scholarly journals Economic Feasibility Analysis of Household Plastic Waste Management Using Trichoderma sp.

2020 ◽  
Vol 17 (2) ◽  
pp. 185-193
Author(s):  
Aidha Zulaika ◽  
Tri Edhi Budhi Soesilo ◽  
Nita Noriko ◽  
Nur Fitriyani Sahamony
Keyword(s):  
Waste Management ◽  
Economic Analysis ◽  
Environmental Sustainability ◽  
Field Research ◽  
Secondary Data ◽  
Plastic Waste ◽  
Economic Feasibility ◽  
Cost Ratio ◽  
Waste Processing ◽  
Trichoderma Sp

Processing and managing plastic waste must be carried out through the application of environmental sustainability that can integrate ecology-based management and consider the social and economic dynamics known as the Socio-Ecological System (SES). This study aimed to determine the economic feasibility of household plastic waste management using Trichoderma sp. The research method used was the observation of plastic waste management in the community and secondary data processing results from field research on plastic waste processing with Trichoderma sp. Data analysis was carried out by applying economic analysis using the Benefit-Cost Ratio (BCR) analysis. Based on the economic analysis, it was found 1.29 BCR values for plastic waste processing using Trichoderma sp.

scholarly journals STUDI KELAYAKAN EKONOMI PEMBANGUNAN UNDERPASS PADA SIMPANG JL. GATOT SUBROTO-JL. AHMAD YANI DI KOTA DENPASAR

1970 ◽  
Vol 4 (1) ◽  
Author(s):  
Lina Sarasdevi Santosa ◽  
P. Alit Suthanaya ◽  
I B. Rai Adnyana
Keyword(s):  
Interest Rates ◽  
Net Present Value ◽  
Secondary Data ◽  
Economic Feasibility ◽  
City Government ◽  
Primary Data ◽  
Cost Ratio ◽  
Benefit Cost Ratio ◽  
Direct Benefits ◽  
The City

Abstract : Based on data from the Central Statistics Agency (BPS) of Bali in 2013, the population density in the Metropolitan area SARBAGITA (Denpasar-Badung-Gianyar-Tabanan) was 1.057 inhabitants/km2 with an area of 1.753,63 km2 and population was 1.853.017 inhabitants. Availability of facilities and adequate transportation infrastructure is needed, but in fact the performance of roads in the city center has declined. It is characterized by an increase in travel delay problem. Traffic delay problems in the City of Denpasar commonly occur on the stretch of Gatot Subroto street. To minimize the existing problems, Denpasar City Government plans to develop an underpass at the intersection of Gatot Subroto street and Ahmad Yani street. The aim of this study was to analyze the direct benefits of underpass for road users, to analyze the costs necessary to realize and operate the underpass, and to analyze the economic feasibility of the underpass development investment. Based on primary data and secondary data were obtained from government agencies, the method of analysis in this study used the technique of Net Present Value (NPV), Benefit Cost Ratio (BCR) and Internal Rate of Return (IRR). Economic analysis conducted in this study used three criteria (NPV, BCR and IRR) with three interest rates (12%, 15% and 18% per year) stating that the construction of an underpass was economically feasible. For example in the second scenario where the interest rate 15% gain on the analysis of value NPV, BCR and IRR respectively is Rp. 233.462.340.102,00; 1,948 and 30,81%. Suggestions can be submitted from this research is the need to contemplate the effect of changes in land use in areas close to the area around the underpass and needed further study that takes into account the needs of additional traffic lanes.

scholarly journals Understanding Informal Actors Of Plastic Waste Recycling In Semarang City

2020 ◽  
Vol 18 (1) ◽  
pp. 162-170 ◽  
Author(s):  
Budi Prasetyo Samadikun ◽  
Arya Rezagama ◽  
Bimastyaji Surya Ramadan ◽  
Pertiwi Andarani ◽  
Erina Dwi Rumanti
Keyword(s):  
Waste Management ◽  
Informal Sector ◽  
Large Scale ◽  
Solid Waste Management ◽  
Secondary Data ◽  
Plastic Waste ◽  
Small Scale ◽  
Community Based ◽  
Enterprise Level ◽  
Recycling Agent

