scholarly journals Change of Cast Amount and Pollutant Contents before and after the Eating of the Organic Waste and Upland Soil with Earthworms, Eisenia andrei and Amynthas agrestis

2015 ◽  
Vol 34 (2) ◽  
pp. 91-97
Author(s):  
Young-Eun Na
Keyword(s):  
Organic Waste ◽  
Eisenia Andrei ◽  
Upland Soil ◽  
Before And After ◽  
Amynthas Agrestis

scholarly journals Pengaruh Penambahan Campuran Kapur Tohor dan Kapur Barus (C10H16O) Terhadap Kepadatan Lalat Pada Sampah Organik

2019 ◽  
Vol 16 (1) ◽  
pp. 747
Author(s):  
Fadya Artha Aristanova ◽  
Gunung Setiadi ◽  
Isnawati Isnawati
Keyword(s):  
Organic Waste ◽  
T Test ◽  
Effective Dosage ◽  
P Value ◽  
Test Results ◽  
Waste Sample ◽  
Significant Difference ◽  
Before And After ◽  
Quasi Experimental ◽  
Test Result

Abstract: The Effect Of Lime (C10H16O) And Camphor (C10H16O) Against The Density Of Flies On Organic Waste. Fly is a disease-carrying vector so it is important to measure the density for control purposes. One of the controls that is done is on organic waste which is a breading source place of flies. Control is done by affixing the mixture of lime and camphor. This research aimed to determine the effect of mixture of lime and camphor against the density of flies in organic waste that is carried out in the garbage construction site while Southern Loktabat. This type of research is quasi-experimental that experimenting the provision of nine variations of dosage mixture of lime and camphor against the density of flies in organic waste with the organic waste sample was about 0,16m3. This research design used Pretest-posttest design. The analysis using statistical paired sample t-test, Kruskal Wallis test, and Least Significant Differences Test. The measurements showed a decrease in the density of the flies after administration of the lime and camphor mixture. Paired T-test results showed that in each treatment the p-value (2-tailed) <α (0.05) means that there is significant difference of flies density before and after treatment. Kruskal Wallis test result showed the p value (0,000) <α (0.05) which means there are significant differences between dosages. LSD test result showed that the most effective dosage is sixth dosage (35gr camphor+ 55gr lime/0,16m3 waste).

Research on the Stability of Pd-Based Multi-Component Supported Catalysts

2021 ◽  
Vol 871 ◽  
pp. 300-305
Author(s):  
Yong Li Zhang
Keyword(s):  
Waste Water ◽  
Organic Waste ◽  
Supported Catalysts ◽  
Catalytic Wet Oxidation ◽  
Characteristic Peak ◽  
Oxidation Treatment ◽  
Before And After ◽  
Ft Ir ◽  
The Stability

Based on SEM, FT-IR and XRD characterization, the catalyst Pd-Fe-Co-Ce/FSC (ratio 1:1:1:3) was calcined at a temperature of 550°C and a calcination time of 3 h. The catalyst is applied to the catalytic wet oxidation treatment of difficult-to-biodegradable organic waste-water. By the characterization of the catalyst before and after the reuse, it is verified that the SEM morphologis of the catalyst changed little, and the groups contained in the catalyst characterized by FT-IR hardly changed, and the XRD characteristic peaks did not change. From the SEM photos of the catalyst before and after use, the morphology of the catalyst does not change much, and the agglomerated support on the catalyst surface is slightly reduced; the absorption peaks of the FI-IR spectrum of the catalyst before and after use are not significantly different, indicating that the functional groups contained in the catalyst have not changed significantly; After using the catalyst, compared with before use, the characteristic peak shape of each characteristic diffraction did not change significantly. The results show that the catalyst Pd-Fe-Co-Ce/FSC (ratio 1:1:1:3) revealed a stable catalyst performance in the process of CWAO for the treatment of difficult-to-biodegradable organic waste-water.

scholarly journals Bacterial Succession during Vermicomposting of Silver Wattle (Acacia dealbata Link)

