Assessment of the Liquid Waste Management  Practice of Condominium Houses in Addis Ababa, Ethiopia

Abebe, Sisay; Demoze, Berihus

doi:10.24940/ijird/2017/v6/i6/jun17028

Cited by 3 publications

(6 citation statements)

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“…AAWSA recognises its highly subsidized model of delivery and limited capital budget means networked delivery is not possible for all parts of the city (Z&A and Tropics, 2014) and decentralised technologies are increasingly used for new housing projects. Some are low-tech, such as the use of stabilization ponds (Abebe and Demoze, 2017) but in other areas, high-tech, on-site solutions such as micro wastewater treatment plants have been adopted.…”

Section: Housing and Sanitation Nexus In Addis Ababamentioning

confidence: 99%

Infrastructure governance in the post-networked city: State-led, high-tech sanitation in Addis Ababa’s condominium housing

Cirolia

Hailu

King

et al. 2021

Environment and Planning C: Politics and Space

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Ethiopia’s mass-scale subsidized housing delivery programme has driven the rapid expansion of middle-income, mid-rise settlements on the outskirts of Addis Ababa, requiring the provision of infrastructure to newly developed areas. In the case of the Kotari housing project, established sanitation systems were deemed inappropriate for the site, resulting in the deployment of novel technology, a Membrane Bioreactor (MBR). Such decentralised technologies contribute to the heterogenous infrastructure configurations which characterise Addis Ababa’s sanitation landscape, reflected not only in material configurations but also in how they are governed. In this paper, we use the concept of ‘infrastructure interfaces’ as an analytical device to identify the key material connection points in the system. Working across scales, we scrutinise the governance arrangements at these critical junctures: the household, the block, the condominium, and the city. Our analysis challenges established understandings of infrastructural heterogeneity driven by the private sector, either through financialized elite infrastructures or informal survivalist practices. In Kotari, the state is the driver and the target is the lower middle class. Centring the state in these infrastructure configurations provides nuance to our understanding of how heterogeneity emerges. Our methodological approach accounts for governance at various scales, providing fresh insights into the relationality of infrastructure, particularly the human/technology interface and infrastructural failures. The case shows the importance of transcending binary readings of infrastructure configurations, such as on/off grid, state/private and formal/informal. Future work on the post-network city must go beyond simply denigrating or valorising alternative modes of service delivery.

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Section: Housing and Sanitation Nexus In Addis Ababamentioning

confidence: 99%

Infrastructure governance in the post-networked city: State-led, high-tech sanitation in Addis Ababa’s condominium housing

Cirolia

Hailu

King

et al. 2021

Environment and Planning C: Politics and Space

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“…28 Storing e-waste for unlimited time is very common among e-waste-sellers and institutions; however, a study showed that about 99% of the institutions in Addis Ababa don't have proper storage facilities. 17 According to a study carried out on e-waste management strategies in Ambo Town government educational institutes, the main reason of the poor waste management is the absence of legislations specifically dealing with e-waste. 29 The same author reported that the major reason for storing e-waste for unlimited time is the government order not to take any action except donation.…”

Section: E-waste Management Practicesmentioning

confidence: 99%

“…A study carried out in Addis Ababa showed that 94% of every broken old electronics and electrical equipment (including those which are returned from repairers because of the high level of damage) hoping that it would benefit them/have value in the future. 17 The same author also showed that 96% of the low and middle-income households are not willing to dispose or give free any of their e-waste indicating the high potential for the informal market 17 ; if they do not sell, they store it for an unknown time.…”

Section: E-waste Management Practicesmentioning

confidence: 99%

“…A cross-sectional study reported that about 93% of the households at all income levels in Addis Ababa have no idea about the impacts of e-waste on human health and the environment. 17 A study carried out in 2 sub-cities in Addis Ababa reported that about 40% of the respondent households have no any idea about e-waste. 13 Compared with studies in other countries, awareness about the impacts of e-waste on human health and environmental health is extremely low.…”

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confidence: 99%

“…Reports show that about 99% of store-keepers in Addis Ababa don't have the awareness about the impacts of hazardous substances and they haven't ever had training on e-waste. 17 At a high level of awareness, sellers followed by repairers are better than the others are because the majority of the repair and maintenance workers are high school and beyond. Findings show that e-waste repairers were better educated and aware than the dismantlers; and the repairers were significantly more aware of the likelihood of healthrelated risks associated with their jobs.…”

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confidence: 99%

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E-waste Awareness and Management Among People Engaged in E-waste Selling, Collecting, Dismantling, Repairing, and Storing Activities in Addis Ababa, Ethiopia

