16 starts from the point at which it is generated
and includes collection, transportation, treatment and recycling before final disposal (Seadon, 2010; Marinela, 2009). A critical path in the management of HSW is collection from households (UN-HABITAT, 2010:11 in Aliu,
et al,
2014). One would agree with this assertion of the UN since the success of the recycling process depends on the efficiency of the collection system. An efficient HSW collection system considers separation from source as fundamental in the
solid waste management process, as noted in a few studies (Zhang,
et al, 2012 in Zhang & Guo Wen, 2014; Chen,
et al, 2018; Vassanadumrongdee
& Kittipongvises, 2018; Zhuang,
et al, 2008; Ilechukwu & Chukwukaora, 2016). There are countries that have made much progress with the source separation of
household solid waste namely, western countries while many cities in developing nations are still littered with huge volumes of uncollected municipal waste from households. For example, Sweden introduced the Recycling Behaviour Transition (RBT) procedure aimed at improving her citizens behaviour towards the separation of household solid waste at source in 1990; this system has greatly increased the volume of material
recovery and energy generation, which has led to a revolution in the Swedish waste management system to the extent that Sweden now imports solid waste
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