Municipal household solid waste collection strategies in an African megacity: Analysis of public private partnership performance in Lagos

Abstract

Managing municipal solid waste is a pervasive urban problem globally. While several strategies have been applied for efficient municipal solid waste management in developing economies, their performance level has not been critically investigated. Among these strategies, the public private partnership has widest appeal. This study examines the performance of public private partnership in household solid waste collection in Lagos, Nigeria. We collected primary data using a municipal solid waste survey in three residential density areas of Lagos megacity. Descriptive and inferential statistics were used to analyse the data. Two indexes of service performance, namely the service reliability index and operational quality index, were created to produce evidence on public private partnership performance in municipal solid waste collection in Lagos. Results show that the average amount of household solid waste generation per week ranges between 22.75 kg in the medium residential density area and 30.39 kg in the high residential density region of the city. The estimated per capita waste generated in Lagos Megacity is 0.95 kg day -1 . Regression models indicate that the public private partnership performance is significantly influenced by economic status, affordability, flexibility, consistency, cleanliness, coverage and accessibility, as well as number of waste collection vehicles, vehicle maintenance, capacity, trip rate, frequency, number of personnel and quality of personnel. Findings from this study reveal that Lagos residents have strong positive perception of public private partnership as a waste collection policy framework. The study has important policy and practical implications for urban waste management, public health and sustainability in developing economies.

Revisiting estimates of municipal solid waste generation per capita and their reliability

“…MSW generation per capita at the local level Figure 9 shows MSW generation per capita for 20 major municipalities in Asia and Africa [4,5,17,22,[50][51][52][53][54][55][56][57][58][59][60][61][62][63][64]. Each municipal value exceeds the corresponding national value for MSW generation per capita (Figs.…”

“…For example, Pattaya (Thailand), a beach resort city approximately 160 km from Bangkok, has a much higher MSW generation per capita (1.00 kg day -1 ) [5] than the national average (0.64 kg day -1 ). Addis Ababa, Ethiopia [50] Lusaka, Zambia [50] Dar es Salam, Tanzania [50] Dhaka, Bangladesh [51] Kolkata, India [52] Kathmandu, Nepal [53] Jakarta, Indonesia [54] Chennai, India [55] Nairobi, Kenya [56] Phnom Penh, Cambodia [57] Lahore, Pakistan [58] Tehran, Iran [59] Singapore [60] Beijing, China [61] Lagos, Nigeria [62] Shanghai, China [17] Hanoi, Vietnam [63] Seoul, Korea Rep. [64] Osaka, Japan [22] Bangkok, Thailand [5] Kuala Lumpur, Malaysia [4] MSW generation per capita (kg person -1 day -1 ) Definitions of MSW Generally municipalities or local governments have the responsibility of managing MSW, with a few exceptions such as in Malaysia, which shifted the responsibility for MSW to the federal government [68]. The existence of different definitions of MSW [69] makes it confusing to interpret and compare estimates of MSW generation in various countries.…”

“…MSW can be simply conceptualized as the waste managed by or for municipalities as a public service through a public works budget. MSW is often managed by private companies on behalf of local governments through private finance initiatives and public private partnerships [88,89]. When calculating MSW generation per capita, the reporters of the data should clearly note and declare the sources and types of waste included as MSW to verify the comparability of data.…”

Design-Attributes Relative Importance Index (DARII) Analysis for Improve Solid Waste Collection Services among Households in Kano Metropolis, North-Western, Nigeria

“…SWM is a significant issue of concern facing developing and even developed nations of the world, because of its adverse effects on human health and environmental quality [5]. Nigeria is battling with the issue of households' SWM like most developing nations, these challenges, however, ranges from poor collection coverage; inadequate transportation system; indiscriminate dumping of refuse and open burning; insufficient funds and institutional problems, [6].…”

“…Where W is the weight given to each statement by the respondents ranging from 1 to 5; A is the higher response integer (5), and N is the total number of those surveyed. The magnitude is weighted by the maximum value (A) of the response category which depends on the rating scale adopted.…”