ABSTRAKKegiatan daur ulang sampah di Kota Semarang dapat dilakukan dengan cukup baik berkat campur tangan dari sektor informal. Sayangnya, kegiatan pengelolaan sampah formal tidak mempertimbangkan nilai pemulihan sampah. Penelitian ini bertujuan untuk mengidentifikasi aliran sampah plastik di sektor informal di Kota Semarang. Peneliti menggunakan wawancara mendalam untuk mengumpulkan data. Ada 46 agen daur ulang, termasuk lima (5) pemulung, 17 pengepul 20 perusahaan skala kecil, tiga (3) perusahaan skala besar, dan 1 perantara (pabrik penggilingan plastik) yang telah diwawancarai. Data dari Badan Lingkungan Hidup Kota Semarang digunakan sebagai data sekunder. Hasil penelitian menunjukkan bahwa jumlah sampah plastik yang dihasilkan oleh masing-masing agen daur ulang diperkirakan 23,98 kg/ hari di tingkat pemulung, 54,74 kg/ hari di tingkat pengepul, 347,48 kg / hari di tingkat perusahaan skala kecil, 1.735,3 kg / hari di tingkat perusahaan skala besar, dan 2.160 kg / hari di tingkat perantara. Produsen bijih plastik daur ulang berlokasi di luar Kota Semarang, sedangkan bank sampah berbasis masyarakat adalah bagian dari pengelolaan sampah berbasis masyarakat yang tidak mencari keuntungan. Oleh karena itu, tidak dibahas secara mendalam di penelitian ini.Kata kunci: sampah plastik, aliran sampah, agen daur ulangABSTRACTWaste recycling activities in Semarang City can be conducted quite well due to the interference of the informal sector. Unfortunately,  the formal waste management activities do not consider the utilization of waste recovery value. This study aims to identify the flow of plastic waste in the informal sector in Semarang City. We used in-depth interviews to collect data. There are 46 recycling agents, including five (5) scavengers, 17 scrap dealers, 20 small scale enterprises, three (3) large scale enterprises, and 1 intermediate (plastic grinding mill) that has been interviewed. Data from The Environment Agency of Semarang City obtained as secondary data. The results showed that the amount of plastic waste generated by each recycling agent was estimated at 23.98 kg/day at the scavenger level, 54.74 kg/day at the scrap dealer level, 347.48 kg/day at the small scale enterprise level, 1,735.3 kg / day days at large scale enterprise level, and 2,160 kg/day at the level of plastic waste intermediates. Recycled plastic ore producers are located outside Semarang City, whereas the community-based waste bank is part of community based solid waste management that is not looking for profit. Hence, it is not discussed in depth in this study.Keywords: plastic waste, waste flow, recycling agent

scholarly journals Pengelolaan Sampah Plastik Rumah Tangga dalam Rangka Pencegahan Pencemaran Lingkungan (Study di Lingkungan Kelurahan Pedungan Kecamatan Denpasar Selatan Kota Denpasar)

2021 ◽  
Vol 2 (1) ◽  
pp. 86-91
Author(s):  
I MADE ODE DWIYANA PUTRA ◽  
I Nyoman Gede Sugiartha ◽  
Luh Putu Suryani
Keyword(s):  
Waste Management ◽  
Environmental Pollution ◽  
Secondary Data ◽  
Plastic Waste ◽  
Household Waste ◽  
Factors Affecting ◽  
Sociological Approach ◽  
Management Effort ◽  
Household Waste Management ◽  
The Village