2021 ◽  
Vol 10 (1) ◽  
pp. 65
Author(s):  
Daniela Rosado ◽  
Marcos Pérez-Losada ◽  
Manuel Aira ◽  
Jorge Domínguez
Keyword(s):  
Salicylic Acid ◽  
Organic Waste ◽  
Sustainable Use ◽  
Sequence Variants ◽  
Eisenia Andrei ◽  
Acacia Dealbata ◽  
Β Diversity ◽  
Bacterial Succession ◽  
Waste Degradation ◽  
Functional Profiles

Vermicomposting is the process of organic waste degradation through interactions between earthworms and microbes. A variety of organic wastes can be vermicomposted, producing a nutrient-rich final product that can be used as a soil biofertilizer. Giving the prolific invasive nature of the Australian silver wattle Acacia dealbata Link in Europe, it is important to find alternatives for its sustainable use. However, optimization of vermicomposting needs further comprehension of the fundamental microbial processes. Here, we characterized bacterial succession during the vermicomposting of silver wattle during 56 days using the earthworm species Eisenia andrei. We observed significant differences in α- and β-diversity between fresh silver wattle (day 0) and days 14 and 28, while the bacterial community seemed more stable between days 28 and 56. Accordingly, during the first 28 days, a higher number of taxa experienced significant changes in relative abundance. A microbiome core composed of 10 amplicon sequence variants was identified during the vermicomposting of silver wattle (days 14 to 56). Finally, predicted functional profiles of genes involved in cellulose metabolism, nitrification, and salicylic acid also changed significantly during vermicomposting. This study, hence, provides detailed insights of the bacterial succession occurring during vermicomposting of the silver wattle and the characteristics of its final product as a sustainable plant biofertilizer.

scholarly journals CHARACTERIZATION AND USE OF SUBSTRATES COMPOSED OF ORGANIC WASTE IN THE PRODUCTION OF Colubrina glandulosa PERKINS SEEDLINGS

FLORESTA ◽  
2021 ◽  
Vol 51 (2) ◽  
pp. 381
Author(s):  
Victória Maria Monteiro Mendonça ◽  
Marcos Gervasio Pereira ◽  
Vitória Duarte S Silva ◽  
Ariovaldo Machado Fonseca Júnior ◽  
Sidinei Júlio Beutler ◽  
...  
Keyword(s):  
Organic Waste ◽  
Total Porosity ◽  
Dry Mass ◽  
Seedling Production ◽  
Urban Tree ◽  
Before And After ◽  
Substrate Fertility ◽  
Water Holding ◽  
Tree Pruning ◽  
Organic Compost

Urban organic waste has been gaining prominence in the composition of substrates, as it is a source of natural nutrients and a sustainable alternative to mitigate environmental impacts caused by improper waste disposal. The aim of this study was to characterize chemically and physically substrates based on organic waste and to evaluate the development of Colubrina glandulosa seedlings using composted urban tree pruning waste. Treatments consisted of different proportions of organic compost (CP), soil from the A horizon (SAH), aged manure (BM) and vermiculite, kept in tubes (Citropote®) with volume of 1.7 L. C/N ratio, water holding capacity (10 hPa), electrical conductivity, macroporosity, microporosity and total porosity of substrates before their use were determined. Substrate fertility analyses were carried out before and after seedling production. During the development of the seedlings, height (H) and stem diameter (SD) were measured at 60, 90 and 120 days. At 90 and 120 days, the seedlings were divided into shoots and roots to determine the dry mass of each compartment, Dickson quality index (DQI) and contents of nutrients (N, P, K, Ca and Mg). After the analysis of the results, it can be observed that the treatments with high proportions of CP had better physical characteristics, but also showed chemical limitation in the development of the seedlings. Treatments based on BM, SAH and lower proportion of CP had the highest average results for H, SD, H/SD ratio and DQI. 

