scholarly journals Dataset of cow manure by earthworm bio-composting process

Data in Brief ◽  
2021 ◽  
pp. 106966
Author(s):  
Shuai Luo ◽  
Ruizhi Wei ◽  
Zicheng Qi ◽  
Qichao Zhang ◽  
Kaifen Wang
2018 ◽  
Vol 9 (2) ◽  
pp. 61-66 ◽  
Author(s):  
Thanh Phong Nguyen ◽  
Thi Ngoc Quynh Nguyen

The aim of this study was to assess the effect of composting process of cow manure and rice straw with application of cow urine and to evaluate the quality of composting products. There were two treatment piles, in which one pile was applied with cow urine every week and another pile without urine application. Each pile was set up by one tone cow manure and 500kg rice straw. The piles were half-covered by plastic foil to protect from rain and turned one a week. The composting duration lasted 8 weeks. The parameters such as temperature, pH, DM, density and nitrogen were monitored and observed during the 8-week period. The results showed that there was a significant difference in temperature, compost quality and duration between two piles with and without cow urine application. The application of cow urine increased significant nitrogen and phosphorous content and shortened the composting process. This study recommends that cow urine should be applied for composting process of cow manure and rice straw in order to increase the quality of compost. The final product was in the range of matured compost level and can be used directly for agriculture crop. Mục tiêu của nghiên cứu nhằm đánh giá ảnh hưởng đến chất lượng phân compost của việc bổ sung nước tiểu vào trong quá trình ủ phân từ nguyên liệu phân bò và rơm rạ. Thí nghiệm được thực hiện trên hai đống ủ phân, một đống ủ được bổ sung nước tiểu bò hàng tuần và một đống ủ không bổ sung nước tiểu bò như là một nghiệm thức đối chứng. Mỗi đống ủ được trộn 1 tấn phân bò và 500kg rơm. Đống ủ phân được đậy kín một nửa phía trên nhằm ngăn cản ảnh hưởng của mưa và được đảo trộn một lần mỗi tuần. Quá trình thí nghiệm được tiến hành trong 8 tuần. Các chỉ tiêu như nhiệt độ, pH, DM, mật độ và chất dinh dưỡng Nitơ và Phốt Pho được quan trắc trong thời gian ủ. Kết quả cho thấy có sự khác biệt đáng kể giữa hai đống phân ủ đối với các chỉ tiêu như nhiệt độ, chất lượng phân compost và thời gian ủ. Đống ủ phân có bổ sung nước tiểu có hàm lượng Nitơ và Phốt pho cao hơn và thời gian ủ ngắn hơn. Kết quả nghiên cứu khuyến cáo nên bổ sung nước tiểu bò cho quá trình ủ phân compost nhằm tăng hàm lượng chất dinh dưỡng cho sản phẩm phân compost. Sản phẩm sau quá trình ủ đạt mức độ phân hữu cơ và có thể sử dụng cho cây trồng.


2021 ◽  
Author(s):  
Yuhua Zhang ◽  
Manli Duan ◽  
Beibei Zhou ◽  
Quanjiu Wang ◽  
Zhenshi Zhang ◽  
...  

Abstract New sugar source, manno-oligosaccharide, can regulate the structure of microbes. The effects of adding manno-oligosaccharide at four different levels (0, 0.1%, 0.5%, and 1% w/w compost) to cow manure–straw compost on the composting process, degradation of lignocellulose, and bacterial community in this study was investigated. The results showed that adding 0.5% manno-oligosaccharide had the greatest effects on accelerating the composting process, reducing the toxicity, and improving the stability of the product. After composting for 25 days, 0.5% oligosaccharide treatment can decrease the hemicellulose, cellulose, and lignin contents to 2.25%, 11.25%, and 7.07% respectively, compared with CK. Manno-oligosaccharide affected the distribution of the bacterial community, inhibited pathogenic bacteria, and improved the abundance of functional genes. Finally, adding 0.5% manno-oligosaccharide mainly affected the degradation of lignocellulose by enhancing the C/N value and the abundances of Streptomyces and the secretion system during composting was demonstrated by redundancy analysis.


2018 ◽  
Vol 16 (2) ◽  
pp. 183-189
Author(s):  
Alfina Handayani

This study aims to analyze the effectiveness of orgadec starter in composting cattle (cow) manure. The study was conducted at the KWT Berdaya in Samiran Village, Selo District, Boyolali Regency. The composition of organic fertilizer for each 1 ton of cow manure mix with 5 kg of Orgadec. The observed parameters were carbon (C), nitrogen (N), phosphor (P), and potassium (K), C/N (rasio C and N) content. The parameters were measured before and after composting process. Furthermore, the data were analyzed descriptively. The results showed that Orgadec improved the composting process of livestock manure into organic fertilizer in terms of N-total, P₂O₅, K₂O and water content parameters, but only C/N ratios after meeting the standards in accordance with Permentan No.70/Permentan/SR.140/10/ 2011. In theory, the composting process using orgadec takes about 3 weeks, however the result shows that the composting process should need longer time, so it needs further study.


