scholarly journals POSSIBILITIES OF APPLICATION THE EFFLUENT OF BIOGAS UNIT

Author(s):  
Y. V. Karaeva ◽  
◽  
S. S. Timofeeva ◽  
М. F. Gilfanov ◽  
◽  
...  

As the result of the biogas plant work , a lot of sludge (effluent) is formed, which can be used for various purposes. This article shows the possibility of appliance solids of effluent as an organic fertilizer, as well as fuel for generating thermal energy. The studied effluent was obtained after anaerobic fermentation of cow dung and biomass of the plant Amaranthus retroflexus L. In addition, mixtures of effluent with residues of plant biomass were examined . They are a mixture of seeds, stems and leaves in a ratio of 1:1,1:1,6. Five samples were examined: 100% effluent; 75% effluent and 25% biomass; 50% effluent and 50% biomass; 25% effluent and 75% biomass; 100% plant biomass. The content of nutrients (total nitrogen, phosphorus, potassium) in the samples significantly exceeds the indicators recommended by GOST 33380-2015. It was established that studied samples have high concentrations of copper and zinc. The studied effluent can not be used in its pure form as a fertilizer, but it is advisable to mix it with other components characterized by a “poor” mineral composition, such as peat. For the production of soil additives, the weight ratio of dry raw materials of effluent to lowland peat is 1:5. The lowest heat value of effluent in a mixture with plant biomass was from 12.4 MJ/kg to 14.1 MJ/kg. For heat value, it is most effective to use pure effluent and composite fuel consisting of 75% effluent and 25% biomass of the plant Amaranthus retroflexus L. The high ash content of the studied samples is due to the increased content of Cao and SiO2 oxides.

2011 ◽  
Vol 57 (No. 4) ◽  
pp. 137-143 ◽  
Author(s):  
M. Herout ◽  
J. Malaťák ◽  
L. Kučera ◽  
T. Dlabaja

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.


2019 ◽  
Vol 22 (2) ◽  
pp. 84
Author(s):  
Witariadi N. M. ◽  
N. N. Candraasih K.

The study aims to determine the productivity of pinto beans (Arachis pintoi) which is fertilized with differenttypes of organic fertilizer including its dosage. The study was conducted by using a completely randomized design(CRD) within two patterns of factors. Firstly, organic fertilizers are cow dung (S) and chicken manure (A). Secondly,dosages without fertilizer (D0), 15 tons/ha dosages (D1), 20 tons/ha dosages (D2), dosage of 25 tons/ha (D3); anddosage of 30 tons/ ha (D4) of organic fertilizers. The variables observed were plant height, number of branches,number of leaves, leaf dry weight, stem dry weight, total forage dry weight, leaf areat and leaf dry weight ratio withstem dry weight. The results showed no interaction between the type and dosage of fertilizer in which the growthand production of pinto beans (Arachis pintoi) gave the same results by fertilizing with 25-30 tons/ha dosagesof chicken manure. It can be concluded that increasing the productivity of pinto beans (Arachis pintoi) can befertilized with 25-30 tons/ha dosages of chicken manure


2021 ◽  
Vol 286 ◽  
pp. 02010
Author(s):  
Penka Zlateva ◽  
Angel Terziev ◽  
Krastin Yordanov

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.


2021 ◽  
Author(s):  
Dimbeswar Das ◽  
Hemen Deka

Abstract Vermicomposting potential of waste biomass of potato crop that are generated at the time of harvesting was studied employing Eisenia fetida. The experiment was carried out in pots taking two treatments; in one only potato plant biomass (PPB) was taken as raw materials whereas in the other a mixture of PPB with cow dung was engaged in the proportion of 5:1. The vermicomposted materials showed a reduction in C/N ratio, humification index, enhancement in nutrients profiles, ash contents, nitrogen-fixing, phosphate and potassium solubilizing bacterial population. The macronutrient enhancement in the vermicompost samples was recorded 3.8-4.4 fold for total N, 5-5.6 fold in available P, 1.6 fold in total K, 5.2-6.2 fold in total Ca and 1.6 fold in total Mg contents. The reduction in C/N was found in the rage of 92.5-94.4% in the vermicompost samples. The scanning electron microscope (SEM) images showed higher disintegration in the vermicompost products when compared with initial raw material and compost samples. Addition of cow dung significantly enhanced the quality and quantity of vermicompost final products besides positively affecting the earthworm population and biomass by the end of 60 days of experimental trials.


