An Integrated Solid Waste Management Strategy for Semi-Urban and Rural Areas of Pakistan
In Pakistan, environmental degradation and consequent human health deterioration has rapidly accelerated in the past decade due to solid waste mismanagement. As the situation worsens with time, establishment of proper waste management practices is urgently needed especially in semi urban and rural areas of Pakistan. This study uses a concept of Waste Bank, which involves a transfer station for collection of sorted waste fractions and its delivery to the targeted market such as recycling industries, biogas plants, composting facilities etc. The management efficiency and effectiveness of Waste Bank depend strongly on the proficient sorting and collection of solid waste fractions at household level. However, the social attitude towards such a solution in semi urban/rural areas of Pakistan demands certain prerequisites to make it workable. Considering these factors the objectives of this study are to: [A] Obtain reliable data about quantity and characteristics of generated waste to define feasibility of business and design factors, such as required storage area, retention time, transportation frequency of the system etc. [B] Analyze the effects of various social factors on waste generation to foresee future projections. [C] Quantify the improvement in waste sorting efficiency after awareness campaign. We selected Gujrat city of Central Punjab province of Pakistan as it is semi urban adjoined by rural areas. A total of 60 houses (20 from each of the three selected colonies), belonging to different social status were selected. Awareness sessions about waste segregation were given through brochures and individual lectures in each selected household. Sampling of waste, that households had attempted to sort, was then carried out in the three colored bags that were provided as part of the awareness campaign. Finally, refined waste sorting, weighing of various fractions and measurement of dry mass was performed in environmental laboratory using standard methods. It was calculated that sorting efficiency of waste improved from 0 to 52% as a result of the awareness campaign. The generation of waste (dry mass basis) on average from one household was 460 kg/year whereas per capita generation was 68 kg/year. Extrapolating these values for Gujrat Tehsil, the total waste generation per year is calculated to be 101921 tons dry mass (DM). Characteristics found in waste were (i) organic decomposable (29.2%, 29710 tons/year DM), (ii) recyclables (37.0%, 37726 tons/year DM) that included plastic, paper, metal and glass, and (iii) trash (33.8%, 34485 tons/year DM) that mainly comprised of polythene bags, medicine packaging, pampers and wrappers. Waste generation was more in colonies with comparatively higher income and better living standards. In future, data collection for all four seasons and improvements due to expansion of awareness campaign to educational institutes will be quantified. This waste management system can potentially fulfill vital sustainable development goals (e.g. clean water and sanitation), reduce the need to harvest fresh resources from the ecosystem, create business and job opportunities and consequently solve one of the most pressing environmental issues of the country.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.2363215Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 644
 Hoornweg, D., Bhada-Tata, P., 2012. What a waste: A global review of solid waste management. Urban development & local government unit knowledge papers No.15.
 Amulya, K., Dahiya, S., Mohan, S.V., 2016. Building a bio-based economy through waste remediation: innovation towards sustainable future. Biorem. Bioeconomy, 497–521.
 GHO: Global Health Observatory, World Health Organization. 2014. Available from: http://www.who.int/gho/urban_health/situation_trends/urban_population_growth_text/en/.
 Miandad, R., Barakat, M.A., Aburiazaiza, A.S., Rehan, M., Nizami, A.S., 2016. Catalytic pyrolysis of plastic waste: a review. Process Saf. Environ. Prot. 102, 822–838.
 Miandad, R., Rehan, M., Ouda, O.K.M., Khan, M.Z., Shahzad, K., Ismail, I.M.I., Nizami, A.S., 2017. Waste-to-hydrogen energy in Saudi Arabia: challenges and perspectives. In: Biohydrogen Production: Sustainability of Current Technology and Future Perspective. Springer, India, pp. 237–252.
 Mahar, A., Malik, R.N., Qadir, A., Ahmed, T., Khan, Z. and Khan, M.A., 2007, September. Review and analysis of current solid waste management situation in urban areas of Pakistan. In Proceedings of the International Conference on Sustainable Solid Waste Management, 8, pp. 34-41.
 Ismail, I.M.I., Nizami, A.S., 2016. Waste-based biorefineries in developing countries: an imperative need of time. In: Paper presented at The Canadian Society for Civil Engineering: 14th International Environmental Specialty Conference, in London, Ontario, Canada, June 1–4, 2016.
 Nizami, A.S., Shahzad, K., Rehan, M., Ouda, O.K.M., Khan, M.Z., Ismail, I.M.I., Almeelbi, T., Basahi, J.M., Demirbas, A., 2017. Developing waste biorefinery in Makkah: a way forward to convert urban waste into renewable energy. Appl. Energy 186 (2), 189–196.
 Sharholy, M., Ahmad, K., Mahmood, G., Trivedi, R.C., 2008. Municipal solid waste management in Indian cities, a review. Waste Manage. 28, 459–467.
 Nizami, A.S., Mohanakrishna, G., Mishra, U., Pant, D., 2016a. Trends and Sustainability Criteria for the Liquid Biofuels. Biofuels: Production and Future Perspectives. CRC Press, pp. 59–95.
 Lew, R., 2016. Solid Waste Management in Pakistan. Retrieved January 09, 2018, (https://www.bioenergyconsult.com/solid-waste-management-in-pakistan/)
 Alam, P. and Ahmad, K., 2013. Impact of solid waste on health and the environment. International Journal of Sustainable Development and Green Economics (IJSDGE), 2(1), pp.165-168.
 Tan, S.T., Ho, W.S., Hashim, H., Lee, C.T., Taib, M.R., Ho, C.S., 2015. Energy, economic and environmental (3E) analysis of waste-to-energy (WTE) strategies for municipal solid waste (MSW) management in Malaysia. Energy Convers. Manage. 102, 111–120.
 Tozlu, A., Özahi, E., Abusog˘lu, A., 2016. Waste to energy technologies for municipal solid waste management in Gaziantep. Renewable Sustainable Energy Rev. 54, 809–815.
 Nizami, A.S., Ouda, O.K.M., Rehan, M., El-Maghraby, A.M.O., Gardy, J., Hassanpour, A., Kumar, S., Ismail, I.M.I., 2016b. The potential of Saudi Arabian natural zeolites in energy recovery technologies. Energy 108, 162–171.
 Sadef, Y., Nizami, A.S., Batool, S.A., Chaudhary, M.N., Ouda, O.K.M., Asam, Z.Z., Habib, K., Rehan, M., Demibras, A., 2016. Waste-to-energy and recycling value for developing integrated solid waste management plan in Lahore. Energy Source Part B 11 (7), 569–579.
 Pakistan Bureau of Statistics | 6th Population and Housing Census. (n.d.). Retrieved from http://www.pbscensus.gov.pk/