scholarly journals A Comparison of Organic Cement Made from Recycled Waste Material and Portland Cement

2021 ◽  
Vol 11 (4) ◽  
pp. 7442-7445
Author(s):  
M. Syarif ◽  
M. W. Tjaronge

Organic cement is an environmentally friendly alternative to Portland cement which is acquired by recycled organic waste and Mediterranean soil. Waste management is a global problem. The physical characteristic test results of the organic cement show that the weight test of fresh organic concrete is 2081kg/m³ and the dry weight of concrete is 2032kg/m³ which are smaller than Portland cement concrete's which are 2525kg/m³ and 2405 kg/m³ respectively. The fineness of alternative cement grains that passed the 200 mesh sieve is 56%, which is more than Portland cement's which is 52%. The solid weight of alternative cement is 1200kg/m3 whereas the solid weight of Portland cement is 1250kg/m3.

2021 ◽  
Vol 1143 (1) ◽  
pp. 012051
Author(s):  
A Z Abidin ◽  
H Bramantyo ◽  
M K Baroroh ◽  
C Egiyawati

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Daniel Dzepe ◽  
Paulin Nana ◽  
Hervé Mube Kuietche ◽  
Janaina Mitsue Kimpara ◽  
Ornela Magatsing ◽  
...  

AbstractProcessing organic waste using black soldier fly (BSF)-based technology offers a promising alternative for sustainable organic waste management and urban sanitation. This study was conducted to assess the influence of feeding strategies on the efficacy of BSF larvae to recycle organic wastes into value products. Fruit waste and chicken manure were used as organic waste samples while commercial chicken feed was used as a control, and were processed for 15 days in circular plastic containers (Ø 30 × 12 cm) with 50; 100; 150; and 200 mg/larva/day continuous and batch feeding diets, using 500 four-day-old larvae per diet, repeated four times. Larval survival rates were not significantly affected by the feeding strategies. However, average larval biomass of 83.69 ± 13.04 g and 82.46 ± 08.52 g was achieved for the continuous and batch feeding strategies, respectively, under favorable conditions. Larval feed reduction rates ranged from 24.65 ± 03.48% to 72.78 ± 01.48% and 24.52 ± 0.27% to 72.25 ± 12.13% with continuous and batch feeding strategies, respectively, and were significantly affected by the different daily diets. On the other hand, the bioconversion rates ranged from 13.34 ± 0.26% to 50.82 ± 02.27%, and the highest values were observed with the continuous feeding diets. This study confirms the efficacy of BSF larvae to thrive in different organic substrates and shows that the continuous feeding strategy can be better and enhance a sustainable small-scale organic waste management.


2021 ◽  
Vol 6 (4) ◽  
Author(s):  
Restu Auliani ◽  
Bella Elsaday ◽  
Desy Ari Apsari ◽  
Helfi Nolia

The cultivation of maggot Black Soldier Fly (BSF) is a bioconversion technology of organic matter that can be one solution to the problem of organic waste. This study aims to examine aspects of organic waste management through BSF Medan maggot cultivation, including operational technical, financing, institutional, regulatory and community and government participation aspects. This research is a descriptive observational study with an exploratory study approach using the interview method. Descriptive and quantitative data processing and analysis. Based on operational technical aspects, maggot cultivation has succeeded in converting organic waste into a source of animal feed protein and reducing the amount of organic waste. The amount of organic waste that is managed is 90kg/day with an effectiveness of 0.013% the total domestic waste in Medan. The financing and institutional aspects of waste management are managed in an organized manner through a cooperative body, namely the Primary Waste Management Cooperative (PKPS) Medan. The regulatory aspect that is used as reference is Medan Mayor Regulation No. 26 of 2019. Aspects of community participation directly from members of the cooperative and the Laucih wholesale market trader in Medan City. This bioconversion technology is able to overcome the problem of waste in an effort to reduce organic waste.


Author(s):  
Alja Perger

North America is a big consumer and consequently a big producer of waste. For the purpose of this project, we were primarily interested in collecting information in North America, focusing on Quebec primarily. The main research question was risen up during the fieldwork and assistance with the Canadian company. It clearly presents the enterprise readiness for obtaining a smart solution on organic/food waste problem. It is believed, how organic/food waste can be a resource of a high value. There is a capacity of creating a new path, where organic/food waste could become the important as plant/field nutrient supply. The circular approach to organic waste management is urgently needed in a way how the organic waste should be reduced and returned as productive resource input into our economy. The paper presents a new value towards a sustainability process that Canada is building at the moment. It represents the innovative approach, which is highly accepted in some cities in Quebec with the obtained pilot projects and excellent results. This paper is not only a simple research paper, but it is also the very important original innovative document which can be highly used on the level of each municipality, region and federal level.