Plastic waste is a garbage that cannot be degradable and very harmful to environmental health conditions because the garbage is included in non-organic waste. In "household plastic waste management in order to prevent environmental pollution, there is  a  problem in  the waste management of household-generated. The problem is 1) how is the policy of setting the plastic waste management household as an effort to prevent environmental pollution in the village of Pedungan district of Denpasar? 2) What are the factors affecting household plastic waste management in Pedungan village? The method in this study is a type of empirical legal research. The approach to the problem used is a fact approach, a case approach, and a sociological approach. In this research, it aims to be able to know the problem solving and to assess the problem in the management of plastic waste in Pedungan village area about the types of garbage, how to manage plastic waste, and the result of plastic waste. Data collection techniques by observation, interviews, and questionnaires, read books and other literature. Analysis of legal data is analyzed and compiled systematically by using qualitative analysis, by analyzing the data obtained from primary and secondary data sources. The waste management is regulated in Decree No. 660/04/I/2019 on the management structure of Pedungan Asri's garbage Bank as household waste management effort, especially in Pedungan village environment.

scholarly journals Pemberdayaan Masyarakat Melalui Pelatihan Pengolahan Sampah Plastik Menggunakan Portable Garbage Reducer-Energy Producers (Po Grep) Di Gunungsari Kabupaten Lombok Barat

2019 ◽  
Vol 4 (1) ◽  
pp. 14
Author(s):  
Citra Ayu Dewi ◽  
Yeti Kurniasih ◽  
Yusran Khery
Keyword(s):  
Local Government ◽  
Waste Management ◽  
Community Participation ◽  
Plastic Waste ◽  
Waste Processing ◽  
Technology System ◽  
The People ◽  
Level Of Understanding ◽  
Activity Method ◽  
Academic Year

Target khusus yang ingin dicapai melalui kegiatan Program KKN-PPM  ini adalah: (a) meminimalisir limbah plastik yang sulit terurai khususnya di Gunungsari Kabupaten Lombok Barat, (b) meningkatkan efisiensi biaya pengelolaan sampah, (c) melakukan perbaikan pada sistem teknologi pengolahan sampah melalui pengolahan sampah plastik menggunakan Portable Garbage Reducer-Energy Producers (Po GREP), (d) meningkatkan partisipasi masyarakat agar lebih bersemangat dalam melakukan pengolahan sampah plastik menggunakan Portable Garbage Reducer-Energy Producers (Po GREP), (e) membangun kemitraan dan kerjasama yang efektif antara Perguruan Tinggi, Pemerintah Daerah dan masyarakat di Gunungsari Kabupaten Lombok Barat. Kegiatan KKN-PPM ini dilaksanakan selama 3 bulan pada semester genap tahun akademik 2019/2020. Adapun metode kegiatan KKN-PPM ini adalah metode workshop dalam bentuk pelatihan dan pendampingan. Berdasarkan hasil pelatihan yang telah dilakukan didapatkan tingkat pemahaman dan keterampilan masyarakat di Desa Gunungsari terkait pengolahan sampah plastik menjadi BBM masih kurang sehingga perlu adanya pendampingan dalam pengolahan sampah plastik menjadi BBM melalui PoGREP.Community Empowerment through Training on Plastic Waste Management Using Portable Garbage Reducer-Energy Producers (Po Grep) in Gunungsari, West Lombok RegencyAbstractSpecific targets to be achieved through the KKN-PPM Program activities are: (a) minimizing plastic waste that is difficult to decompose, especially in Gunungsari, West Lombok Regency, (b) increasing the efficiency of waste management costs, (c) making improvements to the waste processing technology system through processing plastic waste using Portable Garbage Reducer-Energy Producers (Po GREP), (d) increasing community participation to be more enthusiastic in processing plastic waste using Portable Garbage Reducer-Energy Producers (Po GREP), (e) building effective partnerships and cooperation between Universities, Local Government and the community in Gunungsari, West Lombok Regency. This KKN-PPM activity was carried out for 3 months in the even semester of the 2019/2020 academic year. The KKN-PPM activity method is a workshop method in the form of training and mentoring. Based on the results of the training that has been carried out, it is found that the level of understanding and skills of the people in Gunungsari Village regarding processing plastic waste into fuel is still lacking so there is a need for assistance in processing plastic waste into BBM through PoGREP.

scholarly journals Economic analysis of mushroom enterprise in Chitwan district, Nepal

