Clean technology for biochar and organic waste recycling, and utilization in apple orchard

Chemosphere ◽  
2021 ◽  
Vol 274 ◽  
pp. 129914
Author(s):  
Yumin Duan ◽  
Jianfeng Yang ◽  
Yaofeng Song ◽  
Fengnan Chen ◽  
Xifeng Li ◽  
...  
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.


2009 ◽  
pp. 141-155
Author(s):  
Kuria Gathuru ◽  
Mary Njenga ◽  
Nancy Karanja ◽  
Patrick Munyao

Author(s):  
Tom Wassenaar ◽  
François Dumoulin ◽  
Jean-Luc Farinet ◽  
Jean-Marie Paillat ◽  
Laurent Thuriès ◽  
...  

2005 ◽  
Vol 68 (5) ◽  
pp. 541-544
Author(s):  
Noriko HORIE ◽  
Sadatoshi TABATA ◽  
Kiyoko HAGIHARA

2019 ◽  
pp. 13-26
Author(s):  
Nittaya Pasukphun ◽  
Yanasinee Suma ◽  
Anuttara Hongtong ◽  
Vivat Keawdunglek ◽  
Pussadee Laor ◽  
...  

This study investigated municipal solid waste generation rate and its compositionincluding the level of knowledge, attitude and practice on municipal solid waste (MSW) management of highland rural tourist area in Chiang Rai Province, Mae Salong Nok Sub-district, Thailand in order to propose the guidelines for effective MSW in rural tourist areas. Samples of MSW were collected during weekdays and several weekends, and separated into 4 categories: general,recyclable, organic and hazardous waste. About 40 % of the MSW consisted of organic waste; plastic bags were widely present, comprising more than 60 % of the mass of the general waste group. Level of knowledge, attitude and practice(KAP) on MSW was evaluated using questionnaires. While respondents scored 80 % and 76 %, respectively, on their level of knowledge of, and attitude to MSW, practice fell far short at only 37 %. The results led to a recommendation to strengthen waste separation at source, implement waste reduction and recycling concepts to reduce the volume of plastic bags, and introduce composting of food waste. The study also highlights economic and financial benefits of waste recycling. Additional value-added could be derived from the organic waste recycling program by promoting production of bioextracts and compost at household level, in order to reduce the amount of organic wastes and carbon emissions. The general and recyclable wastes could also be converted to energy as refuse-derived fuel 2 (RDF-2); the estimated average heating value of this RDF-2 was 23.56 MJ kg-1. To sustain MSW management in tourist areas, environmental education and environmental awareness campaigns are needed, using the appropriate local languages for communication, and introduction of a fairer system based on the polluter-pays principle for the business sector.


2019 ◽  
Vol 2 (3) ◽  
pp. 53
Author(s):  
Hastari Nastiti

Recycling of organic waste is important because it can reduce environmental problems. Composting is the alternative method for waste recycling, but naturally, the processes always waste a time. EM technology is proven to decrease the composting time. This research conducts the isolation for 3 kinds of indigenous bacteria from compost that used for liquid EM production. The yield of isolation process are 3.6x109 cfu/g phosphate degrading bacteria, 5.6x109 cfu/g cellulose degrading bacteria and       2.7x109 cfu/g nitrogen fixing bacteria. The medium are used for this study to make EM contain of aquadest, 25% sugar cane fresh liquid and 2% Nitrogen-Phosphor-Potassium mixing fertilizer. The final EM product contain of 8.2x108 cfu/g mixing bacteria. The solid starter production with liquid EM addition needs 14 days. The final solid starter has brown color and smell like soil, roughly texture but break up, 7.8 for pH average and 33.8oC for temperature average. In other hand, fresh compost production need 22 days. Further more, in final process, the fresh compost has black-brown color and smell like soil, smoothly texture and crumbs, humidity decreasing, 7.4 for pH average and  44.5oC for temperature average.


Sensor Review ◽  
2020 ◽  
Vol 40 (6) ◽  
pp. 657-663
Author(s):  
Yulius Harjoseputro ◽  
Eddy Julianto ◽  
Yonathan Dri Handarkho ◽  
Yuriska Indriati Talenta Ritonga

Purpose This study aims to build a prototype of a smart waste recycling bin to transform organic waste into liquid fertilizer. The internet of things (IoT) was used as a base to develop this bin to offer a recycling system that convenient to the household. Design/methodology/approach In general, this system will integrate a microcontroller and several sensors that able to be controlled by a smartphone app to manage the decomposition process of organic waste in the bin. In the end, black-box testing was conducted to ensure all hardware and software that construct the system can perform well as expected. Findings All the validation testing reveals all the integration of hardware and software that constructs the smart bin satisfied the performance requirement except for the real-time clock sensor that implies the slight error for a few seconds compares to the actual time. Originality/value Different from the previous works, this study focused on the involvement of society to participate in the recycling garbage process by designing the smart waste recycling bin system that fits to locate in the household environment, which allows users to monitor the fertilizer making process using IoT technology.


2011 ◽  
Vol 3 (1) ◽  
pp. 62-69 ◽  
Author(s):  
V. V. Teplyakov ◽  
V. S. Khotimskii ◽  
A. V. Yakovlev ◽  
M. G. Shalygin ◽  
L. G. Gasanova ◽  
...  

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