Spent lubricant oil-contaminated soil toxicity to Eisenia andrei before and after bioremediation

Ecotoxicology ◽  
2019 ◽  
Vol 28 (2) ◽  
pp. 212-221 ◽  
Author(s):  
Sanye Soroldoni ◽  
Graciane Silva ◽  
Fabio Veríssimo Correia ◽  
Marcia Marques
Keyword(s):  
Contaminated Soil ◽  
Soil Toxicity ◽  
Eisenia Andrei ◽  
Lubricant Oil ◽  
Before And After

scholarly journals VERMICOMPOSTING AT SCHOOL: A SUSTAINABLE ALTERNATIVE FOR SOLID ORGANIC WASTE DISPOSAL

2016 ◽  
Vol 17 (1) ◽  
Author(s):  
Edson José MAZAROTTO ◽  
Cristiane Bezerra SILVA
Keyword(s):  
Waste Disposal ◽  
Organic Waste ◽  
Eisenia Andrei

Diante da grande quantidade de lixo gerado diariamente e a sua destinação irregular, surge à preocupação de como lidar com estes resíduos de modo sustentável, que possa trazer benefícios não só para o meio ambiente como para a população. Neste contexto aplica-se a técnica da vermicompostagem, uma forma de transformar os resíduos orgânicos, que compõe a maior parte do lixo que produzimos, em húmus. Para realização da vermicompostagem, foram utilizados baldes plásticos que seriam descartados, minhocas da espécie Eisenia andrei e resíduos gerados na cantina da escola. Foi ministrada uma aula teórica inicialmente para nivelar o conhecimento dos alunos, em seguida foi realizada a prática, onde foi possível observar a forma correta de montagem e manutenção do vermicompostor. Os alunos foram avaliados pela resolução de um questionário antes e após as aulas. Os dados obtidos demonstraram o entendimento dos alunos quanto ao que é lixo, diferenças entre compostagem e vermicompostagem, o que pode ser compostado pelas minhocas e as vantagens da utilização da vermicompostagem. A utilização de ferramentas diferenciadas para o ensino, como recurso multimídia e aulas práticas, estimula os alunos a uma percepção mais ampla do conteúdo, facilitando seu aprendizado e formação do conhecimento científico, colaborando para que busque uma nova forma de agir frente aos temas abordados e se tratando de reciclagem, mudando suas práticas de separação de lixo e utilização em vermicompostagem.

scholarly journals Pengolahan Sampah Rumah Tangga Menjadi Kompos Di Kelurahan Labuh Baru Timur Pekanbaru

2019 ◽  
Vol 2 ◽  
pp. 660-665
Author(s):  
Latifa Siswati ◽  
Ambar Tri Ratna Ningsih ◽  
Jeniwardi Jeniwardi
Keyword(s):  
Knowledge Transfer ◽  
Community Service ◽  
Organic Material ◽  
Organic Waste ◽  
Positive Impact ◽  
Household Waste ◽  
Composting Process ◽  
Before And After ◽  
Level Of Knowledge ◽  
Waste Bank

Labuh Baru Timur Village already has a Waste Bank, but to process organic waste into compost, cadres of Waste Banks every RW still do not have that knowledge. The Unilak Community Service Team has the required knowledge, and through this activity knowledge transfer is carried out, so that the Waste Bank Cadre will be more optimal in managing the waste that has been collected in the Waste Bank of each RW. The method of activities given to the community is awareness, counseling, demonstration, and evaluation. Awareness is intended to give awareness to Waste Bank Cadres that managing waste into compost will have a positive impact on their environment. Counseling aims to provide knowledge to the community so that they are more sensitive to their environment so that the environment will provide beneficial results for their families. The demonstration aims to provide knowledge directly, both through picture shows, and the practice of directly composting household waste. And evaluation is carried out to determine the level of knowledge of partners before and after the activity, and to determine the success of the activity. The results of the activities concluded that the participants' knowledge, understanding, and skills could increase ranging from 4% -95%. And the composting speed depends on the size of the organic material used as the compost material, the smaller the size of the pieces of organic material, the faster the composting process will be. Bio activators used to play a role in accelerating the composting process, besides the homogeneity of materials is also a consideration in composting

scholarly journals Pengolahan Sampah Rumah Tangga Menjadi Kompos di Kelurahan Tuah Madani Kecamatan Tampan Kota Pekanbaru