2003 ◽  
pp. 106-111
Author(s):  
Éva Dienes

Composting of agricultural waste is considered particularly important from the point-of-view of environmental protection. Degradation of organic substance results in a significant reduction of waste volume.The end product of the composting process, mature compost, can be used as soil coverage against excess loss of wastes, for mulching, for organic manure etc. The problem of composting has come into limelight in environmental studies and in agriculture.The quality of the mature compost is determined by physical, chemical and biological parameters of the composting process which, in turn, depend on initial composition of the raw materials, the technology, e.g. regular mixing and moistening and on environmental factors. Quality is the key question in compost use.We studied the composting process in compost windrows of different raw material composition. We measured temperature, humidity content, pH, organic substance content, nitrogen and carbon content.We counted the number of bacteria, microscopic fungy, ammonifying and cellulose decomposing microorganisms. We directed the composting process with turning weekly (to provide oxygen) and watering (to provide humidity content 40-60%).We set up windrows of 1 m3 volume from dry plant substances (cornstalk, pea straw, tomato stalk and crop, weeds) and cow manure not older than 1 week. The cow manure was used at ratios of 0%, 35%, 50%, 65% and 100%, respectively.We measured changes in compost temperature relationship with outside temperature until they were almoust the same. Humidity was 40-60% in most cases.At the beginning of the process, pH was slightly acidic-neutral; it later becomes neutral-slightly alkaline (pH: 6.93-8.02) as ammonia is liberated from proteins.At the end of the process, pH decreased again, due to humification.Organic substance content decreased as microorganisms mineralized them. Organic carbon content decreased gradually due to microorganisms used it as an energy.Total nitrogen content increased until middle of july and decreased gradually until than.The carbon/nitrogen rate were higher in the beginning, it decreased until july-august and increased by smaller degree until end of the process.The number of bacteria was higher in the first three weeks and between june-september. The number of cellulose degrading bacteria was the highest in the first three month, the number of ammonifying bacteria was the highest from the end of may until sepember.The number of microscopic fungy was significant in the second part of process, after july.


2020 ◽  
Vol 20 (2) ◽  
pp. 130
Author(s):  
Nguyen Nhat Huy ◽  
Nguyen Thi Thuy ◽  
Lam Pham Thanh Hien ◽  
Nguyen Thi Thanh Hang ◽  
Vuong Bao Khuong ◽  
...  

Odor pollution is an increasing problem in Vietnam as a tropical country during the urbanization and industrialization. The odor from sewage systems, farms of poultry, pig, and beef, food processing companies, composting factory, and landfills is a severe problem in many nearby residential areas. In this study, two lab-scale biofiltration systems where pristine local bio-media and cultured bio-media with specially formulated microorganisms were employed in biofilters and bio-trickling filter for controls of odor (i.e., hydrogen sulfide and ammonia) from composting process were fabricated and operated. The odorous gas flow was created by composting solid waste collected from an agricultural market (i.e., mainly vegetable), containing low concentrations of 1.32 ± 0.32 mgNH3 m-3 and 5.20 ± 0.28 mgH2S m-3 under stable condition. For the biofilter model, commercial compost and cow manure were used as substrates and packed into the models. For the bio-trickling filter model, K3 bio-media with biofilm developed by contacting activated sludge was used as packing material. The results showed that adding specially formulated microorganisms could reduce adaption time and lead to slightly better odor control performance. Among the substrates, cow manure provided the highest odorous gas removal efficiency of ≥ 90% during the stable phase with the elimination capacity of 0.0492 gNH3 m-3 h-1 and 0.225 gH2S m-3 h-1. The study results show a high potential of cow manure biofilter for control of H2S and NH3 gases in the practical application under Vietnam’s condition.


2020 ◽  
Vol 2020 ◽  
pp. 1-20
Author(s):  
Kelvin Reyes Pinto ◽  
Víctor Meza-Contreras ◽  
Julio César Alegre-Orihuela ◽  
Warren Réategui-Romero

