifying marker bands that account for specific degradation changes.

Testing Study on the Influence Factors to the Straw Pellet Fuel Broken Strength

2013 ◽  
Vol 448-453 ◽  
pp. 786-790
Author(s):  
Wei Gao ◽  
Rong Fei Zhao ◽  
Qing Yu Liu ◽  
Xu Wei Bai
Keyword(s):  
Moisture Content ◽  
Optimal Parameter ◽  
Influence Factors ◽  
Raw Material ◽  
Single Factor ◽  
Quadratic Regression ◽  
Corn Straw ◽  
Fermentation Time ◽  
Optimization Parameter ◽  
Single Factor Experiment

This paper take link mold pellet pelletizer to carry on the pellet fuel manufacture experiment with corn straw stalk. The influence of moisture content, material size and fermentation time impact on broken strength is studied by single factor experiment. Through quadratic regression orthogonal rotating combination experiment, establish mathematics equation of the factors and the straw pellet fuel broken strength and analyze the important degree of each experimental factor impact on the granulation rate. Through the optimized computation, definite optimization parameter of the highest broken strength is that raw material moisture content is 20%, fermentation time is 4h and particle size is 2.5mm. The result of verifying experiment indicat that the optimal parameter combination and the predict data measured were consistent.

scholarly journals KECERNAAN NDF DAN ADF YANG MENDAPAT SUPLEMENTASI UREA MOLASSES MULTINUTRIENT BLOCK (UMMB) DARI BEBERAPA JENIS LIMBAH PERTANIAN DAN RUMPUT LAPANG PADA SAPI PERANAKAN ONGOLE (PO)

ZOOTEC ◽  
2018 ◽  
Vol 38 (2) ◽  
pp. 320
Author(s):  
Giandi Grahadi Turangan ◽  
B. Tulung ◽  
Y.R.L. Tulung ◽  
M.R. Waani
Keyword(s):  
Body Weight ◽  
Organic Matter ◽  
Rice Straw ◽  
Dry Matter ◽  
Crop Residues ◽  
Latin Square ◽  
Crossbred Cattle ◽  
Corn Straw ◽  
Peanut Straw

NDF AND ADF DIGESTIBILITY WHICH GET THE SUPPLEMENTED UREA MOLASSES MULTINUTRIENT BLOCK (UMMB) OF SOME CROP RESIDUES TYPE AND LOCAL GRASS ON ONGOLE CROSSBRED CATTLE. A research evaluating dry matter (DM) and organic matter (OM) digestibility of crops residues and local grass supplemented urea molasses multinutrient block (UMMB) on Ongole crossbred cattle (PO). Four male PO cattle, 12 – 18 months of age with ± 100 kg of body weight were used in this experiment. Latin Square Design 4 x 4 with 4 cows and 4 treatments was used. The treatments were : R1 : UMMB + local grass, R2: UMMB + Corn straw, R3: UMMB + Rice straw, and R4: UMMB + peanut straw. The results showed that there were significant effect (P<0.01) of treatments on NDF and ADF digestibility. C1 showed that NDF and ADF digestibility of local grass (68.44% and 61.37%) were higher (P<0.05) compared to crop residues (corn straw 65.25% and 58.59%, rice straw 62.63% dan 52.80%, and peanut straw 67.53% and 59.81%) respectively. C2 showed that NDF and ADF digestibility of legume straw was higher than grasses straw; and C3 showed that  NDF and ADF digestibility of rice straw was lower than corn straw. The results have concluded that : 1. NDF and ADF digestibility of local grass were higher compared to crop residues. 2. NDF and ADF digestibility of legume straw (peanut straw) was higher than grasses straw  (corn straw and ricce straw);3. NDF and ADF digestibility of  corn straw was higher than peanut straw.Key words: NDF and ADF digestibility, crop residues, UMMB, ongole crossbred cattle

scholarly journals Nutritional Quality and In Vitro Rumen Fermentation Characteristics of Silage Prepared with Lucerne, Sweet Maize Stalk, and Their Mixtures

Agriculture ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1205
Author(s):  
Musen Wang ◽  
Fujin Zhang ◽  
Xinxin Zhang ◽  
Ying Yun ◽  
Lei Wang ◽  
...  
Keyword(s):  
Organic Matter ◽  
Nutritional Quality ◽  
Dry Matter ◽  
Rumen Fermentation ◽  
Gas Production ◽  
Neutral Detergent Fiber ◽  
Ruminal Fermentation ◽  
Fresh Matter ◽  
In Vitro Rumen Fermentation