2021 ◽  
Vol 6 (4) ◽  
pp. 408-415
Author(s):  
Ranju Acharya ◽  
Ujjwal Tiwari
Keyword(s):  
Economic Analysis ◽  
Group Discussion ◽  
Secondary Data ◽  
Regression Function ◽  
Climatic Conditions ◽  
Primary Data ◽  
Cost Ratio ◽  
Market Demand ◽  
Gross Margin ◽  
Benefit Cost Ratio

The majority of the population (66%) in-country “Nepal” are engaged in agriculture. However, domestic production finds it difficult to meet the annual demand of the people. Hence, people are moving from subsistence agriculture to embrace mushroom farming. This study focuses on economic analysis and analysis of the present status of mushroom farming and enterprise in this country. The study was conducted in the land area of Kalika Municipality and Bharatpur Metropolitan City. 30 mushroom farmers with two huts and at least three years of experience were selected from the study area. The primary data were collected through face-to-face interviews with the farmers, focus group discussion (FGD) and key informant interviews (KII). The secondary data was collected through various published articles and documents. The data analysis was done using basic statistics and a regression function. The benefit-cost ratio is 2.54 and a high gross margin is NRs.490,876.65 per kattha per year. The return to scale (RTS) is 0.80. Five marketing channels are present among which wholesalers and local collectors contributed the highest percentage of the share. However, the dominance of the intermediaries, timely unavailability of inputs, price fluctuation, disease and pest infestation were the major constraints. Disease and pest control, formation of the producer organization, improvised cultivation practices, timely and affordable availability of quality can be the major solution measures. Whereas, suitable climatic conditions, high productivity and growing market demand are the strengths of mushroom production in this study area. Mushroom farming is found to be a profitable business concerning competitive and comparative markets. 

scholarly journals Inorganic solid wastes from agrosilvopastoral sector in Ceres, Goiás, Brazil

2019 ◽  
Vol 10 (3) ◽  
pp. 134-146
Author(s):  
Ana Paula Veloso de Assis Sousa ◽  
Renato Rosseto ◽  
Izabel Cristina Bruno Bacellar Zaneti ◽  
Josana de Castro Peixoto ◽  
Lucimar Pinheiro Rosseto
Keyword(s):  
Waste Management ◽  
Rural Population ◽  
Field Research ◽  
Secondary Data ◽  
Solid Wastes ◽  
Private Institutions ◽  
Public And Private ◽  
Agrosilvopastoral System ◽  
Production Quantity ◽  
Official Records

This study aimed to verify the application of available legislation about to the production, quantity and appropriate disposal of inorganic solid wastes from agrosilvopastoral activities in Ceres/GO. The research had a descriptive character, with bibliographic, documentary and field research methods, based on quali-quantitative approaches, and the gathering of primary and secondary data. The data were extracted from official records and websites, including information of public and private institutions, and sourced by professional entities and associations responsible for collection, sorting, recycling and final disposal of solid wastes. On the basis of the obtained information, although Ceres/GO city has a small rural population, it was considered as good study model. The efforts and experiences carried out in Brazil and different countries gives us insights to understand and propose solutions related to the waste management from agrosilvopastoral system in Ceres/GO, which may be expanded into other Brazilian cities.

scholarly journals COLLABORATIVE GOVERNANCE IN THE MANAGEMENT OF PLASTIC WASTE BANKS IN PASURUAN REGENCY EAST JAVA PROVINCE

2019 ◽  
Author(s):  
Selfi Budi Helpiastuti ◽  
Siti Jahro
Keyword(s):  
Waste Management ◽  
Secondary Data ◽  
Collaborative Governance ◽  
Plastic Waste ◽  
Primary Data ◽  
Descriptive Research ◽  
Waste Bank ◽  
Depth Interviews ◽  
Analysis Determination