2020 ◽  
Vol 4 (3) ◽  
pp. 519-524
Author(s):  
Latifa Siswati ◽  
Rini Nizar ◽  
Anto Ariyanto
Keyword(s):  
Community Service ◽  
Organic Waste ◽  
Positive Impact ◽  
Household Waste ◽  
Transfer Of Knowledge ◽  
Direct Practice ◽  
Before And After ◽  
Level Of Knowledge ◽  
Waste Bank

Tuah Madani Subdistrict Tampan District already has a Waste Bank, but to process organic waste into compost, the Garbage Bank cadres in each RW still do not have this knowledge. The Unilak Community Service Team has the required knowledge, and through this activity a transfer of knowledge is carried out, so that the Garbage Bank Cadres will more optimally manage the waste that has been collected in the Waste Banks of each RW. The method of activities that will be given to the community is, awareness, counseling, demonstration, and evaluation. Awareness is intended to give awareness to the Garbage Bank Cadre that managing waste into compost will have a positive impact on the environment. Counseling aims to provide knowledge to the community so that they are more sensitive to their environment, so that the environment will provide results that benefit their families. Demonstration aims to provide knowledge directly, both through picture shows, and direct practice making compost from household waste. And an evaluation is carried out to determine the level of knowledge of partners before and after the activity, and to find out the success of the activity.

Deformation Replication

1970 ◽  
Vol 28 ◽  
pp. 280-281
Author(s):  
J. Temple Black
Keyword(s):  
Cutting Speed ◽  
Machining Process ◽  
Depth Of Cut ◽  
Rake Face ◽  
Orthogonal Machining ◽  
Aluminum Chips ◽  
Before And After ◽  
Materials Used ◽  
Glass Knife ◽  
Very High

Tool materials used in ultramicrotomy are glass, developed by Latta and Hartmann (1) and diamond, introduced by Fernandez-Moran (2). While diamonds produce more good sections per knife edge than glass, they are expensive; require careful mounting and handling; and are time consuming to clean before and after usage, purchase from vendors (3-6 months waiting time), and regrind. Glass offers an easily accessible, inexpensive material ($0.04 per knife) with very high compressive strength (3) that can be employed in microtomy of metals (4) as well as biological materials. When the orthogonal machining process is being studied, glass offers additional advantages. Sections of metal or plastic can be dried down on the rake face, coated with Au-Pd, and examined directly in the SEM with no additional handling (5). Figure 1 shows aluminum chips microtomed with a 75° glass knife at a cutting speed of 1 mm/sec with a depth of cut of 1000 Å lying on the rake face of the knife.

The Clinical, Roentgenological and Morphological Effects of an Acute Exposure of Phosgene on the Lungs of Dogs

1971 ◽  
Vol 29 ◽  
pp. 236-237
Author(s):  
R. F. Bils ◽  
W. F. Diller ◽  
F. Huth
Keyword(s):  
Latent Period ◽  
Chemical Industry ◽  
Toxic Substance ◽  
Lung Edema ◽  
X Rays ◽  
Beagle Dogs ◽  
Male And Female ◽  
Morphological Alterations ◽  
Before And After ◽  
Electron Microscopes

Phosgene still plays an important role as a toxic substance in the chemical industry. Thiess (1968) recently reported observations on numerous cases of phosgene poisoning. A serious difficulty in the clinical handling of phosgene poisoning cases is a relatively long latent period, up to 12 hours, with no obvious signs of severity. At about 12 hours heavy lung edema appears suddenly, however changes can be seen in routine X-rays taken after only a few hours' exposure (Diller et al., 1969). This study was undertaken to correlate these early changes seen by the roengenologist with morphological alterations in the lungs seen in the'light and electron microscopes.Forty-two adult male and female Beagle dogs were selected for these exposure experiments. Treated animals were exposed to 94.5-107-5 ppm phosgene for 10 min. in a 15 m3 chamber. Roentgenograms were made of the thorax of each animal before and after exposure, up to 24 hrs.

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