2021 ◽  
Vol 7 (1) ◽  
pp. 25-32
Author(s):  
Sri Widyastuti ◽  
Risa Suryananta Arfa

Water hyacinth (Eichonia crassipes) is one type of aquatic plant that has a fast growth rate. As a result, sunlight is blocked from entering the water, so that aquatic biota cannot carry out the photosynthesis process perfectly.  This study aims to determine the value of C/N ratio, levels of Phosphorus (P), Potassium (K), pH, and temperature (T) in composting for 16 days with the addition of 200 mL of bioactivator effective microorganism 4 (EM4) in each reactor. Variations of raw materials used are Control Reactor (RK) containing 1.5 kg of water hyacinth; Treatment Reactor 1 (R1) contains 0.5 kg of water hyacinth + 1 kg of cow dung; Treatment Reactor 2 (R2) contains 0.5 kg of water hyacinth + 1 kg of rice bran; and Treatment Reactor 3 (R3) contains 0.5 kg of water hyacinth + 1 kg of cow dung + 1 kg of rice bran. The results showed that the combination of raw materials had an effect on the quality of the organic fertilizer produced. The combination of Treatment 3 (R3) produced organic fertilizer with the best quality, namely C/N ratio = 15.30%, pH = 7.16, macronutrient P = 4.91% and K = 8.36% which met the quality standard requirements. Minister of Agriculture Number 261/KPTS/SR.310/M/4/2019 concerning the minimum technical requirements for organic fertilizers, biological fertilizers, and soil improvement.


2021 ◽  
Vol 2 (2) ◽  
pp. 74
Author(s):  
Irnanda Pratiwi ◽  
Winny Andalia ◽  
Madagaskar Madagaskar ◽  
Faizah Suryani ◽  
Selvia Aprilyanti

ABSTRACT RT 04 Sematang Borang Village has utilized a biogas installation to process cow manure into both solid and liquid organic fertilizer and also produce biogas. The biogas fermentation process and organic fertilizer processing experienced problems due to the grass within the cow manure entering the digester, which was caused by a leak in the digester cover and the low quality of organic fertilizer produced in the outlet tub. This community service activity aims to treat waste raw materials so that the fermentation process can take place optimally. The presence of animal feed or grass in the inlet tub will interfere with the fermentation process and cause the digester lid to leak. In the implementation of this community service program, the focus is on improving the digester and adding tools to aid the process of separating cow dung raw materials so that the fermentation process can be optimized. The biogas formation process requires an airtight, oxygen-free, or anaerobic (closed) space. Treatment is done by separating cow manure raw materials from feed grass by using a filter to produce good raw materials in the biogas fermentation process. So that cow manure that enters the digester can be fermented optimally. Keywords: Biogas; Digester; Fermentation; Cow Manure   ABSTRAK RT 04 Kelurahan Sematang Borang, sudah menggunakan instalasi biogas yang gunanya untuk mengolah kotoran ternak sapi menjadi pupuk organik padat dan cair serta juga menghasilkan biogas. Proses fermentasi biogas dan pengolahan pupuk organik ini mengalami kendala yang disebabkan rumput kotoran sapi yang masuk ke dalam digester yang disebabkan oleh bocornya tutup digester serta belum maksimalnya kualitas pupuk organik yang dihasilkan pada bak outlet rendah. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk  melakukan treatment pada bahan baku limbah sehingga proses fermentasi dapat berlangsung optimal. Adanya pakan ternak atau rumput di dalam bak inlet akan mengganggu proses fermentasi dan menyebabkan tutup digester bocor. Pada kegiatan pelaksanaan program pengabdian kepada masyarakat ini difokuskan pada perbaikan digester dan penambahan alat untuk proses pemisahan bahan baku kotoran sapi agar proses fermentasi lebih maksimal. Proses pembentukan biogas membutuhkan ruang yang kedap udara, tanpa oksigen atau anaerob (tertutup). Perlakuan pengolahan (treatment) dengan pemisahan bahan baku kotoran sapi dengan rumput pakan dengan menggunakan alat penyaring untuk menghasilkan bahan baku yang baik pada proses fermentasi biogas. Sehingga kotoran sapi yang masuk ke dalam digester dapat difermentasi secara maksimal. Kata kunci: Biogas; Digester; Fermentasi; Kotoran Sapi


2013 ◽  
Vol 37 (3) ◽  
pp. 202-210 ◽  
Author(s):  
Andressa Giovannini Costa ◽  
Suzan Kelly Vilela Bertolucci ◽  
Jorge Henrique Chagas ◽  
Elza Oliveira Ferraz ◽  
José Eduardo Brasil Pereira Pinto

Mentha x piperita L. is an aromatic and medicinal species belonging to the family Lamiaceae that is popularly known as peppermint. The aim of this study was to evaluate the effects of organic fertilizer sources on the biomass production, yield and chemical composition of peppermint (Mentha piperita L.) essential oil. The experiment was conducted using a completely randomized design (CRD) with a 2 x 5 factorial scheme, two sources of manure (cattle and poultry), five doses (0, 3, 6, 9 and 12 kg m-2) and four replicates. Different doses of cattle and poultry manure significantly affected plant biomass production and the responses of other variables, including leaf area, leaf weight ratio, leaf area ratio, root:shoot ratio, yield and chemical composition. Organic fertilizer doses of 9.0 kg m-2 cattle manure and 8.3 kg m-2 poultry manure to obtain the maximum total dry biomass. The highest yield of essential oil was obtained by applying 11.8 kg m-2 poultry manure. Differences in the chemical composition of the essential oil were observed for only three components (menthone, pulegone and menthyl acetate) without significant changes in the menthol content.