The objective of this work was to evaluate the pH, chemical composition, minerals, vitamins, and in vitro rumen fermentation characteristics of silage prepared with lucerne, sweet maize stalk (MS), and their mixtures. Freshly chopped lucerne and MS were combined in ratios of 100:0 (M0, control), 80:20 (M20), 60:40 (M40), 40:60 (M60), 20:80 (M80), and 0:100 (M100) on a fresh matter basis. Each treatment was prepared in triplicate, and a total of eighteen silos were fermented for 65 days. After 65 days of fermentation, the pH values in M0, M20, M40, M60, M80, and M100 silages were 5.47, 4.84, 4.23, 4.13, 3.79, and 3.61, respectively. As the MS proportion in the mixtures increased, silage K, Ca, P, Na, Fe, and Cu concentrations linearly decreased (p < 0.001) and so did vitamins B5 and K1 and α-tocopherol. In vitro rumen dry matter and organic matter degradability, pH, ammonia, total volatile fatty acid, and gas production linearly decreased (p < 0.01), while neutral detergent fiber concentration linearly increased (p < 0.001), with increasing proportion of MS. The in vitro dry matter and organic matter degradability rapidly decreased when the MS percentage was ≥60%. In conclusion, the M40 silage is the most suitable for livestock utilization in local forage production considering the balance of silage pH, nutritional quality, and in vitro ruminal fermentation characteristics.

scholarly journals Efficacy of organomineral fertilizers derived from biosolid or filter cake on early maize development

2019 ◽  
pp. 662-670
Author(s):  
Mara Lúcia Martins Magela ◽  
Reginaldo de Camargo ◽  
Regina Maria Quintão Lana ◽  
Melissa Cristina de Carvalho Miranda ◽  
Raquel Pinheiro da Mota
Keyword(s):  
Organic Matter ◽  
Plant Height ◽  
Dry Matter ◽  
Filter Cake ◽  
Block Design ◽  
Linear Increase ◽  
Mineral Fertilization ◽  
Fresh Matter ◽  
High Productivity ◽  
Stalk Diameter

In the current world scenario of agriculture it is necessary to find technologies to reach high productivity that are effective in providing soil conditioning improvement for the plants. Thus, this study analyzed the efficacy of organomineral fertilizers formulated with different organic matter sources on growth factors of maize. The experiment was done in a greenhouse at Campus Umuarama, Federal University of Uberlândia-MG, in a randomized block design, as a 2 x 5 + 2 factorial, containing two sources of organic matter, biosolid and filter cake, five doses of P2O5 recommendation for the crop and two additional treatments: mineral fertilization (100% of P2O5 of the recommended dose) and a control (no fertilizer), with four replications. Plant height, stalk diameter, and chlorophyll a and b were determined at 35 days after sowing (DAS); plant height, stalk diameter, shoot and root fresh and dry matter were determined at 65 DAS. The organomineral sources with biosolid and filter cake yielded greater height and diameter at 35 DAS than those of mineral fertilization. Regardless of the fertilizer organic matter source, stalk diameter at 35 DAS presented linear increase with increasing doses of the fertilizer sources. The use of fertilizer based on biosolid resulted in greater shoot fresh matter than the filter cake source, regardless of dose applied. In general, greater results were obtained for root fresh and dry matter at the greater fertilizer doses in comparison with the mineral fertilization. Organomineral fertilizers can be a viable alternative for partial or total substitution of mineral fertilization, since similar or better results were found for maize growth characteristics.

scholarly journals Pelletization of Sunflower Seed Husks: Evaluating and Optimizing Energy Consumption and Physical Properties by Response Surface Methodology (RSM)

Processes ◽  
2019 ◽  
Vol 7 (9) ◽  
pp. 591 ◽  
Author(s):  
Xuyang Cui ◽  
Junhong Yang ◽  
Xinyu Shi ◽  
Wanning Lei ◽  
Tao Huang ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Energy Consumption ◽  
Moisture Content ◽  
Physical Properties ◽  
Response Surface ◽  
Sunflower Seed ◽  
Biomass Energy ◽  
Raw Material ◽  
The Novel ◽  
Seed Husk

Pelletization is a significant approach for the efficient utilization of biomass energy. Sunflower seed husk is a common solid waste in the process of oil production. The novelty of this study was to determine the parameters during production of a novel pellet made from sunflower seed husk. The energy consumption (W) and physical properties (bulk density (BD) and mechanical durability (DU)) of the novel pellet were evaluated and optimized at the laboratory by using a pelletizer and response surface methodology (RSM) under a controlled moisture content (4%–14%), compression pressure (100–200 MPa), and die temperature (70–170 °C). The results show that the variables of temperature, pressure, and moisture content of raw material are positively correlated with BD and DU. Increasing the temperature and moisture content of raw materials can effectively reduce W, while increasing the pressure has an adverse effect on W. The optimum conditions of temperature (150 °C), pressure (180 MPa), and moisture content (12%) led to a BD of 1117.44 kg/m3, DU of 98.8%, and W of 25.3 kJ/kg in the lab. Overall, although the nitrogen content was slightly high, the novel manufactured pellets had excellent performance based on ISO 17225 (International Organization for Standardization of 17225, Geneva, Switzerland, 2016). Thus, sunflower seed husk could be considered as a potential feedstock for biomass pelletization.

scholarly journals Process Efficiency and Energy Consumption During the Extrusion of Potato and Multigrain Formulations