Author(s):  
Lisa Aisa ◽  
Sulthon Arif Rakhman ◽  
Difa Ashmamillah ◽  
Desi Mutiara Fani ◽  
Gilang Aji Pradana

Most of the people at Ciaruteun Ilir Village, Cibungbulang Subdistrict, Bogor District are trashing the river. Population growth and consumption pattern change causes the volume, type, and characteristics of existing waste is increasing, especially household waste. Beside from households, there are also a lot of garbage has coming from the agricultural sectors. The main factors causing the community dispose garbage into the river is the unavailability of landfills, awareness and knowledge of the community related to waste management and utilization is still quite low. Seeing these conditions, the team through the Student Creativity Program for Community Service educate how about the management and utilization of waste named enviro school. Enviro school aims to shape the caring behavior of environmental community through environmental education start from an early age, grouping garbage independently, forming the institution of trash bank, and creating creative products from waste through the creation of vermicompost institutions and handicrafts with functional and economic value with target adult people on Ciaruteun Ilir Village RT 05/03. Enviro school has methods through 7 classes, it is pre class, first class, class, green class, brown class, white class, and enviroducation fair. Based on pre test results conducted at the beginning of the program, only 30.90% of people understand the concept of waste management and utulization, then an increase after four months running through the post test of 92.69%. Successfully this program visible from the increased awareness and knowledge about management and utulization of waste, the establishment of enviro trash bank as a structural institution for waste management, increased youth skills in the utilization of organic waste become vermicompost, and increasing skills of mothers in the utilization of anorganic waste.


2021 ◽  
Vol 4 (3) ◽  
pp. 678
Author(s):  
Dian Rosadi ◽  
Zulfa Emelda ◽  
Elwan Mustawan ◽  
Diny Febrianita ◽  
I Dewa Ayu Yulia Adelina

ABSTRAKSampah adalah material sisa, yang diproduksi ke alam baik dalam bentuk padatan, cair, ataupun gas. Permasalahan sampah merupakan masalah yang besar di Desa Pemurus RT 001B dikarenakan cara pengelolaan sampah rumah tangga hanya dibuang ke sungai. Oleh karena itu diperlukan edukasi mengenai pengelolaan sampah. Pengelolaan sampah merupakan kegiatan yang sistematis, menyeluruh, dan berkesinambungan yang meliputi pengurangan dan penanganan sampah. Namun, karena Pandemi Covid-19 intervensi Pengalaman Belajar Lapangan (PBL) I dimodifikasi menjadi penyuluhan dengan menggunakan media poster, leaflet, booklet dan juga video edukasi mengenai upaya pengelolaan sampah yang dikirimkan langsung ke masyarakat. Kegiatan PBL II yang dilakukan secara daring menggunakan media aplikasi grup WhatsApp. Berdasarkan hasil pre-post test yang dilakukan dengan 14 peserta diketahui bahwa terdapat peningkatan dari hasil pre-test dengan hasil post-test. Berdasarkan pengetahuan masyarakat tentang pengolahan sampah terjadi peningkatan dengan nilai Sig (0,004)>0,05. Berdasarkan sikap masyarakat mengenai pengolahan sampah terjadi peningkatan dengan nilai Sig (0,031)>0,05. Diharapkan kepada masyarakat agar ikut berperan aktif untuk meningkatkan pengetahuan dan sikap mengenai pengelolaan sampah khususnya yang ada di Desa Pemurus RT 001B melalui penyuluhan sehingga nantinya dapat menciptakan derajat kesehatan yang lebih baik. Kata kunci: pengelolaan sampah; desa pemurus rt 001b; penyuluhan. ABSTRACTWaste is waste material, which is produced in nature in the form of solid, liquid, or gas. The waste problem is a big problem in Pemurus Village RT 001B because the way of managing household waste is only thrown into the river. Therefore, education about waste management is needed. Waste management is a systematic, comprehensive, and sustainable activity that includes waste reduction and handling. Due to the Covid-19, PBL I intervention was modified into outreach using posters, leaflets, booklets and educational videos about waste management efforts that were sent directly to the community. PBL II activities carried out online using WhatsApp group. Based on the results of the pre-post test conducted with 14 participants, it was found that there was an increase from the pre-test results to the post-test results. Based on public knowledge about waste processing, there was an increase with the Sig value (0.004)>0.05. Based on people's attitudes regarding waste management, there was an increase with the value of Sig (0.031)>0.05. It is hoped that the community will take an active role in increasing knowledge and attitudes regarding waste management, especially in Pemurus Village RT 001B through counseling so that later it can create better health degrees. Keywords: waste management; pemurus village RT 001b; counseling.


2020 ◽  
Vol 202 ◽  
pp. 06038
Author(s):  
Devita Faradina ◽  
Maryono Maryono ◽  
Budi Warsito

The waste bank is an alternative waste management in Indonesia. The waste Bank in Gunung Kidul Regency, Yogyakarta is one of the waste banks that has been established and is active until now. The method used to determine the generation and composition of waste is SNI 19-3964-1994. In addition, research data are obtained by observing and interviewing directly in the field, then analyzed by quantitative descriptive. The results showed the average rate of waste generation in Gunung Kidul Regency was 0.48 kg / person / day. The highest composition of waste in Gunung Kidul Regency is organic waste, which is 77.61%, while non-organic waste is 22.39%. At present, the Waste Bank in Gunung Kidul Regency is able to reduce waste by 0.86% with a total of 6,423 m3 / year reduced waste. The benefits of the existence of a waste bank, among others, are in the field of waste management, in terms of economic and social aspects. The potential for waste recycling is 17.49% from 22.39% of the total non-organic waste.


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