Opportunities for Biomass and Organic Waste Valorisation Finding Alternative Solutions to Disposal in South Africa

Following an active science-meets-industry approach on dealing with biomass and organics waste streams, this timely book foregrounds key issues facing South African policy makers, industry practitioners and scholars. The editors drew together a wide pool of experts in the biomass and organic valorisation industry and research, offering the most recent research, development and innovation undertaken by South African universities and science councils. Spanning twelve chapters and divided into the following four key parts, the book offers solutions to industry and research on: Quantifying organic waste: An overview of potential sources and volumes is offered, with an identification and characterisation of solid biowaste residues. Biological treatment, covering the latest norms and standards; a biorefinery approach for the sugar industry; an integrated waste management approach for municipal sewage treatment; biogas production from abattoir waste; optimisation of biogas production from animal waste; and integrated bioremediation and beneficiation of bio-based waste. Mechanical and chemical treatment, covering the beneficiation of sawdust waste; developing sustainable biobased polymer and bio-nanocomposite materials; and the valorisation of waste mango seeds. Thermal treatment, which evaluates different municipal solid waste recycling targets in terms of energy recovery and CO2 reduction.

Part 1: Quantifying organic waste in South Africa 1. Overview of potential sources and volumes of waste biomass in South Africa SHH Oelofse and AP Muswema 2. Identification and characterisation of typical solid biowaste residues in South Africa: Potential feedstocks for waste-to-energy technologies N Tawona, BB Sithole and J Parkin Part 2: Biological treatment 3. Evaluation of the applicability of draft national norms and standards for organic waste composting facilities on landfill sites R du Plessis 4. A biorefinery approach to improve the sustainability of the South African sugar industry: An assessment of selected scenarios K Haigh, MA Mandegari, S Farzad, AG Dafal and JF Görgens 5. Integrated waste management approach: Use of Acti-zyme for municipal sewage treatment and recovery of biogas and biosolids MM Manyuchi, DIO Ikhu-Omoregbe and OO Oyekola 6. Biogas production from blood and rumen content of sheep slaughtering waste under ambient conditions R Niyobuhungiro and H von Blottnitz 7. Optimisation of biogas production by co-digestion of domestic animal waste A Kazoka, JM Ndambuki and J Snyman 8. Integrated bioremediation and beneficiation of biobased waste streams SH Rose, L Warburg, M le Roes-Hill, N Khan, B Pletschke and WH van Zyl Part 3: Mechanical and chemical treatment 9. Beneficiation of sawdust waste in the context of an integrated forest biorefinery mill: Kraft and pre-hydrolysis kraft pulping properties JE Andrew, J Johakimu, P Lekha, ME Gibril and BB Sithole 10. Development of sustainable biobased polymer and bio-nanocomposite materials using nanocellulose obtained from agricultural biomass A Mtibe, S Muniyasamy and TE Motaung 11. Valorisation of mango seeds via extraction of starch: Using response surface methodology to optimise the extraction process T Tesfaye and BB Sithole Part 4: Thermal treatment 12. Evaluation of different municipal solid waste recycling targets in South Africa in terms of energy recovery and CO2 reduction BO Oboirien and BC North

Linda Godfrey is a Principal Scientist with the Council for Scientific and Industrial Research (CSIR) and Associate Professor at Northwest University, South Africa. Johann F Görgens is a Professor of Chemical Engineering at the Department of Process Engineering, Stellenbosch University, South Africa. Henry Roman is the Director of Environmental Services and Technologies at the National Department of Science and Technology, South Africa.