Material Flow Analysis of Plastic Waste and Paper Waste from Waste Banks in Surabaya
Amar Addinsyah,
I. Dewa Ayu Agung Warmadewanthi
Issue:
Volume 9, Issue 5, October 2020
Pages:
97-101
Received:
17 August 2020
Accepted:
31 August 2020
Published:
14 September 2020
Abstract: Waste banks has been long being a part of waste management in Surabaya. Waste banks also plays a role in implementing the circular economy concept by collecting and reselling waste from household. The waste that has been collected from the waste banks were sold to the Main Waste Bank and small scrap dealers. This study aims to identify the material flows of plastic wastes and paper wastes from the waste bank to the recycling industry. The methods used for data collection includes survey and interview to the management of waste banks, management of the main waste bank, waste collectors, and management of the industries involved. The identification of material flows of plastic wastes and paper wastes from the waste banks to the recycling industries was done using the material flow analysis method. The material flow of the waste bank in the Central Surabaya region shown that the generation of waste generated at the waste bank was 34,815.1 kg per year. The waste was distributed to the main waste bank and waste collectors before finally being sold to the recycling industry and out of the system as plastic products at 13,041.45 kg per year and paper products at 20,311.14 kg per year.
Abstract: Waste banks has been long being a part of waste management in Surabaya. Waste banks also plays a role in implementing the circular economy concept by collecting and reselling waste from household. The waste that has been collected from the waste banks were sold to the Main Waste Bank and small scrap dealers. This study aims to identify the material...
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Effect of Level Soil Bund and Fayna Juu on Soil Physico-chemical Properties, and Farmers Adoption Towards the Practice at Dale Wabera District, Western Ethiopia
Issue:
Volume 9, Issue 5, October 2020
Pages:
102-115
Received:
14 August 2020
Accepted:
18 September 2020
Published:
30 October 2020
Abstract: The objective of this study was to evaluate the effect of physical soil and water conservation (SWC) structures and slope gradients on soil properties and to identify factors affecting farmer’s adoption of the SWC practices. Cropland treated with level soil bund, fanya juu, and adjacent cropland without conservation structures were considered along the three slope gradients. A total of 27 soil samples were collected from the top 20 cm soil depth in ‘X’ design square plot with a length of 10m x 10m and replicated three times. A total of 120 households (HH) were randomly selected among which 48.3% were adopters and 51.7% were non-adopters of SWC structures. The collected soil samples were analyzed following standard laboratory procedures and a total of 10 variables were fitted in the logistic regression model. The result of the analysis revealed that sand fraction (%), SOC (%), TN (%), CEC (meq/100gm), and pH (H2O) were showed significant (P ≤ 0.05) differences between cropland treated with conservation structures and control plots; however, available P (ppm) did not show significant (P ≤ 0.05) variation. With regard to slope gradient, soil textural fractions sand (%), Silt (%) and Clay (%), and CEC (meq/100gm) were showed significant difference (P ≤ 0.05). While BD (g cm-3), SMC (%), SOC (%), TN (%), and available P (ppm) did not significantly differ along the slope. The result of the model also showed that the explanatory variables; age, education level, family size, landholding, farm experience, availability of labor shortage, and extension service were significantly affected the adoption of SWC practices by the farmers. On the other hand; sex, marital status, and livestock holding were not significantly affected farmers’ adoption of SWC practice. Therefore, scaling up of the soil bund for the area is necessary and building capacity, providing training and experience-sharing through field days for farmers is essential. Moreover, further investigation is encouraged on the integrated effect of physical and biological SWC practice and its socioeconomic aspects for a better understanding of the effect of sustainable use of the land.
Abstract: The objective of this study was to evaluate the effect of physical soil and water conservation (SWC) structures and slope gradients on soil properties and to identify factors affecting farmer’s adoption of the SWC practices. Cropland treated with level soil bund, fanya juu, and adjacent cropland without conservation structures were considered along...
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