Ali

Akalu

2022

Environ�Health�Insights

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Associated with the increasing demand and supply of short life-span electrical devices, e-waste generation is rapidly increasing. This created a special business for some informal groups: dismantlers, e-waste sellers, repairers, and storekeepers. The objective of this study was to assess the awareness, management strategies, and associated influencing factors among the central role players of the e-waste-related business. A cross-sectional study was used to assess the awareness and management of 345 purposely selected e-waste workers including all those who are actively engaged in e-waste buying, selling, dismantling, storing, and transferring. A questionnaire was used to obtain the required information. The findings show that about 92% of the dismantlers, 70% of the sellers, and 55% of the repair and maintenance workers have poor awareness. The awareness level of the respondents is strongly associated with the newness of the issue ( V = 0.64) and lack of concern ( V = 0.44), and moderately associated with educational status ( V = 0.31), their lack of access to information (0.31), job type (0.28) and income level (0.26). The e-waste management among the study groups was limited to unsafe disposal (50%), unsafe storage (36%), and transfer (14%) to other users. The analysis showed that there is a statistically significant association between their job type and management systems (chi2 (6) = 139, P < .005, V = 0.45). Cramer’s V ( V = 0.45) shows a strong association between their job type and the e-waste management strategies. The awareness level of the respondents is very poor and influenced by several complex factors. During the study period, no study groups were practicing any of the proper e-waste management at all.

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Growth, Yield Components, and Yield Parameters of Maize (Zea mays L) as Influenced by Unified Use of NPSZnB Blended Fertilizer and Farmyard Manure

Ashenafi

Selassie

Alemayehu

et al. 2023

International Journal of Agronomy

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A two-year field experiment was carried out to scrutinize the integrated use of NPSZnB blended fertilizer and farmyard manure (FYM) on maize growth and yield components at Koga and Bachima villages in Mecha district and Geray and Jiga villages in Jabi Tehran district. Factorial combinations have five levels of NPSZnB (100, 150, 200, 250, and 300 kg·ha−1), and four rates of FYM (0, 12, 16, and 20 t·ha−1), plus one blanket recommendation (200 kg·ha−1 DAP and 150 kg·ha−1 Urea). A randomized complete block design with three replications was used to set up the studies. Except for days to silking and leaf area index at both locations, and days to physiological maturity, and ear length at Mecha, main and interaction effects on all parameters were detected at both locations. The only main effect of NPSZnB was detected on the harvest index at Jabi Tehnan. Generally, the results achieved from the interaction effect were better and greater than those obtained from the blanket recommendation although this was not the case for the main effects. Grain yields at Jabi Tehnan and Mecha were 5618.5 and 5421 kg·ha−1, respectively, as a result of the unified use of 250 kg·ha−1 NPSZnB and 20 t·ha−1 FYM and shortened days to 50% tasselling by 3.46 days and delayed 90% physiological maturity by 2.95 days than the blanket recommended fertilizer at Jabi Tehnan. As the main effect, compared to the blanket recommendation, 250 kg·ha−1 at Jabi Tehnan and 300 kg·ha−1 NPSZnB at Mecha reduced the days to 50% silking by 0.225 and 0.292 days, respectively. Contrasted with the conventional recommendation, the application of 300 kg·ha−1 NPSZnB minimizes days to 90% physiological maturity by 0.89 at Mecha, and the rise in FYM level from 0 to 20 t·ha−1 caused 0.832 and 0.279 extra days to reach 50% silking at Jabi Tehnan and Mecha, respectively. The yield had a very strong correlation that is positive with growth and yield components. Economic study: the use of 200 kg·ha−1 NPSZnB with 20 t·ha−1 FYM resulted in the maximum net benefit of 36221.06 and 35431.04 ETB ha−1 at Jabi Tehnan and Mecha, respectively. Thus, 250 kg·ha−1 NPSZnB with 20 kg·ha−1 FYM and 200 kg·ha−1 NPSZnB with no FYM application were the most acceptable rates at both locations with a low cost of production to small-scale farmers. For resource-rich farmers, 200 kg·ha−1 NPSZnB with 20 t·ha−1 FYM was also favorable, with the best net benefit at both locations.

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Assessment of the Liquid Waste Management Practice of Condominium Houses in Addis Ababa, Ethiopia

Cited by 3 publications

References 0 publications

Infrastructure governance in the post-networked city: State-led, high-tech sanitation in Addis Ababa’s condominium housing

Infrastructure governance in the post-networked city: State-led, high-tech sanitation in Addis Ababa’s condominium housing

E-waste Awareness and Management Among People Engaged in E-waste Selling, Collecting, Dismantling, Repairing, and Storing Activities in Addis Ababa, Ethiopia

Growth, Yield Components, and Yield Parameters of Maize (Zea mays L) as Influenced by Unified Use of NPSZnB Blended Fertilizer and Farmyard Manure

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