This study describes collaborative governance in the management of plastic waste bank in Pasuruan Regency. The problem of plastic waste experienced by Pasuruan Regency regarding the ineffectiveness of plastic waste management has led to Government efforts to overcome it, one of which is through a plastic waste bank. The emergence of plastic waste banks in Pasuruan Regency began with the participation of the community. This study uses a qualitative approach, a type of descriptive research and uses two types of data, namely primary data and secondary data. Data obtained through in-depth interviews, observation, and document analysis. Determination of research informants was done purposively. The validity of the data uses triangulation and analysis techniques using interactive models. The results of the study show that collaborative governance in the management of plastic waste banks has been carried out through four stages, namely assessment, initiation, deliberation, and implementation. The process of collaborative governance begins with the process of assessment or identification, carrying out plastic waste management involving several stakeholders. Next is the initiation process, conducting deliberations which were attended by stakeholders. Then the stages of deliberation through deliberation and dialogue to reach agreement between stakeholders in collaborating and the last stages of implementation carried out by all stakeholders in accordance with the assigned division of tasks. Collaboration in the management of plastic waste banks is still semiformal, which is only based on the commitment of the stakeholders involved. Keywords: collaborative governance, management of plastic waste banks

scholarly journals Economic analysis of low-temperature grain drying

2020 ◽  
pp. 930
Author(s):  
Pricila Araújo Santana ◽  
Daniela de Carvalho Lopes ◽  
Antonio José Steidle Neto
Keyword(s):  
Low Temperature ◽  
Economic Analysis ◽  
Net Present Value ◽  
Cost Effective ◽  
Economic Feasibility ◽  
Cost Ratio ◽  
Labor Costs ◽  
Benefit Cost Ratio ◽  
Furnace Fuel ◽  
Grain Drying

The main objective of this study was to simulate the economic feasibility of low-temperature grain drying systems considering Brazilian conditions and using three drying capacities, seven grain types and two furnace fuels. For this, 42 scenarios were simulated and compared among themselves by using an economic analysis based on the cash flow model with project lifetime of 20 years. The indices net present value, payback period, benefit-cost ratio and internal rate of return were applied during the analyses. Simulations showed that drying of coffee and beans in large systems presented higher economic feasibility, regardless of the furnace fuel used. All simulated scenarios were cost-effective provided that at least two drying cycles are performed per year. Labor costs, social taxes, grain type and drying capacity most affected the profitability of this kind of investment, while the furnace fuel less influenced the evaluated economic indices.

scholarly journals Thermochemical and Economic Analysis for Energy Recovery by the Gasification of WEEE Plastic Waste from the Disassembly of Large-Scale Outdoor Obsolete Luminaires by LEDs in the Alto Alentejo Region (Portugal)

2020 ◽  
Vol 10 (13) ◽  
pp. 4601
Author(s):  
Manuel Jesús Hermoso-Orzáez ◽  
Roberta Mota-Panizio ◽  
Luis Carmo-Calado ◽  
Paulo Brito
Keyword(s):  
Environmental Sustainability ◽  
Energy Recovery ◽  
Large Scale ◽  
Crop Residues ◽  
Fixed Bed ◽  
Plastic Waste ◽  
Economic Feasibility ◽  
Thermochemical Conversion ◽  
Great Success ◽  
Energy Potential

The recovery of urban waste is a social demand and a measure of the energy-environmental sustainability of cities and regions. In particular, waste of electrical origin, waste of electrical and electronic materials (WEEE) can be recovered with great success. The plastic fraction of these wastes allows their gasification mixed with biomass, and the results allow for producing syngas with a higher energy potential. This work allows for obtaining energy from the recovery of obsolete materials through thermochemical conversion processes of the plastic waste from the disassembly of the luminaires by mixing the said plastic waste in different proportions with the biomass of crop residues (olive). The gasification tests of these mixtures were carried out in a downstream fixed-bed drown daft reactor, at temperatures of approximately 800 °C. The results demonstrate the applied technical and economic feasibility of the technology by thermal gasification, for the production of LHV (Low Heating Value) syngas with highest power energy (more than 5 MJ/m3) produced in mixtures of up to 20% of plastic waste. This study was complemented with the economic-financial analysis. This research can be used as a case study for the energy recovery through gasification processes of plastic waste from luminaires (WEEE), mixed with agricultural biomass that is planned to be carried out on a large scale in the Alentejo (Portugal), as a solution applied in circular economy strategies.