Objectives. To characterize the total content of heavy metals (Cd, Cr, Cu, Hg, Mo, Ni, Pb, and Zn) and trace elements (As and Se) of interest, their bioavailability and solubility during the composting of cow manure and tree litter in piles inoculated with beneficial microorganism (IBM), or not inoculated (NBM), on the university campus of the Universidad Nacional Agraria La Molina (UNALM). Methods. The investigation evaluated composting in six piles, three IBM piles and three NBM piles, for 120 days. Every 30 days, a composite sample was taken from each pile. The raw materials used were cattle manure and tree litter. The variables analyzed were the total concentrations (content) of metals and trace elements of interest, extracted with diethylenetriaminepentaacetic acid/pentatetic acid (DTPA) (for the bioavailability study) and extracted with deionized water (for the solubility study). Results. The average values (n = 3) of the total content (mg·kg−1) on day 120 in IBM were in the following order: Zn (404.33) > Cu (86.33) > Pb (71.2) > Cr (34.33) > As (28.0) > Ni (13.83) > Mo (2.86) > Se (1.38) > Cd (1.32) > Hg (0.39) and in NBM: Zn (466.0) > Cu (112.23) > Pb (73.23) > Cr (35.33) > As (29.67) > Ni (14.37) > Mo (3.23) > Se (1.55) > Cd (1.38) > Hg (0.38). The values complied with the Austrian Compost Standard for Landscaping and Land Rehabilitation and the Peruvian Standard for Nonorganic Agriculture. Significant differences were observed in some elements ( p  < 0.05) between 0 and 120 days in both types of pile (IBM and NBM). Conclusions. For nonorganic agriculture in Peru, urban compost is recommended, whereby raw organic materials are inoculated with beneficial microorganisms during the composting process to reduce the bioavailability of Cu and Zn, as these elements showed less bioavailability than noninoculated piles. The composting process for both piles (IBM and NBM) reduced the solubility in Cu, Pb, and Zn.


2010 ◽  
Vol 76 (5) ◽  
pp. 1555-1562 ◽  
Author(s):  
Koki Maeda ◽  
Sakae Toyoda ◽  
Ryosuke Shimojima ◽  
Takashi Osada ◽  
Dai Hanajima ◽  
...  

ABSTRACT A molecular analysis of betaproteobacterial ammonia oxidizers and a N2O isotopomer analysis were conducted to study the sources of N2O emissions during the cow manure composting process. Much NO2 −-N and NO3 −-N and the Nitrosomonas europaea-like amoA gene were detected at the surface, especially at the top of the composting pile, suggesting that these ammonia-oxidizing bacteria (AOB) significantly contribute to the nitrification which occurs at the surface layer of compost piles. However, the 15N site preference within the asymmetric N2O molecule (SP = δ15Nα − δ15Nβ, where 15Nα and 15Nβ represent the 15N/14N ratios at the center and end sites of the nitrogen atoms, respectively) indicated that the source of N2O emissions just after the compost was turned originated mainly from the denitrification process. Based on these results, the reduction of accumulated NO2 −-N or NO3 −-N after turning was identified as the main source of N2O emissions. The site preference and bulk δ15N results also indicate that the rate of N2O reduction was relatively low, and an increased value for the site preference indicates that the nitrification which occurred mainly in the surface layer of the pile partially contributed to N2O emissions between the turnings.


2019 ◽  
Vol 8 (1) ◽  
pp. 79
Author(s):  
I Made Dwijantara Putra ◽  
Yohanes Setiyo ◽  
Sumiyati Sumiyati

  The use of diameter treatment and supplementary material for cow manure in the process of composting canang waste raw materials can produce quality in accordance with SNI. In this study using three treatments of composting basket diameter: 60 cm in diameter, 40 cm in diameter and 20 cm in diameter with the same height of 100 cm and the addition of cow manure: canang garbage 1: 1. Observed parameters include temperature, pH, carbon and nitrogen compost . The composting process lasts for thirty days with temperatures of 29 - 56 ? and pH of compost 4.3 - 6.9, with the resulting compost color blackish brown. In general, the quality of compost produced from the three treatments with a final C / N ratio of 13.05 - 22.0. Penggunaan diameter perlakuan dan bahan pelengkap kotoran sapi dalam proses pengomposan bahan baku limbah canang dapat menghasilkan kualitas yang sesuai dengan SNI. Dalam penelitian ini menggunakan tiga perlakuan diameter keranjang kompos: diameter 60 cm, diameter 40 cm dan diameter 20 cm dengan tinggi yang sama 100 cm dan penambahan kotoran sapi: sampah canang 1: 1. Parameter yang diamati meliputi suhu, kompos pH, karbon dan nitrogen. Proses pengomposan berlangsung selama tiga puluh hari dengan suhu 29 - 56 ? dan pH kompos 4.3 - 6.9, dengan warna kompos yang dihasilkan berwarna coklat kehitaman. Secara umum, kualitas kompos dihasilkan dari tiga perlakuan dengan rasio C / N akhir 13,05 - 22,0.


2012 ◽  
Vol 2 (2) ◽  
pp. 374-375
Author(s):  
Asha Buliya ◽  
◽  
K. C. Pancholi K. C. Pancholi ◽  
R. K. Paliwal R. K. Paliwal

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