I am specifically looking for impacts of "landfilling" or dumping practices in southern India, but it's similar to waste management in many developing countries.
In Brazil we have only a general law called National Solid Waste Management Policy, enacted in August 2010. It has specific point on reverse logistics. However, step by step procedures are not given. We have more or less 3 thousand irregular landfills all over the country, and they have no control at all. You could employ emergy assessment (Solar Joule equivalent, SeJ) in order to asssess the amount of energy concentrated in solid wastes, but before, it would be necessary to classify such wastes mainly in dangerous and not dangerous, as well as inert ones. Another procedure could be the assessment of potential GHG emissions for organic wastes (in this case, organic is related to domestic solid wastes). Our legislation is quite rigorous, but it is not supervised. Municipalities just have inventory and shallow plans for solid wastes management. For reverse logistics, we have some types of wastes under such obligation, as electronic devices and similar, lamps, tires, agrotoxic packaging, batteries of all types. (I am sorry, I could not complete my answer few minutes ago in my cell phone).