scholarly journals Circularity and Enclosures: Metabolizing Waste with the Black Soldier Fly

2020 ◽  
Vol 35 (1) ◽  
Author(s):  
Amy Zhang

This essay traces a scientific pilot project to transform the black soldier fly (Hermetia illucens) into a biotechnology to treat urban organic waste in accordance with the dominant cultural logics of an ecologically modern approach to waste management in contemporary China. A principle of urban waste management, circularity, and a spatial logic of urban living, enclosures, condition the scientific intervention that promises to harness animal metabolic labor as a biotechnology and a waste infrastructure that can be adapted to the urban ecologies of Guangzhou. While scientists emphasize the natural proclivities of insect metabolism to transform waste into value, my ethnographic research illustrates that the practice of aligning animal metabolism with urban metabolism is anything but natural or automatic. Together, circularity and enclosure, as guiding logics of waste management in Chinese ecological modernization, uphold a fiction of biocapital; they create the illusion that nature generates value and remediates environments without human intervention while mystifying and naturalizing the appropriation of nature and labor in the new green city. 摘要 本文研究中国科学家利用黑水虻分解餐厨垃圾生物技术的实验项目。昆 虫学家们希望,能让这一项目符合中国生态现代化垃圾处理理念,同时可以在现代化封闭式的居住社区中使用。昆虫学家强调,运用昆虫的代谢系 统来处理餐厨垃圾,既符合广州城市垃圾设施生态循环化的理念,也可利 用昆虫的天然生命周期將废物转变成资本。但人类学研究显示,昆虫的代 谢系統不可能与都巿垃圾循环規律自动匹配。在这个项目中,两个概念-循 环和封闭,仅仅是由生命资本打造生命经济的美好愿望。沒有人的介入, 只根据昆虫自然的生命周期的循环就能产生价值,这种理论混淆了生物能 与劳动力在发展新型綠色城市中的作用.

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):  
Amy Zhang

This chapter follows Dr. Wu in his work to devise a solution for organic waste treatment using insects. By examining the tension between China's urban development and the sustainable treatment of organic waste, the chapter argues that China's project to institute a green modernity increasingly shows a preference for scientific solutions that address local conditions. This preference is in stark contrast to previous policies and approaches under which Chinese cities, for example, pushed for the adoption of imported waste management technologies and, in the case of organic waste, expelled the animals that served as a de facto waste management system. The chapter also highlights the longer historical traditions and practices that buttress the development of technology. China has a specific history of using insects as a tool and resource and has also focused on biological pest control in domestic entomological research. As a waste management technology, the Black Soldier Fly project creates a new use for insects while simultaneously generating increased interspecies dependencies between insects and humans.


2021 ◽  
Vol 905 (1) ◽  
pp. 012021
Author(s):  
D T Ardianto ◽  
R H Rifai

Abstract Waste management in Boyolali Regency, Central Java, is still experiencing problems. Around 71% of the total 167 tons of daily waste has not been managed properly, and 51.88% of which is organic waste. Since early 2020, Black Soldier Fly start-up has started organic waste management, sold larvae products, and conducted training and consultation on organic waste in various regions. However, due to the current Covid-19 pandemic, its product marketing has not been optimal. For this reason, a profile video was designed as a medium of campaign for environmental issues to make people aware of waste management, especially organic waste. The campaign video was developed using five stages of ADDIE research and development model. The produced video is expected to be a campaign medium for better environmental management.


Author(s):  
Alfi Andri ◽  
Evita Herawati Legowo ◽  
Kholis Abdurrahman Audah

Road map the community service of Swiss German University activities in 2016 until 2020 about manage of non-organic wasted. In addition, Keranggan village is used as the pilot project to implement the program of non-organic waste management which is located in district of Tangerang, Banten, Indonesia. Swiss German University provides non-organic waste tool to facilitate burn non-organic waste such as, banana peels and humid waste are name of few and its names as traditional incinerator. The objective to develop this tool is used the burn the waste and the waste may use for fertilizer and bricks manufacturer. At the same time, to educate the villagers to look after their environments and lead to life clean and healthy. The activity has been implemented in 2018 and therefore, monitoring and evaluating is implemented in 2019. The results shows that the incinerator was rarely used for burning waste and it impacts to the environment. It is an input for the SGU’s academic research center to find out another methods to improve the awareness of the villagers to utilize the incinerator tools that lead better environment


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