scholarly journals Strategi Pengembangan Pengelolaan Rantai Pasok Dalam Pengelolaan Sampah Plastik

2020 ◽  
Vol 18 (1) ◽  
pp. 126-132
Author(s):  
Kikis Dinar Yuliesti ◽  
Suripin Suripin ◽  
Sudarno Sudarno
Keyword(s):  
Supply Chain ◽  
Waste Management ◽  
Organic Waste ◽  
Raw Materials ◽  
Supply And Demand ◽  
Field Research ◽  
Plastic Waste ◽  
Household Waste ◽  
Research Subjects ◽  
Coverage Area

Pengelolaan sampah rumah tangga masih menjadi salah satu masalah serius yang terjadi di kota besar. Pertambahan jumlah penduduk setiap tahunnya akan mempengaruhi volume, jenis dan karakteristik sampah yang dihasilkan setiap harinya. Dari hasil penelitian lapangan yang dilakukan di Kecamatan Semarang Tengah pada Tahun 2017 menunjukkan bahwa sampah yang dihasilkan mencapai hampir 0,98 kg  per orang setiap harinya. Adapun sampah yang dihasilkan terdiri dari  77,5 % sampah organik, 13,5 % sampah plastik, 5,5 % sampah kardus dan kertas, 2,2 %  logam / kaleng dan sisanya adalah kaca dan lainnya. Dari komposisi tersebut, sampah plastik merupakan sampah non organik yang memiliki prosentase tertinggi.  Subjek dalam penelitian ini adalah pelaku dalam rantai pasok pengelolaan sampah plastik. Dari subjek penelitian juga didapatkan faktor internal dan eksternal yang akan digunakan untuk menganalisis  kekuatan (strengths), kelemahan (weaknesses), peluang (opportunities), dan ancaman (threats) dalam meningkatkan dan menjaga keberlanjutan pengelolaan sampah plastik di Kecamatan Semarang Tengah.  Suatu sistem penyediaan bahan baku, proses produksi hingga proses pemasaran sampai ke tangan konsumen, dibutuhkan dukungan teknologi baik berupa aplikasi sederhana yang memberikan informasi tentang ketersediaan jenis dan jumlah bahan baku yang terupdate, sehingga dapat mempersingkat waktu produksi. Selain itu juga perlu dukungan sistem informasi untuk membantu pemasaran produk daur ulang, sehingga jangkauan pengguna / konsumen akan lebih banyak dan lebih luas. Keberadaan teknologi informasi memegang peranan penting sebagai media untuk mempercepat terpenuhinya supply dan demand serta menjamin keberlangsungan dan keberlanjutan usaha.STRATEGY FOR DEVELOPING SUPPLY CHAIN MANAGEMENT IN PLASTIC WASTE PROCESSING  ABSTRACT Household waste management is still one of the serious problems that occur in big cities. The increase of population each year will affect the volume, type and characteristics of waste produced every day. From the results of field research conducted in the District of Central Semarang in 2017 showed that the waste generated reached almost 0.98 kg per person every day. The waste generated consists of 77.5% organic waste, 13.5% plastic waste, 5.5% cardboard and paper waste, 2.2% metal / can and the rest is glass and others. From the results showed that plastic waste is non-organic waste which has the highest percentage. The subjects in this study were actors in the supply chain of plastic waste management.  The research subjects also obtained internal and external factors that will be used to analyze strengths, weaknesses, opportunities and threats in improving and maintaining the sustainability of plastic waste management in Central Semarang District. A system of supplying raw materials, the production process to the marketing process up to the hands of consumers, technology support is needed in the form of a simple application that provides information about the availability of types and quantities of updated raw materials, so as to shorten the production time. It also needs the support of information systems to help marketing recycled products, so that the coverage area of users / consumers will be more and wider. The existence of information technology plays an important role as a medium to accelerate the fulfillment of supply and demand and to ensure the sustainability of the business.

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