2018 ◽  
Vol 22 (2) ◽  
pp. 49-57 ◽  
Author(s):  
Arkadiusz Matysiak ◽  
Agnieszka Wójtowicz ◽  
Tomasz Oniszczuk
Keyword(s):  
Energy Consumption ◽  
Moisture Content ◽  
Energy Demand ◽  
Rotation Speed ◽  
Raw Materials ◽  
Mechanical Energy ◽  
Extrusion Process ◽  
Raw Material ◽  
Process Efficiency ◽  
Specific Mechanical Energy

AbstractThe aim of the research was to determine the effect of extrusion conditions (various moisture content of raw materials and screw rotation speed), as well as the effect of recipe composition on the process efficiency and the energy consumption during treatment of potato and multigrain products. The efficiency of the extrusion process (Q) was determined by the mass of the product obtained at a given time for all prepared raw material mixtures and the process parameters used, while the specific mechanical energy demand was determined using the SME index. The obtained results allow to conclude that the level of raw materials moisture content had a greater impact on the efficiency and energy consumption of the extrusion process than the variable screw speed during the treatment. The efficiency of the process increased with the increasing moisture of the tested compositions, while a decrease in the requirements of SME was observed. The use of differentiated raw material compositions also influenced the Q and SME values determined during the tests.

Experimental Study of Effecting Factors for Plant Straw Densification

2012 ◽  
Vol 512-515 ◽  
pp. 405-408 ◽  
Author(s):  
Xin Qi Yu ◽  
Xin Lei Wan ◽  
Qing Gang Liu
Keyword(s):  
Experimental Study ◽  
Moisture Content ◽  
Smooth Surface ◽  
Raw Materials ◽  
High Density ◽  
Raw Material ◽  
Corn Straw

In this paper, plant straw densification technology has been studied. The corn straw was taken as raw material in the experiment. The influences of raw material moisture content, densification pressure and raw material size to the compact process have been studied. The results show that the 13%~18% moisture content of the corn straw is the best scope in compact process. When the raw materials are densified at a pressure of 60MPa, the products have smooth surface, high density. While the pressure continuously increases, the increase of density is not obvious. The raw material size 10~20mm are suitable for densification.

Energy Consumption during Produciton of Corn Extrudates in Relation to the Process Parameters

2016 ◽  
Vol 20 (2) ◽  
pp. 125-131 ◽  
Author(s):  
Magdalena Kręcisz
Keyword(s):  
Energy Consumption ◽  
Mechanical Energy ◽  
Raw Material ◽  
Process Efficiency ◽  
Extrusion Cooking ◽  
Screw Speed ◽  
Process Measurement ◽  
Cooking Process ◽  
Specific Mechanical Energy ◽  
The Impact

AbstractThe objective of the paper was to determine the impact of the rotational screw speed and the level of moisture of raw material on the efficiency and energy consumption of the extrusion-cooking process. Measurement of the extrusion-cooking process efficiency (Q) was carried out through determination of the extrudates mass and energy consumption was determined with the use of a specific mechanical energy (SME). Based on the research results it was found out that the factor which significantly decides on the measured values was a rotational screw speed. Along with the increase of this parameter the energy consumption and extrusion-cooking process efficiency increased during processing of corn grits. Extrusion-cooking process efficiency depended also on the level of moisture of raw material. At lower moisture of raw material the efficiency decreased along with the increase of the screw speed and above 18% of the moisture level it increased. Reverse relation was reported during testing the energy consumption of the extrusion-cooking process.

scholarly journals Growth of Hymenaea stigonocarpa as a function of the addition of residues in degraded soil

2016 ◽  
Vol 20 (3) ◽  
pp. 223-229 ◽  
Author(s):  
Kellian K. G. S. Mizobata ◽  
Cinthia M. Santos ◽  
Kátia L. Maltoni ◽  
Gláucia A. Faria ◽  
Ana M. R. Cassiolato
Keyword(s):  
Organic Matter ◽  
Native Species ◽  
Dry Matter ◽  
Soil Surface ◽  
Initial Growth ◽  
Fresh Matter ◽  
Degraded Soil ◽  
Industrial Residues ◽  
Leaf Chlorophyll ◽  
Calcium Magnesium

ABSTRACT In areas where soil surface horizons were removed, the main edaphic problems are reduced amounts of organic matter and nutrients. Revegetation, especially with native species, has been indicated to recover these areas. Under this perspective, the present research has been developed to evaluate the contribution of organic and agro-industrial residues, as conditioners of soil fertility and their effects on initial growth of 'Jatobá-do-cerrado' seedlings. The treatments consisted of 4 agro-industrial residue doses (0, 15, 30 and 45 Mg ha-1) and 4 organic residue doses (0, 8, 16 and 32 Mg ha-1), with 16 treatments and 10 replicates. After 8 months of development, the soil was evaluated for phosphorus, organic matter, hydrogen potential, potassium, calcium, magnesium, potential acidity, aluminum and sum of bases, and plants were evaluated for leaf chlorophyll, height, collar diameter, fresh and dry matter of shoots and roots, and root length. The addition of residues to the degraded soil increased the fertility by raising calcium and magnesium levels. Agro-industrial residues contributed to increasing height, shoot dry matter and chlorophyll of H. stigonocarpa, while organic residues improved shoot fresh matter and chlorophyll.

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