2020 ◽  
Vol 15 (1) ◽  
pp. 40
Author(s):  
MUHAMAD DJAZULI ◽  
JOKO PITONO

<p>ABSTRAK</p><p>Memenuhi kebutuhan bahan baku simplisia purwoceng (Pimpinellapruatjan) untuk industri jamu, dan mengurangi dampak eksplorasi dihutan sekitar pegunungan Dieng, perlu areal pengembangan purwocengyang baru. Tujuan penelitian ini adalah untuk mendapatkan taraf dan jenispupuk organik yang optimal untuk peningkatkan produksi dan mutusimplisia purwoceng di KP Gunung Putri, Cianjur yang tanahnya berpasirdengan ketinggian 1.500 m dpl. Percobaan menggunakan rancangan acakkelompok dengan 4 ulangan. Perlakuan terdiri dari 12 kombinasi jenis dantaraf pupuk organik. Hasil penelitian menunjukkan bahwa jenispemupukan organik berpengaruh nyata terhadap komponen pertumbuhandan produksi biomas tanaman. Pemberian pukan ayam menghasilkanbobot daun, akar, dan total paling baik dibandingkan dengan pukankambing, pukan sapi dan pupuk kompos. Aplikasi pukan ayam dengantaraf yang rendah sebesar 0,24 kg/tanaman atau setara dengan 20 ton/hamempunyai efisiensi pemupukan yang paling tinggi dan tidak berbedanyata dengan aplikasi pemupukan yang lebih tinggi. Kadar sitosterol didalam daun terlihat lebih tinggi dibanding di dalam jaringan akar.Sebaliknya, kadar stigmasterol di dalam akar terlihat lebih tinggidibandingkan di dalam daun. Aplikasi pukan ayam dan pukan sapimenghasilkan kadar sitosterol yang lebih tinggi dibanding aplikasi pukankambing dan pupuk kompos. Sebaliknya, pupuk kompos dan pukankambing menghasilkan kadar stigmasterol yang lebih tinggi dibandingpukan ayam dan pukan sapi. Kondisi agroklimat dataran tinggi GunungPutri, Cianjur cukup sesuai untuk pengembangan baru purwoceng.</p><p>Kata kunci : Pimpinella pruatjan, pupuk organik, taraf pupuk, produksi,mutu</p><p>ABSTRACT</p><p>Effect of type and dosage of organic fertilizer(fertilization) on production and quality of pruatjanIn order to fulfill the demands of pruatjan raw materials for jamuindustry, and to minimize negative impact of over exploration of naturalpruatjan plants in the forest surrounding Mount Dieng areas, it is importantto search new plantation areas for the development of such plant. Thisresearch aimed to find out optimal combination of type and dosage oforganic fertilizer for increasing production and quality of pruatjan rawmaterial. A field experiment was conducted at Gunung Putri experimentalstation, Cianjur. The experiment was arranged using randomized blockdesign with four replicates, and the treatment consisted of twelvecombinations of type and dosage of organic fertilizer. The results showedthat type of organic fertilizer significantly affected plant growth andbiomass production. Application of chicken dung produced leaf, root, andtotal fresh and dry weights higher than those of sheep and cow dung, andcompost. The highest fertilization efficiency was found on the applicationof chicken dung at low dosage with 0.24 kg/plant (or equivalent with 20t/ha), however, it was not significantly different with that of higher level offertilizer application. Sitosterol content was slightly higher in leaves thanin roots. On the contrary, stigmasterol and total steroid in pruatjan rootswere higher than those in leaves. Application of chicken and cow dungproduced higher sitosterol content than those of sheep dung and compost.However, application of compost and sheep dung produced higherstigmasterol content than those of chicken and cow dung. Agroclimaticcondition of Gunung Putri highland, Cianjur is well suited for thedevelopment of new pruatjan plantation area.</p><p>Key words : Pimpinella pruatjan, organic fertilizer, fertilizer level,production, quality</p>


2018 ◽  
Vol 7 (2) ◽  
Author(s):  
Firman L. Sahwan

Organic materials that are generally used as raw material for organic fertilizer granules (POG) is a natural organic material that has been degrade, smooth and dry. One of the main raw materials are always used with a very high percentage of usage, is manure. Manure potential in Indonesia is very high, amounting to 113.6 million tons per year, or 64.7 million tons per year to the island of Java. From this amount, it will be generated numbers POG production potential of 17.5 million tons per year (total Indonesia) or 9.9 million tons per year for the island of Java. While the realistic POG production predictions figures made from raw manure is 2.5 million tons annually, a figure that has been unable to meet the number requirement of POG greater than 4 million tons per year. Therefore, in producing POG, it should be to maximize the using of the potential of other organic materials so that the use of manure can be saved. With the use of a small amount of manure (maximum 30% for cow manure), it would be useful also to avoid the production of POG with high Fe content.keywods: organic material, manure, granule organic fertilizer


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