Regarding conversion of agricultural waste into products I have a few suggestions for you:
Dai, Y., Sun, Q., Wang, W., Lu, L., Liu, M., Li, J., Yang, S., Sun, Y., Zhang, K.Xu, J. (2018). Utilizations of agricultural waste as adsorbent for the removal of contaminants: A review. Chemosphere 211 235–253. DOI: 10.1016/j.chemosphere.2018.06.179.
Donner, M., Verniquet, A., Broeze, J., Kayser, K.De Vries, H. (2021). Critical success and risk factors for circular business models valorising agricultural waste and by-products. Resources, Conservation and Recycling 165 105236. DOI: 10.1016/j.resconrec.2020.105236.
Gontard, N., Sonesson, U., Birkved, M., Majone, M., Bolzonella, D., Celli, A., Angellier-Coussy, H., Jang, G.-W., Verniquet, A.Broeze, J. (2018). A research challenge vision regarding management of agricultural waste in a circular bio-based economy. Critical Reviews in Environmental Science and Technology 48 (6), 614–654. DOI: 10.1080/10643389.2018.1471957.
Hossain, N., Zaini, J.H.Mahlia, T. (2017). A review of bioethanol production from plant-based waste biomass by yeast fermentation. International Journal of Technology 8 (1), 5–8. DOI: 10.14716/ijtech.v8i1.3948.
Mehmood, T., Nadeem, F., Qamar, S.A., Bilal, M.Iqbal, H. (2021). Bioconversion of agro-industrial waste into value-added compounds. In: Inamuddin, K.A. (Ed.), Sustainable bioconversion of waste to value added products. Advances in Science, Technology & Innovation. Springer, pp. 349–368.
Nguyen, T., Ngo, H., Guo, W., Zhang, J., Liang, S., Yue, Q., Li, Q.Nguyen, T. (2013). Applicability of agricultural waste and by-products for adsorptive removal of heavy metals from wastewater. Bioresource Technology 148 574–585. DOI: 10.1016/j.biortech.2013.08.124.